cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
A Biophysical Model of the Mitochondrial ATP-Mg/Pi Carrier
Creators: name: Tewari, Shivendra G.
name: Dash, Ranjan K.
name: Beard, Daniel A.
name: Bazil, Jason N.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Cell Behavior (q-bio.CB)
subject: Optimization and Control (math.OC)
subject: Biological Physics (physics.bio-ph)
subject: Molecular Networks (q-bio.MN)
subject: FOS: Biological sciences
subject: FOS: Mathematics
subject: FOS: Physical sciences

description: Mitochondrial adenine nucleotide (AdN) content is regulated through the Ca2+-activated, electroneutral ATP-Mg/Pi carrier (APC). The APC is a protein in the mitochondrial carrier super family that localizes to the inner mitochondrial membrane (IMM). It is known to modulate a number of processes that depend on mitochondrial AdN content, such as gluconeogenesis, protein synthesis, and citrulline synthesis. Despite this critical role, a kinetic model of the underlying mechanism has not been developed and validated. Here, a biophysical model of the APC is developed that is thermodynamically balanced and accurately reproduces a number of reported data sets from isolated rat liver and rat kidney mitochondria. The model is based on an ordered bi-bi mechanism for hetero-exchange of ATP and Pi and also includes homo-exchanges of ATP and Pi to explain both the initial rate and time course data on ATP and Pi transport via the APC. The model invokes seven kinetic parameters regarding the APC mechanism and three parameters related to matrix pH regulation by external Pi. These parameters are estimated based on nineteen independent data curves; the estimated parameters are validated using six additional data curves. The model takes into account the effects of pH, Mg2+ and Ca2+ on ATP and Pi transport via the APC and supports the conclusion that the pH gradient across the IMM serves as the primary driving force for AdN uptake or efflux. Moreover, computer simulations demonstrate that extra-matrix Ca2+ modulates the turnover rate of the APC and not the binding affinity of ATP, as previously suggested.
description: This paper has been withdrawn by the author due to some incorrect presentation in the results and discussion part
title: Theodor Althet Heinrich von Strattmann
title: An entry in the LCA Online Dictionary of Leibniz’s Correspondents and Acquaintances
titleType: Subtitle
Creators: name: (:Tba)
Publisher: name: LCA Project
Year: 2018

description: Theodor Althet Heinrich von Strattmann as a personal relation of Leibniz’s: The resource presents biographical information on a correspondent of Leibniz's
Understanding Disengagement From Competitive Multiplayer Games: An Exploratory Study of League of Legends
Creators: name: Seim, Yannick
name: Strobel, Lukas
name: Gerling, Kathrin
name: Alexandrovsky, Dmitry
Publisher: name: Association for Computing Machinery (ACM)
Year: 2025
Subjects: Disengagement
Team Dynamics
Competitive Play
eSports

description: Competitive play in the multiplayer online battle arena game (MOBA) League of Legends (LoL) is a popular and engaging form of leisure. While it is well understood what draws players into such games, less is known about the process of disengagement from play sessions in competitive multiplayer settings. However, disengagement is a necessary part of play and one that has a significant impact on player experience. Our work addresses this knowledge gap through an exploratory interview study that examines the disengagement experiences of regular LoL players (n=8) and coaches (n=2). Leveraging grounded theory, our preliminary results identified four key contributors to the experience of disengagement: (1) satisfaction and frustration related to player performance, (2) team dynamics and social interaction, (3) individual and social aspirations, and (4) the role of coaching in the structure of play sessions. These themes structure the complex dynamics of player experience at the end of play sessions. Building upon our initial findings, we propose a lens on disengagement in competitive online multiplayer games, adding nuance to the existing body of literature that has examined disengagement in single-player settings.
title: Aegidius Strauch
title: An entry in the LCA Online Dictionary of Leibniz’s Correspondents and Acquaintances
titleType: Subtitle
Creators: name: (:Tba)
Publisher: name: LCA Project
Year: 2018

description: Aegidius Strauch as a personal relation of Leibniz’s: The resource presents biographical information on a correspondent of Leibniz's
Incorporation of fermions into double field theory
Creators: name: Jeon, Imtak
name: Lee, Kanghoon
name: Park, Jeong-Hyuck
Publisher: name: arXiv
Year: 2011
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: Based on the stringy differential geometry we proposed earlier, we incorporate fermions such as gravitino and dilatino into double field theory in a manifestly covariant manner with regard to O(D,D) T-duality, diffeomorphism, one-form gauge symmetry for B-field and a pair of local Lorentz symmetries. We note that there are two kinds of fermions in double field theory: O(D,D) singlet and non-singlet which may be identified, respectively as the common and the non-common fermionic sectors in type IIA and IIB supergravities. For each kind, we construct corresponding covariant Dirac operators. Further, we derive a simple criterion for an O(D,D) rotation to flip the chirality of the O(D,D) non-singlet chiral fermions, which implies the exchange of type IIA and IIB supergravities.
description: (v1) 1+21 pages, no figure; (v2) Refs. added, to appear in JHEP; (v3) minor change, a comment in the last section removed and Eq.(3.22) corrected
On chemical bonding of Helium with hcp-Beryllium
Creators: name: Bakai, A. S.
name: Timoshevskii, A. N.
name: Yanchitsky, B. Z.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Chemical inertness is the key property of helium determining its solubility, distribution and accumulation kinetics in metals. Against all expectations, our ab initio calculations show a substantial chemical bonding between He and Be atoms in the hcp-Be matrix when He occupies a non-symmetric position in a basal plane.
description: Revised version of manuscript, 4 pages, 4 figures
Quantization and Fractional Quantization of Currents in Periodically Driven Stochastic Systems I: Average Currents
Creators: name: Chernyak, Vladimir Y.
name: Klein, John R.
name: Sinitsyn, Nikolai A.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Soft Condensed Matter (cond-mat.soft)
subject: Algebraic Topology (math.AT)
subject: Statistics Theory (math.ST)
subject: FOS: Physical sciences
subject: FOS: Mathematics

description: This article studies Markovian stochastic motion of a particle on a graph with finite number of nodes and periodically time-dependent transition rates that satisfy the detailed balance condition at any time. We show that under general conditions, the currents in the system on average become quantized or fractionally quantized for adiabatic driving at sufficiently low temperature. We develop the quantitative theory of this quantization and interpret it in terms of topological invariants. By implementing the celebrated Kirchhoff theorem we derive a general and explicit formula for the average generated current that plays a role of an efficient tool for treating the current quantization effects.
description: 22 pages, 7 figures
title: Coherent vorticity extraction in turbulent boundary layers using orthogonal wavelets
Creators: name: Khujadze, George
name: Nguyen van Yen, Romain
name: Schneider, Kai
name: Oberlack, Martin
name: Farge, Marie
Publisher: name: IOP Publishing
Year: 2024

description: Turbulent boundary layer data computed by direct numerical simulation are analyzed using orthogonal anisotropic wavelets. The flow fields, originally given on a Chebychev grid, are first interpolated on a locally refined dyadic grid. Then, they are decomposed using a wavelet basis, which accounts for the anisotropy of the flow by using different scales in the wall-normal direction and in the planes parallel to the wall. Thus the vorticity field is decomposed into coherent and incoherent contributions using thresholding of the wavelet coefficients. It is shown that less than 1% of the coefficients retain the coherent structures of the flow, while the majority of the coefficients corresponds to a structureless, i.e., noise-like background flow. Scale-and direction-dependent statistics in wavelet space quantify the flow properties at different wall distances.
Reference electronic structure calculations in one dimension
Creators: name: Wagner, Lucas O.
name: Stoudenmire, E. M.
name: Burke, Kieron
name: White, Steven R.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: Chemical Physics (physics.chem-ph)
subject: FOS: Physical sciences

description: Large strongly correlated systems provide a challenge to modern electronic structure methods, because standard density functionals usually fail and traditional quantum chemical approaches are too demanding. The density-matrix renormalization group method, an extremely powerful tool for solving such systems, has recently been extended to handle long-range interactions on real-space grids, but is most efficient in one dimension where it can provide essentially arbitrary accuracy. Such 1d systems therefore provide a theoretical laboratory for studying strong correlation and developing density functional approximations to handle strong correlation, {\em if} they mimic three-dimensional reality sufficiently closely. We demonstrate that this is the case, and provide reference data for exact and standard approximate methods, for future use in this area.
description: 12 pages, 9 figures
title: Burkhard Gotthelf Struve
title: An entry in the LCA Online Dictionary of Leibniz’s Correspondents and Acquaintances
titleType: Subtitle
Creators: name: (:Tba)
Publisher: name: LCA Project
Year: 2018

description: Burkhard Gotthelf Struve as a personal relation of Leibniz’s: The resource presents biographical information on a correspondent of Leibniz's
Guidelines for Assessing Women's Empowerment in Agriculture: Operational Manual for Using the Women's Empowerment in Agriculture Index (WEAI) in Field Research
Creators: name: Soumya Gupta
Publisher: name: Gates Open Research
Year: 2019

description: Guidelines for Assessing Women's Empowerment in Agriculture: Operational Manual for Using the Women's Empowerment in Agriculture Index (WEAI) in Field Research
Measurement of the polarisation of W bosons produced with large transverse momentum in pp collisions at sqrt(s) = 7 TeV with the ATLAS experiment
Creators: name: ATLAS Collaboration
Publisher: name: arXiv
Year: 2012
Subjects: subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: This paper describes an analysis of the angular distribution of W->enu and W->munu decays, using data from pp collisions at sqrt(s) = 7 TeV recorded with the ATLAS detector at the LHC in 2010, corresponding to an integrated luminosity of about 35 pb^-1. Using the decay lepton transverse momentum and the missing transverse energy, the W decay angular distribution projected onto the transverse plane is obtained and analysed in terms of helicity fractions f0, fL and fR over two ranges of W transverse momentum (ptw): 35 < ptw < 50 GeV and ptw > 50 GeV. Good agreement is found with theoretical predictions. For ptw > 50 GeV, the values of f0 and fL-fR, averaged over charge and lepton flavour, are measured to be : f0 = 0.127 +/- 0.030 +/- 0.108 and fL-fR = 0.252 +/- 0.017 +/- 0.030, where the first uncertainties are statistical, and the second include all systematic effects.
description: 19 pages plus author list (34 pages total), 9 figures, 11 tables, revised author list, matches European Journal of Physics C version
MOESM1 of Transcriptome sequencing of Saccharina japonica sporophytes during whole developmental periods reveals regulatory networks underlying alginate and mannitol biosynthesis
Creators: name: Shao, Zhanru
name: Zhang, Pengyan
name: Lu, Chang
name: Li, Shaoxuan
name: Chen, Zhihang
name: Wang, Xiuliang
name: Duan, Delin
Publisher: name: figshare
Year: 2019
Subjects: subject: Biochemistry
subject: Medicine
subject: Genetics
subject: FOS: Biological sciences
subject: Molecular Biology
subject: Environmental Sciences not elsewhere classified
subject: Ecology
subject: Biological Sciences not elsewhere classified
subject: Developmental Biology
subject: Computational Biology

description: Additional file 1: Figure S1. Diagrammatic sketch of 4 clipped samples from each individual kelp.
New bounds for Tsallis parameter in a noncommutative phase-space entropic gravity and nonextensive Friedmann equations
Creators: name: Abreu, Everton M. C.
name: Neto, Jorge Ananias
name: Mendes, Albert C. R.
name: Oliveira, Wilson
Publisher: name: arXiv
Year: 2012
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: In this paper, we have analyzed the nonextensive Tsallis statistical mechanics in the light of Verlinde's formalism. We have obtained, with the aid of a noncommutative phase-space entropic gravity, a new bound for Tsallis nonextensive (NE) parameter (TNP) that is clearly different from the ones present in the current literature. We derived the Friedmann equations in a NE scenario. We also obtained here a relation between the gravitational constant and the TNP.
description: 15 pages. Final version to appear in Physica A
title: The Federal Reserve, the Bank of England, and the rise of the dollar as an international currency, 1914-1939
Creators: name: Eichengreen, Barry J.
name: Flandreau, Marc
Publisher: name: Graduate Institute of International and Development Studies
publisherIdentifier: https://ror.org/007ygn379
publisherIdentifierScheme: ROR
Year: 2010

description: HEID Working Paper ; 16/2010
Food Redistribution as Optimization
Creators: name: Phillips, Caleb
name: Hoenigman, Rhonda
name: Higbee, Becky
Publisher: name: arXiv
Year: 2011
Subjects: subject: Other Computer Science (cs.OH)
subject: FOS: Computer and information sciences

description: In this paper we study the simultaneous problems of food waste and hunger in the context of the possible solution of food (waste) rescue and redistribution. To this end, we develop an empirical model that can be used in Monte Carlo simulations to study the dynamics of the underlying problem. Our model's parameters are derived from a unique data set provided by a large food bank and food rescue organization in north central Colorado. We find that food supply is a non-parametric heavy-tailed process that is well-modeled with an extreme value peaks-over-threshold model. Although the underlying process is stochastic, the basic approach of food rescue and redistribution appears to be feasible both at small and large scales. The ultimate efficacy of this model is intimately tied to the rate at which food expires and hence the ability to preserve and quickly transport and redistribute food. The cost of the redistribution is tied to the number and density of participating suppliers, and costs can be reduced (and supply increased) simply by recruiting additional donors to participate. Our results show that with sufficient funding and manpower, a significant amount of food can be rescued from the waste stream and used to feed the hungry.
description: University of Colorado, Computer Science Department, Technical Report
The cosmic-ray and gas content of the Cygnus region as measured in gamma rays by the Fermi Large Area Telescope
Creators: name: The Fermi LAT Collaboration
Publisher: name: arXiv
Year: 2011
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: The Cygnus region hosts a giant molecular-cloud complex which actively forms massive stars. Interactions of cosmic rays with interstellar gas and radiation fields make it shine at gamma-ray energies. Several gamma-ray pulsars and other energetic sources are seen in this direction. In this paper we analyse the gamma-ray emission measured by the Fermi Large Area Telescope in the energy range from 100 MeV to 100 GeV in order to probe the gas and cosmic-ray content over the scale of the whole Cygnus complex. The signal from bright pulsars is largely reduced by selecting photons in their off-pulse phase intervals. We compare the diffuse gamma-ray emission with interstellar gas maps derived from radio/mm-wave lines and visual extinction data, and a global model of the region, including other pulsars and gamma-ray sources, is sought. The integral HI emissivity and its spectral energy distribution are both consistent within the systematics with LAT measurements in the interstellar space near the solar system. The average X=N(H2)/W(CO) ratio is consistent with other LAT measurements in the Local Arm. We detect significant gamma-ray emission from dark neutral gas for a mass corresponding to ~40% of that traced by CO. Despite the conspicuous star formation activity and large masses of the interstellar clouds, the cosmic-ray population in the Cygnus complex averaged over a few hundred parsecs is similar to that of the local interstellar space. (abridged)
description: 16 pages, 13 figures. Accepted for publication on A&A. Contact authors: I. A. Grenier (isabelle.grenier@cea.fr) and L. Tibaldo (luigi.tibaldo@pd.infn.it)
MPEC 2025-F211 : 2025 FU12
Creators: name: Minor Planet Center Staff
Publisher: name: The Minor Planet Center
Year: 2025
Subjects: subject: Small Solar System bodies
valueUri: http://astrothesaurus.org/uat/1469
subject: 2025 FU12

description: The Minor Planet Electronic Circulars contain information on unusual minor planets, routine data on comets and natural satellites, and occasional editorial announcements.  They are published on behalf of Division F of the International Astronomical Union by the Minor Planet Center, Smithsonian Astrophysical Observatory, Cambridge, MA 02138, U.S.A.
A Network Perspective on Software Modularity
Creators: name: Zanetti, Marcelo Serrano
name: Schweitzer, Frank
Publisher: name: arXiv
Year: 2012
Subjects: subject: Software Engineering (cs.SE)
subject: Social and Information Networks (cs.SI)
subject: Adaptation and Self-Organizing Systems (nlin.AO)
subject: Physics and Society (physics.soc-ph)
subject: FOS: Computer and information sciences
subject: FOS: Physical sciences
subject: D.2.2; D.2.8

description: Modularity is a desirable characteristic for software systems. In this article we propose to use a quantitative method from complex network sciences to estimate the coherence between the modularity of the dependency network of large open source Java projects and their decomposition in terms of Java packages. The results presented in this article indicate that our methodology offers a promising and reasonable quantitative approach with potential impact on software engineering processes.
title: C.R. Hasperg
title: An entry in the LCA Online Dictionary of Leibniz’s Correspondents and Acquaintances
titleType: Subtitle
Creators: name: (:Tba)
Publisher: name: LCA Project
Year: 2018

description: C.R. Hasperg as a personal relation of Leibniz’s: The resource presents biographical information on a correspondent of Leibniz's
Origin of cosmic magnetic fields: Superadiabatically amplified modes in open Friedmann universes
Creators: name: Barrow, J. D.
name: Tsagas, C. G.
name: Yamamoto, K.
Publisher: name: arXiv
Year: 2012
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: Cosmological magnetic fields in open Friedmann universes can experience superadiabatic amplification within the realm of conventional electromagnetism. This is possible mathematically, despite the conformal invariance of Maxwell's equations, because Friedmann spacetimes with non-Euclidean spatial geometry are not globally conformal to Minkowski space. Physically, this means that even universes that are marginally open today can sustain large-scale magnetic fields that are substantially stronger than previously anticipated. In the present article, we investigate this purely geometric amplification mechanism in greater detail, focusing on the early evolution of the electromagnetic modes in inflationary Friedmann models with hyperbolic spatial geometry. This also allows us to refine the earlier numerical estimates and provide the current spectrum of the residual, superadiabatically amplified magnetic field.
description: Typos corrected, references added. PRD in press
title: E.F. Hattorff
title: An entry in the LCA Online Dictionary of Leibniz’s Correspondents and Acquaintances
titleType: Subtitle
Creators: name: (:Tba)
Publisher: name: LCA Project
Year: 2018

description: E.F. Hattorff as a personal relation of Leibniz’s: The resource presents biographical information on a correspondent of Leibniz's
title: Johann von Hattorff
title: An entry in the LCA Online Dictionary of Leibniz’s Correspondents and Acquaintances
titleType: Subtitle
Creators: name: (:Tba)
Publisher: name: LCA Project
Year: 2018

description: Johann von Hattorff as a personal relation of Leibniz’s: The resource presents biographical information on a correspondent of Leibniz's
Broadcasting Quantum Fisher Information
Creators: name: Lu, Xiao-Ming
name: Sun, Zhe
name: Wang, Xiaoguang
name: Luo, Shunlong
name: Oh, C. H.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Quantum Physics (quant-ph)
subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: It is well known that classical information can be cloned, but non-orthogonal quantum states cannot be cloned, and non-commuting quantum states cannot be broadcast. We conceive a scenario in which the object we want to broadcast is the statistical distinguishability, as quantified by quantum Fisher information, about a signal parameter encoded in quantum states. We show that quantum Fisher information cannot be cloned, whilst it might be broadcast even when the input states are non-commuting. This situation interpolates between cloning of classical information and no-broadcasting of quantum information, and indicates a hybrid way of information broadcasting which is of particular significance from both practical and theoretical perspectives.
description: 5 pages. Improved version. Any comments is welcome
title: Zum Andenken an Prof. Dr. Georg Bühler, k. k. Hofrat aus Wien
title: Geboren am 19. Juli 1837, Gestorben am 8. April 1898
titleType: Subtitle
Creators: name: Kaegi, Adolf
Publisher: name: Neue Zürcher Zeitung
Year: 1898
Subjects: subject: 920 Biografien, Genealogie, Insignien
subject: Nachruf
subject: Bühler, Georg

description: Separatabdruck aus der "Neuen Zürcher Zeitung".
Pairing Glue Activation in Cuprates within the Quantum Critical Regime
Creators: name: Ashkenazi, Josef
name: Johnson, Neil F.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: A grand challenge in many-body quantum physics is to explain the apparent connection between quantum criticality and high-temperature superconductivity in the cuprates and similar systems, such as the iron pnictides and chalcogenides. Here we argue that the quantum-critical regime plays an essential role in activating a strong-pairing mechanism: although pairing bosons create a symmetry-breaking instability which suppresses pairing, the combination of these broken-symmetry states within the critical regime can restore this symmetry for the paired quasiparticles. This condition is shown to be met within a large-U ansatz. A hidden quantum phase transition then arises between a Fermi-liquid and a non-Fermi-liquid broken-symmetry striped state, and a critical regime in which the broken-symmetry states are combined.
description: 4 pages, 3 figures; modified version, including clarifications, accepted for publication in EPL
Frictionless Application: data management for humans (csv,conf 2023)
Creators: name: Karev Evgeny
Publisher: name: Zenodo
Year: 2023
Subjects: frictionless
csv
open knowledge

description: This talk will present a new data management IDE for CSV and other formats that provides functionality to describe, extract, validate, and transform tabular data. It's a logical continuation of the Frictionless Data project's standards and software with a focus on the non-technical audience: data publishers, librarians, and, in general, people who prefer visual interfaces over command-line interfaces and programming languages.
title: Co Catalyzed Synthesis of Primary Amines via Reductive Amination employing Hydrogen under very mild Conditions
Creators: name: Elfinger, Matthias
name: Schönauer, Timon
name: Thomä, Sabrina
name: Stäglich, Robert
name: Zobel, Mirijam
name: Senker, Jürgen
name: Drechsler, Markus
name: Kempe, Rhett
Publisher: name: University of Bayreuth
Year: 2021
Subjects: subject: catalysis
subject: cobalt
subject: ketones
subject: primary amines
subject: reductive amination
subject: 540

description: Nanostructured and reusable 3d‐metal catalysts that operate with high activity and selectivity in important chemical reactions are highly desirable. We report here on a cobalt catalyst for the synthesis of primary amines via reductive amination employing hydrogen as the reducing agent and easy to handle ammonia, dissolved in water, as the nitrogen source. Our catalyst operates under very mild conditions (1.5 mol% catalyst loading, 50 °C and 10 bar H 2 pressure) and outperforms commercially available noble metal catalysts (Pd, Pt, Ru, Rh, Ir). We observe a broad scope and a very good functional group tolerance. The key for the high activity seems to be the used support: an N‐doped amorphous carbon material with small and turbostratically disordered graphitic domains. It is microporous with a bimodal size distribution and with basic NH functionalities in the pores.
title: Hermann Bodo Heckenberg
title: An entry in the LCA Online Dictionary of Leibniz’s Correspondents and Acquaintances
titleType: Subtitle
Creators: name: (:Tba)
Publisher: name: LCA Project
Year: 2018

description: Hermann Bodo Heckenberg as a personal relation of Leibniz’s: The resource presents biographical information on a correspondent of Leibniz's
Quantization and Fractional Quantization of Currents in Periodically Driven Stochastic Systems II: Full Counting Statistics
Creators: name: Chernyak, Vladimir Y.
name: Klein, John R.
name: Sinitsyn, Nikolai A.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Algebraic Topology (math.AT)
subject: Statistics Theory (math.ST)
subject: FOS: Physical sciences
subject: FOS: Mathematics

description: We study Markovian stochastic motion on a graph with finite number of nodes and adiabatically periodically driven transition rates. We show that, under general conditions, the quantized currents that appear at low temperatures are a manifestation of topological invariants in the counting statistics of currents. This observation provides an approach for classification of topological properties of the counting statistics, as well as for extensions of the phenomenon of the robust quantization of currents at low temperatures to the properties of the counting statistics which persist to finite temperatures.
description: 18 pages, 5 figures
Ultrathin oxide controlled photocurrent generation through a metal–insulator– semiconductor heterojunction
Creators: name: LIU, NING
name: Yan, Xiaohong
name: Gao, Long
name: BELOSHAPKIN, SERGEY
name: Silien, Christophe
name: Wei, Hong
Publisher: name: University of Limerick
Year: 2023
Subjects: classificationCode: 5103
subject: Classical physics

description: Recent advances in nanoscale lasers, amplifiers, and nonlinear optical converters have demonstrated the unprecedented potential of metal–insulator–semiconductor (MIS) structures as a versatile platform to realize integrated photonics at the nanoscale. While the electric field enhancement and confinement have been discussed intensively in MIS based plasmonic structures, little is known about the carrier redistribution across the heterojunction and photocurrent transport through the oxide. Herein, we investigate the photo-generated charge transport through a single CdSe microbelt-Al2O3-Ag heterojunction with oxide thickness varying from 3 nm to 5 nm. Combining photocurrent measurements with finite element simulations on electron (hole) redistribution across the heterojunction, we are able to explain the loss compensation observed in hybrid plasmonic waveguides at substantially reduced pump intensity based on MIS geometry compared to its photonic counterpart. We also demonstrate that the MIS configuration offers a low-dark-current photodetection scheme, which can be further exploited for photodetection applications.
A Look at the Generalized Heron Problem through the Lens of Majorization-Minimization
Creators: name: Chi, Eric C.
name: Lange, Kenneth
Publisher: name: arXiv
Year: 2012
Subjects: subject: Optimization and Control (math.OC)
subject: Numerical Analysis (math.NA)
subject: FOS: Mathematics

description: In a recent issue of this journal, Mordukhovich et al.\ pose and solve an interesting non-differentiable generalization of the Heron problem in the framework of modern convex analysis. In the generalized Heron problem one is given $k+1$ closed convex sets in $\Real^d$ equipped with its Euclidean norm and asked to find the point in the last set such that the sum of the distances to the first $k$ sets is minimal. In later work the authors generalize the Heron problem even further, relax its convexity assumptions, study its theoretical properties, and pursue subgradient algorithms for solving the convex case. Here, we revisit the original problem solely from the numerical perspective. By exploiting the majorization-minimization (MM) principle of computational statistics and rudimentary techniques from differential calculus, we are able to construct a very fast algorithm for solving the Euclidean version of the generalized Heron problem.
description: 21 pages, 3 figures
Bui Kataa, 2008 Field Notes
Creators: name: Stahl, Ann
Year: 2008
Subjects: subject: Brong-Ahafo (State / Territory)
valueUri: https://core.tdar.org/browse/geographic-keyword/81064/brong-ahafo-state-territory
subject: Bono Region
valueUri: https://core.tdar.org/browse/geographic-keyword/85399/bono-region
subject: Banda area
valueUri: https://core.tdar.org/browse/geographic-keyword/85402/banda-area
subject: Republic of Ghana (Country)
valueUri: https://core.tdar.org/browse/geographic-keyword/76091/republic-of-ghana-country
subject: Makala phase
valueUri: https://core.tdar.org/browse/temporal-keyword/8273/makala-phase
subject: West African
valueUri: https://core.tdar.org/browse/culture-keyword/9229/west-african
subject: Historic
valueUri: https://core.tdar.org/browse/culture-keyword/25/historic
subject: Village
valueUri: https://core.tdar.org/browse/site-type/396/village
subject: Shell
valueUri: https://core.tdar.org/browse/material-type/14/shell
subject: Ceramic
valueUri: https://core.tdar.org/browse/material-type/1/ceramic
subject: Fauna
valueUri: https://core.tdar.org/browse/material-type/4/fauna
subject: Glass
valueUri: https://core.tdar.org/browse/material-type/6/glass
subject: Ground Stone
valueUri: https://core.tdar.org/browse/material-type/7/ground-stone
subject: Macrobotanical
valueUri: https://core.tdar.org/browse/material-type/10/macrobotanical
subject: Metal
valueUri: https://core.tdar.org/browse/material-type/11/metal
subject: Ethnohistoric Research
valueUri: https://core.tdar.org/browse/investigation-type/17/ethnohistoric-research
subject: Data Recovery / Excavation
valueUri: https://core.tdar.org/browse/investigation-type/5/data-recovery-excavation
subject: Site Evaluation / Testing
valueUri: https://core.tdar.org/browse/investigation-type/10/site-evaluation-testing

description: Field notes from the 2008 Banda Research Project test excavations at Bui Kataa, Banda area, Bono Region (formerly Brong-Ahafo Region), Ghana. Typed transcriptions of field notes are accompanied by traced plan and profile maps. Handwritten notes on scans of Ann Stahl's printed field notes and original field maps have been transcribed as comments to facilitate their use.
Solar cycle variation of photospheric and chromospheric magnetic and ultraviolet emission features observed by the Solar Dynamics Observatory
Creators: name: Noble, Callan Nicholas
Publisher: name: The University of St Andrews
Year: 2022
Subjects: Solar
Photosphere
Chromosphere
Magnetohydrodynamics
Emission
Feature frequency distribution
Power law
Double power law
Feature detection

description: The solar magnetic field exhibits cyclic behaviour over a period of 22 years, continually reprocessing the poloidal, dipolar magnetic field into toroidal, quadrupolar magnetic field and vice versa. The cyclic behaviour of the solar magnetic field has been revealed through long-term measurements of the photospheric magnetic field strength. In addition, the long-term behaviour of phenomena associated with the magnetic field, such as sunspots and coronal loops, can be observed through ultraviolet emission measurements. We use statistical tools to analyse magnetic field strength and ultraviolet emission intensity data from the Solar Dynamics Observatory to determine the variation of photospheric and chromospheric magnetic and ultraviolet emission features over a full solar cycle. The nature of the observed distributions of these features at different times during the solar cycle may contribute towards a better understanding of the magnetic field generation mechanisms. This contribution may be in the form of theoretical interpretation of the physical processes which lead to such distributions or by providing physical constraints to numerical models of the solar dynamo, turbulent convection, and flux emergence. We consider a number of statistical models including a single power law, a truncated Weibull-lognormal, and a smooth double power law, amongst others. We investigate the plausibility and goodness-of-fit of such models for four full cycle datasets; magnetic features observed by the Helioseismic and Magnetic Imager, and emission features observed by the 304\AA, 1600\AA, and 1700\AA\ channels of the Atmospheric Imaging Assembly. We determine that a double power law performs well over the full solar cycle in all four cases and discuss the potential implications of a double power law distribution for solar magnetic field generation. We propose that the double power law is a suitable fit as the flexibility of two separate power law regimes accurately reflects the physical conditions which produce the observed magnetic field and ultraviolet emission features.
Permutation Complexity and Coupling Measures in Hidden Markov Models
Creators: name: Haruna, Taichi
name: Nakajima, Kohei
Publisher: name: arXiv
Year: 2012
Subjects: subject: Chaotic Dynamics (nlin.CD)
subject: Information Theory (cs.IT)
subject: Data Analysis, Statistics and Probability (physics.data-an)
subject: FOS: Physical sciences
subject: FOS: Computer and information sciences

description: In [Haruna, T. and Nakajima, K., 2011. Physica D 240, 1370-1377], the authors introduced the duality between values (words) and orderings (permutations) as a basis to discuss the relationship between information theoretic measures for finite-alphabet stationary stochastic processes and their permutation analogues. It has been used to give a simple proof of the equality between the entropy rate and the permutation entropy rate for any finite-alphabet stationary stochastic process and show some results on the excess entropy and the transfer entropy for finite-alphabet stationary ergodic Markov processes. In this paper, we extend our previous results to hidden Markov models and show the equalities between various information theoretic complexity and coupling measures and their permutation analogues. In particular, we show the following two results within the realm of hidden Markov models with ergodic internal processes: the two permutation analogues of the transfer entropy, the symbolic transfer entropy and the transfer entropy on rank vectors, are both equivalent to the transfer entropy if they are considered as the rates, and the directed information theory can be captured by the permutation entropy approach.
description: 26 pages
title: Johann Christoph Sturm
title: An entry in the LCA Online Dictionary of Leibniz’s Correspondents and Acquaintances
titleType: Subtitle
Creators: name: (:Tba)
Publisher: name: LCA Project
Year: 2018

description: Johann Christoph Sturm as a personal relation of Leibniz’s: The resource presents biographical information on a correspondent of Leibniz's
Regional Testing, 2000-2001 Field Notes
Creators: name: Stahl, Ann
Year: 2002
Subjects: subject: Brong-Ahafo (State / Territory)
valueUri: https://core.tdar.org/browse/geographic-keyword/81064/brong-ahafo-state-territory
subject: Banda area
valueUri: https://core.tdar.org/browse/geographic-keyword/85402/banda-area
subject: Republic of Ghana (Country)
valueUri: https://core.tdar.org/browse/geographic-keyword/76091/republic-of-ghana-country
subject: Makala phase
valueUri: https://core.tdar.org/browse/temporal-keyword/8273/makala-phase
subject: Kuulo phase
valueUri: https://core.tdar.org/browse/temporal-keyword/8274/kuulo-phase
subject: Ngre phase
valueUri: https://core.tdar.org/browse/temporal-keyword/8275/ngre-phase
subject: Early Atlantic phase
valueUri: https://core.tdar.org/browse/temporal-keyword/8276/early-atlantic-phase
subject: Volta phase
valueUri: https://core.tdar.org/browse/temporal-keyword/8277/volta-phase
subject: West African
valueUri: https://core.tdar.org/browse/culture-keyword/9229/west-african
subject: Historic
valueUri: https://core.tdar.org/browse/culture-keyword/25/historic
subject: Iron Age
valueUri: https://core.tdar.org/browse/culture-keyword/153/iron-age
subject: Resource Extraction / Production / Transportation Structure or Features
valueUri: https://core.tdar.org/browse/site-type/272/resource-extraction-production-transportation-structure-or-features
subject: Domestic Structure or Architectural Complex
valueUri: https://core.tdar.org/browse/site-type/251/domestic-structure-or-architectural-complex
subject: Village
valueUri: https://core.tdar.org/browse/site-type/396/village
subject: Shell
valueUri: https://core.tdar.org/browse/material-type/14/shell
subject: Ceramic
valueUri: https://core.tdar.org/browse/material-type/1/ceramic
subject: Dating Sample
valueUri: https://core.tdar.org/browse/material-type/3/dating-sample
subject: Fauna
valueUri: https://core.tdar.org/browse/material-type/4/fauna
subject: Glass
valueUri: https://core.tdar.org/browse/material-type/6/glass
subject: Ground Stone
valueUri: https://core.tdar.org/browse/material-type/7/ground-stone
subject: Macrobotanical
valueUri: https://core.tdar.org/browse/material-type/10/macrobotanical
subject: Metal
valueUri: https://core.tdar.org/browse/material-type/11/metal
subject: Data Recovery / Excavation
valueUri: https://core.tdar.org/browse/investigation-type/5/data-recovery-excavation
subject: Site Evaluation / Testing
valueUri: https://core.tdar.org/browse/investigation-type/10/site-evaluation-testing

description: Field notes from the 2000-2001 Banda Research Project Regional Testing of archaeological sites, Banda area, Brong-Ahafo Region, Ghana. The volume includes notes on field investigations at 22 sites directed by Leith Smith and observations on excavated ceramic assemblages by Ann Stahl. Typed transcriptions of field notes are accompanied by tracings of original plan and profile maps. Handwritten notes on this digitized version of Ann Stahl's copy of the Regional Testing notes are transcribed as comments to facilitate use.
Revisiting the Twist-3 Distribution Amplitudes of $K$ Meson within the QCD Background Field Approach
Creators: name: Zhong, Tao
name: Wu, Xing-Gang
name: Han, Hua-Yong
name: Liao, Qi-Li
name: Fu, Hai-Bing
name: Fang, Zhen-Yun
Publisher: name: arXiv
Year: 2011
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: In the present paper, we investigate the kaon twist-3 distribution amplitudes (DAs) $ϕ_{p,σ}^K$ within the QCD background field approach. The $SU_f(3)$-breaking effects are studied in detail under a systematical way, especially the sum rules for the moments of $ϕ_{p,σ}^K$ are obtained by keeping all the mass terms in the $s$-quark propagator consistently. After adding all the uncertainties in quadrature, the first two Gegenbauler moments of $ϕ_{p,σ}^K$ are $a^1_{K,p}(1 {\rm GeV}) = -0.376^{+0.103}_{-0.148}$, $a^2_{K,p}(1 {\rm GeV}) = 0.701^{+0.481}_{-0.491}$, $a^1_{K,σ}(1 {\rm GeV}) = -0.160^{+0.051}_{-0.074}$ and $a^2_{K,σ}(1 {\rm GeV}) = 0.369^{+0.163}_{-0.149}$, respectively. Their normalization parameters $μ_K^p |_{1\rm GeV} = 1.188^{+0.039}_{-0.043}$ GeV and $μ_K^σ|_{1\rm GeV} = 1.021^{+0.036}_{-0.055}$ GeV. A detailed discussion on the properties of $ϕ^K_{p,σ}$ moments shows that the higher-order $s$-quark mass terms can indeed provide sizable contributions. Furthermore, based on the newly obtained moments, a model for the kaon twist-3 wavefunction $Ψ_{p,σ}^K(x,\mathbf{k}_\perp)$ with a better end-point behavior is constructed, which shall be useful for perturbative QCD calculations. As a byproduct, we make a discussion on the properties of the pion twist-3 DAs.
description: 11 pages, 3 figures. To match the printed version. To be published in Communications in Theoretical Physics
Ngre Kataa, 2008 Field Notes
Creators: name: Stahl, Ann
Year: 2008
Subjects: subject: Brong-Ahafo (State / Territory)
valueUri: https://core.tdar.org/browse/geographic-keyword/81064/brong-ahafo-state-territory
subject: Bono Region
valueUri: https://core.tdar.org/browse/geographic-keyword/85399/bono-region
subject: Banda area
valueUri: https://core.tdar.org/browse/geographic-keyword/85402/banda-area
subject: Republic of Ghana (Country)
valueUri: https://core.tdar.org/browse/geographic-keyword/76091/republic-of-ghana-country
subject: Ngre phase
valueUri: https://core.tdar.org/browse/temporal-keyword/8275/ngre-phase
subject: Early Atlantic phase
valueUri: https://core.tdar.org/browse/temporal-keyword/8276/early-atlantic-phase
subject: West African
valueUri: https://core.tdar.org/browse/culture-keyword/9229/west-african
subject: Historic
valueUri: https://core.tdar.org/browse/culture-keyword/25/historic
subject: Iron Age
valueUri: https://core.tdar.org/browse/culture-keyword/153/iron-age
subject: Ngre Kataa
valueUri: https://core.tdar.org/browse/site-name/118509/ngre-kataa
subject: Resource Extraction / Production / Transportation Structure or Features
valueUri: https://core.tdar.org/browse/site-type/272/resource-extraction-production-transportation-structure-or-features
subject: Domestic Structure or Architectural Complex
valueUri: https://core.tdar.org/browse/site-type/251/domestic-structure-or-architectural-complex
subject: Village
valueUri: https://core.tdar.org/browse/site-type/396/village
subject: Shell
valueUri: https://core.tdar.org/browse/material-type/14/shell
subject: Ceramic
valueUri: https://core.tdar.org/browse/material-type/1/ceramic
subject: Dating Sample
valueUri: https://core.tdar.org/browse/material-type/3/dating-sample
subject: Fauna
valueUri: https://core.tdar.org/browse/material-type/4/fauna
subject: Glass
valueUri: https://core.tdar.org/browse/material-type/6/glass
subject: Ground Stone
valueUri: https://core.tdar.org/browse/material-type/7/ground-stone
subject: Human Remains
valueUri: https://core.tdar.org/browse/material-type/9/human-remains
subject: Macrobotanical
valueUri: https://core.tdar.org/browse/material-type/10/macrobotanical
subject: Metal
valueUri: https://core.tdar.org/browse/material-type/11/metal
subject: Data Recovery / Excavation
valueUri: https://core.tdar.org/browse/investigation-type/5/data-recovery-excavation
subject: Site Evaluation / Testing
valueUri: https://core.tdar.org/browse/investigation-type/10/site-evaluation-testing

description: Field notes from the 2008 Banda Research Project field season at Ngre Kataa, Banda area, Bono Region (formerly Brong-Ahafo Region), Ghana, consisting of test excavations focused on a series of mounds (mounds 3, 6, 7, 8 and 14).Typed transcriptions of field notes are accompanied by traced plan and profile maps. Handwritten notes on scans of Ann Stahl's printed field notes and original field maps have been transcribed as comments to facilitate their use.
Nucleosynthesis of r-Process Elements by Jittering Jets in Core-Collapse Supernovae
Creators: name: Papish, Oded
name: Soker, Noam
Publisher: name: arXiv
Year: 2011
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: We calculate the nucleosynthesis inside the hot bubble formed in the jittering-jets model for core collapse supernovae (CCSNe) explosions, and find the formation of several times 10^-4 M_\odot of r-process elements. In the jittering-jets model fast jets launched from a stochastic accretion disk around the newly formed neutron star are shocked at several thousands km, and form hot high-pressure bubbles. These bubbles merge to form a large bubble that explode the star. In the current study we assume a spherically symmetric homogenous bubble, and follow its evolution for about one second during which nuclear reactions take place. The jets last for about one second, their velocity is v_j=0.5c, and their total energy is 10^51 erg. We use jets' neutron enrichment independent on time, and follow the nuclear reactions to the formation of the seed nuclei up to $Z \leq 50$, on which more neutrons will be absorbed to form the r-process elements. Based on the mass of the seed nuclei we find the r-process element mass in our idealized model to be several times 10^-4 M_\odot, which is slightly larger than the value deduced from observations. More realistic calculations that relax the assumptions of a homogenous bubble and constant jets composition might lead to agreement with observations.
description: Accepted for publication in MNRAS