cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
The ccbar Pentaquarks by a Quark Model
Creators: name: Takeuchi, Sachiko
name: Takizawa, Makoto
Publisher: name: arXiv
Year: 2016
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: Recent LHCb experiments have shown us that there are two resonances in the $J/ψp$ channel in the $Λ_b$ decay, whose spin and parity are most probably (3/2$^-$ 5/2$^+$). In this work, we investigate the $I(J^P)=1/2(1/2^-)$, $1/2(3/2^-)$, and $1/2(5/2^-)$ $uudc{\bar c}$ pentaquark states by employing the quark cluster model. It is found that the color-octet isospin-1/2 spin-3/2 $uud$ configuration gives an attraction to such five-quark systems. This configuration together with the color-octet $c{\bar c}$ pair gives structures around the $Σ_c^{(*)}{\bar D}{}^{(*)}$ thresholds: one bound state, two resonances, and one large cusp are found in the $uudc{\bar c}$ negative parity channels. We argue that these resonances and cusp may correspond to, or combine to form, the negative parity pentaquark peak observed by LHCb.
description: 4 pages, 4 figures, Proceedings of the 14th International Conference on Meson-Nucleon Physics and the Structure of the Nucleon (MENU2016)
[Halle (Saale), Universitäts- und Landesbibliothek Sachsen-Anhalt, Morbio 8 (11)]
Creators: name: Hubaldus
Publisher: name: Universitäts- und Landesbibliothek Sachsen-Anhalt
Year: 1085
Subjects: subject: Sonstige weltliche Aussteller
subject: Notarsurkunde
subject: Urkunde
subject: 090

description: Hubaldus aus Cremona, Sohn des verstorbenen Albertus, schenkt dem Kapitel der Kathedrale von Cremona ein Stück Land im Gebiet von Spineda, gelegen bei Vighizzolo.
Introdução à animação 3D com Software Livre
Creators: name: Gonçalves, Nelson
Publisher: name: Alfobre.com
Year: 2023

description: Gonçalves, N. (2023). Introdução à animação 3D com Software Livre (2023.12.30). Alfobre.com. https://zenodo.org/doi/10.5281/zenodo.10593590
Empathic Narratives: a Case Study of Immigrati/e in Milan Perceiving the ‘Migration Crisis’
Creators: name: Edirippulige Fernando, Nathasha
Publisher: name: University of Westminster
Year: 2020

description: This research investigates the perceptions of resident migrant communities in Milan’s diverse areas of ‘Zona 2’ and ‘Zona 9’ regarding the current ‘migration crisis’; and aims to determine whether growing discrimination has produced communal solidarity or purposeful disengagement in the affected communities. The findings, resulting from observation analysis and semi-structured interviews, suggest that there are no consistent patterns of discrimination from ‘established migrant’ communities towards recently-arrived ‘new migrants’. On another level, the research also highlights how there is growing discrimination directed towards the religion of Islam and its practitioners – a trend that is aligned with broader media narratives in Italy, and Europe more generally. This thesis provides a close analysis of the ways in which the ‘immigrati’s’ sense of narrativity is constructed and enacted within these local areas of Milan, and how participants of the observation are able to both shape and parse their own narratives within their communities. This thesis is therefore interested in the role played by empathy: the ways in which empathy is enacted or not enacted by the immigrati/e participants; participants’ ability to ‘understand’ the position of the refugee; and the extent to which they perceive parallels between their own experiences of voicelessness and of being ‘the other’ and those of the ‘new migrants’. In this process of self-narration and self-determination the participants express their rejection to consent to discriminatory discourses and terms such as immigrati/e, while actively identifying as stranieri/e and creating new forms of radical narrativity.
Observational Evidence of Particle Acceleration Associated with Plasmoid Motions
Creators: name: Takasao, Shinsuke
name: Asai, Ayumi
name: Isobe, Hiroaki
name: Shibata, Kazunari
Publisher: name: arXiv
Year: 2016
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: We report a strong association between the particle acceleration and plasma motions found in the 2010 August 18 solar flare. The plasma motions are tracked in the extreme-ultraviolet (EUV) images taken by the Atmospheric Imaging Assembly (AIA) on board the Solar Dynamics Observatory and the Extreme UltraViolet Imager (EUVI) on the Solar Terrestrial Relation Observatory spacecraft Ahead, and the signature of particle acceleration was investigated by using Nobeyama Radioheliograph data. In our previous paper, we reported that in EUV images many plasma blobs appeared in the current sheet above the flare arcade. They were ejected bidirectionally along the current sheet, and the blobs that were ejected sunward collided with the flare arcade. Some of them collided or merged with each other before they were ejected from the current sheet. We discovered impulsive radio bursts associated with such plasma motions (ejection, coalescence, and collision with the post flare loops). The radio bursts are considered to be the gyrosynchrotron radiation by nonthermal high energy electrons. In addition, the stereoscopic observation by AIA and EUVI suggests that plasma blobs had a three-dimensionally elongated structure. We consider that the plasma blobs were three-dimensional plasmoids (i.e. flux ropes) moving in a current sheet. We believe that our observation provides clear evidence of particle acceleration associated with the plasmoid motions. We discuss possible acceleration mechanisms on the basis of our results.
description: 29 pages, 10 figures. Published in ApJ
Current Status of the Facility Instrumentation Suite at The Large Binocular Telescope Observatory
Creators: name: Rothberg, Barry
name: Kuhn, Olga
name: Edwards, Michelle L.
name: Hill, John M.
name: Thompson, David
name: Veillet, Christian
name: Wagner, R. Mark
Publisher: name: arXiv
Year: 2016
Subjects: subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: We review the current status of the facility instrumentation for the Large Binocular Telescope (LBT). The LBT has 2x 8.4m primary mirrors on a single mount with an effective collecting area of 11.8m or 23m when interferometrically combined. The facility instruments are: 1) the Large Binocular Cameras (LBCs), each with a 23'x25' field of view (FOV). The blue and red optimized optical LBCs are mounted at the prime focus of the left and right primary mirrors, respectively. The filter suite of the two LBCs covers 0.3-1.1μm, including the new TiO (0.78μm) and CN (0.82μm) filters; 2) the Multi-Object Double Spectrograph (MODS), two identical optical spectrographs each mounted at a straight through f/15 Gregorian mount. MODS-1 & -2 can do imaging with Sloan filters and medium resolution (R~2000) spectroscopy, each with 24 interchangeable masks (multi-object or longslit) over a 6'x6' FOV. Each MODS is capable of blue (0.32-0.6μm) and red (0.5-1.05μm) wavelength only coverage or, using a dichroic, 0.32-1.05μm coverage; and 3) the two LBT Utility Camera in the Infrared instruments (LUCIs), each mounted at a bent-front Gregorian f/15 port. LUCI-1 & 2 are designed for seeing-limited (4'x4'FOV) and AO (0.5'x0.5' FOV) imaging & spectroscopy over 0.95-2.5μm with spectroscopic resolutions of R~400-11000, including 32 interchangeable cryogenically cooled masks. All facility instruments are on the LBT and, for the first time, have been on-sky for science. We also report on the first science use of "mixed-mode" (differently paired instruments). While both primary mirrors reside on a single fixed mount, they are capable of operating independently within a defined "co-pointing" limit. This provides users with the additional capability to independently dither each mirror or center observations on two different sets of spatial coordinates within this limit. (ABRIDGED)
description: Published in Proceedings of the SPIE 9906, Ground-based and Airborne Telescopes VI, 990622 (July 27, 2016). Paper No. 9906-73. 20 pages, 9 Figures
The dimensionless age of the Universe: a riddle for our time
Creators: name: Avelino, Arturo
name: Kirshner, Robert P.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We present the interesting coincidence of cosmology and astrophysics that points toward a dimensionless age of the universe H_0*t_0 that is close to one. Despite cosmic deceleration for 9 Gyr and acceleration since then, we find H_0t*_0 = 0.96 +/- 0.01 for the LCDM model that fits SN Ia data from Pan-STARRS, CMB power spectra, and baryon acoustic oscillations. Similarly, astrophysical measures of stellar ages and the Hubble constant derived from redshifts and distances point to H_0*t ~ 1.0 +/- 0.1$. The wide range of possible values for H_0*t_0 realized during comic evolution means that we live at what appears to be a special time. This "synchronicity problem" is not precisely the same as the usual Coincidence problem because there are combinations of Omega_Matter and Omega_Lambda for which the usual coincidence problem holds but for which H_0*t_0 is not close to 1.
description: 14 pages, 12 figures. Accepted for publication in the Astrophysical Journal (ApJ)
A novel online multi-label classifier for high-speed streaming data applications
Creators: name: Venkatesan, Rajasekar
name: Er, Meng Joo
name: Dave, Mihika
name: Pratama, Mahardhika
name: Wu, Shiqian
Publisher: name: arXiv
Year: 2016
Subjects: subject: Machine Learning (cs.LG)
subject: Artificial Intelligence (cs.AI)
subject: Neural and Evolutionary Computing (cs.NE)
subject: FOS: Computer and information sciences

description: In this paper, a high-speed online neural network classifier based on extreme learning machines for multi-label classification is proposed. In multi-label classification, each of the input data sample belongs to one or more than one of the target labels. The traditional binary and multi-class classification where each sample belongs to only one target class forms the subset of multi-label classification. Multi-label classification problems are far more complex than binary and multi-class classification problems, as both the number of target labels and each of the target labels corresponding to each of the input samples are to be identified. The proposed work exploits the high-speed nature of the extreme learning machines to achieve real-time multi-label classification of streaming data. A new threshold-based online sequential learning algorithm is proposed for high speed and streaming data classification of multi-label problems. The proposed method is experimented with six different datasets from different application domains such as multimedia, text, and biology. The hamming loss, accuracy, training time and testing time of the proposed technique is compared with nine different state-of-the-art methods. Experimental studies shows that the proposed technique outperforms the existing multi-label classifiers in terms of performance and speed.
description: 18 pages, 7 tables, 3 figures. arXiv admin note: text overlap with arXiv:1608.08898
Magnetic MoS2 Interface Monolayer on CdS Nanowire by Cation Exchange
Creators: name: Tan, Chih-Shan
name: Lu, Yu-Jung
name: Chen, Chun-Chi
name: Liu, Pei-Hsuan
name: Gwo, Shangjr
name: Guo, Guang-Yu
name: Chen, Lih-Juann
Publisher: name: arXiv
Year: 2016
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: MoS2 atomic layers have recently attracted much interest because of their two-dimensional structure as well as tunable optical, electrical, and mechanical properties for next generation electronic and electro-optical devices. Here we have achieved facile fabrication of MoS2 thin films on CdS nanowires by cation exchange in solution at room temperature and importantly observed their extraordinary magnetic properties. We establish the atomic structure of the MoS2/CdS heterostructure by taking atomic images of the MoS2/CdS interface as well as performing first-principles density functional geometry optimizations and STEM-ADF image simulations. Furthermore, our first principles density functional calculations for the MoS2/CdS heterostructure reveal that the magnetism in the MoS2/CdS heterostructure stems from the ferromagnetic MoS2 monolayer next to the MoS2/CdS interface. The ferromagnetism is attributed to the partial occupation of the Mo dx2-y2/dxy conduction band in the interfacial MoS2 monolayer caused by the mixed covalent-ionic bonding among the MoS2 and CdS monolayers near the MoS2/CdS interface. The present findings of the ferromagnetic MoS2 monolayer with large spin polarization at the MoS2-semiconductor interface suggest a new route for fabrication of the transition metal dichalcogenide-based magnetic semiconductor multilayers for applications in spintronic devices.
Toral and spherical Aluthge transforms of $2$-variable weighted shifts
Creators: name: Curto, Raul E.
name: Yon, Jasang
Publisher: name: arXiv
Year: 2016
Subjects: subject: Functional Analysis (math.FA)
subject: FOS: Mathematics
subject: 47

description: We introduce two natural notions of Aluthge transforms (toral and spherical) for 2-variable weighted shifts and study their basic properties. Next, we study the class of spherically quasinormal $2$-variable weighted shifts, which are the fixed points for the spherical Aluthge transform. Finally, we briefly discuss the relation between spherically quasinormal and spherically isometric 2-variable weighted shifts.
description: Accepted for publication by C.R. Acad. Sci. Paris, Ser. I (2016)
The large-mass limit of cloudy black holes
Creators: name: Hod, Shahar
Publisher: name: arXiv
Year: 2016
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: The interplay between black holes and fundamental fields has attracted much attention over the years from both physicists and mathematicians. In this paper we study {\it analytically} a physical system which is composed of massive scalar fields linearly coupled to a rapidly-rotating Kerr black hole. Using simple arguments, we first show that the coupled black-hole-scalar-field system may possess stationary bound-state resonances (stationary scalar `clouds') in the bounded regime $1
description: 21 pages. Invited contribution to the Focus Issue on "Black holes and fundamental fields", Classical and Quantum Gravity
Soft QGP probes with ALICE
Creators: name: Graczykowski, Łukasz Kamil
Publisher: name: arXiv
Year: 2016
Subjects: subject: Nuclear Experiment (nucl-ex)
subject: FOS: Physical sciences

description: In heavy-ion collisions at the LHC a hot and dense medium of deconfided partons, the Quark-Gluon Plasma (QGP), is created. Its global properties can be characterized by the measurements of particles in the low transverse momentum (or "soft") regime, which represent the majority of created particles. In this report we outline a selection of measurements of the soft probes by the ALICE experiment in pp, p--Pb, and Pb--Pb collisions. The paper focuses on recent flow measurements via angular correlations and femtoscopic studies. The first ever preliminary analysis of $\mathrm{K}^0_{\rm S}\mathrm{K}^{\pm}$ femtoscopy is also presented.
description: 16 pages, 13 figures, proceedings of Cracow Epiphany Conference on the Physics in LHC Run 2
Review of the theoretical description of time-resolved angle-resolved photoemission spectroscopy in electron-phonon mediated superconductors
Creators: name: Kemper, A. F.
name: Sentef, M. A.
name: Moritz, B.
name: Devereaux, T. P.
name: Freericks, J. K.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: We review recent work on the theory for pump/probe photoemission spectroscopy of electron-phonon mediated superconductors in both the normal and the superconducting states. We describe the formal developments that allow one to solve the Migdal-Eliashberg theory in nonequilibrium for an ultrashort laser pumping field, and explore the solutions which illustrate the relaxation as energy is transferred from electrons to phonons. We focus on exact results emanating from sum rules and approximate numerical results which describe rules of thumb for relaxation processes. In addition, in the superconducting state, we describe how Higg's oscillations can be excited due to the nonlinear coupling with the electric field and how pumping the system can enhance superconductivity.
description: 12 pages, 14 figures, submitted to special issue of Annalen der Physik
L shell x-ray production in high-Z elements using 4-6 MeV/u fluorine ions
Creators: name: Kumar, Sunil
name: Singh, Udai
name: Oswal, M.
name: Singh, G.
name: Singh, N.
name: Mehta, D.
name: Lapicki, G.
name: Nandi, T.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Atomic Physics (physics.atom-ph)
subject: FOS: Physical sciences

description: L shell line and total x-ray production cross sections in 78Pt, 79Au, 82Pb, 83Bi, 90Th, and 92U targets ionized by 4-6 MeV/u fluorine ions were measured. These cross sections are compared with available theories for L shell ionization using single- and multiple-hole fluorescence and the Coster-Kronig yields. The ECPSSR and the ECUSAR theories exhibit good agreement with the measured data, whereas, the FBA theory overestimates them by a factor of two. Although for the F ion charge states q = 6-8 the multiple-hole atomic parameters do not significantly differ from the single-hole values, after an account for the multiple-holes, our data are better in agreement with the ECUSAR than the ECPSSR theory.
description: 32 pages,7 figures
Morphology of Open Clusters NGC 1857 and Czernik 20 using Clustering Algorithms
Creators: name: Bhattacharya, Souradeep
name: Mahulkar, Vedant
name: Pandaokar, Samay
name: Singh, Parikshit Kishor
Publisher: name: arXiv
Year: 2016
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: The morphology and cluster membership of the Galactic open clusters - Czernik 20 and NGC 1857 were analyzed using two different clustering algorithms. We present the maiden use of density-based spatial clustering of applications with noise (DBSCAN) to determine open cluster morphology from spatial distribution. The region of analysis has also been spatially classified using a statistical membership determination algorithm. We utilized near infrared (NIR) data for a suitably large region around the clusters from the United Kingdom Infrared Deep Sky Survey Galactic Plane Survey star catalogue database, and also from the Two Micron All Sky Survey star catalogue database. The densest regions of the cluster morphologies (1 for Czernik 20 and 2 for NGC 1857) thus identified were analyzed with a K-band extinction map and color-magnitude diagrams (CMDs). To address significant discrepancy in known distance and reddening parameters, we carried out field decontamination of these CMDs and subsequent isochrone fitting of the cleaned CMDs to obtain reliable distance and reddening parameters for the clusters (Czernik 20: D = 2900 pc; E(J-K) = 0.33; NGC 1857: D = 2400 pc; E(J-K) = 0.18-0.19). The isochrones were also used to convert the luminosity functions for the densest regions of Czernik 20 and NGC 1857 into mass function, to derive their slopes. Additionally, a previously unknown over-density consistent with that of a star cluster is identified in the region of analysis.
description: 16 pages, 10 figures, 1 table, Accepted for publication in Astronomy and Computing
Three Temperate Neptunes Orbiting Nearby Stars
Creators: name: Fulton, Benjamin J.
name: Howard, Andrew W.
name: Weiss, Lauren M.
name: Sinukoff, Evan
name: Petigura, Erik A.
name: Isaacson, Howard
name: Hirsch, Lea
name: Marcy, Geoffrey W.
name: Henry, Gregory W.
name: Grunblatt, Samuel K.
name: Huber, Daniel
name: von Braun, Kaspar
name: Boyajian, Tabetha S.
name: Kane, Stephen R.
name: Wittrock, Justin
name: Horch, Elliott P.
name: Ciardi, David R.
name: Howell, Steve B.
name: Wright, Jason T.
name: Ford, Eric B.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: FOS: Physical sciences

description: We present the discovery of three modestly-irradiated, roughly Neptune-mass planets orbiting three nearby Solar-type stars. HD 42618 b has a minimum mass of $15.4 \pm 2.4$ M$_{\oplus}$, a semi-major axis of 0.55 AU, an equilibrium temperature of 337 K, and is the first planet discovered to orbit the solar analogue host star, HD 42618. We also discover new planets orbiting the known exoplanet host stars HD 164922 and HD 143761 ($ρ$ CrB). The new planet orbiting HD 164922 has a minimum mass of $12.9 \pm 1.6$ M$_{\oplus}$ and orbits interior to the previously known Jovian mass planet orbiting at 2.1 AU. HD 164922 c has a semi-major axis of 0.34 AU and an equilibrium temperature of 418 K. HD 143761 c orbits with a semi-major axis of 0.44 AU, has a minimum mass of $25 \pm 2$ M$_{\oplus}$, and is the warmest of the three new planets with an equilibrium temperature of 445 K. It orbits exterior to the previously known warm Jupiter in the system. A transit search using space-based CoRoT data and ground-based photometry from the Automated Photometric Telescopes (APTs) at Fairborn Observatory failed to detect any transits, but the precise, high-cadence APT photometry helped to disentangle planetary-reflex motion from stellar activity. These planets were discovered as part of an ongoing radial velocity survey of bright, nearby, chromospherically-inactive stars using the Automated Planet Finder (APF) telescope at Lick Observatory. The high-cadence APF data combined with nearly two decades of radial velocity data from Keck Observatory and gives unprecedented sensitivity to both short-period low-mass, and long-period intermediate-mass planets.
description: Revisions submitted to ApJ
Mapping Narrations - Narrating Maps
Concepts of the World in the Middle Ages and the Early Modern Period
Creators: name: Baumgärtner, Ingrid
Publisher: name: Universität Kassel
Year: 2022
Subjects: subject: Frühe Neuzeit
subject: Reiseliteratur
subject: Kartographie
subject: Mittelalter
subject: 900
subject: Mittelalter
subject: Frühe Neuzeit
subject: Kartografie
subject: Reiseliteratur

description: Gefördert durch den Publikationsfonds der Universität Kassel
AGN feedback in the nucleus of M51
Creators: name: Querejeta, M.
name: Schinnerer, E.
name: García-Burillo, S.
name: Bigiel, F.
name: Blanc, G. A.
name: Colombo, D.
name: Hughes, A.
name: Kreckel, K.
name: Leroy, A. K.
name: Meidt, S. E.
name: Meier, D. S.
name: Pety, J.
name: Sliwa, K.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: AGN feedback is invoked as one of the most relevant mechanisms that shape the evolution of galaxies. Our goal is to understand the interplay between AGN feedback and the interstellar medium in M51, a nearby spiral galaxy with a modest AGN and a kpc-scale radio jet expanding through the disc of the galaxy. For that purpose, we combine molecular gas observations in the CO(1-0) and HCN(1-0) lines from the Plateau de Bure interferometer with archival radio, X-ray, and optical data. We show that there is a significant scarcity of CO emission in the ionisation cone, while molecular gas emission tends to accumulate towards the edges of the cone. The distribution and kinematics of CO and HCN line emission reveal AGN feedback effects out to r~500pc, covering the whole extent of the radio jet, with complex kinematics in the molecular gas which displays strong local variations. We propose that this is the result of the almost coplanar jet pushing on molecular gas in different directions as it expands; the effects are more pronounced in HCN than in CO emission, probably as the result of radiative shocks. Following previous interpretation of the redshifted molecular line in the central 5" as caused by a molecular outflow, we estimate the outflow rates to be Mdot_H2~0.9Msun/yr and Mdot_dense~0.6Msun/yr, which are comparable to the molecular inflow rates (~1Msun/yr); gas inflow and AGN feedback could be mutually regulated processes. The agreement with findings in other nearby radio galaxies suggests that this is not an isolated case, and probably the paradigm of AGN feedback through radio jets, at least for galaxies hosting low-luminosity active nuclei.
description: 21 pages, 17 figures, accepted for publication in A&A
The Wheat Outlook
Creators: name: Post, Robert E.
Publisher: name: Unknown
Year: 1947
Subjects: Consumer/Household Economics
Demand and Price Analysis
International Relations/Trade

description: Export Situation – Domestic Situation to Date – Effect of the Drought and the 1948-49 Outlook – Prospects Beyond 1948-49 – Price Situation and Outlook
description: Address by Robert E. Post, Agricultural Economic Statistician at the 26th [i.e., 25th] Annual Agricultural Outlook Conference, Washington 25, D.C., November 5, 1947.
Heisenberg-limited Sagnac Interferometer with Multi-particle States
Creators: name: Luo, Chengyi
name: Huang, Jiahao
name: Zhang, Xiangdong
name: Lee, Chaohong
Publisher: name: arXiv
Year: 2016
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: The Sagnac interferometry has been widely used to measure rotation frequency. Beyond the conventional single-particle Sagnac interferometry, we propose an atomic Sagnac interferometry via multi-particle entangled states. In our scheme, an ensemble of entangled two-state Bose atoms are moved in a ring by a state-dependent rotating potential and then are recombined for interference via Ramsey pulses after a specific time determined by the state-dependent rotating potential. The ultimate rotation sensitivity can be improved to the Heisenberg limit if the initial internal degrees of freedom are entangled. By implementing parity measurement, the ultimate measurement precision can be saturated and the achieved measurement precisions approach to the Heisenberg limit. Our results provide a promising way to exploit many-body quantum entanglement in precision metrology of rotation sensing.
description: 9 pages, 4 figures
Onset of oligarchic growth and implication for accretion histories of dwarf planets
Creators: name: Morishima, Ryuji
Publisher: name: arXiv
Year: 2016
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: FOS: Physical sciences

description: We investigate planetary accretion that starts from equal-mass planetesimals using an analytic theory and numerical simulations. We particularly focus on how the planetary mass $M_{\rm oli}$ at the onset of oligarchic growth depends on the initial mass $m_0$ of a planetesimal. Oligarchic growth commences when the velocity dispersion relative to the Hill velocity of the protoplanet takes its minimum. We find that if $m_0$ is small enough, this normalized velocity dispersion becomes as low as unity during the intermediate stage between the runaway and oligarchic growth stages. In this case, $M_{\rm oli}$ is independent of $m_0$. If $m_0$ is large, on the other hand, oligarchic growth commences directly after runaway growth, and $M_{\rm oli} \propto m_0^{3/7}$. The planetary mass $M_{\rm oli}$ for the solid surface density of the Minimum Mass Solar Nebula is close to the masses of the dwarf planets in a reasonable range of $m_0$. This indicates that they are likely to be the largest remnant planetesimals that failed to become planets. The power-law exponent $q$ of the differential mass distribution of remnant planetesimals is typically $-2.0$ and $-2.7$ to $-2.5$ for small and large $m_0$. The slope, $q \simeq -2.7$, and the bump at $10^{21}$ g (or 50 km in radius) for the mass distribution of hot Kuiper belt objects are reproduced if $m_0$ is the bump mass. On the other hand, small initial planetesimals with $m_0 \sim 10^{13}$ g or less are favored to explain the slope of large asteroids, $q \simeq -2.0$, while the bump at $10^{21}$ g can be reproduced by introducing a small number of asteroid seeds each with mass of $10^{19} $ g.
description: 34 pages, 10 figures, accepted for publication in Icarus
Quantum Information as a Measure of Multipartite Correlation
Creators: name: Phoenix, Simon James Daniel
Publisher: name: arXiv
Year: 2016
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: The mutual information has been successfully used as a measure of correlation strength between quantum systems, especially for bipartite systems. Here we examine the use of this measure for multipartite quantum systems. For system of qubits we find that the difference between `classical' and `quantum' regimes of correlation strength amounts to just 1 bit of information, at most. We show that the information content of a correlation can be expanded into correlations between pairwise components and demonstrate that in terms of this information-based measure of correlation the GHZ states are the only states that simultaneously optimize these pairwise correlations for systems of qubits.
The slow spin of the young sub-stellar companion GQ Lupi b and its orbital configuration
Creators: name: Schwarz, Henriette
name: Ginski, Christian
name: de Kok, Remco J.
name: Snellen, Ignas A. G.
name: Brogi, Matteo
name: Birkby, Jayne L.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: FOS: Physical sciences

description: The spin of a planet or brown dwarf is related to the accretion process, and therefore studying spin can help promote our understanding of the formation of such objects. We present the projected rotational velocity of the young sub-stellar companion GQ Lupi b, along with its barycentric radial velocity. The directly imaged exoplanet or brown dwarf companion joins a small but growing ensemble of wide-orbit sub-stellar companions with a spin measurement. The GQ Lupi system was observed at high spectral resolution (R ~ 100000), and in the analysis we made use of both spectral and spatial filtering to separate the signal of the companion from that of the host star. We detect both CO (S/N=11.6) and H2O (S/N=7.7) in the atmosphere of GQ Lupi b by cross-correlating with model spectra, and we find it to be a slow rotator with a projected rotational velocity of $5.3^{+0.9}_{-1.0}$ km/s. The slow rotation is most likely due to its young age of < 5 Myr, as it is still in the process of accreting material and angular momentum. We measure the barycentric radial velocity of GQ Lupi b to be $2.0 \pm 0.4$ km/s, and discuss the allowed orbital configurations and their implications for formation scenarios for GQ Lupi b.
description: 11 pages, 9 figures. Accepted for publication in Astronomy and Astrophysics
Universal stability of two-dimensional traditional semiconductors
Creators: name: Lucking, Michael C.
name: Xie, Weiyu
name: Choe, Duk-Hyun
name: West, Damien
name: Lu, Toh-Ming
name: Zhang, S. B.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: Interest in two dimensional materials has exploded in recent years. Not only are they studied due to their novel electronic properties, such as the emergent Dirac Fermion in graphene, but also as a new paradigm in which stacking layers of distinct two dimensional materials may enable different functionality or devices. Here, through first-principles theory, we reveal a large new class of two dimensional materials which are derived from traditional III-V, II-VI, and I-VII semiconductors. It is found that in the ultra-thin limit all of the traditional binary semi-conductors studied (a series of 26 semiconductors) stabilize in a two dimensional double layer honeycomb (DLHC) structure, as opposed to the wurtzite or zinc-blende structures associated with three dimensional bulk. Not only does this greatly increase the landscape of two-dimensional materials, but it is shown that in the double layer honeycomb form, even ordinary semiconductors, such as GaAs, can exhibit exotic topological properties.
Definitive Test of the R_h=ct Universe Using Redshift Drift
Creators: name: Melia, Fulvio
Publisher: name: arXiv
Year: 2016
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: The redshift drift of objects moving in the Hubble flow has been proposed as a powerful model-independent probe of the underlying cosmology. A measurement of the first and second order redshift derivatives appears to be well within the reach of upcoming surveys using ELT-HIRES and the SKA Phase 2 array. Here we show that an unambiguous prediction of the R_h=ct cosmology is zero drift at all redshifts, contrasting sharply with all other models in which the expansion rate is variable. For example, multi-year monitoring of sources at redshift z=5 with the ELT-HIRES is expected to show a velocity shift Delta v = -15 cm/s/yr due to the redshift drift in Planck LCDM, while Delta v=0 cm/s/yr in R_h=ct. With an anticipated ELT-HIRES measurement error of +/-5 cm/s/yr after 5 years, these upcoming redshift drift measurements might therefore be able to differentiate between R_h=ct and Planck LCDM at ~3 sigma, assuming that any possible source evolution is well understood. Such a result would provide the strongest evidence yet in favour of the R_h=ct cosmology. With a 20-year baseline, these observations could favor one of these models over the other at better than 5 sigma.
description: 7 pages, 1 figure. Accepted for publication in MNRAS Letters
Cold-Mode Accretion: Driving the Fundamental Mass-Metallicity Relation at z~2
Creators: name: Kacprzak, Glenn G.
name: van de Voort, Freeke
name: Glazebrook, Karl
name: Tran, Kim-Vy H.
name: Yuan, Tiantian
name: Nanayakkara, Themiya
name: Allen, Rebecca J.
name: Alcorn, Leo
name: Cowley, Michael
name: Labbe, Ivo
name: Spitler, Lee
name: Straatman, Caroline
name: Tomczak, Adam
Publisher: name: arXiv
Year: 2016
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: We investigate the star formation rate (SFR) dependence on the stellar mass and gas-phase metallicity relation at z=2 with MOSFIRE/Keck as part of the ZFIRE survey. We have identified 117 galaxies (1.98 < z < 2.56), with $8.9\leq$log(M/M$_{\odot}$)$\leq11.0$, for which we can measure gas-phase metallicities. For the first time, we show discernible difference between the mass-metallicity relation, using individual galaxies, when deviding the sample by low ($<10$~M$_{\odot}$yr$^{-1}$) and high ($>10$~M$_{\odot}$yr$^{-1}$) SFRs. At fixed mass, low star-forming galaxies tend to have higher metallicity than high star-forming galaxies. Using a few basic assumptions, we further show that the gas masses and metallicities required to produce the fundamental mass--metallicity relation, and its intrinsic scatter, are consistent with cold-mode accretion predictions obtained from the OWLS hydrodynamical simulations. Our results from both simulations and observations are suggestive that cold-mode accretion is responsible for the fundamental mass-metallicity relation at $z=2$ and demonstrates the direct relationship between cosmological accretion and the fundamental properties of galaxies.
description: 6 pages, 3 figures; accepted for publication in ApJ Letters
Articulation Points in Complex Networks
Creators: name: Tian, Liang
name: Bashan, Amir
name: Shi, Da-Ning
name: Liu, Yang-Yu
Publisher: name: arXiv
Year: 2016
Subjects: subject: Physics and Society (physics.soc-ph)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: An articulation point in a network is a node whose removal disconnects the network. Those nodes play key roles in ensuring connectivity of many real-world networks, from infrastructure networks to protein interaction networks and terrorist communication networks. Despite their fundamental importance, a general framework of studying articulation points in complex networks is lacking. Here we develop analytical tools to study key issues pertinent to articulation points, e.g. the expected number of them and the network vulnerability against their removal, in an arbitrary complex network. We find that a greedy articulation point removal process provides us a novel perspective on the organizational principles of complex networks. Moreover, this process is associated with two fundamentally different types of percolation transitions with a rich phase diagram. Our results shed light on the design of more resilient infrastructure networks and the effective destruction of terrorist communication networks.
description: 51 pages, 16 figures
Superconducting energy gap of $2H$-NbSe$_2$ in phonon spectroscopy
Creators: name: Weber, F.
name: Rosenkranz, S.
name: Heid, R.
name: Said, A. H.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: We present a high energy-resolution inelastic x-ray scattering data investigation of the charge-density-wave (CDW) soft phonon mode upon entering the superconducting state in $2H$-NbSe$_2$. Measurements were done close to the CDW ordering wavevector $\mathbf{q}_{CDW}$ at $\mathbf{q}=\mathbf{q}_{CDW}+(0,0,l)$,$0.15\leq l \leq 0.5$, for $T=10\,\rm{K}$ (CDW order) and $3.8\,\rm{K}$ (CDW order + superconductivity). We observe changes of the phonon lineshape that are characteristic for systems with strong electron-phonon coupling in the presence of a superconducting energy gap $2Δ_c$ and from which we can demonstrate an $l$-dependence of the superconducting gap. Reversely, our data imply that the CDW energy gap is strongly localized along the $c^*$ direction. The confinement of the CDW gap to a very small momentum region explains the rather low competition and easy coexistence of CDW order and superconductivity in $2H$-NbSe$_2$. However, the energy gained by opening $Δ_{CDW}$ seems to be too small to be the driving force of the phase transition at $T_{CDW}=33\,\rm{K}$ , which is better described as an electron-phonon coupling driven structural phase transition.
Master's thesis recital (flute)
Creators: name: MacDonald, Annabel
Publisher: name: The University of Texas at Austin
Year: 2023
Subjects: Flute music
Flute and piano music
Flute and guitar music.
Chamber music

description: Andalucia / Busser -- Toward the sea / Takemitsu -- Chant de linos / Jolivet -- Il fervore / Tsontakis -- Armenian folk song / Bingyol -- Syrinx / Debussy
Soils Developed in Freshwater Marl Sediments in The Hagerstown (Great) Limestone Valley
Creators: name: Shaw, Joey N.
Publisher: name: Digital Repository at the University of Maryland
Year: 1993

description: Certain calcareous soils occupying alluvial landscape positions in the Hagerstown (Great) limestone valley of western Maryland have developed from highly calcareous ( 60-100g/100g) marl sediments of Holocene age which range in depth from .5m to over 8m. These marlderived soils have a high pH ( 7. 5-8. 5) , low bulk density, and high porosity (0.5 to 0.6). The carbonate in the marl was developed from inorganic and biogenic processes. The marl was formed in now extinct ponds which had inundated alluvial landscape positions during parts of the Holocene period. Certain algae capable of accumulating carbonate internally and externally developed the majority of the marl. Pedogenic processes have transformed the marl sediments into highly calcareous Mollisols. The presence of buried surface horizons and coarse (> fine sand) carbonate forms render classification of these soils problematic. The coarse carbonate forms were mainly biogenic deposits, but these carbonates have been altered sufficiently by coating with pedogenic carbonate to identify calcic horizons. The drainage class is difficult to interpret as a result of the gleyed appearance of the marl sediments (chroma <3) and the high pH of these soils which inhibits Fe oxide reduction. Most of the marl-derived soils (70%) are better drained than the previous classification indicates. These soils have been mapped in the Great Valley in units named for the warners series (fine-silty, carbonatic, mesic Fluvaquentic Haplaquolls) and the Massenet ta series (fine-loamy, carbonatic, mesic, Fluvaquentic Hapludolls). However, proper classification may place these soils in the Typic Calciudolls subgroup. Some soils originally mapped in the very poorly drained Dunning units are very poorly drained marl-derived soils.
The Shipwreck Paintings of Joseph Vernet: An Iconographic Study
Creators: name: Stevens, Adele De Werff
Publisher: name: Digital Repository at the University of Maryland
Year: 1975

description: The theme of storm and shipwreck was a popular one in eighteenth-century literature, music, opera, and plays as well as in painting. Joseph Vernet (1714-1789) used this theme and became renowned for his paintings of tempest and shipwreck. For fifty-five years, Joseph Vernet's paintings of a coastal shipwreck attracted an international clientele. For them he depicted a vivid variety of clouds, turbulent seas, disabled ships, and the viscissitudes of the living and the dead. Trained by the followers of Pierre Puget in marine painting in Provence, Vernet had observed a tempest during his voyage from Marseille to Civitavecchia in 1734. For the figures in his paintings Vernet drew on the traditional motives of marine and Christian art. Other pictorial sources were the works of Salvator Rosa, Claude Gelee, Adam Elsheimer, and Tempesta, but his observation of nature and "on the spot" sketches were the basis of his paintings. A shipwreck scene often was one of the series of of the four times of day. Vernet's paintings in Italy mingled the post-shipwreck activities with other seaside pursuits in a spacious landscape. After his move to France in 1753, Vernet emphasized the rescue of people. Shipwrecked families were his contribution to the portrayal of drama in family life, which was an important current in art in the middle of the eighteenth century. During his last decade, Vernet's shipwreck scenes featured a closer connection among the persons depicted. He also showed a more compact, wellkept version of the edifice, which stands above the wrecked vessel. Throughout his career Vernet limited the violence in his shipwreck scenes to the forces of nature while portraying the noble behavior of ordinary people.
Fiscalização de serviços contínuos de dedicação exclusiva: propostas de melhorias aos manuais de fiscalização nas universidades federais
Creators: name: Dantas, Isabela
name: Barbosa Agata, Priscila
name: Araújo Lima, Danielli
name: Garcia, Luan Augusto Alves
name: de Castro Melo, Daniela
Publisher: name: figshare
Year: 2023
Subjects: Business analytics

description: A Reforma do Estado Burocrático para o Estado Moderno visou à desburocratização. Neste sentido, surge a terceirização das atividades-meio, como uma forma de concentrar esforços do Estado em suas funções finalísticas. No entanto, as atividades terceirizadas devem ser fiscalizadas pelo ente público, sobretudo aquelas que envolvem prestações de serviços contínuos com dedicação de mão de obra exclusiva, situação em que o ente público tem responsabilidade subsidiária. É neste cenário que surge a figura dos fiscais, sejam eles técnicos ou administrativos, que são de suma importância para assegurar a eficiência e a supremacia do interesse público. Esta pesquisa propõe melhorias aos manuais de fiscalização, ferramentas para a capacitação dos fiscais, dispostos nos sites eletrônicos de universidades federais mineiras, cada uma delas em relação a 21 requisitos específicos e registrando o número de requisitos atendidos para cada uma. Como metodologia, adotou-se, principalmente, pesquisa documental sob uma análise qualitativa. As universidades apresentaram variação significativa na quantidade de requisitos atendidos. Os requisitos mais atendidos envolvem orientações sobre a atuação do fiscal e disponibilização de manuais e guias, enquanto que os menos atendidos estão relacionados aos procedimentos de fiscalização preventiva, rotineira e sistemática. Como resultados, foram propostas 6 melhorias a estes manuais. A análise pode ser útil para identificar áreas de melhoria na fiscalização de contratos e destaca a importância de estabelecer padrões claros e objetivos para garantir transparência e efetividade.
Male sex identified by global COVID-19 meta-analysis as a risk factor for death and ITU admission.
Creators: name: Peckham, Hannah
name: de Gruijter, Nina M
name: Raine, Charles
name: Radziszewska, Anna
name: Ciurtin, Coziana
name: Wedderburn, Lucy R
name: Rosser, Elizabeth C
name: Webb, Kate
name: Deakin, Claire T
Publisher: name: The Francis Crick Institute
Year: 2021
Subjects: Infectious Disease

description: Anecdotal evidence suggests that Coronavirus disease 2019 (COVID-19), caused by the coronavirus SARS-CoV-2, exhibits differences in morbidity and mortality between sexes. Here, we present a meta-analysis of 3,111,714 reported global cases to demonstrate that, whilst there is no difference in the proportion of males and females with confirmed COVID-19, male patients have almost three times the odds of requiring intensive treatment unit (ITU) admission (OR = 2.84; 95% CI = 2.06, 3.92) and higher odds of death (OR = 1.39; 95% CI = 1.31, 1.47) compared to females. With few exceptions, the sex bias observed in COVID-19 is a worldwide phenomenon. An appreciation of how sex is influencing COVID-19 outcomes will have important implications for clinical management and mitigation strategies for this disease.
Asian Basket Options with Individually Capped Returns
Creators: name: Lee, David
Publisher: name: Zenodo
Year: 2022
Subjects: Asian Basket Options with Individually Capped Returns

description: A model is presented for pricing Asian basket options with individually capped returns. Crude Monte Carlo method is employed to value the derivatives. Each asset return is capped with a rate. Volatility smile is utilized in the calculation.
description: https://ia904700.us.archive.org/14/items/bondAmericanOption/bondAmericanOption.pdf
Image segmentation based on histogram of depth and an application in driver distraction detection
Creators: name: Dinh, Tran Hiep
name: Pham, Minh Trien
name: Phung, Manh Duong
name: Nguyen, Duc Manh
name: Hoang, Van Manh
name: Tran, Quang Vinh
Publisher: name: arXiv
Year: 2016
Subjects: subject: Computer Vision and Pattern Recognition (cs.CV)
subject: FOS: Computer and information sciences

description: This study proposes an approach to segment human object from a depth image based on histogram of depth values. The region of interest is first extracted based on a predefined threshold for histogram regions. A region growing process is then employed to separate multiple human bodies with the same depth interval. Our contribution is the identification of an adaptive growth threshold based on the detected histogram region. To demonstrate the effectiveness of the proposed method, an application in driver distraction detection was introduced. After successfully extracting the driver's position inside the car, we came up with a simple solution to track the driver motion. With the analysis of the difference between initial and current frame, a change of cluster position or depth value in the interested region, which cross the preset threshold, is considered as a distracted activity. The experiment results demonstrated the success of the algorithm in detecting typical distracted driving activities such as using phone for calling or texting, adjusting internal devices and drinking in real time.
description: 6 pages In 13th International Conference on Control Automation Robotics & Vision (ICARCV), 2014