cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Heavy quarkonium in saturated environment of high-multiplicity pp collisions
Creators: name: Kopeliovich, B. Z.
name: Pirner, H. J.
name: Potashnikova, I. K.
name: Reygers, K.
name: Schmidt, Ivan
Publisher: name: arXiv
Year: 2019
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: High-multiplicity pp collisions exhibit features, traditionally associated with nuclear effects. Coherence motivates to treat high-multiplicity pp, pA and AA collisions on an equal footing. We rely on the phenomenological parametrization for mean multiplicities of light hadrons and J/psi, assuming their linear dependence on N_{coll} in pA collisions. The results of this approach underestimate the recently measured production rate of J/psi at very high hadronic multiplicities. The linear dependence of J/psi multiplicity on N_{coll} is subject to predicted nonlinear corrections, related to mutual boosting of the saturation scales in colliding dense parton clouds. A parameter-free calculation of the non-linear corrections allows to explain data for pT-integrated yield of J/psi at high hadronic multiplicities. Calculations are in a good accord with data binned in several pT-intervals as well. As was predicted, Upsilon and J/psi are equally suppressed at forward rapidities in pA collisions. Consequently, their fractional multiplicities at forward rapidities in pp collisions are equal as well, and their magnitude agrees with data.
description: 6 pages, 4 figures, 2 references added
WR 72: a born-again planetary nebula with hydrogen-poor knots
Creators: name: Gvaramadze, V. V.
name: Kniazev, A. Y.
name: Graefener, G.
name: Langer, N.
Publisher: name: arXiv
Year: 2019
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: We report the discovery of a handful of optical hydrogen-poor knots in the central part of an extended infrared nebula centred on the [WO1] star WR 72, obtained by spectroscopic and imaging observations with the Southern African Large Telescope (SALT). Wide-field Infrared Survey Explorer (WISE) images of the nebula show that it is composed of an extended almost circular halo (of $\approx6$ arcmin or $\approx2.4$ pc in diameter) and an elongated and apparently bipolar inner shell (of a factor of six smaller size), within which the knots are concentrated. Our findings indicate that WR 72 is a new member of the rare group of hydrogen-poor planetary nebulae, which may be explained through a very late thermal pulse of a post-AGB star, or by a merger of two white dwarfs.
description: 7 pages, 5 figures, accepted for publication in MNRAS
The X-ray Properties of the Nearby Star-Forming Galaxy IC 342: The XMM-Newton View
Creators: name: Bauer, F. E.
name: Brandt, W. N.
name: Lehmer, B.
Publisher: name: arXiv
Year: 2003
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We present the X-ray properties of IC342 using XMM-Newton. Thirty-five sources are detected coincident with the disk of IC342 (more than tripling the number known), of which ~31 are likely to be intrinsic to IC342. This population shows a range of spectral properties and has an X-ray luminosity function slope and infrared luminosity comparable to that of starburst galaxies such as M82 and the Antennae, while its relative lack of extended X-ray emission is similar to the properties of quiescent spirals. We do detect long-term variability between this observation and the 1991 ROSAT and 1993/2000 ASCA observations for five sources. Notably, the second most luminous source IC342 X-2 is is found to be in its the lowest luminosity state observed for X-2 to date, although the slope of the spectrum is intermediate between the previously observed low/hard and high/soft states. IC342 X-1, on the other hand, is found to be in an identical state to that observed in 2000 with ASCA. Assuming X-1 is in an anomalous very high (VH) state, then either (1) X-1 has remained in this state between 2000 and 2002, and is therefore the longest duration VH-state binary ever observed, or (2) it was simply caught in a VH state by chance in both the 2000 ASCA and 2002 XMM-Newton observations. We have also confirmed the ROSAT HRI result that the nucleus of IC342 is made up of both point-like and extended emission. The relative fluxes of the two spectral components suggest that the nucleus is complex, with a soft extended component contributing approximately half of the total luminosity. (Abridged)
description: AJ in press (December 2003), 9 pages, 7 figures, 2 tables, emulateapj.cls used
Nannaria Chamberlin 1918
Creators: name: Hennen, Derek A.
name: Shelley, Rowland M.
Publisher: name: Zenodo
Year: 2015
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Diplopoda
Polydesmida
Xystodesmidae
Nannaria

description: Genus Nannaria Chamberlin 1918a
 Nannaria Chamberlin 1918a: 124. Loomis and Hoffman 1948: 53. Hoffman 1949: 381; 1964: 33; 1980: 159; 1999: 365. Chamberlin and Hoffman 1958: 39–40. Jeekel 1971: 274. Kevan 1983: 2968. Shelley 2000: 196. Marek et al. 2014: 36.
 Type-species. Nannaria minor Chamberlin 1918a, by original designation.
 Remarks. Nannaria occurs from westcentral New York and southeastern Virginia to western Ohio and perhaps eastcentral Kentucky / Tennessee and northern Alabama / Georgia, and presently comprises 17 species. However, N. ericacea and N. scutellaria, for example, do not seem congeneric with N. minor and appear to require new genera, and numerous new and undiscovered species and genera undoubtedly await discovery in both the field and preserved holdings. A revision is needed but can only derive as part of a comprehensive tribal review, which is well beyond our scope. We note, however, that the holotypes of the two most important components – N. minor, the type-species, and N. oblonga, the oldest name and thus holding priority over all others – have never been illustrated, and knowledge of their gonopods is essential for generic and tribal revisions to advance. We therefore publish such (Fig. 24–25) to eliminate this void and facilitate future research.
description: Published as part of Hennen, Derek A. & Shelley, Rowland M., 2015, A contribution on the milliped tribe Nannariini (Polydesmida: Xystodesmidae): Revalidation of Mimuloria Chamberlin 1928; identities of Fontaria oblonga C. L. Koch 1847, and Nannaria minor Chamberlin 1918; elucidation of the tribal range; and commentaries on Nannaria Chamberlin 1918, and Oenomaea Hoffman 1964, pp. 1-21 in Insecta Mundi 2015 (418) on page 16, DOI: 10.5281/zenodo.5182058
Finite temperature pion vector form factors in Chiral Perturbation Theory
Creators: name: Nicola, A. Gomez
name: LLanes-Estrada, F. J.
name: Pelaez, J. R.
Publisher: name: arXiv
Year: 2004
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: We discuss the thermal behaviour of the pion vector form factors and calculate them in one-loop Chiral Perturbation Theory. The perturbative result is used to analyze the $T$-dependent electromagnetic pion charge radius, obtaining a rough estimate of the deconfinement critical temperature. Imposing thermal unitarity, we generate the $ρ$ resonance pole for the form factor in the center of mass frame. The $ρ$ peak height in the modulus of the form factor decreases for increasing temperature, while its width increases and the peak position is slightly shifted downwards for $T\simeq$ 150 MeV. These results point in the direction suggested by many analysis of dilepton production data in relativistic heavy ion collisions.
description: 15 pages, 4 figures, final version to appear in Phys.Lett.B, added references and comments, abstract changed
Super-horizon effects on the gauge invariant effective energy density in f(R) gravity
Creators: name: Cheraghchi, S.
name: Shojai, F.
Publisher: name: arXiv
Year: 2019
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: In this article we study the gauge invariant effective energy momentum tensor for cosmological perturbations in f(R) gravity during the inflationary epoch. Considering the super-horizon regime, we derive the effective energy density up to the one-loop corrections. It describes the back-reaction effect of the fluctuations on the background space-time.
description: 18 pages, Accepted for publication in Phys. Rev. D
Quasibound states of an antiproton and a hydrogen atom
Creators: name: Baye, Daniel
name: Dohet-Eraly, Jérémy
Publisher: name: arXiv
Year: 2019
Subjects: subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: Accurate three-body quantal calculations of the system composed of a proton, an antiproton, and an electron are performed in perimetric coordinates with the Lagrange-mesh method, an approximate variational calculation with the simplicity of a calculation on a grid. Quasibound states with respect to the $\bar{p}$ + H($n = 2$) threshold are obtained for $L = 60$ to 71 for various vibrational excitations. Their energies have accuracies up to about $10^{-14}$ atomic units while less precise energies are determined for $L = 56-59$ broader resonances. Their structure is analyzed with the help of mean distances between the particles. These mean distances indicate that the proton-electron subsystem is in excited states, mostly $n = 2$, as predicted by Sakimoto (Phys. Rev. A 98, 042503, 2018) with the Born-Oppenheimer approximation. A comparison performed with this approximation provides the accuracies of its energies and of its proton-antiproton mean distances.
description: Submitted to Phys. Rev. A
Possible signal for critical point in hadronization process
Creators: name: Rybczynski, M.
name: Wlodarczyk, Z.
name: Wilk, G.
Publisher: name: arXiv
Year: 2003
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: We argue that recent data on fluctuations observed in heavy ion collisions show non-monotonic behaviour as function of number of participants (or "wounded nucleons") N_W. When interpreted in thermodynamical approach this result can be associated with a possible structure occuring in the corresponding equation of state (EoS). This in turn could be further interpreted as due to the occurence of some characteristic points (like "softest point" or "critical point") of EoS discussed in the literature and therefore be regarded as a possible signal of the QGP formation in such collisions. We show, however, that the actual situation is still far from being clear and calls for more investigations of fluctuation phenomena in multiparticle production processes to be performed.
description: Minor misprints corrected. Version to be published in Acta Phys. Polon. B35 (2004)
Nannaria minor Chamberlin 1918
Creators: name: Hennen, Derek A.
name: Shelley, Rowland M.
Publisher: name: Zenodo
Year: 2015
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Diplopoda
Polydesmida
Xystodesmidae
Nannaria
Nannaria minor

description: Nannaria minor Chamberlin 1918a
Fig. 25.
 Nannaria minor Chamberlin 1918a: 124. Chamberlin and Hoffman 1958: 41. Hoffman 1964: 33, figs. 5–7, 11; 1999: 367. Marek et al. 2014: 37.
 Type specimen. Male holotype (MCZ) collected by R. Thaxter in July of an unknown year prior to 1918, at Burbank, Carter Co., Tennessee, in the Cherokee National Forest.
 Remarks. Hoffman (1964) observed that N. minor had never been illustrated, which constituted an obstacle to advancing knowledge of the genus and tribe. He thus presented three somatic and an in situ gonopod drawings of an ostensibly conspecific male taken 43.2 km (27.0 mi) southwest of Burbank, not the holotype itself. We concur that this male is conspecific but believe that a dissected holotype gonopod should be drawn and provide such in fig. 25. The proximal divergence of the acropodite and prefemoral process, as opposed to their converging or being subparallel, seems significant as divergence of these structures in nannariinines is primarily distal. Furthermore, the short prefemoral branch is rounded and digitiform instead of spur-like and (sub)acuminate, as in Dr. Hoffman’s (1964, fig. 11) in situ drawing. As the holotype is the only type specimen, we cannot determine whether it truly represents the local population or is atypical in these regards. Securing a series of male topotypes, to address this matter and understand the local population, seems a priority for generic and tribal revisions, but fig. 25 depicts attributes of the holotype nearly a century after the genus and species were established (Chamberlin 1918a).
description: Published as part of Hennen, Derek A. & Shelley, Rowland M., 2015, A contribution on the milliped tribe Nannariini (Polydesmida: Xystodesmidae): Revalidation of Mimuloria Chamberlin 1928; identities of Fontaria oblonga C. L. Koch 1847, and Nannaria minor Chamberlin 1918; elucidation of the tribal range; and commentaries on Nannaria Chamberlin 1918, and Oenomaea Hoffman 1964, pp. 1-21 in Insecta Mundi 2015 (418) on page 17, DOI: 10.5281/zenodo.5182058
Vortex Lattice Inhomogeneity in Spatially Inhomogeneous Superfluids
Creators: name: Sheehy, Daniel E.
name: Radzihovsky, Leo
Publisher: name: arXiv
Year: 2004
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: A trapped degenerate Bose gas exhibits superfluidity with spatially nonuniform superfluid density. We show that the vortex distribution in such a highly inhomogeneous rotating superfluid is nevertheless nearly uniform. The inhomogeneity in vortex density, which diminishes in the rapid-rotation limit, is driven by the discrete way vortices impart angular momentum to the superfluid. This effect favors highest vortex density in regions where the superfluid density is most uniform (e.g., the center of a harmonically trapped gas). A striking consequence of this is that the boson velocity deviates from a rigid-body form exhibiting a radial-shear flow past the vortex lattice.
description: 5 RevTeX pgs,2 figures, published version
Distribution of Circumstellar Disk Masses in the Young Cluster NGC 2024
Creators: name: Eisner, J. A.
name: Carpenter, John M.
Publisher: name: arXiv
Year: 2003
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We determine the distribution of circumstellar disk masses in the young (~0.3 Myr) cluster NGC 2024 by imaging a 2.5'x2.5' region in 3mm continuum emission to an RMS noise level of ~0.75 mJy/beam with the Owens Valley Millimeter Array. The mosaic encompasses 147 K-band sources as well as the molecular ridge seen previously in dust continuum emission. We detect 10 point-like sources in 3mm continuum emission above the level of 5-sigma within the unit gain region of the mosaic. One of these sources corresponds to the near-IR source IRS 2, an early B-type star. Two other sources are tentatively associated with low-mass near-IR cluster members, and the remaining 7 sources have no K-band counterparts. Assuming the millimeter continuum point sources represent emission from circumstellar disks and/or envelopes, then ~6% of the total population (infrared and millimeter sources) in the NGC 2024 mosaic has a circumstellar mass in excess of ~0.06 solar masses. We obtain further constraints on the average circumstellar disk mass by considering the mean millimeter continuum flux observed toward a sample of 140 K-band sources that likely have stellar masses <1-2 Msun. While none of these sources are detected individually above the 3-sigma limit of ~0.035 Msun, the ensemble of sources are detected in the mean at the 5-sigma level with a mean disk mass of ~0.005 Msun. Compared to the older (~2 Myr) cluster IC 348, NGC 2024 contains a higher frequency of massive disks/envelopes and has a higher mean disk mass by a factor of 2.5 +/- 1.3 among K-band sources, suggesting that the mean circumstellar mass is decreasing with cluster age. We also compare the results for the NGC 2024 and IC 348 clusters to those for the lower-density Taurus star forming region.
description: Accepted for publication in ApJ (December 1, 2003 issue)
Dynamics of solar coronal loops II. Catastrophic cooling and high-speed downflows
Creators: name: Mueller, D. A. N.
name: Peter, H.
name: Hansteen, V. H.
Publisher: name: arXiv
Year: 2004
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: This work addresses the problem of plasma condensation and ``catastrophic cooling'' in solar coronal loops. We have carried out numerical calculations of coronal loops and find several classes of time-dependent solutions (static, periodic, irregular), depending on the spatial distribution of a temporally constant energy deposition in the loop. Dynamic loops exhibit recurrent plasma condensations, accompanied by high-speed downflows and transient brightenings of transition region lines, in good agreement with features observed with TRACE. Furthermore, these results also offer an explanation for the recent EIT observations of De Groof et al. (2004) of moving bright blobs in large coronal loops. In contrast to earlier models, we suggest that the process of catastrophic cooling is not initiated by a drastic decrease of the total loop heating but rather results from a loss of equilibrium at the loop apex as a natural consequence of heating concentrated at the footpoints of the loop, but constant in time.
description: 13 pages, 15 figures
Probabilistic Simulation of Quantum Circuits with the Transformer
Creators: name: Carrasquilla, Juan
name: Luo, Di
name: Pérez, Felipe
name: Milsted, Ashley
name: Clark, Bryan K.
name: Volkovs, Maksims
name: Aolita, Leandro
Publisher: name: arXiv
Year: 2019
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: The fundamental question of how to best simulate quantum systems using conventional computational resources lies at the forefront of condensed matter and quantum computation. It impacts both our understanding of quantum materials and our ability to emulate quantum circuits. Here we present an exact formulation of quantum dynamics via factorized generalized measurements which maps quantum states to probability distributions with the advantage that local unitary dynamics and quantum channels map to local quasi-stochastic matrices. This representation provides a general framework for using state-of-the-art probabilistic models in machine learning for the simulation of quantum many-body dynamics. Using this framework, we have developed a practical algorithm to simulate quantum circuits with the Transformer, a powerful ansatz responsible for the most recent breakthroughs in natural language processing. We demonstrate our approach by simulating circuits which build GHZ and linear graph states of up to 60 qubits, as well as a variational quantum eigensolver circuit for preparing the ground state of the transverse field Ising model on six qubits. Our methodology constitutes a modern machine learning approach to the simulation of quantum physics with applicability both to quantum circuits as well as other quantum many-body systems.
description: 12 pages, 11 figures including supplementary materials
A Limit Relation between Black Hole Mass and H$β$ Width: Testing Super-Eddington Accretion in Active Galactic Nuclei
Creators: name: Wang, Jian-Min
Publisher: name: arXiv
Year: 2003
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: (abbreviated) We show that there is a limit relation between the black hole mass and the width at the half maximum of H$β$ for active galactic nuclei (AGNs) with super-Eddington accretion rates. When a black hole has a super-Eddington accretion rate, the empirical relation of reverberation mapping has two possible ways. First, it reduces to a relation between the black hole mass and the size of the broad line region due to the photon trapping effects inside the accretion disk. For the Kaspi et al.'s empirical reverberation relation, we get the limit relation as $M_{\rm BH}=(2.9 - 12.6)\times 10^6M_{\odot} (\upsilon_{\rm FWHM}/10^3{\rm km s^{-1}})^{6.67}$, called as the Eddington limit. Second, the Eddington limit luminosity will be relaxed if the trapped photons can escape from the magnetized super-Eddington accretion disk via the photon bubble instability, and the size of the broad line region will be enlarged according to the empirical reverberation relation, leading to a relatively narrow width of H$β$. We call this the Begelman limit. Super-Eddington accretions in a sample composed of 164 AGNs have been searched by this limit relation. We find there are a handful of objects locate between the Eddington and Begelman limit lines, they may be candidates of super-Eddington accretors in a hybrid structure of photon trapping and photon bubble instability. The maximum width of H$β$ is in the reange of $(3.0 - 3.8)\times 10^3$ km s$^{-1}$ for the maximum mass black holes with super-Eddington accretion rates among AGNs. We suggest that this limit relation is more reliable and convenient to test whether a source is super-Eddington and useful to probe the structure of the super-Eddington accretion process.
description: 5 pages (emulateapj5.sty), 1 figure. Astronomical Journal, 125 (June Issue 2003) in press
Supervised Encoding for Discrete Representation Learning
Creators: name: Le, Cat P.
name: Zhou, Yi
name: Ding, Jie
name: Tarokh, Vahid
Publisher: name: arXiv
Year: 2019
Subjects: subject: Computer Vision and Pattern Recognition (cs.CV)
subject: Machine Learning (cs.LG)
subject: Machine Learning (stat.ML)
subject: FOS: Computer and information sciences

description: Classical supervised classification tasks search for a nonlinear mapping that maps each encoded feature directly to a probability mass over the labels. Such a learning framework typically lacks the intuition that encoded features from the same class tend to be similar and thus has little interpretability for the learned features. In this paper, we propose a novel supervised learning model named Supervised-Encoding Quantizer (SEQ). The SEQ applies a quantizer to cluster and classify the encoded features. We found that the quantizer provides an interpretable graph where each cluster in the graph represents a class of data samples that have a particular style. We also trained a decoder that can decode convex combinations of the encoded features from similar and different clusters and provide guidance on style transfer between sub-classes.
Saprovisca Stebnicka 1993
Creators: name: Skelley, Paul E.
Publisher: name: Zenodo
Year: 2015
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Coleoptera
Aphodiidae
Saprovisca

description: Saprovisca Stebnicka, 1993
 Type species. Saprovisca leytensis Stebnicka, 1993, by original designation.
 Diagnosis. Saprovisca is most similar to the genus Saprosites Redtenbacher, differing most notably in the presence of clypeal teeth. Both genera share a large and tumid head, parallel-sided and robust body, relatively short front legs, notably curved sutures between the abdominal sternites, and an almost V-shaped subapical suture.
 Remarks. Stebnicka (1993) briefly discusses some character similarities between Saprovisca and Cnematoplatys Schmidt, and considers Saprovisca to be an intermediate genus between Cnematoplatys and Saprosites. The rarity of both Cnematoplatys and Saprovisca in collections may be a factor of the brachypterous state of some included species, or unusual and unknown life histories.
description: Published as part of Skelley, Paul E., 2015, Saprovisca sarangay, new species, a second species in an unusual Philippine genus of Eupariini (Coleoptera: Scarabaeidae: Aphodiinae), pp. 1-6 in Insecta Mundi 2015 (419) on page 1, DOI: 10.5281/zenodo.5182001
Mysterious gates دروازه های اسرارآمیز
Creators: name: Roostaei, Farzaneh
Publisher: name: Zenodo
Year: 2021
Subjects: انجماد در زمان
تولد سیاهچاله
رصد سیاهچاله
رُمبش
سیاهچاله کِر
پل اینشتین-روزن
روی کِر
فضاهای متصل چندگانه
آسمان شب
جهان مرئی
فواره بلند گازی
قرص برافزایشی
جهان های بیشمار
افق رویداد
سوخت هسته ای
تلسکوپ فضایی هابل
قطر شوارتسشیلد
سرعت گریز ستاه ای
کارل شوارتسشیلد
یوهانس دروست

description: در سال 1783 ستاره شناس بریتانیایی، جان میشل، نخستین کسی بود که این سوال را مطرح کرد: "اگر ستاره ای به اندازه ای سنگین باشد که حتی نور نیز نتواند از آن بگریزد، چه اتفاقی خواهد افتاد؟" به عبارتی میشل مطرح کرد اگه سرعت گریز ستاه­ای (سرعت گریز سرعتی است که لازم است تا بتوان از نیروی گرانش هر جرمی گریخت) با سرعت نور برابر شود چه روی خواهد داد؟ پاسخ انتزاعی این پرسش فرضی واضح بود، آنگاه نیروی گرانش چنان عظیم خواهد بود که هیچ چیز نمی­تواند از آن بگریزد، حتی خود نور و درنتیجه این جرم از دید دنیای خارج سیاه دیده می­شود. یافتن چنین جرمی در فضا به نوعی غیر ممکن است، زیرا چنین جرمی قابل رویت نیست. به همین دلیل فرضِ به ظاهر محالِ میشل برای یک قرن و نیم به فراموشی سپرده شد.
A.K.Kwasniewski, W.Bajguz Generalized Clifford Algebras and the Last Fermat Theorem
Creators: name: Kwasniewski, A. K.
name: Bajguz, W.
Publisher: name: arXiv
Year: 2004
Subjects: subject: General Mathematics (math.GM)
subject: FOS: Mathematics
subject: 11Dxx:11D41

description: One shows that the Last Fermat Theorem is equivalent to the statement that all rational solutions of the famous equation are provided by an orbit of rationally parametrized subgroup of a group preserving k-ubic form. This very group naturally arrises in the generalized Clifford algebras setting .
Calculations of K+, K- and phi Production in Near-Threshold Proton-Nucleus Collisions
Creators: name: Barz, H. W.
name: Kampfer, B.
name: Naumann, L.
name: Wolf, Gy.
name: Zetenyi, M.
Publisher: name: arXiv
Year: 2004
Subjects: subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: K+, K- and ϕmeson production in proton-nucleus (pA) collisions has been calculated within a BUU transport model. It is shown that the nucleon-hyperon strangeness transfer channel is essential. The role of three-body reactions has been investigated within the medium. The targetmass dependence of $ϕ$ production is predicted to give important information on the in-medium properties of all three mesons.
description: Talk presented by H.W.B. at the Budapest 2004 workshop on 'Hot and Dense Matter in Relativistic Heavy Ion Collisions', March 24-27, 2004, Budapest, Hungary
Saprovisca Stebnicka 1993
Creators: name: Skelley, Paul E.
Publisher: name: Zenodo
Year: 2015
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Coleoptera
Aphodiidae
Saprovisca

description: Key to species of Saprovisca
1.
—
description: Published as part of Skelley, Paul E., 2015, Saprovisca sarangay, new species, a second species in an unusual Philippine genus of Eupariini (Coleoptera: Scarabaeidae: Aphodiinae), pp. 1-6 in Insecta Mundi 2015 (419) on page 2, DOI: 10.5281/zenodo.5182001
Four-Dimensional Einstein Yang-Mills De Sitter Gravity From Eleven Dimensions
Creators: name: Lu, H.
name: Vazquez-Poritz, J. F.
Publisher: name: arXiv
Year: 2003
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We obtain D=4 de Sitter gravity coupled to SU(2) Yang-Mills gauge fields from an explicit and consistent truncation of D=11 supergravity via Kaluza-Klein dimensional reduction on a non-compact space. The ``internal'' space is a smooth hyperbolic 7-space (H^7) written as a foliation of two 3-spheres, on which the SU(2) Yang-Mills fields reside. The positive cosmological constant is completely fixed by the SU(2) gauge coupling constant. The explicit reduction ansatz enables us to lift any of the D=4 solutions to D=11. In particular, we obtain dS_2 in M-theory, where the nine-dimensional transverse space is an H^7 bundle over S^2. We also obtain a new smooth embedding of dS_3 in D=6 supergravity.
description: Latex, 10 pages, references added
The ISOGAL field FC--01863+00035: Mid-IR interstellar extinction and stellar populations
Creators: name: Jiang, B. W.
name: Omont, A.
name: Ganesh, S.
name: Simon, G.
name: Schuller, F.
Publisher: name: arXiv
Year: 2003
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: A 0.35\degr $\times$ 0.29\degr field centered at $l$=--18.63\degr, $b$=0.35\degr was observed during the ISOGAL survey by ISOCAM imaging at 7$μ$m and 15{\rm $μ$m}. 648 objects were detected and their brightness are measured. By combining with the DENIS data in the near-infrared J and K$_{\rm S}$ bands, one derives the extinction at 7{\rm $μ$m} through ${\rm A_{K_{\rm S}}-A_7= 0.35 (A_J-A_{K_{\rm S}})}$ which yields A$_{7}$/A$_{\it V}$ $\sim$0.03 from the near-IR extinction values of van de Hulst--Glass (Glass 1999). The extinction structure along the line of sight is then determined from the values of J--K$_{\rm S}$ or K$_{\rm S}$--[7] of the ISOGAL sources identified as RGB or early AGB stars with mild mass-loss. The distribution of A$_{\it V}$ ranges from 0 to $\sim$45 and it reflects the concentration of the extinction in the spiral arms. Based on their locations in color-magnitude diagrams and a few cross-identifications with IRAS and MSX sources, the nature of objects is discussed in comparison with the case of a low extinction field in Baade's Window. Most of the objects are either AGB stars with moderate mass loss rate or luminous RGB stars. Some of them may be AGB stars with high mass loss rate. In addition, a few young stellar objects (YSOs) are present.
description: 14 pages, accepted for publication in Astronomy and Astrophysics
Additional file 1 of Consistent levels of A-to-I RNA editing across individuals in coding sequences and non-conserved Alu repeats
Creators: name: Greenberger, Shoshana
name: Levanon, Erez Y
name: Paz-Yaacov, Nurit
name: Barzilai, Aviv
name: Safran, Michal
name: Osenberg, Sivan
name: Amariglio, Ninette
name: Rechavi, Gideon
name: Eisenberg, Eli
Publisher: name: figshare
Year: 2021
Subjects: subject: Genetics
subject: FOS: Biological sciences

description: Additional file 1: Supplementary information. This file includes supplementary tables and figures, primers that have been used and detailed information about ADAR1 expression results. (PDF 322 KB)
HD 93795: a late-B supergiant star with a square circumstellar nebula
Creators: name: Gvaramadze, V. V.
name: Kniazev, A. Y.
name: Castro, N.
name: Katkov, I. Y.
Publisher: name: arXiv
Year: 2019
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: We report the discovery of a square axisymmetric circumstellar nebula around the emission-line star HD 93795 in archival Spitzer Space Telescope 24 micron data. We classify HD 93795 as an B9 Ia star using optical spectra obtained with the Southern African Large Telescope (SALT). A spectral analysis carried out with the stellar atmosphere code FASTWIND indicates that HD 93795 only recently left the main sequence and is evolving redward for the first time. We discuss possible scenarios for the origin of the nebula and suggest that HD 93795 was originally a binary system and that the nebula was formed because of merger of the binary components. We also discuss a discrepancy between distance estimates for HD 93795 based on the Gaia data and the possible membership of this star of the Car OB1 association, and conclude that HD 93795 could be at the same distance as Car OB1.
description: 11 pages, 7 figures, accepted for publication in MNRAS
Additional file 2 of Consistent levels of A-to-I RNA editing across individuals in coding sequences and non-conserved Alu repeats
Creators: name: Greenberger, Shoshana
name: Levanon, Erez Y
name: Paz-Yaacov, Nurit
name: Barzilai, Aviv
name: Safran, Michal
name: Osenberg, Sivan
name: Amariglio, Ninette
name: Rechavi, Gideon
name: Eisenberg, Eli
Publisher: name: figshare
Year: 2021
Subjects: subject: Genetics
subject: FOS: Biological sciences

description: Authors’ original file for figure 1
Additional file 1: of Treatment of corn with lactic acid or hydrochloric acid modulates the rumen and plasma metabolic profiles as well as inflammatory responses in beef steers
Creators: name: Yang, You
name: Dong, Guozhong
name: Wang, Zhi
name: Liu, Junhui
name: Chen, Jingbo
name: Zhang, Zhu
Publisher: name: figshare
Year: 2018
Subjects: subject: Biochemistry
subject: Microbiology
subject: FOS: Biological sciences
subject: Genetics
subject: Physiology
subject: Pharmacology
subject: Chemical Sciences not elsewhere classified
subject: Immunology
subject: FOS: Clinical medicine
subject: Cancer
subject: Plant Biology

description: Table S1. Relative distributions (%) of the different ruminal metabolites among the three groups. (DOCX 45 kb)
Saprovisca leytensis Stebnicka 1993
Creators: name: Skelley, Paul E.
Publisher: name: Zenodo
Year: 2015
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Coleoptera
Aphodiidae
Saprovisca
Saprovisca leytensis

description: Saprovisca leytensis Stebnicka
Figures 1–3
 Saprovisca leytensis Stebnicka, 1993: 29–30, 35 fig. 1–3.
 Diagnosis. Length 6.9 mm. Compared with the new species, S. leytensis is easily recognized by having the clypeal lateral margin not indented at juncture with clypeal-genal suture in dorsal view, pronotal disc with scattered moderate punctures and lacking large impunctate areas, humeral denticle small, abdominal sternites with sutures deep and finely fluted, and flight wings vestigial. Saprovisca leytensis occurs on Leyte, Philippines.
 Materials examined. Photos of S. leytensis (Fig. 1–3) were studied. Holotype label data (from Stebnicka 1993): “ Leyte, VISCA N Baybay, in cultivated land, 3.III.1991, leg. W. Schawaller & al.” Deposited in the SMNS.
 Remarks. Assuming S. leytensis possesses similar horn dimorphisms as found in S. sarangay, the holotype is a minor male. The holotype was collected in cultivated area with no large mammals that was near primary forest (in.litt., W. Schawaller).
description: Published as part of Skelley, Paul E., 2015, Saprovisca sarangay, new species, a second species in an unusual Philippine genus of Eupariini (Coleoptera: Scarabaeidae: Aphodiinae), pp. 1-6 in Insecta Mundi 2015 (419) on pages 2-3, DOI: 10.5281/zenodo.5182001
Cosmological Density Distribution Function from the Ellipsoidal Collapse Model in Real Space
Creators: name: Ohta, Yasuhiro
name: Kayo, Issha
name: Taruya, Atsushi
Publisher: name: arXiv
Year: 2004
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We calculate the one-point probability distribution function (PDF) for cosmic density in non-linear regime of the gravitational evolution. Under the local approximation that the evolution of cosmic fluid fields can be characterized by the Lagrangian local dynamics with finite degrees of freedom, the analytic expressions of PDF are derived taking account of the smoothing effect. The validity and the usefulness of the local approximation are then discussed comparing those results with N-body simulations in a Gaussian initial condition. Adopting the ellipsoidal collapse model (ECM) and the spherical collapse model (SCM) as Lagrangian local dynamics, we found that the PDFs from the local approximation excellently match the simulation results in the case of the cold dark matter initial spectrum. As for the scale-free initial spectra given by $P(k)\propto k^n$, N-body result suffers from spurious numerical effects, which prevent us to give a detailed comparison. Nevertheless, at the quality of N-body data, the model predictions based on the ECM and the SCM quantitatively agree with N-body results in cases with spectral index n<0. For the index n>=0, choice of the Lagrangian local dynamics becomes crucial for an accurate prediction and a more delicate modeling is required, however, we find that the model prediction based on the ECM provides a better approximation to the N-body results of cumulants and PDFs.
description: 35 pages, 7 figures
Power-law tail distributions and nonergodicity
Creators: name: Lutz, Eric
Publisher: name: arXiv
Year: 2004
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: We establish an explicit correspondence between ergodicity breaking in a system described by power-law tail distributions and the divergence of the moments of these distributions.
description: 4 pages, 1 figure, corrected typos
Two-dimensional superstrings and the supersymmetric matrix model
Creators: name: McGreevy, John
name: Murthy, Sameer
name: Verlinde, Herman
Publisher: name: arXiv
Year: 2003
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We present evidence that the supersymmetric matrix model of Marinari and Parisi represents the world-line theory of N unstable D-particles in type II superstring theory in two dimensions. This identification suggests that the matrix model gives a holographic description of superstrings in a two-dimensional black hole geometry.
description: 22 pages, 2 figures; v2: corrected eqn 4.6; v3: corrected appendices and discussion of vacua, added refs
Additional file 3 of Consistent levels of A-to-I RNA editing across individuals in coding sequences and non-conserved Alu repeats
Creators: name: Greenberger, Shoshana
name: Levanon, Erez Y
name: Paz-Yaacov, Nurit
name: Barzilai, Aviv
name: Safran, Michal
name: Osenberg, Sivan
name: Amariglio, Ninette
name: Rechavi, Gideon
name: Eisenberg, Eli
Publisher: name: figshare
Year: 2021
Subjects: subject: Genetics
subject: FOS: Biological sciences

description: Authors’ original file for figure 2
Additional file of Consistent levels of A-to-I RNA editing across individuals in coding sequences and non-conserved Alu repeats
Creators: name: Greenberger, Shoshana
name: Levanon, Erez Y
name: Paz-Yaacov, Nurit
name: Barzilai, Aviv
name: Safran, Michal
name: Osenberg, Sivan
name: Amariglio, Ninette
name: Rechavi, Gideon
name: Eisenberg, Eli
Publisher: name: figshare
Year: 2021
Subjects: subject: Genetics
subject: FOS: Biological sciences

description: Additional file of Consistent levels of A-to-I RNA editing across individuals in coding sequences and non-conserved Alu repeats
XMM-Newton observation of the Seyfert 1 ESO 198-G24
Creators: name: Porquet, D.
name: Kaastra, J. S.
name: Page, K. L.
name: O'Brien, P. T.
name: Ward, M. J.
name: Dubau, J.
Publisher: name: arXiv
Year: 2003
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We present the results from an XMM-Newton observation (January 24, 2001) of the bright Seyfert 1 galaxy ESO 198-G24 (z=0.045). We found that this Seyfert has an intrinsic 2-10 keV luminosity of about 10^44 erg s-1. This source shows no intrinsic absorption in addition to the Galactic absorption (N_{H}~3 x 10^20 cm-2). We found both with EPIC and RGS that this source possesses significantly steeper spectra below ~ 1.5-2 keV than observed at higher X-ray energies, the so-called soft X-ray excess. The RGS spectra reveal no significant narrow absorption lines suggesting that if there is a warm absorber, it either has a relatively low column density, or a very high ionization parameter. The RGS data are well described by the combination of a power-law, a modified black body continuum, and weak relativistic lines of O VIII, and C VI Lyalpha. However other interpretations are not definitely excluded. The 2-10 keV energy band is well fitted by an absorbed power-law with a photon spectral index of Gamma=1.77 +/- 0.04 (consistent with the typical Gamma~1.7 found in Seyfert 1 galaxies). We found the presence of a narrow Gaussian emission line at 6.41 keV (i.e < Fe XVII) with a moderate equivalent width of about 60-70 eV, and we found an upper limit for a broad component, if any, of 75 eV. We also found a weak absorption edge associated with cold iron with an optical depth of about 0.2.
description: Accepted for publication in A&A, 9 pages, 6 figures, 3 tables
Optimal Control for Chemotaxis Systems and Adjoint-Based Optimization with Multiple-Relaxation-Time Lattice Boltzmann Models
Creators: name: Belmiloudi, Aziz
Publisher: name: arXiv
Year: 2019
Subjects: subject: Optimization and Control (math.OC)
subject: Numerical Analysis (math.NA)
subject: FOS: Mathematics
subject: 92B05, 49J20, 35Q92, 49M25, 92C50, 65K15, 35K57, 65M99

description: This paper is devoted to continuous and discrete adjoint-based optimization approaches for optimal control problems governed by an important class of Nonlinear Coupled Anisotropic Convection-Diffusion Chemotaxis-type System (NCACDCS). This study is motivated by the fact that the considered complex systems (with complex geometries) appear in diverse biochemical, biological and biosocial criminology problems. To solve numerically the corresponding nonlinear optimization problems, the primal problem NCACDCS is discretised by a coupled Lattice Boltzmann Method with a general Multiple-Relaxation-Time collision operators (MRT) while for the adjoint problem, an Adjoint Multiple-Relaxation-Time lattice Boltzmann model (AMRT) is proposed and investigated. First, the optimal control problems are formulated and first-order necessary optimality conditions are established by using sensitivity and adjoint calculus. The resulting problems are discretised by the coupled MRT and AMRT models and solved via gradient descent methods. First of all, an efficient and stable modified MRT model for NCACDCS is developed, and through the Chapman-Enskog analysis we show that NCACDCS can be correctly recovered from the proposed MRT model. For the adjoint problem, the discretisation strategy is based on AMRT model, which is found to be as simple as MRT model with also highly-efficient parallel nature. The derivation of AMRT model and the discrete cost functional gradient are derived mathematically in detail using the developed MRT model. The obtained method is reliable, efficient, practical to implement and can be easily incorporated into any existing MRT code.
Baryon Stopping and the Valence Quark Distribution at Small x
Creators: name: Itakura, Kazunori
name: Kovchegov, Yuri V.
name: McLerran, Larry
name: Teaney, Derek
Publisher: name: arXiv
Year: 2003
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: We argue that the amount of baryon stopping observed in the central rapidity region of heavy ion collisions at RHIC is proportional to the nuclear valence quark distributions at small x. By generalizing Mueller's dipole model to describe Reggeons we construct a non-linear evolution equation for the valence quark distributions at small x in the leading double-logarithmic approximation. The equation includes the effects of gluon saturation in it. The solution of the evolution equation gives a valence quark distribution function $dn_{val}/dy \sim e^{-(0.4\div0.5) y}$. We show that this y-dependence as well as the predictions of Regge theory are consistent with the net-proton rapidity distribution reported by BRAHMS.
description: 25 pages, 10 figures, Sects.II and VI are improved. Many references added, typos corrected, Fig.4 replaced, etc
Rényi and Tsallis entropies of the Aharonov-Bohm ring in uniform magnetic fields
Creators: name: Olendski, O.
Publisher: name: arXiv
Year: 2019
Subjects: subject: Quantum Physics (quant-ph)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Data Analysis, Statistics and Probability (physics.data-an)
subject: FOS: Physical sciences

description: One-parameter functionals of the Rényi $R_{ρ,γ}(α)$ and Tsallis $T_{ρ,γ}(α)$ types are calculated both in the position (subscript $ρ$) and momentum ($γ$) spaces for the azimuthally symmetric 2D nanoring that is placed into the combination of the transverse uniform magnetic field $\bf B$ and the Aharonov-Bohm (AB) flux $ϕ_{AB}$ and whose potential profile is modelled by the superposition of the quadratic and inverse quadratic dependencies on the radius $r$. Position (momentum) Rényi entropy depends on the field $B$ as a negative (positive) logarithm of $ω_{eff}\equiv\left(ω_0^2+ω_c^2/4\right)^{1/2}$, where $ω_0$ determines the quadratic steepness of the confining potential and $ω_c$ is a cyclotron frequency. This makes the sum ${R_ρ}_{nm}(α)+{R_γ}_{nm}(\fracα{2α-1})$ a field-independent quantity that increases with the principal $n$ and azimuthal $m$ quantum numbers and does satisfy corresponding uncertainty relation. Analytic expression for the lower boundary of the semi-infinite range of the dimensionless coefficient $α$ where the momentum entropies exist reveals that it depends on the ring geometry, AB intensity and quantum number $m$. It is proved that there is the only orbital for which both Rényi and Tsallis uncertainty relations turn into the identity at $α=1/2$ and which is not necessarily the lowest-energy level. At any coefficient $α$, the dependence of the position Rényi entropy on the AB flux mimics the energy variation with $ϕ_{AB}$ what, under appropriate scaling, can be used for the unique determination of the associated persistent current. Similarities and differences between the two entropies and their uncertainty relations are discussed too.
Additional file 4 of Consistent levels of A-to-I RNA editing across individuals in coding sequences and non-conserved Alu repeats
Creators: name: Greenberger, Shoshana
name: Levanon, Erez Y
name: Paz-Yaacov, Nurit
name: Barzilai, Aviv
name: Safran, Michal
name: Osenberg, Sivan
name: Amariglio, Ninette
name: Rechavi, Gideon
name: Eisenberg, Eli
Publisher: name: figshare
Year: 2021
Subjects: subject: Genetics
subject: FOS: Biological sciences

description: Authors’ original file for figure 3
Universal behavior of compact star based upon gravitational binding energy
Creators: name: Jiang, Rongrong
name: Wen, Dehua
name: Chen, Houyuan
Publisher: name: arXiv
Year: 2019
Subjects: subject: Nuclear Theory (nucl-th)
subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: Similar to the compactness parameter ($β=M/R$), the gravitational binding energy (GBE) is also a characteristic parameter which can reflect the internal structure of a neutron star and thus can be used to expressing the universal relations. Scaling by the stellar mass, this investigation demonstrates a perfect universal relation between the GBE and the moment of inertia, where both of the normal neutron stars and the quark stars satisfy the same universal relation. Moreover, a fine empirical relation between the GBE and the tidal deformability is proposed, where the difference of the relations can be used to distinguish wether a pulsar is a normal neutron star or a quark star if the stellar mass and the tidal deformability can be observed or estimated rather accurately. These universal relations provide a potential way to estimate the GBE if the stellar mass and the moment of inertia/the tidal deformability are precisely measured.
description: 15 pages, 7 figures
ESTIMATING THE EFFECTS OF VOLUME, PRICES, AND COSTS ON MARKETING MARGINS OF SELECTED FRESH VEGETABLES THROUGH MIXED ESTIMATION
Creators: name: Mittelhammer, Ron C.
name: Price, David W.
name: Mittelhammer, Ron C.
name: Price, David W.
Publisher: name: Unknown
Year: 1978
Subjects: subject: Crop Production/Industries
subject: Demand and Price Analysis
subject: Production Economics
subject: Prior information
subject: Mixed estimation
subject: Margin behavior

description: Prior information derived from previous research, commodity specialists, market institutions, and introspection was used to estimate margin equations for selected fresh vegetables through the mixed estimation technique. Use of this information increased the precision of parameter estimates. Behavioral implications of the statistical results are examined.