cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Thermodynamical description of the interaction between holographic dark energy and dark matter
Creators: name: Wang, Bin
name: Lin, Chi-Yong
name: Pavon, Diego
name: Abdalla, Elcio
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: FOS: Physical sciences

description: We present a thermodynamical description of the interaction between holographic dark energy and dark matter. If holographic dark energy and dark matter evolve separately, each of them remains in thermodynamic equilibrium. A small interaction between them may be viewed as a stable thermal fluctuation that brings a logarithmic correction to the equilibrium entropy. From this correction we obtain a physical expression for the interaction which is consistent with phenomenological descriptions and passes reasonably well the observational tests.
description: 14 pages, 4 figures, to be published in Phys. Lett. B
Gravity-mediated (or Composite) Dark Matter
Creators: name: Lee, Hyun Min
name: Park, Myeonghun
name: Sanz, Veronica
Publisher: name: arXiv
Year: 2013
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: Dark matter could have an electroweak origin, yet communicate with the visible sector exclusively through gravitational interactions. In a set-up addressing the hierarchy problem, we propose a new dark matter scenario where gravitational mediators, arising from the compactification of extra-dimensions, are responsible for dark matter interactions and its relic abundance in the Universe. We write an explicit example of this mechanism in warped extra-dimensions and work out its constraints. We also develop a dual picture of the model, based on a four-dimensional scenario with partial compositeness. We show that Gravity-mediated Dark Matter is equivalent to a mechanism of generating viable dark matter scenarios in a strongly-coupled, near-conformal theory, such as in composite Higgs models.
description: 24 pages, 6 figures. Replaced with published version. Higher KK-modes included
Soft X-ray emissions of highly charged Si VII--Si XII in cool star--Procyon
Creators: name: Liang, G. Y.
name: Zhao, G.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: Different observation data for cool star--Procyon (Obs\_IDs of 63, 1461 and 1224) available from {\it Chandra Data Public Archive} were co-added and analyzed. Emissivities of emission lines of highly charged silicon ions (Si VII--Si XII) were calculated over temperatures by adopting the published data of Liang et al. (2007, {\it Atom. Data and Nucl. Data Tables}, {\bf 93}, 375). Using the emission measure derived by Raassen et al. (2002, A&A, {\bf 389}, 228), the theoretical line fluxes are predicted, and the theoretical spectra are constructed by assuming the Gaussian profile with instrumental broadening (0.06 Å). By detailed comparison between observation and predictions, several emissions lines are identified firstly such as emissions at 43.663 Å(Si XI), 45.550 Å(Si XII), 46.179 Å(Si VIII), 50.874 Å(Si X), 64.668 Å(Si IX), and 73.189 Å(Si VII) etc. Several emission lines are re-assigned in this work, such as the emission line at 52.594 Åto Si X (52.612 Å), at 69.641 Åto the blending of Si VII (69.632 Å) and Si VIII (69.664 Å) lines, as well as at 70.050 Åto Si VII (70.027 Å). The prediction reveals the large discrepancies between the $3s$--$2p$ line (63.715 Å) {\it versus} 3d--$2p$ line (61.012 Å) again for lower charge stage Si VIII. Solar flare observation is also added for the assessment of present calculation. Different assignments for some lines between Procyon and solar flare, have been found to be due to the hotter emitter in Sun than in Procyon coronae.
description: 9 pages, 3 figures, Accepted by MNRAS
Bretskya Glover & Taylor 2007, n. gen.
Creators: name: Glover, Emily A.
name: Taylor, John D.
Publisher: name: Zenodo
Year: 2007
Subjects: Biodiversity
Taxonomy
Animalia
Mollusca
Bivalvia
Lucinida
Lucinidae
Bretskya

description: Genus Bretskya n. gen.
TYPE SPECIES. — Bretskya scapula n. sp. (here designated).
ETYMOLOGY. — Named for Sara Bretsky in recognition of her contribution to lucinid systematics.
DIAGNOSIS. — Shells small, thin, elongate, umbones posterior and prominent, outline irregularly ovoid, posterior margin truncate to sinuate. Sculpture of thin, low, irregularly spaced, commarginal lamellae and growth increments, shell surface often distorted. Ligament large, inset on elongate resilifer. Hinge with two small cardinal teeth in left valve and one in right valve. Anterior adductor scar short, detached from pallial line for about 1/3 of length. Interior margin smooth.
REMARKS
Bretskya n. gen. differs from all other described lucinids by its extremely anteriorly extended shell, with prominent, posteriorly located umbones and a deep resilifer. Some Megaxinus and Rasta species have similarly crumpled, exterior shell surfaces (Glover & Taylor 1997).
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 170, DOI: 10.5281/zenodo.5392295
A comment on "Ab initio calculations of pressure-dependence of high-order elastic constants using finite deformations approach" by I. Mosyagin, A.V. Lugovskoy, O.M. Krasilnikov, Yu.Kh. Vekilov, S.I. Simak and I.A. Abrikosov
Creators: name: Maździarz, Marcin
Publisher: name: arXiv
Year: 2017
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: Materials Science (cond-mat.mtrl-sci)
subject: Computational Physics (physics.comp-ph)
subject: FOS: Physical sciences

description: Recently, I. Mosyagin, A.V. Lugovskoy, O.M. Krasilnikov, Yu.Kh. Vekilov, S.I. Simak and I.A. Abrikosov in the paper: "Ab initio calculations of pressure-dependence of high-order elastic constants using finite deformations approach"[Computer Physics Communications 220 (2017) 2030] presented a description of a technique for ab initio calculations of the pressure dependence of second- and third-order elastic constants. Unfortunately, the work contains serious and fundamental flaws in the field of finite-deformation solid mechanics.
description: 3 pages, 0 figures
Comments on TPC and RPC calibrations reported by the HARP Collaboration
Creators: name: Ammosov, V.
Publisher: name: arXiv
Year: 2007
Subjects: subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: The HARP Collaboration recently published calibrations of their TPC and RPC detectors, and differential cross-sections of large-angle pion production in proton-nucleus collisions. We argue that these calibrations are biased and cross-sections based on them should not be trusted.
description: 17 pages, 13 figures
Online Supervised Learning of Non-Understanding Recovery Policies
Creators: name: Bohus, Dan
name: Langner, Brian
name: Raux, Antoine
name: Black, Alan
name: Eskenazi, Maxine
name: Rudnicky, Alexander
Publisher: name: Carnegie Mellon University
Year: 2003
Subjects: subject: 89999 Information and Computing Sciences not elsewhere classified
subject: FOS: Computer and information sciences

description: Spoken dialog systems typically use a limited number of non- understanding recovery strategies and simple heuristic policies to engage them (e.g. first ask user to repeat, then give help, then transfer to an operator). We propose a supervised, online method for learning a non-understanding recovery policy over a large set of recovery strategies. The approach consists of two steps: first, we construct runtime estimates for the likelihood of success of each recovery strategy, and then we use these estimates to construct a policy. An experiment with a publicly available spoken dialog system shows that the learned policy produced a 12.5% relative improvement in the non-understanding recovery rate.
Lettre de Chrysostome de Gaillard à Jean-François Séguier, 1769-04-30
Creators: name: Gaillard, Chrysostome de
name: Chrysostome De Gaillard
Publisher: name: NAKALA - https://nakala.fr (Huma-Num - CNRS)
publisherIdentifier: https://ror.org/04ces3204
publisherIdentifierScheme: ROR
Year: 2021
Subjects: Numismatique
Collections

description: [transcription] Monsieur,

A mon retour de cette ville, après une courte apparition en Dauphiné, je m'empresse d'acquitter ma parole et de vous envoyer quelques médailles grecques qui me viennent d'Italie. Je souhaite que dans le nombre, vous en trouviez qui soient dignes d'entrer dans votre collection. Quant à moi, j'ouvre enfin les yeux sur l'infidélité des ultramontains, après avoir été trois fois leur dupe. Je m'aperçois qu'ils secouent leurs puces sur nous et que nous n'obtenons d'eux que leur rebut qu'ils nous vendent très chèrement. Croiriez-vous que sur quatre-vingts pièces que je viens de recevoir, il n'y a eu qu'un médaillon de Justinien qui fut recevable. Aussi, c'est une résolution prise, je n'aurai plus d'affaires avec eux et je me bornerai à acheter de proche en proche ce que j'aurai la liberté d'examiner avant de conclure [fol. 115 v] aucun marché.

Vous m'avez fait espérer quelques-unes de vos observations sur les inscriptions d'Arles. Je compte qu'à vos moments de loisir, vous aurez la complaisance de remplir cet engagement qui me mettra à portée de rectifier idées sur les vôtres. Dès que je serai débarrassé des devoirs d'état, je vous transmettrai le cipe de KARISIDAMIS dont il m'a paru que vous n'avez qu'une copie très défectueuse et j'y joindrai la colonne milliaire. Si Messieurs les consuls l'ont déjà fait placer de manière qu'on puisse la lire sans trop grande incommodité.

J'ai l'honneur d'être avec un respectueux attachement,

Monsieur,

Votre très humble et

très obéissant serviteur.

Arles le 30 avril 1769.

Le chevalier de Gaillard, commandeur du Poet Laval.
description: Source: [lieu de Conservation] Nîmes, Bibliothèque Carré d'Art [cote]ms. 143_4, fol. 115
description: Source: ark:/12148/btv1b10015228v
Drake's Rule as a Consequence of Approaching Channel Capacity
Creators: name: Shadrin, Alexey A.
name: Parkhomchuk, Dmitri V.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Populations and Evolution (q-bio.PE)
subject: Genomics (q-bio.GN)
subject: FOS: Biological sciences

description: How mutations accumulate in genomes is the central question of molecular evolution theories, however our understanding of this process is far from complete. Drake's rule is a notoriously universal property of genomes from microbes to mammals - the number of (functional) mutations per-genome per-generation is approximately constant within a phylum, despite orders of magnitude differences in genome sizes and diverse populations properties. So far there is no concise explanation for this phenomenon. A formal model of storage of genetic information suggests that a genome of any species operates near its maximum informational storage capacity, and the mutation rate is near its upper limit, providing a simple explanation for the rule with minimal assumptions.
description: Keywords: Drake's rule, information theory, neutral theory
Time propagation of constrained coupled Gaussian wave packets
Creators: name: Fabcic, T.
name: Main, J.
name: Wunner, G.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: The dynamics of quantum systems can be approximated by the time propagation of Gaussian wave packets. Applying a time dependent variational principle, the time evolution of the parameters of the coupled Gaussian wave packets can be calculated from a set of ordinary differential equations. Unfortunately, the set of equations is ill-behaved in most practical applications, depending on the number of propagated Gaussian wave packets, and methods for regularization are needed. We present a general method for regularization based on applying adequate nonholonomic inequality constraints to the evolution of the parameters, keeping the equations of motion well-behaved. The power of the method is demonstrated for a non-integrable system with two degrees of freedom.
description: 8 pages, 3 figures, accepted for publication in J. Chem. Phys
Two-step solar filament eruptions
Creators: name: Filippov, Boris
Publisher: name: arXiv
Year: 2017
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: Coronal mass ejections (CMEs) are closely related to eruptive filaments and usually are the continuation of the same eruptive process into the upper corona. There are failed filament eruptions when a filament decelerates and stops at some greater height in the corona. Sometimes the filament after several hours starts to rise again and develops into the successful eruption with a CME formation. We propose a simple model for the interpretation of such two-step eruptions in terms of equilibrium of a flux rope in a two-scale ambient magnetic field. The eruption is caused by a slow decrease of the holding magnetic field. The presence of two critical heights for the initiation of the flux-rope vertical instability allows the flux rope to stay after the first jump some time in a metastable equilibrium near the second critical height. If the decrease of the ambient field continues, the next eruption step follows.
description: 8 pages, 5 figures, accepted for publication in MNRAS
Vital, Orderic, Histoire de Normandie, traduit par Louis-François du Bois, Paris, J.-L.-J. Brière, 1826, tome 3
Creators: name: Vital, Orderic
Publisher: name: NAKALA - https://nakala.fr (Huma-Num - CNRS)
publisherIdentifier: https://ror.org/04ces3204
publisherIdentifierScheme: ROR
Year: 2019

description: Source: https://gallica.bnf.fr/ark:/12148/bpt6k94619v
description: Relation: vignette : https://www.nakala.fr/data/11280/ca1b3fa7
Atom-molecule collisions, spin relaxation, and sympathetic cooling in an ultracold spin-polarized Rb($^2\mathrm{S}$)-SrF$(^2Σ^+)$ mixture
Creators: name: Morita, Masato
name: Kosicki, Maciej B.
name: Żuchowski, Piotr S.
name: Tscherbul, Timur V.
Publisher: name: arXiv
Year: 2018
Subjects: subject: Atomic Physics (physics.atom-ph)
subject: Chemical Physics (physics.chem-ph)
subject: FOS: Physical sciences

description: We explore the suitability of ultracold collisions between spin-polarized SrF($^2Σ^+$) molecules and Rb($^2$S) atoms as elementary steps for the sympathetic cooling of SrF($^2Σ^+$) molecules in a magnetic trap. To this end, we carry out quantum mechanical scattering calculations on ultracold Rb+SrF collisions in a magnetic field based on an accurate potential energy surface for the triplet electronic state of Rb-SrF developed ab initio using a spin-restricted coupler cluster method with single, double and noniterative triple excitations [RCCSD(T)]. The Rb-SrF interaction has a global minimum with a well depth of 3444 cm$^{-1}$ in a bent geometry and a shallow local minimum in the linear geometry. Despite such a strong and anisotropic interaction, we find that converged close-coupling scattering calculations on Rb+SrF collisions in a magnetic field are still possible using rotational basis sets including up to 125 closed rotational channels in the total angular momentum representation. Our calculations show that electronic spin relaxation in fully spin-polarized Rb-SrF collisions occurs much more slowly than elastic scattering over a wide range of magnetic fields (1-1000 G) and collision energies ($10^{-5}-10^{-3}$ K) suggesting good prospects of sympathetic cooling of laser-cooled SrF($^2Σ^+$) molecules with spin-polarized Rb($^2$S) atoms in a magnetic trap. We show that incoming $p$-wave scattering plays a significant role in ultracold collisions due to the large reduced mass of the Rb-SrF collision pair. The calculated magnetic field dependence of the inelastic cross sections at 1.4 $μ$K displays a rich resonance structure including a low-field $p$-wave resonance, which suggests that external magnetic fields can be used to enhance the efficiency of sympathetic cooling in heavy atom-molecule mixtures.
General Hilbert stacks and Quot schemes
Creators: name: Hall, Jack
name: Rydh, David
Publisher: name: arXiv
Year: 2013
Subjects: subject: Algebraic Geometry (math.AG)
subject: FOS: Mathematics
subject: Primary 14C05, Secondary 14D23

description: We prove the algebraicity of the Hilbert functor, the Hilbert stack, the Quot functor and the stack of coherent sheaves on an algebraic stack X with (quasi-)finite diagonal without any finiteness assumptions on X. We also give similar results for Hom stacks and Weil restrictions.
description: 11 pages; corrected some minor errors; numbering changed in section 3; final version
Conversion of Love waves in a forest of trees
Creators: name: Maurel, Agnes
name: Marigo, Jean-Jacques
name: Guenneau, Sebastien
Publisher: name: arXiv
Year: 2017
Subjects: subject: Geophysics (physics.geo-ph)
subject: FOS: Physical sciences

description: We inspect the propagation of shear polarized surface waves akin to Love waves through a forest of trees of same height atop a guiding layer on a soil substrate. We discover that the foliage of trees { brings a radical change in} the nature of the dispersion relation of these surface waves, which behave like spoof plasmons in the limit of a vanishing guiding layer, and like Love waves in the limit of trees with a vanishing height. When we consider a forest with trees of increasing or decreasing height, this hybrid "Spoof Love" wave is either reflected backwards or converted into a downward propagating bulk wave. An asymptotic analysis shows the forest behaves like an anisotropic wedge with effective boundary conditions.
description: 5 pages, 6 figures
First order operators and boundary triples
Creators: name: Post, Olaf
Publisher: name: arXiv
Year: 2007
Subjects: subject: Spectral Theory (math.SP)
subject: Mathematical Physics (math-ph)
subject: Analysis of PDEs (math.AP)
subject: Functional Analysis (math.FA)
subject: FOS: Mathematics
subject: FOS: Physical sciences

description: The aim of the present paper is to introduce a first order approach to the abstract concept of boundary triples for Laplace operators. Our main application is the Laplace operator on a manifold with boundary; a case in which the ordinary concept of boundary triples does not apply directly. In our first order approach, we show that we can use the usual boundary operators also in the abstract Green's formula. Another motivation for the first order approach is to give an intrinsic definition of the Dirichlet-to-Neumann map and intrinsic norms on the corresponding boundary spaces. We also show how the first order boundary triples can be used to define a usual boundary triple leading to a Dirac operator.
description: 14 pages, new version due to paper size problems
Robustness of the charge-ordered phases in IrTe$_2$ against photoexcitation
Creators: name: Monney, C.
name: Schuler, A.
name: Jaouen, T.
name: Mottas, M. -L.
name: Wolf, Th.
name: Merz, M.
name: Muntwiler, M.
name: Castiglioni, L.
name: Aebi, P.
name: Weber, F.
name: Hengsberger, M.
Publisher: name: arXiv
Year: 2018
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: We present a time-resolved angle-resolved photoelectron spectroscopy study of IrTe$_2$, which undergoes two first-order structural and charge-ordered phase transitions on cooling below 270 K and below 180 K. The possibility of inducing a phase transition by photoexcitation with near-infrared femtosecond pulses is investigated in the charge-ordered phases. We observe changes of the spectral function occuring within a few hundreds of femtoseconds and persisting up to several picoseconds, which we interpret as a partial photoinduced phase transition (PIPT). The necessary time for photoinducing these spectral changes increases with increasing photoexcitation density and reaches timescales longer than the rise time of the transient electronic temperature. We conclude that the PIPT is driven by a transient increase of the lattice temperature following the energy transfer from the electrons. However, the photoinduced changes of the spectral function are small, which indicates that the low temperature phase is particularly robust against photoexcitation. We suggest that the system might be trapped in an out-of-equilibrium state, for which only a partial structural transition is achieved.
description: 8 pages, 5 figures, accepted for publication in Phys. Rev. B
Carnet nº 2, commencé à Vienne (p. 80)
Creators: name: Péraire, Lucien
name: CNRS
Publisher: name: NAKALA - https://nakala.fr (Huma-Num - CNRS)
publisherIdentifier: https://ror.org/04ces3204
publisherIdentifierScheme: ROR
Year: 2023

description: created: 8-10-1928
Online Steiner Tree with Deletions
Creators: name: Gupta, Anupam
name: Kumar, Amit
Publisher: name: Carnegie Mellon University
Year: 1976
Subjects: subject: 89999 Information and Computing Sciences not elsewhere classified
subject: FOS: Computer and information sciences

description: In the online Steiner tree problem, the input is a set of vertices that appear one-by-one, and we have to maintain a Steiner tree on the current set of vertices. The cost of the tree is the total length of edges in the tree, and we want this cost to be close to the cost of the optimal Steiner tree at all points in time. If we are allowed to only add edges, a tight bound of Θ(log n) on the competitiveness has been known for two decades. Recently it was shown that if we can add one new edge and make one edge swap upon every vertex arrival, we can still maintain a constant-competitive tree online. But what if the set of vertices sees both additions and deletions? Again, we would like to obtain a low-cost Steiner tree with as few edge changes as possible. The original paper of Imase and Waxman (SIAM J. Disc. Math, 4(3):369–384, 1991) had also considered this model, and it gave an algorithm that made at most O(n3/2) edge changes for the first n requests, and maintained a constant-competitive tree online. In this paper we improve on these results:
The red supergiant population in the Perseus arm
Creators: name: Dorda, Ricardo
name: Negueruela, Ignacio
name: González-Fernández, Carlos
Publisher: name: arXiv
Year: 2017
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: We present a new catalogue of cool supergiants in a section of the Perseus arm, most of which had not been previously identified. To generate it, we have used a set of well-defined photometric criteria to select a large number of candidates (637) that were later observed at intermediate resolution in the the Infrared Calcium Triplet spectral range, using a long-slit spectrograph. To separate red supergiants from luminous red giants, we used a statistical method, developed in previous works and improved in the present paper. We present a method to assign probabilities of being a red supergiant to a given spectrum and use the properties of a population to generate clean samples, without contamination from lower-luminosity stars. We compare our identification with a classification done using classical criteria and discuss their respective efficiencies and contaminations as identification methods. We confirm that our method is as efficient at finding supergiants as the best classical methods, but with a far lower contamination by red giants than any other method. The result is a catalogue with 197 cool supergiants, 191 of which did not appear in previous lists of red supergiants. This is the largest coherent catalogue of cool supergiants in the Galaxy.
description: Accepted on December 20th, 2017, in the Monthly Notices of the Royal Astronomical Society
Support for progressive taxation: self-interest (rightly understood), ideology, and political sophistication
Creators: name: Stiers, Dieter
name: Hooghe, Marc
name: Goubin, Silke
name: Lewis-Beck, Michael S.
Publisher: name: Taylor & Francis
Year: 2021
Subjects: subject: Pharmacology
subject: 59999 Environmental Sciences not elsewhere classified
subject: FOS: Earth and related environmental sciences
subject: Ecology
subject: FOS: Biological sciences
subject: Sociology
subject: FOS: Sociology
subject: 69999 Biological Sciences not elsewhere classified
subject: Cancer
subject: Science Policy
subject: Hematology

description: Progressive tax rates are one of the main instruments for redistribution within advanced liberal democracies. In this study, we investigate public support for this policy. In our analysis of a novel question included in the Belgian Electoral Study (2019) we show that left-wing citizens are strongly in favour of this system. Importantly, high levels of political sophistication strengthen the association between ideology and preferences for progressive taxation, while political sophistication weakens the association between income and rejecting progressive tax policies. Support for a flat tax policy follows exactly the opposite pattern. Hence, for a highly sophisticated group apparently there is no conflict between a tax system that might hurt their short-term material interests, and support for a more equal society.
L1-Penalized Censored Gaussian Graphical Model
Creators: name: Augugliaro, Luigi
name: Abbruzzo, Antonino
name: Vinciotti, Veronica
Publisher: name: arXiv
Year: 2018
Subjects: subject: Methodology (stat.ME)
subject: FOS: Computer and information sciences

description: Graphical lasso is one of the most used estimators for inferring genetic networks. Despite its diffusion, there are several fields in applied research where the limits of detection of modern measurement technologies make the use of this estimator theoretically unfounded, even when the assumption of a multivariate Gaussian distribution is satisfied. Typical examples are data generated by polymerase chain reactions and flow cytometer. The combination of censoring and high-dimensionality make inference of the underlying genetic networks from these data very challenging. In this paper we propose an $\ell_1$-penalized Gaussian graphical model for censored data and derive two EM-like algorithms for inference. By an extensive simulation study, we evaluate the computational efficiency of the proposed algorithms and show that our proposal overcomes existing competitors when censored data are available. We apply the proposed method to gene expression data coming from microfluidic RT-qPCR technology in order to make inference on the regulatory mechanisms of blood development.
串联反向CTCF位点的系列删除揭示增强子调控HOXD基因簇表达的平衡
Creators: name: 王玲(WANG Ling)
Publisher: name: CNGB
Year: 2021
Subjects: Raw sequence reads
Other
HEK293T cell line
cell line

description: 本研究以HOXD基因簇为模式基因，探究CTCF对发育基因转录调控的影响。利用CRISPR/Cas9 DNA片段编辑技术在人HEK293T细胞中获得一系列的串联反向CBS删除的单细胞克隆株。RNA-seq实验揭示CBS删除后HOXD基因表达下降。染色质构象捕获实验显示，HOXD与上游增强子簇的远距离染色质相互作用增强，与下游增强子簇的远距离染色质相互作用减弱。综上所述，串联反向的CBS通过发挥绝缘子功能维持上下游增强子簇对HOXD基因簇表达调控的平衡，为探究动物发育过程中Hox基因表达的精准调控机制提供参考。
Online Primal-Dual For Non-linear Optimization with Applications to Speed Scaling
Creators: name: Gupta, Anupam
name: Ravishankar  Krishnamurthy
name: Pruhs, Kirk
Publisher: name: Carnegie Mellon University
Year: 1971
Subjects: subject: 89999 Information and Computing Sciences not elsewhere classified
subject: FOS: Computer and information sciences

description: We give a principled method to design online algorithms (for potentially non-linear problems) using a mathematical programming formulation of the problem, and also to analyze the competitiveness of the resulting algorithm using the dual program. This method can be viewed as an extension of the online primal-dual method for linear programming problems, to nonlinear programs. We show the application of this method to two online speed-scaling problems: one involving scheduling jobs on a speed scalable processor so as to minimize energy plus an arbitrary sum scheduling objective, and one involving routing virtual circuit connection requests in a network of speed scalable routers so as to minimize the aggregate power or energy used by the routers. This analysis shows that competitive algorithms exist for problems that had resisted analysis using the dominant potential function approach in the speed-scaling literature, and provides alternate cleaner analysis for other known results. This gives us another tool in the design and analysis of primal-dual algorithms for online problems.
Online Pickup and Delivery Planning with Transfers for Mobile Robots
Creators: name: Coltin, Brian
name: Veloso, Manuela M.
Publisher: name: Carnegie Mellon University
Year: 1980
Subjects: subject: 89999 Information and Computing Sciences not elsewhere classified
subject: FOS: Computer and information sciences

description: We have deployed a fleet of robots that pickup and deliver items requested by users in an office building. Users specify time windows in which the items should be picked up and delivered, and send in requests online. Our goal is to form a schedule which picks up and delivers the items as quickly as possible at the lowest cost. We introduce an auction-based scheduling algorithm which plans to transfer items between robots to make deliveries more efficiently. The algorithm can obey either hard or soft time constraints. We discuss how to replan in response to newly requested items, cancelled requests, delayed robots, and robot failures. We demonstrate the effectiveness of our approach through execution on robots, and examine the effect of transfers on large simulated problems
On iterated product sets with shifts
Creators: name: Hanson, Brandon
name: Roche-Newton, Oliver
name: Zhelezov, Dmitrii
Publisher: name: arXiv
Year: 2018
Subjects: subject: Number Theory (math.NT)
subject: Classical Analysis and ODEs (math.CA)
subject: Combinatorics (math.CO)
subject: FOS: Mathematics

description: We prove that, for any finite set $A \subset \mathbb Q$ with $|AA| \leq K|A|$ and any positive integer $k$, the $k$-fold product set of the shift $A+1$ satisfies the bound $$| \{(a_1+1)(a_2+1) \cdots (a_k+1) : a_i \in A \}| \geq \frac{|A|^k}{(8k^4)^{kK}}. $$ This result is essentially optimal when $K$ is of the order $c\log|A|$, for a sufficiently small constant $c=c(k)$. Our main tool is a multiplicative variant of the $Λ$-constants used in harmonic analysis, applied to Dirichlet polynomials.
title: Atlas des DOM. - La Réunion - Planche 27 : Énergie : notice, page 1 "I. Électricité"
Creators: name: Lanteri, Paul
Publisher: name: NAKALA - https://nakala.fr (Huma-Num - CNRS)
publisherIdentifier: https://ror.org/04ces3204
publisherIdentifierScheme: ROR
Year: 2017
Subjects: centrale hydroélectrique
centrale thermique
industries énergétiques
production d'électricité
ressource énergétique
sucrerie
électricité
énergie

description: Présente la production d'électricité, son potentiel et la répartition de sa production, ainsi que son transport et sa distribution. Deux graphiques et un carton appuient ces propos : un graphique en courbes montre l'évolution des puissances générées par les installations hydrauliques, thermiques et les sucreries de 1958 à 1969, un graphique en courbes montre l'évolution des différents types de production d'électricité (hydrauliques, thermiques et les sucreries) de 1958 à 1969, un carton montre la centrale hydraulique de Takamaka.
description: Relation: http://www.nakala.fr/data/11280/53dfffaf
description: Relation: http://www.nakala.fr/data/11280/22a4cbb5
description: Coverage: La Réunion
description: Coverage: Takamaka
description: Temporal: start=1958; end=1969;
Delegation and stewardship in international organizations
Creators: name: Jankauskas, Vytautas
Publisher: name: Taylor & Francis
Year: 2021
Subjects: subject: Medicine
subject: Genetics
subject: FOS: Biological sciences
subject: Biotechnology
subject: Cancer
subject: Science Policy

description: International organizations (IOs) are driven by political-administrative interactions between member states and IO administrations. To model these interactions and understand their outcomes, scholars have predominantly, and almost exclusively, relied on agency theory. Yet, as this paper argues, delegation can also take a form of stewardship, where goal conflict and information asymmetries are low. In stewardship relationships, member states trust the IO administration, which enables softer, more informal exercise of control. Both agency and stewardship relationships are illustrated in a comparative case study of FAO and WFP. As interview data and document analysis show, while FAO exhibits agency, WFP provides an example for stewardship. The findings imply that conventional Principal-Agent assumptions should not be taken as given. Not all IO administrations are self-serving agents. The findings also provide implications on IO control and performance and call for scholarship to redirect its focus on de facto rather than de jure IO characteristics.
title: ADCO, Cartulaire de Cîteaux pour les domaines de Saint-Jean de Losne et Losne (XVIIIe siècle), Cart. 198-01 (11 H 1055), 185 folios, f. 0019
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/2019
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: cartulaire
subject: Corpus Burgundiae Medii Aevi
subject: Chartes de la Bourgogne du Moyen Âge

description: Cartulaire de Cîteaux pour les domaines de Saint-Jean de Losne et Losne (XVIIIe siècle), Archives départementales de la Côte-d'Or, Cart. 198-01 (11 H 1055), 185 folios, f. 0019, Numérisation en mode image.
description: Relation: http://www.cbma-project.eu/
description: Bibliographic citation: Cartulaire de Cîteaux pour les domaines de Saint-Jean de Losne et Losne (XVIIIe siècle), Archives départementales de la Côte-d'Or, Cart. 198-01 (11 H 1055), 185 folios, f. 0019, in Projet CBMA - Corpus Burgundiae Medii Aevi [Ressource en ligne], https://manuscrits.cbma-project.eu/
description: Provenance: https://www.geonames.org/3024876
description: Provenance: http://www.idref.fr/030974844/id
description: Provenance: https://catalogue.bnf.fr/ark:/12148/cb12228351v
description: Provenance: abbaye de Cîteaux
description: Provenance: http://www.wikidata.org/entity/Q843261
Online Learning in Online Auctions
Creators: name: Avrim  Blum
name: Kumar, Vijay
name: Atri  Rudra
name: Wu, Felix
Publisher: name: Carnegie Mellon University
Year: 2006
Subjects: subject: 89999 Information and Computing Sciences not elsewhere classified
subject: FOS: Computer and information sciences

description: We consider the problem of revenue maximization in online auctions, that is, auctions in which bids are received and dealt with one-by-one. In this note, we demonstrate that results from online learning can be usefully applied in this context, and we derive a new auction for digital goods that achieves a constant competitive ratio with respect to the best possible (offline) fixed price revenue. We are primarily concerned with auctions for a single good available in unlimited supply, often described as a digital good, though our techniques may also be useful for the case of limited supply. The problem of designing online auctions for digital goods was first described by Bar- Yossef et al. [3], one of a number of recent papers interested in analyzing revenue-maximizing auctions without making statistical assumptions about the participating bidders [2, 6, 8, 10].
Magnetized Disk-Winds in NGC 3783
Creators: name: Fukumura, Keigo
name: Kazanas, Demosthenes
name: Shrader, Chris
name: Behar, Ehud
name: Tombesi, Francesco
name: Contopoulos, Ioannis
Publisher: name: arXiv
Year: 2017
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: We analyze a 900-ks stacked Chandra/HETG spectrum of NGC 3783 in the context of magnetically-driven accretion-disk wind models in an effort to provide tight constraints on the global conditions of the underlying absorbers. Motivated by the earlier measurements of its absorption measure distribution (AMD) indicating X-ray-absorbing ionic columns that decrease slowly with decreasing ionization parameter, we employ 2D magnetohydrodynamic (MHD) disk-wind models to describe the global outflow. We compute its photoionization structure along with the wind kinematic properties allowing us to further calculate in a self-consistent fashion the shapes of the major X-ray absorption lines. With the wind radial density profile determined by the AMD, the profiles of the ensemble of the observed absorption features are determined by the two global parameters of the MHD wind; i.e. disk inclination θ_obs and wind density normalization n_o. Considering the most significant absorption features in the (~1.8A-20A) range, we show that the MHD-wind is best described by n(r)~6.9e11(r/ro)^-1.15 [cm^-3] and θ_obs=44deg. We argue that winds launched by X-ray heating, radiation pressure or even MHD winds but with steeper radial density profiles are strongly disfavored by data. Considering the properties of Fe K band absorption features (i.e. Fe xxv and Fe xxvi), while typically prominent in the AGN X-ray spectra, they appear to be weak in NGC 3783. For the specific parameters of our model obtained by fitting the AMD and the rest of absorption features, these features are found to be weak in agreement with observation.
description: 37 pages, 7 figs, 3 tables; accepted to ApJ
‘Regime vetting’: a technique to exercise EU market power
Creators: name: Jarlebring, Johannes
Publisher: name: Taylor & Francis
Year: 2021
Subjects: subject: Genetics
subject: FOS: Biological sciences
subject: Pharmacology
subject: 59999 Environmental Sciences not elsewhere classified
subject: FOS: Earth and related environmental sciences
subject: 19999 Mathematical Sciences not elsewhere classified
subject: FOS: Mathematics
subject: Cancer
subject: Science Policy

description: There is a broad consensus that the EU has great sources of power but little agreement on how and when this power is actively leveraged to shape global market regulation. Scholars have noted a widespread fragmentation and called for studies that cover multiple cases and account for how contextual factors influence strategic aims. This article responds to these calls by conceptualizing ‘regime vetting’ as a technique used by the European Union to reach beyond its borders in various sectors. By coining this term, the article enables exploration of a form of active and de-centred power projection that leverages the EU’s main sources of power. The article also offers a typology of four different types of regime vetting and propositions on how internal and external contextual factors systematically shape the strategic uses of regime vetting, thereby contributing to the theoretical discussion on how ‘context matters’ in shaping EU external action.
Online Geometric Optimization in the Bandit Setting Against an Adaptive Adversary
Creators: name: H. Brendan McMahan
name: Avrim  Blum
Publisher: name: Carnegie Mellon University
Year: 1972
Subjects: subject: 89999 Information and Computing Sciences not elsewhere classified
subject: FOS: Computer and information sciences

description: We give an algorithm for the bandit version of a very general online optimization problem considered by Kalai and Vempala [1], for the case of an adaptive adversary.
Magnetic-Moment Fragmentation and Monopole Crystallization
Creators: name: Brooks-Bartlett, Marion
name: Banks, Simon T.
name: Jaubert, Ludovic D. C.
name: Harman-Clarke, Adam
name: Holdsworth, Peter C. W.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: The Coulomb phase, with its dipolar correlations and pinch-point-scattering patterns, is central to discussions of geometrically frustrated systems, from water ice to binary and mixed-valence alloys, as well as numerous examples of frustrated magnets. The emergent Coulomb phase of lattice-based systems has been associated with divergence-free fields and the absence of long-range order. Here, we go beyond this paradigm, demonstrating that a Coulomb phase can emerge naturally as a persistent fluctuating background in an otherwise ordered system. To explain this behavior, we introduce the concept of the fragmentation of the field of magnetic moments into two parts, one giving rise to a magnetic monopole crystal, the other a magnetic fluid with all the characteristics of an emergent Coulomb phase. Our theory is backed up by numerical simulations, and we discuss its importance with regard to the interpretation of a number of experimental results.
Circumstellar environment of the M-type AGB star R Dor. APEX spectral scan at $159.0-368.5$ GHz
Creators: name: De Beck, E.
name: Olofsson, H.
Publisher: name: arXiv
Year: 2018
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: Our current insights into the circumstellar chemistry of asymptotic giant branch (AGB) stars are largely based on studies of carbon-rich stars and stars with high mass-loss rates. In order to expand the current molecular inventory of evolved stars we present a spectral scan of the nearby, oxygen-rich star R Dor, a star with a low mass-loss rate ($\sim2\times10^{-7}M_{\odot}$/yr). We carried out a spectral scan in the frequency ranges 159.0-321.5GHz and 338.5-368.5 GHz (wavelength range 0.8-1.9mm) using the SEPIA/Band-5 and SHeFI instruments on the APEX telescope and we compare it to previous surveys, including one of the oxygen-rich AGB star IK Tau, which has a high mass-loss rate ($\sim5\times10^{-6}M_{\odot}$/yr). The spectrum of R Dor is dominated by emission lines of SO$_2$ and the different isotopologues of SiO. We also detect CO, H$_2$O, HCN, CN, PO, PN, SO, and tentatively TiO$_2$, AlO, and NaCl. Sixteen out of approximately 320 spectral features remain unidentified. Among these is a strong but previously unknown maser at 354.2 GHz, which we suggest could pertain to H$_2$SiO, silanone. With the exception of one, none of these unidentified lines are found in a similarly sensitive survey of IK Tau performed with the IRAM 30m telescope. We present radiative transfer models for five isotopologues of SiO ($^{28}$SiO, $^{29}$SiO, $^{30}$SiO, Si$^{17}$O, Si$^{18}$O), providing constraints on their fractional abundance and radial extent. We derive isotopic ratios for C, O, Si, and S and estimate that R Dor likely had an initial mass in the range 1.3-1.6$M_{\odot}$, in agreement with earlier findings based on models of H$_2$O line emission. From the presence of spectral features recurring in many of the measured thermal and maser emission lines we tentatively identify up to five kinematical components in the outflow of R Dor, indicating deviations from a smooth, spherical wind.
description: 66 pages, 25 figures, Accepted for publication in Astronomy & Astrophysics. Fully reduced FITS spectrum made available through CDS
The use of pseudo-causal narratives in EU policies: the case of the European Union Emergency Trust Fund for Africa
Creators: name: Zaun, Natascha
name: Nantermoz, Olivia
Publisher: name: Taylor & Francis
Year: 2021
Subjects: subject: Medicine
subject: Molecular Biology
subject: 59999 Environmental Sciences not elsewhere classified
subject: FOS: Earth and related environmental sciences
subject: Ecology
subject: FOS: Biological sciences
subject: Sociology
subject: FOS: Sociology
subject: 69999 Biological Sciences not elsewhere classified
subject: Developmental Biology
subject: Science Policy
subject: 110309 Infectious Diseases
subject: FOS: Health sciences

description: The EUTF aims to address the ‘root causes of migration’ by providing development assistance to countries of origin and transit. While it is allegedly based on scientific evidence, scholarly consensus suggests that development assistance is ill-suited to address irregular migration – which is something that some of the actors who designed the EUTF were aware of. We advance a new framework for understanding the emergence and success of pseudo-causal narratives (i.e., narratives relying on unproven and/or disproven causal claims) in EU policymaking. Using frame analysis, we argue that the pseudo-causal ‘root causes’ narrative was adopted against better evidence because it was plausible, compelling and had been used in EU external migration policies before. Faced with the salience of migration and the urgency to act in late 2015, and due to the absence of any clear ideas of what other measures could work, EU actors adopted this narrative to demonstrate that they were actively responding to the ‘crisis’. The narrative met little contestation, since it met the concerns of both those who were keen to stop migration and those who wanted to preserve the core of previous EU development policy.
Epicodakia consettiana Iredale 1930
Creators: name: Glover, Emily A.
name: Taylor, John D.
Publisher: name: Zenodo
Year: 2007
Subjects: Biodiversity
Taxonomy
Animalia
Mollusca
Bivalvia
Lucinida
Lucinidae
Epicodakia
Epicodakia consettiana

description: Epicodakia consettiana Iredale, 1930
(Figs 17; 18A)
Lucina minima Tenison-Woods, 1876: 30 (non Lucina minima Roemer, 1836).
Epicodakia consettiana Iredale, 1930: 391 (replacement name for L. minima).
TYPE MATERIAL. — Syntype of L. minima Tenison-Woods, 1876 (Tasmanian Museum and Art Gallery, Hobart; see May 1903: 114, fig. 12).
TYPE LOCALITY. — Badger Island, Tasmania.
MATERIAL EXAMINED. — Australia. Western Port, Victoria (NMV). — Edithburgh, South Australia (SAM). — Houtman Abrolhos Islands, western Australia (BMNH).
DISTRIBUTION. — Southern Australia.
DESCRIPTION
Small (L to 25 mm), white, sometimes yellow internally, oval, longer than high, not inflated. Sculpture of many (up to 75) narrow, low, closely-spaced radial ribs crossed by regularly-spaced commarginal lamellae, forming small scales on ribs (Fig. 17C). Lunule narrowly lanceolate, not sunken and slightly asymmetrical, with RV extending into LV. Ligament short, external. LV with 2 cardinal teeth, anterior larger and bifid, posterior tiny; two posterior and two anterior lateral teeth; RV with two cardinals, anterior small, posterior larger, and usually bifurcate, with single anterior and posterior laterals. Anterior adductor scar short and detached from pallial line for about 1/2 length. Pallial line entire. Shell margin outside pallial line glossy, edge finely denticulate.
REMARKS
Codakia perobliqua Tate, 1892 and Talocodakia kennethi Iredale, 1936 are possibly conspecific with E. consettiana but further analysis of shell variation is needed to confirm this.
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 137-138, DOI: 10.5281/zenodo.5392295