cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Design principles and optimal performance for molecular motors under realistic constraints
Creators: name: Tu, Yuhai
name: Cao, Yuansheng
Publisher: name: arXiv
Year: 2018
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: Biological Physics (physics.bio-ph)
subject: Subcellular Processes (q-bio.SC)
subject: FOS: Physical sciences
subject: FOS: Biological sciences

description: The performance of a molecular motor, characterized by its power output and energy efficiency, is investigated in the motor design space spanned by the stepping rate function and the motor-track interaction potential. Analytic results and simulations show that a gating mechanism that restricts forward stepping in a narrow window in configuration space is needed for generating high power at physiologically relevant loads. By deriving general thermodynamics laws for nonequilibrium motors, we find that the maximum torque (force) at stall is less than its theoretical limit for any realistic motor-track interactions due to speed fluctuations. Our study reveals a tradeoff for the motor- track interaction: while a strong interaction generates a high power output for forward steps, it also leads to a higher probability of wasteful spontaneous back steps. Our analysis and simulations show that this tradeoff sets a fundamental limit to the maximum motor efficiency in the presence of spontaneous back steps, i.e., loose-coupling. Balancing this tradeoff leads to an optimal design of the motor-track interaction for achieving a maximum efficiency close to 1 for realistic motors that are not perfectly coupled with the energy source.Comparison with existing data and suggestions for future experiments are discussed.
Five questions to be clarified before starting to model conceptually
Creators: name: Sinz, Elmar J.
Publisher: name: Enterprise Modelling and Information Systems Architectures (EMISAJ)
Year: 2021

description: Conceptual modeling looks at the concept of a system. An important property of such a concept is that it can be viewed from at least two perspectives: The perspective of the users of the system and the perspective of the implementers. Based on these different perspectives, five sets of questions are identified that should be sufficiently answered before modeling is started. This is not a guarantee for the success of the modeling project, but it is necessary.
description: Enterprise Modelling and Information Systems Architectures (EMISAJ), Vol. 16 (2021)
Nuclear Astrophysics Before 1957
Creators: name: Salpeter, Edwin E.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Astrophysics (astro-ph)
subject: Nuclear Theory (nucl-th)
subject: History and Philosophy of Physics (physics.hist-ph)
subject: FOS: Physical sciences

description: I discuss especially my summer with Willy Fowler at Kellogg Radiation in 1951, where I did my "triple-alpha" work. I also go back even earlier to Arthur Eddington and Hans Bethe. I also mention the 1953 summer school in Ann Arbor.
description: 16 pages
Embedding k-Outerplanar graphs into ℓ1
Creators: name: Chekuri, Chandra
name: Gupta, Anupam
name: Newman, Ilan
name: Rabinovich, Yuri
name: Sinclair, Alistair
Publisher: name: Carnegie Mellon University
Year: 1996
Subjects: subject: 89999 Information and Computing Sciences not elsewhere classified
subject: FOS: Computer and information sciences

description: We show that the shortest-path metric of any k-outerplanar graph, for any fixed k, can be approximated by a probability distribution over tree metrics with constant distortion, and hence also embedded into l1 with constant distortion. These graphs play a central role in polynomial time approximation schemes for many NP-hard optimization problems on general planar graphs, and include the family of weighted k × n planar grids.This result implies a constant upper bound on the ratio between the sparsest cut and the maximum concurrent flow in multicommodity networks for k-outerplanar graphs, thus extending a classical theorem of Okamura and Seymour [26] for outerplanar graphs, and of Gupta et al. [17] for treewidth-2 graphs. In addition, we obtain improved approximation ratios for k-outerplanar graphs on various problems for which approximation algorithms are based on probabilistic tree embeddings. We also conjecture that our random tree embeddings for k-outerplanar graphs can serve as a building block for more powerful l1 embeddings in future.
X-Ray Emitting Ejecta of Supernova Remnant N132D
Creators: name: Borkowski, Kazimierz J.
name: Hendrick, Sean P.
name: Reynolds, Stephen P.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: The brightest supernova remnant in the Magellanic Clouds, N132D, belongs to the rare class of oxygen-rich remnants, about a dozen objects that show optical emission from pure heavy-element ejecta. They originate in explosions of massive stars that produce large amounts of O, although only a tiny fraction of that O is found to emit at optical wavelengths. We report the detection of substantial amounts of O at X-ray wavelengths in a recent 100 ks Chandra ACIS observation of N132D. A comparison between subarcsecond-resolution Chandra and Hubble images reveals a good match between clumpy X-ray and optically emitting ejecta on large (but not small) scales. Ejecta spectra are dominated by strong lines of He- and H-like O; they exhibit substantial spatial variations partially caused by patchy absorption within the LMC. Because optical ejecta are concentrated in a 5 pc radius elliptical expanding shell, the detected ejecta X-ray emission also originates in this shell.
description: 5 pages, 6 figures, ApJ Letters, in press
title: An analysis of water line profiles in star formation regions observed by the Submillimeter Wave Astronomy Satellite
Creators: name: Ashby, MLN
name: Bergin, EA
name: Plume, R
name: Carpenter, JM
name: Neufeld, DA
name: Chin, G
name: Erickson, NR
name: Goldsmith, PF
name: Harwit, M
name: Howe, JE
name: Kleiner, SC
name: Koch, DG
name: Patten, BM
name: Schieder, R
name: Snell, Ronald L.
name: Stauffer,
name: Tolls, V
name: Wang, Z
name: Winnewisser, G
name: Zhang, YF
name: Melnick, GJ
Publisher: name: University of Massachusetts Amherst
Year: 2000
Subjects: subject: ISM : clouds
subject: ISM : molecules
subject: radio lines : ISM
subject: stars : formation
subject: Astrophysics and Astronomy

description: The published version is located at http://iopscience.iop.org/1538-4357/539/2/L115
description: We present spectral line profiles for the 557 GHz 110 → 101 ground-state rotational transition of ortho-H216O for 18 Galactic star formation regions observed by the Submillimeter Wave Astronomy Satellite. Water is unambiguously detected in every source. The line profiles exhibit a wide variety of shapes, including single-peaked spectra and self-reversed profiles. We interpret these profiles using a Monte Carlo code to model the radiative transport. The observed variations in the line profiles can be explained by variations in the relative strengths of the bulk flow and small-scale turbulent motions within the clouds. Bulk flow (infall, outflow) must be present in some cloud cores, and in certain cases this bulk flow dominates the turbulent motions.
Automatic Generation of 22FDX OpAmp Designs in the Virtuoso® Suite by Incorporating ID-Xplore™ of Intento Design with IIP of Fraunhofer IIS/EAS
Creators: name: Prautsch, Benjamin
name: Eichler, Uwe
name: Iskander, Ramy
name: Bonan, Jose
name: Boutros, Anoukis
name: Nallanathan, Janahan
name: Simonelli, Antoine
name: Wright, Gilles
name: :Unav
Publisher: name: Fraunhofer-Gesellschaft
Year: 2022
Subjects: IntelligentIP

description: With increased device scaling below 45nm, the impact of layout dependent parasitics, in addition to interconnect ones, becomes increasingly difficult to handle. In order to gain early awareness of these effects on design performance, we present an automated flow based on Cadence® Virtuoso® for fast design space exploration, generation of multiple floorplans of sized operational amplifiers, and automatic generation of their final layout views. The generated layouts are automatically routed using a straight-forward routing scheme for faster runtime. The sized designs and their routed layouts are fully generated in two minutes each. Our presented flow combines the following tasks: detailed design space exploration using ID-Xplore™ from Intento Design, an IPC interface to send SKILL commands to Cadence®, template-based layout generators based on the IIP tool from Fraunhofer IIS/EAS, oaScript: the Python scripting language of OpenAccess, and the open source rectangle-packer. In this fully automated flow, the execution of all aforementioned steps is started by a single SKILL command. As a case study, several sized designs and layout variants of an operational amplifier have been generated in GF-22FDX in a matter of minutes. We conclude that designers are provided the possibility to enhance early decision-making using the proposed method. Combined with the Virtuoso® flow, designers will achieve successful chip realization faster and reduce respin count.
Gravitational instability of filamentary molecular clouds, including ambipolar diffusion; Non-isothermal filament
Creators: name: Hosseinirad, Mohammad
name: Abbassi, Shahram
name: Roshan, Mahmood
name: Naficy, Kazem
Publisher: name: arXiv
Year: 2017
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: Recent observations of the filamentary molecular clouds show that their properties deviate from the isothermal equation of state. Theoretical investigations proposed that the logatropic and the polytropic equations of state with negative indexes can provide a better description for these filamentary structures. Here, we aim to compare the effects of these softer non-isothermal equation of states with their isothermal counterpart on the global gravitational instability of a filamentary molecular cloud. By incorporating the ambipolar diffusion, we use the non-ideal magnetohydrodynamics framework for a filament that is threaded by a uniform axial magnetic field. We perturb the fluid and obtain the dispersion relation both for the logatropic and polytropic equations of state by taking the effects of magnetic field and ambipolar diffusion into account. Our results suggest that, in absence of the magnetic field, a softer equation of state makes the system more prone to gravitational instability. We also observed that a moderate magnetic field is able to enhance the stability of the filament in a way that is sensitive to the equation of state in general. However, when the magnetic field is strong, this effect is suppressed and all the equations of state have almost the same stability properties. Moreover, we find that for all the considered equations of state, the ambipolar diffusion has destabilizing effects on the filament.
description: Accepted for publication in MNRAS, 11 pages, 6 figures
A Dynamical Study of the Black Hole X-ray Binary Nova Muscae 1991
Creators: name: Wu, Jianfeng
name: Orosz, Jerome A.
name: McClintock, Jeffrey E.
name: Steeghs, Danny
name: Longa-Pena, Penelope
name: Callanan, Paul J.
name: Gou, Lijun
name: Ho, Luis C.
name: Jonker, Peter G.
name: Reynolds, Mark T.
name: Torres, Manuel A. P.
Publisher: name: arXiv
Year: 2015
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: We present a dynamical study of the Galactic black hole binary system Nova Muscae 1991 (GS/GRS 1124-683). We utilize 72 high resolution Magellan Echellette (MagE) spectra and 72 strictly simultaneous V-band photometric observations; the simultaneity is a unique and crucial feature of this dynamical study. The data were taken on two consecutive nights and cover the full 10.4-hour orbital cycle. The radial velocities of the secondary star are determined by cross-correlating the object spectra with the best-match template spectrum obtained using the same instrument configuration. Based on our independent analysis of five orders of the echellette spectrum, the semi-amplitude of the radial velocity of the secondary is measured to be K_2 = 406.8+/-2.7 km/s, which is consistent with previous work, while the uncertainty is reduced by a factor of 3. The corresponding mass function is f(M) = 3.02+/-0.06 M_\odot. We have also obtained an accurate measurement of the rotational broadening of the stellar absorption lines (v sin i = 85.0+/-2.6 km/s) and hence the mass ratio of the system q = 0.079+/-0.007. Finally, we have measured the spectrum of the non-stellar component of emission that veils the spectrum of the secondary. In a future paper, we will use our veiling-corrected spectrum of the secondary and accurate values of K_2 and q to model multi-color light curves and determine the systemic inclination and the mass of the black hole.
description: ApJ accepted version; minor revision; added a subsection about systematic uncertainties
Eliminating Cycles in the Discrete Torus
Creators: name: Bollobas, Bela
name: Kindler, Guy
name: Leader, Imre
name: O'Donnell, Ryan
Publisher: name: Carnegie Mellon University
Year: 1982
Subjects: subject: 89999 Information and Computing Sciences not elsewhere classified
subject: FOS: Computer and information sciences

description: In this paper we consider the following question: how many vertices of the discrete torus must be deleted so that no topologically nontrivial cycles remain?
Radio-frequency capacitive gate-based sensing
Creators: name: Ahmed, Imtiaz
name: Haigh, James A.
name: Schaal, Simon
name: Barraud, Sylvain
name: Zhu, Yi
name: Lee, Chang-min
name: Amado, Mario
name: Robinson, Jason W. A.
name: Rossi, Alessandro
name: Morton, John J. L.
name: Gonzalez-Zalba, M. Fernando
Publisher: name: arXiv
Year: 2018
Subjects: subject: Applied Physics (physics.app-ph)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Developing fast, accurate and scalable techniques for quantum state readout is an active area in semiconductor-based quantum computing. Here, we present results on dispersive sensing of silicon corner state quantum dots coupled to lumped-element electrical resonators via the gate. The gate capacitance of the quantum device is configured in parallel with a superconducting spiral inductor resulting in resonators with loaded Q-factors in the 400-800 range. For a resonator operating at 330 MHz, we achieve a charge sensitivity of 7.7 $μ$e$/\sqrt{\text{Hz}}$ and, when operating at 616 MHz, we get 1.3 $μ$e$/\sqrt{\text{Hz}}$. We perform a parametric study of the resonator to reveal its optimal operation points and perform a circuit analysis to determine the best resonator design. The results place gate-based sensing at par with the best reported radio-frequency single-electron transistor sensitivities while providing a fast and compact method for quantum state readout.
Electrostatic Latching for Inter-module Adhesion, Power Transfer, and Communication in Modular Robots
Creators: name: M. E. Karagozler
name: Campbell, Jason
name: Fedder, Gary K.
name: Goldstein, Seth C.
name: M. P. Weller
name: B. W. Yoon
Publisher: name: Carnegie Mellon University
Year: 1978
Subjects: subject: 89999 Information and Computing Sciences not elsewhere classified
subject: FOS: Computer and information sciences

description: A simple and robust inter-module latch is possibly the most important component of a modular robotic system. This paper describes a latch based on electric fields and capacitive coupling. Our design provides not only significant adhesion forces, but can also be used for inter-module power transmission and communication. The key insight presented in this paper, and the factor that enables electrostatic adhesion to be effective at the macroscale, is the use of electric field attraction to generate frictional shear forces rather than electric field attraction alone. A second important insight is that a specific degree of flexibility in the electrodes is essential to maximize their mutual coupling and the resulting forces - electrodes which are too flexible or too rigid will perform less well. To evaluate the effectiveness of our latch we incorporate it into a cubic module 28 cm on a side. The result is a latch which requires almost zero static power and yet can hold 0.6 N/cm2 of latch area.
title: ADCO, Neuvième cartulaire de Saint-Étienne de Dijon (1661 - 1684), Cart. 32 (G 136), 745 folios, f. 0235
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
name: Petot, Frédéric
Publisher: name: NAKALA - https://nakala.fr (Huma-Num - CNRS)
publisherIdentifier: https://ror.org/04ces3204
publisherIdentifierScheme: ROR
Year: 2020
Subjects: subject: cartulaire
subject: LaMOP
subject: Laboratoire de Médiévistique Occidentale de Paris
subject: Corpus Burgundiae Medii Aevi
subject: Chartes de la Bourgogne du Moyen Âge

description: Neuvième cartulaire de Saint-Étienne de Dijon (1661 - 1684), Archives départementales de la Côte-d'Or, Cart. 32 (G 136), 745 folios, f. 0235, Numérisation en mode image.
description: Relation: http://www.cbma-project.eu/
description: Bibliographic citation: Neuvième cartulaire de Saint-Étienne de Dijon (1661 - 1684), Archives départementales de la Côte-d'Or, Cart. 32 (G 136), 745 folios, f. 0235, in Projet CBMA - Corpus Burgundiae Medii Aevi [Ressource en ligne], https:// manuscrits.cbma-project.eu/
description: Provenance: abbaye Saint-Étienne de Dijon
description: Provenance: http://www.wikidata.org/entity/Q15945019
Electricity Based External Similarity of Categorical Attributes
Creators: name: Palmer, Christopher R.
name: Faloutsos, Christos
Publisher: name: Carnegie Mellon University
Year: 2013
Subjects: subject: 89999 Information and Computing Sciences not elsewhere classified
subject: FOS: Computer and information sciences

description: Similarity or distance measures are fundamental and critical properties for data mining tools. Categorical attributes abound in databases. The Car Make, Gender, Occupation, etc. fields in a automobile insurance database are very informative. Sadly, categorical data is not easily amenable to similarity computations. A domain expert might manually specify some or all of the similarity relationships, but this is error-prone and not feasible for attributes with large domains, nor is it useful for cross-attribute similarities, such as between Gender and Occupation. External similarity functions define a similarity between, say, Car Makes by looking at how they co-occur with the other categorical attributes. We exploit a rich duality between random walks on graphs and electrical circuits to develop REP, an external similarity function. REP is theoretically grounded while the only prior work was ad-hoc. The usefulness of REP is shown in two experiments. First, we cluster categorical attribute values showing improved inferred relationships. Second, we use REP effectively as a nearest neighbour classifier.
On pointed Hopf algebras associated with the Mathieu simple groups
Creators: name: Fantino, Fernando
Publisher: name: arXiv
Year: 2007
Subjects: subject: Quantum Algebra (math.QA)
subject: FOS: Mathematics
subject: 16W30, 17B37

description: Let G be a Mathieu simple group, s in G, O_s the conjugacy class of s and ρan irreducible representation of the centralizer of s. We prove that either the Nichols algebra B(O_s,ρ) is infinite-dimensional or the braiding of the Yetter-Drinfeld module M(O_s, ρ) is negative. We also show that if G=M22 or M24, then the group algebra of G is the only (up to isomorphisms) finite-dimensional complex pointed Hopf algebra with group-likes isomorphic to G.
description: 41 pages. Abstract and Theorem 1 (Table 1) modified; Subsection 1.3 added; Sections 2-6 (in version 1) put together in a Section 2 (in new version); Section 3 added. References: [AS1] removed, [AF3], [AFGV], [AHS] added. Cite in Theorem 1.2 corrected; Lemmata 1.4 and 1.5 (of v1) put together in Lemma 1.4 (of nv); Lemma 1.5 (of nv) briefly modified
Polarization Coherence Theorem
Creators: name: Eberly, J. H.
name: Qian, X. -F.
name: Vamivakas, A. N.
Publisher: name: arXiv
Year: 2017
Subjects: subject: Optics (physics.optics)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Visibility $V$ and distinguishability $D$ quantify wave-ray duality: $V^2 + D^2 \le 1$. We join them to polarization $P$ via the Polarization Coherence Theorem, a tight equality: $P^2 = V^2 + D^2$.
description: Optica Memorandum, 2 pages
AirCalypse: Can Twitter Help in Urban Air Quality Measurement and Who are the Influential Users?
Creators: name: Pramanik, Prithviraj
name: Mondal, Tamal
name: Nandi, Subrata
name: Saha, Mousumi
Publisher: name: arXiv
Year: 2025
Subjects: subject: Physics and Society (physics.soc-ph)
subject: Computers and Society (cs.CY)
subject: Social and Information Networks (cs.SI)
subject: FOS: Physical sciences
subject: FOS: Computer and information sciences

description: In this digital age, Online Social Media's ubiquity has led it to it's role as a "Sensor". Starting from disaster response to political predictions, online social media like Twitter, have been instrumental and are actively researched areas. In this work, we have focused on something quite insidious in the current context, i.e., air pollution in developing regions. Starting as an empirical study on using Twitter as a "Sensor" to measure air quality, the focal point of this work is to identify the users who have been actively tweeting in the air pollution events in Delhi, the capital of India. From these users, we try to identify the influential ones, who play a significant role in creating the initial awareness and hence act as "Sensors". We have utilized a tailored "TRank" algorithm for finding out the influential users by considering \textit{Retweet, Favorite, and Follower influence} of the users. After ranking the users based on their social influence, we further study the behavior, i.e., perception of pollution from those users' posts with respect to the actual air pollution levels using the physical sensors. The tracking of influential users in air quality monitoring assists in developing a crowd sensed air quality measurement framework, which can augment the physical air quality sensors for raising awareness against air pollution.
description: This paper was published in WWW '20: Companion Proceedings of the Web Conference 2020, pp. 450-445, 2020. DOI: https://doi.org/10.1145/3366424.3382120 Pages: 8, Figures: 6
Additional file 1 of An insertion variant of MGMT disrupts a STAT1 binding site and confers susceptibility to glioma
Creators: name: Huang, Liming
name: Xu, Wenshen
name: Yan, Danfang
name: Shi, Xi
name: You, Xin
name: Xu, Jiaqi
name: You, Pingping
name: Ke, Yuanyuan
name: Dai, Lian
Publisher: name: figshare
Year: 2021
Subjects: subject: Genetics
subject: FOS: Biological sciences

description: Additional file 1: Table S1. Selected characteristics of glioma patients and controls.
Holocene landscape instability in the context of a loessic early Upper Palaeolithic open-air site in the Middle Danube Basin
Creators: name: Pötter, Stephan
name: Chu, Wei
name: Nett, Janina Johanna
name: Schulte, Philipp
Publisher: name: RWTH Aachen University
Year: 2021

description: Abstracts & presentations : EGU General Assembly 2021 / European Geosciences Union. General Assembly EGU General Assembly 2021, vEGU21, online, 19 Apr 2021 - 30 Apr 2021; Göttingen : Copernicus Gesellschaft mbH EGU21-8634, 1 Seite (2021). doi:10.5194/egusphere-egu21-8634
description: Published by Copernicus Gesellschaft mbH, Göttingen
Covariant Helicity-Coupling Amplitudes: A New Formulation
Creators: name: Chung, Suh-Urk
name: Friedrich, Jan
Publisher: name: arXiv
Year: 2007
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We have worked out covariant amplitudes for any two-body decay of a resonance with an arbitrary non-zero mass, which involves arbitrary integer spins in the initial and the final states. One key new ingredient for this work is the application of the total intrinsic spin operator $\vec S$ which is given directly in terms of the generators of the Poincaré group. Using the results of this study, we show how to explore the Lorentz factors which appear naturally, if the momentum-space wave functions are used to form the covariant decay amplitudes. We have devised a method of constructing our covariant decay amplitudes, such that they lead to the Zemach amplitudes when the Lorentz factors are set one.
Effort-limited Fair (ELF) Scheduling for Wireless Networks
Creators: name: Eckhardt, David A.
name: Steenkiste, Peter
Publisher: name: Carnegie Mellon University
Year: 1978
Subjects: subject: 89999 Information and Computing Sciences not elsewhere classified
subject: FOS: Computer and information sciences

description: While packet scheduling for wired links is a maturing area, scheduling of wireless links is less mature. A fundamental difference between wired and wireless links is that wireless media can exhibit substantial rates of link errors, resulting in significant and unpredictable loss of link capacity. This capacity loss results in a special challenge for wireless schedulers. For example, a weighted fair queue (WFQ) scheduler assumes an error free link and specifies how flows should share the link capacity. However, this specification is not sufficient to determine the correct outcome when link capacity is sharply reduced, because flows that have been allocated the same weights may differ greatly in their ability to tolerate throughput loss. In this paper, we first describe the wireless scheduling challenge in terms of an effort-outcome disconnection. Next we propose a novel notion of fairness for wireless links, effort-limited fairness (ELF), which extends WFQ via dynamic weight adjustments. ELF guarantees that all flows experiencing an error rate below a per flow threshold receive their expected service, defined as a specified rate for reserved flows or a specified share of best-effort capacity for best effort flows. After motivating and defining ELF, we present a practical approximation algorithm, which we evaluate through both trace-driven simulation and measurement of a prototype wireless radio network based on the WaveLAN physical layer
Interacting Jets from Binary Protostars
Creators: name: Murphy, G. C.
name: Lery, T.
name: O'Sullivan, S.
name: Spicer, D.
name: Bacciotti, F.
name: Rosen, A.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We investigate potential models that could explain why multiple proto-stellar systems predominantly show single jets. During their formation, stars most frequently produce energetic outflows and jets. However, binary jets have only been observed in a very small number of systems. We model numerically 3D binary jets for various outflow parameters. We also model the propagation of jets from a specific source, namely L1551 IRS 5, known to have two jets, using recent observations as constraints for simulations with a new MHD code. We examine their morphology and dynamics, and produce synthetic emission maps. We find that the two jets interfere up to the stage where one of them is almost destroyed or engulfed into the second one. We are able to reproduce some of the observational features of L1551 such as the bending of the secondary jet. While the effects of orbital motion are negligible over the jets dynamical timeline, their interaction has significant impact on their morphology. If the jets are not strictly parallel, as in most observed cases, we show that the magnetic field can help the collimation and refocusing of both of the two jets.
description: accepted for publication in A&A
Laboratory and On-Sky Validation of the Shaped Pupil Coronagraph's Sensitivity to Low-Order Aberrations With Active Wavefront Control
Creators: name: Currie, Thayne
name: Kasdin, N. Jeremy
name: Groff, Tyler
name: Lozi, Julien
name: Jovanovic, Nemanja
name: Guyon, Olivier
name: Brandt, Timothy
name: Martinache, Frantz
name: Chilcote, Jeffery
name: Skaf, Nour
name: Kuhn, Jonas
name: Patak, Prashant
name: Kudo, Tomoyuki
Publisher: name: arXiv
Year: 2018
Subjects: subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: FOS: Physical sciences

description: We present early laboratory simulations and extensive on-sky tests validating of the performance of a shaped pupil coronagraph (SPC) behind an extreme-AO corrected beam of the Subaru Coronagraphic Extreme Adaptive Optics (SCExAO) system. In tests with the SCExAO internal source/wavefront error simulator, the normalized intensity profile for the SPC degrades more slowly than for the Lyot coronagraph as low-order aberrations reduce the Strehl ratio from extremely high values (S.R. $\sim$ 0.93--0.99) to those characteristic of current ground-based extreme AO systems (S.R. $\sim$ 0.74--0.93) and then slightly lower values down to S.R. $\sim$ 0.57. On-sky SCExAO data taken with the SPC and other coronagraphs for brown dwarf/planet-hosting stars HD 1160 and HR 8799 provide further evidence for the SPC's robustness to low-order aberrations. From H-band Strehl ratios of 80% to 70%, the Lyot coronagraph's performance vs. that of the SPC may degrade even faster on sky than is seen in our internal source simulations. The 5-$σ$ contrast also degrades faster (by a factor of two) for the Lyot than the SPC. The SPC we use was designed as a technology demonstrator only, with a contrast floor, throughput, and outer working angle poorly matched for SCExAO's current AO performance and poorly tuned for imaging the HR 8799 planets. Nevertheless, we detect HR 8799 cde with SCExAO/CHARIS using the SPC in broadband mode, where the S/N for planet e is within 30% of that obtained using the vortex coronagraph. The shaped-pupil coronagraph is a promising design demonstrated to be robust in the presence of low-order aberrations and may be well-suited for future ground and space-based direct imaging observations, especially those focused on follow-up exoplanet characterization and technology demonstration of deep contrast within well-defined regions of the image plane.
description: 11 pages, 9 Figures, 2 Tables; Accepted for publication in PASP
The physical interpretation of the spectrum of black hole quasinormal modes
Creators: name: Maggiore, Michele
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: When a classical black hole is perturbed, its relaxation is governed by a set of quasinormal modes with complex frequencies ω= ω_R+iω_I. We show that this behavior is the same as that of a collection of damped harmonic oscillators whose real frequencies are (ω_R^2+ω_I^2)^{1/2}, rather than simply ω_R. Since, for highly excited modes, ω_I >> ω_R, this observation changes drastically the physical understanding of the black hole spectrum, and forces a reexamination of various results in the literature. In particular, adapting a derivation by Hod, we find that the area of the horizon of a Schwarzschild black hole is quantized in units ΔA=8π\lpl^2, where \lpl is the Planck length (in contrast with the original result ΔA=4\log(3) \lpl^2). The resulting area quantization does not suffer from a number of difficulties of the original proposal; in particular, it is an intrinsic property of the black hole, independent of the spin of the perturbation.
description: 4 pages, 2 figures; v3: added references and comments. To appear in Phys. Rev. Lett
Understanding the Disparities in Mathematics Performance: An Interpretability-Based Examination
Creators: name: Gomez-Talal, Ismael
name: Bote-Curiel, Luis
name: Rojo-Alvarez, Jose Luis
Publisher: name: arXiv
Year: 2025
Subjects: subject: Computers and Society (cs.CY)
subject: FOS: Computer and information sciences

description: Problem. Educational disparities in Mathematics performance are a persistent challenge. This study aims to unravel the complex factors contributing to these disparities among students internationally, with a focus on the interpretability of the contributing factors. Methodology. Utilizing data from the Programme for International Student Assessment (PISA), we conducted rigorous preprocessing and variable selection to prepare for applying binary classification interpretability models. These models were trained using the Stratified K-Fold technique to ensure balanced representation and assessed using six key metrics. Solution. By applying interpretability models such as Shapley Additive Explanations (SHAP) analysis, we identified critical factors impacting student performance, including reading accessibility, critical thinking skills, gender, and geographical location. Results. Our findings reveal significant disparities linked to resource availability, with students from lower socioeconomic backgrounds possessing fewer books and demonstrating lower performance in Mathematics. The geographical analysis highlighted regional educational disparities, with certain areas consistently underperforming in PISA assessments. Gender also emerged as a determinant, with females contributing differently to performance levels across the spectrum. Conclusion. The study provides insights into the multifaceted determinants of student Mathematics performance and suggests potential avenues for future research to explore global interpretability models and further investigate the socioeconomic, cultural, and educational factors at play.
Supplementary macro excel files for calculation of cell size
Creators: name: E. Gilda, Jennifer
name: Ko, Joon-Hyuk
name: Elfassy, Aviv
name: Tropp, Nadav
name: Parnis, Anna
name: Ayalon, Bar
name: Jhe, Wonho
name: Cohen, Shenhav
Publisher: name: figshare
Year: 2021
Subjects: Cell Biology

description: We developed two Excel files:1) A macro Excel spreadsheet (“supplementary excel file.xlsm”) that can be used by non-programmers to calculate the statistical difference between two fiber size distributions, using the statistical tests presented in our manuscript. 2) An Excel add-in file ("Imaris_statistical_analysis_Excel Add-in.xlam"), which should be imported into an Excel file to enable the use of the custom functions that we created in "Supplementary Excel File.xlsm". See instructions page on our “supplementary excel file.xlsm” for more details.
Quantum model of microcavity intersubband electroluminescent devices
Creators: name: De Liberato, Simone
name: Ciuti, Cristiano
Publisher: name: arXiv
Year: 2007
Subjects: subject: Quantum Physics (quant-ph)
subject: Other Condensed Matter (cond-mat.other)
subject: FOS: Physical sciences

description: We present a quantum theoretical analysis of the electroluminescence from an intersubband transition of a quantum well structure embedded in a planar microcavity. By using a cluster factorization method, we have derived a closed set of dynamical equations for the quantum well carrier and cavity photon occupation numbers, the correlation between the cavity field and the intersubband polarization, as well as polarization-polarization contributions. In order to model the electrical excitation, we have considered electron population tunneling from an injector and into an extractor contact. The tunneling rates have been obtained by considering the bare electronic states in the quantum well and the limit of validity of this approximation (broad-band injection) are discussed in detail. We apply the present quantum model to provide a comprehensive description of the electronic transport and optical properties of an intersubband microcavity light emitting diode, accounting for non-radiative carrier relaxation and Pauli blocking. We study the enhancement of the electroluminescence quantum efficiency passing from the weak to the strong polariton coupling regime.
description: Published as Phys. Rev. B 77, 155321 (2008)
Mutual information and spontaneous symmetry breaking
Creators: name: Hamma, A.
name: Giampaolo, S. M.
name: Illuminati, F.
Publisher: name: arXiv
Year: 2015
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We show that the metastable, symmetry-breaking ground states of quantum many-body Hamiltonians have vanishing quantum mutual information between macroscopically separated regions, and are thus the most classical ones among all possible quantum ground states. This statement is obvious only when the symmetry-breaking ground states are simple product states, e.g. at the factorization point. On the other hand, symmetry-breaking states are in general entangled along the entire ordered phase, and to show that they actually feature the least macroscopic correlations compared to their symmetric superpositions is highly non trivial. We prove this result in general, by considering the quantum mutual information based on the $2-$Rényi entanglement entropy and using a locality result stemming from quasi-adiabatic continuation. Moreover, in the paradigmatic case of the exactly solvable one-dimensional quantum $XY$ model, we further verify the general result by considering also the quantum mutual information based on the von Neumann entanglement entropy.
Efficiently supporting ad hoc queries in large datasets of time sequences
Creators: name: Korn, Flip
name: H. V. Jagadish
name: Faloutsos, Christos
Publisher: name: Carnegie Mellon University
Year: 1981
Subjects: subject: 89999 Information and Computing Sciences not elsewhere classified
subject: FOS: Computer and information sciences

description: Ad hoc querying is difficult on very large datasets, since it is usually not possible to have the entire dataset on disk. While compression can be used to decrease the size of the dataset, compressed data is notoriously difficult to index or access. In this paper we consider a very large dataset comprising multiple distinct time sequences. Each point in the sequence is a numerical value. We show how to compress such a dataset into a format that supports ad hoc querying, provided that a small error can be tolerated when the data is uncompressed. Experiments on large, real world datasets (AT&T customer calling patterns) show that the proposed method achieves an average of less than 5% error in any data value after compressing to a mere 2.5% of the original space (i.e., a 40:1 compression ratio), with these numbers not very sensitive to dataset size. Experiments on aggregate queries achieved a 0.5% reconstruction error with a space requirement under 2%.
Eddy diffusivity of quasi-neutrally-buoyant inertial particles
Creators: name: Afonso, Marco Martins
name: Muratore-Ginanneschi, Paolo
name: Gama, Sílvio M. A.
name: Mazzino, Andrea
Publisher: name: arXiv
Year: 2017
Subjects: subject: Fluid Dynamics (physics.flu-dyn)
subject: FOS: Physical sciences

description: We investigate the large-scale transport properties of quasi-neutrally-buoyant inertial particles carried by incompressible zero-mean periodic or steady ergodic flows. We show how to compute large-scale indicators such as the inertial-particle terminal velocity and eddy diffusivity from first principles in a perturbative expansion around the limit of added-mass factor close to unity. Physically, this limit corresponds to the case where the mass density of the particles is constant and close in value to the mass density of the fluid which is also constant. Our approach differs from the usual over-damped expansion inasmuch we do not assume a separation of time scales between thermalization and small-scale convection effects. For general incompressible flows, we derive closed-form cell equations for the auxiliary quantities determining the terminal velocity and effective diffusivity. In the special case of parallel flows these equations admit explicit analytic solution. We use parallel flows to show that our approach enables to shed light onto the behavior of terminal velocity and effective diffusivity for Stokes numbers of the order of unity.
description: 1 figure, submitted to Physical Review Fluids
Object oriented data analysis: Sets of trees
Creators: name: Wang, Haonan
name: Marron, J. S.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Statistics Theory (math.ST)
subject: FOS: Mathematics
subject: 62H99 (Primary); 62G99 (Secondary)

description: Object oriented data analysis is the statistical analysis of populations of complex objects. In the special case of functional data analysis, these data objects are curves, where standard Euclidean approaches, such as principal component analysis, have been very successful. Recent developments in medical image analysis motivate the statistical analysis of populations of more complex data objects which are elements of mildly non-Euclidean spaces, such as Lie groups and symmetric spaces, or of strongly non-Euclidean spaces, such as spaces of tree-structured data objects. These new contexts for object oriented data analysis create several potentially large new interfaces between mathematics and statistics. This point is illustrated through the careful development of a novel mathematical framework for statistical analysis of populations of tree-structured objects.
description: Published in at http://dx.doi.org/10.1214/009053607000000217 the Annals of Statistics (http://www.imstat.org/aos/) by the Institute of Mathematical Statistics (http://www.imstat.org)
Recommended Actions for the American Astronomical Society: CSWA's Perspective on Steps for a more Inclusive Astronomy -- I. Background and Methods
Creators: name: Wexler, Rachel
name: Knezek, Patricia
name: Rudnick, Gregory
name: Zellner, Nicolle
name: Eckert, Kathleen
name: McBride, JoEllen
name: Patterson, Maria
name: Richey, Christina
name: Astronomy, the Committee on the Status of Women in
Publisher: name: arXiv
Year: 2025
Subjects: subject: Physics and Society (physics.soc-ph)
subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: FOS: Physical sciences

description: In a series of two papers, we provide a comprehensive agenda of actions the American Astronomical Society (AAS) can take to create a more diverse and inclusive professional system for astronomers, with a focus on women astronomers. This first paper of the series outlines the background and methods, while the recommendations are treated in the second companion paper (Paper II). We take the stance that since the 2020 Decadal Survey (Astro2020) was delivered in 2021, with its first-ever set of recommendations on the State of the Profession, now is the time for the AAS to take decisive action to transform astronomy into a diverse and inclusive profession. In the spring of 2019, the CSWA surveyed the astronomical community to assess the popularity and feasibility of actions that the AAS can take to reduce harassment and advance career development for women in astronomy. Here we present the quantitative results of that survey and a synopsis of the free response sections, which are publicly accessible. By combining the results of our survey, peer-reviewed academic literature, and findings from many of the white papers submitted to Astro2020, the CSWA has developed 26 specific actions that the AAS can take to help end harassment in astronomy, to advance career development for astronomers who are women and who are other members of historically marginalized groups, and intersections of these populations, and to improve the climate and culture of AAS and AAS-sponsored meetings. This paper presents the data we used to make these recommendations, and the recommendations themselves will be presented in Paper II.
description: 53 pages, 2 figures, anonymized comments from community members, appendix with quantitative survey results. https://baas.aas.org/pub/2025i002/release/1
Battery-like Supercapacitors from Vertically Aligned Carbon Nanofibers Coated Diamond: Design and Demonstrator
Creators: name: Yu, Siyu
name: Yang, Nianjun
name: Vogel, Michael
name: Mandal, Soumen
name: Williams, Oliver A.
name: Jiang, Siyu
name: Schönherr, Holger
name: Yang, Bing
name: Jiang, Xin
Publisher: name: arXiv
Year: 2018
Subjects: subject: Applied Physics (physics.app-ph)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Battery-like supercapacitors feature high power and energy densities as well as long-term capacitance retention. The utilized capacitor electrodes are thus better to have large surface areas, high conductivity, high stability, and importantly be of binder free. Herein, vertically aligned carbon nanofibers (CNFs) coated boron-doped diamonds (BDD) are employed as the capacitor electrodes to construct battery-like supercapacitors. Grown via a thermal chemical vapor deposition technique, these CNFs/BDD hybrid films are binder free and own porous structures, resulting in large surface areas. Meanwhile, the containment of graphene layers and copper metal catalysts inside CNFs/BDD leads to their high conductivity. Electric double layer capacitors (EDLCs) and pseudocapacitors (PCs) are then constructed in the inert electrolyte (1.0 M H2SO4 solution) and in the redox-active electrolyte (1.0 M Na2SO4 + 0.05 M Fe(CN)63-/4-), respectively. For assembled two-electrode symmetrical supercapacitor devices, the capacitances of EDLC and PC devices reach 30 and 48 mF cm-2 at 10 mV s-1, respectively. They remain constant even after 10 000 cycles. The power densities are 27.3 kW kg-1 and 25.3 kW kg-1 for EDLC and PC devices, together with their energy densities of 22.9 Wh kg-1 and 44.1 Wh kg-1, respectively. The performance of formed EDLC and PC devices is comparable to market-available batteries. Therefore, the vertically aligned CNFs/BDD hybrid film is a suitable capacitor electrode material to construct high-performance battery-like and industry-orientated supercapacitors for flexible power devices.
title: ADCO, Comptes du Petit-Cîteaux (1477-1491) (11 H 1179), f. 00441
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
name: Petot, Frédéric
name: Archives Départementales De La Côte-D'Or
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
subject: comptes

description: Comptes du Petit-Cîteaux (1477-1491), Archives départementales de la Côte-d'Or, (11 H 1179). Numérisation en mode image.
description: Relation: http://www.cbma-project.eu/
description: Bibliographic citation: Comptes du Petit-Cîteaux (1477-1491), Archives départementales de la Côte-d'Or, (11 H 1179), f. 00441, 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