cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
$N$-tag Probability Law of the Symmetric Exclusion Process
Creators: name: Poncet, Alexis
name: Bénichou, Olivier
name: Démery, Vincent
name: Oshanin, Gleb
Publisher: name: arXiv
Year: 2018
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: The Symmetric Exclusion Process (SEP), in which particles hop symmetrically on a discrete line with hard-core constraints, is a paradigmatic model of subdiffusion in confined systems. This anomalous behavior is a direct consequence of strong spatial correlations induced by the requirement that the particles cannot overtake each other. Even if this fact has been recognised qualitatively for a long time, up to now there is no full quantitative determination of these correlations. Here we study the joint probability distribution of an arbitrary number of tagged particles in the SEP. We determine analytically the large time limit of all cumulants for an arbitrary density of particles, and their full dynamics in the high density limit. In this limit, we unveil a universal scaling form shared by the cumulants and obtain the time-dependent large deviation function of the problem.
Ion suppression correction and data normalization in metabolomics
Creators: name: Mahmud, Iqbal
Publisher: name: Zenodo
Year: 2024
Subjects: subject: Metabolomics
subject: Ion Suppression
subject: Stable Isotope
subject: IROA
subject: normalization
subject: Mass spectrometry
subject: Lipidomics
subject: Data Science

description: Ion suppression is a major problem in mass spectrometry (MS)-based metabolomics; it can dramatically decrease measurement accuracy, precision, and sensitivity. Here we report a method, the IROA TruQuant Workflow, that uses a stable isotope-labeled internal standard (IROA-IS) library plus novel companion algorithms to: 1) measure and correct for ion suppression, and 2) perform Dual MSTUS normalization of MS metabolomic data. We evaluate the method across ion chromatography (IC), hydrophilic interaction liquid chromatography (HILIC), and reversed-phase liquid chromatography (RPLC)-MS systems in both positive and negative ionization modes, with clean and unclean ion sources, and across different biological matrices. Across the broad range of conditions tested, all detected metabolites exhibit ion suppression ranging from 1% to >90% and coefficients of variation ranging from 1% to 20%, but the Workflow and companion algorithms are highly effective at nulling out that suppression and error. To demonstrate a routine application of the Workflow, we employ the Workflow to study ovarian cancer cell response to the enzyme-drug L-asparaginase (ASNase). The IROA-normalized data reveal significant alterations in peptide metabolism, which have not been reported previously. Overall, the Workflow corrects ion suppression across diverse analytical conditions and produces robust normalization of non-targeted metabolomic data.
Dominance of backward stimulated Raman scattering in gas-filled hollow-core photonic crystal fibers
Creators: name: Mridha, Manoj K.
name: Novoa, David
name: Russell, Philip St. J.
Publisher: name: arXiv
Year: 2018
Subjects: subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: Backward stimulated Raman scattering in gases provides a promising route to compression and amplification of a Stokes seed-pulse by counter-propagating against a pump-pulse, as has been already demonstrated in various platforms, mainly in free-space. However, the dynamics governing this process when seeded by noise has not yet been investigated in a fully controllable collinear environment. Here we report the first unambiguous observation of efficient noise-seeded backward stimulated Raman scattering in a hydrogen-filled hollow-core photonic crystal fiber. At high gas pressures, when the backward Raman gain is comparable with, but lower than, the forward gain, we report quantum conversion efficiencies exceeding 40% to the backward Stokes at 683 nm from a narrowband 532-nm-pump. The efficiency increases to 65% when the backward process is seeded by a small amount of back-reflected forward-generated Stokes light. At high pump powers the backward Stokes signal, emitted in a clean fundamental mode and spectrally pure, is unexpectedly always stronger than its forward-propagating counterpart. We attribute this striking observation to the unique temporal dynamics of the interacting fields, which cause the Raman coherence (which takes the form of a moving fine-period Bragg grating) to grow in strength towards the input end of the fiber. A good understanding of this process, together with the rapid development of novel anti-resonant-guiding hollow-core fibers, may lead to improved designs of efficient gas-based Raman lasers and amplifiers operating at wavelengths from the ultraviolet to the mid-infrared.
description: 6 pages and 8 figures in the main section. 4 pages and 5 figures in the supplementary section
Grand Challenge: Optimized Stage Processing for Anomaly Detection on Numerical Data Streams
Creators: name: Amariei, Ciprian
name: Diac, Paul
name: Onica, Emanuel
Publisher: name: arXiv
Year: 2017
Subjects: subject: Performance (cs.PF)
subject: Data Structures and Algorithms (cs.DS)
subject: Software Engineering (cs.SE)
subject: FOS: Computer and information sciences

description: The 2017 Grand Challenge focused on the problem of automatic detection of anomalies for manufacturing equipment. This paper reports the technical details of a solution focused on particular optimizations of the processing stages. These included customized input parsing, fine tuning of a k-means clustering algorithm and probability analysis using a lazy flavor of a Markov chain. We have observed in our custom implementation that carefully tweaking these processing stages at single node level by leveraging various data stream characteristics can yield good performance results. We start the paper with several observations concerning the input data stream, following with our solution description with details on particular optimizations, and we conclude with evaluation and a discussion of obtained results.
title: ADCO, Ordre cistercien : comptes (1403-1423) (11 H 1161), f. 00093
Creators: name: de la Côte-d'Or, Archives départementales
name: Archives Départementales De La Côte-D'Or
name: Petot, Frédérique
name: Projet CBMA
name: CBMA/CG21/F.PETOT/2019
Publisher: name: NAKALA - https://nakala.fr (Huma-Num - CNRS)
publisherIdentifier: https://ror.org/04ces3204
publisherIdentifierScheme: ROR
Year: 2020
Subjects: subject: Corpus Burgundiae Medii Aevi
subject: Chartes de la Bourgogne du Moyen Âge
subject: comptes
subject: LaMOP
subject: Laboratoire de Médiévistique Occidentale de Paris

description: Ordre cistercien : comptes (1403-1423), Archives départementales de la Côte-d'Or, (11 H 1161). Numérisation en mode image.
description: Relation: http://www.cbma-project.eu/
description: Bibliographic citation: Ordre cistercien : comptes (1403-1423), Archives départementales de la Côte-d'Or, (11 H 1161), f. 00093, in Projet CBMA - Corpus Burgundiae Medii Aevi \[Ressource en ligne\], https:// manuscrits.cbma-project.eu/
Base-induced formation of Nitrobenzene radical
Creators: name: Reta, Daniel
Publisher: name: Zenodo
Year: 2024

description: Radical-containing nitroarenes afford non-conventional reaction pathways with a broad scope of applications. For instance, in synthesis, they have been inventively exploited for olefin dihydroxylation,[1] hydrogen atom transfer[2] or transannulation[3] processes, while in biology they play a key role in the metabolic cycle of aerobic nitroreductases.[4] Radical formation in nitroarene compounds occurs either electrochemically,[5] by photoexcitation[6] or via reaction with bases,[7] but direct characterisation of the radical by means of electron paramagnetic resonance (EPR) is usually only possible in the former case, since the other procedures result in intermediate species. Thus, in our view, the method that yields structural and electronic information imposes conditions that are not the most suitable for more general syntheses. As such, we believe that studying whether nitroarenes radicals can be formed and characterized in simple conditions holds the potential to expand their transformative chemistry.

Here, building on previous studies,[7] we report our first attempts to address this possibility. We study the simplest nitroarene, i.e., nitrobenzene, in presence of different nucleophilic bases (tert-butyllithium, sodium tert-butoxide, sodium bis(trimethylsilyl)amide, sodium isopropyl cyclopentadiene) and solvents (tetrahydrofuran, benzene) in inert atmosphere. Room temperature X-band measurements confirm the formation of a nitro-based radical for all cases, which is stable until exposed to air. Density functional theory calculations indicate that the process is driven by a single electron transfer from the base to the nitrobenzene, but the oxidised base was not detected. To the best of our knowledge, this is the first-time nitrobenzene radical is generated by simple bases and characterised by EPR. Current efforts in the group focus on exploiting these stable radicals for novel synthetic procedures.

[1]    Hampton, C.; Simonetti, M.; Leonori, D. Angew. Chem. Int. Ed. 2023, 62, e202214508

[2]    Lu, C.; Su, Z.; Jing, D.; Jin, S.; Xie, L.; Li, L.; Zheng, K. Org. Lett. 2019, 21, 1438–1443.

[3]   Shoberu, A.; Li, C.K.; Qian H. F.; Zou. J.-P.Org. Chem. Front. 2021, 8, 5821-5830.

[4]   Wardman P. Environ Health Perspect. 1985, 64, 309-320.

[5]   Geske, D. H.; Maki, A. H. J. Am. Chem. Soc. 1960, 82, 2671– 2676.

[6]   Gkizis, P. L.; Triandafillidi, I.; Kokotos, c. G. Chem. 2023, 9, 3401–3414

[7]   Buncel, E.; Menon, B. C. J. Am. Chem. Soc. 1980, 102, 3499– 3507.
Directional Recurrence for Infinite Measure Preserving Z^d Actions
Creators: name: Johnson, Aimee S. A.
name: Sahin, Ayse A.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Dynamical Systems (math.DS)
subject: FOS: Mathematics
subject: 37A15, 37A40, 37A35

description: We define directional recurrence for infinite measure preserving Z^d actions both intrinsically and via the unit suspension flow and prove that the two definitions are equivalent. We study the structure of the set of recurrent directions and show it is always a G_delta set. We construct an example of a recurrent action with no recurrent directions, answering a question posed in a 2007 paper of Daniel J. Rudolph. We also show by example that it is possible for a recurrent action to not be recurrent in an irrational direction even if all its sub-actions are recurrent.
description: Corrections to proof of Proposition 3.3 and other minor edits to assist with readibility. Version to appear in ETDS
The VLT-FLAMES survey of massive stars: rotation and nitrogen enrichment as the key to understanding massive star evolution
Creators: name: Hunter, I.
name: Brott, I.
name: Lennon, D. J.
name: Langer, N.
name: Dufton, P. L.
name: Trundle, C.
name: Smartt, S. J.
name: de Koter, A.
name: Evans, C. J.
name: Ryans, R. S. I.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: Rotation has become an important element in evolutionary models of massive stars, specifically via the prediction of rotational mixing. Here, we study a sample of stars, including rapid rotators, to constrain such models and use nitrogen enrichments as a probe of the mixing process. Chemical compositions (C, N, O, Mg and Si) have been estimated for 135 early B-type stars in the Large Magellanic Cloud with projected rotational velocities up to ~300km/s using a non-LTE TLUSTY model atmosphere grid. Evolutionary models, including rotational mixing, have been generated attempting to reproduce these observations by adjusting the overshooting and rotational mixing parameters and produce reasonable agreement with 60% of our core hydrogen burning sample. We find (excluding known binaries) a significant population of highly nitrogen enriched intrinsic slow rotators vsini less than 50km/s incompatible with our models ~20% of the sample). Furthermore, while we find fast rotators with enrichments in agreement with the models, the observation of evolved (log g less than 3.7dex) fast rotators that are relatively unenriched (a further ~20% of the sample) challenges the concept of rotational mixing. We also find that 70% of our blue supergiant sample cannot have evolved directly from the hydrogen burning main-sequence. We are left with a picture where invoking binarity and perhaps fossil magnetic fields are required to understand the surface properties of a population of massive main sequence stars.
description: ApJL. 10 pages, 1 figure. Updated to match accepted version
Tailoring Lattice Strain and Ferroelectric Polarization of Epitaxial BaTiO3 Thin Films on Si(001)
Creators: name: Lyu, Jike
name: Fina, Ignasi
name: Solanas, Raul
name: Fontcuberta, Josep
name: Sanchez, Florencio
Publisher: name: arXiv
Year: 2018
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Ferroelectric BaTiO3 films with large polarization have been integrated with Si(001) by pulsed laser deposition. High quality c-oriented epitaxial films are obtained in a substrate temperature range of about 300 deg C wide. The deposition temperature critically affects the growth kinetics and thermodynamics balance, resulting on a high impact in the strain of the BaTiO3 polar axis, which can exceed 2% in films thicker than 100 nm. The ferroelectric polarization scales with the strain and therefore deposition temperature can be used as an efficient tool to tailor ferroelectric polarization. The developed strategy overcomes the main limitations of the conventional strain engineering methodologies based on substrate selection: it can be applied to films on specific substrates including Si(001) and perovskites, and it is not restricted to ultrathin films.
description: Scientific Reports, Open access, https://www.nature.com/articles/s41598-017-18842-5
Oriented bivariant theory II- Algebraic cobordism of $S$-schemes -
Creators: name: Yokura, Shoji
Publisher: name: arXiv
Year: 2017
Subjects: subject: Algebraic Geometry (math.AG)
subject: Algebraic Topology (math.AT)
subject: FOS: Mathematics

description: This is a sequel to our previous paper of oriented bivariant theory [14]. In 2001 M. Levine and F. Morel constructed algebraic cobordism $Ω_*(X)$ for schemes $X$ over a field $k$ in an abstract way and later M. Levine and R. Pandhairpande reconstructed it more geometrically. In this paper in a similar manner we construct an algebraic cobordism $Ω^*(X \xrightarrow {π_X} S)$ for a scheme $X$ over a fixed scheme $S$ in such a way that if the target scheme $S$ is the point $pt = \operatorname{Spec} k$, then $Ω^{-i}(X \xrightarrow {π_X} pt)$ is isomorphic to Levine-Morel's algebraic cobordism $Ω_i(X)$
description: 35 pages; any comments are welcome
On Provably Safe Obstacle Avoidance for Autonomous Robotic Ground Vehicles
Creators: name: Mitsch, Stefan
name: Ghorbal, Khalil
name: Platzer, Andre
Publisher: name: Carnegie Mellon University
Year: 1997
Subjects: subject: 89999 Information and Computing Sciences not elsewhere classified
subject: FOS: Computer and information sciences

description: Nowadays, robots interact more frequently with a dynamic environment outside limited manufacturing sites and in close proximity with humans. Thus, safety of motion and obstacle avoidance are vital safety features of such robots. We formally study two safety properties of avoiding both stationary and moving obstacles: (i) passive safety, which ensures that no collisions can happen while the robot moves, and (ii) the stronger passive friendly safety in which the robot further maintains sufficient maneuvering distance for obstacles to avoid collision as well. We use hybrid system models and theorem proving techniques that describe and formally verify the robot’s discrete control decisions along with its continuous, physical motion. Moreover, we formally prove that safety can still be guaranteed despite location and actuator uncertainty.
Multipartite entangled states in particle mixing
Creators: name: Blasone, M.
name: Dell'Anno, F.
name: De Siena, S.
name: Di Mauro, M.
name: Illuminati, F.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Quantum Physics (quant-ph)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: In the physics of flavor mixing, the flavor states are given by superpositions of mass eigenstates. By using the occupation number to define a multiqubit space, the flavor states can be interpreted as multipartite mode-entangled states. By exploiting a suitable global measure of entanglement, based on the entropies related to all possible bipartitions of the system, we analyze the correlation properties of such states in the instances of three- and four-flavor mixing. Depending on the mixing parameters, and, in particular, on the values taken by the free phases, responsible for the CP-violation, entanglement concentrates in preferred bipartitions. We quantify in detail the amount and the distribution of entanglement in the physically relevant cases of flavor mixing in quark and neutrino systems. By using the wave packet description for localized particles, we use the global measure of entanglement, suitably adapted for the instance of multipartite mixed states, to analyze the decoherence induced by the free evolution dynamics on the quantum correlations of stationary neutrino beams. We define a decoherence length as the distance associated with the vanishing of the coherent interference effects among massive neutrino states. We investigate the role of the CP-violating phase in the decoherence process.
description: 18 pages, 7 figures
Interaction of galactic wind with halo gas and the origin of multiphase extraplanar material
Creators: name: Sharma, Mahavir
name: Nath, Biman B.
name: Chattopadhyay, Indranil
name: Shchekinov, Yuri
Publisher: name: arXiv
Year: 2013
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: We study the interaction of galactic wind with hot halo gas using hydrodynamical simulations. We find that the outcome of this interaction depends crucially on the wind injection density and velocity. Various phases of the extraplanar media such as high velocity clouds (HVCs), outflowing clouds, and OVI regions can originate in the interaction zones of wind with the halo gas, depending on the injection velocity and density. In our simulations the size of the HVCs is of the order of 100 pc. The total mass contained in the clouds is 10^5 -- 10^7 M_sun and they have a normal distribution of velocities in the galactic standard of rest frame, similar to HVCs. For high injection density and velocity, a significant number of clouds move outwards and resemble the case of cold neutral outflows. Furthermore a 10^5 -- 10^6 K phase is formed in our simulations which has a column density ~ 10^{18} cm^{-2}, and resembles the observed OVI regions. The injection velocity and density are linked with the mass loading factor of the outflow, efficiency of energy injection due to supernovae and the SFR. Comparison of the predicted morphology of extraplanar gas with observations can serve as a useful diagnostic for constraining feedback efficiency of outflows.
description: 11 pages, 11 figures, Submitted to MNRAS, Revised Version, Added information on feedback parameters, analysis on cloud properties and comparison with HVCs
Results of the Swift Monitoring Campaign of the X-ray Binary 4U 1957+11: Constraints on Binary Parameters
Creators: name: Maitra, Dipankar
name: Miller, Jon M.
name: Reynolds, Mark T.
name: Reis, Rubens
name: Nowak, Mike
Publisher: name: arXiv
Year: 2013
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: We present new results of uniform spectral analysis of Swift/XRT observations of the X-ray binary system 4U 1957+11. This includes 26 observations of the source made between MJD 54282$-$55890 (2007 July 01 $-$ 2011 November 25). All 26 spectra are predominantly thermal, and can be modeled well with emission from an accretion disk around a black hole. We analyze all 26 spectra jointly using traditional chi-squared fitting as well as Markov Chain Monte Carlo simulations. The results from both methods agree, and constrains on model parameters like inclination, column density, and black hole spin. These results indicate that the X-ray emitting inner accretion disk is inclined to our line-of-sight by $77.6^{+1.5}_{-2.2}$ degrees. Additionally, the other constraints we obtain on parameters like the column density and black hole spin are consistent with previous X-ray observations. Distances less than 5 kpc are unlikely and not only ruled out based on our analysis but also from other independent observations. Based on model-derived bolometric luminosities, we require the source distance to be >10 kpc if the black hole's mass is >10 M$_{Sun}$. If the hole's mass is <10 M$_{Sun}$, then the distance could be in the range of 5$-$10 kpc.
description: Accepted for publication in ApJ. Uses emulateapj style. 14 pages, 11 figures, 3 tables
Can a Computer Laugh ?
Creators: name: Suslov, I. M.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Computation and Language (cs.CL)
subject: Artificial Intelligence (cs.AI)
subject: Neurons and Cognition (q-bio.NC)
subject: FOS: Computer and information sciences
subject: FOS: Biological sciences

description: A computer model of "a sense of humour" suggested previously [arXiv:0711.2058,0711.2061], relating the humorous effect with a specific malfunction in information processing, is given in somewhat different exposition. Psychological aspects of humour are elaborated more thoroughly. The mechanism of laughter is formulated on the more general level. Detailed discussion is presented for the higher levels of information processing, which are responsible for a perception of complex samples of humour. Development of a sense of humour in the process of evolution is discussed.
description: English translation of the paper in Russian; 18 pages, 6 figures included
A quantum Goldman bracket in 2+1 quantum gravity
Creators: name: Nelson, J. E.
name: Picken, R. F.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Mathematical Physics (math-ph)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences
subject: 83C45

description: In the context of quantum gravity for spacetimes of dimension 2+1, we describe progress in the construction of a quantum Goldman bracket for intersecting loops on surfaces. Using piecewise linear paths in R^2 (representing loops on the spatial manifold, i.e. the torus) and a quantum connection with noncommuting components, we review how holonomies and Wilson loops for two homotopic paths are related by phases in terms of the signed area between them. Paths rerouted at intersection points with other paths occur on the r.h.s. of the Goldman bracket. To better understand their nature we introduce the concept of integer points inside the parallelogram spanned by two intersecting paths, and show that the rerouted paths must necessarily pass through these integer points.
description: 9 pages, 4 figures, dedication added, very minor corrections
β-supergravity: a ten-dimensional theory with non-geometric fluxes, and its geometric framework
Creators: name: Andriot, David
name: Betz, Andre
Publisher: name: arXiv
Year: 2013
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Mathematical Physics (math-ph)
subject: Differential Geometry (math.DG)
subject: FOS: Physical sciences
subject: FOS: Mathematics

description: We present a ten-dimensional theory, named β-supergravity, that contains non-geometric fluxes and could uplift some four-dimensional gauged supergravities. Building on earlier work, we study here its NSNS sector, where Q- and R-fluxes are precisely identified. Interestingly, the Q-flux is captured in an analogue of the Levi-Civita spin connection, giving rise to a second curvature scalar. We reproduce the ten-dimensional Lagrangian using the Generalized Geometry formalism; this provides us with enlightening interpretations of the new structures. Then, we derive the equations of motion of our theory, and finally discuss further aspects: the dimensional reduction to four dimensions and comparison to gauged supergravities, the obtention of ten-dimensional purely NSNS solutions, the extensions to other sectors and new objects, the supergravity limit, and eventually the symmetries, in particular the βgauge transformation. We also introduce the related notion of a generalized cotangent bundle.
description: v3: typos corrected, published version
title: ADCO, Boursier de Cîteaux : comptes (1489-1493) (11 H 1166), f. 00207
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: CBMA/CG21/F.PETOT/2019
Publisher: name: NAKALA - https://nakala.fr (Huma-Num - CNRS)
publisherIdentifier: https://ror.org/04ces3204
publisherIdentifierScheme: ROR
Year: 2020
Subjects: subject: comptes
subject: LaMOP
subject: Laboratoire de Médiévistique Occidentale de Paris
subject: Corpus Burgundiae Medii Aevi
subject: Chartes de la Bourgogne du Moyen Âge

description: Boursier de Cîteaux : comptes (1489-1493), Archives départementales de la Côte-d'Or, (11 H 1166). Numérisation en mode image.
description: Relation: http://www.cbma-project.eu/
description: Bibliographic citation: Boursier de Cîteaux : comptes (1489-1493), Archives départementales de la Côte-d'Or, (11 H 1166), f. 00207, in Projet CBMA - Corpus Burgundiae Medii Aevi \[Ressource en ligne\], https:// manuscrits.cbma-project.eu/
description: Provenance: abbaye de Cîteaux
description: Provenance: http://www.wikidata.org/entity/Q843261
description: Provenance: https://www.geonames.org/3024876
description: Provenance: http://www.idref.fr/030974844/id
description: Provenance: https://catalogue.bnf.fr/ark:/12148/cb12228351v
Tensor calculus for supergravity on a manifold with boundary
Creators: name: Belyaev, Dmitry V.
name: van Nieuwenhuizen, Peter
Publisher: name: arXiv
Year: 2007
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: Using the simple setting of 3D N=1 supergravity, we show how the tensor calculus of supergravity can be extended to manifolds with boundary. We present an extension of the standard F-density formula which yields supersymmetric bulk-plus-boundary actions. To construct additional separately supersymmetric boundary actions, we decompose bulk supergravity and bulk matter multiplets into co-dimension one submultiplets. As an illustration we obtain the supersymmetric extension of the York-Gibbons-Hawking extrinsic curvature boundary term. We emphasize that our construction does not require any boundary conditions on off-shell fields. This gives a significant improvement over the existing orbifold supergravity tensor calculus.
description: 20 pages, JHEP format; published version
Gradient bounds for Wachspress coordinates on polytopes
Creators: name: Floater, Michael
name: Gillette, Andrew
name: Sukumar, N.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Numerical Analysis (math.NA)
subject: FOS: Mathematics
subject: 65D05, 65N30, 41A25, 41A30

description: We derive upper and lower bounds on the gradients of Wachspress coordinates defined over any simple convex d-dimensional polytope P. The bounds are in terms of a single geometric quantity h_*, which denotes the minimum distance between a vertex of P and any hyperplane containing a non-incident face. We prove that the upper bound is sharp for d=2 and analyze the bounds in the special cases of hypercubes and simplices. Additionally, we provide an implementation of the Wachspress coordinates on convex polyhedra using Matlab and employ them in a 3D finite element solution of the Poisson equation on a non-trivial polyhedral mesh. As expected from the upper bound derivation, the H^1-norm of the error in the method converges at a linear rate with respect to the size of the mesh elements.
description: 18 pages, to appear in SINUM
Energy and System Size Dependence of Strangeness Production from SPS to RHIC
Creators: name: Takahashi, Jun
Publisher: name: arXiv
Year: 2007
Subjects: subject: Nuclear Experiment (nucl-ex)
subject: FOS: Physical sciences

description: Strange particle production is an important experimental observable that allows the study of the strongly interacting matter created in relativistic heavy-ion collisions. The STAR experiment at RHIC has a unique capability of measuring identified strange particles over a wide range of acceptance providing a rich set of data to perform a systematic study. In addition to the data from Au+Au collisions, strange particles from p+p and d+Au collisions are also available for comparison and normalization. A new set of data from Cu+Cu reactions at 62 GeV and 200 GeV provides the chance to compare the system size dependence observed in Au+Au collisions with this smaller system size. In addition to the comparison of the yields, a statistical thermal model was used to extract freeze-out characteristics for the different system sizes and collision energies.
description: 6 pages, SQM2007 conference proceedings, to be published in Jornal of Phys. G
A family of single-node second-order boundary schemes for the lattice Boltzmann method
Creators: name: Zhao, Weifeng
name: Yong, Wen-An
Publisher: name: arXiv
Year: 2017
Subjects: subject: Computational Physics (physics.comp-ph)
subject: FOS: Physical sciences

description: In this work, we propose a family of single-node second-order boundary schemes for the lattice Boltzmann method with general collision terms. The construction of the schemes is quite universal and simple, it does not involve concrete lattice Boltzmann models and uses the half-way bounce-back rule as a central step. The constructed schemes are all second-order accurate if so is the bounce-back rule. In addition, the proposed schemes have good stability thanks to convex combinations. The accuracy and stability of several specific schemes are numerically validated for multiple-relaxation-time models in both 2D and 3D.
On Predicting Rare Class with SVM Ensemble in Scene Classification
Creators: name: Yan, Rong
name: Liu, Yan
name: Jin, Rong
name: Hauptmann, Alexander
Publisher: name: Carnegie Mellon University
Year: 1988
Subjects: subject: 89999 Information and Computing Sciences not elsewhere classified
subject: FOS: Computer and information sciences

description: Scene classification is an important technique to infer high-level semantic scene categories from low-level visual features. However, in the real world the positive data for many scenes may be rare, which degrades the performance of many classifiers. In this paper, we propose SVM ensembles to address the rare class problem. Various classifier combination strategies are investigated, including majority voting, sum rule, neural network gater and hierarchical SVMs. We also compare our method with two other common approaches for dealing with the rare class problem. Our experimental results show that hierarchical SVMs can achieve significantly better and more stable performance than other strategies, as well as high computational efficiency.
Strontium and Barium in Aqueous Solution and a Potassium Channel Binding Site
Creators: name: Chaudhari, Mangesh I
name: Rempe, Susan B
Publisher: name: arXiv
Year: 2018
Subjects: subject: Chemical Physics (physics.chem-ph)
subject: FOS: Physical sciences

description: Ion hydration structure and free energy establish criteria for understanding selective ion binding in potassium K+ ion channels, and may be significant to understanding blocking mechanisms as well. Recently, we investigated the hydration properties of Ba2+, the most potent blocker of K+ channels among the simple metal ions. Here, we use a similar method of combining ab initio molecular dynamics simulations, statistical mechanical theory, and electronic structure calculations to probe the fundamental hydration properties of Sr2+, which does not block bacterial K+ channels. The radial distribution of water around Sr2+ suggests a stable 8-fold geometry in the local hydration environment, similar to Ba2+. While the predicted hydration free energy of -331.8 kcal/mol is comparable with the experimental result of -334 kcal/mol, the value is significantly more favorable than the -305 kcal/mol hydration free energy of Ba2+. When placed in the innermost K+ channel blocking site, the solvation free energies and lowest energy structures of both Sr2+ and Ba2+ are nearly unchanged compared with their respective hydration properties. That result suggests that differences in blocking behavior arise due to free energies associated with exchange of water ligands for channel ligands instead of free energies of transfer from water to the binding site.
description: 18 pages, 5 figures
Unconventional Supersymmetry at the Boundary of AdS_4 Supergravity
Creators: name: Andrianopoli, L.
name: Cerchiai, B. L.
name: D'Auria, R.
name: Trigiante, M.
Publisher: name: arXiv
Year: 2018
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: In this paper we perform, in the spirit of the holographic correspondence, a particular asymptotic limit of N=2, AdS_4 supergravity to N=2 supergravity on a locally AdS_3 boundary. Our boundary theory enjoys OSp(2|2) x SO(1,2) invariance and is shown to contain the D=3 super-Chern Simons OSp(2|2) theory considered in [Alvarez:2011gd] and featuring "unconventional local supersymmetry". The model constructed in that reference describes the dynamics of a spin-1/2 Dirac field in the absence of spin 3/2 gravitini and was shown to be relevant for the description of graphene, near the Dirac points, for specific spatial geometries. Our construction yields the model in [Alvarez:2011gd] with a specific prescription on the parameters. In this framework the Dirac spin-1/2 fermion originates from the radial components of the gravitini in D=4.
description: 23 pages
Polyphenolic Content, Antioxidant and Antimicrobial activities of Vernonia mespilifolia Less. Used in Folk Medicine in the Eastern Cape Province, South Africa.pdf
Creators: name: Unuofin, Jeremiah Oshiomame
name: Otunola, Gloria Aderonke
name: Afolayan, Anthony Jide
Publisher: name: figshare
Year: 2018
Subjects: Pharmacology

description: Vernonia mespilifolia Less. is a shrub of the Asteraceae family used in the South African traditional medicine system for themanagement of weight loss, hypertension, and heartwater disease. There is a need for scientific evaluation to validate its ethnomedicinalusage. In vitro assays were conducted to evaluate the polyphenolic content, antioxidant and antimicrobial propertiesof different solvent extracts (acetone, aqueous, and ethanol) of the whole plant of Vernonia mespilifolia spectrophotometric andagar dilution techniques, respectively. The result revealed varying amounts of polyphenolics in the different solvent extractscorresponding to the antioxidant activities. Also, only the acetone and ethanol extracts inhibited the growth of the selectedbacteria and fungi. These findings reveal that the extracts have strong bioactive compounds and hence support its ethnomedicinalapplication.
The images of multilinear polynomials evaluated on $3\times 3$ matrices
Creators: name: Kanel-Belov, Alexei
name: Malev, Sergey
name: Rowen, Louis
Publisher: name: arXiv
Year: 2013
Subjects: subject: Algebraic Geometry (math.AG)
subject: FOS: Mathematics

description: Let $p$ be a multilinear polynomial in several noncommuting variables, with coefficients in a algebraically closed field $K$ of arbitrary characteristic. In this paper we classify the possible images of $p$ evaluated on $3\times 3$ matrices. The image is one of the following: \begin{itemize} \item \{0\}, \item the set of scalar matrices, \item a (Zariski) dense subset of $\sl_3(K)$, the matrices of trace 0, \item a dense subset of $M_3(K)$, \item the set of $3-$scalar matrices (i.e., matrices having eigenvalues $(β, β\varepsilon, β\varepsilon^2)$ where $\varepsilon$ is a cube root of 1), or \item the set of scalars plus $3-$scalar matrices.
title: 01_2514
Creators: name: Wesley Baldwin, John
name: Baldwin, John W.
Publisher: name: NAKALA - https://nakala.fr (Huma-Num - CNRS)
publisherIdentifier: https://ror.org/04ces3204
publisherIdentifierScheme: ROR
Year: 2018
Subjects: subject: LaMOP
subject: Laboratoire de Médiévistique Occidentale de Paris

description: L'ensemble de ces notes ont été crée par John Baldwin lors d'une de ses premières périodes de résidence à Paris. Ces documents comprennent tous les magistri qu’il avait pu rencontrer dans ses sources. Aux XIIème et XIIIème siècles, les universités n'existant pas encore, le titre de magister s'il évoque certainement une compétence n'est pas rattaché de façon systématique au passage par les écoles. De surcroît, les magistris sont le plus souvent désignés par leur seul prénom. La lecture de ces données est donc difficile et suppose un long travail pour tenter d'identifier un individu auquel on pourrait rattacher plusieurs mentions. John Baldwin avait donc renoncé à utiliser ces données pour donner un prolongement à sa magnifique étude sur les gradués d'université et leur emploi par les Capétiens et les Plantagenêts. Néanmoins, il a conservé ces données et elles sont potentiellement très utile dans le cadre de Studium, comme le sont toutes les mentions dans les volumes des Fasti Ecclesiae Gallicanae de chanoines portant ce titre de magister sans autres précisions. L'ampleur des dépouillements rend ces données très utiles et nous devons une grande reconnaissance à John Baldwin pour avoir pris la peine de faire photocopier ses fiches et de nous les avoir transmises amicalement.
Les données ainsi que les images des fiches sont accessibles sur le site Internet à l'adresse suivante : http://studium-baldwin.lamop.fr/.
Les transcriptions des fiches ont été effectuées par des étudiants de Paris 1 Panthéon - Sorbonne mais elles n'ont pas été corrigées par la suite.
description: Relation: https://lamop.hypotheses.org/
On Power-Law Relationships of the Internet Topology
Creators: name: Faloutsos, Michalis
name: Faloutsos, Petros
name: Faloutsos, Christos
Publisher: name: Carnegie Mellon University
Year: 1984
Subjects: subject: 89999 Information and Computing Sciences not elsewhere classified
subject: FOS: Computer and information sciences

description: Despite the apparent randomness of the Internet, we discover some surprisingly simple power-laws of the Internet topology. These power-laws hold for three snapshots of the Internet, between November 1997 and December 1998, despite a 45% growth of its size during that period. We show that our power-laws fit the real data very well resulting in correlation coefficients of 96% or higher.Our observations provide a novel perspective of the structure of the Internet. The power-laws describe concisely skewed distributions of graph properties such as the node outdegree. In addition, these power-laws can be used to estimate important parameters such as the average neighborhood size, and facilitate the design and the performance analysis of protocols. Furthermore, we can use them to generate and select realistic topologies for simulation purposes.
The Enskog equation for confined elastic hard spheres
Creators: name: Maynar, P.
name: de Soria, M. I. García
name: Brey, J. Javier
Publisher: name: arXiv
Year: 2018
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: A kinetic equation for a system of elastic hard spheres or disks confined by a hard wall of arbitrary shape is derived. It is a generalization of the modified Enskog equation in which the effects of the confinement are taken into account and it is supposed to be valid up to moderate densities. From the equation, balance equations for the hydrodynamic fields are derived, identifying the collisional transfer contributions to the pressure tensor and heat flux. A Lyapunov functional, $\mathcal{H}[f]$, is identified. For any solution of the kinetic equation, $\mathcal{H}$ decays monotonically in time until the system reaches the inhomogeneous equilibrium distribution, that is a Maxwellian distribution with a the density field consistent with equilibrium statistical mechanics.
de Sitter Relativity: a New Road to Quantum Gravity?
Creators: name: Aldrovandi, R.
name: Pereira, J. G.
Publisher: name: arXiv
Year: 2007
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: The Poincare' group generalizes the Galilei group for high-velocity kinematics. The de Sitter group is assumed to go one step further, generalizing Poincare' as the group governing high-energy kinematics. In other words, ordinary special relativity is here replaced by de Sitter relativity. In this theory, the cosmological constant is no longer a free parameter, and can be determined in terms of other quantities. When applied to the whole universe, it is able to predict the value of the cosmological constant and to explain the cosmic coincidence. When applied to the propagation of ultra-high energy photons, it gives a good estimate of the time delay observed in extragalactic gamma-ray flares. It can, for this reason, be considered a new paradigm to approach the quantum gravity problem.
description: 18 pages, no figures. v3: Important presentation changes intended to clarify some points of the previous version; title slightly changed and references added. Version to be published in Foundations of Physics
title: Social Media and Mental Health
Creators: name: Braghieri, Luca
name: Levy, Ro'ee
name: Makanin, Alexey
Publisher: name: Universitätsbibliothek der Ludwig-Maximilians-Universität München
Year: 2022

description: The diffusion of social media coincided with a worsening of mental health conditions among adolescents and young adults in the United States, giving rise to speculation that social media might be detrimental to mental health. In this paper, we provide the first quasi-experimental estimates of the impact of social media on mental health by leveraging a unique natural experiment: the staggered introduction of Facebook across U.S. colleges. Our analysis couples data on student mental health around the years of Facebook’s expansion with a generalized difference-in-differences empirical strategy. We find that the roll-out of Facebook at a college increased symptoms of poor mental health, especially depression, and led to increased utilization of mental healthcare services. We also find that, according to the students’ reports, the decline in mental health translated into worse academic performance. Additional evidence on mechanisms suggests the results are due to Facebook fostering unfavorable social comparisons.
On packing R-trees
Creators: name: Kamel, Ibrahim
name: Faloutsos, Christos
Publisher: name: Carnegie Mellon University
Year: 1988
Subjects: subject: 89999 Information and Computing Sciences not elsewhere classified
subject: FOS: Computer and information sciences

description: We propose new R-tree packing techniques for static databases. Given a collection of rectangles, we sort them and build the R-tree bottom-up. There are several ways to sort the rectangles; the innovation of this work is the use of fractals, and specifically the hilbert curve, to achieve better ordering of the rectangles and eventually better packing. We proposed and implemented several variations and performed experiments on synthetic, as well as real data (TIGER files from the U.S. Bureau of Census). The winning variation (’2D-c’) was the one that sorts the rectangles according to the hilbert value of the center. This variation consistently outperforms the packing method of Roussopou- 10S and Leifker [21], as well as other R-tree variants. The performance gain of the our method seems to increase with the skeweness of the data distribution; specifically, on the (highly skewed) TIGER dataset, it achieves up to 58% improvement in response time over the older packing algorithm and 36yo over the best known R-tree variant. We also, introduce an analytical formula to compute the average response time of a range query as a function of the geometric characteristics of the R-tree.
Generating Non-perturbative Physics from Perturbation Theory
Creators: name: Dunne, Gerald V.
name: Unsal, Mithat
Publisher: name: arXiv
Year: 2013
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: In a large variety of quantum mechanical systems, we show that the full non-perturbative expression for energy eigenvalues, containing all orders of perturbative, non-perturbative and quasi-zero-mode terms, may be generated directly from the perturbative expansion about the perturbative vacuum, combined with a single global boundary condition. This provides a dramatic realization of the principle of "resurgence", that the fluctuations about different semiclassical saddle points are related to one another in a precise quantitative manner. The analysis of quantum mechanics also generalizes to certain calculable regimes of quantum field theory.
description: 5 pages; 2 figures; published version in PRD
title: ADCO, Cartulaire général de Cîteaux, dit de Jean de Cirey, (XVe siècle), tome V, Cart. 189 (11 H 74), 316 folios, f. 0143v
Creators: name: de la Côte d'Or, Archives départementales
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: Corpus Burgundiae Medii Aevi
subject: Chartes de la Bourgogne du Moyen Âge
subject: LaMOP
subject: Laboratoire de Médiévistique Occidentale de Paris
subject: cartulaire

description: Cartulaire général de Cîteaux, dit de Jean de Cirey, (XVe siècle), tome V, Archives départementales de la Côte-d'Or, Cart. 189 (11 H 74), 316 folios, f. 0143v, Numérisation en mode image.
description: Relation: http://www.cbma-project.eu/
description: Bibliographic citation: Cartulaire général de Cîteaux, dit de Jean de Cirey, (XVe siècle), tome V, Archives départementales de la Côte-d'Or, Cart. 189 (11 H 74), 316 folios, f. 0143v, 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
Scalar mesons from an effective Lagrangian approach
Creators: name: Fariborz, Amir H.
name: Jora, Renata
name: Schechter, Joseph
Publisher: name: arXiv
Year: 2007
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: A brief discussion of the recent interest in light scalar mesons motivates the study of a generalized linear sigma model. In an SU(3) flavor invariant version of the model there is a prediction that the the lighter scalars have sizeable "four quark" content. It is further predicted that one of the singlet scalars should be exceptionally light. Due to the presence of scalar mesons, the model gives "controlled" corrections to the current algebra formula for threshold pion pion scattering. These corections act in the direction to improve agreement with current experiments.
description: 10 pages, 5 figures, menu 2007 talk