cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Optimal Rate Code Constructions for Computationally Simple Channels
Creators: name: Venkatesan  Guruswami
name: Smith, Adam
Publisher: name: Carnegie Mellon University
Year: 2007
Subjects: subject: 89999 Information and Computing Sciences not elsewhere classified
subject: FOS: Computer and information sciences

description: We consider coding schemes for computationally bounded channels, which can introduce an arbitrary set of errors as long as (a) the fraction of errors is bounded with high probability by a parameter p and (b) the process which adds the errors can be described by a sufficiently “simple” circuit. Codes for such channel models are attractive since, like codes for standard adversarial errors, they can handle channels whose true behavior is unknown or varying over time. For two classes of channels, we provide explicit, efficiently encodable/decodable codes of optimal rate where only inefficiently decodable codes were previously known. In each case, we provide one encoder/decoder that works for every channel in the class. The encoders are randomized, and probabilities are taken over the (local, unknown to the decoder) coins of the encoder and those of the channel. Unique decoding for additive errors: We give the first construction of a polynomial-time encodable/decodable code for additive (a.k.a. oblivious) channels that achieve the Shannon capacity 1−H(p). These are channels which add an arbitrary error vector e ∈ {0, 1} N of weight at most pN to the transmitted word; the vector e can depend on the code but not on the particular transmitted word. Such channels capture binary symmetric errors and burst errors as special cases. List-decoding for polynomial-time channels: For every constant c > 0, we give a Monte Carlo construction of an code with optimal rate (arbitrarily close to 1−H(p)) that efficiently recovers a short list containing the correct message with high probability for channels describable by circuits of size at most Nc . We are not aware of any channel models considered in the information theory literature, other than purely adversarial channels, which require more than linear-size circuits to implement. We justify the relaxation to list-decoding with an impossibility result showing that, in a large range of parameters (p > 1/4), codes that are uniquely decodable for a modest class of channels (online, memoryless, nonuniform channels) cannot have positive rate.
On $(α_n)$-regular sets
Creators: name: Ojala, Tuomo
Publisher: name: arXiv
Year: 2013
Subjects: subject: Classical Analysis and ODEs (math.CA)
subject: FOS: Mathematics
subject: Primary 28A12. Secondary 30L10

description: We define $(α_n)$ -regular sets in uniformly perfect metric spaces. This definition is quasisymmetrically invariant and the construction resembles generalized dyadic cubes in metric spaces. For these sets we then determine the necessary and sufficient conditions to be fat (or thin). In addition we discuss restrictions of doubling measures to these sets, and in particular give a sufficient condition to retain at least some of the restricted measures doubling on the set. Our main result generalizes and extends analogous results that were previously known to hold in the real-line.
description: 18 pages, 2 figures
Origin of efficient thermoelectric performance in half-Heusler FeNb$_{0.8}$Ti$_{0.2}$Sb
Creators: name: Pang, Hong-Jie
name: Fu, Chen-Guang
name: Yu, Hao
name: Chen, Liu-Cheng
name: Zhu, Tie-Jun
name: Chen, Xiao-Jia
Publisher: name: arXiv
Year: 2018
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: A half-Heusler material FeNb$_{0.8}$Ti$_{0.2}$Sb has been identified as a promising thermoelectric material due to its excellent thermoelectric performance at high temperatures. The origins of the efficient thermoelectric performance are investigated through a series of low-temperature (2 - 400 K) measurements. The high data coherence of the low and high temperatures is observed. An optimal and nearly temperature-independent carrier concentration is identified, which is ideal for the power factor. The obtained single type of hole carrier is also beneficial to the large Seebeck coefficient. The electronic thermal conductivity is found to be comparable to the lattice thermal conductivity and becomes the dominant component above 200 K. These findings again indicate that electron scattering plays a key role in the electrical and thermal transport properties. The dimensionless figure of merit is thus mainly governed by the electronic properties. These effects obtained at low temperatures with the avoidance of possible thermal fluctuations together offer the physical origin for the excellent thermoelectric performance in this material.
description: 8 pages, 7 figures
Some numerical studies of the evolution of generalized parton distributions
Creators: name: Diehl, Markus
name: Kugler, Wolfgang
Publisher: name: arXiv
Year: 2007
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We study the evolution behavior of generalized parton distributions at small longitudinal momentum fraction. Particular attention is paid to the ratio of a generalized parton distribution and its forward limit, to the mixing between quarks and gluons, and to the dependence on the squared momentum transfer t.
description: 12 pages, 12 figures. v2: added comments on power-law behavior
Fimbria fimbriata
Creators: name: Glover, Emily A.
name: Taylor, John D.
Publisher: name: Zenodo
Year: 2007
Subjects: Biodiversity
Taxonomy
Animalia
Mollusca
Bivalvia
Lucinida
Lucinidae
Fimbria
Fimbria fimbriata

description: Fimbria fimbriata (Linnaeus, 1758)
(Fig. 42)
Venus fimbriata Linnaeus, 1758: 687.
Fimbria fimbriata – Nicol 1950: 83, figs 1, 2, 4, 6, 7.
MATERIAL EXAMINED. — Koumac. 10 stn, 0-15 m, 29 v, 26 live.
Touho. 5 stn, 0-8 m, 8 v, 11 live.
Lifou. 10 stn, 0-45 m, 30 v, 14 live.
Chesterfield Islands. 14 stn, depth range 25- 69 m.
Other New Caledonia. LAGON, 21 stn, from intertidal zone to 48 m. Loyalty Islands. MUSORSTOM 6, stn DW 430, 20°21’S, 166°07’E, 30 m, 3 v. — Stn DW 435, 20°21’S, 166°08’E, 32 m, 1 v; Ouvéa lagoon, 5 sh.
DISTRIBUTION. — Central IWP: Andaman Islands to Marshall Islands, Fiji and Tonga (see Nicol 1950: fig. 9).
DESCRIPTION
As generic diagnosis. L to 106 mm, H to 89 mm, commarginal lamellae closely spaced, often sinuous and dividing. Radial ribs more prominent to anterior and posterior. Juvenile shells (Fig. 42C) are generally longer than high and have more prominent commarginal lamellae and posterior sulcus.
description: Published as part of Glover, Emily A. & Taylor, John D., 2007, Diversity of chemosymbiotic bivalves on coral reefs: Lucinidae (Mollusca, Bivalvia) of New Caledonia and Lifou, pp. 109-181 in Zoosystema 29 (1) on pages 172-173, DOI: 10.5281/zenodo.5392295
Navigation of brain networks
Creators: name: Seguin, Caio
name: Heuvel, Martijn P. van den
name: Zalesky, Andrew
Publisher: name: arXiv
Year: 2018
Subjects: subject: Neurons and Cognition (q-bio.NC)
subject: FOS: Biological sciences

description: Understanding the mechanisms of neural communication in large-scale brain networks remains a major goal in neuroscience. We investigated whether navigation is a parsimonious routing model for connectomics. Navigating a network involves progressing to the next node that is closest in distance to a desired destination. We developed a measure to quantify navigation efficiency and found that connectomes in a range of mammalian species (human, mouse and macaque) can be successfully navigated with near-optimal efficiency (>80% of optimal efficiency for typical connection densities). Rewiring network topology or repositioning network nodes resulted in 45%-60% reductions in navigation performance. Specifically, we found that brain networks cannot be progressively rewired (randomized or clusterized) to result in topologies with significantly improved navigation performance. Navigation was also found to: i) promote a resource-efficient distribution of the information traffic load, potentially relieving communication bottlenecks; and, ii) explain significant variation in functional connectivity. Unlike prevalently studied communication strategies in connectomics, navigation does not mandate biologically unrealistic assumptions about global knowledge of network topology. We conclude that the wiring and spatial embedding of brain networks is conducive to effective decentralized communication. Graph-theoretic studies of the connectome should consider measures of network efficiency and centrality that are consistent with decentralized models of neural communication.
Phenomenological characterisation of semi-holographic non-Fermi liquids
Creators: name: Mukhopadhyay, Ayan
name: Policastro, Giuseppe
Publisher: name: arXiv
Year: 2013
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: We analyse some phenomenological implications of the most general semi-holographic models for non-Fermi liquids that have emerged with inputs from the holographic correspondence. We find generalizations of Landau-Silin equations with few parameters governing thermodynamics, low energy response and collective excitations. We show that even when there is a Fermi surface with well-defined quasi-particle excitations, the collective excitations can behave very differently from Landau's theory.
description: 5+5 pages, 3 figures, expanded supplementary material, published version
Lettre de Antoine Gouan à Jean-François Séguier, 1766-04-24
Creators: name: Gouan, Antoine
name: Gouan, Antoine
Publisher: name: NAKALA - https://nakala.fr (Huma-Num - CNRS)
publisherIdentifier: https://ror.org/04ces3204
publisherIdentifierScheme: ROR
Year: 2022
Subjects: Botanique

description: [fol. 95] Mon cousin Ferry va partir dans le moment et ne me donne que le temps de vous dire deux mots… Imbert, attendu sa maladie vient d’obtenir un ordre du Roi pour que je fasse les demonstrations botaniques à sa place ; je les commencerai lundi. Ergo. Si vous avez à m’envoyer quelque chose, faites les incessament. Je voudrais 1° des umbellifères, surtout celle de l’an passé à fleur jaune, 2° des jaunes plans de l’Anthyllis cytisoide qui était chez M. Boudon, 3° des Ptelea et en un mot ce que vous pouvez me donner et le plus tôt possible. Je vous envoie ici la feuille d’une très belle umbellifère venue de Paris sans nom. Confrontez en la feuille avec les planches. Ne serait-ce l’Attamanta libanotis Linnaei [npn] quae Libanotis apii folio minor. B. Pin. Dites m’en votre sentiment, car cela presse. Elle n’a pas encore fleuri mais je crois qu’elle fleurira cette année.

 Je suis tout à vous

 Gouan

Le 24 avril 1766.

[Il me paraît le Crithmum Pyrenaicum Linn. Sp. Pl. 354. Apium Pyrenaicum Thapsiae facia JRH 305. Les premières feuilles.]

[fol. 95v] [Gouan 29 avril 1766.]
description: Source: [établissement de conservation] Nîmes, Bibliothèque Carré d'Art [cote] ms. 144, fol. 95
Single inclusive jet production and the nuclear modification ratio at very forward rapidity in proton-lead collisions with $\sqrt{s_{NN}}$ = 5.02 TeV
Creators: name: Bury, Marcin
name: Van Haevermaet, Hans
name: Van Hameren, Andreas
name: Van Mechelen, Pierre
name: Kutak, Krzysztof
name: Serino, Mirko
Publisher: name: arXiv
Year: 2017
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We present calculations of single inclusive jet transverse momentum and energy spectra at forward rapidity ($5.2\!
description: 10 pages
A Deep Learning Interpretable Classifier for Diabetic Retinopathy Disease Grading
Creators: name: de la Torre, Jordi
name: Valls, Aida
name: Puig, Domenec
Publisher: name: arXiv
Year: 2017
Subjects: subject: Machine Learning (cs.LG)
subject: Computer Vision and Pattern Recognition (cs.CV)
subject: Machine Learning (stat.ML)
subject: FOS: Computer and information sciences
subject: I.2; I.4; I.5
subject: 68T10

description: Deep neural network models have been proven to be very successful in image classification tasks, also for medical diagnosis, but their main concern is its lack of interpretability. They use to work as intuition machines with high statistical confidence but unable to give interpretable explanations about the reported results. The vast amount of parameters of these models make difficult to infer a rationale interpretation from them. In this paper we present a diabetic retinopathy interpretable classifier able to classify retine images into the different levels of disease severity and of explaining its results by assigning a score for every point in the hidden and input space, evaluating its contribution to the final classification in a linear way. The generated visual maps can be interpreted by an expert in order to compare its own knowledge with the interpretation given by the model.
description: Submitted to Elsevier
Search for Ultra-High Energy WIMPs by detecting neutrino signatures from the earth core
Creators: name: Xu, Ye
Publisher: name: arXiv
Year: 2018
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: I study the possibility of probing Ultra-High Energy (UHE from now on) dark matter particles (>10$^8$ GeV) due to the decay of superheavy dark matter via detection of UHE neutrino signatures from the earth core. The UHE WIMP event rates are estimated at the energies of 100 PeV, and 1 EeV, 10 EeV, 100 EeV and 1 ZeV in JEM-EUSO and at the energy of 1 ZeV in IceCube, respectively. The diffuse neutrino contaminations are also roughly estimated in JEM-EUSO and IceCube. I found that the extreme energy WIMPs can be detected by JEM-EUSO above 1 EeV and by IceCube above 1 ZeV in the $χ$ mass range of 10GeV-200GeV.
description: 13 pages, 8 figures
Liralucina vaubani Glover & Taylor 2007, n. sp.
Creators: name: Glover, Emily A.
name: Taylor, John D.
Publisher: name: Zenodo
Year: 2007
Subjects: Biodiversity
Taxonomy
Animalia
Mollusca
Bivalvia
Lucinida
Lucinidae
Liralucina
Liralucina vaubani

description: Liralucina vaubani n. sp.
(Figs 26D; 29)
TYPE MATERIAL. — Holotype: 1 sh, L 3.2 mm, H 3.1 mm, T 1.5 mm (MNHN).
Paratypes: from type locality, 3 sh and 1 v (BMNH 20050575). —Figured paratypes: from type locality, 2 v, L 2.5 mm, H 2.2 mm; L 2.6 mm, H 2.3 mm (MNHN).
TYPE LOCALITY. — New Caledonia, MUSORSTOM 4, stn DW 149, 19°08’S, 163°23’E, 155 m.
ETYMOLOGY. — After NO Vauban, name of the ship that collected the material.
DISTRIBUTION. — Known only from New Caledonia.
DESCRIPTION
Shell small, white, H to 3.1 mm, L to 3.2 mm, subcircular (H/L 0.97), inflated. Umbones prominent. Sculpture of 22-24 radial ribs. Ribs rounded in profile, occasionally dividing, crossed by regularly spaced, fine commarginal lamellae, ribs are less prominent to posterior. Juvenile shell to c. 500 µm with commarginal lamellae only. Protoconch large (160 µm), rounded, PI 90 µm, smooth, PII with fine growth increments. Lunule long, wide and slightly asymmetric,right part larger.Ligament short, slightly inset. Hinge: LV with two cardinal teeth and large anterior lateral and posterior lateral teeth and sockets. RV with one cardinal tooth and prominent anterior and posterior lateral teeth. Anterior adductor scar short, rounded, slightly detached from pallial line; posterior scar oval. Pallial line continuous. Inner shell margin coarsely crenulate.
REMARKS
See comparison with L. sperabilis n. comb. above.
description: Published as part of Glover, Emily A. & Taylor, John D., 2007, Diversity of chemosymbiotic bivalves on coral reefs: Lucinidae (Mollusca, Bivalvia) of New Caledonia and Lifou, pp. 109-181 in Zoosystema 29 (1) on page 152, DOI: 10.5281/zenodo.5392295
Fundamental Parameters of 87 Stars from the Navy Precision Optical Interferometer
Creators: name: Baines, Ellyn K.
name: Armstrong, J. Thomas
name: Schmitt, Henrique R.
name: Zavala, R. T.
name: Benson, James A.
name: Hutter, Donald J.
name: Tycner, Christopher
name: van Belle, Gerard T.
Publisher: name: arXiv
Year: 2017
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: We present the fundamental properties of 87 stars based on angular diameter measurements from the Navy Precision Optical Interferometer, 36 of which have not been measured previously using interferometry. Our sample consists of 5 dwarfs, 3 subgiants, 69 giants, 3 bright giants, and 7 supergiants, and span a wide range of spectral classes from B to M. We combined our angular diameters with photometric and distance information from the literature to determine each star's physical radius, effective temperature, bolometric flux, luminosity, mass, and age.
description: 7 tables, 4 figures
Finite, integrable and bounded time embeddings for diffusions
Creators: name: Ankirchner, Stefan
name: Hobson, David
name: Strack, Philipp
Publisher: name: arXiv
Year: 2013
Subjects: subject: Probability (math.PR)
subject: FOS: Mathematics

description: We solve the Skorokhod embedding problem (SEP) for a general time-homogeneous diffusion $X$: given a distribution $ρ$, we construct a stopping time $τ$ such that the stopped process $X_τ$ has the distribution $ρ$. Our solution method makes use of martingale representations (in a similar way to Bass (In Seminar on Probability XVII. Lecture Notes in Math. 784 (1983) 221-224 Springer) who solves the SEP for Brownian motion) and draws on law uniqueness of weak solutions of SDEs. Then we ask if there exist solutions of the SEP which are respectively finite almost surely, integrable or bounded, and when does our proposed construction have these properties. We provide conditions that guarantee existence of finite time solutions. Then, we fully characterize the distributions that can be embedded with integrable stopping times. Finally, we derive necessary, respectively sufficient, conditions under which there exists a bounded embedding.
description: Published at http://dx.doi.org/10.3150/14-BEJ598 in the Bernoulli (http://isi.cbs.nl/bernoulli/) by the International Statistical Institute/Bernoulli Society (http://isi.cbs.nl/BS/bshome.htm)
Improving the phase response of an atom interferometer by means of temporal pulse shaping
Creators: name: Fang, Bess
name: Mielec, Nicolas
name: Savoie, Denis
name: Altorio, Matteo
name: Landragin, Arnaud
name: Geiger, Remi
Publisher: name: arXiv
Year: 2017
Subjects: subject: Atomic Physics (physics.atom-ph)
subject: Instrumentation and Detectors (physics.ins-det)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We study theoretically and experimentally the influence of temporally shaping the light pulses in an atom interferometer, with a focus on the phase response of the interferometer. We show that smooth light pulse shapes allow rejecting high frequency phase fluctuations (above the Rabi frequency) and thus relax the requirements on the phase noise or frequency noise of the interrogation lasers driving the interferometer. The light pulse shape is also shown to modify the scale factor of the interferometer, which has to be taken into account in the evaluation of its accuracy budget. We discuss the trade-offs to operate when choosing a particular pulse shape, by taking into account phase noise rejection, velocity selectivity, and applicability to large momentum transfer atom interferometry.
description: accepted in New Journal of Physics
Spurious seasonality detection: a non-parametric test proposal
Creators: name: Bariviera, Aurelio F.
name: Plastino, Angelo
name: Judge, George
Publisher: name: arXiv
Year: 2018
Subjects: subject: Statistical Finance (q-fin.ST)
subject: Computational Finance (q-fin.CP)
subject: Mathematical Finance (q-fin.MF)
subject: FOS: Economics and business

description: This paper offers a general and comprehensive definition of the day-of-the-week effect. Using symbolic dynamics, we develop a unique test based on ordinal patterns in order to detect it. This test uncovers the fact that the so-called "day-of-the-week" effect is partly an artifact of the hidden correlation structure of the data. We present simulations based on artificial time series as well. Whereas time series generated with long memory are prone to exhibit daily seasonality, pure white noise signals exhibit no pattern preference. Since ours is a non parametric test, it requires no assumptions about the distribution of returns so that it could be a practical alternative to conventional econometric tests. We made also an exhaustive application of the here proposed technique to 83 stock indices around the world. Finally, the paper highlights the relevance of symbolic analysis in economic time series studies.
On Perturbations of Quintom Bounce
Creators: name: Cai, Yi-Fu
name: Qiu, Taotao
name: Brandenberger, Robert
name: Piao, Yun-Song
name: Zhang, Xinmin
Publisher: name: arXiv
Year: 2007
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Astrophysics (astro-ph)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: A Quintom universe with an equation-of-state crossing the cosmological constant boundary can provide a bouncing solution dubbed the Quintom Bounce and thus resolve the Big Bang singularity. In this paper, we investigate the cosmological perturbations of the Quintom Bounce both analytically and numerically. We find that the fluctuations in the dominant mode in the post-bounce expanding phase couple to the growing mode of the perturbations in the pre-bounce contracting phase.
description: 24 pages, 9 figures
Improving science yield for NASA Swift with automated planning technologies
Creators: name: Tohuvavohu, Aaron
Publisher: name: arXiv
Year: 2017
Subjects: subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: Systems and Control (eess.SY)
subject: FOS: Physical sciences
subject: FOS: Electrical engineering, electronic engineering, information engineering

description: The Swift Gamma-Ray Burst Explorer is a uniquely capable mission, with three on-board instruments and rapid slewing capabilities. It serves as a fast-response satellite observatory for everything from gravitational-wave counterpart searches to cometary science. Swift averages 125 different observations per day, and is consistently over-subscribed, responding to about one-hundred Target of Oportunity (ToO) requests per month from the general astrophysics community, as well as co-pointing and follow-up agreements with many other observatories. Since launch in 2004, the demands put on the spacecraft have grown consistently in terms of number and type of targets as well as schedule complexity. To facilitate this growth, various scheduling tools and helper technologies have been built by the Swift team to continue improving the scientific yield of the Swift mission. However, these tools have been used only to assist humans in exploring the local pareto surface and for fixing constraint violations. Because of the computational complexity of the scheduling task, no automation tool has been able to produce a plan of equal or higher quality than that produced by a well-trained human, given the necessary time constraints. In this proceeding we formalize the Swift Scheduling Problem as a dynamic fuzzy Constraint Satisfaction Problem (DF-CSP) and explore the global solution space. We detail here several approaches towards achieving the goal of surpassing human quality schedules using classical optimization and algorithmic techniques, as well as machine learning and recurrent neural network (RNN) methods. We then briefly discuss the increased scientific yield and benefit to the wider astrophysics community that would result from the further development and adoption of these technologies.
description: 5 pages, 1 figure. Submitted for the proceedings of the 18th International Workshop on Advanced Computing and Analysis Techniques in Physics Research (ACAT 2017)
Oscillons in a perturbed signum-Gordon model
Creators: name: Klimas, P.
name: Streibel, J. S.
name: Wereszczynski, A.
name: Zakrzewski, W. J.
Publisher: name: arXiv
Year: 2018
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We study various properties of a perturbed signum-Gordon model, which has been obtained through the dimensional reduction of the called `first BPS submodel of the Skyrme model'. This study is motivated by the observation that the first BPS submodel of the Skyrme model may be partially responsible for the good qualities of the rational map ansatz approximation to the solutions of the Skyrme model. We investigate the existence, stability and various properties of oscillons and other time-dependent states in this perturbed signum-Gordon model.
description: 38 pages, 30 figures
Cardiolucina Sacco 1901
Creators: name: Glover, Emily A.
name: Taylor, John D.
Publisher: name: Zenodo
Year: 2007
Subjects: Biodiversity
Taxonomy
Animalia
Mollusca
Bivalvia
Lucinida
Lucinidae
Cardiolucina

description: Genus Cardiolucina Sacco, 1901
Cardiolucina Sacco, 1901 (June): 89.
Bellucina Dall, 1901 (August): 806.
TYPE SPECIES. — Cardium agassizi Michelotti, 1839 (original designation).
DIAGNOSIS. — Shells small (H to 14 mm), subcircular, moderately inflated to subspheroidal. Sculpture of radial ribs crossed by commarginal lamellae, that are often fluted. Lunule heart-shaped, often deeply impressed. Hinge plate thick, 2 cardinal teeth and single anterior and posterior lateral teeth in each valve. Ligament external, short. Anterior adductor scar short, slightly detached from pallial line. Ventral margin crenulate.
description: Published as part of Glover, Emily A. & Taylor, John D., 2007, Diversity of chemosymbiotic bivalves on coral reefs: Lucinidae (Mollusca, Bivalvia) of New Caledonia and Lifou, pp. 109-181 in Zoosystema 29 (1) on page 156, DOI: 10.5281/zenodo.5392295
title: CYANIDE AND ISOCYANIDE ABUNDANCES IN THE COLD, DARK CLOUD TMC-1
Creators: name: Irvine, William M.
name: Schloerb, FP
Publisher: name: University of Massachusetts Amherst
Year: 1984
Subjects: subject: Astrophysics and Astronomy

description: The published version is located at http://adsabs.harvard.edu/doi/10.1086/162229
description: Cold, dark molecular clouds are particularly useful for the study of interstellar chemistry because their physical parameters are better understood than those of heterogeneous, complex giant molecular clouds. Another advantage is their relatively small distance from the solar system. The present investigaation has the objective to provide accurate abundance ratios for several cyanides and isocyanides in order to constrain models of dark cloud chemistry. The relative abundances of such related species can be particularly useful for the study of chemical processes. The cloud TMC-1 considered in the current study has a remarkably high abundance of acetylene and polyacetylene derivatives. Data at 3 mm, corresponding to the J = 1 to 0 transitions of HCN, H(C-13)N, HN(C-13), HC(N-15), and H(N-15)C were obtained.
Search for Lepton Flavor Violating tau Decays into Three Leptons
Creators: name: Miyazaki, Y.
Publisher: name: arXiv
Year: 2007
Subjects: subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: We search for lepton-flavor-violating tau decays into three leptons (electron or muon) using 535 fb-1 of data collected with the Belle detector at the KEKB asymmetric-energy e+e- collider. No evidence for these decays is observed, and we set 90% confidence level upper limits on the branching fractions of (2.0-4.1)x10^-8. These results improve upon our previously published upper limits by factors of 4.9 to 10.
description: 11 pages, 4 figures, submitted to Phys. Lett. B
Spin-current coherence peak in superconductor/magnet junctions
Creators: name: Umeda, Maki
name: Shiomi, Yuki
name: Kikkawa, Takashi
name: Niizeki, Tomohiko
name: Lustikova, Jana
name: Takahashi, Saburo
name: Saitoh, Eiji
Publisher: name: arXiv
Year: 2018
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: Coherence peak effects in a superconductor induced by a thermal spin current are reported. We measured inverse spin Hall effects induced by spin injection from a ferrimagnetic insulator Y$_3$Fe$_5$O$_{12}$ into a superconductor NbN using longitudinal spin Seebeck effects. In the vicinity of the superconducting transition temperature of the NbN, a large enhancement of the spin Seebeck voltage is observed, whose sign is opposite to that for the vortex Nernst effect, but is consistent with a calculation for a coherence peak effect in the superconductor NbN.
description: 5 pages, 4 figures
Optimal nonmyopic value of information in graphical models : efficient algorithms and theoretical limits
Creators: name: Krause, Andreas
name: Guestrin, Carlos
Publisher: name: Carnegie Mellon University
Year: 1997
Subjects: subject: 89999 Information and Computing Sciences not elsewhere classified
subject: FOS: Computer and information sciences

description: Abstract: "Many real-world decision making tasks require us to choose among several expensive observations. In a sensor network, for example, it is important to select the subset of sensors that is expected to provide the highest reduction in uncertainty. It has been general practice to use heuristic-guided procedures for selecting observations. In this paper, we present the first efficient optimal algorithms for selecting observations for a class of graphical models containing Hidden Markov Models (HMMs). We provide results for both selecting the optimal subset of observations, and for obtaining an optimal conditional observation plan. We also prove a surprising result: In most graphical models tasks, if one designs an efficient algorithm for chain graphs, such as HMMs, this procedure can be generalized to polytrees. We prove that the value of information problem is NP[superscript PP]-hard even for discrete polytrees. It also follows from our results that even computing conditional entropies, which are widely used to measure value of information, is a #P-complete problem on polytrees. Finally, we demonstrate the effectiveness of our approach on several real-world datasets."
Optimal lower bounds for locality sensitive hashing (except when q is tiny)
Creators: name: O'Donnell, Ryan
name: Wu, Yi
name: Zhou, Yuan
Publisher: name: Carnegie Mellon University
Year: 2005
Subjects: subject: 89999 Information and Computing Sciences not elsewhere classified
subject: FOS: Computer and information sciences

description: We study lower bounds for Locality Sensitive Hashing (LSH) in the strongest setting: point sets in {0; 1}d under the Hamming distance. Recall that H is said to be an (r; cr; p; q)-sensitive hash family if all pairs x; y ∈ {0; 1}d with dist(x; y) ≤ r have probability at least p of collision under a randomly chosen h ∈ H, whereas all pairs x; y ∈ {0; 1}d with dist(x; y) ≥ cr have probability at most q of collision. Typically, one considers d → ∞, with c > 1 fixed and q bounded away from 0.
Pillucina Pilsbry 1921
Creators: name: Glover, Emily A.
name: Taylor, John D.
Publisher: name: Zenodo
Year: 2007
Subjects: Biodiversity
Taxonomy
Animalia
Mollusca
Bivalvia
Lucinida
Lucinidae
Pillucina

description: Genus Pillucina Pilsbry, 1921
Pillucina Pilsbry, 1921: 382. Type species: Pillucina spaldingi Pilsbry, 1921 (junior subjective synonym of P. hawaiiensis (Smith, 1885)) (original designation).
Sydlorina Iredale, 1930: 390. Type species: Sydlorina symbolica Iredale, 1930 (original designation).
DIAGNOSIS. — Shells small (H to 14 mm), inflated, sculpture of fine to broad radial ribs that often bifurcate, crossed by fine, low, commarginal lamellae. Sculpture usually more prominent on anterior and posterior parts of shell. Hinge with two cardinal teeth in left valve and a single cardinal tooth in right valve. Posterior lateral tooth present in both valves, anterior lateral tooth present or absent. Ligament internal, located on elongate resilifer that widens to the posterior.Anterior adductor muscle scar short and detached from pallial line for about 1/4-1/2 of length. Inner shell margin finely to coarsely crenulate.
description: Published as part of Glover, Emily A. & Taylor, John D., 2007, Diversity of chemosymbiotic bivalves on coral reefs: Lucinidae (Mollusca, Bivalvia) of New Caledonia and Lifou, pp. 109-181 in Zoosystema 29 (1) on page 158, DOI: 10.5281/zenodo.5392295
One flavor mass reweighting in lattice QCD
Creators: name: Finkenrath, Jacob
name: Knechtli, Francesco
name: Leder, Björn
Publisher: name: arXiv
Year: 2013
Subjects: subject: High Energy Physics - Lattice (hep-lat)
subject: FOS: Physical sciences

description: One flavor mass reweighting can be used in lattice QCD computations to fine tune the quark masses to their physical values. We present a new method that utilizes an unbiased stochastic estimation of the one flavor determinant. The stochastic estimation is based on the integral representation of the determinant of a complex matrix, which we prove. In contrast to other methods it can also be applied in situations where the determinant has a complex phase. The stochastic error is controlled by determinant factorizations based on mass interpolation and Schur decomposition. As an example of an application we demonstrate how the method can be used to tune the up-down quark mass difference.
description: 20 pages, 4 figures; condition in Eq. (7) corrected, numerical results unaffected
title: ADCO, Neuvième cartulaire de Saint-Étienne de Dijon (1661 - 1684), Cart. 32 (G 136), 745 folios, f. 1429
Creators: name: de la Côte d'Or, Archives départementales
name: Petot, Frédéric
name: Archives Départementales De La Côte-D'Or
name: Petot, Frédérique
name: Projet CBMA
name: CG21/F.PETOT/2012
Publisher: name: NAKALA - https://nakala.fr (Huma-Num - CNRS)
publisherIdentifier: https://ror.org/04ces3204
publisherIdentifierScheme: ROR
Year: 2020
Subjects: subject: LaMOP
subject: Laboratoire de Médiévistique Occidentale de Paris
subject: Corpus Burgundiae Medii Aevi
subject: Chartes de la Bourgogne du Moyen Âge
subject: cartulaire

description: Neuvième cartulaire de Saint-Étienne de Dijon (1661 - 1684), Archives départementales de la Côte-d'Or, Cart. 32 (G 136), 745 folios, f. 1429, Numérisation en mode image.
description: Relation: http://www.cbma-project.eu/
description: Bibliographic citation: Neuvième cartulaire de Saint-Étienne de Dijon (1661 - 1684), Archives départementales de la Côte-d'Or, Cart. 32 (G 136), 745 folios, f. 1429, in Projet CBMA - Corpus Burgundiae Medii Aevi [Ressource en ligne], https:// manuscrits.cbma-project.eu/
description: Provenance: abbaye Saint-Étienne de Dijon
description: Provenance: http://www.wikidata.org/entity/Q15945019
Phonon transport unveils the prevalent point defects in GaN
Creators: name: Katre, Ankita
name: Carrete, Jesús
name: Wang, Tao
name: Madsen, Georg K. H.
name: Mingo, Natalio
Publisher: name: arXiv
Year: 2017
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Determining the types and concentrations of vacancies present in intentionally doped GaN is a notoriously difficult and long-debated problem. Here we use an unconventional approach, based on thermal transport modeling, to determine the prevalence of vacancies in previous measurements. This allows us to provide conclusive evidence of the recent hypothesis that gallium vacancies in ammonothermally grown samples can be complexed with hydrogen. Our calculations for O-doped and Mg-O co-doped samples yield a consistent picture interlinking dopant and vacancy concentration, carrier density, and thermal conductivity, in excellent agreement with experimental measurements. These results also highlight the predictive power of ab initio phonon transport modeling, and its value for understanding and quantifying defects in semiconductors.
description: 5 pages, 4 figures, 1 supplementary material file
Pillucina pacifica Glover & Taylor 2001
Creators: name: Glover, Emily A.
name: Taylor, John D.
Publisher: name: Zenodo
Year: 2007
Subjects: Biodiversity
Taxonomy
Animalia
Mollusca
Bivalvia
Lucinida
Lucinidae
Pillucina
Pillucina pacifica

description: Pillucina pacifica Glover & Taylor, 2001
(Figs 33; 34C)
Pillucina pacifica Glover & Taylor, 2001: 266, figs 2a-g, 3.
TYPE MATERIAL. — Holotype (AMS C.355685).
Paratypes: from type locality (AMS C.380464, BMNH 2000204).
TYPE LOCALITY. — Australia, Michaelmas Cay, Great Barrier Reef, Queensland, 16°36’S, 145°59’E.
MATERIAL EXAMINED. — Koumac. 5 stn, 12-120 m, 21 v.
Lifou. 10 stn, 4-30 m, 34 v, 1 live.
DISTRIBUTION. — Known from Queensland, Australia, Papua New Guinea, Kiribati and New Caledonia but probably more widespread in the West Pacific (Glover & Taylor 2001: 268).
DESCRIPTION
Shell small (H to 8 mm), white, robust, inflated, obliquely ovoid, slightly higher than long (H/L 1.1). Sculpture of fine radial ribs(>50) that are slightly more prominent in anterior of the shell, broader posteriorly. Radial ribs are crossed by thread-like, commarginal lamellae giving a reticulate ornament.Ribbing is often worn in the middle part of the shell. Lunule short, broad and slightly impressed. Hinge plate sinuous, with cardinal teeth located on downward projection. RV with single prominent cardinal tooth, a thin, elongate posterior lateral tooth and a short anterior lateral.LV with two cardinal teeth of which the anterior is larger. Posterior lateral tooth a thin ridge, anterior lateral indistinct. Ligament internal, short. Anterior adductor scar short, barely detached from the pallial line,posterior scar ovate.Pallial line sometimes divided. Shell margin finely and evenly crenulate.
description: Published as part of Glover, Emily A. & Taylor, John D., 2007, Diversity of chemosymbiotic bivalves on coral reefs: Lucinidae (Mollusca, Bivalvia) of New Caledonia and Lifou, pp. 109-181 in Zoosystema 29 (1) on page 161, DOI: 10.5281/zenodo.5392295
Optimal Inapproximability Results for MAX-CUT and Other 2-Variable CSPs?
Creators: name: Khot, Subhash
name: Kindler, Guy
name: Mossel, Elchanan
name: O'Donnell, Ryan
Publisher: name: Carnegie Mellon University
Year: 1982
Subjects: subject: 89999 Information and Computing Sciences not elsewhere classified
subject: FOS: Computer and information sciences

description: In this paper we show a reduction from the Unique Games problem to the problem of approximating MAX-CUT to within a factor of αGW+ε for all ε > 0; here αGW ≈ .878567 denotes the approximation ratio achieved by the algorithm of Goemans and Williamson in [J. Assoc. Comput. Mach., 42 (1995), pp. 1115–1145]. This implies that if the Unique Games Conjecture of Khot in [Proceedings of the 34th Annual ACM Symposium on Theory of Computing, 2002, pp. 767–775] holds, then the Goemans–Williamson approximation algorithm is optimal. Our result indicates that the geometric nature of the Goemans–Williamson algorithm might be intrinsic to the MAX-CUT problem.
Energy transfer between two vacuum-gapped metal plates: Coulomb fluctuation and electron tunneling
Creators: name: Zhang, Zu-Quan
name: Lü, Jing-Tao
name: Wang, Jian-Sheng
Publisher: name: arXiv
Year: 2018
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: Recent experimental measurements for near-field radiative heat transfer between two bodies have been able to approach the gap distance within $2 \; \textrm{nm}$, where the contributions of Coulomb fluctuation and electron's tunneling are comparable. Using the nonequilibrium Green's function method in the $G_{0}W_{0}$ approximation, based on a tight-binding model, we obtain for the energy current a Caroli formula from the Meir-Wingreen formula in the local equilibrium approximation. Also, the Caroli formula is consistent with the evanescent part of the heat transfer from the theory of fluctuational electrodynamics. We go beyond the local equilibrium approximation to study the energy transfer in the crossover region from electron tunneling to Coulomb fluctuation based on a numerical calculation.
description: 8 pages,7 figures
Self-interaction in the Bopp-Podolsky electrodynamics: Can the observable mass of a charged particle depend on its acceleration?
Creators: name: Zayats, Alexei E.
Publisher: name: arXiv
Year: 2013
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: Classical Physics (physics.class-ph)
subject: FOS: Physical sciences

description: In this paper we obtain the expression for the self-force in the model with the Lagrangian containing additional terms, quadratic in Maxwell tensor derivatives (so-called Bopp-Podolsky electrodynamics). Features of this force are analyzed for various limiting cases. When a charged particle moves along straight line with a uniform acceleration, an explicit formula is found. In the framework of the considered model, an observable renormalized particle mass is shown to depend on its acceleration. This dependence allows, in principle, to extract experimentally a value of the particle bare mass.
description: 8 pages, 1 figure, final version
Coagulation, fragmentation and radial motion of solid particles in protoplanetary disks
Creators: name: Brauer, F.
name: Dullemond, C. P.
name: Henning, Th.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: The growth of solid particles towards meter sizes in protoplanetary disks has to circumvent at least two hurdles, namely the rapid loss of material due to radial drift and particle fragmentation due to destructive collisions. In this paper, we present the results of numerical simulations with more and more realistic physics involved. Step by step, we include various effects, such as particle growth, radial/vertical particle motion and dust particle fragmentation in our simulations. We demonstrate that the initial dust-to-gas ratio is essential for the particles to overcome the radial drift barrier. If this value is increased by a factor of 2 compared with the canonical value for the interstellar medium, km-sized bodies can form in the inner disk <2 AU within 10 thousand years. However, we find that solid particles get destroyed through collisional fragmentation. Only with the unrealistically high-threshold velocities needed for fragmentation to occur (>30 m/s), particles are able to grow to larger sizes in low turbulent disks. We also find that less than 5% of the small dust grains remain in the disk after 1 Myrs due to radial drift, no matter whether fragmentation is included in the simulations or not. In this paper, we also present considerable improvements to existing algorithms for dust-particle coagulation, which speed up the coagulation scheme by a factor of 10 thousand.
description: accepted for publication in A&A
Multipolar edge states in the breathing kagome model
Creators: name: Romhányi, Judit
Publisher: name: arXiv
Year: 2018
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: Excitations of ordered insulating magnets gain renewed interest due to their potential topological properties and the natural realization of magnetic analogues of the celebrated topological models. In this paper we go beyond these parallels and explore what else is there in the unconventional excitations of quantum magnets. We study the topologically nontrivial multiplet excitations of the antiferromagnetic spin-1/2 kagome system with strong breathing anisotropy and Dzyaloshinskii-Moriya interaction. We show that in the chiral magnetic ground state the excitations can be characterized by a spin-1/2 doublet and a spin-3/2 quartet. With the use of magnetic field we can tune the quartet through a band touching topological phase transition, when a novel spin-3/2 Dirac cone is formed by the touching of four bands. In the topologically nontrivial regime the spin-3/2 bands have large Chern numbers -3, -1, 1, 3. In an open system the emerging chiral edge states naturally inherit the multipolar characters and we find novel quadrupolar edge modes.
description: Main text: 6 pages and 5 figures, Supplementing materials: 6 pages and 1 figure
Code and data for "Increased frequency of extreme climatic events weakens the community stability of natural grassland under directional climate changes by reducing resilience" manuscript
Creators: name: Liu, Peipei
Publisher: name: figshare
Year: 2024
Subjects: classificationCode: 410102
subject: Ecological impacts of climate change and ecological adaptation

description: The data and scripts in this database are analyses for a research paper in Global Ecology and Biogeography: Increased frequency of extreme climatic events weakens the community stability of natural grassland under directional climate changes by reducing resilience. Please refer to the README file and the paper for details about the usage of the data and methodology.
Dynamical Coupled-Channels Analysis at EBAC
Creators: name: Lee, T. -S. H.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: The status of dynamical coupled-channel analysis at Excited Baryon Analysis Center (EBAC) of Jefferson Laboratory is reported.
The co-existence of hot and cold gas in debris discs
Creators: name: Rebollido, I.
name: Eiroa, C.
name: Montesinos, B.
name: Maldonado, J.
name: Villaver, E.
name: Absil, O.
name: Bayo, A.
name: Canovas, H.
name: Carmona, A.
name: Chen, Ch.
name: Ertel, S.
name: Garufi, A.
name: Henning, Th.
name: Iglesias, D. P.
name: Laundhart, R.
name: Lisseau, R.
name: Meeus, G.
name: Móor, A.
name: Mora, A.
name: Olofsson, J.
name: Rauw, G.
name: Riviere-Marichalar, P.
Publisher: name: arXiv
Year: 2018
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: FOS: Physical sciences

description: Debris discs have often been described as gas-poor discs as the gas-to-dust ratio is expected to be considerably lower than in primordial,protoplanetary discs. However, recent observations have confirmed the presence of a non-negligible amount of cold gas in the circumstellar (CS) debris discs around young main-sequence stars.This cold gas has been suggested to be related to the outgassing of planetesimals and cometary-like objects. The aim of the paper is to investigate the presence of hot gas in the surroundings of stars bearing cold-gas debris discs. High-resolution optical spectra of all currently known cold-gas-bearing debris-disc systems, with the exception of $β$ Pic and Fomalhaut, have been obtained from different observatories.We have analysed the Ca II H & K and the Na I D lines searching for non-photospheric absorptions of CS origin, usually attributed to cometary-like activity. Narrow, stable Ca II and/or Na I absorption features have been detected superimposed to the photospheric lines in 10 out of the 15 observed cold-gas-bearing debris disc.Features are found at the radial velocity of the stars, or slightly blue- or red-shifted, and/or at the velocity of the local interstellar medium (ISM). Some stars also present transient variable events or absorptions extended towards red wavelengths. These are the first detections of such Ca II features in 7 out of the 15 observed stars. In some of these stars, results suggest that the stable and variable absorptions arise from relatively hot gas located in the CS close-in environment. This hot gas is detected in at least ~80%, of edge-on cold-gas-bearing debris discs, while in only ~10% of the discs seen close to face-on. We interpret this as a geometrical effect, and suggest that the non-detection of hot gas absorptions is due to the disc inclination rather than to the absence of the hot-gas component.
description: 14 pages, 8 figures, 2 appendix