cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Geometric abstractions using medial axis transformation
Creators: name: F. B. Prinz
name: Jyh-Huei  Chern
name: Carnegie Mellon University.Engineering Design Research Center.
Publisher: name: Carnegie Mellon University
Year: 1988
Subjects: subject: Mechanical Engineering
subject: FOS: Mechanical engineering

description: Abstract: "The most important concerns in the design of a product are to ensure that the product serves the purpose it is intended for, and to maintain the producibility of the product at a reasonable cost. Ideally, in design environments, these two concerns should be taken into account. As a result, analyses should be performed from the viewpoint of these concerns. Some of these analyses are purely mathematical in nature, some are entirely heuristic, but quite often they require a treatment which is a mixture of both. In modern computer-aided design (CAD) environments, the products are usually represented by their indiscriminated geometry, such as faces, edges, vertices, primitive solids, etc. Such a mathematical representation is not convenient for heuristic analysis.Heuristic reasoning is expressed in terms of high level abstractions. One formalism to capture these abstractions is to view the products in terms of its features. Features are a way of representing patterns in form or in function. In essence, they are meant to facilitate the practice of design and reasoning about the designed object. Therefore, features emerge as the link to bridge the gap between the geometry and the heuristic analysis. However, to recognize features directly from geometry is rather difficult. But if an object can be expressed in terms of its skeletal model, then the recognition task might be easier. The features, then, would be viewed as patterns in the skeletal model. Recognizing features in this fashion may turn out to be a much simpler task.The medial axis transformation (MAT) provides one way of getting a skeletal form from the geometry. By incorporating MAT, one can expect the recognition of features from the designed object to become less cumbersome. This article describes a representation of form features using medial axis transformation. The MAT is defined, its properties are studied and its computation is investigated. Furthermore, the MAT data base is established and some examples of extracting features will be given."
A unified way of analyzing some greedy algorithms
Creators: name: Dereventsov, Anton
name: Temlyakov, Vladimir
Publisher: name: arXiv
Year: 2018
Subjects: subject: Numerical Analysis (math.NA)
subject: FOS: Mathematics

description: In this paper we propose a unified way of analyzing a certain kind of greedy-type algorithms in Banach spaces. We define a class of the Weak Biorthogonal Greedy Algorithms that contains a wide range of greedy algorithms. In particular, we show that the following well-known algorithms --- the Weak Chebyshev Greedy Algorithm and the Weak Greedy Algorithm with Free Relaxation --- belong to this class. We investigate the properties of convergence, rate of convergence, and numerical stability of the Weak Biorthogonal Greedy Algorithms. Numerical stability is understood in the sense that the steps of the algorithm are allowed to be performed with controlled computational inaccuracies. We carry out a thorough analysis of the connection between the magnitude of those inaccuracies and the convergence properties of the algorithm. To emphasize the advantage of the proposed approach, we introduce here a new greedy algorithm --- the Rescaled Weak Relaxed Greedy Algorithm --- from the above class, and derive the convergence results without analyzing the algorithm explicitly. Additionally, we explain how the proposed approach can be extended to some other types of greedy algorithms.
Exploring the Leo II dSph I.: The Variable Star Content
Creators: name: Siegel, M. H.
name: Majewski, S. R.
Publisher: name: arXiv
Year: 2000
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We present the first comprehensive catalogue of variable stars in the Leo II dwarf spheroidal galaxy. We have identified 148 RR Lyrae type variables, of which 140 were amenable to derivation of variability parameters with our data. We have also confirmed the existence of four anomalous Cepheids as identified in previous studies. The average period of the RR Lyrae ab variables (0.62 days), the fraction of c variables (0.24) and the minimum period of the RR Lyrae ab variables (0.51 days) all define Leo II as an "Oosterhoff intermediate" galaxy. We have used the properties of these variables to derive a metallicity for Leo II of approximately [Fe/H]=-1.9. The presence of longer period, higher amplitude RR Lyrae variable implies a metallicity distribution that extends to as poor as [Fe/H]=-2.3. Leo II's location on the period-metallicity relation of clusters, like that of other ``Ootershoff intermediate'' objects, falls between the Oosterhoff Class I and Oosterhoff Class II clusters. The properties of the variable populations of these objects are consistent with the idea that the Oosterhoff "dichotomy" is a continuum. The gap between the classes seems to be explained by the horizontal branch of Galactic globular clusters shifting away from the instability strip at at intermediate metallicities. However, Leo II, as well as other Oosterhoff intermediate objects, has a second parameter effect strong enough to leave horizontal branch stars in the instability strip.
description: 44 pages, 8 figures, 3 tables, accepted in Astronomical Journal
Additional file 1 of Decadal variability in land carbon sink efficiency
Creators: name: Zhu, Lei
name: Ciais, Philippe
name: Bastos, Ana
name: Ballantyne, Ashley P.
name: Chevallier, Frederic
name: Gasser, Thomas
name: Kondo, Masayuki
name: Pongratz, Julia
name: Rödenbeck, Christian
name: Li, Wei
Publisher: name: figshare
Year: 2021
Subjects: subject: Ecology
subject: FOS: Biological sciences

description: Additional file 1. Additional figures and tables.
Veganizm
Creators: name: Bulut, Bahar
name: Erkol, Mehmet
Publisher: name: Assoc. Prof. Dr. Yılmaz ARI
Year: 2023

description: Valery Giroux ve Renan Laure tarafından yazılan Veganizm adlı kitabı dilimize Z. Hazal Louze kazandırmış, eser İletişim Yayınları tarafından 2021 yılında basılmıştır. Kitap, giriş bölümüyle birlikte beş bölüm ve sonuç kısmından oluşmaktadır. Kitabın kaynakçası incelendiğinde vegan beslenmeyle ilgili literatürün esas alındığı görülmektedir. Kaynakça içerisinde yer alan tüm yayınlar 2010 yılı ve sonrasını kapsamaktadır. Kaynakların yayım tarihlerine bakıldığında bir yaşam tarzı, etik ve politik bir tutum olarak vegan beslenme; dünyanın güncel konularından birini oluşturmaktadır. Kaynakçada güncel çalışmalar dışında veganlık, hayvan hakları, hayvan etiği konusunda temel çalışmalarıyla bilinen Peter Singer ve Tom Regan da yer almaktadır. Özellikle kitabın hayvan etiği başlığı altındaki bölümünde, düşünürlerin kendi aralarında yer alan tartışmalarına yer verilmektedir (Giroux - Larue, 2021). Bu yönüyle metinler arası bir süreklilik göze çarpmaktadır...
description: Kitap İncelemesi
The order, shape and critical point for the quark-gluon plasma phase transition
Creators: name: Zakout, Ismail
name: Greiner, Carsten
name: Schaffner-Bielich, Jurgen
Publisher: name: arXiv
Year: 2006
Subjects: subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: The order, shape and critical point for the phase transition between the hadronic matter and quark-gluon plasma are considered in a thermodynamical consistent approach. The hadronic phase is taken as Van der Waals gas of all the known hadronic mass spectrum particles $m_H\le 2.0$ GeV as well as Hagedorn bubbles which correspond hadronic states with mass spectrum $m_H> 2.0$ GeV. The density of states for Hagedorn bubbles is derived by calculating the microcanonical ensemble for a bag of quarks and gluons with specific internal color-flavor symmetry. The mixed-grand and microcanonical ensembles are derived for massless and massive flavors. We find Hagedorn bubbles are strongly suppressed in the dilute hadronic matter and they appear just below the line of the phase transition. The order of the phase transition depends on Hagedorn bubble's internal color-flavor structure and the volume fluctuation as well. On the other hand, the highly compressed hadronic matter undergoes a smooth phase transition from the gas of known mass spectrum hadrons to another one dominated by Hagedorn bubbles with specific internal color-flavor structure before the phase transition to quark-gluon plasma takes place at last. The phase transition is found a first order for the intermediate and large chemical potentials. The existence of the tri-critical point depends on the modification of the bubble's internal structure specified by a phenomenological parameter $γ\proptoμ_B$ in the medium.
description: 69 pages, 10 figures
Gas-particle partitioning of primary organic aerosol emissions: (1) Gasoline vehicle exhaust
Creators: name: May, Andrew A.
name: Presto, Albert
name: Hennigan, Christopher J.
name: Nguyen, Ngoc T.
name: Gordon, Timothy D.
name: Robinson, Allen
Publisher: name: Carnegie Mellon University
Year: 2013
Subjects: subject: Mechanical Engineering
subject: FOS: Mechanical engineering

description: The gas-particle partitioning of the primary organic aerosol (POA) emissions from fifty-one light-duty gasoline vehicles (model years 1987–2012) was investigated at the California Air Resources Board Haagen–Smit Laboratory. Each vehicle was operated over the cold-start unified cycle on a chassis dynamometer and its emissions were sampled using a constant volume sampler. Four independent yet complementary approaches were used to investigate POA gas-particle partitioning: sampling artifact correction of quartz filter data, dilution from the constant volume sampler into a portable environmental chamber, heating in a thermodenuder, and thermal desorption/gas chromatography/mass spectrometry analysis of quartz filter samples. This combination of techniques allowed gas-particle partitioning measurements to be made across a wide range of atmospherically relevant conditions – temperatures of 25–100 °C and organic aerosol concentrations of−3. The gas-particle partitioning of the POA emissions varied continuously over this entire range of conditions and essentially none of the POA should be considered non-volatile. Furthermore, for most vehicles, the low levels of dilution used in the constant volume sampler created particle mass concentrations that were greater than a factor of 10 or higher than typical ambient levels. This resulted in large and systematic partitioning biases in the POA emission factors compared to more dilute atmospheric conditions, as the POA emission rates may be over-estimated by nearly a factor of four due to gas-particle partitioning at higher particle mass concentrations. A volatility distribution was derived to quantitatively describe the measured gas-particle partitioning data using absorptive partitioning theory. Although the POA emission factors varied by more than two orders of magnitude across the test fleet, the vehicle-to-vehicle differences in gas-particle partitioning were modest. Therefore, a single volatility distribution can be used to quantitatively describe the gas-particle partitioning of the entire test fleet. This distribution is designed to be applied to quartz filter POA emission factors in order to update emissions inventories for use in chemical transport models.
Non-Critical Poincaré Invariant Bosonic String Backgrounds and Closed String Tachyons
Creators: name: Alvarez, E.
name: Gomez, C.
name: Hernandez, L.
Publisher: name: arXiv
Year: 2000
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: A new family of non critical bosonic string backgrounds in arbitrary space time dimension $D$ and with $ISO(1,D-2)$ Poincaré invariance are presented. The metric warping factor and dilaton agree asymptotically with the linear dilaton background. The closed string tachyon equation of motion enjoys, in the linear approximation, an exact solution of ``kink'' type interpolating between different expectation values. A renormalization group flow interpretation ,based on a closed string tachyon potential of type $-T^{2}e^{-T}$, is suggested.
description: latex, 16 pages, 4 figures, misprints corrected
The TROY project: Searching for co-orbital bodies to known planets. I. Project goals and first results from archival radial velocity
Creators: name: Lillo-Box, J.
name: Barrado, D.
name: Figueira, P.
name: Leleu, A.
name: Santos, N. C.
name: Correia, A. C. M.
name: Robutel, P.
name: Faria, J. P.
Publisher: name: arXiv
Year: 2017
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: FOS: Physical sciences

description: The detection of Earth-like planets, exocomets or Kuiper belts show that the different components found in the solar system should also be present in other planetary systems. Trojans are one of these components and can be considered fossils of the first stages in the life of planetary systems. Their detection in extrasolar systems would open a new scientific window to investigate formation and migration processes. In this context, the main goal of the TROY project is to detect exotrojans for the first time and to measure their occurrence rate (eta-Trojan). In this first paper, we describe the goals and methodology of the project. Additionally, we used archival radial velocity data of 46 planetary systems to place upper limits on the mass of possible trojans and investigate the presence of co-orbital planets down to several tens of Earth masses. We used archival radial velocity data of 46 close-in (P<5 days) transiting planets (without detected companions) with information from high-precision radial velocity instruments. We took advantage of the time of mid-transit and secondary eclipses (when available) to constrain the possible presence of additional objects co-orbiting the star along with the planet. This, together with a good phase coverage, breaks the degeneracy between a trojan planet signature and signals coming from additional planets or underestimated eccentricity. We identify nine systems for which the archival data provide 1-sigma evidence for a mass imbalance between L4 and L5. Two of these systems provide 2-sigma detection, but no significant detection is found among our sample. We also report upper limits to the masses at L4/L5 in all studied systems and discuss the results in the context of previous findings.
description: Accepted for publication in A&A, 18 pages, 7 figures, 6 tables. Project website: http://www.sc.eso.org/~jlillobo/troy/
Direct relation between the low-energy spin excitations and superconductivity of overdoped high-$T_c$ superconductors
Creators: name: Wakimoto, S.
name: Zhang, H.
name: Yamada, K.
name: Swainson, I.
name: Kim, Hyunkyung
name: Birgeneau, R. J.
Publisher: name: arXiv
Year: 2003
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: The dynamic spin susceptibility, $χ''(ω)$, has been measured over the energy range of $2 \leq ω\leq 10$ meV for overdoped La$_{2-x}$Sr$_{x}$CuO$_{4}$. Incommensurate (IC) spin excitations are observed at 8 K for all superconducting samples for $0.25 \leq x \leq 0.28$ with $χ''$ peaking at $\sim 6$ meV. The IC peaks at 6 meV become smaller in intensity with increasing $x$ and, finally, become unobservable for a sample with $x=0.30$ which has no bulk superconductivity. The maximum $χ''$ decreases linearly with $T_c$(onset) in the overdoped region, implying a direct cooperative relation between the spin fluctuations and the superconductivity.
description: 4 pages, 4 figures
Relativistic Coulomb excitation at small impact parameters
Creators: name: Bayman, B. F.
name: Zardi, F.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: The semiclassical model of relativistic Coulomb excitation is studied in situations in which the impact parameter is small enough so that projectile and target charge distributions overlap. The electromagnetic effects of this overlap are shown to be small. Realistic nucleon-nucleon reaction cross-sections, and realistic nuclear radial charge and matter distributions are used to determine a formula for the lower impact parameter limit to be used in the calculation of the Coulomb excitation cross-section. A wide selection of projectile-target pairs is explored, in the bombarding energy range of 1 GeV to 5 GeV per nucleon.
description: 19 pages, 3 figures
StarFinder: an IDL GUI based code to analyze crowded fields with isoplanatic correcting PSF fitting
Creators: name: Diolaiti, E.
name: Bendinelli, O.
name: Bonaccini, D.
name: Close, L. M.
name: Currie, D. G.
name: Parmeggiani, G.
Publisher: name: arXiv
Year: 2000
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: StarFinder is a new code for the deep analysis of stellar fields, designed for well-sampled images with high and low Strehl ratio. It is organized in the form of a self-contained IDL widget-based application, with a 'user-friendly' graphic interface. We give here a general description of the code along with some applications to real data with space-invariant Point Spread Function (PSF). We present also some methods to handle anisoplanatic effects in wide-field Adaptive Optics (AO)observations.
description: 9 pages, to to be published on "Proceeedings of Adaptive Optical Systems Technology",Proc.of SPIE,Vol.4007,2000. In press
Boundary Rings and N=2 Coset Models
Creators: name: Lerche, W.
name: Walcher, J.
Publisher: name: arXiv
Year: 2000
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We investigate boundary states of N=2 coset models based on Grassmannians Gr(n,n+k), and find that the underlying intersection geometry is given by the fusion ring of U(n). This is isomorphic to the quantum cohomology ring of Gr(n,n+k+1), and thus can be encoded in a ``boundary'' superpotential whose critical points correspond to the boundary states. In this way the intersection properties can be represented in terms of a soliton graph that forms a generalized, Z_{n+k+1} symmetric McKay quiver. We investigate the spectrum of bound states and find that the rational boundary CFT produces only a small subset of the possible quiver representations.
description: 40p, 5 figs, refs added, typos and minor errors corrected
Storytelling Agents with Personality and Adaptivity
Creators: name: Hu, Zhichao
name: Walker, Marilyn A.
name: Neff, Michael
name: Tree, Jean E. Fox
Publisher: name: arXiv
Year: 2017
Subjects: subject: Human-Computer Interaction (cs.HC)
subject: Computation and Language (cs.CL)
subject: FOS: Computer and information sciences

description: We explore the expression of personality and adaptivity through the gestures of virtual agents in a storytelling task. We conduct two experiments using four different dialogic stories. We manipulate agent personality on the extraversion scale, whether the agents adapt to one another in their gestural performance and agent gender. Our results show that subjects are able to perceive the intended variation in extraversion between different virtual agents, independently of the story they are telling and the gender of the agent. A second study shows that subjects also prefer adaptive to nonadaptive virtual agents.
description: Related dataset: https://nlds.soe.ucsc.edu/sdg
3D Structures of Plant Phytochrome A as Pr and Pfr From Solid-State NMR: Implications for Molecular Function
Creators: name: Song, Chen
name: Mroginski, Maria Andrea
name: Lang, Christina
name: Kopycki, Jakub
name: Gärtner, Wolfgang
name: Matysik, Jörg
name: Hughes, Jon
Publisher: name: Technische Universität Berlin
Year: 2018
Subjects: subject: 540 Chemie und zugeordnete Wissenschaften
subject: 570 Biowissenschaften; Biologie
subject: chromophore–protein interaction
subject: photochromicity
subject: QM/MM
subject: protein refolding
subject: signal transduction

description: We present structural information for oat phyA3 in the far-red-light-absorbing (Pfr) signaling state, to our knowledge the first three-dimensional (3D) information for a plant phytochrome as Pfr. Solid-state magic-angle spinning (MAS) NMR was used to detect interatomic contacts in the complete photosensory module [residues 1–595, including the NTE (N-terminal extension), PAS (Per/Arnt/Sim), GAF (cGMP phosphodiesterase/adenylyl cyclase/FhlA) and PHY (phytochrome-specific) domains but with the C-terminal PAS repeat and transmitter-like module deleted] auto-assembled in vitro with 13C- and 15N-labeled phycocyanobilin (PCB) chromophore. Thereafter, quantum mechanics/molecular mechanics (QM/MM) enabled us to refine 3D structural models constrained by the NMR data. We provide definitive atomic assignments for all carbon and nitrogen atoms of the chromophore, showing the Pfr chromophore geometry to be periplanar ZZEssa with the D-ring in a β-facial disposition incompatible with many earlier notions regarding photoconversion yet supporting circular dichroism (CD) data. The Y268 side chain is shifted radically relative to published Pfr crystal structures in order to accommodate the β-facial ring D. Our findings support a photoconversion sequence beginning with Pr photoactivation via an anticlockwise D-ring Za→Ea photoflip followed by significant shifts at the coupling of ring A to the protein, a B-ring propionate partner swap from R317 to R287, changes in the C-ring propionate hydrogen-bonding network, breakage of the D272–R552 salt bridge accompanied by sheet-to-helix refolding of the tongue region stabilized by Y326–D272–S554 hydrogen bonding, and binding of the NTE to the hydrophobic side of ring A. We discuss phyA photoconversion, including the possible roles of mesoscopic phase transitions and protonation dynamics in the chromophore pocket. We also discuss possible associations between structural changes and translocation and signaling processes within the cell.
Extremal Hilbert series
Creators: name: Fröberg, Ralf
name: Lundqvist, Samuel
Publisher: name: arXiv
Year: 2017
Subjects: subject: Commutative Algebra (math.AC)
subject: Rings and Algebras (math.RA)
subject: FOS: Mathematics
subject: 13E10 (Primary) 13D02, 16D25, 17B70 (Secondary)

description: Given an ideal of forms in an algebra (polynomial ring, tensor algebra, exterior algebra, Lie algebra, bigraded polynomial ring), we consider the Hilbert series of the factor ring. We concentrate on the minimal Hilbert series, which is achieved when the forms are generic. In the polynomial ring we also consider the opposite case of maximal series. This is mainly a survey article, but we give a lot of problems and conjectures. The only novel results concern the maximal series in the polynomial ring.
description: 12 pages
Field-induced spin mixing in ultrathin superconducting Al and Be films in high parallel magnetic fields
Creators: name: Adams, P. W.
Publisher: name: arXiv
Year: 2003
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: We report spin-dependent electron density of states (DOS) studies of ultra-thin superconducting Al and Be films in high parallel magnetic fields. Superconductor-insulator-superconductor (SIS) tunneling spectra are presented in which both the film and the counterelectrode are in the paramagnetic limit. This SIS configuration is exquisitely sensitive to spin mixing and/or spin flip processes which are manifest as DOS singularities at eV = 2Delta +- eV_z. Both our Al and Be data show a well defined subgap peak whose magnitude grows dramatically as the parallel critical field is approached. Though this feature has previously been attributed to spin-orbit scattering, it is more consistent with fluctuations into a field induced mixed-spin state.
description: to appear in PRL
Function and form relationships : a basis for preliminary design
Creators: name: J  Rinderle
name: Carnegie Mellon University.Engineering Design Research Center.
Publisher: name: Carnegie Mellon University
Year: 1987
Subjects: subject: Mechanical Engineering
subject: FOS: Mechanical engineering

description: Abstract: "During preliminary design, designers must evaluate the relative merits of many alternative concepts. Experienced designers are able to reason about basic relationships between the physical structure of alternatives and performance of a device and can therefore eliminate many alternatives without the need for design detailing. Such form-function relations exist for individual components and devices due to basic engineering principles. They can be codified and used as a basis for a structured system able to assist less experienced designers. Because these relationships do not depend on design details, such a system facilitates top-down design and the early evaluation of design alternatives. Basic relations between form and function for individual components can also be aggregated to represent subassemblies, assemblies, devices and so forth. This facilitates modularity in design. The relations can be refined as the design becomes more detailed, providing resolution in evaluation commensurate with the level of design detail."
Suppression of statistical background in the event structure of away-side $Δϕ$ distribution
Creators: name: Chiu, Charles B.
name: Hwa, Rudolph C.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Nuclear Theory (nucl-th)
subject: Nuclear Experiment (nucl-ex)
subject: FOS: Physical sciences

description: An approach is proposed to analyze the azimuthal distribution of particles produced on the away side in heavy-ion collisions without background subtraction. Measures in terms of factorial moments are suggested that can suppress the statistical background, while giving clear distinction between one-jet and two-jet event structures on the away side. It is also possible to map the position and strength of the recoil jet to suitably chosen asymmetry moments.
description: 4 pages in RevTeX including 5 figures
Strong amenability and the infinite conjugacy class property
Creators: name: Frisch, Joshua
name: Tamuz, Omer
name: Ferdowsi, Pooya Vahidi
Publisher: name: arXiv
Year: 2018
Subjects: subject: Group Theory (math.GR)
subject: Dynamical Systems (math.DS)
subject: FOS: Mathematics

description: A group is said to be strongly amenable if each of its proximal topological actions has a fixed point. We show that a finitely generated group is strongly amenable if and only if it is virtually nilpotent. More generally, a countable discrete group is strongly amenable if and only if none of its quotients have the infinite conjugacy class property.
description: 20 pages, 3 figures. Some minor corrections to the proofs
Theory of Stellar Oscillations
Creators: name: Cunha, Margarida S.
Publisher: name: arXiv
Year: 2017
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: In recent years, astronomers have witnessed major progresses in the field of stellar physics. This was made possible thanks to the combination of a solid theoretical understanding of the phenomena of stellar pulsations and the availability of a tremendous amount of exquisite space-based asteroseismic data. In this context, this chapter reviews the basic theory of stellar pulsations, considering small, adiabatic perturbations to a static, spherically symmetric equilibrium. It starts with a brief discussion of the solar oscillation spectrum, followed by the setting of the theoretical problem, including the presentation of the equations of hydrodynamics, their perturbation, and a discussion of the functional form of the solutions. Emphasis is put on the physical properties of the different types of modes, in particular acoustic (p-) and gravity (g-) modes and their propagation cavities. The surface (f-) mode solutions are also discussed. While not attempting to be comprehensive, it is hoped that the summary presented in this chapter addresses the most important theoretical aspects that are required for a solid start in stellar pulsations research.
description: Lecture presented at the IVth Azores International Advanced School in Space Sciences on "Asteroseismology and Exoplanets: Listening to the Stars and Searching for New Worlds" (arXiv:1709.00645), which took place in Horta, Azores Islands, Portugal in July 2016
Consistent optical potential for incident and emitted low-energy $α$ particles. II. $α$-emission in fast-neutron induced reactions on Zr isotopes
Creators: name: Avrigeanu, V.
name: Avrigeanu, M.
Publisher: name: arXiv
Year: 2017
Subjects: subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: Background: Challenging questions of the $α$-particle optical-model potential (OMP) are still pointed out by recent high-precision measurements of $α$-induced reaction data below the Coulomb barrier. Moreover, the reliability of a previous OMP for $α$-particles on nuclei within the mass number range 45$\leq$$A$$\leq$209 has been recently proved for emitted $α$ particles as well, but only in the case of proton-induced reactions on Zn isotopes [Phys. Rev. C {\bf 91}, 064611 (2015), Paper I]. Purpose: Analysis of most recent $(α,γ)$ reaction data for Ge and Zr isotopes, which provides an additional validation of the above-mentioned potential, is related to a further account of $α$-particle emission in neutron-induced reactions on Zr isotopes, at the same time with a suitable description of all competitive processes. Methods: A consistent parameter set, established or validated by independent analysis of recent various data, particularly $γ$-ray strength functions, have been involved within model calculation of the $(α,γ)$ as well as $(n,α)$ reaction cross sections. The latter are part of the whole analysis of the neutron activation of Zr isotopes, in order to avoid any error compensation or latent ambiguity. Results: The aforesaid potential provides a consistent description of recent $α$-induced reaction data with no empirical rescaling factors of the $γ$ and/or nucleon widths. On the other hand, its use leads to underestimated predictions of the pre-equilibrium emission and statistical models for the $(n,α)$ reaction cross sections. Conclusions: An optical potential with a volume imaginary component seems to be needed to describe the low-energy $α$-particle evaporation, while only surface absorption occurs in $α$-induced reactions at similar energies.
description: 18 pages, 11 figures, accepted for publication in Phys. Rev. C
title: ADCO, Ordre cistercien : comptes (1499-1515) (11 H 1162), f. 00270
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: Chartes de la Bourgogne du Moyen Âge
subject: LaMOP
subject: Laboratoire de Médiévistique Occidentale de Paris
subject: comptes
subject: Corpus Burgundiae Medii Aevi

description: Ordre cistercien : comptes (1499-1515), Archives départementales de la Côte-d'Or, (11 H 1162). Numérisation en mode image.
description: Relation: http://www.cbma-project.eu/
description: Bibliographic citation: Ordre cistercien : comptes (1499-1515), Archives départementales de la Côte-d'Or, (11 H 1162), f. 00270, 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
Additional file 1 of Identification of a flavonoid C-glycosyltransferase from fern species Stenoloma chusanum and the application in synthesizing flavonoid C-glycosides in Escherichia coli
Creators: name: Ni, Rong
name: Liu, Xin-Yan
name: Zhang, Jiao-Zhen
name: Fu, Jie
name: Tan, Hui
name: Zhu, Ting-Ting
name: Zhang, Jing
name: Wang, Hai-Long
name: Lou, Hong-Xiang
name: Cheng, Ai-Xia
Publisher: name: figshare
Year: 2022
Subjects: subject: Microbiology
subject: FOS: Biological sciences

description: Additional file 1: Fig. S1. The possible biosynthetic pathways for C-glycosylflavones. F2H: flavanone 2-hydroxylase; FNS: flavone synthase; CGT: C-glycosyltransferase. Fig. S2. SDS-PAGE analysis of recombinant proteins. M: Weight marker, Lane 1: pET32a, Lane 2: ScGT1, Lane 3: ScGT2, Lane 4: ScGT3, Lane 5: ScGT4, Lane 6: ScCGT1-H26A, Lane 7: ScCGT1-L143T, Lane 8: ScCGT1-P164T, Lane 9: ScCGT1-L301G, Lane 10: ScCGT1-D141I/P142D, Lane 11: ScCGT1-4T (S108D/H109P/V110F/L111F). Fig. S3. Sugar donor selectivity of ScCGT1. A. HPLC chromatograms of the glycosylation reactions using UDP-galactose as sugar donor. B. Typical negative ion MS and MS2 spectra of product 1b. C. HPLC chromatograms of the glycosylation reactions using UDP-glucuronic acid as sugar donor. D. Structures of the sugar donors. E. Relative activity of glycosylated products (1a and 1b) using three sugar donors. Phloretin was used as the acceptor substrate (1, phloretin; Gal, UDP-galactose; GlcA, UDP-glucuronic acid; Glc, UDP-glucose; MS:mass spectrometry; MS2: tandem mass spectrometry). Fig. S4. Sequence alignment of ScCGT1 with CGTs from other plants. The UGTs’ signature PSPG motifs were enclosed in a red box. The abbreviations for species and accession numbers are listed in Additional file 2: Table S2. Fig. S5. Enzymatic characteristics of purified recombinant ScCGT1. Effect of various pH (A) and temperature (B) on the enzyme activities of ScCGT1 using phloretin as substrates, UDP-glucose as sugar donor. Fig. S6. Kinetic analysis of ScCGT1 and ScCGT1-P164T mutant. (1, phloretin; 2, 2-hydroxynaringenin; Glc, UDP-glucose). Fig. S7. The effect of varying the concentration of naringenin on the production of vitexin (2b) and isovitexin (2c). Fig. S8. Subcellular localization of ScCGT1. Sub-cellular localization of vector pGWB5 and the products of the transgenes ScCGT1-GFP in transiently transformed tobacco leaf discs. The GFP signal appears green and the chlorophyll signal is red.
Finding phonemes: improving machine lip-reading
Creators: name: Bear, Helen L.
name: Harvey, Richard W.
name: Lan, Yuxuan
Publisher: name: arXiv
Year: 2017
Subjects: subject: Computer Vision and Pattern Recognition (cs.CV)
subject: Computation and Language (cs.CL)
subject: Audio and Speech Processing (eess.AS)
subject: FOS: Computer and information sciences
subject: FOS: Electrical engineering, electronic engineering, information engineering

description: In machine lip-reading there is continued debate and research around the correct classes to be used for recognition. In this paper we use a structured approach for devising speaker-dependent viseme classes, which enables the creation of a set of phoneme-to-viseme maps where each has a different quantity of visemes ranging from two to 45. Viseme classes are based upon the mapping of articulated phonemes, which have been confused during phoneme recognition, into viseme groups. Using these maps, with the LiLIR dataset, we show the effect of changing the viseme map size in speaker-dependent machine lip-reading, measured by word recognition correctness and so demonstrate that word recognition with phoneme classifiers is not just possible, but often better than word recognition with viseme classifiers. Furthermore, there are intermediate units between visemes and phonemes which are better still.
$S$-almost perfect commutative rings
Creators: name: Bazzoni, Silvana
name: Positselski, Leonid
Publisher: name: arXiv
Year: 2018
Subjects: subject: Commutative Algebra (math.AC)
subject: Category Theory (math.CT)
subject: FOS: Mathematics

description: Given a multiplicative subset $S$ in a commutative ring $R$, we consider $S$-weakly cotorsion and $S$-strongly flat $R$-modules, and show that all $R$-modules have $S$-strongly flat covers if and only if all flat $R$-modules are $S$-strongly flat. These equivalent conditions hold if and only if the localization $R_S$ is a perfect ring and, for every element $s\in S$, the quotient ring $R/sR$ is a perfect ring, too. The multiplicative subset $S\subset R$ is allowed to contain zero-divisors.
description: 29 pages; v.2: final version
Random projections in gravitational wave searches of compact binaries
Creators: name: Kulkarni, Sumeet
name: Phukon, Khun Sang
name: Reza, Amit
name: Bose, Sukanta
name: Dasgupta, Anirban
name: Krishnaswamy, Dilip
name: Sengupta, Anand S.
Publisher: name: arXiv
Year: 2018
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: Random projection (RP) is a powerful dimension reduction technique widely used in the analysis of high dimensional data. We demonstrate how this technique can be used to improve the computational efficiency of gravitational wave searches from compact binaries of neutron stars or black holes. Improvements in low-frequency response and bandwidth due to detector hardware upgrades pose a data analysis challenge in the advanced LIGO era as they result in increased redundancy in template databases and longer templates due to the higher number of signal cycles in-band. The RP-based methods presented here address both these issues within the same broad framework. We first use RP for an efficient, singular value decomposition inspired template matrix factorization and develop a geometric intuition for why this approach works. We then use RP to calculate approximate time-domain match correlations in a lower dimensional vector space. For searches over parameters corresponding to non-spinning binaries with a neutron star and a black hole, a combination of the two methods can reduce the total on-line computational cost by an order of magnitude over a nominal baseline. This can, in turn, help free-up computational resources needed to go beyond current spin-aligned searches to more complex ones involving generically spinning waveforms.
description: Matches the published version in Physical Review D (Rapid Communication) Phys. Rev. D 99, 101503(R) (2019)
$^{22}$C: $S$-Wave Two-Neutron Halo
Creators: name: Horiuchi, W.
name: Suzuki, Y.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: A dripline nucleus $^{22}$C is studied in a Borromean three-body model of $^{20}$C+$n$+$n$. The valence neutrons, interacting via a realistic potential, are constrained to be orthogonal to the occupied orbits in $^{20}$C. We obtain ample results supporting that $^{22}$C is an ideal $S$-wave two-neutron halo nucleus: The ground state is bound by 390-570 keV, the root mean square neutron and proton radii are 4.0 and 2.4 fm, and the two neutrons are predominantly in $(s_{1/2})^2$ orbits. The binding mechanism of $^{22}$C is discussed. One- and two-body density distributions elucidate the halo character as well as the correlated motion of the neutrons. The reaction cross sections of $^{22}$C+$^{12}$C collisions are predicted.
description: 8 pages, 4 figures
Fourier-based state parameterization for optimal trajectory design of linearly constrained linear-quadratic systems
Creators: name: Yen, Vincent Chai-Tse
name: Nagurka, Mark L.
name: Carnegie Mellon University.Engineering Design Research Center.
Publisher: name: Carnegie Mellon University
Year: 1989
Subjects: subject: Mechanical Engineering
subject: FOS: Mechanical engineering

description: Abstract: "This technical report considers the design of optimal trajectories of linearly constrained linear quadratic (LQ) systems. It is shown that by applying a Fourier-based state parameterization approach a linearly constrained LQ problem can be converted into a quadratic programming problem. Simulation results show that the proposed approach is an accurate and computationally efficient design tool for determining the optimal solution of linearly constrained LQ problems."
X-ray observation of radio supernova SN1979C by ASCA
Creators: name: Ray, A.
name: Petre, R.
name: Schlegel, E.
Publisher: name: arXiv
Year: 2000
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We report on the X-ray observation of the radio selected supernova SN1979C carried out with ASCA in December 1997. The supernova of type II$_{L}$ was first observed in the optical and occurred in the weakly barred, almost face on spiral galaxy NGC 4321 (M100) which is at a distance of 17.1 Mpc, and contains at least three other supernovae discovered in this century. No point source was detected at the radio position of SN1979C in a 3' diameter half power response circle in a 27.3 ks SIS exposure. The background and galaxy subtracted SN signal had a 3$σ$ upper limit to the count rate of 1.2$\times 10^{-3}$ cps in the full ASCA SIS band (0.4-10.0 keV). These measurements give the first ever x-ray flux limit of a Type II$_{L}$ SN in the higher energy band ($\geq$ 2 keV) which is an important diagnostic of the {\it outgoing} shock wave ploughing through the circumstellar medium.
description: 4 pages, 1 figure; send comments to: akr@tifr.res.in
Foundations of linear control via a new geometric paradigm
Creators: name: Kurfess, Thomas R.
name: Nagurka, Mark L.
name: Carnegie Mellon University.Engineering Design Research Center.
Publisher: name: Carnegie Mellon University
Year: 1991
Subjects: subject: Mechanical Engineering
subject: FOS: Mechanical engineering

description: Abstract: "In this report, we reexamine the foundations of classical control theory with reference to eigenvalue geometry via a new set of graphical controls tools, gain plots. These plots depict eigenvalue trajectory as an explicit function of gain. Various classical controlconcepts are generalized in nine theorems and demonstrated in three simple, yet pedagogical, examples."
title: 01_1399
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/
Geometric scalings for the electrostatically driven helical plasma state
Creators: name: Akçay, Cihan
name: Finn, John M.
name: Nebel, Richard A.
name: Barnes, Daniel C.
Publisher: name: arXiv
Year: 2017
Subjects: subject: Plasma Physics (physics.plasm-ph)
subject: FOS: Physical sciences

description: A new plasma state has been investigated [C.~Akcay, J.~Finn, R.~Nebel and D.~Barnes, Phys.~Plasmas $\textbf{24}$, 052503 (2017)], with a uniform applied axial magnetic field in a periodic cylinder of length $L=2πR$, driven by helical electrodes. The drive is single helicity, depending on $mθ+kz=mθ-nζ$, where $ζ=z/R$ and $k=-n/R$. For strong $(m,n)=(1,1)$ drive the state was found to have a strong axial mean current density, with a mean-field safety factor $q_0(r)$ just above the pitch of the electrodes $m/n=1$ in the interior. This state has possible applications to DC electrical transformers and tailoring of the current profile in tokamaks. We study two geometric issues of interest for these applications: (i) scaling of properties with the plasma length or aspect ratio; and (ii) behavior for different helicities, specifically $(m,n)=(1,n)$ for $n>1$ and $(m,n)=(2,1)$.
title: Improvements of acoustic survey to support ecosystem-based management of marine resource for the Baltic Sea
Creators: name: Feldman, V.N.
name: Kasatkina, S.М.
Publisher: name: ASC 2007 - Theme session C
Year: 2024
Subjects: Baltic Sea (ICES Ecoregion)
The sea and human culture and societies
Ecosystem observation, processes and dynamics
Pressures, impacts, conservation, and management

description: No abstracts are to be cited without prior reference to the author.The authors discussed three basic steps towards improving the Baltic International Acoustic Survey (BIAS) to support ecosystem-based management of marine resources. The first step is the modification of the BIAS survey into the Baltic International Ecosystem Survey (BIES) applying advanced acoustic techniques for characterization and classification of the Pelagic Ecosystem over a broad range of spatial and temporal scales with emphasis on species identification by multi-frequency methods. BIES will provide acoustic quantitative assessments of not only target fish species, but also organisms being at the various trophic levels of the pelagic ecosystem, as well as facilitates the improved understanding of the relation between the environmental characteristics and spatial and temporal dynamics of the pelagic ecosystem organisms. The second step is the integration of advanced data processing methods into the methodology of the Baltic International Survey for quantifying and summarizing the survey uncertainty. In compliance with ICES activities, these errors must be incorporated into ecosystem analysis and accounted for in stock assessment models and management advice. Estimating the BIAS uncertainty applying simulation, classical geostatistics and Baysian Maximum Entropy method are demonstrated. The third step is the combining the acoustic survey data with the commercial statistics and analytical methods of the trawl fishery for the ecosystembased rational exploitation of marine resource. It is demonstrated the possibility to estimate the biomass in the fishing grounds, expected catches of different trawl-trawler systems, the allowable fishing effort in line with predetermined allowable removal fractions and etc. The investigations already fulfilled in the frames of BSRP in 2004-2007 are shown.