cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Automated model linkages: the example of CAPRI
Creators: name: Britz, Wolfgang
name: Britz, Wolfgang
Publisher: name: Unknown
Year: 2008
Subjects: subject: Agricultural and Food Policy
subject: Research Methods/ Statistical Methods
subject: model linkage
subject: linking economic and environmental models
subject: policy impact assessment

description: Increasing demand for policy impact assessment regarding social, economic and environmental aspects asks for combined application of different models and tools. The paper discusses concepts and challenges in linking models, taking CAPRI (Common Agricultural Policy Regionalised Impact) model as an example. CAPRI combines different economic models, spatial downscaling and interfaces to bio-physical components. 250 non-linear regional programming models with econometrically estimated costs functions cover the EU-27, Norway and Western Balkans. They are consistently linked to a spatial globally closed trade model, covering 60 countries / country blocks and 50 primary and secondary agricultural products. The link is based on sequential calibration: the market models prices drive the programming models whereas its supply and feed demand curves are calibrated to the programming models’ results, iteratively repeated to convergence. CAPRI integrates projection results from other model systems in the baseline generation and calibrates the supply models to econometric estimations or the supply response from other models as in SEAMLESS. The spatial down-scaling component breaks down the regional EU-27 results regarding cropping shares, crop yields, animal stocking densities and fertilizer application rates to about 140 000 1x1 km pixel cluster and links these results to a statistical meta model of the bio-physical model DNDC.
Impact of selection for accelerated pre-adult development on pre-adult mortality of Drosophila melanogaster populations, fed up to critical duration and fed up to natural pupation time from Evolution of reduced minimum critical size as a response to selection for rapid pre-adult development in Drosophila melanogaster
Creators: name: Khushboo Sharma
name: Mishra, Nalini
name: Mallikarjun N. Shakarad
Publisher: name: The Royal Society
Year: 2020
Subjects: subject: Evolutionary Biology
subject: FOS: Biological sciences
subject: Developmental Biology

description: Supplementary Figure 1. Average (± s.e) pre-adult survival of selected and control populations. Magenta- adults that emerged from larvae fed up to critical duration, subsequent to which they were on non-nutritive agar-agar. Green- adults that emerged from larvae fed up to their natural pupation time.
Investigating the physical and geometrical parameters of the cosmological models with anisotropic background
Creators: name: Mishra, B.
name: Tripathy, S. K.
Publisher: name: arXiv
Year: 2020
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: In this paper, we have investigated some accelerating cosmological models at the backdrop of an anisotropic metric in an extended gravity theory. Two viable cosmological models one with a little rip behaviour and the other with a hyperbolic form of Hubble parameter have been constructed. The dynamical aspects of the models along with some physical and geometrical parameters are analysed. Both the models presented here evolve in the phantom-like region and overlap with $Λ$CDM model at late times. We carried out a geometrical diagnosis of the model to show the viability of the models.
description: 14 pages, 10 figures, Accepted version in Physica Scripta
MC2G: An Efficient Algorithm for Matrix Completion with Social and Item Similarity Graphs
Creators: name: Zhang, Qiaosheng
name: Suh, Geewon
name: Suh, Changho
name: Tan, Vincent Y. F.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Machine Learning (cs.LG)
subject: Information Retrieval (cs.IR)
subject: Information Theory (cs.IT)
subject: Signal Processing (eess.SP)
subject: FOS: Computer and information sciences
subject: FOS: Electrical engineering, electronic engineering, information engineering

description: In this paper, we design and analyze MC2G (Matrix Completion with 2 Graphs), an algorithm that performs matrix completion in the presence of social and item similarity graphs. MC2G runs in quasilinear time and is parameter free. It is based on spectral clustering and local refinement steps. The expected number of sampled entries required for MC2G to succeed (i.e., recover the clusters in the graphs and complete the matrix) matches an information-theoretic lower bound up to a constant factor for a wide range of parameters. We show via extensive experiments on both synthetic and real datasets that MC2G outperforms other state-of-the-art matrix completion algorithms that leverage graph side information.
PT-Symmetric Cubic Anharmonic Oscillator as a Physical Model
Creators: name: Mostafazadeh, Ali
Publisher: name: arXiv
Year: 2004
Subjects: subject: Quantum Physics (quant-ph)
subject: High Energy Physics - Theory (hep-th)
subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: We perform a perturbative calculation of the physical observables, in particular pseudo-Hermitian position and momentum operators, the equivalent Hermitian Hamiltonian operator, and the classical Hamiltonian for the PT-symmetric cubic anharmonic oscillator, $ H=p^1/(2m)+μ^2x^2/2+iεx^3 $. Ignoring terms of order $ ε^4 $ and higher, we show that this system describes an ordinary quartic anharmonic oscillator with a position-dependent mass and real and positive coupling constants. This observation elucidates the classical origin of the reality and positivity of the energy spectrum. We also discuss the quantum-classical correspondence for this PT-symmetric system, compute the associated conserved probability density, and comment on the issue of factor-ordering in the pseudo-Hermitian canonical quantization of the underlying classical system.
description: 16 pages, 3 figures, Erratum to published version added
Morphological instabilities of a thin film on a Penrose lattice: a Monte Carlo study
Creators: name: Olivi-Tran, N.
name: Boulle, A.
name: Gaudon, A.
name: Dauger, A.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: We computed by a Monte Carlo method the thermal relaxation of a polycrystalline thin film deposited on a Penrose lattice. The thin film was modelled by a 2 dimensional array of elementary domains, which have each a given height. During the Monte Carlo process, the height of each of these elementary domains is allowed to change as well as their crystallographic orientation. After equilibrium is reached at a given numerical temperature, all elementary domains have changed their orientation into the same one and small islands appear, preferentially on the domains of the Penrose lattice located in the center of heptagons. This method is a new numerical approach to study the influence of the substrate and its defects on the islanding process of polycrystalline films.
description: 9 pages,5 figures
Magnitude of change in larval growth rate in the final two hours prior to attainment of critical size in selected and control populations. from Evolution of reduced minimum critical size as a response to selection for rapid pre-adult development in Drosophila melanogaster
Creators: name: Khushboo Sharma
name: Mishra, Nalini
name: Mallikarjun N. Shakarad
Publisher: name: The Royal Society
Year: 2020
Subjects: subject: Evolutionary Biology
subject: FOS: Biological sciences
subject: Developmental Biology

description: Supplementary Table 1. Average (± s.e) weight gain during last two hours prior to critical size in selected and control population
The didactic value of linking models: experiences from the LEI model funnel
Creators: name: Helming, John F.M.
name: Banse, Martin
name: Helming, John F.M.
name: Banse, Martin
Publisher: name: Unknown
Year: 2008
Subjects: subject: Agricultural and Food Policy
subject: Research Methods/ Statistical Methods
subject: economic models
subject: combined models
subject: quantitative policy analysis

description: The complexity of agri-environmental economic issues is such that a model that is fully consistent at all levels of aggregation and all type of questions to be addressed is not available at the Agricultural Economics Research Institute in the Hague LEI. Such a model is probably also not feasible. At LEI this problem is solved by linking models at different scales of analysis: global economic, national economy-wide, regional agricultural, national spatial and farm levels. This linked model system enlarges scope and consistency of the analysis. The goal of the model linking, however, is not a full integration and, ultimately, simultaneous optimization of the models. Therefore, the different models of the LEI model funnel are often rather loosely linked. Hence, it is not surprising that the models sometimes produce different results even for the shared variables. This article describes the difficulties to share and exchange information between different models and identifies possible solutions which aim at a more consistent analysis along the models combined at LEI while maintaining the diversity of modelling approaches.
Sparse Approximate Multifrontal Factorization with Butterfly Compression for High Frequency Wave Equations
Creators: name: Liu, Yang
name: Ghysels, Pieter
name: Claus, Lisa
name: Li, Xiaoye Sherry
Publisher: name: arXiv
Year: 2020
Subjects: subject: Mathematical Software (cs.MS)
subject: Computational Engineering, Finance, and Science (cs.CE)
subject: FOS: Computer and information sciences
subject: 15A23, 65F50, 65R10, 65R20

description: We present a fast and approximate multifrontal solver for large-scale sparse linear systems arising from finite-difference, finite-volume or finite-element discretization of high-frequency wave equations. The proposed solver leverages the butterfly algorithm and its hierarchical matrix extension for compressing and factorizing large frontal matrices via graph-distance guided entry evaluation or randomized matrix-vector multiplication-based schemes. Complexity analysis and numerical experiments demonstrate $\mathcal{O}(N\log^2 N)$ computation and $\mathcal{O}(N)$ memory complexity when applied to an $N\times N$ sparse system arising from 3D high-frequency Helmholtz and Maxwell problems.
Interactions of cosmic neutrinos with nucleons in the RS model
Creators: name: Kisselev, A. V.
Publisher: name: arXiv
Year: 2004
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We consider the scattering of the brane fields due to t-channel massive graviton exchanges in the Randall-Sundrum model. The eikonal amplitude is analytically calculated and both differential and total neutrino-nucleon cross sections are estimated. The event rate of quasi-horizontal air showers induced by cosmic neutrinos, which can be detected at the Pierre Auger Observatory, is presented for two different fluxes of cosmogenic neutrinos.
description: 23 pages, LaTeX2e, 11 eps figures
Priority progress decoding
Creators: name: Kirsh, Lowell
Publisher: name: University of British Columbia
Year: 2009

description: This thesis presents a framework for decoding video in the absence of sufficient computational resources. Most current decoding systems require there to always be sufficient resources available. We have implemented a video decoding module for the QStream video streaming system to adapt the decoding process to the available resources. A distinguishing characteristic of our framework is the ability to decode a video in priority order and drop low priority work if there are not enough resources to fully decode the video. In our particular case we adapt by dropping frames. Additionally, we make no use of a feedback loop as part of the data dropping mechanism. This is important because the variability of video content makes it difficult to predict the relationship between CPU requirements and video content. We argue that due to the inherent variability in both content and devices that an adaptive approach is necessary. We have found our approach to decoding to require minimal computational overhead.
How to deal with the challenges of linking a large number of individual national models: the case of the AGMEMOD Partnership
Creators: name: Salamon, Petra
name: Chantreuil, Frederic
name: Donnellan, Trevor
name: Erjavec, Emil
name: Esposti, Roberto
name: Hanrahan, Kevin F.
name: Van Leeuwen, Myrna
name: Bouma, Foppe
name: Dol, Wietse
name: Salputra, Guna
name: Salamon, Petra
name: Chantreuil, Frederic
name: Donnellan, Trevor
name: Erjavec, Emil
name: Esposti, Roberto
name: Hanrahan, Kevin F.
name: Van Leeuwen, Myrna
name: Bouma, Foppe
name: Dol, Wietse
name: Salputra, Guna
Publisher: name: Unknown
Year: 2008
Subjects: subject: Agricultural and Food Policy
subject: Research Methods/ Statistical Methods
subject: linking models
subject: policy analysis
subject: partial equilibrium modelling
subject: Common Agricultural Policy (CAP)

description: The AGMEMOD Partnership seeks to capture the inherent existing heterogeneity of agricultural systems by linking together individual EU Member State models, an aggregated EU model and several accession countries into one single model, while still maintaining analytical consistency. Although this approach facilitates the comparison of the impact of a policy change across different Member States, it generates challenges in practical implementation, ranging from significant communication and administration requirements, to aggregation and consistency issues. This contribution provides insights into the different challenges posed to the scientists and discusses the key issues for maintenance and further development of such a complex system. Specific attention is paid to technical devices and tools as well as to the design of institutional settings to achieve consistency.
Predictability of Power Grid Frequency
Creators: name: Kruse, Johannes
name: Schäfer, Benjamin
name: Witthaut, Dirk
Publisher: name: arXiv
Year: 2020
Subjects: subject: Physics and Society (physics.soc-ph)
subject: Systems and Control (eess.SY)
subject: Signal Processing (eess.SP)
subject: Data Analysis, Statistics and Probability (physics.data-an)
subject: Machine Learning (stat.ML)
subject: FOS: Physical sciences
subject: FOS: Electrical engineering, electronic engineering, information engineering
subject: FOS: Computer and information sciences

description: The power grid frequency is the central observable in power system control, as it measures the balance of electrical supply and demand. A reliable frequency forecast can facilitate rapid control actions and may thus greatly improve power system stability. Here, we develop a weighted-nearest-neighbor (WNN) predictor to investigate how predictable the frequency trajectories are. Our forecasts for up to one hour are more precise than averaged daily profiles and could increase the efficiency of frequency control actions. Furthermore, we gain an increased understanding of the specific properties of different synchronous areas by interpreting the optimal prediction parameters (number of nearest neighbors, the prediction horizon, etc.) in terms of the physical system. Finally, prediction errors indicate the occurrence of exceptional external perturbations. Overall, we provide a diagnostics tool and an accurate predictor of the power grid frequency time series, allowing better understanding of the underlying dynamics.
description: 12 pages, 8 figures, Supplementary material on data preparation
Hanle Effect in Transport through Quantum Dots Coupled to Ferromagnetic Leads
Creators: name: Braun, Matthias
name: König, Jürgen
name: Martinek, Jan
Publisher: name: arXiv
Year: 2004
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We suggest a series of transport experiments on spin precession in quantum dots coupled to one or two ferromagnetic leads. Dot spin states are created by spin injection and analyzed via the linear conductance through the dot, while an applied magnetic field gives rise to the Hanle effect. Such a Hanle experiment can be used to determine the spin lifetime in the quantum dot, to measure the spin injection efficiency into the dot, as well as proving the existence of intrinsic spin precession which is driven by the Coulomb interaction.
description: 7 pages, 4 figures, minor changes, added references
Mismatched Data Detection in Massive MU-MIMO
Creators: name: Jeon, Charles
name: Maleki, Arian
name: Studer, Christoph
Publisher: name: arXiv
Year: 2020
Subjects: subject: Information Theory (cs.IT)
subject: Signal Processing (eess.SP)
subject: FOS: Computer and information sciences
subject: FOS: Electrical engineering, electronic engineering, information engineering

description: We investigate mismatched data detection for massive multi-user (MU) multiple-input multiple-output (MIMO) wireless systems in which the prior distribution of the transmit signal used in the data detector differs from the true prior. In order to minimize the performance loss caused by the prior mismatch, we include a tuning stage into the recently proposed large-MIMO approximate message passing (LAMA) algorithm, which enables the development of data detectors with optimal as well as sub-optimal parameter tuning. We show that carefully-selected priors enable the design of simpler and computationally more efficient data detection algorithms compared to LAMA that uses the optimal prior, while achieving near-optimal error-rate performance. In particular, we demonstrate that a hardware-friendly approximation of the exact prior enables the design of low-complexity data detectors that achieve near individually-optimal performance. Furthermore, for Gaussian priors and uniform priors within a hypercube covering the quadrature amplitude modulation (QAM) constellation, our performance analysis recovers classical and recent results on linear and non-linear massive MU-MIMO data detection, respectively.
description: to appear in the IEEE Transactions on Signal Processing. arXiv admin note: text overlap with arXiv:1605.02324
title: ‘Twig-like’ middle cerebral artery
Creators: name: Occhipinti, Mariaelena
Publisher: name: EURORAD
Year: 2021
Subjects: subject: Neuroradiology
subject: Anatomy
subject: Arteries / Aorta
subject: Catheter arteriography
subject: CT-Angiography
subject: MR-Angiography
subject: Clinical Cases

description: Clinical History: A 34-year-old man was admitted to the emergency department with one-day history of nausea, dizziness, and gait difficulty with lateropulsion. Remote clinical history was unremarkable. Neurological examination was normal except for slight dysmetria on the right finger-nose coordination test. Brain CT and CT-angiography were requested.

description: 34 years, male
Frustrated Potts: Multiplicity Eliminates Chaos via Reentrance
Creators: name: Turkoglu, Alpar
name: Berker, A. Nihat
Publisher: name: arXiv
Year: 2020
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Mathematical Physics (math-ph)
subject: Chaotic Dynamics (nlin.CD)
subject: FOS: Physical sciences

description: The frustrated q-state Potts model is solved exactly on a hierarchical lattice, yielding chaos under rescaling, namely the signature of a spin-glass phase, as previously seen for the Ising (q=2) model. However, the ground-state entropy introduced by the (q>2)-state antiferromagnetic Potts bond induces an escape from chaos as multiplicity q increases. The frustration versus multiplicity phase diagram has a reentrant (as a function of frustration) chaotic phase.
description: Published version, 4 pages, 6 figures
An integrated model platform for the economic assessment of agricultural policies in the European Union
Creators: name: Perez Dominguez, Ignacio
name: Gay, Stephan Hubertus
name: M'Barek, Robert
name: Perez Dominguez, Ignacio
name: Gay, Stephan Hubertus
name: M'Barek, Robert
Publisher: name: Unknown
Year: 2008
Subjects: subject: Agricultural and Food Policy
subject: Research Methods/ Statistical Methods
subject: European Commission
subject: Common Agricultural Policy
subject: economic models
subject: quantitative analysis

description: A number of economic models have been applied to analyse the Common Agricultural Policy. The partial equilibrium models CAPRI, ESIM, AGLINK, AGMEMOD and CAPSIM and the general equilibrium models GLOBE and GTAP are currently integrated in a modelling platform for Agro-Economic Policy Analysis in the premises of the Joint Research Centre in Seville in close collaboration with Directorate- General for Agriculture and Rural Development. Each of the models included has a specific focus, enlarging the capacity for complex policy analysis within this platform. This can be done by comparing the results of different models or by linking them, where several methodological options are available. This paper gives some insights on current applications in the field of model integration for agricultural policy analysis.
When does Wenzel's extension of Young's equation for the contact angle of droplets apply? A density functional study
Creators: name: Egorov, Sergei A.
name: Binder, Kurt
Publisher: name: arXiv
Year: 2020
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: FOS: Physical sciences

description: he contact angle of a liquid droplet on a surface under partial wetting conditions differs for a nanoscopically rough or periodically corrugated surface from its value for a perfectly flat surface. Wenzel's relation attributes this difference simply to the geometric magnification of the surface area (by a factor $r_{\rm w}$), but the validity of this idea is controversial. We elucidate this problem by model calculations for a sinusoidal corrugation of the form $z_{\rm wall}(y) = Δ\cos(2πy/λ)$ , for a potential of short range $σ_{\rm w}$ acting from the wall on the fluid particles. When the vapor phase is an ideal gas, the change of the wall-vapor surface tension can be computed exactly, and corrections to Wenzel's equation are typically of order $σ_{\rm w}Δ/λ^2$. For fixed $r_{\rm w}$ and fixed $σ_{\rm w}$ the approach to Wenzel's result with increasing $λ$ may be nonmonotonic and this limit often is only reached for $λ/σ_{\rm w}>30$. For a non-additive binary mixture, density functional theory is used to work out the density profiles of both coexisting phases both for planar and corrugated walls, as well as the corresponding surface tensions. Again, deviations from Wenzel's results of similar magnitude as in the above ideal gas case are predicted. Finally, a crudely simplified description based on the interface Hamiltonian concept is used to interpret corresponding simulation results along similar lines. Wenzel's approach is found to generally hold when $λ/σ_{\rm w}\gg 1$, $Δ/λ<1$, and conditions avoiding proximity of wetting or filling transitions.
Scaling exponents and probability distributions of DNA end-to-end distance
Creators: name: Valle, Francesco
name: Favre, Melanie
name: Rios, Paolo De Los
name: Rosa, Angelo
name: Dietler, Giovanni
Publisher: name: arXiv
Year: 2005
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: Correlation length exponent $ν$ for long linear DNA molecules was determined by direct measurement of the average end-to-end distance as a function of the contour length $s$ by means of atomic force microscopy (AFM). Linear DNA, up to 48'502 base pairs (bp), was irreversibly deposited from a solution onto silanized mica and imaged in air. Under the adsorption conditions used, the DNA is trapped onto the surface without any two-dimensional equilibration. The measured exponent is $ν= 0.589 \pm 0.006$, in agreement with the theoretical 3D value of $ν= 0.5880 \pm 0.0010$. The persistence length $\ell_p$ of DNA was estimated to be 44$\pm$3 nm, in agreement with the literature values. The distribution of the end-to-end distances for a given contour length $s$ and the exponents characterizing the distribution were determined for different $s$. For $s$ smaller or comparable to $\ell_p$, a delta function like distribution was observed, while for larger $s$, a probability distribution of the type $x^{d-1}x^g e^{-bx^δ}$ was observed with $g=0.33\pm0.22$ and $δ=2.58\pm0.76$. These values are compared to the theoretical exponents for Self-Avoiding Walk (SAW): namely $g=\frac{γ-1}ν$ and $δ=(1-ν)^{-1}$. So for $d=2$, $g\approx0.44$ and $δ=4$, while for $d=3$, $g\approx0.33$ and $δ\approx2.5$. The derived entropic exponent $γ$ is $γ=1.194\pm0.129$. The present data indicate that the DNA behaves on large length scales like a 3 dimensional SAW.
Strings in a 2-d Extremal Black Hole
Creators: name: Giveon, Amit
name: Sever, Amit
Publisher: name: arXiv
Year: 2004
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: String theory on 2-d charged black holes corresponding to (SL(2)xU(1)_L)/U(1) exact asymmetric quotient CFTs are investigated. These backgrounds can be embedded, in particular, in a two dimensional heterotic string. In the extremal case, the quotient CFT description captures the near horizon physics, and is equivalent to strings in AdS_2 with a gauge field. Such string vacua possess an infinite space-time Virasoro symmetry, and hence enhancement of global space-time Lie symmetries to affine symmetries, in agreement with the conjectured AdS_2/CFT_1 correspondence. We argue that the entropy of these 2-d black holes in string theory is compatible with semi-classical results, and show that in perturbative computations part of an incoming flux is absorbed by the black hole. Moreover, on the way we find evidence that the 2-d heterotic string is closely related to the N=(2,1) string, and conjecture that they are dual.
description: 1+22 pages, harvmac, 1 eps figure; v2: refs. added, typo corrected
The challenges of model based policy advice
Creators: name: Brockmeier, Martina
name: Kleinhanss, Werner
name: Offermann, Frank
name: Brockmeier, Martina
name: Kleinhanss, Werner
name: Offermann, Frank
Publisher: name: Unknown
Year: 2008
Subjects: subject: Agricultural and Food Policy
subject: Teaching/Communication/Extension/Profession
subject: model network
subject: policy advice

description: In policy consultation, communicating model results to administration and policy makers has always proven to be a challenge for scientists. Many of the relevant preconditions for effective and successful policy advice are aggravated when results are based on the simultaneous use of a multitude of different models. This paper identifies key issues – e.g., relations to administration; correct identification of prevailing objectives of all agents involved; ability to run scenarios ‘in time’ - and discusses strategies for successful communication based on the experiences of the vTI model network. Specific attention is paid to the issue of communicating ‘conflicting’ results of different models : while often seen as a source for scientific insight, such ‘inconsistencies’ have proven to be a major obstacle for acceptance in a non-academic institutional setting. The experiences, as well as the literature, point specifically to the importance of tight linkages between modellers and policy makers, and the need to abandon decisionist or technocratic approaches of policy advice in favour of pragmatic approaches stressing the bilateral nature of communication.
Bayesian inference for compact binary coalescences with BILBY: Validation and application to the first LIGO--Virgo gravitational-wave transient catalogue
Creators: name: Romero-Shaw, I. M.
name: Talbot, C.
name: Biscoveanu, S.
name: D'Emilio, V.
name: Ashton, G.
name: Berry, C. P. L.
name: Coughlin, S.
name: Galaudage, S.
name: Hoy, C.
name: Huebner, M.
name: Phukon, K. S.
name: Pitkin, M.
name: Rizzo, M.
name: Sarin, N.
name: Smith, R.
name: Stevenson, S.
name: Vajpeyi, A.
name: Arene, M.
name: Athar, K.
name: Banagiri, S.
name: Bose, N.
name: Carney, M.
name: Chatziioannou, K.
name: Clark, J. A.
name: Colleoni, M.
name: Cotesta, R.
name: Edelman, B.
name: Estelles, H.
name: Garcia-Quiros, C.
name: Ghosh, Abhirup
name: Green, R.
name: Haster, C. -J.
name: Husa, S.
name: Keitel, D.
name: Kim, A. X.
name: Hernandez-Vivanco, F.
name: Hernandez, I. Magana
name: Karathanasis, C.
name: Lasky, P. D.
name: De Lillo, N.
name: Lower, M. E.
name: Macleod, D.
name: Mateu-Lucena, M.
name: Miller, A.
name: Millhouse, M.
name: Morisaki, S.
name: Oh, S. H.
name: Ossokine, S.
name: Payne, E.
name: Powell, J.
name: Pratten, G.
name: Puerrer, M.
name: Ramos-Buades, A.
name: Raymond, V.
name: Thrane, E.
name: Veitch, J.
name: Williams, D.
name: Williams, M. J.
name: Xiao, L.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: Gravitational waves provide a unique tool for observational astronomy. While the first LIGO--Virgo catalogue of gravitational-wave transients (GWTC-1) contains eleven signals from black hole and neutron star binaries, the number of observations is increasing rapidly as detector sensitivity improves. To extract information from the observed signals, it is imperative to have fast, flexible, and scalable inference techniques. In a previous paper, we introduced BILBY: a modular and user-friendly Bayesian inference library adapted to address the needs of gravitational-wave inference. In this work, we demonstrate that BILBY produces reliable results for simulated gravitational-wave signals from compact binary mergers, and verify that it accurately reproduces results reported for the eleven GWTC-1 signals. Additionally, we provide configuration and output files for all analyses to allow for easy reproduction, modification, and future use. This work establishes that BILBY is primed and ready to analyse the rapidly growing population of compact binary coalescence gravitational-wave signals.
description: 29 pages, 26 figures
One Hundred and Eight Rosary Beads in Landscape and Architecture Design
Creators: name: Sparavigna, Amelia Carolina
Publisher: name: Zenodo
Year: 2024
Subjects: Archaeoastronomy
Numerology

description: A study about monuments containing 108 architectonic and decorative elements,
is here proposed in the framework of their environments and cultural landscapes.
The number is related to Lord Buddha and to the beads of the Japamala that here
we call as “rosary”. Number 108 is highly relevant in Hinduism too. In the proposed
discussion we will illustrate some examples regarding the presence of 108 elements
(shrines, stupas, statues) in Buddhist and Hinduist architectures. Among the
monumental sites here considered, the reader can find the well-known Candi Borobudur.
We will also refer to a publication regarding the temples of Pawon, Mendut and Ngawen,
the archaeologists found linked to Borobudur.
Detection of Near-IR CO Absorption Bands in R Coronae Borealis Stars
Creators: name: Tenenbaum, Emily D.
name: Clayton, Geoffrey C.
name: Asplund, Martin
name: Engelbracht, C. W.
name: Gordon, Karl D.
name: Hanson, M. M.
name: Rudy, Richard J.
name: Lynch, David K.
name: Mazuk, S.
name: Venturini, Catherine C.
name: Puetter, R. C.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: R Coronae Borealis (RCB) stars are hydrogen-deficient, carbon-rich pulsating post-AGB stars that experience massive irregular declines in brightness caused by circumstellar dust formation. The mechanism of dust formation around RCB stars is not well understood. It has been proposed that CO molecules play an important role in cooling the circumstellar gas so that dust may form. We report on a survey for CO in a sample of RCB stars. We obtained H- and K-band spectra including the first and second overtone CO bands for eight RCB stars, the RCB-like star, DY Per and the final-helium-flash star, FG Sge. The first and second overtone CO bands were detected in the cooler (T(eff)<6000 K) RCB stars, Z Umi, ES Aql, SV Sge and DY Per. The bands are not present in the warmer (T(eff)>6000 K) RCB stars, R CrB, RY Sgr, SU Tau, XX Cam. In addition, first overtone bands are seen in FG Sge, a final-helium-flash star that is in an RCB-like phase at present. Effective temperatures of the eight RCB stars range from 4000 to 7250 K. The observed photospheric CO absorption bands were compared to line-blanketed model spectra of RCB stars. As predicted by the models, the CO bands are strongest in the coolest RCB stars and not present in the warmest. No correlation was found between the presence or strength of the CO bands and dust formation activity in the stars.
description: 13 oages, 3 figures, AJ in press
Policy driven replication
Creators: name: Brodsky, Dmitry D.
Publisher: name: University of British Columbia
Year: 2009

description: From the inception of digital storage, ensuring that data is not lost due to user error, malicious acts, and hardware failure has always been, and still remains, a challenging open problem. This problem is exacerbated by the exponential increase in storage capacity, the proliferation of new digital media, and our growing reliance on digital storage. Today, a typical user stores financial and medical records, music and movie libraries, photo albums, etc, the loss of some of which can be catastrophic. The advent of large robust networks has made it possible to replicate data on remote hosts to protect data from loss. Unfortunately, the growth of network bandwidth is far outstripped by both the growth of storage capacity and our ability to fill it. Thus, most replication systems that uniformly replicate all the data are incapable of protecting the ever increasing amount of data. One important observation is that not all data is created equal. Data such as commercial music and movie libraries can be, given time, rebuilt. Data such as personal, health, and financial records, are much more difficult to reconstruct. Since resources such as network bandwidth are limited, they should be used to protect the important data. In this thesis we propose a Policy Driven Replication (PDR) system that prioritizes data replication according to user-defined policies that specify what data is to be protected, from what failures, and to what extent. By prioritizing what data is replicated, the system conserves limited resources and protects high-priority data from high-probability failures. PDR is a userlevel process that hooks into the file system. It is notified of file creation and modification events, and replicates the data to the hosts specified in the file's policy. In addition, the replica nodes specified in the policy are monitored for liveliness to ensure the policy is followed. PDR provides a model to describe replica nodes and a generic plug-in interface that facilitates the creation of appropriate user interfaces to manage replication policies and to translate these policies into a set of replica nodes. Replica node selection is sensitive to the system topology so that hotspots and message storms are not created.
Role of biologically important imidazole moiety on the antimicrobial and anticancer activity of Fe(III) and Mn(II) complexes
Creators: name: M. Shahnawaz Khan
name: Mohd Umar Hayat
name: Madiha Khanam
name: Saeed, Haris
name: Owais, Mohammad
name: Mohd Khalid
name: M. Shahid
name: Musheer Ahmad
Publisher: name: Taylor & Francis
Year: 2020
Subjects: subject: Biochemistry
subject: Microbiology
subject: FOS: Biological sciences
subject: Pharmacology
subject: Biotechnology
subject: 59999 Environmental Sciences not elsewhere classified
subject: FOS: Earth and related environmental sciences
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: Immunology
subject: FOS: Clinical medicine
subject: Cancer
subject: 110309 Infectious Diseases
subject: FOS: Health sciences
subject: 60506 Virology

description: Currently, most pathogens influencing a number of epidemics outline a notable warning to human health. It has pushed researchers to design new antimicrobial drugs using transition metals that are studied in proceeding fewer years for their antimicrobial properties. Henceforth, in this work, two mononuclear complexes [Imz-H][Fe(pda)2].1.3H2O (1) and [Mn(Imz)6].2Cl-. 2H2O (2) [Imz = imidazole and H2pda = 2,6 pyridine dicarboxylic acid] are isolated and characterized systematically by various spectral and single-crystal XRD studies. The antimicrobial activity of the present hexadentate complexes of Fe(III) and Mn(II) against Gram-positive as well as Gram-negative bacteria is also assessed. Augmented activity against standard isolates of Staphylococcus aureus with a minimum inhibitory concentration (MIC) is observed. Similar activity was also observed towards Escherichia coli, Klebsiella pneumoniae and Listeria monocytogenes. 1 and 2 have excellent bactericidal activity, and no resistant mutant for S. aureus was seen. The compound also unveiled antibiofilm activity and was capable to disrupt significantly the pre-formed biofilms and this property was confirmed by XTT assay experiment. The MTT assay data indicate that 1 and 2 can be used as anticancer agents towards the RAW 64.7 (human macrophage/monocyte) cell line. Further, the molecular docking study reveals that the role imidazole is very important in the biological activity of these complexes. Moreover, our results suggest that 1 and 2 with its effective anti-microbial, anti-biofilm and cytotoxicity activity can be used to treat bacterial and fungal infections and could be appraised clinically for further applications.
Higher order peak algebras
Creators: name: Krob, Daniel
name: Thibon, Jean-Yves
Publisher: name: arXiv
Year: 2004
Subjects: subject: Combinatorics (math.CO)
subject: FOS: Mathematics

description: Using the theory of noncommutative symmetric functions, we introduce the higher order peak algebras, a sequence of graded Hopf algebras which contain the descent algebra and the usual peak algebra as initial cases (N = 1 and N = 2). We compute their Hilbert series, introduce and study several combinatorial bases, and establish various algebraic identities related to the multisection of formal power series with noncommutative coefficients.
description: 20 pages, AMS LaTex
Art or science? The challenges of publishing peer reviewed papers based on linked models
Creators: name: Burrell, Alison M.
name: Burrell, Alison M.
Publisher: name: Unknown
Year: 2008
Subjects: subject: Agricultural and Food Policy
subject: Teaching/Communication/Extension/Profession
subject: quantitative integrated assessment
subject: empirical models
subject: “black box”

description: The methodology used in a linked model system is generally too voluminous and of insufficient interest to form the basis of a peer-reviewed journal article. To be readily acceptable to an economics journal, the simulation results should provide economic insight and contribute to the economics literature.
Income and equity effects of crop productivity growth under alternative foreign trade regimes: a CGE analysis for the Philippines
Creators: name: Bautista, Romeo M.
name: Robinson, Sherman
name: Bautista, Romeo M.
name: Robinson, Sherman
Publisher: name: Unknown
Year: 1996
Subjects: subject: International Relations/Trade
subject: Productivity Analysis
subject: Philippines -- Foreign economic relations
subject: Philippines -- Economic conditions
subject: Crop yields
subject: Income -- Philippines

description: Does a restrictive foreign trade regime reduce the effectiveness of agricultural productivity growth in promoting overall income growth and equity? Based on counterfactual simulations using a multi-sector, computable general equilibrium (CGE) model of the Philippine economy, this paper investigates quantitatively the economywide income and equity effects of crop productivity growth during the "green revolution period" 1965-80 under alternative trade policies. The results indicate an inequitable distribution of household income gains under the historical, highly restrictive, trade regime. Trade liberalization is found to favor rural over urban households; small-farm households are the biggest gainers among the five household groups, while Metro Manila households are the biggest losers. Such positive redistributive impact is larger the greater is the extent of trade liberalization. The effect on gross domestic product is also significantly positive, so that the movement towards an open trade regime does not involve a tradeoff between the twin objectives of growth and equity.
description: "September 1996." Includes bibliographical references (p. 17-18). Published, in 1997, in Asian Journal of Agricultural Economics 2(2): 177-194.
Climate Change Mitigation Policy: The Effect of the New Zealand Emissions Trading Scheme on New Radiata Pine Forest Plantations in New Zealand
Creators: name: Tee, James
name: Scarpa, Riccardo
name: Marsh, Dan
name: Guthrie, Graeme
name: Tee, James
name: Scarpa, Riccardo
name: Marsh, Dan
name: Guthrie, Graeme
Publisher: name: Unknown
Year: 2011
Subjects: Environmental Economics and Policy

description: Climate change is one of the toughest challenges facing the world today. Putting a price on carbon emissions is an important step towards climate change mitigation. A cap and trade system is one of the ways to create a carbon price. The New Zealand Emissions Trading Scheme (NZETS) is the world’s first economy-wide cap and trade system that covers all sectors and all 6 greenhouse gases. Forestry is a major part of the NZETS, allowing foresters to earn carbon credits for new forests planted on and after 1st January 1990 (afforestation and reforestation). At the same time, the NZETS also makes foresters liable for harvesting new forests planted on and after 1st January 1990, and deforesting forests existing on and before 31st December 1989. In this paper, we perform an economic analysis of how a carbon price will likely affect the returns and forestry management behaviour in new forests in New Zealand. Previous works have used the NPV/LEV (fixed harvesting) analysis where the forest is assumed to be harvested (in future) at the estimated optimal rotation age regardless of timber prices at that time. Other works have employed the Real Options approaches (flexible harvesting) where sophisticated models such as Partial Differential Equations and simulations analyse the effects of bringing forward the harvest decision if timber prices are favourable, and deferring the harvest decision if timber prices are unfavourable. Often, these methods tend to have higher data requirements, employ different assumptions and are much more complex to estimate. Because of these differences, it may be difficult to compare the results of NPV/LEV analysis with Real Options. Our work here applies the binomial tree method, which is a relatively simple method that can generate both LEV (fixed harvesting) and Real Options (flexible harvesting) results on a common model with the same data requirements and assumptions. This allows for better comparability of forestry management behaviour and effects of carbon price. The forestry valuations are analysed under a stochastic timber price and a constant carbon price. This paper concludes with some implications on policy in New Zealand.
Induction of phase-slip lines in a thin, wide superconducting film by an rf electromagnetic field
Creators: name: Kuznetsov, V. I.
name: Tulin, V. A.
Publisher: name: arXiv
Year: 2004
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: The appearance of phase-slip lines, induced by an rf field, was observed experimentally in wide superconducting films in which the destruction of superconductivity by a dc current is associated with the formation of phase-slip lines. The characteristics of the separation of the film into superconducting and nonuniform, isothermal, nonequilibrium regions (phase-slip lines) under electromagnetic irradiation were studied.
description: 4 pages, 3 figures, RevTex4. Misprints of the original paper corrected. Numeric format(separators)in Figures changed
Is Choice Modelling Really Necessary? Public versus expert values for marine reserves in Western Australia
Creators: name: Rogers, Abbie A.
name: Rogers, Abbie A.
Publisher: name: Unknown
Year: 2011
Subjects: subject: Research Methods/ Statistical Methods
subject: Choice modelling
subject: valuation
subject: experts
subject: public
subject: marine parks

description: One of the motivations for choice modelling is to provide values that can be used to inform decisionmakers about the non-market costs and benefits of proposed projects or policies. However, the question must be asked as to whether decision-makers consider choice modelling to be a policy relevant tool. There may be more cost-effective and convenient means of providing comparable policy guidance than commissioning a choice modelling study. For example, advice on decision options may be sought from experts, such as scientists. However, expert advice may not accurately reflect the value judgements of the public. The aim of this study is to investigate whether public and expert preferences diverge, using the choice modelling technique. Two case studies are utilised – the Ningaloo Marine Park and the proposed Ngari Capes Marine Park in Western Australia. Evidence of both divergence and convergence between public and expert values is found in different instances, with public awareness factors playing a role in this divide. Where preference divergence appears likely, decision-makers should consider choice modelling as a useful tool to inform policy.
Autorrealización: Elaboración de la escala ADO-20 para su evaluación en docentes
Creators: name: Viloria, Manuel Salvador Machado
name: Nerwis Martínez
name: Villalobos, Luis
Publisher: name: figshare
Year: 2020
Subjects: subject: 170109 Personality, Abilities and Assessment
subject: FOS: Psychology

description: El objetivo fue en analizar las propiedades psicométricas de la escala AD0-20 elaborada para medir la autorrealización en docentes. Se elaboró ​​el instrumento con 30 ítems, necesidades en una dimensión y 8 indicadores: necesidades fisiológicas, necesidades de seguridad, necesidades de afiliación, necesidades de reconocimiento, necesidades cognitivas, necesidades estéticas, necesidades de autorrealización y necesidades de auto-trascendencia. Se realizó una prueba piloto a 124 sujetos, cuyos datos fueron validados por expertos aprobándolo, y luego fue estudiado con la prueba de Confiabilidad de Alfa de Cronbach establecido el cálculo de Rho de Spearman. La elaboración de la escala ADO-20 para su evaluación en docentes , permite explicar si la causa de la desmotivación laboral aparece de la no autorrealización en las diversas necesidades humanas.