cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Cost-effectiveness modelling of three different hysterosalpingography diagnostic strategies in addition to standard fertility management for couples with unexplained infertility in the United Kingdom
Creators: name: Pham, Clarabelle
name: Torre, Antoine
name: Mol, Ben
Publisher: name: Taylor & Francis
Year: 2021
Subjects: subject: Medicine
subject: Physiology
subject: FOS: Biological sciences
subject: Ecology
subject: Science Policy

description: Previous studies have demonstrated hysterosalpingography (HSG) in general, and specifically with an oil-soluble contrast medium, directly increases pregnancy rates. Decision modelling was performed to compare fertility management using three HSG diagnostic strategies: (i) water-soluble contrast medium (WSCM)-HSG; (ii) Lipiodol® Ultra Fluid (LUF)-HSG; and (iii) No HSG, for women aged ≤39 years with unexplained infertility. Four reimbursement scenarios were modelled to reflect the various funding arrangements across the regions of the United Kingdom. Compared with WSCM-HSG, the live birth rates after 24 months increased by 3.4% with LUF-HSG and decreased by 2.7% with no HSG. From a patient perspective, fertility management with LUF-HSG is the most cost-effective strategy with cost-savings ranging from £299 to £857 per patient depending on the funding arrangement for IVF. From an NHS perspective, fertility management with LUF-HSG is cost-effective when 2 or more IVF cycles are NHS-funded. If none of the IVF cycles are NHS-funded, fertility management with LUF-HSG can be considered cost-effective if society is willing to pay £8,353 for an additional live birth. The findings from this analysis suggest that fertility management with WSCM-HSG is cost-effective compared to no HSG and LUF-HSG is the most cost-effective with increased live birth rates after 24 months.
Time-Resolved HST Spectroscopy of Four Eclipsing Magnetic Cataclysmic Variables
Creators: name: Schmidt, Gary D.
name: Stockman, H. S.
Publisher: name: arXiv
Year: 2000
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: Time-resolved HST UV eclipse spectrophotometry is presented for the magnetic CVs V1309 Ori, MN Hya, V2301 Oph, and V1432 Aql. Separation of the light curves into wavebands allows the multiple emission components to be distinguished. Photospheric hot spots are detected in V1309 Ori and V2301 Oph. The emission- line spectra of V1309 Ori and MN Hya are unusual, with the strength of N V 1240 and N IV 1718 suggesting an overabundance of nitrogen. Three epochs of observation of the asynchronous V1432 Aql cover ~1/3 of a 50-day lap cycle between the white dwarf spin and binary orbit. The light curves vary from epoch to epoch and as a function of waveband. The dereddened UV spectrum is extremely bright and the spectral energy distribution coupled with the duration of eclipse ingress indicate that the dominant source of energy is a hot (T~35,000K) white dwarf. Undiminished line emission through eclipse indicates that the eclipse is caused by the accretion stream, not the secondary star. The hot white dwarf, combined with its current asynchronous nature and rapid timescale for relocking, suggests that V1432 Aql underwent a nova eruption in the past 75-150 yr. The reversed sense of asynchronism, with the primary star currently spinning up toward synchronism, is not necessarily at odds with this scenario, if the rotation of the magnetic white dwarf can couple to the ejecta during the wind phase of the eruption.
description: To appear in ApJ Part 1; 25 pages, 12 figures
Additional file 1: of Anti-bacterial antibody and T cell responses in bronchiectasis are differentially associated with lung colonization and disease
Creators: name: Fathia Jaat
name: Sajidah Hasan
name: Perry, Audrey
name: Cookson, Sharon
name: Murali, Santosh
name: Perry, John
name: Lanyon, Clare
name: Soyza, Anthony De
name: Todryk, Stephen
Publisher: name: figshare
Year: 2018
Subjects: subject: Medicine
subject: Microbiology
subject: FOS: Biological sciences
subject: Genetics
subject: Physiology
subject: Biotechnology
subject: Ecology
subject: Immunology
subject: FOS: Clinical medicine
subject: Cancer
subject: 110309 Infectious Diseases
subject: FOS: Health sciences

description: Supplement: The significance of anti-bacterial immune responses in Bronchiectasis and Chronic Obstructive Pulmonary Disease. (DOCX 235 kb)
Vortex structure in long Josephson junction with two inhomogeneities
Creators: name: Andreeva, O. Yu.
name: Boyadjiev, T. L.
name: Shukrinov, Yu. M.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: A report of numerical experiment results on long Josephson junction with one and two rectangular inhomogeneities in the barrier layer is presented. In case of one inhomogeneity we demonstrate the existence of the asymmetric fluxon states. The disappearance of mixed fluxon-antifluxon states when the position of inhomogeneity shifted to the end of the junction is shown. In case with two inhomogeneities the change of the amplitude of Josephson current through the inhomogeneity at the end of junction makes strong effect on the stability of the fluxon states and smoothes the maximums on the dependence ``critical current - magnetic field''.
description: Presented for M2S, Dresden, July 9-14, 2006
Optical properties and exciton transfer between N-heterocyclic carbene iridium (III) complexes for blue light-emitting diode applications from first principles
Creators: name: Lebedeva, Irina V.
name: Jornet-Somoza, Joaquim
Publisher: name: arXiv
Year: 2023
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: Chemical Physics (physics.chem-ph)
subject: Computational Physics (physics.comp-ph)
subject: FOS: Physical sciences

description: N-heterocyclic carbene (NHC) iridium (III) complexes are considered as promising candidates for blue emitters in organic light-emitting diodes. They can play the roles of the emitter as well as of electron and hole transporters in the same emission layer. We investigate optical transitions in such complexes with account of geometry and electronic structure changes upon excitation or charging and exciton transfer between the complexes from first principles. It is shown that excitation of NHC iridium complexes is accompanied by a large reorganization energy $\sim$0.7 eV and a significant loss in the oscillator strength, which should lead to low exciton diffusion. Calculations with account of spin-orbit coupling reveal a small singlet-triplet splitting $\sim$0.1 eV, whereas the oscillator strength for triplet excitations is found to be an order of magnitude smaller than for the singlet ones. The contributions of the Förster and Dexter mechanisms are analyzed via the explicit integration of transition densities. It is shown that for typical distances between emitter complexes in the emission layer, the contribution of the Dexter mechanism should be negligible compared to the Förster mechanism. On the other hand, the ideal dipole approximation, although gives the correct order of the exciton coupling, fails to reproduce the result taking into account spatial distribution of the transition density. For charged NHC complexes, we find a number of optical transitions close to the emission peak of the blue emitter with high exciton transfer rates that can be responsible for exciton-polaron quenching. The nature of these transitions is analyzed.
description: 20 pages, 7 figures
RRR: Reliability, Replicability, Reproducibility for Climate Models
Creators: name: Heerdegen, Aidan
Publisher: name: Zenodo
Year: 2023

description: Climate models are an imperfect translation of extremely complex scientific understanding into computer code. Imperfect because many assumptions are made to make the problems tractable. This is made more complex because a climate model is a number of separate models of different realms of the earth system, which run independently while exchanging information at their boundaries.

In addition these models are run at large high performance computing (HPC) centres, on exotic hardware utilising specially tuned software, which adds another layer of complexity.

As if that wasn't bad enough, there is also the software engineering complexity involved with building multiple separate models and their multiple complex dependencies.

What if rather than being an additional layer of complexity that made it difficult to reliably build models, replicate results and reproduce science, software engineering could make this easier rather than harder? Removing complexity instead of increasing it?

At ACCESS-NRI we use spack, a build-from-source package manager that targets HPC, to make building climate models easier, reliable and reproducible.

We perform continuous integration testing of build reproducibility, model replicability, and scientific reproducibility. This eliminates a source of complexity and uncertainty: the model is guaranteed to produce the same results from the same code, or modified code, when those changes should not alter answers. Scientists can be confident that any variation in their climate model outputs is due to factors under their control, rather than changes in software dependencies, or the tools they use to build their model.
Photon distribution for one mode mixed light with generic gaussian Wigner function
Creators: name: Dodonov, V. V.
name: Man'ko, O. V.
name: Man'ko, V. I.
Publisher: name: arXiv
Year: 1993
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: For one-mode light described by the Wigner function of generic Gaussian form the photon distribution function is obtained explicitly and expressed in terms of Hermite polynomials of two variables.The mean values and dispersions of photon numbers are obtained for this generic %mixed state.Generating function for photon distribution is discussed.Known partial cases of thermal state,correlated state,squeezed state and coherent state are considered.The connection of Schrodinger uncertainty relation for quadratures with photon distribution is demonstrated explicitly.
description: Latex, INFN-Na-IV-93/35,DSF-T-93/35
Non-adiabatic pulsations in ESTER models
Creators: name: Reese, Daniel Roy
name: Dupret, Marc-Antoine
name: Rieutord, Michel
Publisher: name: arXiv
Year: 2017
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: One of the greatest challenges in interpreting the pulsations of rapidly rotating stars is mode identification, i.e. correctly matching theoretical modes to observed pulsation frequencies. Indeed, the latest observations as well as current theoretical results show the complexity of pulsation spectra in such stars, and the lack of easily recognisable patterns. In the present contribution, the latest results on non-adiabatic effects in such pulsations are described, and we show how these come into play when identifying modes. These calculations fully take into account the effects of rapid rotation, including centrifugal distortion, and are based on models from the ESTER project, currently the only rapidly rotating models in which the energy conservation equation is satisfied, a prerequisite for calculating non-adiabatic effects. Non-adiabatic effects determine which modes are excited and play a key role in the near-surface pulsation-induced temperature variations which intervene in multi-colour amplitude ratios and phase differences, as well as line profile variations.
description: Proceedings for the Joint TASC2 & KASC9 Workshop, Terceira, Azores, 2016
Advances in s-process models
Creators: name: Lugaro, Maria
name: Herwig, Falk
Publisher: name: arXiv
Year: 2000
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: Within the framework of the current models for the slow neutron capture (s) process in Asymptotic Giant Branch (AGB) stars we explore the uncertainties introduced by the assumptions made on stellar modeling. On the basis of star models constructed with three different evolutionary codes we generate detailed neutron-capture nucleosynthesis post-processing models. The main difference among the codes is that one of them includes an overshooting mechanism. As a result, the neutron fluxes are stronger both during the interpulse periods and within thermal pulses. The efficiency of the C13 source is also studied and we find that a linear relationship exists between the initial C12 in the intershell and the maximum number of neutrons produced.
description: 8 pages, 4 figures, submitted for "Nuclei in the Cosmos 2000" proceedings
Driving community engagement with National Research Infrastructures
Creators: name: Bateman, Natalia
Publisher: name: Zenodo
Year: 2023
Subjects: engagement
communication

description: Research infrastructures support researchers, communities, decision makers and other users by providing access to tools, data, software, technology, facilities and technical expertise.

In Australia, there are more than 25 national research infrastructure projects that range across astronomy, biodiversity, geoscience, marine science, climate science, health, data and digital facilities and more.

These infrastructures are enabled by the Australian Government through the National Collaborative Research Infrastructure Strategy (NCRIS) and other funding schemes.

Engagement and training are at the heart of research infrastructures, as they are essential activities to connect users and technical experts and improve the visibility of the services they offer to the wider Australasian research community.

This Birds of a Feather (BoF) style session aims to bring together people from across e-research infrastructures to discuss community engagement best practices, unique challenges and opportunities in communication, training and engagement.

Depending on 'upvoting' by session attendees, topics for discussion may include:?

-What are the roles engagement and training play in building the communities of users and developers in each of our infrastructures and encourage community participation, or two-way exchange of feedback?

-What has made for successful and not-so-successful engagement and training approaches for research infrastructures?

-What collaboration opportunities exist among organisations to maximise engagement and training efforts?

-How can we be innovative and modernise our engagement and training activities?

As a key outcome of this session, we  will establish a support network in the form of a bi-monthly meeting to move forward what was discussed.
A Comptonized Fireball Bubble Fits the Second Extragalactic Magnetar Giant Flare GRB 231115A
Creators: name: Yin, Yi-Han Iris
name: Zhang, Zhao Joseph
name: Yang, Jun
name: Chen, Run-Chao
name: Rehman, Umer
name: Varun
name: Zhang, Bin-Bin
Publisher: name: arXiv
Year: 2023
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: Magnetar giant flares (MGFs), originating from noncatastrophic magnetars, share noteworthy similarities with some short gamma-ray bursts (GRBs). However, understanding their detailed origin and radiation mechanisms remains challenging due to limited observations. The discovery of MGF GRB 231115A, the second extragalactic MGF located in the Cigar galaxy at a luminosity distance of $\sim 3.5$ Mpc, offers yet another significant opportunity for gaining insights into the aforementioned topics. This Letter explores its temporal properties and conducts a comprehensive analysis of both the time-integrated and time-resolved spectra through empirical and physical model fitting. Our results reveal certain properties of GRB 231115A that bear resemblances to GRB 200415A. We employ a Comptonized fireball bubble model, in which the Compton cloud, formed by the magnetar wind with high density $e^{\pm}$, undergoes Compton scattering and inverse Compton scattering, resulting in reshaped thermal spectra from the expanding fireball at the photosphere radius. This leads to dynamic shifts in dominant emission features over time. Our model successfully fits the observed data, providing a constrained physical picture, such as a trapped fireball with a radius of $\sim 1.95 \times 10^{5}$ cm and a high local magnetic field of $2.5\times 10^{16}$ G. The derived peak energy and isotropic energy of the event further confirm the burst's MGF origin and its contribution to the MGF-GRB sample. We also discuss prospects for further gravitational wave detection associated with MGFs, given their high-event-rate density ($\sim 8\times 10^5\ \rm Gpc^{-3}\ yr^{-1}$) and ultrahigh local magnetic field.
description: ApJL in press, author version, 10 pages, 5 figures, 3 tables
Fertilizer Operations of Regional and Interregional Cooperatives, 1984
Creators: name: Dunn, John R.
name: Vogelsang, Donald L.
name: Dunn, John R.
name: Vogelsang, Donald L.
Publisher: name: Unknown
Year: 1987
Subjects: subject: Crop Production/Industries
subject: Industrial Organization
subject: Marketing
subject: FOS: Economics and business
subject: Productivity Analysis
subject: Cooperatives
subject: fertilizer
subject: inputs
subject: regionals
subject: interregionals

description: This study documents the fertilizer operations of regional and interregional cooperatives in the United States. The findings provide 1984 data on sales, market share, production, capacity, inputs, and markets for the largest regional and interregional cooperatives involved in the fertilizer industry. Twenty-four cooperatives provided data for this report, based on their fiscal years ending during calendar year 1984. Participating cooperatives, including two interregionals and twenty-two regionals, represent the vast majority of fertilizer products flowing through the cooperative system at the manufacturing and wholesaling level. Data from earlier studies and secondary data from various public sources form the basis for analysis of trends between 1970 and 1984.
Manifestation of many-body interactions in the integer quantum Hall effect regime
Creators: name: Oswald, Josef
name: Römer, Rudolf A
Publisher: name: arXiv
Year: 2017
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We use the self-consistent Hartree-Fock approximation for numerically addressing the integer quantum Hall (IQH) regime in terms of many-body physics at higher Landau levels (LL). The results exhibit a strong tendency to avoid the simultaneous existence of partly filled spin-up and spin-down LLs. Partly filled LLs appear as a mixture of coexisting regions of full and empty LLs. We obtain edge stripes with approximately constant filling factor $ν$ close to half-odd filling at the boundaries between the regions of full and empty LLs, which we explain in terms of the $g$-factor enhancement as a function of a locally varying $ν$ across the compressible stripes.The many-particle interactions follow a behaviour as it would result from applying Hund's rule for the occupation of the spin split LLs. The screening of the disorder and edge potential appears significantly reduced as compared to screening based on a Thomas-Fermi approximation. For addressing carrier transport, we use a non-equilibrium network model (NNM) that handles the lateral distribution of the experimentally injected non-equilibrium chemical potentials $μ$.
description: 10 pages with 8 figures, plus 4 additional pages of supplementary material and 5 figures
Common features of vortex structure in long exponentially shaped Josephson junctions and Josephson junctions with inhomogeneities
Creators: name: Boyadjiev, T. L.
name: Semerdjieva, E. G.
name: Shukrinov, Yu. M.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: We study vortex structure in three different models of long Josephson junctions: exponentially shaped Josephson junction and Josephson junctions with resistor and shunt inhomogeneities in barrier layer. Numerical calculations of the possible magnetic flux distributions and corresponding bifurcation curves have done. For these three models the critical curves ``critical current-magnetic field'' are constructed. We develop an idea of the equivalence of exponentially shaped Josephson junction and rectangular junction with distributed inhomogeneity and demonstrate that at some parameters of shunt and resistor inhomogeneities at the ends of the junction the corresponding critical curves are very close to the exponentially shaped one.
description: Presented for M2S, Dresden, July 9-14, 2006
Periods for Calabi--Yau and Landau--Ginzburg Vacua
Creators: name: Berglund, Per
name: Candelas, Philip
name: de la Ossa, Xenia
name: Font, Anamaria
name: Hubsch, Tristan
name: Jancic, Dubravka
name: Quevedo, Fernando
Publisher: name: arXiv
Year: 1993
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: The complete structure of the moduli space of \cys\ and the associated Landau-Ginzburg theories, and hence also of the corresponding low-energy effective theory that results from (2,2) superstring compactification, may be determined in terms of certain holomorphic functions called periods. These periods are shown to be readily calculable for a great many such models. We illustrate this by computing the periods explicitly for a number of classes of \cys. We also point out that it is possible to read off from the periods certain important information relating to the mirror manifolds.
description: 54pp. Use harvmac; WARNING: option l does not work. (Replaces unTeXable version.)
Additional file 1: of Infectious diseases during the European Union training mission Mali (EUTM MLI) â a four-year experience
Creators: name: Frickmann, Hagen
name: Hagen, Ralf
name: Geiselbrechtinger, Florian
name: Nagpal Hoysal
Publisher: name: figshare
Year: 2018
Subjects: subject: Medicine
subject: Biotechnology
subject: Sociology
subject: FOS: Sociology
subject: Immunology
subject: FOS: Clinical medicine
subject: 69999 Biological Sciences not elsewhere classified
subject: FOS: Biological sciences
subject: Cancer
subject: Science Policy
subject: 110309 Infectious Diseases
subject: FOS: Health sciences

description: Figure S1. Most commonly reported reasons for new medical consultations during the study interval for non-EUTM missions. Figure S2. Variation in the crude rate of reported disease categories year by year for non-EUTM missions. Figure S3. Variation in reported infectious disease events by category and yearÂ for non-EUTM missions. Figure S4. Variation in reported specific infectious diseases events by calendar week for non-EUTM missions. Figure S5. Reports of confirmed diseases in EUTM MLI during the study period. (DOC 2979 kb)
Impact of Protostellar Outflows on Turbulence and Star Formation Efficiency in Magnetized Dense Cores
Creators: name: Offner, Stella S. R.
name: Chaban, Jonah
Publisher: name: arXiv
Year: 2017
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: The star-forming efficiency of dense gas is thought to be set within cores by outflow and radiative feedback. We use magneto-hydrodynamic simulations to investigate the relation between protostellar outflow evolution, turbulence and star formation efficiency. We model the collapse and evolution of isolated dense cores for $\gtrsim$ 0.5 Myr including the effects of turbulence, radiation transfer, and both radiation and outflow feedback from forming protostars. We show that outflows drive and maintain turbulence in the core environment even with strong initial fields. The star-formation efficiency decreases with increasing field strength, and the final efficiencies are $15-40$\%. The Stage 0 lifetime, during which the protostellar mass is less than the dense envelope, increases proportionally with the initial magnetic field strength and ranges from $\sim 0.1-0.4$ Myr. The average accretion rate is well-represented by a tapered turbulent core model, which is a function of the final protostellar mass and is independent of the magnetic field strength. By tagging material launched in the outflow, we demonstrate that the outflow entrains about $3$ times the actual launched gas mass, a ratio that remains roughly constant in time regardless of the initial magnetic field strength. However, turbulent driving increases for stronger fields since momentum is more efficiently imparted to non-outflow material. The protostellar outflow momentum is highest during the first 0.1 Myr and declines thereafter by a factor of $\gtrsim 10$ as the accretion rate diminishes.
description: 21 pages, 17 figures, accepted to ApJ; updated citations, figure legends to match final submission
Synthetic Information towards Maximum Posterior Ratio for deep learning on Imbalanced Data
Creators: name: Nguyen, Hung
name: Chang, Morris
Publisher: name: arXiv
Year: 2024
Subjects: subject: Machine Learning (cs.LG)
subject: Artificial Intelligence (cs.AI)
subject: FOS: Computer and information sciences

description: This study examines the impact of class-imbalanced data on deep learning models and proposes a technique for data balancing by generating synthetic data for the minority class. Unlike random-based oversampling, our method prioritizes balancing the informative regions by identifying high entropy samples. Generating well-placed synthetic data can enhance machine learning algorithms accuracy and efficiency, whereas poorly-placed ones may lead to higher misclassification rates. We introduce an algorithm that maximizes the probability of generating a synthetic sample in the correct region of its class by optimizing the class posterior ratio. Additionally, to maintain data topology, synthetic data are generated within each minority sample's neighborhood. Our experimental results on forty-one datasets demonstrate the superior performance of our technique in enhancing deep-learning models.
description: Accepted to IEEE Transaction on Artificial Intelligence
Solving Poisson's Equation on the Microsoft HoloLens
Creators: name: Logg, Anders
name: Lundholm, Carl
name: Nordaas, Magne
Publisher: name: arXiv
Year: 2017
Subjects: subject: Graphics (cs.GR)
subject: Mathematical Software (cs.MS)
subject: FOS: Computer and information sciences

description: We present a mixed reality application (HoloFEM) for the Microsoft HoloLens. The application lets a user define and solve a physical problem governed by Poisson's equation with the surrounding real world geometry as input data. Holograms are used to visualise both the problem and the solution. The finite element method is used to solve Poisson's equation. Solving and visualising partial differential equations in mixed reality could have potential usage in areas such as building planning and safety engineering.
description: 2 pages, 9 figures
Asymmetric matrices in an analysis of financial correlations
Creators: name: Kwapien, J.
name: Drozdz, S.
name: Gorski, A. Z.
name: Oswiecimka, P.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Physics and Society (physics.soc-ph)
subject: Statistical Finance (q-fin.ST)
subject: FOS: Physical sciences
subject: FOS: Economics and business

description: Financial markets are highly correlated systems that reveal both the inter-market dependencies and the correlations among their different components. Standard analyzing techniques include correlation coefficients for pairs of signals and correlation matrices for rich multivariate data. In the latter case one constructs a real symmetric matrix with real non-negative eigenvalues describing the correlation structure of the data. However, if one performs a correlation-function-like analysis of multivariate data, when a stress is put on investigation of delayed dependencies among different types of signals, one can calculate an asymmetric correlation matrix with complex eigenspectrum. From the Random Matrix Theory point of view this kind of matrices is closely related to Ginibre Orthogonal Ensemble (GinOE). We present an example of practical application of such matrices in correlation analyses of empirical data. By introducing the time lag, we are able to identify temporal structure of the inter-market correlations. Our results show that the American and German stock markets evolve almost simultaneously without a significant time lag so that it is hard to find imprints of information transfer between these markets. There is only an extremely subtle indication that the German market advances the American one by a few seconds.
description: presented at 2nd Polish Symposium on Econo- and Sociophysics, Krakow, Poland, 21-22 April 2006
Liouvillian exceptional points of an open driven two-level system
Creators: name: Seshadri, Nikhil
name: Li, Anqi
name: Galperin, Michael
Publisher: name: arXiv
Year: 2024
Subjects: subject: Quantum Physics (quant-ph)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Chemical Physics (physics.chem-ph)
subject: FOS: Physical sciences

description: We study the applicability of the Liouvillian exceptional points (LEPs) approach to nanoscale open quantum systems. A generic model of the driven two-level system in a thermal environment is analyzed within the nonequilibrium Green's function (NEGF) and Bloch quantum master equation (QME) formulations. We derive the latter starting from the exact NEGF Dyson equations and highlight the qualitative limitations of the LEP treatment by examining the approximations employed in its derivation. We find that non-Markov character of evolution in open quantum systems does not allow for the introduction of the concept of exceptional points for a description of their dynamics. Theoretical analysis is illustrated with numerical simulations.
description: 11 pages, 4 figures
Additional file 2: of Associations between birth registration and early child growth and development: evidence from 31 low- and middle-income countries
Creators: name: Jeong, Joshua
name: Bhatia, Amiya
name: GĂźnther Fink
Publisher: name: figshare
Year: 2018
Subjects: subject: Medicine
subject: Genetics
subject: FOS: Biological sciences
subject: Biotechnology
subject: 59999 Environmental Sciences not elsewhere classified
subject: FOS: Earth and related environmental sciences
subject: Sociology
subject: FOS: Sociology
subject: 19999 Mathematical Sciences not elsewhere classified
subject: FOS: Mathematics
subject: Developmental Biology
subject: Cancer
subject: 110309 Infectious Diseases
subject: FOS: Health sciences
subject: Computational Biology

description: Figure of pooled and country-specific associations between no birth certificate and HAZ among children aged 36â 59Â months based on meta-regression model. (DOCX 718 kb)
Finite-dimensional Gaussian approximation with linear inequality constraints
Creators: name: López-Lopera, Andrés F.
name: Bachoc, François
name: Durrande, Nicolas
name: Roustant, Olivier
Publisher: name: arXiv
Year: 2017
Subjects: subject: Machine Learning (stat.ML)
subject: Machine Learning (cs.LG)
subject: FOS: Computer and information sciences

description: Introducing inequality constraints in Gaussian process (GP) models can lead to more realistic uncertainties in learning a great variety of real-world problems. We consider the finite-dimensional Gaussian approach from Maatouk and Bay (2017) which can satisfy inequality conditions everywhere (either boundedness, monotonicity or convexity). Our contributions are threefold. First, we extend their approach in order to deal with general sets of linear inequalities. Second, we explore several Markov Chain Monte Carlo (MCMC) techniques to approximate the posterior distribution. Third, we investigate theoretical and numerical properties of the constrained likelihood for covariance parameter estimation. According to experiments on both artificial and real data, our full framework together with a Hamiltonian Monte Carlo-based sampler provides efficient results on both data fitting and uncertainty quantification.
SiO Emission in the Multi-Lobe Outflow associated with IRAS 16293-2422
Creators: name: Hirano, Naomi
name: Mikami, Hitomi
name: Umemoto, Tomofumi
name: Yamamoto, Satoshi
name: Taniguchi, Yoshiaki
Publisher: name: arXiv
Year: 2000
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We have mapped the thermal emission line of SiO (v = 0; J = 2-1) associated with the quadrupolar molecular outflow driven by the very cold far-infrared source IRAS 16293-2422. The SiO emission is significantly enhanced in the northeastern red lobe and at the position ~50" east of the IRAS source. Strong SiO emission observed at ~50" east of the IRAS source presents evidence for a dynamical interaction between a part of the eastern blue lobe and the dense ambient gas condensation, however, such an interaction is unlikely to be responsible for producing the quadrupolar morphology. The SiO emission in the northeastern red lobe shows the spatial and velocity structure similar to those of the CO outflow, suggesting that the SiO emission comes from the molecular outflow in the northeastern red lobe itself. The observed velocity structure is reproduced by a simple spatio-kinematic model of bow shock with a shock velocity of 19-24 km/s inclined by 30-45 deg from the plane of the sky. This implies that the northeastern red lobe is independent of the eastern blue lobe and that the quadrupolar structure is due to two separate bipolar outflows. The SiO emission observed in the western red lobe has a broad pedestal shape with low intensity. Unlike the SiO emission in the northeastern red lobe, the spatial extent of the SiO emission in the western red lobe is restricted to its central region. The spatial and velocity structures and the line profiles suggest that three different types of the SiO emission are observed in this outflow; the SiO emission arises from the interface between the outflowing gas and the dense ambient gas clump, the SiO emission coming from the outflow lobe itself, and the broad SiO emission with low intensity observed at the central region of the outflow lobe.
description: 14 pages, 6 figures (figures 1 and 4 are color), gzipped tar file, To appear in the ApJ
The fast spin of near-Earth asteroid (455213) 2001 OE84, revisited after 14 years: constraints on internal structure
Creators: name: Polishook, David
name: Moskovitz, Nicholas
name: Thirouin, Audrey
name: Bosh, Amanda
name: Levine, Stephen
name: Zuluaga, Carlos
name: Tegler, Stephen
name: Aharonson, Oded
Publisher: name: arXiv
Year: 2017
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: FOS: Physical sciences

description: At a mean diameter of ~650 m, the near-Earth asteroid (455213) 2001 OE84 (OE84 for short) has a rapid rotation period of 0.486542+-0.000002 hours, which is uncommon for asteroids larger than ~200 m. We revisited OE84 14 years after it was first, and last, observed by Pravec et al. (2002) in order to measure again its spin rate and to search for changes. We have confirmed the rapid rotation and, by fitting the photometric data from 2001 and 2016 using the lightcurve inversion technique, we determined a retrograde sense of rotation, with the spin axis close to the ecliptic south pole; an oblate shape model of a/b=1.32+-0.04 and b/c=1.8+-0.2; and no change in spin rate between 2001 and 2016. Using these parameters we constrained the body's internal strength, and found that current estimations of asteroid cohesion (up to ~80 Pa) are insufficient to maintain an intact rubble pile at the measured spin rate of OE84. Therefore, we argue that a monolithic asteroid, that can rotate at the rate of OE84 without shedding mass and without slowing down its spin rate, is the most plausible for OE84, and we give constraints on its age, since the time it was liberated from its parent body, between 2-10 million years.
description: 11 pages, 5 figures, 2 tables. Accepted for publication in Icarus
Quantitative rockfall risk assessment with and without protective measures
Creators: name: Marchelli, Maddalena
Publisher: name: Zenodo
Year: 2025
Subjects: subject: Risk assessment
subject: Natural hazard
subject: Risk management
subject: Risk reduction
subject: Design (project)
subject: Protective measure
subject: Rockfall

description: Quantitative rockfall risk assessment is a challenging yet essential step in risk management, crucial for implementing effective mitigation strategies and allocating available economic resources. Key aspects include understanding the temporal and spatial probabilities of occurrence, the size of the rockfall blocks, their potential trajectories and energies, and the fragmentation processes. Similarly, quantifying damages requires knowledge of the vulnerability and value of the elements at risk under different scenarios.

To mitigate risk, protective measures such as rockfall barriers or embankments are often installed. Understanding the failure probability of these structures, both at the time of installation and throughout their service life, is fundamental for quantifying residual risk and developing effective inspection plans, remediation interventions, or replacements.

This talk presents a comprehensive framework for computing risk with and without protective measures, along with strategies to address potential data gaps. A method tailored to compute the risk on mountain infrastructure is proposed. Finally, innovative design and maintenance procedures for mitigation works are presented.
Form factors of $B_{(s)}$ to light scalar mesons with the $B$-meson LCSR
Creators: name: Khosravi, R.
Publisher: name: arXiv
Year: 2024
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: In this work, the transition form factors of the semileptonic decays of $B_{(s)}$ to the light scalar mesons with masses close to $1.5~\rm{GeV}$ such as $K_0^*(1430), a_0(1450)$, and $f_0(1500)$ are calculated in the framework of the light-cone sum rules (LCSR). For this purpose, the two- and three-particle $B$-meson distribution amplitudes (DA's) are used. Note that it is possible to use the $B$-meson DA's for $B_{s}$-meson in the $\rm SU(3)_F$ symmetry limit. The transition form factors are obtained in terms of the two-particle DA's up to twist-five accuracy, and the three-particle up to twist-six level. We apply two classes of the phenomenological models for the DA's of $B$-meson. The longitudinal lepton polarization asymmetries and branching fractions for the semileptonic decays of $B_{(s)}$ to the light scalar mesons are estimated with the help of these form factors.
description: 20 pages, 12 figures
title: ADCO, Cartulaire général de Cîteaux, dit de Jean de Cirey, (XVe siècle), tome VI, Cart. 190 (11 H 75), 316 folios, f. 0232v
Creators: name: de la Côte d'Or, Archives départementales
name: Archives Départementales De La Côte-D'Or
name: Petot, Frédérique
name: Projet CBMA
name: CG21/F.PETOT/2012
Publisher: name: NAKALA - https://nakala.fr (Huma-Num - CNRS)
publisherIdentifier: https://ror.org/04ces3204
publisherIdentifierScheme: ROR
Year: 2020
Subjects: subject: Corpus Burgundiae Medii Aevi
subject: Chartes de la Bourgogne du Moyen Âge
subject: cartulaire
subject: LaMOP
subject: Laboratoire de Médiévistique Occidentale de Paris

description: Cartulaire général de Cîteaux, dit de Jean de Cirey, (XVe siècle), tome VI, Archives départementales de la Côte-d'Or, Cart. 190 (11 H 75), 316 folios, f. 0232v, Numérisation en mode image.
description: Relation: http://www.cbma-project.eu/
description: Bibliographic citation: Cartulaire général de Cîteaux, dit de Jean de Cirey, (XVe siècle), tome VI, Archives départementales de la Côte-d'Or, Cart. 190 (11 H 75), 316 folios, f. 0232v, in Projet CBMA - Corpus Burgundiae Medii Aevi [Ressource en ligne], https:// manuscrits.cbma-project.eu/
description: Provenance: https://www.geonames.org/3024876
description: Provenance: http://www.idref.fr/030974844/id
description: Provenance: https://catalogue.bnf.fr/ark:/12148/cb12228351v
description: Provenance: abbaye de Cîteaux
description: Provenance: http://www.wikidata.org/entity/Q843261
Cross-coupling effects in circuit-QED stimulated Raman adiabatic passage
Creators: name: Vepsäläinen, A.
name: Paraoanu, G. S.
Publisher: name: arXiv
Year: 2017
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Stimulated Raman adiabatic passage is a quantum protocol that can be used for robust state preparation in a three-level system. It has been commonly employed in quantum optics, but recently this technique has drawn attention also in circuit quantum electrodynamics. The protocol relies on two slowly varying drive pulses that couple the initial and the target state via an intermediate state, which remains unpopulated. Here we study the detrimental effect of the parasitic couplings of the drives into transitions other than those required by the protocol. The effect is most prominent in systems with almost harmonic energy level structure, such as the transmon. We show that under these conditions in the presence of decoherence there exists an optimal STIRAP amplitude for population transfer.
description: Will be published in proceedings for 28th International Conference for Low Temperature Physics
A solver for subsonic flow around airfoils based on physics-informed neural networks and mesh transformation
Creators: name: Cao, Wenbo
name: Song, Jiahao
name: Zhang, Weiwei
Publisher: name: arXiv
Year: 2024
Subjects: subject: Fluid Dynamics (physics.flu-dyn)
subject: FOS: Physical sciences

description: Physics-informed neural networks (PINNs) have recently become a new popular method for solving forward and inverse problems governed by partial differential equations (PDEs). However, in the flow around airfoils, the fluid is greatly accelerated near the leading edge, resulting in a local sharper transition, which is difficult to capture by PINNs. Therefore, PINNs are still rarely used to solve the flow around airfoils. In this study, we combine physical-informed neural networks with mesh transformation, using neural network to learn the flow in the uniform computational space instead of physical space. Mesh transformation avoids the network from capturing the local sharper transition and learning flow with internal boundary (wall boundary). We successfully solve inviscid flow and provide an open-source subsonic flow solver for arbitrary airfoils. Our results show that the solver exhibits higher-order attributes, achieving nearly an order of magnitude error reduction over second-order finite volume methods (FVM) on very sparse meshes. Limited by the learning ability and optimization difficulties of neural network, the accuracy of this solver will not improve significantly with mesh refinement. Nevertheless, it achieves comparable accuracy and efficiency to second-order FVM on fine meshes. Finally, we highlight the significant advantage of the solver in solving parametric problems, as it can efficiently obtain solutions in the continuous parameter space about the angle of attack.
description: arXiv admin note: text overlap with arXiv:2401.07203
New classification method for Equivalence Classes on $S^1/Z_2$ and $T^2/Z_3$ Orbifolds
Creators: name: Takeuchi, Kota
name: Inagaki, Tomohiro
Publisher: name: arXiv
Year: 2024
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: In five- and six-dimensional $U(N)$ and $SU(N)$ gauge theories compactified on $S^1/Z_2$ and $T^2/Z_3$ orbifolds, we propose a new method to classify the equivalence classes (ECs) of boundary conditions (BCs) wihtout depending on the structure of gauge transformations. Some of the BCs are connected through gauge transformations and constitute ECs, each of which contains physically equivalent BCs. Previous methods for classifying ECs have been used specific gauge transformations. In this paper, we show that a geometric property of orbifolds significantly narrows down the possibilities of connecting BCs and completes the classification of ECs.
description: 22 pages, 2 figures
Transient and stationary behavior of the Olami-Feder-Christensen earthquake model
Creators: name: Wissel, Felix
name: Drossel, Barbara
Publisher: name: arXiv
Year: 2006
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: Using long-term computer simulations and mean-field like arguments, we investigate the transient time and the properties of the stationary state of the Olami-Feder-Christensen earthquake model as function of the coupling parameter $α$ and the system size $N$. The most important findings are that the transient time diverges nonanalytically when $α$ approaches zero, and that the avalanche-size distribution will not approach a power law with increasing system size.
description: 10 pages, 8 figures
An ultraviolet spectral study of fullerene-rich planetary nebulae
Creators: name: Gómez-Muñoz, M. A.
name: García-Hernández, D. A.
name: Manchado, A.
name: Barzaga, R.
name: Huertas-Roldán, T.
Publisher: name: arXiv
Year: 2024
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: Several planetary nebulae (PNe) have been found to contain both polycyclic aromatic hydrocarbon (PAH-like) species and fullerenes (C$_{60}$) distinguished by their mid-infrared emission. Previous laboratory and astronomical studies suggest that the formation of both species could be related to the decomposition, by photochemical processing, of hydrogenated amorphous carbon (HAC) grains. Then, HACs and, seemingly, big-fullerene related species (e.g., carbon onions) have been suggested as potential carriers of the UV bump at 2175Å and the far-UV rise common to interstellar extinction curves. Our goal is to investigate the UV bump with the possible presence of a HAC extinction component in the International Ultraviolet Explorer (IUE) spectra of C-rich PNe; both with detected and non-detected fullerenes. The considered sample includes three C$_{60}$-PNe (Tc 1, IC 418, and IC 2501) and the non-C$_{60}$-PN Hen 2-5. Independently of the presence of C$_{60}$ in their circumstellar envelopes, we found that the UV bump in all sample PNe is well explained by interstellar extinction, suggesting that species different from those of the foreground insterstellar medium, e.g., large fullerene-related species like carbon onions, are not the carrier. Interestingly, we found that PNe Tc 1 and Hen 2-5 show an absorption in the FUV rise. Their IUE continuum spectra may be very well reproduced by including the extinction curve of HAC-like very small grains (VSG). The possible presence of both species, HAC-like grains and fullerenes (C$_{60}$), in Tc 1 could support the HAC photochemical processing scenario for the formation of fullerenes in the complex circumstellar envelopes of PNe.
description: 9 pages, 8 figures. Accepted for publication in MNRAS
Additional file 1: of Who needs collaborative care treatment? A qualitative study exploring attitudes towards and experiences with mental healthcare among general practitioners and care managers
Creators: name: MĂ¸Ller, Marlene
name: Mygind, Anna
name: Bro, Flemming
Publisher: name: figshare
Year: 2018
Subjects: subject: 69999 Biological Sciences not elsewhere classified
subject: FOS: Biological sciences
subject: Science Policy

description: Interview guides. (PDF 126 kb)
Renormalization of gauge invariant composite operators in light-cone gauge
Creators: name: Acerbi, C.
name: Bassetto, A.
Publisher: name: arXiv
Year: 1993
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We generalize to composite operators concepts and techniques which have been successful in proving renormalization of the effective Action in light-cone gauge. Gauge invariant operators can be grouped into classes, closed under renormalization, which is matrix-wise. In spite of the presence of non-local counterterms, an ``effective" dimensional hierarchy still guarantees that any class is endowed with a finite number of elements. The main result we find is that gauge invariant operators under renormalization mix only among themselves, thanks to the very simple structure of Lee-Ward identities in this gauge, contrary to their behaviour in covariant gauges.
description: 35100 Padova, Italy DFPD 93/TH/53, July 1993 documentstyle[preprint,aps]{revtex}