cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
ASTER+S > ART ^ SEALIFE: HOPE - who will turn the tide
Creators: name: García-Robles, Rocío
name: Muñoz del Amo, Áurea
name: Infante-del-Rosal, Fernando
Publisher: name: Zenodo
Year: 2025

description: INTRODUCTION TO ASTER+S AND THE SEALIFE EDITION We aimed to build bridges with scientists from other regions such as Catalonia and open co-creation to creators from other provinces and European countries. Thus, our ASTER project has evolved into a program we call ASTER+S (Art-Science-Technology-Engineering Research for + with Society). What uniquely characterizes us is our transdisciplinary and social vocation, where, through our "eco-SciArt" methodology, we strive for all participants (scientists, artists, engineers, humanists, etc.) to develop alterity, thinking from our companions' perspectives and dismantling stereotypes and prejudices: A scientist can think in ethical, metaphysical, or synesthetic dimensions to become an inspiring being. An artist can understand and be imbued by the complexity and diversity of various scientific approaches. An engineer can contribute to the collective conception of a work, and so on. All of us let our souls be permeated by a kind of transdisciplinary osmosis that captures us, making us more aware of the great challenges of our time, allowing us to empathize with other people and even other species. There is something magical in this process; we only need to let ourselves experience it to discover ourselves in new realities and new approaches in our multifaceted universe.

Thus, the ASTER+S > ART ^ SEALIFE (@asterproyecto) exhibition is born from the SciArt collaboration between the Institute of Marine Sciences (CSIC, Barcelona, @icm.csic) and the ASTER+S research team from the University of Seville with some invited participants (Netherlands and Barcelona). We take this opportunity to express our immense gratitude to all the scientists of the EMBIMOS research group at the ICM for their involvement, enthusiasm, and financing, and also to the Aparejadores Foundation and COAAT of Seville for their unconditional support. We start from the scientific question: How can citizens contribute to better understanding and caring for our marine ecosystems affected by the Anthropocene? We focus on understanding how marine life is developing beneath the surface under the influence of climate change, with the additional dimension of citizen science practices as the central modus operandi of the EMBIMOS research group (MINKA: https://minka-sdg.org/). Citizens contributing to the vast task of discovering new species and monitoring the impact of climate and humans more broadly and deeply, to better understand and influence decision-making aimed at protecting or at least mitigating the impact of the Anthropocene. Our eco-SciArt methodology supports our essence of transdisciplinary co-creation. We believe in the enormous power of Contemporary Art to awaken the general public's curiosity and individual and collective critical thinking through works conceived and developed through the cross-pollination of creative people.
Level-Rank Duality of WZW Theories and Isomorphisms of N=2 Coset Models
Creators: name: Fuchs, J.
name: Schweigert, C.
Publisher: name: arXiv
Year: 1993
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: Mappings between certain infinite series of N=2 superconformal coset models are constructed. They make use of level-rank dualities for B, C and D type theories. While the WZW level-rank dualities do not constitute isomorphisms of the theories, they lead to level-rank dualities of N=2 coset models that preserve the cft properties in such a manner that the coset models related by duality are expected to be isomorphic as conformal field theories. The construction also gives some further insight in the nature of the resolution of field identification fixed points of coset theories.
description: 50 pages, NIKHEF-H/93-16a. (Contrary to the claim in the original version of this paper, our results in sections 3 through 5 are in perfect agreement with those of ref. [4]. We are grateful to the authors of ref. [4] for extensive explanation of their notation and apologize for having misrepresented their work.)
Impact of New Physics on the EW vacuum stability in a curved spacetime background
Creators: name: Bentivegna, E.
name: Branchina, V.
name: Contino, F.
name: Zappalà, D.
Publisher: name: arXiv
Year: 2017
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: It has been recently shown that, contrary to an intuitive decoupling argument, the presence of new physics at very large energy scales (say around the Planck scale) can have a strong impact on the electroweak vacuum lifetime. In particular, the vacuum could be totally destabilized. This study was performed in a flat spacetime background, and it is important to extend the analysis to curved spacetime since these are Planckian-physics effects. It is generally expected that under these extreme conditions gravity should totally quench the formation of true vacuum bubbles, thus washing out the destabilizing effect of new physics. In this work we extend the analysis to curved spacetime and show that, although gravity pushes toward stabilization, the destabilizing effect of new physics is still (by far) the dominating one. In order to get model independent results, high energy new physics is parametrized in two different independent ways: as higher order operators in the Higgs field, or introducing new particles with very large masses. The destabilizing effect is observed in both cases, hinting at a general mechanism that does not depend on the parametrization details for new physics, thus maintaining the results obtained from the analysis performed in flat spacetime.
description: 22 pages, 11 figures
A Six-Planet System Around the Star HD 34445
Creators: name: Vogt, Steven S.
name: Butler, R. Paul
name: Burt, Jennifer
name: Tuomi, Mikko
name: Laughlin, Gregory
name: Holden, Brad
name: Teske, Johanna K.
name: Shectman, Stephen A.
name: Crane, Jeffrey D.
name: Diaz, Matias
name: Thompson, Ian B.
name: Arriagada, Pamela
name: Keiser, Sandy
Publisher: name: arXiv
Year: 2017
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: FOS: Physical sciences

description: We present a new precision radial velocity dataset that reveals a multi-planet system orbiting the G0V star HD 34445. Our 18-year span consists of 333 precision radial velocity observations, 56 of which were previously published, and 277 which are new data from Keck Observatory, Magellan at Las Campanas Observatory, and the Automated Planet Finder at Lick Observatory. These data indicate the presence of six planet candidates in Keplerian motion about the host star with periods of 1057, 215, 118, 49, 677, and 5700 days, and minimum masses of 0.63, 0.17, 0.1, 0.05, 0.12 and 0.38 Jupiter masses respectively. The HD 34445 planetary system, with its high degree of multiplicity, its long orbital periods, and its induced stellar radial velocity half-amplitudes in the range $2 \,{\rm m\, s^{-1}} \lesssim K \lesssim 5\,{\rm m\, s^{-1}}$ is fundamentally unlike either our own solar system (in which only Jupiter and Saturn induce significant reflex velocities for the Sun), or the Kepler multiple-transiting systems (which tend to have much more compact orbital configurations)
description: 10 pages, 11 figures
Hic jacet corpus Quintii Martii Rom. Coss. La spedizione del console Q. Marcio Filippo contro i Liguri Apuani fra fantasia e realtà
Creators: name: Salomone Gaggero, Eleonora
Publisher: name: Zenodo
Year: 2019
Subjects: Q. Marcius Philippus
186 B.C.
Apuani
Saltus Marcius
CIL XI 189*

description: This paper analyzes the campaign against the Apuani in the year 186 B.C., and CIL XI 189*. During this campaign the consul Q. Marcius Philippus suffered a severe military defeat at saltus Marcius, an unknown site; CIL XI 189* is a false epigraph, that would have been discovered in a grave along with a helmet in 1777 on mount Caprione near Canale del Marzo (Arcola, SP). This epigraph, according to Righetti, who reports it, would prove that the Ligurians defeated the consul really near Canale del Marzo.
Measurement of bioimpedance and application of Cole model to study the effect of moisturizing cream on human skin
Creators: name: Podder, Soumyajit
Publisher: name: figshare
Year: 2021
Subjects: Biophysics

description: Abstract: A non-invasive method of measuring bioimpedance is presented to study the effect of moisturizing cream on human skin. A novel two-electrode system is developed to get electrical access at the area of interest on human skin. Controlled experiments are conducted for a duration of 47 days. Bioimpedance is measured by LCR meter in the frequency range of 1 Hz to 5 kHz. The measured impedance is then fitted with the Cole model and the relevant Cole parameters are extracted. Analysis of variance is performed on the Cole parameters to gain statistical relevance. It is found that one of the Cole parameters, namely the relaxation-time changes significantly due to the treatment of the skin with a moisturizing cream at more than 95% confidence level. The relaxation-time increases sharply during the treatment period and drops sharply in the post-treatment period. The effectiveness of the two types of cream is studied. The gender distinguishability during the application of a moisturizing cream is also studied. A very generic bioimpedance measurement method to assess the physiological condition of local skin is demonstrated here and the method has potential application in human skin related diseases and treatments.
La Val Grue. Brevi notizie storiche sui paesi della valle
Creators: name: Salone Gobat, Anna Maria
Publisher: name: Zenodo
Year: 2019
Subjects: Avolasca
Garbagna
Grue
Montegioco
Sarezzano

description: The Val Grue, like other valleys in Lower Piedmont bordering Liguria, takes its name from the stream that flows through it. The territory, inhabited in ancient times by the Ligurians, a refuge for the Christians persecuted by the Roman empire, lordship of the bishops of Tortona in the feudal era, in the nineteenth century, after the fall of Napoleon Bonaparte, is merged, like the rest of Piedmont, to Kingdom of Sardinia. Over the centuries, life in the valley has not been easy, marred by epidemics of plague and cholera, famine, earthquake: however memories of the past – such as ancient parishes, churches, ruins of defensive structures, prestigious buildings, works of art – are still present and deserve to be known. The inhabited centers along the Grue are: Dernice, Garbagna, Avolasca, Casasco, Montemarzino, Montegioco, Cerreto Grue, Sarezzano, Viguzzolo. The activities practiced there are, mainly, agriculture, breeding, wine and dairy production, accompanied by hospitality and catering.
Probability error bounds for approximation of functions in reproducing kernel Hilbert spaces
Creators: name: Aydin, Ata Deniz
name: Gheondea, Aurelian
Publisher: name: arXiv
Year: 2020
Subjects: subject: Numerical Analysis (math.NA)
subject: Information Theory (cs.IT)
subject: Functional Analysis (math.FA)
subject: FOS: Mathematics
subject: FOS: Computer and information sciences
subject: Primary 41A65, Secondary 68T05, 46E22

description: We find probability error bounds for approximations of functions $f$ in a separable reproducing kernel Hilbert space $\mathcal{H}$ with reproducing kernel $K$ on a base space $X$, firstly in terms of finite linear combinations of functions of type $K_{x_i}$ and then in terms of the projection $π^n_x$ on $\mathrm{Span}\{K_{x_i}\}^n_{i=1}$, for random sequences of points $x=(x_i)_i$ in $X$. Given a probability measure $P$, letting $P_K$ be the measure defined by $\mathrm{d} P_K(x)=K(x,x)\mathrm{d} P(x)$, $x\in X$, our approach is based on the nonexpansive operator \[L^2(X;P_K)\niλ\mapsto L_{P,K}λ:=\int_X λ(x)K_x\mathrm{d} P(x)\in \mathcal{H},\] where the integral exists in the Bochner sense. Using this operator, we then define a new reproducing kernel Hilbert space, denoted by $\mathcal{H}_P$, that is the operator range of $L_{P,K}$. Our main result establishes bounds, in terms of the operator $L_{P,K}$, on the probability that the Hilbert space distance between an arbitrary function $f\in\mathcal{H}$ and linear combinations of functions of type $K_{x_i}$, for $(x_i)_i$ sampled independently from $P$, falls below a given threshold. For sequences of points $(x_i)_{i=1}^\infty$ constituting a so-called uniqueness set, the orthogonal projections $π^n_x$ to $\mathrm{Span}\{K_{x_i}\}^n_{i=1}$ converge in the strong operator topology to the identity operator. We prove that, under the assumption that $\mathcal{H}_P$ is dense in $\mathcal{H}$, any sequence of iid samples from $P$ yields a uniqueness set with probability $1$. This result improves on previous error bounds in weaker norms, such as uniform or $L^p$ norms, which yield only convergence in probability and not a.c. convergence. Two examples that show the applicability of this result to a uniform distribution on a compact interval and to the Hardy space $H^2(\mathbb{D})$ are presented as well.
description: 24 pages
Effect of Inorganic Phosphorus on Algae excised from Inland Waters
Creators: name: HK Garg
Publisher: name: figshare
Year: 2018
Subjects: subject: 60204 Freshwater Ecology
subject: FOS: Biological sciences

description: The present communication deals with the effect of inorganic phosphorus on composition and numeric strength of algae under standard test conditions.Higher concentration induced an inhibitory effect on majority of microphytes except a few viz. Microcystis aeruginosa, Merismopedia punctata, etc.
Opening up the black box: New tools and methods for studying digital platforms and social data
Creators: name: Lawrence, Amanda
Publisher: name: Zenodo
Year: 2023

description: Online platforms, including search engines, social media platforms, databases and online services, may be used for both harmful and beneficial ends, however much of what goes on within digital platforms is invisible. Opening up the 'black box' of digital platforms and their algorithms is essential for an expanding digital economy and society, for effective regulation and legislation to protect and enhance the digital experience for consumers, businesses, government and the community, and to ensure we have responsible, ethical and inclusive online spaces for all. In recent years, researchers in Australia and internationally have been going beyond APIs and web scraping methods and exploring new ways to study digital platforms and social data such as partnering with users through data donation projects to collect real-time or existing digital trace data and setting up cyber ranges and test environments to emulate digital platforms using generative AI. Australian researchers are at the forefront in developing and experimenting with these new methods and are now developing models and collaborations to enable national and cross-sector applications. In this presentation we provide an overview of the tools, infrastructure, methods and governance required to collect, generate and analyse social data, digital platforms and online user experience data, algorithms and interactions. We will discuss current projects and tools and our plans for the next generation of national research infrastructure, an Australian Social Data Observatory, to support critical research into digital platforms and their influence on Australia's digital economy and society over the coming decade.
Non-flipping 13C spins in NV diamond: Hyperfine and Spatial Characteristics by DFT Simulation of the C510[NV]H252 Cluster
Creators: name: Nizovtsev, A. P.
name: Kilin, S. Ya.
name: Pushkarchuk, A. L.
name: Pushkarchuk, V. A.
name: Kuten, S. A.
name: Zhikol, O. A.
name: Schmitt, S.
name: Unden, T.
name: Jelezko, F.
Publisher: name: arXiv
Year: 2017
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Single NV centers in diamond coupled by hyperfine interaction to neighboring 13C nuclear spins are now widely used in the emerging quantum technologies as elements of quantum memory adjusted to NV center electron spin qubit. For nuclear spins with low flip-flop rate, single shot readout was demonstrated under ambient conditions. Here we report on the systematic search of such stable NV-13C systems using density functional theory (DFT) to simulate hyperfine and spatial characteristics of all possible NV-13C complexes in the H-terminated cluster C510 [NV]-H252 hosting the NV center. Along with the expected stable NV- axial 13C systems wherein the 13C nuclear spin is located on the NV axis, we found for the first time new families of positions for the 13C nuclear spin exhibiting negligible hyperfine-induced flipping rates due to near-symmetric local spin density distribution. Spatially, these positions are located in the diamond bilayer passing through the vacancy of the NV center and being perpendicular to the NV axis. Analysis of available publications showed that, apparently, some of the predicted non-axial near-stable systems NV-13C have already been observed experimentally. A special experiment done on one of these systems confirmed the prediction made
A nearly symmetric double-image gravitational lens
Creators: name: Winn, Joshua N.
name: Hewitt, Jacqueline N.
name: Patnaik, Alok R.
name: Schechter, Paul L.
name: Schommer, Robert A.
name: Lopez, Sebastian
name: Maza, Jose
name: Wachter, Stefanie
Publisher: name: arXiv
Year: 2000
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We report the discovery of a new double-image gravitational lens resulting from our search for lenses in the southern sky. Radio source PMN J2004-1349 is composed of two compact components separated by 1.13 arcseconds in VLA, MERLIN and VLBA images. The components have a flux ratio of 1:1 at radio frequencies ranging from 5 GHz to 22 GHz. The I-band optical counterpart is also an equal double, with roughly the same separation and position angle as the radio double. Upon subtraction of the components from the I-band image, we identify a dim pattern of residuals as the lens galaxy. While the present observations are sufficient to establish that J2004-1349 is a gravitational lens, additional information will be necessary (such as the redshifts of the galaxy and quasar, and precise astrometry and photometry of the lens galaxy) before constructing detailed mass models.
description: 17 pp., 5 bitmapped figs. (contact jnwinn@mit.edu for nicer figs), in press, A.J. (substantially revised)
Public R&D and European agriculture: impact on productivity and return on R&D expenditure
Creators: name: Vollaro, Michele
name: Raggi, Meri
name: Viaggi, Davide
name: Vollaro, Michele
name: Raggi, Meri
name: Viaggi, Davide
Publisher: name: Unknown
Year: 2021
Subjects: subject: Research and Development/Tech Change/Emerging Technologies
subject: Public R&D investments
subject: agricultural productivity
subject: rate of return
subject: Europe

description: While higher effort in research is advocated for agriculture, there continues to be a lack of measurement of its impact in economic terms, at least in Europe. This paper seeks to assess the economic impact of public agricultural R&D investments in Europe. Different panel models are applied on 16 European countries, by employing productivity and investment data. Results show positive impacts with returns on pub-lic R&D investments on agricultural productivity of between 6.5% and 15.2%, varying according to model specifications and computation techniques. These values confirm that research expenditure in agriculture is well justified in economic terms. However, the results are highly dependent on the analytical approach and limited by the paucity of expenditure data. Further research is recommended to take into account the role of other important determinants of impact, such as climate, spill overs and the Common Agricultural Policy (CAP). However, a proper consideration of these variables will first require a major improvement of data availability.
Unified Robust Estimation
Creators: name: Wang, Zhu
Publisher: name: arXiv
Year: 2020
Subjects: subject: Methodology (stat.ME)
subject: Computation (stat.CO)
subject: FOS: Computer and information sciences

description: Robust estimation is primarily concerned with providing reliable parameter estimates in the presence of outliers. Numerous robust loss functions have been proposed in regression and classification, along with various computing algorithms. In modern penalised generalised linear models (GLM), however, there is limited research on robust estimation that can provide weights to determine the outlier status of the observations. This article proposes a unified framework based on a large family of loss functions, a composite of concave and convex functions (CC-family). Properties of the CC-family are investigated, and CC-estimation is innovatively conducted via the iteratively reweighted convex optimisation (IRCO), which is a generalisation of the iteratively reweighted least squares in robust linear regression. For robust GLM, the IRCO becomes the iteratively reweighted GLM. The unified framework contains penalised estimation and robust support vector machine and is demonstrated with a variety of data applications.
Bioassay Response to Additions of Urea in Simulated Lake Environments
Creators: name: Garg, Jaya
name: HK Garg
Publisher: name: figshare
Year: 2018
Subjects: subject: 60204 Freshwater Ecology
subject: FOS: Biological sciences

description: Three lentic water resources of Bhopal viz. Upper lake, Lower lake and Shahpura lake were studied for their limnochemical and biological characteristics. By adding different concentrations of urea, in microcosms developed from these reservoirs, an effort has been made to evaluate the effect of nitrogen on hydrobiological parameters. On treatment with urea, microcosmal waters exhibited erratic fluctuations in the amount of total Kjeldahl nitrogen (21.0-33.6 mg/l, UL; 33.6-49.4 mg/l, SL). Concentration of nitrate was more in treated microcosms than the controlled ones. Bioassay response depicted numeric reduction in total phytoplankton with the passage of time. Addition of urea resulted in two antithetic reactions-inhibition of ground water dominant chlorophytes and stimulation of cyanophytes.
Phase-error estimation and image reconstruction from digital-holography data using a Bayesian framework
Creators: name: Pellizzari, Casey J.
name: Spencer, Mark F.
name: Bouman, Charles A.
Publisher: name: arXiv
Year: 2017
Subjects: subject: Data Analysis, Statistics and Probability (physics.data-an)
subject: Computer Vision and Pattern Recognition (cs.CV)
subject: FOS: Physical sciences
subject: FOS: Computer and information sciences

description: The estimation of phase errors from digital-holography data is critical for applications such as imaging or wave-front sensing. Conventional techniques require multiple i.i.d. data and perform poorly in the presence of high noise or large phase errors. In this paper we propose a method to estimate isoplanatic phase errors from a single data realization. We develop a model-based iterative reconstruction algorithm which computes the maximum a posteriori estimate of the phase and the speckle-free object reflectance. Using simulated data, we show that the algorithm is robust against high noise and strong phase errors.
description: 10 pages, 8 figures
Classical and Quantized Tensionless Strings
Creators: name: Isberg, J.
name: Lindström, U.
name: Sundborg, B.
name: Theodoridis, G.
Publisher: name: arXiv
Year: 1993
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: {}From the ordinary tensile string we derive a geometric action for the tensionless ($T=0$) string and discuss its symmetries and field equations. The Weyl symmetry of the usual string is shown to be replaced by a global space-time conformal symmetry in the $T\to 0$ limit. We present the explicit expressions for the generators of this group in the light-cone gauge. Using these, we quantize the theory in an operator form and require the conformal symmetry to remain a symmetry of the quantum theory. Modulo details concerning zero-modes that are discussed in the paper, this leads to the stringent restriction that the physical states should be singlets under space-time diffeomorphisms, hinting at a topological theory. We present the details of the calculation that leads to this conclusion.
description: 34 pages, Latex, USITP 93-12
Tidal Synchronization and Differential Rotation of Kepler Eclipsing Binaries
Creators: name: Lurie, John C.
name: Vyhmeister, Karl
name: Hawley, Suzanne L.
name: Adilia, Jamel
name: Chen, Andrea
name: Davenport, James R. A.
name: Juric, Mario
name: Puig-Holzman, Michael
name: Weisenburger, Kolby L.
Publisher: name: arXiv
Year: 2017
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: Few observational constraints exist for the tidal synchronization rate of late-type stars, despite its fundamental role in binary evolution. We visually inspected the light curves of 2278 eclipsing binaries (EBs) from the Kepler Eclipsing Binary Catalog to identify those with starspot modulations, as well as other types of out-of-eclipse variability. We report rotation periods for 816 EBs with starspot modulations, and find that 79% of EBs with orbital periods less than ten days are synchronized. However, a population of short period EBs exists with rotation periods typically 13% slower than synchronous, which we attribute to the differential rotation of high latitude starspots. At 10 days, there is a transition from predominantly circular, synchronized EBs to predominantly eccentric, pseudosynchronized EBs. This transition period is in good agreement with the predicted and observed circularization period for Milky Way field binaries. At orbital periods greater than about 30 days, the amount of tidal synchronization decreases. We also report 12 previously unidentified candidate $δ$ Scuti and $γ$ Doradus pulsators, as well as a candidate RS CVn system with an evolved primary that exhibits starspot occultations. For short period contact binaries, we observe a period-color relation, and compare it to previous studies. As a whole, these results represent the largest homogeneous study of tidal synchronization of late-type stars.
description: Accepted for publication in the Astronomical Journal. EB rotation periods and classifications available at https://github.com/jlurie/decatur/blob/master/decatur/data/final_catalog.csv
title: ADCO, Ordre cistercien et abbaye de Cîteaux : comptes pour l'ordre (1337-1347), comptes du boursier (1377-1402) (11 H 1160), f. 00272
Creators: name: de la Côte-d'Or, Archives départementales
name: Archives Départementales De La Côte-D'Or
name: Petot, Frédérique
name: Projet CBMA
name: CBMA/CG21/F.PETOT/2017
name: Petot, Frédéric
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: LaMOP
subject: Laboratoire de Médiévistique Occidentale de Paris
subject: comptes

description: Ordre cistercien et abbaye de Cîteaux : comptes pour l'ordre (1337-1347), comptes du boursier (1377-1402), Archives départementales de la Côte-d'Or, (11 H 1160). Numérisation en mode image.
description: Relation: http://www.cbma-project.eu/
description: Bibliographic citation: Ordre cistercien et abbaye de Cîteaux : comptes pour l'ordre (1337-1347), comptes du boursier (1377-1402), Archives départementales de la Côte-d'Or, (11 H 1160), f. 00272, 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
An efficient method of detection of COVID-19 using Mask R-CNN on chest X-Ray images
Creators: name: Podder, Soumyajit
Publisher: name: figshare
Year: 2021
Subjects: subject: Artificial Intelligence and Image Processing
subject: FOS: Computer and information sciences

description: Abstract: Artificial intelligence techniques are used on chest X-ray images for accurate detection of diseases and this paper aims to develop a process which is capable of diagnosing COVID-19 using deep learning methods on X-ray images. For this purpose, we used Mask R-CNN method to train and test on the dataset to classify between patients infected and non-infected with COVID-19. The dataset used here contains a large number of frontal views of X-ray images which are an essential resource for the algorithms used in the development of tools for the detection of COVID-19. Using 668 chest X-ray images, the proposed model achieved an accuracy as high as 96.98%, specificity of 97.36% with the precision of 96.60%. The entire process is presented in detail. When a comparison table on the AI-based techniques is prepared, it is noticed that the Mask R-CNN technique on chest X-ray images provides better efficiency in the detection of COVID-19. The Mask R-CNN method is found to be accurate and robust in the detection of COVID-19 from chest X-ray images.
Capability of local operations and classical communication for distinguishing bipartite unitary operations
Creators: name: Li, Lvzhou
name: Zheng, Shenggen
name: Situ, Haozhen
name: Qiu, Daowen
Publisher: name: arXiv
Year: 2017
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: The problem behind this paper is, if the number of queries to unitary operations is fixed, say $k$, then when do local operations and classical communication (LOCC) suffice for optimally distinguishing bipartite unitary operations? We consider the above problem for two-qubit unitary operations in the case of $k=1$, showing that for two two-qubit entangling unitary operations without local parties, LOCC achieves the same distinguishability as the global operations. Specifically, we obtain: (i) if such two unitary operations are perfectly distinguishable by global operations, then they are perfectly distinguishable by LOCC too, and (ii) if they are not perfectly distinguishable by global operations, then LOCC can achieve the same optimal discrimination probability as the global operations.
description: Some typos have been removed. arXiv admin note: text overlap with arXiv:1708.00971
Relation between space charge limited current and power loss in open drift tubes
Creators: name: Biswas, Debabrata
name: Kumar, Raghwendra
Publisher: name: arXiv
Year: 2006
Subjects: subject: Plasma Physics (physics.plasm-ph)
subject: FOS: Physical sciences

description: Drift space is a region free from externally applied fields. It is an important part of many devices involving charged particle beams. The space charge effect imposes a limit on the current that can be transported through a drift space. A reasonable estimate of the space charge limited current density (J_{SCL}^{c}) in 'closed' drift tubes can be obtained from electrostatic considerations despite the fact that charge particle transport results in electromagnetic radiation. We deal here with the situation where the drift tube is 'open' to electromagnetic radiation, for instance due to the presence of a dielectric window. In such cases, electromagnetic radiation leaks out of the window which results in a decrease in the average kinetic energy of electrons. If the injected current density is much lower than J_{SCL}^{c}, power loss does not result in a change in the transmitted current. As the injected current density is increased, power loss increases and at a critical value lower than J_{SCL}^{c}, reflection of electrons begins to occur. We also show that the lowering of the space charge limited current on account of power loss can be incorporated in the standard electrostatic picture by introducing an effective voltage for the collection plate.
description: 9 figures
The Spectrum of the Burnside Tambara Functor of a Cyclic Group
Creators: name: Calle, Maxine
name: Ginnett, Sam
Publisher: name: arXiv
Year: 2020
Subjects: subject: Group Theory (math.GR)
subject: Commutative Algebra (math.AC)
subject: Algebraic Topology (math.AT)
subject: Category Theory (math.CT)
subject: Representation Theory (math.RT)
subject: FOS: Mathematics

description: We derive a family of prime ideals of the Burnside Tambara functor for a finite group $G$. In the case of cyclic groups, this family comprises the entire prime spectrum. We include some partial results towards the same result for a larger class of groups.
description: 32 pages, comments welcome. Final version to appear in the Journal of Pure and Applied Algebra
A Methodology for Progressively Developing and Harmonising FAIR Vocabularies for Global Interoperability of Geochemical Data
Creators: name: Wyborn, Lesley
Publisher: name: Zenodo
Year: 2023

description: OneGeochemistry is an international initiative formed to enable global sharing of geochemical data. Unfortunately geochemical datasets are notoriously heterogeneous and are collected by thousands of researchers/research groups on a diversity of samples (rocks, minerals, meteorites, fluids, gasses, etc) using hundreds of analytical techniques across multiple geoscience disciplines. Hence, achieving international consensus on key concepts and definitions requires considerable time and effort.

To ensure compliance with FAIR Interoperability Principle I2 (viz. (meta)data to use controlled vocabularies that also follow FAIR principles), multiple local vocabularies are emerging online that often replicate similar concepts.

To achieve a balance between meeting current demands for FAIR-compliant vocabularies versus time required to reach international agreement, OneGeochemistry has developed a three-tiered approach (local, community, international) towards making semantic resources FAIR and machine actionable:
     1) We encourage data providers with locally defined vocabularies or other resources to make them FAIR, available online from a reputable vocabulary service and ensure each term has a persistent identifier (SKOS/RDF);
     2) We encourage groups with similar topics to begin harmonising on concepts/definitions and publish these as community resources;
     3) We raise awareness of groups harmonising and making semantic resources FAIR-compliant at an international level, particularly those with endorsement from International authoritative groups (e.g., Scientific Unions/Associations/Societies/Commissions).

As convergence takes place towards internationally-agreed terms, the size of the community able to share (meta)data in machine-to-machine environments grows. Existing URIs initially used at either a local or community level could be redirected towards internationally endorsed definitions and concepts as these become available.
Two classes of radio flares in the blazar PKS 0420$-$014
Creators: name: Zhou, J. F.
name: Hong, X. Y.
name: Jiang, D. R.
name: Venturi, T.
Publisher: name: arXiv
Year: 2000
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: The two 5GHz VLBI (Very Long Baseline Interferometry) observations (1996 June and 1997 November) presented in this paper, combined with several formerb VLBI observations at 8.4GHz and 5GHz, suggest that the radio flares of the blazar PKS 0420$-$014 can be divided into two classes according to their geometric origins in 5 or 8.4GHz VLBI maps and the properties of light curves. One class of flares, which we call {\it core flares}, originate from the core. Core flares have large lags between the light curves at different frequencies, and will probably lead to the ejection of new jet components. The other class of flares, which we call {\it jet flares}, come from jet components. Jet flares vary simultaneously at different wavelengths, and may due to the Doppler boosting effect of rotating knots moving along a helical jet. The radio flare in 1991, accompanied by a simultaneous gamma-ray flare, was identified as a core flare.
description: 9 pages, 3 figures
Sharp Bounds on the Approximation Rates, Metric Entropy, and $n$-widths of Shallow Neural Networks
Creators: name: Siegel, Jonathan W.
name: Xu, Jinchao
Publisher: name: arXiv
Year: 2021
Subjects: subject: Machine Learning (stat.ML)
subject: Information Theory (cs.IT)
subject: Machine Learning (cs.LG)
subject: FOS: Computer and information sciences
subject: 62M45, 41A46

description: In this article, we study approximation properties of the variation spaces corresponding to shallow neural networks with a variety of activation functions. We introduce two main tools for estimating the metric entropy, approximation rates, and $n$-widths of these spaces. First, we introduce the notion of a smoothly parameterized dictionary and give upper bounds on the non-linear approximation rates, metric entropy and $n$-widths of their absolute convex hull. The upper bounds depend upon the order of smoothness of the parameterization. This result is applied to dictionaries of ridge functions corresponding to shallow neural networks, and they improve upon existing results in many cases. Next, we provide a method for lower bounding the metric entropy and $n$-widths of variation spaces which contain certain classes of ridge functions. This result gives sharp lower bounds on the $L^2$-approximation rates, metric entropy, and $n$-widths for variation spaces corresponding to neural networks with a range of important activation functions, including ReLU$^k$ activation functions and sigmoidal activation functions with bounded variation.
description: has been merged with arXiv:2106.14997
Three-dimensional planar model estimation using multi-constraint knowledge based on k-means and RANSAC
Creators: name: Saval-Calvo, Marcelo
name: Azorin-Lopez, Jorge
name: Fuster-Guillo, Andres
name: Garcia-Rodriguez, Jose
Publisher: name: arXiv
Year: 2017
Subjects: subject: Computer Vision and Pattern Recognition (cs.CV)
subject: FOS: Computer and information sciences

description: Plane model extraction from three-dimensional point clouds is a necessary step in many different applications such as planar object reconstruction, indoor mapping and indoor localization. Different RANdom SAmple Consensus (RANSAC)-based methods have been proposed for this purpose in recent years. In this study, we propose a novel method-based on RANSAC called Multiplane Model Estimation, which can estimate multiple plane models simultaneously from a noisy point cloud using the knowledge extracted from a scene (or an object) in order to reconstruct it accurately. This method comprises two steps: first, it clusters the data into planar faces that preserve some constraints defined by knowledge related to the object (e.g., the angles between faces); and second, the models of the planes are estimated based on these data using a novel multi-constraint RANSAC. We performed experiments in the clustering and RANSAC stages, which showed that the proposed method performed better than state-of-the-art methods.
Perturbation theory for localized solutions of sine-Gordon equation: decay of a breather and pinning by microresistor
Creators: name: Gulevich, D. R.
name: Kusmartsev, F. V.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: We develop a perturbation theory that describes bound states of solitons localized in a confined area. External forces and influence of inhomogeneities are taken into account as perturbations to exact solutions of the sine-Gordon equation. We have investigated two special cases of fluxon trapped by a microresistor and decay of a breather under dissipation. Also, we have carried out numerical simulations with dissipative sine-Gordon equation and made comparison with the McLaughlin-Scott theory. Significant distinction between the McLaughlin-Scott calculation for a breather decay and our numerical result indicates that the history dependence of the breather evolution can not be neglected even for small damping parameter.
Spin-orbit driven ferromagnetism at half moiré filling in magic-angle twisted bilayer graphene
Creators: name: Lin, Jiang-Xiazi
name: Zhang, Ya-Hui
name: Morissette, Erin
name: Wang, Zhi
name: Liu, Song
name: Rhodes, Daniel
name: Watanabe, K.
name: Taniguchi, T.
name: Hone, James
name: Li, J. I. A.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Materials Science (cond-mat.mtrl-sci)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: Strong electron correlation and spin-orbit coupling (SOC) provide two non-trivial threads to condensed matter physics. When these two strands of physics come together, a plethora of quantum phenomena with novel topological order have been predicted to emerge in the correlated SOC regime. In this work, we examine the combined influence of electron correlation and SOC on a 2-dimensional (2D) electronic system at the atomic interface between magic-angle twisted bilayer graphene (tBLG) and a tungsten diselenide (\WSe) crystal. In such a structure, strong electron correlation within the moiré flatband stabilizes correlated insulating states at both quarter and half-filling, whereas SOC transforms these Mott-like insulators into ferromagnets, evidenced by robust anomalous Hall effect with hysteretic switching behavior. The coupling between spin and valley degrees of freedom is unambiguously demonstrated as the magnetic order is shown to be tunable with an in-plane magnetic field, or a perpendicular electric field. In addition, we examine the influence of SOC on the isospin order and stability of superconductivity. Our findings establish an efficient experimental knob to engineer topological properties of moiré bands in twisted bilayer graphene and related systems.
description: 6 pages, 4 figures and supplementary information
Effects of axions on Population III stars
Creators: name: Choplin, Arthur
name: Coc, Alain
name: Meynet, Georges
name: Olive, Keith A.
name: Uzan, Jean-Philippe
name: Vangioni, Elisabeth
Publisher: name: arXiv
Year: 2017
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: Following the renewed interest for axions as a dark matter component, we revisit the effects of energy loss by axion emission on the evolution of the first generation of stars. These stars with zero metallicity are supposed to be massive, more compact, and hotter than subsequent generations. It is hence important to extend previous studies restricted to solar metallicity stars. Our analysis first compares the evolution of solar metallicity 8, 10 and 12 M$_\odot$ stars to previous work. We then calculate the evolution of 8 zero metallicity stars with and without axion losses and with masses ranging from 20 to 150 M$_\odot$. For the solar metallicity models, we confirm the disappearance of the blue loop phase for a value of the axion-photon coupling, $g_{aγ}=10^{-10} {\rm GeV}^{-1}$. Regarding the Pop. III stars, we show that for $g_{aγ}=10^{-10} {\rm GeV}^{-1}$, their evolution is not much affected by axion losses except within the range of masses 80$-$130 M$_\odot$. Such stars show significant differences both in their tracks within the $T_c$-$ρ_c$ diagram and in their central composition (in particular $^{20}$Ne and $^{24}$Mg). We discuss the origin of these modifications from the stellar physics point of view, and their potential observational signatures.
description: 10 pages, 11 figures, accepted for publication in A&A
Membrane fouling : mechanisms, modeling, and mitigation
Creators: name: Kirschner, Alon Yeshayahu
Publisher: name: The University of Texas at Austin
Year: 2019
Subjects: Membrane
Antifouling
Chlorine resistance
Polydopamine
Ultrafiltration
Crossflow
Constant flux

description: Membrane systems are used for water treatment in many industries due to their small footprint, low chemical and energy use, and ease of operation. However, membrane fouling remains a challenge, especially for highly concentrated feeds. Fouling increases hydraulic resistance, lowers water permeance and increases energy consumption. Fouled membranes require expensive cleaning or replacement, increasing operating costs. This study focuses on understanding fouling mechanisms in constant flux crossflow operation, commonly used in industry, and on development of novel fouling-resistant membrane coatings. A model combining two accepted fouling mechanisms, intermediate pore blocking and cake filtration, was developed to describe fouling in constant flux crossflow ultrafiltration (UF). The model was fit to experimental fouling results using rigid and deformable particles. Observations of the model’s accuracy at different fluxes shed light on the physical meaning of the threshold flux: the threshold flux is the flux below which cake buildup is negligible and above which cake filtration becomes the dominant fouling mechanism. Further development of the model may enable fouling prediction. To mitigate fouling in oil-water separations, two novel membrane coatings were developed. The first coating was based on polydopamine (PDA), a well-established fouling-resistant coating material. Poly(2-methacryloyloxyethyl phosphorylcholine) (PMPC), a polymer zwitterion, was co-deposited with PDA to form a composite coating on polysulfone (PS) UF membranes. Fouling experiments showed that addition of PMPC to PDA significantly improved fouling resistance. The difference in fouling performance is likely due to the strongly hydrophilic surface properties contributed by PMPC. The co-deposition method opens opportunities for expansion of the concept in which PDA acts as a robust platform for the integration of non-fouling co-adsorbates. The second coating addresses a weakness of PDA coatings – their sensitivity to aqueous chlorine. Chlorine is widely used as a disinfectant in water purification processes. Chlorine oxidation results in rapid removal of PDA coatings from membrane surfaces, rendering them vulnerable to fouling. Poly(N-methylaniline) (PNMA) is a polyaniline derivative which contains a tertiary amine, rather than a secondary amine as in PDA, making PNMA less vulnerable to chlorine oxidation. PNMA-modified membranes were more stable and had higher fouling resistance than PDA-modified membranes after chlorine exposure.
Allicin as a potent antibiotic against E. coli, P. vulgaris & H. pylori
Creators: name: Shrivastava, Ashish
name: HK Garg
Publisher: name: figshare
Year: 2018
Subjects: Biotechnology

description: The present study aims at the potential antibacterial value of Allicin against pathogenic bacteria, Escherichia coli, Proteus vulgaris and Helicobacter pylori by disc diffusion method. Bioactive compound Allicin was isolated from the garlic. The results revealed that the Allicin compound are potent in inhibiting these bacteria and this work highlights that the inhibitory effect is on par with standard antibiotics.
Efficient Data-Driven Optimization with Noisy Data
Creators: name: Van Parys, Bart P. G.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Optimization and Control (math.OC)
subject: Machine Learning (cs.LG)
subject: Statistics Theory (math.ST)
subject: FOS: Mathematics
subject: FOS: Computer and information sciences
subject: 90C15, 62C99

description: Classical Kullback-Leibler or entropic distances are known to enjoy certain desirable statistical properties in the context of decision-making with noiseless data. However, in most practical situations the data available to a decision maker is subject to a certain amount of measurement noise. We hence study here data-driven prescription problems in which the data is corrupted by a known noise source. We derive efficient data-driven formulations in this noisy regime and indicate that they enjoy an entropic optimal transport interpretation. Finally, we show that these efficient robust formulations are tractable in several interesting settings by exploiting a classical representation result by Strassen.