cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Nucleon quark distributions in a covariant quark-diquark model
Creators: name: Cloet, I. C.
name: Bentz, W.
name: Thomas, A. W.
Publisher: name: arXiv
Year: 2005
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: Spin-dependent and spin-independent quark light-cone momentum distributions and structure functions are calculated for the nucleon. We utilize a modified Nambu-Jona-Lasinio model in which confinement is simulated by eliminating unphysical thresholds for nucleon decay into quarks. The nucleon bound state is obtained by solving the Faddeev equation in the quark-diquark approximation, where both scalar and axial-vector diquark channels are included. We find excellent agreement between our model results and empirical data.
description: 6 pages, 7 figures
Destabilizing amalgamated Heegaard splittings
Creators: name: Schultens, Jennifer
name: Weidmann, Richard
Publisher: name: arXiv
Year: 2005
Subjects: subject: Geometric Topology (math.GT)
subject: FOS: Mathematics
subject: 57M27

description: We construct a sequence of pairs of 3-manifolds each with torus boundary and with the following two properties: 1) For the result of a carefully chosen glueing of the nth pair of 3-manifolds along their boundary tori, the ratio of the genus of the resulting 3-manifold to the sum of the genera of the pair of 3-manifolds is less than 1/2. 2) The result of amalgamating certain unstabilized Heegaard splittings of the pair of 3-manifolds to form a Heegaard splitting of the resulting 3-manifold produces a stabilized Heegaard splitting that can be destabilized successively n times.
description: This is the version published by Geometry & Topology Monographs on 3 December 2007
Machine learning phases and criticalities without using real data for training
Creators: name: Tan, D. -R.
name: Jiang, F. -J.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: High Energy Physics - Lattice (hep-lat)
subject: Computational Physics (physics.comp-ph)
subject: FOS: Physical sciences

description: We study the phase transitions of three-dimensional (3D) classical O(3) model and the two-dimensional (2D) classical XY model, as well as both the quantum phase transitions of 2D and 3D dimerized spin-1/2 antiferromagnets, using the techniques of supervised neural network (NN). Moreover, unlike the conventional approaches commonly used in the literature, the training sets employed in our investigation are neither the theoretical nor the real configurations of the considered systems. Remarkably, with such an unconventional set up of the training stage in conjunction with semi-experimental finite-size scaling formulas, the associated critical points determined by the NN method agree well with the established results in the literature. The outcomes obtained here imply that certain unconventional training strategies, like the one used in this study, are not only cost-effective in computation, but are also applicable for a wild range of physical systems.
description: 14 pages and 33 figures; more references are added; the results of 2D classical XY model are included in this revised version
Search for the Rare Decays B0 -> Ds(*)+ a0(2)-
Creators: name: The BABAR Collaboration
name: al, B. Aubert et
Publisher: name: arXiv
Year: 2005
Subjects: subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: We have searched for the decays $B^0 \rightarrow D_s^{+}a_0^-$, $B^0 \rightarrow D_s^{*+}a_0^-$, $B^0 \rightarrow D_s^{+}a_2^-$ and $B^0 \rightarrow D_s^{*+}a_2^-$ in a sample of about 230 million $Υ(4S) \rightarrow B{\bar B}$ decays collected with the {\sl BaBar} detector at the PEP-II asymmetric-energy $B$-factory at SLAC. We find no evidence for these decays and set upper limits at 90\% C.L. on the branching fractions: ${\cal B}(B^0 \rightarrow D_s^+ a_0^-) < 1.9\times 10^{-5}$, ${\cal B}(B^0 \rightarrow D_s^{*+} a_0^-) < 3.6\times 10^{-5}$, ${\cal B}(B^0 \rightarrow D_s^+ a_2^-) < 1.9 \times 10^{-4}$, and ${\cal B}(B^0 \rightarrow D_s^{*+} a_2^-) < 2.0\times 10^{-4} $.
description: 8 pages, 8 postscript figues, submitted to PRD-RC
title: Archéogéographie et diagnostic archéologique : l’expérience de l’A83 dans le Sud-Vendée, « un retour vers le futur »
Creators: name: Vialet, Pascal
name: Watteaux, Magali
Publisher: name: Inrap
Year: 2021

description: L’article revient sur les modalités de mise en œuvre des diagnostics réalisés dans les années 1990 en amont de la construction de l’A83 et sur l’intégration de ces données au sein d’une enquête archéogéographique conduite dix ans plus tard dans le cadre d’une thèse. L’objectif est d’expliquer ce que les données archéologiques préventives ont apporté à l’analyse archéogéographique et, inversement, ce que cette dernière apporte, rétrospectivement et depuis 2009 (date de la soutenance), aux évaluations et fouilles préventives réalisées dans la plaine sud-vendéenne. Cette articulation pose plusieurs problèmes qui, tous, ont un impact sur l’exploitation et la compréhension des données archéologiques ou archéogéographiques. Ces décalages et difficultés permettent de voir les limites de cette collaboration intellectuelle quand l’analyse archéogéographique n’est pas menée en amont des fouilles et, par extension, de plaider pour de nouvelles procédures. En effet, au-delà de ce cas particulier, le but de cet article est de pointer les différents problèmes qui limitent l’intégration d’une étude archéogéographique aux diagnostics et la valorisation des leurs résultats, mais aussi de proposer des solutions pour y remédier.
description: This article looks back at methods used to implement diagnostics carried out in the 1990s prior to the construction of the A83 motorway and the integration of these data into an archaeogeographic survey conducted ten years later as part of a PhD thesis. The aim is to explain what the preventive archaeological data has brought to the archaeogeographic analysis and, inversely, what they has brought, retrospectively and since 2009 (date of the defence), to the assessments and preventive excavations carried out in the south Vendean plain. This linkage poses several problems, all of which have an impact on the use and understanding of archaeological or archaeogeographical data. These discrepancies and difficulties make it possible to see the limits of this intellectual collaboration when the archaeogeographic analysis is not carried out upstream of the excavations and, by extension, to plead for new procedures. Indeed, beyond this particular case, the aim of this article is to point out various problems which limit the integration of archaeogeographic study to diagnostics and the valorisation of their results, but also to propose solutions to remedy them.
Calculation of the Micellar Structure of Polymer Surfactant Based on the Density Functional Theory
Creators: name: Uneyama, Takashi
name: Doi, Masao
Publisher: name: arXiv
Year: 2005
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: FOS: Physical sciences

description: Amphiphilic block copolymer solutions form various micellar structures including micelles and vesicles. We applied the density functional theory for block copolymers which we have proposed to amphiphilic block copolymer systems. The 3 dimensional simulation for AB diblock copolymer solutions and AB diblock copolymer / A homopolymer blends has been done and it is shown that the spherical micelles, cylindrical micelles and spherical vesicles are formed. It is also shown that the phase diagram for AB diblock copolymer / A homopolymer blends qualitatively agrees with the phase diagram obtained by the experiment.
description: 19 pages, 9 figures, to appear in Macromolecules
Kination Dominated Reheating and Cold Dark Matter Abundance
Creators: name: Pallis, C.
Publisher: name: arXiv
Year: 2005
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We consider the decay of a massive particle under the complete or partial domination of the kinetic energy density generated by a quintessential exponential model and we impose a number of observational constraints originating from nucleosynthesis, the present acceleration of the universe and the dark-energy-density parameter. We show that the presence of kination causes a prolonged period during which the temperature is frozen to a plateau value, much lower than the maximal temperature achieved during the process of reheating in the absence of kination. The decoupling of a cold dark matter particle during this period is analyzed, its relic density is calculated both numerically and semi-analytically and the results are compared with each other. Using plausible values (from the viewpoint of particle models) for the mass and the thermal averaged cross section times the velocity of the cold relic, we investigate scenaria of equilibrium or non-equilibrium production. In both cases, acceptable results for the cold dark matter abundance can be obtained, by constraining the initial energy density of the decaying particle, its decay width, its mass and the averaged number of the produced cold relics. The required plateau value of the temperature is, in most cases, lower than about 40 GeV
description: Final version
SCHOLARSHIP AND DECISION CASES: PEDAGOGY AND STANDARDS FOR PUBLICATION
Creators: name: Lyford, Conrad P.
name: Beierlein, James G.
name: Harling, Kenneth
name: Lyford, Conrad P.
name: Beierlein, James G.
name: Harling, Kenneth
Publisher: name: Unknown
Year: 2000
Subjects: Agribusiness
Teaching/Communication/Extension/Profession

description: Case studies represent an important form of scholarly output for educators of agribusiness management. This article defines scholarship with respect to case writing. First, it explains how case studies are scholarship in the educational process. The pedagogical foundation of the case method is this method's effectiveness in developing the critical thinking skills of students. This in turn enhances learning and advances scholarly understanding. Second, it examines criteria that are used to assess the quality of cases and their accompanying teaching notes when being considered for journal publication. The standards of the International Food and Agribusiness Management Review are used to illustrate these criteria. Only by reaching these standards of scholarship will teaching notes and cases be of the quality needed to ensure that their use in the case method will develop the scholarly capabilities expected of graduates in agribusiness management
Is Inverse Demand Perverse?
Creators: name: Russo, Carlo
name: Yavapolkul, Navin
name: Zetland, David
name: Russo, Carlo
name: Yavapolkul, Navin
name: Zetland, David
Publisher: name: Unknown
Year: 2005
Subjects: Demand and Price Analysis

description: Our non-representative sample of 245 undergraduates had significantly lower scores on questions presented in the standard heterogeneous form (i.e., Direct Demand equation and Inverse Demand graph) than on questions presented in non-standard homogenous forms. This result, which holds for advanced students, highlights one reason why 95 percent of students in economics principles classes do not enter the major---economics can be gratuitously mathematical. We argue that the Inverse Demand standard hurts rather than helps economics when it is used in early courses, but that professors have no incentive to change their methods. We recommend that early classes use either no graphs or a homogenous combination of graph and equation. The "standard" should be introduced later, when benefits outweigh costs.
Exponentially-enhanced quantum sensing with non-Hermitian lattice dynamics
Creators: name: McDonald, Alexander
name: Clerk, Aashish A.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Quantum Physics (quant-ph)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We study how unique features of non-Hermitian lattice systems can be harnessed to improve Hamiltonian parameter estimation in a fully quantum setting. While the so-called non-Hermitian skin effect does not provide any distinct advantage, alternate effects yield dramatic enhancements. We show that certain asymmetric non-Hermitian tight-binding models with a $\mathbb{Z}_2$ symmetry yield a pronounced sensing advantage: the quantum Fisher information per photon increases exponentially with system size. We find that these advantages persist in regimes where non-Markovian and non-perturbative effects become important. Our setup is directly compatible with a variety of quantum optical and superconducting circuit platforms, and already yields strong enhancements with as few as three lattice sites.
description: 17 pages (including appendices), 4 figures
Energy in the Schwarzschild-de Sitter Spacetime
Creators: name: Salti, Mustafa
name: Aydogdu, Oktay
Publisher: name: arXiv
Year: 2005
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: This paper has been removed by arXiv administrators because it plagiarizes gr-qc/0301090, gr-qc/0303034, gr-qc/0212018, and gr-qc/9601044.
description: This submission has been withdrawn by arXiv administrators due to inappropriate text reuse from external sources
Consumers' Willingness to Pay for Washington Apples with Respect to Sensory Attributes
Creators: name: Hu, Ying
name: McCluskey, Jill J.
name: Durham, Catherine A.
name: Hu, Ying
name: McCluskey, Jill J.
name: Durham, Catherine A.
Publisher: name: Unknown
Year: 2005
Subjects: Consumer/Household Economics

description: To evaluate consumers' willingness to pay (WTP) for Washington apples, the effects of firmness and sweetness as the representative sensory attributes are investigated in addition to those of consumer demographics and preferences. A tasting survey was conducted in Portland, Oregon on two varieties of apples, Gala and Red Delicious. Survey data is analyzed by employing a dichotomous-choice contingent valuation method, the double-bounded model, and maximum likelihood estimates are obtained. This study shows that firmer and sweeter apples induce more WTP. Age is also an important factor affecting WTP for apples. Education, eating frequency, and race affect WTP in the Gala model but not the Red Delicious. Other variables, such as gender, annual household income level, and whether they buy organic food, do not add significant explanatory power in estimating consumers' WTP.
"Using time to map space" with the North-PHASE Legacy Survey
Creators: name: Sicilia-Aguilar, Aurora
name: Kahar, Ruhee S.
name: Hollauf, Ferdinand
Publisher: name: Zenodo
Year: 2024

description: North-PHASE stands for "Periodicity, Hot spots, Accretion Stability and Early evolution in young stellar clusters in the northern hemisphere"and it is a 5-year (2023-2028) Legacy Survey at the Javalambre Observatory. Using time-resolved, multi-cadence, multiwavelength, large field data, it can unveil structures and processes in young stars at the relevant scales for inner planet formation, while also studying the connection between stars, their formation history, and their clusters, independently of astrometry. North-PHASE is unique 'using time to map space', covering thousands YSO for a statistical study of their variability and the physical processes to which it is linked.

North-PHASE follows 6 young clusters (Tr37, CepOB3, NGC2264, IC348, IC5070, NGC1333) over 5 years, obtaining multi-band, time-resolved data for 4.5k+ stars down to 0.3 Msun. Its 6 filters (SDSS griz, Halpha, u-band) give us advantage over other surveys, being key to distinguish the complex processes that affect YSO variability (e.g. accretion, extinction by circumstellar matter, hot and cold spots) and measuring accretion. The observed timescales allow us to connect these processes to physical structures in the YSO and their disks, allowing us to map stellar properties as well as to distinguish variability types for statistically-significant samples of YSO, thus peering into the physics of magnetospheric accretion, inner disk evolution, and stellar activity. The large FoV covers entire clusters, including their outskirts, which enables us to study not only YSO evolution vs age and stellar mass, but also the role of cluster environment and initial conditions in stars, disks, and their outcomes, independently of the astrometry.

In this poster, we present the results from the first year of observations, and what the legacy of North-PHASE will be in the fields of star formation, young stellar objects, stellar variability, and the use of time measurements to track what is beyond direct resolution.
description: Poster presented at the Scientific Meeting of the Spanish Astronomical Society 2024

 https://www.granadacongresos.com/sea2024
Meeting the Universe Halfway - SUPPORTING MATERIAL - Matthew Sergeant
Creators: name: Sergeant, Matthew
Publisher: name: BathSPAdata
Year: 2021
Subjects: subject: 190406 Music Composition
subject: FOS: Arts (arts, history of arts, performing arts, music)

description: Meeting the Universe Halfway was commissioned by UK-based ensemble, The House of Bedlam, with funds provided by Arts Council England, the Royal Northern College of Music research fund and Bath Spa University research fund. The piece was premiered by the ensemble at the Royal Northern College on Music on May 2nd 2018.

This document presents SUPPORTING MATERIAL, documenting subsidiary research outcomes of the work in the form of a CONFERENCE PAPER.
The work is under copyright and may not be used without permission. Use of this repository acknowledges cooperation with its policies and relevant copyright law.
Gamma-gamma collider with W_gg < 12 GeV based on the 17.5 GeV SC linac of the European XFEL
Creators: name: Telnov, V. I.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Accelerator Physics (physics.acc-ph)
subject: High Energy Physics - Experiment (hep-ex)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We propose and demonstrate that a gamma-gamma collider with W_gg < 12 GeV can be added to the European XFEL with a minimal disruption to its main program. High-energy photons will be obtained by Compton scattering of 0.5 micron laser photons on the existing 17.5 GeV electron beams. Such a gamma-gamma collider would be an excellent place for the development and application of modern technologies: powerful lasers, optical cavities, superconducting linacs, and low-emittance electron sources -- as well as training the next generation of accelerator physicists and engineers. The physics program would include spectroscopy of C=+ resonances in various J^P states b\bar{b}, c\bar{c}, four-quark states, quark molecules and other exotica) in a mass range barely scratched by past and not covered by any current or planned experiments. Variable circular and linear polarizations will help in the determination of quantum numbers and measurement of polarization components of the gamma-gamma cross section (σ_\perp, σ_\parallel, σ_0, σ_2).
description: 8 pages, 4 figures
The Non-Monotonic Dependence of Supernova and Remnant Formation on Progenitor Rotation
Creators: name: Akiyama, Shizuka
name: Wheeler, J. Craig
Publisher: name: arXiv
Year: 2005
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: Traditional models of core collapse suggest the issue of successful versus failed supernova explosions and neutron star versus black hole formation depends monotonically on the mass (and metallicity) of the progenitor star. Here we argue that the issue of success or failure of the explosion or other possible outcomes may depend non--monotonically on the rotation of the progenitor star even at fixed progenitor mass and composition. We have computed "shellular" models of core collapse for a star of 15 M_solar with initial central angular velocity, Omega_0, in the range 0.1 -- 8 rad/s until a few hundred ms after bounce to explore qualitative trends. The non--monotonic behavior will be manifested in the rotation of the proto--neutron star and hence in the strength of the associated magnetic field that will be generated by shear in that rotating environment. We estimate that our maximally rotating and shearing models generate toroidal fields approaching or exceeding 10^17G, strengths nearing dynamical significance.
description: 20 pages, 6 figures, accepted for publication in The Astrophysical Journal. Few typos are corrected
Quintessential Inflation from Lorentzian Slow Roll
Creators: name: Benisty, David
name: Guendelman, Eduardo I.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: From the assumption that the slow roll parameter $ε$ has a Lorentzian form as a function of the e-folds number $N$, a successful model of a quintessential inflation is obtained, as succinctly studied in \cite{Benisty:2020xqm}. The form corresponds to the vacuum energy both in the inflationary and in the dark energy epochs and satisfies the condition to climb from small values of $ε$ to $1$ at the end of the inflationary epoch. We find the corresponding scalar Quintessential Inflationary potential with two flat regions. Moreover, a reheating mechanism is suggested with numerical estimation for the homogeneous evolution of the universe. The suggested mechanism is consistent with the BBN bound.
description: 9 pages. arXiv admin note: substantial text overlap with arXiv:2004.00339
Von Sardes, Meliton: Vom Passa
Creators: name: Engberding, Hieronymus
Publisher: name: Oriens christianus : Hefte für die Kunde des christlichen Orients
Year: 2024

description: Oriens christianus : Hefte für die Kunde des christlichen Orients, Bd. 51 (1967): Oriens christianus, Band 51
Is The U.S. Losing Its Competitiveness in the Global Chicken Markets: A Spatial Equilibrium Analysis
Creators: name: Djunaidi, Harjanto
name: Djunaidi, Harjanto
Publisher: name: Unknown
Year: 2005
Subjects: International Relations/Trade

description: Though the last forty years of data showed that the U.S. chicken export growth was still positive, but it has slowed in more recent years. Other countries such as Brazil, the U.S. main competitor in the global chicken trade was able to expand its market shares in recent years. Simulation results showed that the United States will play important roles in future global chicken trade providing that the U.S. firms are willing to accommodate the non-tariff trade barriers imposed by major importing countries.
Information locking in black holes
Creators: name: Smolin, John
name: Oppenheim, Jonathan
Publisher: name: arXiv
Year: 2005
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: The black hole information loss paradox has plagued physicists since Hawking's discovery that black holes evaporate thermally in contradiction to the unitarity expected by quantum mechanics. Here we show that one of the central presumptions of the debate is incorrect. Ensuring that information not escape during the semi-classical evaporation process does not require that all the information remain in the black hole until the final stages of evaporation. Using recent results in quantum information theory, we find that the amount of information that must remain in the black hole until the final stages of evaporation can be very small, even though the amount already radiated away is negligible. Quantum effects mean that information need not be additive: a small number of quanta can lock a large amount of information, making it inaccessible. When this small number of locking quanta are finally emitted, the full information (and unitarity) is restored. Only if the number of initial states is restricted will the locking mechanism leak out information early.
description: 5 pages, to appear in PRL. Presented at the Newton Institute's workshop on Quantum gravity and quantum information, Dec. 17th, 2004
Student Expectations and Preferences of Distance Course Delivery Methods
Creators: name: Diebel, Penelope L.
name: Gow, Laura R.
name: Diebel, Penelope L.
name: Gow, Laura R.
Publisher: name: Unknown
Year: 2005
Subjects: Teaching/Communication/Extension/Profession

description: Students in five courses offered with a variety of distance and on-campus delivery methods were surveyed to determine student expectations and post-evaluation of courses; student demographics; and student experiences and preferences with technology and course delivery methods. The response group was primarily degree seeking upperclassmen, taking a required course, equally split by gender and by delivery location. All students preferred a live class delivery method but videotape delivery appeared to have a higher student satisfaction level than satellite. On-campus students found simultaneous satellite delivery distracting but not detrimental to their learning experience. Students consistently misjudged the content and workload of courses.
Holomorphic disks and link invariants
Creators: name: Ozsvath, Peter
name: Szabo, Zoltan
Publisher: name: arXiv
Year: 2005
Subjects: subject: Geometric Topology (math.GT)
subject: Symplectic Geometry (math.SG)
subject: FOS: Mathematics
subject: 57R

description: We define a Floer-homology invariant for links in $S^3$, and study its properties.
description: Many minor revisions
Quantitative spectroscopic analysis of and distance to SN1999em
Creators: name: Dessart, Luc
name: Hillier, D. John
Publisher: name: arXiv
Year: 2005
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: This work presents a detailed quantitative spectroscopic analysis of, and the determination of the distance to, the type II supernovae (SN) SN1999em with CMFGEN (Dessart & Hillier 2005a), based on spectrophotometric observations at eight dates up to 40 days after discovery. We use the same iron-group metal content for the ejecta, the same power-law density distribution (with exponent n~10), and a Hubble-velocity law at all times. We adopt a H/He/C/N/O abundance pattern compatible with CNO-cycle equilibrium values for a RSG/BSG progenitor, with C/O enhanced and N depleted at later times. Based on our synthetic fits to spectrophotometric observations of SN1999em, we obtain a distance of 11.5Mpc, similar to that of Baron et al. (2004) and the Cepheid distance to the galaxy host of 11.7Mpc (Leonard et al. 2003). Similarly, based on such models, the Expanding Photosphere Method (EPM) delivers a distance of 11.6Mpc, with negligible scatter between photometric bandpass sets; there is thus nothing wrong with the EPM as such. Previous determinations using the tabulated correction factors of Eastman et al. (1996) all led to 30-50% underestimates: we find that this is caused by 1) an underestimate of the correction factors compared to the only other study of the kind by Dessart & Hillier (2005b), 2) a neglect of the intrinsic >20% scatter of correction factors, and 3) the use of the EPM at late times when severe line blanketing makes the method inaccurate. The need of detailed model computations for reliable EPM distance estimates thus defeats the appeal and simplicity of the method. However, detailed fits to SN optical spectra, based on tailored models for individual SN observations, offers a promising approach to obtaining distances with 10-20% accuracy, either through the EPM or a la Baron et al. (2004).
description: 20 pages, 13 figures, accepted for publication in A&A
Cross-Lingual Speaker Verification with Domain-Balanced Hard Prototype Mining and Language-Dependent Score Normalization
Creators: name: Thienpondt, Jenthe
name: Desplanques, Brecht
name: Demuynck, Kris
Publisher: name: arXiv
Year: 2020
Subjects: subject: Audio and Speech Processing (eess.AS)
subject: Computation and Language (cs.CL)
subject: Sound (cs.SD)
subject: FOS: Electrical engineering, electronic engineering, information engineering
subject: FOS: Computer and information sciences

description: In this paper we describe the top-scoring IDLab submission for the text-independent task of the Short-duration Speaker Verification (SdSV) Challenge 2020. The main difficulty of the challenge exists in the large degree of varying phonetic overlap between the potentially cross-lingual trials, along with the limited availability of in-domain DeepMine Farsi training data. We introduce domain-balanced hard prototype mining to fine-tune the state-of-the-art ECAPA-TDNN x-vector based speaker embedding extractor. The sample mining technique efficiently exploits speaker distances between the speaker prototypes of the popular AAM-softmax loss function to construct challenging training batches that are balanced on the domain-level. To enhance the scoring of cross-lingual trials, we propose a language-dependent s-norm score normalization. The imposter cohort only contains data from the Farsi target-domain which simulates the enrollment data always being Farsi. In case a Gaussian-Backend language model detects the test speaker embedding to contain English, a cross-language compensation offset determined on the AAM-softmax speaker prototypes is subtracted from the maximum expected imposter mean score. A fusion of five systems with minor topological tweaks resulted in a final MinDCF and EER of 0.065 and 1.45% respectively on the SdSVC evaluation set.
description: proceedings of INTERSPEECH 2020
Additional file 5 of A comprehensive survey of integron-associated genes present in metagenomes
Creators: name: Pereira, Mariana Buongermino
name: Österlund, Tobias
name: K Martin Eriksson
name: Backhaus, Thomas
name: Axelson-Fisk, Marina
name: Kristiansson, Erik
Publisher: name: figshare
Year: 2020
Subjects: subject: Microbiology
subject: FOS: Biological sciences
subject: Genetics

description: Additional file 5 Secondary structural consensus for the 5 distinct clusters of attC sites. The clusters were generated by GraphClust.
Quantum witness and invasiveness of cosmic neutrino measurements
Creators: name: Kurashvili, P.
name: Chotorlishvili, L.
name: Kouzakov, K. A.
name: Tevzadze, A. G.
name: Studenikin, A. I.
Publisher: name: arXiv
Year: 2020
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: Measurements of cosmic neutrinos have a reach potential for providing an insight into fundamental neutrino properties. For this a precise knowledge about an astrophysical environment of cosmic neutrinos propagation is needed. However this is not always possible, and the lack of information can bring about theoretical uncertainties in our physical interpretation of the results of experiments on cosmic neutrino fluxes. We formulate an approach that allows one to quantify the uncertainties using the apparatus of quantum measurement theory. We consider high-energy Dirac neutrinos emitted by some distant source and propagating towards the earth in the interstellar space. It is supposed that neutrinos can meet on their way to the detector at the earth a dense cosmic object serving as a filter that stops active, left-handed neutrinos and letting only sterile, right-handed neutrinos to propagate further. Such a filter mimics the strongest effect on the neutrino flux that can be induced by the cosmic object and that can be missed in the theoretical interpretation of the lab measurements due to the insufficient information about the astrophysical environment of the neutrino propagation. Treating the neutrino interaction with the cosmic object as the first, neutrino-spin measurement, whose result is not recorded, we study its invasive effect on the second, neutrino-flavor measurement in the lab.
description: neutrino phenomenology
Characterizing the regulation of RasGRPI and CalDag1 : two C1 domain-containing ras guanine nucleotide exchange factors
Creators: name: Anthony, Kira
Publisher: name: University of British Columbia
Year: 2009

description: RasGRP1 and CalDAG1 are two guanine nucleotide exchange factors (GEFs) for the Ras family of GTPases that share a high degree of sequence identity. However, RasGRP1 is a GEF for the classical Ras GTPases and CALDAG1 activates Rap1. These effector specificity differences suggest that there may be specific differences in the regulation of each of these GEFs. Activation of Ras occurs via recruitment of its GEFs to membranes, where the C1 domains of RasGRP1 and CalDAG1 are the most likely candidates to mediate this recruitment. The C1 domains of these GEFs are homologous to those of PKCs and may be classified into typical or atypical depending on whether or not they can bind diacylglycerol (DAG) and highly potent DAG analogues such as phorbol esters. Within both NIH 3T3 cells and T28 cells, it was determined that the C1 domain of RasGRP1 mediated its translocation to membranes in response to DAG and phorbol esters. Conversely, the isolated CalDAG1 C1 was not recruited to the plasma membrane in response to either phorbol ester stimulation in NIH 3T3 cells or T cell receptor stimulation in T28 cells. This indicates that the CalDAG1 C1 domain may not be a direct target of DAG in NIH 3T3 cells and that the RasGRPI and CalDAG1 C1 domains are biochemically distinct. Nonetheless, both RasGRP1 and CalDAG1 demonstrated an equivalent C1 domain-dependent plasma membrane localization pattern upon stimulation of the T cell receptor with the natural ligand anti- CD3[sub ε] in T28 cells. Unlike CalDAG1, RasGRP1 contains an alpha (a) helix motif that is predicted to dimerize to form a leucine zipper. In order to test whether or not RasGRP1 homodimerizes at the a helix both co-immunoprecipitation and a modified colocalization assay were employed. Taken together, the results from each of these two approaches indicate that RasGRP1 homodimerizes. Furthermore, although the results are compatible with the mediation of this protein-protein interaction by the RasGRP1 α helix, they do not unambiguously prove this hypothesis.
Plane wave/pseudopotential implementation of excited state gradients in density functional linear response theory: a new route via implicit differentiation
Creators: name: Doltsinis, Nikos L.
name: Kosov, D. S.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Other Condensed Matter (cond-mat.other)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: This work presents the formalism and implementation of excited state nuclear forces within density functional linear response theory (TDDFT) using a plane wave basis set. An implicit differentiation technique is developed for computing nonadiabatic coupling between Kohn-Sham molecular orbital wavefunctions as well as gradients of orbital energies which are then used to calculate excited state nuclear forces. The algorithm has been implemented in a plane wave/pseudopotential code taking into account only a reduced active subspace of molecular orbitals. It is demonstrated for the H$_2$ and N$_2$ molecules that the analytical gradients rapidly converge to the exact forces when the active subspace of molecular orbitals approaches completeness.
Indirect Utility Maximization under Risk: A Heterogeneous Panel Application
Creators: name: Liu, Yucan
name: Shumway, C. Richard
name: Liu, Yucan
name: Shumway, C. Richard
Publisher: name: Unknown
Year: 2005
Subjects: Risk and Uncertainty

description: The curvature properties of the indirect utility function imply a set of refutable implications in the form of comparative static results and symmetric relations for the competitive firm operating under uncertainty. These hypotheses, first derived and empirically tested under output price uncertainty by Saha and Shumway (1998), are extended in this article to the more general case of both price and quantity uncertainty and result in an important theoretical finding. Using recently developed techniques for testing unit root and cointegration in heterogeneous panels, we develop a model of U.S. agricultural production based on the time series properties of a panel of state-level data and contrast test implications with those resulting from a traditional model that presumes stationarity in all variables. Although differing in specific outcomes, the empirical tests of the refutable hypotheses render the same conclusions for both models: we fail to reject most refutable hypotheses under output price and output quantity risk, symmetry conditions implied by a twice-continuously-differentiable indirect utility function are rejected, two restrictive risk preference hypotheses are also rejected, and, at individual observations, data are generally consistent with most (but not all) of the hypotheses implied by individual states acting as though they were expected utility-maximizing firms.
Strong magnon-photon coupling within a tunable cryogenic microwave cavity
Creators: name: Potts, C. A.
name: Davis, J. P.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Applied Physics (physics.app-ph)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Instrumentation and Detectors (physics.ins-det)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: The ability to achieve strong-coupling has made cavity-magnon systems an exciting platform for the development of hybrid quantum systems and the investigation of fundamental problems in physics. Unfortunately, current experimental realizations are constrained to operate at a single frequency, defined by the geometry of the microwave cavity. In this article we realize a highly-tunable, cryogenic, microwave cavity strongly coupled to magnetic spins. The cavity can be tuned in situ by up to 1.5 GHz, approximately 15% of its original 10 GHz resonance frequency. Moreover, this system remains within the strong-coupling regime at all frequencies with a cooperativity of approximately 800.
description: 4 pages, 4 figures
ESTIMATING THE IMPACTS OF DIFFERING PRICE-RISK MANAGEMENT STRATEGIES ON THE NET INCOME OF SALINAS VALLEY LETTUCE PRODUCERS: A STOCHASTIC SIMULATION APPROACH
Creators: name: Fumasi, Roland J.
name: Fumasi, Roland J.
Publisher: name: Unknown
Year: 2005
Subjects: Farm Management
Risk and Uncertainty

description: While government safety-net programs are used to mitigate the price risk for commodity producers, limited programs exist for specialty crop producers. Specialty crop producers utilize forward contracts to reduce downside price risk. In order to estimate the method of price-risk management, if any, that is preferable to selling at market determined prices, a stochastic simulation model was constructed. The completed simulation model was used to estimate probability distributions for Salinas Valley net income under different pricing scenarios. Probabilities of reaching various net income thresholds were compared. Results indicate that Salinas Valley lettuce producers should maximize profitability by using forward contracts.
Additional file 2 of A comprehensive survey of integron-associated genes present in metagenomes
Creators: name: Pereira, Mariana Buongermino
name: Österlund, Tobias
name: K Martin Eriksson
name: Backhaus, Thomas
name: Axelson-Fisk, Marina
name: Kristiansson, Erik
Publisher: name: figshare
Year: 2020
Subjects: subject: Microbiology
subject: FOS: Biological sciences
subject: Genetics

description: Additional file 2Figure S1. Functional annotation of the integron-associated genes using TIGRFAM functional roles. Of the 13,397 integron-associated genes in our catalog 1203 genes matched a TIGRFAM with a known function. Percentages on the plot are given in relation to those numbers
Next-to-Leading Order Corrections to Single Top Quark Production and Decay at the Tevatron: 2. $t$-channel Process
Creators: name: Cao, Qing-Hong
name: Schwienhorst, Reinhard
name: Benitez, Jorge A.
name: Brock, Raymond
name: Yuan, C. -P.
Publisher: name: arXiv
Year: 2005
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We present a study of the $t$-channel mode of single top quark production at the upgraded Tevatron $p\bar{p}$ collider, including the next-to-leading order (NLO) QCD corrections to the production and the decay of a single top quark. The narrow width approximation was adopted in order to preserve the spin of the top quark in its production and decay. We discuss the effects of different $O(α_s)$ contributions on the inclusive cross section as well as various kinematic distributions after imposing the relevant cuts to select $t$-channel single top signal events.
description: 46 pages, 47 figures. One typo in LaTeX source file is corrected
Valuing Fed Cattle Using Slice Shear Force Measurements
Creators: name: Riley, John Michael
name: Schroeder, Ted C.
name: Wheeler, Tommy L.
name: Riley, John Michael
name: Schroeder, Ted C.
name: Wheeler, Tommy L.
Publisher: name: Unknown
Year: 2005
Subjects: subject: Marketing
subject: FOS: Economics and business

description: Marketing fed cattle using grid pricing has become a popluar way to sell cattle. One of the most important beef characteristics, according to consumers, is beef tenderness. USDA quality grades are poor predictors of meat tenderness. However, mechanical shear force does objectively measure tenderness. This study illustrates how problematic USDA quality grades are at assessing accurate beef tenderness and proposes and evaluates a tenderness-based valuation system based on slice shear force technology. We show that cattle of all quality grades are substantially over- or under-valued when using a grid realtive to a tenderness-based valuation system.
Additional file 2 of Effectiveness of the level of personal relevance of visual autobiographical stimuli in the induction of positive emotions in young and older adults: pilot study protocol for a randomized controlled trial
Creators: name: Fernández, Dolores
name: Ros, Laura
name: Sánchez-Reolid, Roberto
name: Ricarte, Jorge Javier
name: Latorre, José Miguel
Publisher: name: figshare
Year: 2020
Subjects: subject: Neuroscience
subject: 111714 Mental Health
subject: FOS: Health sciences

description: Additional file 2. Sociodemographic questionnaire.
Sorting and Blending Under Quality Uncertainty: Application to Wheat Protein
Creators: name: Johnson, D. Demcey
name: Johnson, D. Demcey
Publisher: name: Unknown
Year: 2005
Subjects: subject: Industrial Organization
subject: Marketing
subject: FOS: Economics and business
subject: Risk and Uncertainty

description: Quality uncertainty is of considerable interest to the grain industry. In this paper, uncertainty is incorporated in a model of grain blending decisions. A mixed-integer, nonlinear optimization problem is developed. Simulations illustrate the effect of crop quality on blending decisions, and the effect of blending activities on the distribution of protein within a wheat marketing channel.
Testing Bose-Einstein Condensate dark matter models with the SPARC galactic rotation curves data
Creators: name: Crăciun, Maria
name: Harko, Tiberiu
Publisher: name: arXiv
Year: 2020
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: Astrophysics of Galaxies (astro-ph.GA)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: The nature of one of the fundamental components of the Universe, the dark matter, is still unknown. One interesting possibility is that dark matter could exist in the form of a self-interacting Bose-Einstein Condensate (BEC). The fundamental properties of the dark matter in this model are determined by two parameters only, the mass and the scattering length of the particle. In the present study we investigate the properties of the galactic rotation curves in the BEC dark matter model, with quadratic self-interaction, by using 173 galaxies from the recently published Spitzer Photomery \& Accurate Rotation Curves (SPARC) data. We fit the theoretical predictions of the rotation curves in the slowly rotating BEC models with the SPARC data by using genetic algorithms. We provide an extensive set of figures of the rotation curves, and we obtain estimates of the relevant astrophysical parameters of the BEC dark matter halos (central density, angular velocity and static radius). The density profiles of the dark matter distribution are also obtained. It turns out that the BEC model gives a good description of the SPARC data. The presence of the condensate dark matter could also provide a solution for the core/cusp problem.
description: 28 pages, 22 figures, accepted for publication in EPJC; references added
Gravity-induced resonances in a rotating trap
Creators: name: Bialynicki-Birula, Iwo
name: Sowinski, Tomasz
Publisher: name: arXiv
Year: 2004
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: It is shown that in an anisotropic harmonic trap that rotates with the properly chosen rotation rate, the force of gravity leads to a resonant behavior. Full analysis of the dynamics in an anisotropic, rotating trap in 3D is presented and several regions of stability are identified. On resonance, the oscillation amplitude of a single particle, or of the center of mass of a many-particle system (for example, BEC), grows linearly with time and all particles are expelled from the trap. The resonances can only occur when the rotation axis is tilted away from the vertical position. The positions of the resonances (there are always two of them) do not depend on the mass but only on the characteristic frequencies of the trap and on the direction of the angular velocity of rotation.
description: 10 pages, 12 figures, to appear in Physical Review A
II. Koptologische Arbeitskonferenz Halle a. d. S.
Creators: name: Hammerschmidt, Ernst
Publisher: name: Oriens christianus : Hefte für die Kunde des christlichen Orients
Year: 2024

description: Oriens christianus : Hefte für die Kunde des christlichen Orients, Bd. 51 (1967): Oriens christianus, Band 51
Mechanical properties of graphene oxide: the impact of functional groups
Creators: name: Tavakol, Mahdi
name: Montazeri, Abbas
name: Aboutalebi, S. Hamed
name: Asgari, Reza
Publisher: name: arXiv
Year: 2020
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: In the current study, mechanical characteristics of graphene oxide (GO) as a promising substitute of graphene are systematically studied through molecular dynamics simulation. For this purpose, several GO samples having different concentrations of epoxide and hydroxyl functional groups are considered. The results reveal that increasing the epoxide coverage causes a noticeable deterioration in the mechanical characteristics of GO systems. This change is correlated with the increase of the formation of ripples in the structure upon increasing the epoxide coverage. Moreover, investigating the bond lengths in the system, it is concluded that the higher epoxide percentage leads to an increase in the length of single and hybrid resonance bonds leading to an overall deterioration of the mechanical properties of GO samples. Additionally, our results demonstrate that high concentration of functional groups can lead to a negative Poisson ratio. Increasing the amount of hydroxyl groups shows the same declining effect on the Young modulus. In a graphene system containing both epoxide and hydroxyl groups, it is deduced that a higher percentage of the former can result in a higher residual strain because of the formation of more ripples within the system.
Additional file 1 of Increased salt tolerance in Zymomonas mobilis strain generated by adaptative evolution
Creators: name: Fuchino, Katsuya
name: Bruheim, Per
Publisher: name: figshare
Year: 2020
Subjects: subject: Genetics
subject: FOS: Biological sciences

description: Additional file 1: Figure S1. Metabolite abundance [pmol.mg−1 (CDW)] in each strain was measured by mass spectrometry-based metabolomics. The data was used for log2 fold ratio heatmap in the Fig. 5. Table S1. A list of abbreviation of measured metabolites. Table S2. A list of detected mutations in the lab stock Zm6 strain. Table S3. The CDW/OD600 conversion factor in each strain under saline/non-saline conditions.