cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Why only few are so successful ?
Creators: name: Mohanty, P. K.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Popular Physics (physics.pop-ph)
subject: Physics and Society (physics.soc-ph)
subject: General Finance (q-fin.GN)
subject: FOS: Physical sciences
subject: FOS: Economics and business

description: In many professons employees are rewarded according to their relative performance. Corresponding economy can be modeled by taking $N$ independent agents who gain from the market with a rate which depends on their current gain. We argue that this simple realistic rate generates a scale free distribution even though intrinsic ability of agents are marginally different from each other. As an evidence we provide distribution of scores for two different systems (a) the global stock game where players invest in real stock market and (b) the international cricket.
description: 8 pages, 3 eps figures, elsart.cls (included), accepted in Physica A
On the Rapid Collapse and Evolution of Molecular Clouds
Creators: name: Elmegreen, Bruce G.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: Stars generally form faster than the ambipolar diffusion time, suggesting that several processes short circuit the delay and promote a rapid collapse. These processes are considered here, including turbulence compression in the outer parts of giant molecular cloud (GMC) cores and GMC envelopes, GMC core formation in an initially supercritical state, and compression-induced triggering in dispersing GMC envelopes. The classical issues related to star formation timescales are addressed: high molecular fractions, low efficiencies, long consumption times for CO and HCN, rapid GMC core disruption and the lack of a stable core, long absolute but short relative timescales with accelerated star formation, and the slow motions of protostars. We consider stimuli to collapse from changes in the density dependence of the ionization fraction, the cosmic ray ionization rate, and various dust properties at densities above ~10^5 cm^{-3}. We favor the standard model of subcritical GMC envelops and suggest they would be long lived if not for disruption by rapid star formation in GMC cores. The lifecycle of GMCs is illustrated by a spiral arm section in the Hubble Heritage image of M51, showing GMC formation, star formation, GMC disruption with lingering triggered star formation, and envelope dispersal. There is no delay between spiral arm dustlanes and star formation; the classical notion results from heavy extinction in the dust lane and triggered star formation during cloud dispersal. Differences in the IMF for the different modes of star formation are considered.
description: 46 pages, 5 figures, scheduled for ApJ 668, October 20, 2007
Zener double exchange from local valence fluctuations in magnetite
Creators: name: McQueeney, R. J.
name: Yethiraj, M.
name: Chang, S.
name: Montfrooij, W.
name: Perring, T. G.
name: Honig, J.
name: Metcalf, P.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: Magnetite (Fe$_{3}$O$_{4}$) is a mixed valent system where electronic conductivity occurs on the B-site (octahedral) iron sublattice of the spinel structure. Below $T_{V}=122$ K, a metal-insulator transition occurs which is argued to arise from the charge ordering of 2+ and 3+ iron valences on the B-sites (Verwey transition). Inelastic neutron scattering measurements show that optical spin waves propagating on the B-site sublattice ($\sim$80 meV) are shifted upwards in energy above $T_{V}$ due to the occurrence of B-B ferromagnetic double exchange in the mixed valent metallic phase. The double exchange interaction affects only spin waves of $Δ_{5}$ symmetry, not all modes, indicating that valence fluctuations are slow and the double exchange is constrained by electron correlations above $T_{V}$.
description: 4 pages, 5 figures
The Millennium Galaxy Catalogue: the B-band attenuation of bulge and disc light and the implied cosmic dust and stellar mass densities
Creators: name: Driver, Simon P.
name: Popescu, Cristina C.
name: Tuffs, Richard J.
name: Liske, Jochen
name: Graham, Alister W.
name: Allen, Paul D.
name: De Propris, Roberto
Publisher: name: arXiv
Year: 2007
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: Based on our sample of 10095 galaxies with bulge-disc decompositions we derive the empirical B-band internal attenuation--inclination relation for galaxy discs and their associated central bulges. Our results agree well with the independently derived dust models of Tuffs et al., leading to a direct constraint on the mean opacity of spiral discs of Tau_B^f = 3.8 +/- 0.7 (central face-on B-band opacity). Depending on inclination, the B-band attenuation correction varies from 0.2 -- 1.1 mag for discs and from 0.8 -- 2.6 mag for bulges. We find that, overall, 37 per cent of all B-band photons produced in discs in the nearby universe are absorbed by dust, a figure that rises to 71 per cent for bulge photons. The severity of internal dust extinction is such that one must incorporate internal dust corrections in all optical studies of large galaxy samples. This is particularly pertinent for optical HST comparative evolutionary studies as the dust properties will also be evolving. We use the new results to revise our recent estimates of the spheroid and disc luminosity functions. From our best fitting dust models we derive a redshift zero cosmic dust density of rho_{dust} ~ (5.3 +/- 1.7) x 10^5, h M_{odot} Mpc^-3. This implies that (0.0083 +/- 0.0027), h per cent of the baryons in the Universe are in the form of dust and (11.9 +/- 1.7), h per cent (Salpeter-`lite' IMF) are in the form of stars (~58 per cent reside in galaxy discs, ~10 per cent in red elliptical galaxies, ~29 per cent in classical galaxy bulges and the remainder in low luminosity blue spheroid systems/components). [Abridged]
description: Accepted for publication in MNRAS (18 pages, 16 figures). This paper, the MGC data catalogues, and associated papers are available from the MGC website at http://www.eso.org/~jliske/mgc/
Differentially rotating force-free magnetosphere of an aligned rotator: analytical solutions in split-monopole approximation
Creators: name: Timokhin, Andrey
Publisher: name: arXiv
Year: 2007
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: In this paper we consider stationary force-free magnetosphere of an aligned rotator when plasma in the open field line region rotates differentially due to presence of a zone with the accelerating electric field in the polar cap of pulsar. We study the impact of differential rotation on the current density distribution in the magnetosphere. Using split-monopole approximation we obtain analytical expressions for physical parameters of differentially rotating magnetosphere. We find the range of admitted current density distributions under the requirement that the potential drop in the polar cap is less than the vacuum potential drop. We show that the current density distribution could deviate significantly from the ``classical'' Michel distribution and could be made almost constant over the polar cap even when the potential drop in the accelerating zone is of the order of 10 per cents of the vacuum potential drop. We argue that differential rotation of the open magnetic field lines could play an important role in adjusting between the magnetosphere and the polar cap cascade zone and could affect the value of pulsar breaking index.
description: 15 pages, 15 figures; accepted for publication in MNRAS
MPEC 2024-T46 : 2024 TF
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
subject: 2024 TF

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.
Potassium abundances in multiple stellar populations of the globular cluster NGC 4833
Creators: name: Carretta, Eugenio
Publisher: name: arXiv
Year: 2021
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: NGC 4833 is a metal-poor Galactic globular cluster (GC) whose multiple stellar populations present an extreme chemical composition. The Na-O anti-correlation is quite extended, which is in agreement with the long tail on the blue horizontal branch, and the large star-to-star variations in the [Mg/Fe] ratio span more than 0.5 dex. Recently, significant excesses of Ca and Sc with respect to field stars of a similar metallicity were also found, signaling the production of species forged in H-burning at a very high temperature in the polluters of the first generation in this cluster. Since an enhancement of potassium is also expected under these conditions, we tested this scenario by analysing intermediate resolution spectra of 59 cluster stars including the K I resonance line at 7698.98 A. We found a wide spread of K abundances, anti-correlated to Mg and O abundances, as previously also observed in NGC 2808. The abundances of K are found to be correlated to those of Na, Ca, and Sc. Overall, this chemical pattern confirms that NGC 4833 is one of the relatively few GCs where the self-enrichment from first generation polluters occurred at such high temperatures that proton-capture reactions were able to proceed up to heavier species such as K and possibly Ca. The spread in K observed in GCs appears to be a function of a linear combination of cluster total luminosity and metallicity, as other chemical signatures of multiple stellar populations in GCs.
description: 13 pages, 12 figures, 3 tables; accepted for publication on Astronomy and Astrophysics
Εκκλησία, σχίσμα και αίρεση κατά τον άγιο Νεκτάριο
Creators: name: Κασκανιώτη, Βλασία Δ.
Publisher: name: Aristotle University of Thessaloniki
Year: 2015
Subjects: Άγιος Νεκτάριος
Εκκλησία
Σχίσμα
Αίρεση
Saint Nektarios
Church
Schism
Heresy

description: Ο άγιος Νεκτάριος φωτίζει τη φύση και την ουσία της Μιας Εκκλησίας και καταγράφει τα γνωρίσματά της δίνοντας ιδιαίτερη έμφαση στη σχέση της με την Αγία Τριάδα, στο ρόλο του Αγίου Πνεύματος, στη σημασία της Παράδοσης και του συνοδικού συστήματος. Επίσης με οδύνη περιγράφει το σχίσμα ως αποκοπή από τη Μία Εκκλησία, και εκτός από την αναφορά του σε άλλα διάφορα σχίσματα, εμβαθύνει κυρίως στις συνθήκες εκείνες που οδήγησαν στο μεγάλο Σχίσμα του 1054.Οι αιρέσεις, που προτάσσοντας το νου αμφισβητούν τις αλήθειες και την Παράδοση της Μιας Εκκλησίας και επινοούν νέα θεωρήματα, θέτουν επίσης τον εαυτό τους εκτός του Σώματός της. Ο άγιος Νεκτάριος προσεγγίζει σημαντικές αποκλίσεις από τη ζωή και την πίστη της Εκκλησίας, με κυριότερες το πρωτείο, το filioque, το αλάθητο και άλλες που αφορούν τη λειτουργία του συνοδικού συστήματος, τα μυστήρια κ.ά. Τελικά και στο σχίσμα και στην αίρεση υπάρχει άρνηση μετοχής στην αλήθεια της Μιας, Αγίας, Καθολικής και Αποστολικής Εκκλησίας, όπου μόνο μέσα σε αυτήν μπορεί να πραγματοποιηθεί το αίτημα της ενότητας.
description: Saint Nektarios illuminates the nature and essence of the One Church and record the attributes of paying special attention to its relationship with the Holy Trinity, the role of the Holy Spirit, the importance of tradition and the synodical system.In addition, Saint Nektarios describes in affliction the schism as severance from the One Church, and apart from the reference to other various schisms, Saint Nektarios deepens in the circumstances that led to the great Schism of 1054. Heresies that prefixing the mind deny the truths and traditions of the One Church and invent new theorems also put themselves outside of the church body. Saint Nektarios approaches significant deviations from the life and faith of the Church, in particular the primacy of the Bishop of Rome, the filioque, the infallibility and others concerning the operation of the synodical system such as the sacraments etc. Finally, both schism and heresy refuse to share the truth of the One, Holy, Catholic and Apostolic Church, that only within it can the call of unity be realized.
Clock model interpolation and symmetry breaking in O(2) models
Creators: name: Hostetler, Leon
name: Zhang, Jin
name: Sakai, Ryo
name: Unmuth-Yockey, Judah
name: Bazavov, Alexei
name: Meurice, Yannick
Publisher: name: arXiv
Year: 2021
Subjects: subject: High Energy Physics - Lattice (hep-lat)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Computational Physics (physics.comp-ph)
subject: FOS: Physical sciences

description: Motivated by recent attempts to quantum simulate lattice models with continuous Abelian symmetries using discrete approximations, we define an extended-O(2) model by adding a $γ\cos(qφ)$ term to the ordinary O(2) model with angular values restricted to a $2π$ interval. In the $γ\rightarrow \infty$ limit, the model becomes an extended $q$-state clock model that reduces to the ordinary $q$-state clock model when $q$ is an integer and otherwise is a continuation of the clock model for noninteger $q$. By shifting the $2π$ integration interval, the number of angles selected can change discontinuously and two cases need to be considered. What we call case $1$ has one more angle than what we call case $2$. We investigate this class of clock models in two space-time dimensions using Monte Carlo and tensor renormalization group methods. Both the specific heat and the magnetic susceptibility show a double-peak structure for fractional $q$. In case $1$, the small-$β$ peak is associated with a crossover, and the large-$β$ peak is associated with an Ising critical point, while both peaks are crossovers in case $2$. When $q$ is close to an integer by an amount $Δq$ and the system is close to the small-$β$ Berezinskii-Kosterlitz-Thouless transition, the system has a magnetic susceptibility that scales as $\sim 1 / (Δq)^{1 - 1/δ'}$ with $δ'$ estimates consistent with the magnetic critical exponent $δ= 15$. The crossover peak and the Ising critical point move to Berezinskii-Kosterlitz-Thouless transition points with the same power-law scaling. A phase diagram for this model in the $(β, q)$ plane is sketched. These results are possibly relevant for configurable Rydberg-atom arrays where the interpolations among phases with discrete symmetries can be achieved by varying continuously the distances among atoms and the detuning frequency.
description: 23 pages, 38 figures, 2 tables
Nonlinear Thermal Properties of Three-Terminal Mesoscopic Dielectric Systems
Creators: name: Ming, Yi
name: Wang, Zhexian
name: Li, Qiang
name: Ding, Zejun
Publisher: name: arXiv
Year: 2007
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: This paper studies the thermal properties of three-terminal mesoscopic dielectric systems in the nonlinear response regime at low temperature. For a symmetric three-terminal system, when the temperature is finitely different between the left and right thermal reservoirs, the temperature of the central thermal reservoir is always higher than the averaging temperature of the others. This nonlinear thermal phenomenon is also observed for asymmetric three-terminal systems. At the end, a model of thermal rectification is presented.
description: 9 pages, 3 figures
New Constraints on the $^{12}$CO(2-1)/(1-0) Line Ratio Across Nearby Disc Galaxies
Creators: name: Brok, J. S. den
name: Chatzigiannakis, D.
name: Bigiel, F.
name: Puschnig, J.
name: Barnes, A. T.
name: Leroy, A. K.
name: Jiménez-Donaire, M. J.
name: Usero, A.
name: Schinnerer, E.
name: Rosolowsky, E.
name: Faesi, C. M.
name: Grasha, K.
name: Hughes, A.
name: Kruijssen, J. M. D.
name: Liu, D.
name: Neumann, L.
name: Pety, J.
name: Querejeta, M.
name: Saito, T.
name: Schruba, A.
name: Stuber, S.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: Both the CO(2-1) and CO(1-0) lines are used to trace the mass of molecular gas in galaxies. Translating the molecular gas mass estimates between studies using different lines requires a good understanding of the behaviour of the CO(2-1)-to-CO(1-0) ratio, $R_{21}$. We compare new, high quality CO(1-0) data from the IRAM 30-m EMPIRE survey to the latest available CO(2-1) maps from HERACLES, PHANGS-ALMA, and a new IRAM 30-m M51 Large Program. This allows us to measure $R_{21}$ across the full star-forming disc of nine nearby, massive, star-forming spiral galaxies at 27" (${\sim} 1{-}2$ kpc) resolution. We find an average $R_{21} = 0.64\pm0.09$ when we take the luminosity-weighted mean of all individual galaxies. This result is consistent with the mean ratio for disc galaxies that we derive from single-pointing measurements in the literature, $R_{\rm 21, lit}~=~0.59^{+0.18}_{-0.09}$. The ratio shows weak radial variations compared to the point-to-point scatter in the data. In six out of nine targets the central enhancement in $R_{21}$ with respect to the galaxy-wide mean is of order $\sim 10{-}20\%$. We estimate an azimuthal scatter of $\sim$20% in $R_{21}$ at fixed galactocentric radius but this measurement is limited by our comparatively coarse resolution of 1.5 kpc. We find mild correlations between $R_{21}$ and CO brightness temperature, IR intensity, 70-to-160$ μ$m ratio, and IR-to-CO ratio. All correlations indicate that $R_{21}$ increases with gas surface density, star formation rate surface density, and the interstellar radiation field.
description: 27 pages, 18 figures, 5 tables; accepted for publication in MNRAS
Inverse design of glass structure with deep graph neural networks
Creators: name: Wang, Qi
name: Zhang, Longfei
Publisher: name: arXiv
Year: 2021
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Directly manipulating the atomic structure to achieve a specific property is a long pursuit in the field of materials. However, hindered by the disordered, non-prototypical glass structure and the complex interplay between structure and property, such inverse design is dauntingly hard for glasses. Here, combining two cutting-edge techniques, graph neural networks and swap Monte Carlo, we develop a data-driven, property-oriented inverse design route that managed to improve the plastic resistance of Cu-Zr metallic glasses in a controllable way. Swap Monte Carlo, as "sampler", effectively explores the glass landscape, and graph neural networks, with high regression accuracy in predicting the plastic resistance, serves as "decider" to guide the search in configuration space. Via an unconventional strengthening mechanism, a geometrically ultra-stable yet energetically meta-stable state is unraveled, contrary to the common belief that the higher the energy, the lower the plastic resistance. This demonstrates a vast configuration space that can be easily overlooked by conventional atomistic simulations. The data-driven techniques, structural search methods and optimization algorithms consolidate to form a toolbox, paving a new way to the design of glassy materials.
Thermodynamics of pairing transition for Odd-A nuclei
Creators: name: Yan, Tao
name: Lin, Yanlong
name: Liu, Lang
Publisher: name: arXiv
Year: 2021
Subjects: subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: The hot nucleus $^{171}$Yb is investigated by the covariant density functional theory with the PC-PK1 effective interaction. The thermodynamic quantities are evaluated with the canonical ensemble theory. The pairing correlations is treated by the shell-model-like approach, in which the particle numbers are conserved strictly and in which the blocking effect is handled exactly. An S-shaped heat capacity versus temperature of $^{171}$Yb appears. It has been studied in terms of the blocking effect, the single-particle levels, the pairing gap, and defined seniority components, and compared to the heat capacity of $^{172}$Yb. The pairing transition from the superfluid state to the normal state can result in the S-shaped heat capacity of $^{172}$Yb where the one-pair-broken and two-pair-broken states dominate, while the single-particle level structure near the Fermi surface is associated with the S-shaped heat capacity of $^{171}$Yb. For odd-A nuclei, although the one-pair-broken and two-pair-broken states still contribute, the pairing gap and the pairing transition is relatively weak. The S-shaped heat capacity could be affected due to the blocking of the single-particle level near the Fermi surface.
Critical Behavior of Sandpile Models with Sticky Grains
Creators: name: Mohanty, P. K.
name: Dhar, Deepak
Publisher: name: arXiv
Year: 2007
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: We revisit the question whether the critical behavior of sandpile models with sticky grains is in the directed percolation universality class. Our earlier theoretical arguments in favor, supported by evidence from numerical simulations [ Phys. Rev. Lett., {\bf 89} (2002) 104303], have been disputed by Bonachela et al. [Phys. Rev. E {\bf 74} (2004) 050102] for sandpiles with no preferred direction. We discuss possible reasons for the discrepancy. Our new results of longer simulations of the one-dimensional undirected model fully support our earlier conclusions.
description: 8 pages, 3 eps figures, accepted in Physica A, elsart.cls attached
Systems of imprimitivity for wreath products
Creators: name: Korhonen, Mikko
name: Li, Cai Heng
Publisher: name: arXiv
Year: 2021
Subjects: subject: Group Theory (math.GR)
subject: Representation Theory (math.RT)
subject: FOS: Mathematics
subject: 20H20, 20C99

description: Let $G$ be an irreducible imprimitive subgroup of $\operatorname{GL}_n(\mathbb{F})$, where $\mathbb{F}$ is a field. Any system of imprimitivity for $G$ can be refined to a nonrefinable system of imprimitivity, and we consider the question of when such a refinement is unique. Examples show that $G$ can have many nonrefinable systems of imprimitivity, and even the number of components is not uniquely determined. We consider the case where $G$ is the wreath product of an irreducible primitive $H \leq \operatorname{GL}_d(\mathbb{F})$ and transitive $K \leq S_k$, where $n = dk$. We show that $G$ has a unique nonrefinable system of imprimitivity, except in the following special case: $d = 1$, $n = k$ is even, $|H| = 2$, and $K$ is a transitive subgroup of $C_2 \wr S_{n/2}$. As a simple application, we prove results about inclusions between wreath product subgroups.
description: to appear in J. Algebra
The r-Process in Supersonic Neutrino-Driven Winds: The Roll of Wind Termination Shock
Creators: name: Kuroda, Takami
name: Wanajo, Shinya
name: Nomoto, Ken'ichi
Publisher: name: arXiv
Year: 2007
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: Recent hydrodynamic studies of core-collapse supernovae imply that the neutrino-heated ejecta from a nascent neutron star develops to supersonic outflows. These supersonic winds are influenced by the reverse shock from the preceding supernova ejecta, forming the wind termination shock. We investigate the effects of the termination shock in neutrino-driven winds and its roll on the r-process. Supersonic outflows are calculated with a semi-analytic neutrino-driven wind model. Subsequent termination-shocked, subsonic outflows are obtained by applying the Rankine-Hugoniot relations. We find a couple of effects that can be relevant for the r-process. First is the sudden slowdown of the temperature decrease by the wind termination. Second is the entropy jump by termination-shock heating, up to several 100NAk. Nucleosynthesis calculations in the obtained winds are performed to examine these effects on the r-process. We find that 1) the slowdown of the temperature decrease plays a decisive roll to determine the r-process abundance curves. This is due to the strong dependences of the nucleosynthetic path on the temperature during the r-process freezeout phase. Our results suggest that only the termination-shocked winds with relatively small shock radii (~500km) are relevant for the bulk of the solar r-process abundances (A~100-180). The heaviest part in the solar r-process curve (A~180-200), however, can be reproduced both in shocked and unshocked winds. These results may help to constrain the mass range of supernova progenitors relevant for the r-process. We find, on the other hand, 2) negligible roles of the entropy jump on the r-process. This is a consequence that the sizable entropy increase takes place only at a large shock radius (~10,000km) where the r-process has already ceased.
description: 11 pages, 7 figures, submitted to ApJ, revised following referee's comments,Accepted for publication in ApJ
title: Food Processing does not Abolish the Allergenicity of the Carrot Allergen Dau c 1 : Influence of pH, Temperature and the Food Matrix
Creators: name: Jacob, Thessa
name: Vogel, Lothar
name: Reuter, Andreas
name: Wangorsch, Andrea
name: Kring, Carolin
name: Mahler, Vera
name: Wöhrl, Birgitta M.
Publisher: name: University of Bayreuth
Year: 2020
Subjects: subject: allergenicity
subject: circular dichroism
subject: mass spectrometry
subject: nano differential scanning fluorimetry
subject: NMR
subject: PR-10 allergen Dau c 1
subject: protein stability
subject: 540
subject: 570

description: Scope: The major carrot allergen Dau c 1 belongs to the group of pathogenesis related class 10 (PR‐10) proteins and is homologous to the birch pollen allergen Bet v 1. In contrast to most other PR‐10 allergens, Dau c 1 can elicit Bet v 1 independent sensitisation. Although Dau c 1 is considered heat labile, allergic reactions against cooked carrots are possible. Methods and Results: The pH and temperature stability as well as the allergenic potential before and after treatment of purified natural (n)Dau c 1 and different recombinant (r) isoallergens was investigated: rDau c 1.0104, rDau c 1.0105, rDau c 1.0201, rDau c 1.0301. All proteins except rDau c 1.0201 were able to refold at physiological pH. pH conditions around the pI (4.4 – 5.5) or the presence of the carrot matrix reduced the refolding capacity. Below the pI, most isoallergens were heat resistant and still able to cause mediator release, indicating allergenicity. Moreover, cooked carrot extract was still able to provoke mediator release due to remaining soluble Dau c 1. Conclusions: Patients allergic to carrots should avoid processed carrot containing foodstuff because heating or pH treatment do not completely abolish the allergenicity of Dau c 1.
On the First Law of Thermodynamics for (2+1) Dimensional Charged BTZ Black Hole and Charged de Sitter Space
Creators: name: Larranaga, Alexis
Publisher: name: arXiv
Year: 2007
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: In this paper we will show that using the cosmological constant as a new thermodynamical state variable, the differential and integral mass formulas of the first law of thermodynamics for asymptotic flat spacetimes can be extended to (2+1) dimensional charged BTZ black holes and charged de Sitter space.
description: 4 pages
WEBINAR: Building the future of bioinformatics with Nextflow: Technical innovation, community engagement, and career development opportunities
Creators: name: Van der Auwera, Geraldine
Publisher: name: Zenodo
Year: 2024

description: This record includes training materials associated with the Australian BioCommons webinar ‘Building the future of bioinformatics with Nextflow: Technical innovation, community engagement, and career development opportunities’. This webinar took place on 19 September 2024.

Event description

Discover how Nextflow is transforming the bioinformatics landscape with cutting-edge pipelining solutions. This webinar will explore the technical advantages of Nextflow, highlight ways to engage with a thriving global community, and provide valuable insights into career growth opportunities within this ecosystem. Whether you're new to the field or an experienced bioinformatician, this webinar will equip you with the knowledge and tools to catch the wave of new developments, drive innovation in your projects and connect with the wider research community.

Speaker: Dr Geraldine Van der Auwera, Lead Developer Advocate, Seqera

Host: Dr Patrick Capon, Australian BioCommons

Training materials

Materials are shared under a Creative Commons Attribution 4.0 International agreement unless otherwise specified and were current at the time of the event.

 

Files and materials included in this record:

Event metadata (PDF): Information about the event including, description, event URL, learning objectives, prerequisites, technical requirements etc.

Index of training materials (PDF): List and description of all materials associated with this event including the name, format, location and a brief description of each file.

20240920_Australian-Biocommons-Webinar_GVdAuwera: A PDF copy of the slides presented during the webinar.

Materials shared elsewhere:

A recording of this webinar is available on the Australian BioCommons YouTube Channel: https://youtu.be/yYoo6ZrVk4w
Absorption features of high redshift galactic winds
Creators: name: Fangano, A. P. M.
name: Ferrara, A.
name: Richter, P.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: The environment of high-redshift galaxies is characterized by both wind-driven outflowing gas and gravitationally infalling streams. To investigate such galaxy-IGM interplay we have generated synthetic optical absorption line spectra piercing the volume surrounding a starbursting analog of a Lyman Break Galaxy selected in a $z \approx 3$ output from a SPH simulation, including a detailed treatment of mechanical feedback from winds. Distributions for several observable species (HI, CIII, CIV, SiII, SiIII, SiIV, OVI, OVII, and OVIII) have been derived by post-processing the simulation outputs. The hot wind material is characterized by the presence of high-ionization species such as OVI, OVII, and OVIII (the latter two observable only in X-ray bands); the colder ($T<10^{5.5}$ K) infalling streams can be instead identified by the combined presence of SiII, SiIII, and CIII optical absorption together with OVI that surrounds the cooler gas clumps. However, both line profile and Pixel Optical Depth analysis of the synthetic spectra show that the intergalactic filament in which the wind-blowing galaxy is embedded produces absorption signatures that closely mimic those of the wind environment. We conclude that may be difficult to clearly identify wind-blowing galaxies and their complex gaseous environment at high redshift in optical QSO absorption-line spectra based solely on the observed ion absorption patterns.
description: 27 pages, 27 figures. Submitted to MNRAS. Full refereed version. Typos fixed, new comparisons with observational data added. Full resolution images are available at http://www.astro.uni-bonn.de/~fangano/winds.html
Performance of CVD diamond detectors for single ion beam-tagging applications in hadrontherapy monitoring
Creators: name: Curtoni, Sébastien
name: Gallin-Martel, Marie-Laure
name: Marcatili, Sara
name: Abbassi, Latifa
name: Bes, Alexandre
name: Bosson, Germain
name: Collot, Johann
name: Crozes, Thierry
name: Dauvergne, Denis
name: De Nolf, Wout
name: Everaere, Pierre
name: Gallin-Martel, Laurent
name: Ghimouz, Abderrahmane
name: Haddad, Ferid
name: Hoarau, Christophe
name: Hostachy, Jean-Yves
name: Koumeir, Charbel
name: Lacoste, Ana
name: Métivier, Vincent
name: Morse, John
name: Motte, Jean-François
name: Muraz, Jean-François
name: Poirier, Freddy
name: Rarbi, Fatah Ellah
name: Rossetto, Olivier
name: Salomé, Muriel
name: Servagent, Noël
name: Testa, Étienne
name: Yamouni, Mahfoud
Publisher: name: arXiv
Year: 2021
Subjects: subject: Instrumentation and Detectors (physics.ins-det)
subject: Medical Physics (physics.med-ph)
subject: FOS: Physical sciences

description: In the context of online ion range verification in particle therapy, the CLaRyS collaboration is developing Prompt-Gamma (PG) detection systems. The originality in the CLaRyS approach is to use a beam-tagging hodoscope in coincidence with the gamma detectors to provide both temporal and spatial information of the incoming ions. The ion range sensitivity of such PG detection systems could be improved by detecting single ions with a 100 ps ($σ$) time resolution, through a quality assurance procedure at low beam intensity at the beginning of the treatment session. This work presents the investigations led to assess the performance of Chemical Vapor Deposition (CVD) diamond detectors to fulfill these requirements. A $^{90}$Sr beta source, 68 MeV protons, 95 MeV/u carbon ions and a synchrotron X-ray pulsed beam were used to measure the time resolution, single ion detection efficiency and proton counting capability of various CVD diamond samples. An offline technique, based on double-sided readout with fast current preamplifiers and used to improve the signal-to-noise ratio, is also presented. The different tests highlighted Time-Of-Flight resolutions ranging from 13 ps ($σ$) to 250 ps ($σ$), depending on the experimental conditions. The single 68 MeV proton detection efficiency of various large area polycrystalline (pCVD) samples was measured to be $>$96% using coincidence measurements with a single-crystal reference detector. Single-crystal CVD (sCVD) diamond proved to be able to count a discrete number of simultaneous protons while it was not achievable with a polycrystalline sample. Considering the results of the present study, two diamond hodoscope demonstrators are under development: one based on sCVD, and one of larger size based on pCVD. They will be used for the purpose of single ion as well as ion bunches detection, either at reduced or clinical beam intensities.
description: 15 pages, 9 figures
Reconfiguration of distribution dystem with distributed generation using Firefly algorithm
Creators: name: Yordthong Lowvachirawat
name: Bongkoj Sookananta
name: Mongkol Pusayatanont
name: Panhathai Buasri
Publisher: name: Faculty of Engineering, Khon Kaen University
Year: 2015
Subjects: Distribution network reconf iguration,Optimization,Firefly algorithm

description: 1, 42, KKU Engineering Journal
Solar activity forecast with a dynamo model
Creators: name: Jiang, Jie
name: Chatterjee, Piyali
name: Choudhuri, Arnab Rai
Publisher: name: arXiv
Year: 2007
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: Although systematic measurements of the solar polar magnetic field exist only from mid 1970s, other proxies can be used to infer the polar field at earlier times. The observational data indicate a strong correlation between the polar field at a sunspot minimum and the strength of the next cycle, although the strength of the cycle is not correlated well with the polar field produced at its end. This suggests that the Babcock Leighton mechanism of poloidal field generation from decaying sunspots involves randomness, whereas the other aspects of the dynamo process must be reasonably ordered and deterministic. Only if the magnetic diffusivity within the convection zone is assumed to be high, we can explain the correlation between the polar field at a minimum and the next cycle. We give several independent arguments that the diffusivity must be of this order. In a dynamo model with diffusivity like this, the poloidal field generated at the mid latitudes is advected toward the poles by the meridional circulation and simultaneously diffuses towards the tachocline, where the toroidal field for the next cycle is produced. To model actual solar cycles with a dynamo model having such high diffusivity, we have to feed the observational data of the poloidal field at the minimum into the theoretical model. We develop a method of doing this in a systematic way. Our model predicts that cycle 24 will be a very weak cycle. Hemispheric asymmetry of solar activity is also calculated with our model and compared with observational data.
description: 17 pages, 18 figures, submitted to MNRAS
Planets around active stars
Creators: name: Setiawan, J.
name: Weise, P.
name: Henning, Th.
name: Hatzes, A. P.
name: Pasquini, L.
name: da Silva, L.
name: Girardi, L.
name: von der Luhe, O.
name: Dollinger, M. P.
name: Weiss, A.
name: Biazzo, K.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We present the results of radial velocity measurements of two samples of active stars. The first sample contains field G and K giants across the Red Giant Branch, whereas the second sample consists of nearby young stars (d < 150 pc) with ages between 10 - 300 Myrs. The radial velocity monitoring program has been carried out with FEROS at 1.52 m ESO telescope (1999 - 2002) and continued since 2003 at 2.2 m MPG/ESO telescope. We observed stellar radial velocity variations which originate either from the stellar activity or the presence of stellar/substellar companions. By means of a bisector technique we are able to distinguish the sources of the radial velocity variation. Among them we found few candidates of planetary companions, both of young stars and G-K giants sample.
description: 4 pages, 5 figures, to appear in the Proceedings of the ESO Workshop "Precision Spectroscopy in Astrophysics", eds. L. Pasquini, M. Romaniello, N.C. Santos, A. Correia
PEPS as unique ground states of local Hamiltonians
Creators: name: Perez-Garcia, David
name: Verstraete, Frank
name: Cirac, J. Ignacio
name: Wolf, Michael M.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Quantum Physics (quant-ph)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: In this paper we consider projected entangled pair states (PEPS) on arbitrary lattices. We construct local parent Hamiltonians for each PEPS and isolate a condition under which the state is the unique ground state of the Hamiltonian. This condition, verified by generic PEPS and examples like the AKLT model, is an injective relation between the boundary and the bulk of any local region. While it implies the existence of an energy gap in the 1D case we will show that in certain cases (e.g., on a 2D hexagonal lattice) the parent Hamiltonian can be gapless with a critical ground state. To show this we invoke a mapping between classical and quantum models and prove that in these cases the injectivity relation between boundary and bulk solely depends on the lattice geometry.
description: 8 pages
Hot planets around cool stars -- two short-period mini-Neptunes transiting the late K-dwarf TOI-1260
Creators: name: Georgieva, I. Y.
name: Persson, C. M.
name: Barragán, O.
name: Nowak, G.
name: Fridlund, M.
name: Locci, D.
name: Palle, E.
name: Luque, R.
name: Carleo, I.
name: Gandolfi, D.
name: Kane, S. R.
name: Korth, J.
name: Stassun, K. G.
name: Livingston, J.
name: Matthews, E. C.
name: Collins, K. A.
name: Howell, S. B.
name: Serrano, L. M.
name: Albrecht, S.
name: Bieryla, A.
name: Brasseur, C. E.
name: Ciardi, D.
name: Cochran, W. D.
name: Colon, K. D.
name: Crossfield, I. J. M.
name: Csizmadia, Sz.
name: Deeg, H. J.
name: Esposito, M.
name: Furlan, E.
name: Gan, T.
name: Goffo, E.
name: Gonzales, E.
name: Grziwa, S.
name: Guenther, E. . W.
name: Guerra, P.
name: Hirano, T.
name: Jenkins, J. M.
name: Jensen, E. L. N.
name: Kabáth, P.
name: Knudstrup, E.
name: Lam, K. W. F.
name: Latham, D. W.
name: Levine, A. M.
name: Matson, R. A.
name: McDermott, S.
name: Osborne, H. L. M.
name: Paegert, M.
name: Quinn, S. N .
name: Redfield, S.
name: Ricker, G. R.
name: Schlieder, J. E.
name: Scott, N. J.
name: Seager, S.
name: Smith, A. M. S.
name: Tenenbaum, P.
name: Twicken, J. D.
name: Vanderspek, R.
name: Van Eylen, V.
name: Winn, J. N.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: FOS: Physical sciences

description: We present the discovery and characterization of two sub-Neptunes in close orbits, as well as a tentative outer planet of a similar size, orbiting TOI-1260 - a low metallicity K6V dwarf star. Photometry from TESS yields radii of $R_{\rm b} = 2.33 \pm 0.10$ $R_{\oplus}$ and $R_{\rm c} = 2.82 \pm 0.15$ $R_{\oplus}$, and periods of 3.13 and 7.49 days for TOI-1260b and TOI-1260c, respectively. We combined the TESS data with a series of ground-based follow-up observations to characterize the planetary system. From HARPS-N high-precision radial velocities we obtain $M_{\rm b} = 8.61_{ - 1.46 } ^ { + 1.36 }$ $M_{\oplus}$ and $M_{\rm c} = 11.84_{ - 3.23 } ^ { + 3.38 }$ $M_{\oplus}$. The star is moderately active with a complex activity pattern, which necessitated the use of Gaussian process regression for both the light curve detrending and the radial velocity modelling, in the latter case guided by suitable activity indicators. We successfully disentangle the stellar-induced signal from the planetary signals, underlining the importance and usefulness of the Gaussian Process approach. We test the system's stability against atmospheric photoevaporation and find that the TOI-1260 planets are classic examples of the structure and composition ambiguity typical for the $2-3$ $R_{\oplus}$ range.
Additional file 5 of Three tyrosine kinase inhibitors cause cardiotoxicity by inducing endoplasmic reticulum stress and inflammation in cardiomyocytes
Creators: name: Wang, Huan
name: Wang, Yiming
name: Li, Jiongyuan
name: He, Ziyi
name: Boswell, Sarah A.
name: Chung, Mirra
name: You, Fuping
name: Han, Sen
Publisher: name: figshare
Year: 2023
Subjects: subject: Biochemistry
subject: Cell Biology
subject: Genetics
subject: FOS: Biological sciences
subject: Pharmacology
subject: Biotechnology
subject: Chemical Sciences not elsewhere classified
subject: Immunology
subject: FOS: Clinical medicine
subject: Biological Sciences not elsewhere classified
subject: Information Systems not elsewhere classified
subject: Cancer
subject: Mental Health

description: Additional file 5. Original western blot gel images, related to Fig. 4.
Amtliche Mitteilungen der Technischen Universität Dortmund Nr. 5/2022
Creators: name: (:Unkn) Unknown
Publisher: name: Technische Universität Dortmund
Year: 2022
Subjects: subject: 080

description: Geschäftsordnung des Senats der Technischen Universität Dortmund vom 17. Februar 2022
description: Amtliche Mitteilungen der Technischen Universität Dortmund;2022;5
Probing time reversal symmetry breaking topological superconductivity in twisted double layer copper oxides with polar Kerr effect
Creators: name: Can, Oguzhan
name: Zhang, Xiao-Xiao
name: Kallin, Catherine
name: Franz, Marcel
Publisher: name: arXiv
Year: 2021
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: Recent theoretical work predicted emergence of chiral topological superconducting phase with spontaneously broken time reversal symmetry in a twisted bilayer composed of two high-$T_c$ cuprate monolayers, such as Bi$_2$Sr$_2$CaCu$_2$O$_{8+δ}$. Here we identify large intrinsic Hall response that can be probed through the polar Kerr effect measurement as a convenient signature of the $\mathcal{T}$-broken phase. Our modelling predicts the Kerr angle $θ_K$ to be in the range of 10-100 $μ$rad, which is a factor of $10^3-10^4$ times larger than what is expected for the leading chiral supercondutor candidate Sr$_2$RuO$_4$. In addition we show that the optical Hall conductivity $σ_H(ω)$ can be used to distinguish between the topological $d_{x^2-y^2}\pm id_{xy}$ phase and the $d_{x^2-y^2}\pm is$ phase which is also expected to be present in the phase diagram but is topologically trivial.
description: 10 pages, 8 figures
Scalar lumps with a horizon
Creators: name: Lavrelashvili, George
name: Lehners, Jean-Luc
name: Schneider, Marc
Publisher: name: arXiv
Year: 2021
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We study a self-interacting scalar field theory coupled to gravity and are interested in spherically symmetric solutions with a regular origin surrounded by a horizon. For a scalar potential containing a barrier, and using the most general spherically symmetric ansatz, we show that in addition to the known static, oscillating solutions discussed earlier in the literature there exist new classes of solutions which appear in the strong field case. For these solutions the spatial sphere shrinks either beyond the horizon, implying a collapsing universe outside of the cosmological horizon, or it shrinks already inside of the horizon, implying the existence of a black hole surrounding the scalar lump in all directions. Crucial for the existence of all such solutions is the presence of a scalar field potential with a barrier that satisfies the swampland conjectures.
description: 21 pages, 10 figures, v2: replaced with published version
Additional file 2 of Transcriptome analysis of the production enhancement mechanism of antimicrobial lipopeptides of Streptomyces bikiniensis HD-087 by co-culture with Magnaporthe oryzae Guy11
Creators: name: Liu, Wei
name: Wang, Jiawen
name: Zhang, Huaqian
name: Qi, Xiaohua
name: Du, Chunmei
Publisher: name: figshare
Year: 2022
Subjects: subject: Microbiology
subject: FOS: Biological sciences
subject: Cell Biology
subject: Genetics
subject: Molecular Biology
subject: Physiology
subject: Science Policy
subject: Biological Sciences not elsewhere classified
subject: Developmental Biology
subject: Hematology

description: Additional file 2: Table S2. Effect of induced culture on expressions of genes involved in lipopeptide synthesis with the log2FC values of genes (FC = fold change)
Fertilisation and early embryonic development of immature and rescue in vitro-matured sibling oocytes
Creators: name: Avci, Berrin
name: Kasapoglu, Isil
name: Cakir, Cihan
name: Ozbay, Aysun
name: Ata, Baris
name: Uncu, Gurkan
Publisher: name: Taylor & Francis
Year: 2020
Subjects: subject: Biophysics
subject: Cell Biology
subject: Genetics
subject: FOS: Biological sciences
subject: Physiology
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: Immunology
subject: FOS: Clinical medicine
subject: 69999 Biological Sciences not elsewhere classified
subject: Developmental Biology
subject: Science Policy

description: The objective of this study was to assess the effect of rescue in vitro maturation and immediate intracytoplasmic sperm injection (ICSI) application on fertilisation success and early embryonic development of metaphase I (MI) oocytes. This was a retrospective cohort study including 2425 sibling oocytes in 259 ICSI cycles. ICSI was performed on 104 GV (germinal vesicle) oocytes which had reached the metaphase II (MII) stage (Group 1) and 231 MI oocytes which had reached the MII stage (Group 2) following IVM (in vitro maturation). Immediate ICSI was applied following oocyte aspiration on 292 MI stage (Group 3) and 1798 MII stage oocytes (Group 4). Normal fertilisation rates in Groups 1, 2, 3 and 4 were 51.9%, 39%, 30.1% and 59.5%, respectively. The rates of blastocyst development per oocyte and per zygote were calculated as 3.8%, 3.0%, 6.8%, 14.1% and 7.4%, 7.7%, 22.7%, 23.6% for Groups 1, 2, 3 and 4, respectively. The blastocyst development rate was significantly higher in the MI-ICSI group compared with other immature oocytes. Even though performing ICSI on the oocytes at the MI stage on the day of oocyte aspiration resulted in lower fertilisation rates, it was associated with significantly higher rates of blastocyst development.