cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
The kinetic temperature of a molecular cloud at redshift 0.7: Ammonia in the gravitational lens B0218+357
Creators: name: Henkel, C.
name: Jethava, N.
name: Kraus, A.
name: Menten, K. M.
name: Carilli, C. L.
name: Grasshoff, M.
name: Lubowich, D.
name: Reid, M. J.
name: .
Publisher: name: arXiv
Year: 2005
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: Using the Effelsberg 100-m telescope, absorption in the (J,K) = (1,1), (2,2) and (3,3) inversion lines of ammonia (NH_3) was detected at a redshift of z = 0.6847 toward the gravitational lens system B0218+357. The lambda ~ 2cm absorption peaks at 0.5-1.0 % of the continuum level and appears to cover a smaller fraction of the radio continuum background than lines at millimeter wavelengths. Measured intensities are consistent with a rotation temperature of ~35K, corresponding to a kinetic temperature of ~55K. The column density toward the core of image A then becomes N(NH_3) ~ 1 * 10^(14)cm^(-2) and fractional abundance and gas density are of order X(NH_3)~10^(-8) and n(H_2)~5 * 10^(3)cm^(-3), respectively. Upper limits are reported for the (2,1) and (4,4) lines of NH_3 and for transitions of the SO, DCN, OCS, SiO, C_3N, H_2CO, SiC_2, HC_3N, HC_5N, and CH_3OH molecules. These limits and the kinetic temperature indicate that the absorption lines are not arising from a cold dark cloud but from a warm, diffuse, predominantly molecular medium. The physical parameters of the absorbing molecular complex, seen at a projected distance of ~2 kpc to the center of the lensing galaxy, are quite peculiar when compared with the properties of clouds in the Galaxy or in nearby extragalactic systems.
description: 7 pages, 2 figures accepted by A&A
Comparison of Personal BTEX Exposure and Pregnancy Outcomes among Pregnant Women Residing in and Near Petrochemical Industrial Area
Creators: name: Nantaporn Phatrabuddha
name: Nipa Maharatchpong
name: Keadtongtawee, Santi
name: Sastri Saowakhontha
Publisher: name: Thai Society of Higher Education Institutes on Environment
Year: 2013
Subjects: benzene,toluene,ethylbenzene,xylene,pregnancy outcomes,pregnant women

description: 2, 6, EnvironmentAsia
Dynamical evolution and leading order gravitational wave emission of Riemann-S binaries
Creators: name: Hansen, Dörte
Publisher: name: arXiv
Year: 2005
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: An approximate strategy for studying the evolution of binary systems of extended objects is introduced. The stars are assumed to be polytropic ellipsoids. The surfaces of constant density maintain their ellipsoidal shape during the time evolution. The equations of hydrodynamics then reduce to a system of ordinary differential equations for the internal velocities, the principal axes of the stars and the orbital parameters. The equations of motion are given within Lagrangian and Hamiltonian formalism. The special case when both stars are axially symmetric fluid configurations is considered. Leading order gravitational radiation reaction is incorporated, where the quasi-static approximation is applied to the internal degrees of freedom of the stars. The influence of the stellar parameters, in particular the influence of the polytropic index $n$, on the leading order gravitational waveforms is studied.
description: 31 pages, 7 figures, typos corrected
Contact angle measurements on superhydrophobic Carbon Nanotube Forests : effect of fluid pressure
Creators: name: Journet, Catherine
name: Moulinet, Sebastien
name: Ybert, Christophe
name: Purcell, Stephen T.
name: Bocquet, Lyderic
Publisher: name: arXiv
Year: 2005
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: FOS: Physical sciences

description: In this paper the effect of pressure on the contact angle of a water drop on superhydrophobic Carbon Nanotube (CNT) forests is studied. Superhydrophobic CNT forests are obtained from a new and simple functionalization strategy, based on the gold-thiol affinity. Using a specifically devised experimental setup, we then show that these surfaces are able to withstand high excess pressures (larger than 10 kPa) without transiting toward a roughness-invaded state, therefore preserving their low adhesion properties. Together with the relatively low technical cost of the process, this robustness versus pressure makes such surfaces very appealing for practical integration into microfluidic systems.
description: accepted for publication in Europhysics Letters
Robust Mixing for Ab-Initio Quantum Mechanical Calculations
Creators: name: Marks, L. D.
name: Luke, D. R.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: We study the general problem of mixing for ab-initio quantum-mechanical problems. Guided by general mathematical principles and the underlying physics, we propose a multisecant form of Broydens second method for solving the self-consistent field equations of Kohn-Sham density functional theory. The algorithm is robust, requires relatively little finetuning and appears to outperform the current state of the art, converging for cases that defeat many other methods. We compare our technique to the conventional methods for problems ranging from simple to nearly pathological.
description: 32 Pages, 4 figures
Experimental evidence on the dissipationless transport of chiral edge state of the high-field Chern insulator in MnBi2Te4 nanodevices
Creators: name: Ying, Zhe
name: Zhang, Shuai
name: Chen, Bo
name: Jia, Bin
name: Fei, Fucong
name: Zhang, Minhao
name: Zhang, Haijun
name: Wang, Xuefeng
name: Song, Fengqi
Publisher: name: arXiv
Year: 2020
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We demonstrate the dissipationless transport of the chiral edge state (CES) in the nanodevices of quantum anomalous Hall insulator candidate MnBi2Te4. The device presents a near-zero longitudinal resistance together with a quantized Hall plateau in excess of 0.97 h/e2 over a range of temperatures from very low up to the Neel temperature of 22 K. Each of four-probe nonlocal measurements gives near-zero resistance and two-probe measurements exhibit a plateau of +1 h/e2, while the results of three-probe nonlocal measurements depend on the magnetic field. This indicates non-dissipation as well as the chirality of the edge state. The CES shows three regimes of temperature dependence, i.e., well-preserved dissipationless transport below 6 K, variable range hopping while increasing the temperature and thermal activation at higher than 22 K. Even at the lowest temperature, a current of over 1.4 μA breaks the dissipationless transport. These form a complete set of evidences of the Chern insulator state in the MnBi2Te4 systems.
description: 4 figures
The dynamical U(n) quantum group
Creators: name: Koelink, Erik
name: van Norden, Yvette
Publisher: name: arXiv
Year: 2005
Subjects: subject: Quantum Algebra (math.QA)
subject: FOS: Mathematics

description: We study the dynamical analogue of the matrix algebra M(n), constructed from a dynamical R-matrix given by Etingof and Varchenko. A left and a right corepresentation of this algebra, which can be seen as analogues of the exterior algebra representation, are defined and this defines dynamical quantum minor determinants as the matrix elements of these corepresentations. These elements are studied in more detail, especially the action of the comultiplication and Laplace expansions. Using the Laplace expansions we can prove that the dynamical quantum determinant is almost central, and adjoining an inverse the antipode can be defined. This results in the dynamical GL(n) quantum group associated to the dynamical R-matrix. We study a *-structure leading to the dynamical U(n) quantum group, and we obtain results for the canonical pairing arising from the R-matrix.
description: 24 pages
Extraction of the Neutron Magnetic Form Factor from Quasi-Elastic 3He(pol)(e(pol),e') at Q^2 = 0.1 - 0.6 (GeV/c)^2
Creators: name: 001 Collaboration
Publisher: name: arXiv
Year: 2006
Subjects: subject: Nuclear Experiment (nucl-ex)
subject: FOS: Physical sciences

description: We have measured the spin-dependent transverse asymmetry, A_T', in quasi-elastic inclusive electron scattering from polarized 3He with high precision at Q^2 = 0.1 to 0.6 (GeV/c)^2. The neutron magnetic form factor, GMn, was extracted at Q^2 = 0.1 and 0.2 (GeV/c)^2 using a non-relativistic Faddeev calculation that includes both final-state interactions (FSI) and meson-exchange currents (MEC). In addition, GMn was extracted at Q^2 = 0.3 to 0.6 (GeV/c)^2 using a Plane Wave Impulse Approximation calculation. The accuracy of the modeling of FSI and MEC effects was tested and confirmed with a precision measurement of the spin-dependent asymmetry in the breakup threshold region of the 3He(pol)(e(pol),e') reaction. The total relative uncertainty of the extracted GMn data is approximately 3%. Close agreement was found with other recent high-precision GMn data in this Q^2 range.
description: Archival paper, 17 pages, 10 figures, 5 tables, submitted to Physical Review C. v2: shortened considerably, updated comparison to theory
Un legislatore corinzio a Tebe: Filolao Bacchiade (Aristot. Pol. 1274 a 31 - b 5)
Creators: name: Bestonso, Cinzia
Publisher: name: Università degli Studi di Torino - Dipartimento di Studi Storici
Year: 2011

description: The reasearch offers an allegoric interpretation of the chapter 12 of Aristotle’s Politics Book II (1274 a 31 – 1274 b 5) dealing with Philolaus Bacchiad’s legislative activity in Thebes. The analysis considers two elements of the text, that is the pederasty and the incest, because they are useful both to give an historical interpretation of the tale itself, and to clarify what historical period would have corrisponded better to the situation of crisis that the Bacchiad lawgiver was requested to normalize at Thebes.

La ricerca propone un’interpretazione allegorica del passo della Politica di Aristotele (1274 a 31 – 1274 b 5) relativo alla nomothesia del corinzio Filolao a Tebe, utilizzando come chiavi di lettura due elementi del testo - la pederastia e l’incesto - che, seppur apparentemente anomali, sostanziano invece di storicità il racconto e risultano altresì utili a chiarire quale periodo storico corrisponde meglio alla situazione di crisi che il Bacchiade fu chiamato a normalizzare nella polis beotica.
description: HISTORIKA Studi di storia greca e romana, Vol 1, N° 1 (2011)
Text: Story of the man who bought a clay pot
Creators: name: Criollo Chapal, Guillermo Sergio
name: Dabkowski, Maksymilian
name: Aguinda, Shen
Publisher: name: California Language Archive, University of California, Berkeley
Year: 2021
Subjects: subject: con

description: A man lied that a clay pot could cook by itself, and a father bought the pot, but it was all a lie. Another scene: A person brought a cow painted red with annatto and claimed that the cow shat money. A farmer bought the cow and took it home, but it only shat feces, not money, because it was the farmer's old cow that had been stolen from him.
La nautike dynamis in Senofonte dall’Athenaion Politeia ai Poroi
Creators: name: Sordi, Marta
Publisher: name: Università degli Studi di Torino - Dipartimento di Studi Storici
Year: 2011

description: This paper aims at examining the value of the nautike dynamis in Xenophon’s works, from Athenaion Politeia to Poroi.
As already demonstrated by previous essays between 2002 and 2005, Ap was written by a young Xenophon after the events of the 411 B.C.: he positively esteems the advantages of the Athenian thalassocracy, emphasizes the relationship between sea-power and democracy and considers a government founded on the oplitai as impossible. The only limit of Athens seems to be its geographical position, as it was not an island.
Xenophon’s interest in the Athenian sea-power seems to fade in the years of the Agesilaos’ campaigns and during his stay in Sicily and his exile in Scillus. However, it returns to be significant again after Leuktra in the years of the incoming Theban egemony, when Xenophon came back from his exile. He wrote in this period the “thucydidean” part of his Hellenika and the Prokles’s speech (Hell. VII, 1, 1-14), and he introduced in the Poroi the topic of Athens as a “pacific” thalassocracy.

L’articolo considera il valore di nautike dynamis in Senofonte, dall’Athenaion politeia ai Poroi.
Come già dimostrato in precedenti saggi tra il 2002 e il 2005, Ap fu scritta dal giovane Senofonte  dopo i fatti del 411 a.C.: l’opera valuta positivamente i vantaggi della talassocrazia ateniese, coglie il rapporto fra democrazia e potenza navale e considera impossibile un governo fondato sugli opliti. Il solo limite di Atene sembra la sua posizione geografica e la sua condizione non “isolana”.
L’interesse di Senofonte per la potenza navale ateniese sembra diminuire negli anni delle campagne di Agesilao, del soggiorno in Sicilia e dell’esilio a Scillunte. Esso ritorna però significativo dopo Leuttra, all’epoca dell’avvento dell’egemonia tebana, quando Senofonte rientrò dall’esilio. In questo periodo egli scrisse la parte “tucididea” delle Elleniche e il discorso di Procle di Fliunte (Hell. VII, 1, 1-14) e riprese, nei Poroi, il tema di Atene come potenza talassocratica “pacifica”.
description: HISTORIKA Studi di storia greca e romana, Vol 1, N° 1 (2011)
Rotation, Embedding and Topology for the Szekeres Geometry
Creators: name: Hellaby, Charles
name: Buckley, Robert G.
Publisher: name: arXiv
Year: 2020
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: Recent work on the Szekeres inhomogeneous cosmological models uncovered a surprising rotation effect. Hellaby showed that the angular $(θ, ϕ)$ coordinates do not have a constant orientation, while Buckley and Schlegel provided explicit expressions for the rate of rotation from shell to shell, as well as the rate of tilt when the 3-space is embedded in a flat 4-d Euclidean space. We here investigate some properties of this embedding, for the quasi-spherical recollapsing case, and use it to show that the two sets of results are in complete agreement. We also show how to construct Szekeres models that are closed in the 'radial' direction, and hence have a 'natural' embedded torus topology. Several explicit models illustrate the embedding as well as the shell rotation and tilt effects.
description: 28 pages with 8 figures containing 2 diagrams and 17 plots. Version 2 corrects some errors and replaces 3 plots
Legioni perdute, leggende ritrovate lungo le strade dell'impero e oltre.
Creators: name: Roda, Sergio
Publisher: name: Università degli Studi di Torino - Dipartimento di Studi Storici
Year: 2012

description: The vanishing of the Roman legions commanded by Marcus Licinius Crassus at Carrae, during a military expedition against the Parthian empire, brought to a large amount of historical conjectures and a huge quantity of fictional works, both in literature and in movies. The myth of Rome keeps all its appeal in the west, but its strength has also an impact also in the eastern regions of the world, as the research about the end of Crassus’ legions in China proves. The aim of this paper is to offer a wide outlook of the relationships between romanity and alterity or better between two empires that from both a temporal and a geographical perspective wouldn’t seem comparable.

La scomparsa a Carrae, nella spedizione contro i Parti, della legione agli ordini di Marco Licinio Crasso ha generato speculazioni storiche così come una sterminata letteratura romanzesca nel corso degli anni, a cui si sono aggiunte, più di recente, riletture cinematografiche e televisive. Se è vero che il mito di Roma, anche nella sconfitta, continua ad affascinare la fantasia occidentale, altrettanto vero è l’impatto che esso ha avuto nell’immaginario orientale. La rilettura delle sorti dei legionari di Crasso sopravvissuti e forse giunti fino in Cina ne è un’esemplificazione. Il contributo mira a fornire una panoramica, che spazia da testi divulgativi a discorsi politici fino a studi di genetica, del confronto tra romanità e estrema alterità o meglio tra due imperi che nel tempo e nello spazio sembrerebbero incomparabili.
description: HISTORIKA Studi di storia greca e romana, Vol 1, N° 1 (2011)
Gradient flow approach to geometric convergence analysis of preconditioned eigensolvers
Creators: name: Knyazev, Andrew V.
name: Neymeyr, Klaus
Publisher: name: arXiv
Year: 2008
Subjects: subject: Numerical Analysis (math.NA)
subject: Optimization and Control (math.OC)
subject: FOS: Mathematics
subject: 49M37; 65F15; 65K10; 65N25

description: Preconditioned eigenvalue solvers (eigensolvers) are gaining popularity, but their convergence theory remains sparse and complex. We consider the simplest preconditioned eigensolver--the gradient iterative method with a fixed step size--for symmetric generalized eigenvalue problems, where we use the gradient of the Rayleigh quotient as an optimization direction. A sharp convergence rate bound for this method has been obtained in 2001--2003. It still remains the only known such bound for any of the methods in this class. While the bound is short and simple, its proof is not. We extend the bound to Hermitian matrices in the complex space and present a new self-contained and significantly shorter proof using novel geometric ideas.
description: 8 pages, 2 figures. Accepted to SIAM J. Matrix Anal. (SIMAX)
Thermodynamic Constraints on the Dark Sector
Creators: name: da Silva, W. J. C.
name: Gonzalez, J. E.
name: Silva, R.
name: Alcaniz, J. S.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: In this paper, we present a unified scheme based on the fluid description of the dark sector of the universe. The scheme captures models with interaction between dark energy and dark matter, being the core of generalization the time-varying equation-of-state parameter $ω(a)$ and the time-dependent interactions through the interaction function $ε(a)$, where $a$ is the scale factor. Furthermore, we propose thermodynamics constraints on this generalized class of models using the laws of thermodynamics which are combined with observational data. In order to test the observational viability of the unified model, we perform a Bayesian analysis using cosmic chronometers, type Ia supernovae, cosmic microwave background, and angular baryon acoustic oscillation measurements.
description: 9 pages, 4 figures, 2 tables. Version accepted for publication in EPJP
Order, Disorder and Confinement
Creators: name: D'Elia, M.
name: Di Giacomo, A.
name: Pica, C.
Publisher: name: arXiv
Year: 2005
Subjects: subject: High Energy Physics - Lattice (hep-lat)
subject: FOS: Physical sciences

description: Studying the order of the chiral transition for $N_f=2$ is of fundamental importance to understand the mechanism of color confinement. We present results of a numerical investigation on the order of the transition by use of a novel strategy in finite size scaling analysis. The specific heat and a number of susceptibilities are compared with the possible critical behaviours. A second order transition in the O(4) and O(2) universality classes are excluded. Substantial evidence emerges for a first order transition. Results are in agreement with those found by studying the scaling properties of a disorder parameter related to the dual superconductivity mechanism of color confinement.
description: 7 pages, 11 figures. Talk given at the International Workshop on Quantum Chromodynamics: QCD@Work 2005, Conversano, Italy, 16-20 June 2005
Scattering of magnetic edge states
Creators: name: Buchendorfer, C.
name: Graf, G. M.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences
subject: 81V99 (Primary) 81U20, 81S30, 81Q20 (Secondary)

description: We consider a charged particle following the boundary of a two-dimensional domain because a homogeneous magnetic field is applied. We develop the basic scattering theory for the corresponding quantum mechanical edge states. The scattering phase attains a limit for large magnetic fields which we interpret in terms of classical trajectories.
description: 34 pages, 2 figures
Xenophon and the Tradition on the Strategoi in Fourth-Century Athens
Creators: name: Bianco, Elisabetta
Publisher: name: Università degli Studi di Torino - Dipartimento di Studi Storici
Year: 2012

description: After studying  individual careers and traditions concerning the  most important Athenian strategoi of the Fourth century B.C. (in particular Chabrias, Iphicrates, Timotheus and Chares), the aim of this paper is to offer now an overview of Xenophon’s interpretations. The attitude of the historian, in fact, is very interesting and seems to be included in a general will to minimize the new Athenian hegemony and to ascribe its successes to the Spartan crisis, omitting or only mentioning some of the main political and military events of the Athenian history in these years and often obliterating its prominent personalities. However, even though Xenophon shows little interest in Conon, Callistratus or Chabrias (whose enterprises are systematically neglected), we can detect a more positive attention to Timotheus and even to Chares (usually so disparaged), till the amazing involvement in Iphicrates’ personality, about whom Xenophontic praises are famous. In this paper, therefore, we will analyze if and to what extent Xenophon contributes to a correct reconstruction of the activities of these strategoi, by comparison with other surviving traditions and trying to understand his different attitudes.

Dopo lo studio delle singole carriere e tradizioni riguardanti i più grandi strateghi ateniesi del IV secolo a.C. (in particolare Cabria, Ificrate, Timoteo e Carete), si intende ora fornire uno sguardo di insieme sulle interpretazioni offerte da Senofonte. L’atteggiamento dello storico nei loro confronti è infatti molto interessante e sembra rientrare nel quadro di una generica volontà di minimizzare la nuova egemonia ateniese e di attribuirne i successi alla crisi spartana, omettendo o solo accennando ad alcuni dei principali fatti politici e militari della storia ateniese di questi anni e obliterandone spesso i suoi principali esponenti. Eppure, accanto allo scarso interesse mostrato da Senofonte nei confronti di Conone, Callistrato o Cabria (le cui imprese sono sistematicamente sminuite), si assiste a un più positivo atteggiamento riguardo a Timoteo e perfino a Carete (solitamente invece disprezzato), fino ad arrivare ad uno stupefacente coinvolgimento nel personaggio di Ificrate, su cui sono celebri le lodi dello storico. Si cercherà dunque di analizzare se e quanto Senofonte abbia contribuito a ricostruire correttamente il quadro delle attività di questi strateghi, confrontandolo con le altre tradizioni e cercando i possibili motivi delle differenze nel suo atteggiamento.
description: HISTORIKA Studi di storia greca e romana, Vol 1, N° 1 (2011)
Numerical aspects of shot noise representation of infinitely divisible laws and related processes
Creators: name: Yuan, Sida
name: Kawai, Reiichiro
Publisher: name: arXiv
Year: 2021
Subjects: subject: Probability (math.PR)
subject: Numerical Analysis (math.NA)
subject: FOS: Mathematics
subject: 60E07, 60G55, 60G51, 65C05, 65C30

description: The ever-growing appearance of infinitely divisible laws and related processes in various areas, such as physics, mathematical biology, finance and economics, has fuelled an increasing demand for numerical methods of sampling and sample path generation. In this survey, we review shot noise representation with a view towards sampling infinitely divisible laws and generating sample paths of related processes. In contrast to many conventional methods, the shot noise approach remains practical even in the multidimensional setting. We provide a brief introduction to shot noise representations of infinitely divisible laws and related processes, and discuss the truncation of such series representations towards the simulation of infinitely divisible random vectors, Lévy processes, infinitely divisible processes and fields and Lévy-driven stochastic differential equations. Essential notions and results towards practical implementation are outlined, and summaries of simulation recipes are provided throughout along with numerical illustrations. Some future research directions are highlighted.
description: 37 pages, 8 figures
Der Dialog zwischen dem Ökumenischen Patriarchat von Konstantinopel und der EKD
Creators: name: Bienert, Wolfgang A.
Publisher: name: Ökumenische Rundschau
Year: 2025

description: Ökumenische Rundschau, Bd. 36 Nr. 1 (1987): Ökumenische Rundschau, Band 36, Heft 1
Generation of coherent terahertz pulses in Ruby at room temperature
Creators: name: Kuznetsova, Elena
name: Rostovtsev, Yuri
name: Kalugin, Nikolai G.
name: Kolesov, Roman
name: Kocharovskaya, Olga
name: Scully, Marlan O.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We have shown that a coherently driven solid state medium can potentially produce strong controllable short pulses of THz radiation. The high efficiency of the technique is based on excitation of maximal THz coherence by applying resonant optical pulses to the medium. The excited coherence in the medium is connected to macroscopic polarization coupled to THz radiation. We have performed detailed simulations by solving the coupled density matrix and Maxwell equations. By using a simple $V$-type energy scheme for ruby, we have demonstrated that the energy of generated THz pulses ranges from hundreds of pico-Joules to nano-Joules at room temperature and micro-Joules at liquid helium temperature, with pulse durations from picoseconds to tens of nanoseconds. We have also suggested a coherent ruby source that lases on two optical wavelengths and simultaneously generates THz radiation. We discussed also possibilities of extension of the technique to different solid-state materials.
Formation of molecules from a Cs Bose-Einstein condensate
Creators: name: Yurovsky, V. A.
name: Ben-Reuven, A.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Other Condensed Matter (cond-mat.other)
subject: FOS: Physical sciences

description: Conversion of an expanding Bose-Einstein condensate of Cs atoms to a molecular one with an efficiency of more than 30% was observed recently in experiments by M. Mark et al., Europhys. Lett. 69, 706 (2005). The theory presented here describes the experimental results. Values of resonance strength of 8 mG and rate coefficients for atom-molecule deactivation of $1\times 10^{-11}$ cm$^{3}/$s and molecule-molecule one of $1.5\times 10^{-9}$ cm$^{3}/$s are estimated by a fit of the theoretical results to the experimental data. Near the resonance, where the highest conversion efficiency was observed, the results demonstrate strong sensitivity to the magnetic field ripple and inhomogeneity. A conversion efficiency of about 60% is predicted by non-mean-field calculations for the densities and sweep rates lower than the ones used in the experiments.
description: 9 pages, 10 figures
Text: Story of the competitive dear
Creators: name: Criollo Chapal, Guillermo Sergio
name: Dabkowski, Maksymilian
name: Aguinda, Shen
Publisher: name: California Language Archive, University of California, Berkeley
Year: 2021
Subjects: subject: con

description: A deer met a snail and challenged him to run. The snail accepted the challenge and won. Later, the deer met a turtle and the same thing happened.
Search for U(1)$_{L_μ-L_τ}$ charged Dark Matter with neutrino telescope
Creators: name: Asai, Kento
name: Okawa, Shohei
name: Tsumura, Koji
Publisher: name: arXiv
Year: 2020
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: We study a simple Dirac fermion dark matter model in U(1)$_{L_μ-L_τ}$ theory. The new light gauge boson $X$ plays important roles in both dark matter physics and the explanation for the muon $g-2$ anomaly. The observed dark matter relic density is realized by a large U(1)$_{L_μ-L_τ}$ charge without introducing a resonance effect of the $X$ boson. As a by-product of the model, characteristic neutrino signatures from sub-GeV dark matter $ψ$ are predicted depending on the mass spectrum. We formulate the analysis of $ψ\barψ\to ν\barν$, and of $ψ\barψ\to XX$ followed by $X\toν\barν$, in a model independent way. The energy spectrum of neutrinos in the former process is monochromatic while in the latter process is bowl-shape. We also evaluate sensitivity at Super-Kamiokande and future Hyper-Kamiokande detectors. The analysis is finally applied to the U(1)$_{L_μ-L_τ}$ dark matter model.
description: 32 pages, 6 figures; v2: added references and comments, corrected the neutrino spectrum from secluded annihilation and corresponding plots, conclusion unchanged, version to be published in JHEP
Design and evaluation of a high performance multi-priority multicast ATM switch
Creators: name: Lam, Patrick
Publisher: name: University of British Columbia
Year: 2009

description: Asynchronous Transfer Mode (ATM) is believed to be the standard protocol for the extremely demanding high speed networking field. The switching technologies employed in A TM cell switches are extensively researched and studied in recent years. However, most developed switches nowadays are lack of either performance or costefficiency. Furthermore, most switching researches published are based on uniform incoming cell traffic pattern, which is very different from real time traffics. Real time traffics are not only bursty, they are also involved with multiple classes of prioritized traffics, as well as multicast traffic. In this thesis, a high performance and cost-effective A TM switch architecture is introduced. The switching architecture is based on two existing technologies, namely Skew Round Robin scheduling and Virtual Output Queuing schemes. These two schemes are proved to be simple and high performers under uniform traffic pattern [16]. Simulation results show that with a little modification made to these schemes, a switch can perform extremely well under many kinds of real time traffic patterns, including multi-priority and multicast. In addition, with the proposed switching architecture, it's shown that cell loss ratio can be arbitrarily reduced — with finite buffer size and bounded delay - even under bursty traffic pattern.
A note on dilaton gravity with non-smooth potentials
Creators: name: Boehmer, Christian G.
name: Bronowski, Piotr
Publisher: name: arXiv
Year: 2005
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: Recent interest in brane world models motivates the investigation of generic first order dilaton gravity actions, with potentials having some non-smoothness. We consider two different types of δ-like contributions in the action and analyse their effects on the solutions. Furthermore a second source of non-smoothness arises due to the remaining ambiguities in the solutions in the separated smooth patches, after fixing all other constants by matching and asymptotic conditions. If moreover staticity is assumed, we explicitly construct exact solutions. With the methods described, for example models with point like sources or brane world models (where the second source of non-smoothness becomes crucial), can now be treated as non-smooth dilaton gravity theories.
description: 10 pages, 1 table; two new references, some typos corrected, Dedicated to Wolfgang Kummer at the occasion of his Emeritierung
Three-dimensional Hydrodynamics Simulations of Precollapse Shell Burning in the Si- and O-rich Layers
Creators: name: Yoshida, Takashi
name: Takiwaki, Tomoya
name: Kotake, Kei
name: Takahashi, Koh
name: Nakamura, Ko
name: Umeda, Hideyuki
Publisher: name: arXiv
Year: 2020
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: We present 3D hydrodynamics simulations of shell burning in two progenitors with zero-age main-sequence masses of 22 and 27 $M_{\odot}$ for $\sim$65 and 200 s up to the onset of gravitational collapse, respectively. The 22 and 27 $M_{\odot}$ stars are selected from a suite of 1D progenitors. The former and the latter have an extended Si- and O-rich layer with a width of $\sim$10$^9$ cm and $\sim$5$\times 10^9$ cm, respectively. Our 3D results show that turbulent mixing occurs in both of the progenitors with the angle-averaged turbulent Mach number exceeding $\sim$0.1 at the maximum. We observe that an episodic burning of O and Ne, which takes place underneath the convection bases, enhances the turbulent mixing in the 22 and 27 $M_\odot$ models, respectively. The distribution of nucleosynthetic yields is significantly different from that in 1D simulations, namely, in 3D more homogeneous and inhomogeneous in the radial and angular direction, respectively. By performing a spectrum analysis, we investigate the growth of turbulence and its role of material mixing in the convective layers. We also present a scalar spherical harmonics mode analysis of the turbulent Mach number. This analytical formula would be helpful for supernova modelers to implement the precollapse perturbations in core-collapse supernova simulations. Based on the results, we discuss implications for the possible onset of the perturbation-aided neutrino-driven supernova explosion.
description: 23 pages, 26 figures, 5 tables. Accepted for publication in Astrophys. J
Multiphase AGN winds from X-ray irradiated disk atmospheres
Creators: name: Waters, Tim
name: Proga, Daniel
name: Dannen, Randall
Publisher: name: arXiv
Year: 2021
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: The mechanism of thermal driving for launching mass outflows is interconnected with classical thermal instability (TI). In a recent paper, we demonstrated that as a result of this interconnectedness, radial wind solutions of X-ray heated flows are prone to becoming clumpy. In this paper, we first show that the Bernoulli function determines whether or not the entropy mode can grow due to TI in dynamical flows. Based on this finding, we identify a critical `unbound' radius beyond which TI should accompany thermal driving. Our numerical disk wind simulations support this result and reveal that clumpiness is a consequence of buoyancy disrupting the stratified structure of steady state solutions. Namely, instead of a smooth transition layer separating the highly ionized disk wind from the cold phase atmosphere below, hot bubbles formed from TI rise up and fragment the atmosphere. These bubbles first appear within large scale vortices that form below the transition layer, and they result in the episodic production of distinctive cold phase structures referred to as irradiated atmospheric fragments (IAFs). Upon interacting with the wind, IAFs advect outward and develop extended crests. The subsequent disintegration of the IAFs takes place within a turbulent wake that reaches high elevations above the disk. We show that this dynamics has the following observational implications: dips in the absorption measure distribution are no longer expected within TI zones and there can be a less sudden desaturation of X-ray absorption lines such as \OVIII as well as multiple absorption troughs in \FeXXVK.
description: Published in ApJ. Simulations viewable at https://trwaters.github.io/multiphaseAGNdiskwinds/ Companion paper arXiv:2103.06497
Solubilization and Transformation of Insoluble Zinc Compounds by Fungi Isolated from a Zinc Mine
Creators: name: Thanawat Sutjaritvorakul
name: Gadd, Geoffrey M.
name: Kallaya Suntornvongsagul
name: Whalley, Anthony J.S.
name: Sophon Roengsumran
name: Prakitsin Sihanonth
Publisher: name: Thai Society of Higher Education Institutes on Environment
Year: 2013
Subjects: solubilization,transformation,zinc compounds,fungi,bioremediation

description: 2, 6, EnvironmentAsia
Communicating over adversarial quantum channels using quantum list codes
Creators: name: Leung, Debbie
name: Smith, Graeme
Publisher: name: arXiv
Year: 2006
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We study quantum communication in the presence of adversarial noise. In this setting, communicating with perfect fidelity requires using a quantum code of bounded minimum distance, for which the best known rates are given by the quantum Gilbert-Varshamov (QGV) bound. By asking only for arbitrarily high fidelity and allowing the sender and reciever to use a secret key with length logarithmic in the number of qubits sent, we achieve a dramatic improvement over the QGV rates. In fact, we find protocols that achieve arbitrarily high fidelity at noise levels for which perfect fidelity is impossible. To achieve such communication rates, we introduce fully quantum list codes, which may be of independent interest.
description: 6 pages. Discussion expanded and more details provided in proofs. Far less unclear than previous version
Anatomy of composition : how are Japanese compositions evaluated?
Creators: name: Imaki, Jun
Publisher: name: The Australian National University
Year: 2014
Subjects: subject: Japanese language Composition and exercises.
subject: Japanese language Study and teaching Foreign speakers
subject: Japanese language Ability testing

description: This study aims to clarify the mechanisms for evaluating Japanese compositions written by non-native learners. In this paper, I discuss the effect of the background of raters, and the marking order and the carryover effect for L2 Japanese compositions. In the first part of this study, 29 raters are grouped into three categories: native Japanese speakers with Japanese teaching experience, non-native speakers with Japanese teaching experience, and native speakers without a teaching background. I conducted evaluation and comparisons of several different pairs in this study including native and non-native Japanese teachers, by gender, and by people with and without a Japanese teaching background. These raters were asked to evaluate ten compositions written by non-native speakers in terms of five categories; overall; accuracy; structure and form; content; and richness. I discovered a difference amongst the groups in terms of some raters being more lenient was discovered from this experiment. The results revealed that non-native Japanese teachers are more generous with learners' errors and gave higher marks for all five evaluation categories. When comparing Japanese language teachers and people without a teaching background, their overall evaluation did not show any statistically significant differences even though teachers tended to give higher scores across the other four categories. In the second part of the study, I discovered the effect of the order of evaluation to be influential upon rater decisions. The compositions which were evaluated first and sixth out of the ten compositions tended to receive higher marks. The carryover effect is found to be quite influential as well. Compositions evaluated directly after a good composition tended to receive lower marks and compositions evaluated directly after a bad composition tended to receive higher marks. However, not only does the rating of the previous composition affect the following compositions' score, the countable features of the composition such as the proportion of kanji characters and the composition's length, might also influence the score of the composition which is evaluated directly after it. These findings suggest that, in order for there to be fair evaluations, students' compositions should not be marked in a particular order such as alphabetical order. This solid, reliable information on why raters give the marks they do will help build a firm foundation for the further development of rater training.
Preliminary Screening a Potential AChE Inhibitor in Thai Golden Shower (Leguminosae mimosoideae) Extracts
Creators: name: Jakkaphun Nanuam
name: Khobkul Nongnutch
name: Chawanrat Somnuek
name: Voravit Cheevaporn
Publisher: name: Thai Society of Higher Education Institutes on Environment
Year: 2013
Subjects: AChE inhibitor,ethanolic plant extracts,golden shower (Leguminosae mimosoideae),golden apple snail (Pomacea canaliculata)

description: 2, 6, EnvironmentAsia
Detecting three-qubit bound MUB diagonal entangled states via Nonlinear optimal entanglement witnesses
Creators: name: Jafarizadeh, M. A.
name: Mahdian, M.
name: Heshmati, A.
name: Aghayari, K.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: One of the important approaches to detect quantum entanglement is using linear entanglement witnesses EWs. In this paper, by determining the envelope of the boundary hyper-planes defined by a family of linear EWs, a set of powerful nonlinear optimal EWs is manipulated. These EWs enable us to detect some three qubits bound MUB (mutually unbiased bases) diagonal entangled states, i.e., the PPT (positive partial transpose) entangled states. Also, in some particular cases, the introduced nonlinear optimal EWs are powerful enough to separate the bound entangled regions from the separable ones. Finally, we present numerical examples to demonstrate the practical accessibility of this approach. Keywords :nonlinear optimal entanglement witnesses, mutually unbiased bases, MUB diagonal states
description: 34 pages 11 figures
Biodegradation of Textile Dyes by Fungi Isolated from North Indian Field Soil
Creators: name: Shahid, Arshi
name: Jagvijay Singh
name: Bisht, Sandeep
name: Priyanku Teotia
name: Kumar, Vivek
Publisher: name: Thai Society of Higher Education Institutes on Environment
Year: 2013
Subjects: bioremediation,biosorption,dyes,soil fungi

description: 2, 6, EnvironmentAsia
Bottom-"wide" Approach to Climate Change - Typology and Analysis on Climate Vulnerability Reduction through Voluntary Actions
Creators: name: Miyaguchi, Takaaki
name: Yamaura, Kiyoto
Publisher: name: Thai Society of Higher Education Institutes on Environment
Year: 2013
Subjects: climate change,vulnerability,volunteerism,community-based,bottom-up approach

description: 2, 6, EnvironmentAsia
Text: Story of the Kuankuan
Creators: name: Criollo Chapal, Guillermo Sergio
name: Dabkowski, Maksymilian
name: Aguinda, Shen
name: Quenamá, Leidy
Publisher: name: California Language Archive, University of California, Berkeley
Year: 2021
Subjects: subject: con

description: A man didn't know how to hunt. He decided to follow the white-lipped peccaries until they arrived at a cave, and he crossed over to another world and encountered the Kuankuan, who are subterranean beings. The Kuankuan taught him how to be the master of peccaries.
Classical magnetotransport of inhomogeneous conductors
Creators: name: Parish, Meera M.
name: Littlewood, Peter B.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: FOS: Physical sciences

description: We present a model of magnetotransport of inhomogeneous conductors based on an array of coupled four-terminal elements. We show that this model generically yields non-saturating magnetoresistance at large fields. We also discuss how this approach simplifies finite-element analysis of bulk inhomogeneous semiconductors in complex geometries. We argue that this is an explanation of the observed non-saturating magnetoresistance in silver chalcogenides and potentially in other disordered conductors. Our method may be used to design the magnetoresistive response of a microfabricated array.
description: 12 pages, 13 figures. Minor typos corrected
Prediction of Hourly Particulate Matter Concentrations in Chiangmai, Thailand Using MODIS Aerosol Optical Depth and Ground-Based Meteorological Data
Creators: name: Thongchai Kanabkaew
Publisher: name: Thai Society of Higher Education Institutes on Environment
Year: 2013
Subjects: Particulate matter,Aerosol optical depth,MODIS,Chiangmai

description: 2, 6, EnvironmentAsia
Boundaries, Vermas, and Factorisation
Creators: name: Bullimore, Mathew
name: Crew, Samuel
name: Zhang, Daniel
Publisher: name: arXiv
Year: 2020
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We revisit the factorisation of supersymmetric partition functions of 3d $\mathcal{N}=4$ gauge theories. The building blocks are hemisphere partition functions of a class of UV $\mathcal{N}=(2,2)$ boundary conditions that mimic the presence of isolated vacua at infinity in the presence of real mass and FI parameters. These building blocks can be unambiguously defined and computed using supersymmetric localisation. We show that certain limits of these hemisphere partition functions coincide with characters of lowest weight Verma modules over the quantised Higgs and Coulomb branch chiral rings. This leads to expressions for the superconformal index, twisted index and $S^3$ partition function in terms of such characters. On the way we uncover new connections between boundary 't Hooft anomalies, hemisphere partition functions and lowest weights of Verma modules.
description: 33+17 pages, 3 figures. v2: added citations, minor revision of squashed sphere factorisation section
Size dependence of solar X-ray flare properties
Creators: name: Battaglia, Marina
name: Grigis, Paolo C.
name: Benz, Arnold O.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: Non-thermal and thermal parameters of 85 solar flares of GOES class B1 to M6 (background subtracted classes A1 to M6) have been compared to each other. The hard X-ray flux has been measured by RHESSI and a spectral fitting provided flux and spectral index of the non-thermal emission, as well as temperature and emission measure of the thermal emission. The soft X-ray flux was taken from GOES measurements. We find a linear correlation in a double logarithmic plot between the non-thermal flux and the spectral index. The higher the acceleration rate of a flare, the harder the non-thermal electron distribution. The relation is similar to the one found by a comparison of the same parameters from several sub-peaks of a single flare. Thus small flares behave like small subpeaks of large flares. Thermal flare properties such as temperature, emission measure and the soft X-ray flux also correlate with peak non-thermal flux. A large non-thermal peak flux entails an enhancement in both thermal parameters. The relation between spectral index and the non-thermal flux is an intrinsic feature of the particle acceleration process, depending on flare size. This property affects the reported frequency distribution of flare energies.
description: Astronomy and Astrophysics, in press
Real time distributed network simulation with pc clusters
Creators: name: Hollman, Jorge Ariel
Publisher: name: University of British Columbia
Year: 2009

description: This work presents a new architecture layout to perform real time network simulations distributed among multiple IBM1-compatible desktop computers. A network simulation with a PC cluster scheme can successfully cope with the size of growing power systems and fast transient studies. A powerful product has been developed using off-theshelf Pentium II 400 Mhz personal workstations with a commercially available real-time operating system, standard I/O interfaces, a multimachine scheme and the RTNS2 realtime power system simulation software as core solver. Models based on the standard tool worldwide for power systems transients simulations, the EMTP program [1],[2], and improved ones for real time performance assure accurate simulation results. Taking advantage of the hardware and software characteristic of the designed simulator, fast and accurate simulations can be executed in a very portable, efficient and economic platform, placing the presented simulator in a better competitive position than expensive TNA's supercomputer simulator systems.