cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Charged string solutions with dilaton and modulus fields
Creators: name: Cvetic, M.
name: Tseytlin, A. A.
Publisher: name: arXiv
Year: 1993
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We find charged, abelian, spherically symmetric solutions (in flat space-time) corresponding to the effective action of $D=4$ heterotic string theory with scale-dependent dilaton $\p$ and modulus $\vp$ fields. We take into account perturbative (genus-one), moduli-dependent `threshold' corrections to the coupling function $f(\p,\vp)$ in the gauge field kinetic term $f(\p,\vp) F^2_{\m\n}$, as well as non-perturbative scalar potential $V(\p, \vp)$, e.g. induced by gaugino condensation in the hidden gauge sector. Stable, finite energy, electric solutions (corresponding to on abelian subgroup of a non-abelian gauge group) have the small scale region as the weak coupling region ($ϕ\ra -\infty$) with the modulus $\vp$ slowly varying towards smaller values. Stable, finite energy, abelian magnetic solutions exist only for a specific range of threshold correction parameters. At small scales they correspond to the strong coupling region ($\p\ra \infty$) and the compactification region ($\vp\ra 0$). The non-perturbative potential $V$ plays a crucial role at large scales, where it fixes the asymptotic values of $ϕ$ and $\vp$ to be at the minimum of $V$.
description: 42 pages, 5 figures, harvmac, CERN-TH.6911/93, UPR-573-T (minor corrections in Section 6)
Lettre de Esprit-Claude-François Calvet à Jean-François Séguier, 1772-02-03
Creators: name: Calvet, Esprit-Claude-François
name: Esprit-Claude-François Calvet
Publisher: name: NAKALA - https://nakala.fr (Huma-Num - CNRS)
publisherIdentifier: https://ror.org/04ces3204
publisherIdentifierScheme: ROR
Year: 2021
Subjects: Antiquités (général)
Epigraphie
Numismatique
Sciences naturelles (général)

description: [transcription] J'arrive à Delphes, Monsieur et cher ami, je viens vous y consulter, vous avez toujours la bonté de me faire part de vos lumières. On a trouvé depuis peu à une lieue et demie d'ici, en faisant un chemin vers Châteaurenard en Provence, la petite monnaie d'or ciincluse, elle est en or très pur quoique pâle, j'en aifait l'épreuve. Les lettres qu'elle porte quoique très lisibles ne me donnent aucun mot connu, je ne sais si on la trouverait dans Le Blanc ou dans Bouteroue, je n'aipas ces livres. Je vous prie de m'en dire votre sentiment.

J'attends une inscription originale sur une pierre égyptienne en caractères courants égyptiens. c'est un morceau précieux qui nous donnera peut-être des lumières, hier j'aireçu avis que ce marbre était déjà à Marseille. Je ne manqueraipas de vous la communiquer.

Il y a quelques jours que j'aifait remettre à M. Gourand un paquet de graines à votre adresse que M. de la Tourrette m'a fait parvenir, il doit vous avoir été déjà rendu.

Je vous écrivis dernièrement par la commodité que me procura mon ami M. le marquis de Conceyl, il est naturaliste et savant et se faisait une fête de vous être présenté. Les affaires l'ont obligé de s'arrêter à Tarascon, je ne sais ce que ma lettre est devenue.

Vous pourrez me renvoyer cette monnaie par la poste dans votre lettre. Je suis toujours avec les sentiments que vous me connaissez.

Monsieur

Votre très humble et très obéissant serviteur

Calvet

Avignon ce 3 février 1772
description: [objet joint à la lettre] Médailles
description: [description objet] Une petite monnaie en or
description: [personnes citées] M. Gourand, Marc Antoine Louis Claret de La Tourrette, Marquis de Conceyl
description: Source: [lieu de Conservation] Nîmes, Bibliothèque Carré d'Art [cote]ms. 140, fol. 149
description: Source: ark:/12148/btv1b10015185m
Venus-Solar Wind Interaction: Asymmetries and the Escape of O+ Ions
Creators: name: Kallio, E.
name: Jarvinen, R.
name: Janhunen, P.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Space Physics (physics.space-ph)
subject: FOS: Physical sciences

description: We study the interaction between Venus and the solar wind using a global three-dimensional self-consistent quasi-neutral hybrid (QNH) model. The model treats ions (H+, O+) as particles and electrons as a massless charge neutralising fluid. In the analysed Parker spiral interplanetary magnetic field (IMF) case (IMF = [8.09, 5.88, 0] nT) a notable north-south asymmetry of the magnetic field and plasma exists, especially in the properties of escaping planetary O+ ions. The asymmetry is associated with ion finite gyroradius effects. Furthermore, the IMF x-component results in a dawn-dusk asymmetry. Overall, the QNH model is found to reproduce the main observed plasma and magnetic field regions (the bow shock, the magnetosheath, the magnetic barrier and the magnetotail), implying the potential of the developed model to study the Venusian plasma environment and especially the non-thermal ion escape.
description: 10 pages, 22 figures, accepted for Planetary and Space Science
Current monitoring and treatment of progressive fibrosing interstitial lung disease: a survey of physicians in Japan, the United States, and the European Union
Creators: name: Takizawa, Ayako
name: Kamita, Mitsutoyo
name: Kondoh, Yasuhiro
name: Bando, Masashi
name: Kuwana, Masataka
name: Inoue, Yoshikazu
Publisher: name: Taylor & Francis
Year: 2020
Subjects: subject: Medicine
subject: Genetics
subject: FOS: Biological sciences
subject: 59999 Environmental Sciences not elsewhere classified
subject: FOS: Earth and related environmental sciences
subject: Sociology
subject: FOS: Sociology
subject: 69999 Biological Sciences not elsewhere classified
subject: Cancer
subject: Science Policy

description: To understand assumptions about and approaches to interstitial lung disease (ILD), including those of the progressive phenotype (progressive fibrosing ILD), this multinational survey assessed physicians’ attitudes toward, knowledge of, and management strategies for progressive fibrosing ILD. This internet-based survey of physicians was conducted between November 2018 and February 2019. Practical management strategies for progressive fibrosing ILD, and current approaches to the assessment and treatment of ILD, were compared between countries/regions (Japan vs. United States and European Union) and specialties (pulmonologists vs. rheumatologists). The survey was completed by 574 respondents. Compared with Western countries, the progressive fibrosing phenotype concept was not widely understood by Japanese respondents, with no notable differences in the understanding of this phenotype between pulmonologists and rheumatologists. Across all regions, pulmonary function tests, diffusing capacity of the lungs for carbon monoxide assessments, and pulse oximeter measurements were commonly performed at intervals of ≤6 months. In general, physicians in the United States and European Union preferred physiologic approaches for follow-up, while those in Japan preferred imaging and blood monitoring. Compared with rheumatologists, pulmonologists performed more frequent monitoring of autoimmune ILDs, and the differences between specialties were most pronounced in Japan. Regional differences in treatment approaches were observed, probably reflecting the local availability of agents and healthcare environments. Awareness and management of progressive fibrosing ILD varied between specialties and regions, highlighting an unmet need for standardized diagnosis, treatment guidelines, and specialist education in this area.
Gender interruption spotting: A proof-of-concept using audio machine learning to detect gender dynamics of simultaneous speech events in recorded conversation
Creators: name: Clark, Kaylie
Publisher: name: Zenodo
Year: 2025
Subjects: social data science
computational social science
audio machine learning
supervised learning
conversational interruption
interruption
WhisperX
DistilHuBERT
Gender

description: There is a long history of research interest in gender and conversation interruptions, especially about what it means for equality and power. Despite the extensive literature, there is wide disagreement on gender patterns due to methodological differences and the constraints of qualitative research designs. Only a recent few studies have begun to use computational methods, which have the potential to improve validity and generalizability to studies about interruptions. This paper is a proof-of-concept that documents the first attempt to investigate how audio machine learning using a neural network with a transformer architecture on large audio datasets can add to research on gender-based interruption patterns, especially compared to existing text-based methods. Audio classifiers trained on a novel dataset of 3,076 examples of interruptions and non-interruptions show promising results, with classification metrics from 0.66 to 0.87. This suggests that it is possible to detect interruptions including the gender dynamic of the speakers based on the audio signature of the audio events. A rule-based text classifier tested on automatically generated transcripts performed much worse, underscoring the unique potential of audio methods. Future developments on this method (larger training dataset, modified operationalization, and larger models) could create a reliable classifier for detecting interruptions with their gender dynamic, enabling a greatly expanded range of research opportunities into this phenomenon.
The circumstellar envelope around the S-type AGB star W Aql Effects of an eccentric binary orbit
Creators: name: Ramstedt, S.
name: Mohamed, S.
name: Vlemmings, W. H. T.
name: Danilovich, T.
name: Brunner, M.
name: De Beck, E.
name: Humphreys, E. M. L.
name: Lindqvist, M.
name: Maercker, M.
name: Olofsson, H.
name: Kerschbaum, F.
name: Quintana-Lacaci, G.
Publisher: name: arXiv
Year: 2017
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: The CO(J=3-2) emission from the CSE of the binary S-type AGB star W Aql has been observed at subarcsecond resolution using ALMA. The aim of this paper is to investigate the wind properties of the AGB star and to analyse how the known companion has shaped the CSE. The average mass-loss rate during the creation of the detected CSE is estimated through modelling, using the ALMA brightness distribution and previously published single-dish measurements as observational constraints. The ALMA observations are presented and compared to the results from a 3D smoothed particle hydrodynamics (SPH) binary interaction model with the same properties as the W Aql system and with two different orbital eccentricities. Three-dimensional radiative transfer modelling is performed and the response of the interferometer is modelled and discussed. The estimated average mass-loss rate of W~Aql agrees with previous results. The size of the emitting region is consistent with photodissociation models. The CO(J=3-2) emission is dominated by a smooth component overlayed with two weak arc patterns with different separations. The larger pattern is predicted by the binary interaction model with separations of 10" and therefore likely due to the known companion. It is consistent with a binary orbit with low eccentricity. The smaller separation pattern is asymmetric and coincides with the dust distribution, but the separation timescale (200 yrs) is not consistent with any known process of the system. The separation of the known companions of the system is large enough to not have a very strong effect on the circumstellar morphology. The density contrast across the envelope of a binary with an even larger separation will not be easily detectable, even with ALMA, unless the orbit is strongly asymmetric or the AGB star has a much larger mass-loss rate.
description: 10 pages, 8 figures
Dielectric spectroscopy of ferroelectric nematic liquid crystals: Measuring the capacitance of insulating interfacial layers
Creators: name: Clark, Noel A.
name: Chen, Xi
name: Maclennan, Joseph E.
name: Glaser, Matthew A.
Publisher: name: arXiv
Year: 2022
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: FOS: Physical sciences

description: Numerous measurements of the dielectric constant $ε$ of the recently discovered ferroelectric nematic ($N_F$) liquid crystal (LC) phase report extraordinarily large values of $ε^\prime$ (up to ~30,000). We show that what is in fact being measured in such experiments is the high capacitance of the non-ferroelectric, interfacial, insulating layers of nanoscale thickness that bound the $N_F$ material in typical cells.
 We analyze a parallel-plate cell filled with $N_F$ material of high-polarization $\mathbf{P}$, oriented parallel to the plates at zero applied voltage. Minimization of the dominant electrostatic energy renders $\mathbf{P}$ spatially uniform and orients it to make the electric field in the $N_F$ as small as possible, a condition under which the voltage applied to the cell appears almost entirely across the high-capacity interfacial layers. This coupling of orientation and charge creates a combined polarization-external capacitance (PCG) Goldstone reorientation mode requiring applied voltages orders of magnitude smaller than that of the $N_F$ layer alone to effectively transport charge across the $N_F$ layer. The $N_F$ layer acts as a low-value resistor and the interfacial capacitors as reversible energy storage reservoirs, lowering the restoring force (mass) of the PCG mode and producing strong reactive dielectric behavior. Analysis of data from several experiments on ferroelectric liquid crystals (chiral smectics C, bent-core smectics, and the $N_F$ phase supports the PCG model, showing that deriving dielectric constants from electrical impedance measurements of high-polarization ferroelectric LCs, without properly accounting for the self-screening effects of polarization charge and the capacitive contributions of interfacial layers, can result in overestimation of the $ε^\prime$ values of the LC by many orders of magnitude.
description: 30 pages of text, 11 figures, 59 references (47 pages total)
Empowering Collaboration: An Insight into The Carpentries Executive Council
Creators: name: Ghatak, Nisha
Publisher: name: Zenodo
Year: 2023

description: Situation:
The Carpentries is a global organisation driven to support communities teaching data and coding skills. The organisation established an Executive Council to oversee and guide their core team in strategic decisions. The council consists of diverse and experienced individuals who are passionate about advancing the organisation's mission and ensuring its long-term success.

Task:
The goal of this presentation on The Carpentries Executive Council is to inform and engage the audience about the council's role, responsibilities, and impact on the global community. The presentation aims to highlight how the council promotes collaboration, inclusivity, and effective governance within The Carpentries.

Action:
To accomplish this, the presentation will introduce the Executive Council, detailing various processes and the council's key responsibilities, such as setting strategic goals, establishing policies, and ensuring financial sustainability.
The presentation will touch upon steps taken by the Executive Council to foster collaboration. Examples include organising regular meetings with Carpentries community members, facilitating discussions on important initiatives, and providing mentorship opportunities.
Furthermore, the presentation will highlight the council's role in effective governance.

Result:
The audience will gain a comprehensive understanding of The Carpentries Executive Council's role and its impact on the community. Understanding these processes will enable the audience to gain insight into how decisions are made within the Carpentries and how community members can leverage the available resources.
Ab initio Static Exchange-Correlation Kernel across Jacob's Ladder without functional derivatives
Creators: name: Moldabekov, Zhandos A.
name: Böhme, Maximilian
name: Vorberger, Jan
name: Blaschke, David
name: Dornheim, Tobias
Publisher: name: arXiv
Year: 2022
Subjects: subject: Computational Physics (physics.comp-ph)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: The electronic exchange-correlation (XC) kernel constitutes a fundamental input for the estimation of a gamut of material properties such as the dielectric characteristics, the thermal and electrical conductivity, or the response to an external perturbation. In practice, no reliable method has been known that allows to compute the kernel of real materials with arbitrary XC functionals. In this work, we overcome this long-standing limitation by introducing a new, formally exact methodology for the computation of the material specific static XC kernel exclusively within the framework of density functional theory (DFT) and without employing functional derivatives -- no external input apart from the usual XC-functional is required. We compare our new results with exact quantum Monte Carlo (QMC) data for the archetypical uniform electron gas model at both ambient and warm dense matter conditions. This gives us unprecedented insights into the performance of different XC-functionals, and has important implications for the development of new functionals that are designed for the application at extreme temperatures. In addition, we obtain new DFT results for the XC kernel of warm dense hydrogen as it occurs in fusion applications and astrophysical objects. The observed excellent agreement to the QMC reference data demonstrates that our framework is capable to capture nontrivial effects such as XC-induced isotropy breaking in the density response of hydrogen at large wave numbers.
Triple Negative Breast Cancer (TNBC): A New Challenge for Oncologists
Creators: name: Shrivastava, Ashish
name: HK Garg
Publisher: name: figshare
Year: 2018
Subjects: Biotechnology

description: Cancer is one among the scariest and lethal diseases in the world, frightening mankind largely for the reason that it is hard to live through it. Since, cancer results from the unrestricted proliferation of specific modified normal human cells, it’s neither easy to track it nor to curb it. One of the contemporary solutions to alleviate malignancy comprise drug therapy (chemotherapy) despite the very well-known fact that majority of drugs used for cancer treatment are cytotoxic that work by interfering in some ways with the operation of the cell's DNA.Breast cancers which do not express oestrogen, progesterone, or HER-2 neu receptors are known as triple negative breast carcinomas (TNBC). In western literature, they have been reported as extremely aggressive with a poor prognosis. However there is paucity of information on breast cancer in India. A number of recent studies have shown that TNBC is not a homogeneous entity at the phenotypic and molecular levels. Clinically, this heterogeneity manifests itself in unpredictable outcomes for patients treated with the same or similar strategies.Despite poor prognosis, subgroups of TNBC patients have excellent outcomes. There are more chances of recurrence in the first few years after surgery as compared to patients with ER-positive tumors. Thus, the view of TNBC as a homogeneous subtype with uniformly poor prognosis is an over-simplified perception.
Angle-resolved transport nonreciprocity and spontaneous symmetry breaking in twisted trilayer graphene
Creators: name: Zhang, Naiyuan James
name: Lin, Jiang-Xiazi
name: Chichinadze, Dmitry V.
name: Wang, Yibang
name: Watanabe, Kenji
name: Taniguchi, Takashi
name: Fu, Liang
name: Li, J. I. A.
Publisher: name: arXiv
Year: 2022
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: The ability to identify and characterize spontaneous symmetry breaking is central to our understanding of 2D materials with strong correlation, such as the moiré flat bands in magic-angle twisted graphene bilayer and trilayer. In this work, we utilize angle-resolved measurements of transport nonreciprocity to investigate spontaneous symmetry breaking in twisted trilayer graphene. By analyzing the angular dependence of nonreciprocity in both longitudinal and transverse channels, we are able to identify the symmetry axis associated with the underlying electronic order. We report that a hysteretic rotation in the mirror axis can be induced by thermal cycles and a large current bias, which offers unambiguous evidence for the spontaneous breaking of rotational symmetry. Moreover, the onset of nonreciprocity with decreasing temperature coincides with the emergence of orbital ferromagnetism. Combined with the angular dependence of the superconducting diode effect, our findings uncover a direct link between rotational and time-reversal symmetry breaking. These symmetry requirements point towards the exchange-driven instabilities in the momentum space as a possible origin for transport nonreciprocity in tTLG.
description: Main text pages 1-8, 4 figures. Method pages 9-15, 9 figures. SI page 16-26, 13 figures
Log-periodic oscillations due to discrete effects in complex networks
Creators: name: Sienkiewicz, Julian
name: Fronczak, Piotr
name: Holyst, Janusz A.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: We show that discretization of internode distribution in complex networks affects internode distances l_ij calculated as a function of degrees (k_i k_j) and an average path length as function of network size N. For dense networks there are log-periodic oscillations of above quantities. We present real-world examples of such a behavior as well as we derive analytical expressions and compare them to numerical simulations. We consider a simple case of network optimization problem, arguing that discrete effects can lead to a nontrivial solution.
description: 5 pages, 5 figures, REVTEX
First cosmological constraints combining Planck with the recent gravitational-wave standard siren measurement of the Hubble constant
Creators: name: Di Valentino, Eleonora
name: Melchiorri, Alessandro
Publisher: name: arXiv
Year: 2017
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: The recent observations of gravitational-wave and electromagnetic emission produced by the merger of the binary neutron-star system GW170817 have opened the possibility of using standard sirens to constrain the value of the Hubble constant. While the reported bound of $H_0=70_{-8}^{+12}$ at $68 \%$ C.L. is significantly weaker than those recently derived by observations of Cepheid variables, it does not require any form of cosmic distance ladder and can be considered as complementary and, in principle, more conservative. Here we combine, for the first time, the new measurement with the Planck Cosmic Microwave Background observations in a $12$ parameters extended $Λ$CDM scenario, where the Hubble constant is weakly constrained from CMB data alone and bound to a low value $H_0=55^{+7}_{-20}$ km/s/Mpc at $68 \%$ C.L. We point out that the non-Gaussian shape of the GW170817 bound makes lower values of the Hubble constant in worst agreement with observations than what expected from a Gaussian form. The inclusion of the new GW170817 Hubble constant measurement therefore significantly reduces the allowed parameter space, improving the cosmological bounds on several parameters as the neutrino mass, curvature and the dark energy equation of state.
description: 5 pages, 4 Figures, few typos corrected
title: ADCO, Neuvième cartulaire de Saint-Étienne de Dijon (1661 - 1684), Cart. 32 (G 136), 745 folios, f. 0640
Creators: name: de la Côte d'Or, Archives départementales
name: CG21/F.PETOT/2012
name: Petot, Frédéric
name: Archives Départementales De La Côte-D'Or
name: Petot, Frédérique
name: Projet CBMA
Publisher: name: NAKALA - https://nakala.fr (Huma-Num - CNRS)
publisherIdentifier: https://ror.org/04ces3204
publisherIdentifierScheme: ROR
Year: 2020
Subjects: subject: LaMOP
subject: Laboratoire de Médiévistique Occidentale de Paris
subject: Corpus Burgundiae Medii Aevi
subject: Chartes de la Bourgogne du Moyen Âge
subject: cartulaire

description: Neuvième cartulaire de Saint-Étienne de Dijon (1661 - 1684), Archives départementales de la Côte-d'Or, Cart. 32 (G 136), 745 folios, f. 0640, Numérisation en mode image.
description: Relation: http://www.cbma-project.eu/
description: Bibliographic citation: Neuvième cartulaire de Saint-Étienne de Dijon (1661 - 1684), Archives départementales de la Côte-d'Or, Cart. 32 (G 136), 745 folios, f. 0640, in Projet CBMA - Corpus Burgundiae Medii Aevi [Ressource en ligne], https:// manuscrits.cbma-project.eu/
description: Provenance: abbaye Saint-Étienne de Dijon
description: Provenance: http://www.wikidata.org/entity/Q15945019
Should labeling be enforced on genetically designed products ?
Creators: name: HK Garg
name: Garg, Jaya
Publisher: name: figshare
Year: 2018
Subjects: subject: Biotechnology
subject: Genetics
subject: FOS: Biological sciences

description: The use of genetically designed organisms has sparked significant controversy in many areas. Some groups or individuals see the generation and use of GMO as intolerable meddling with biological states or processes that have naturally evolved over long periods of time, while others are concerned about the limitations of modern science to fully comprehend all of the potential negative ramifications of genetic manipulation.Labeling legislation has been introduced and rejected several times since 1996 on the grounds of ‘restraint of trade’ due to the cost of labeling. The controversy erupted again in 2009 when Graincorp, the U.S. largest grain handler, announced it would mix GM Canola with its unmodified grain. Traditional growers, who largely rely on GM-free markets, had been told that they would have to pay huge money to get endorsement on their products as GM free.Outside the U.S., the entire European Union and other countries such as Australia, China, Japan, and Russia require GMO labeling. In Australia, multiple surveys have shown that while 45% of the public accept GM foods, some 93% demand all genetically modified foods be labeled as such. In 2007, a survey by the Food Standards Australia and New Zealand depicted that 27% of Australians looked at the label to see if it contained GM material. There are other countries that make GMO labeling voluntary and many other countries have plans to introduce GMO labeling.In May 2012, the U.S. State of California voted on the labeling of genetically modified food. They opined that consumers have a right to know the content of their food and have a choice to avoid it if they do not wish to eat. On the other hand, advocates such as Du Pont, Monsanto and the Council for Biotechnology Information, which represents agribusiness, call it an attempt to scare consumers and make them feel that the food is unsafe. Though Biotechnology labeling is not enforced by the Food and Drug Administration (FDA), yet it has been adopted by over 40 countries. The present report summarizes an all-inclusive account of the virtues of labeling GMO products.
Understand the thermometry of hot nuclei from the energy spectra of light charged particles
Creators: name: Vient, E.
name: Augey, L.
name: Borderie, B.
name: Chbihi, A.
name: Dell'Aquila, D.
name: Fable, Q.
name: Francalanza, L.
name: Frankland, J. D.
name: Galichet, E.
name: Gruyer, D.
name: Guinet, D.
name: Henri, M.
name: La Commara, M.
name: Legouée, E.
name: Lehaut, G.
name: Neindre, N. Le
name: Lombardo, I.
name: Lopez, O.
name: Manduci, L.
name: Marini, P.
name: Parlog, M.
name: Rivet, M. F.
name: Rosato, E.
name: Roy, R.
name: St-Onge, P.
name: Spadaccini, G.
name: Verde, G.
name: Vigilante, M.
Publisher: name: arXiv
Year: 2017
Subjects: subject: Nuclear Experiment (nucl-ex)
subject: FOS: Physical sciences

description: In the domain of Fermi energy, the hot nucleus temperature can be determined by using the energy spectra of evaporated light charged particles. But this method of measurement is not without difficulties both theoretical and experimental. The presented study aims to disentangle the respective influences of different factors on the quality of this measurement : the physics, the detection (a 4? detector array as INDRA) and the experimental procedure. This analysis demonstrates the possibility of determining from an energy spectrum, with an accuracy of about 10 %, the true apparent temperature felt by a given type of particle emitted by a hot nucleus. Three conditions are however necessary : have a perfect detector of particles, an important statistics and very few secondary emissions. According to the GEMINI event generator, for hot nuclei of intermediate mass, only deuterons and tritons could fill these conditions. This temperature can allow to trace back to the initial temperature by using an appropriate method. This determination may be better than 15 %. With a real experimental device, an insufficient angular resolution and topological distortions caused by the detection can damage spectra to the point to make very difficult a correct determination of the apparent temperature. The experimental reconstruction of the frame of the hot nucleus may also be responsible for this deterioration
description: 17 pages, 16 figures submitted to PRC
Industrielle Sicherheit durch Zertifikatsmanagement-Konzepte im Lebenszyklus einer Produktions-Gray-Box
Creators: name: Madsen, Marwin
name: Barth, Mike
Publisher: name: Otto-von-Guericke-Universitätsbibliothek
Year: 2024
Subjects: IT/OT-Security
PKI
Modularisierung

description: Die zunehmende IT/OT-Security-Bedrohung für Industrieanlagen führt zu neuen Regelungen wie dem EU Cyber Resiliance Act. Gleichzeitig werden Innovationen wie modulare Produktionssysteme vorangetrieben, was zu Veränderungen der Automatisierungsarchitektur und damit auch zu bestehenden Angriffsvektoren führt. Bestehende Sicherheitskonzepte müssen für diese Entwicklungen überprüft werden, wobei die Verwendung von Zertifikaten und damit die Nutzung einer Public-Key-Infrastruktur für viele Sicherheitsmechanismen grundlegend ist. In diesem Artikel werden insbesondere neue Systemarchitekturen wie modulare Produktionszellen oder vernetzte Maschinenteile unter dem Aspekt der Sicherheit analysiert. Dazu werden verschiedene Architekturprinzipien wie Gray- und Black-Box als Grundlage herangezogen und in den Kontext des Zertifikatsmanagements gestellt.
Optimization of exposure time division for wide field observations
Creators: name: Popowicz, A.
name: Kurek, A. R.
Publisher: name: arXiv
Year: 2017
Subjects: subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: FOS: Physical sciences

description: The optical observations of wide fields of view encounter the problem of selection of best exposure time. As there are usually plenty of objects observed simultaneously, the quality of photometry of the brightest ones is always better than of the dimmer ones. Frequently all of them are equally interesting for the astronomers and thus it is desired to have all of them measured with the highest possible accuracy. In this paper we present a novel optimization algorithm dedicated for the division of exposure time into sub-exposures, which allows to perform photometry with more balanced noise budget. Thanks to the proposed technique, the photometric precision of dimmer objects is increased at the expense of the measurement fidelity of the brightest ones. We tested the method on real observations using two telescope setups demonstrating its usefulness and good agreement with the theoretical expectations. The main application of our approach is a wide range of sky surveys, including the ones performed by the space telescopes. The method can be applied for planning virtually any photometric observations, in which the objects of interest show a wide range of magnitudes.
description: 18 pages, 5 figures
Concentration estimates for slowly time-dependent singular SPDEs on the two-dimensional torus
Creators: name: Berglund, Nils
name: Nader, Rita
Publisher: name: arXiv
Year: 2022
Subjects: subject: Probability (math.PR)
subject: Mathematical Physics (math-ph)
subject: Analysis of PDEs (math.AP)
subject: FOS: Mathematics
subject: FOS: Physical sciences
subject: 60H15, 60G17 (primary), 34F15, 37H20 (secondary)

description: We consider slowly time-dependent singular stochastic partial differential equations on the two-dimensional torus, driven by weak space-time white noise, and renormalised in the Wick sense. Our main results are concentration results on sample paths near stable equilibrium branches of the equation without noise, measured in appropriate Besov and Hölder norms. We also discuss a case involving a pitchfork bifurcation. These results extend to the two-dimensional torus those obtained in [Berglund and Gentz, Proability Theory and Related Fields, 2002] for finite-dimensional SDEs, and in [Berglund and Nader, Stochastics and PDEs, 2022] for SPDEs on the one-dimensional torus.
description: 36 pages. Typos corrected, additional details in 2 proofs
Stochastic parameterization identification using ensemble Kalman filtering combined with expectation-maximization and Newton-Raphson maximum likelihood methods
Creators: name: Pulido, Manuel
name: Tandeo, Pierre
name: Bocquet, Marc
name: Carrassi, Alberto
name: Lucini, Magdalena
Publisher: name: arXiv
Year: 2017
Subjects: subject: Atmospheric and Oceanic Physics (physics.ao-ph)
subject: Data Analysis, Statistics and Probability (physics.data-an)
subject: FOS: Physical sciences

description: For modelling geophysical systems, large-scale processes are described through a set of coarse-grained dynamical equations while small-scale processes are represented via parameterizations. This work proposes a method for identifying the best possible stochastic parameterization from noisy data. State-the-art sequential estimation methods such as Kalman and particle filters do not achieve this goal succesfully because both suffer from the collapse of the parameter posterior distribution. To overcome this intrinsic limitation, we propose two statistical learning methods. They are based on the combination of two methodologies: the maximization of the likelihood via Expectation-Maximization (EM) and Newton-Raphson (NR) algorithms which are mainly applied in the statistic and machine learning communities, and the ensemble Kalman filter (EnKF). The methods are derived using a Bayesian approach for a hidden Markov model. They are applied to infer deterministic and stochastic physical parameters from noisy observations in coarse-grained dynamical models. Numerical experiments are conducted using the Lorenz-96 dynamical system with one and two scales as a proof-of-concept. The imperfect coarse-grained model is modelled through a one-scale Lorenz-96 system in which a stochastic parameterization is incorpored to represent the small-scale dynamics. The algorithms are able to identify an optimal stochastic parameterization with a good accuracy under moderate observational noise. The proposed EnKF-EM and EnKF-NR are promising statistical learning methods for developing stochastic parameterizations in high-dimensional geophysical models.
Using the COBE/DMR data as a test-bed for normality assessments
Creators: name: Aghanim, N.
name: Forni, O.
name: Bouchet, F. R.
Publisher: name: arXiv
Year: 2000
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: A very important property of a statistical distribution is to know whether it obeys Gaussian statistics or not. On the one hand, it is of paramount importance in the context of CMB anisotropy studies, since deviations from a Gaussian distribution could indicate the presence of uncorrected measurement systematics, of remaining fluctuations contributed by foregrounds, of deviations from the simplest models of inflation or of topological defects. On the other hand, looking for a non-Gaussian signal is a very ill-defined task and performances of various assessment methods may differ widely when applied in different contexts. In previous studies, we introduced a sensitive wavelet-based method which we apply here to the COBE/DMR data set, already extensively studied, using different approaches. This provides an objective way to compare methods. It turns out that our multi-scale wavelet decomposition is a sensitive method. Yet we show that the results are rather sensitive to the choice of both the decomposition scheme and the wavelet basis. We find that the detection of the non-Gaussian signature is ``marginal'' with a probability of at most 99%.
description: 6 pages, 1 figure, accepted for publication in Astronomy & astrophysics
Lettre de Francesco Ginanni à Jean-François Séguier, 1756-01-04
Creators: name: Ginanni, Francesco
name: Ginanni, Francesco
Publisher: name: NAKALA - https://nakala.fr (Huma-Num - CNRS)
publisherIdentifier: https://ror.org/04ces3204
publisherIdentifierScheme: ROR
Year: 2022
Subjects: Histoire naturelle

description: [addition ms : Viro clarissimo Io. Francesco Seguiero Societas Litteraria Ravennatensis S.]
[texte imprimé]

Te vero inter caeteros illustriores litterarum amatores atque de illis benemeritos, orat atque obtestatus societas nostra, vir cl., ut de promptuarii tuis omni eruditionum genere refertissimis, si quae urbem hanc, atque ecclesiam respiciant, nobis humanissime gratificeris. Vale.
IV Idas januarias MDCCLVI Ravenna
Societatis Litterariae Raven. Soc.
Franciscus Ginannius
description: Source: [établissement de conservation] Nîmes, Bibliothèque Carré d'Art [cote] ms. 143, fol. 123
Hierarchical Pricing Game for Balancing the Charging of Ride-Hailing Electric Fleets
Creators: name: Maljkovic, Marko
name: Nilsson, Gustav
name: Geroliminis, Nikolas
Publisher: name: arXiv
Year: 2022
Subjects: subject: Systems and Control (eess.SY)
subject: FOS: Electrical engineering, electronic engineering, information engineering

description: Due to the ever-increasing popularity of ride-hailing services and the indisputable shift towards alternative fuel vehicles, the intersection of the ride-hailing market and smart electric mobility provides an opportunity to trade different services to achieve societal optimum. In this work, we present a hierarchical, game-based, control mechanism for balancing the simultaneous charging of multiple ride-hailing fleets. The mechanism takes into account sometimes conflicting interests of the ride-hailing drivers, the ride-hailing company management, and the external agents such as power-providing companies or city governments that will play a significant role in charging management in the future. The upper-level control considers charging price incentives and models the interactions between the external agents and ride-hailing companies as a Reverse Stackelberg game with a single leader and multiple followers. The lower-level control motivates the revenue-maximizing drivers to follow the company operator's requests through surge pricing and models the interactions as a single leader, multiple followers Stackelberg game. We provide a pricing mechanism that ensures the existence of a unique Nash equilibrium of the upper-level game that minimizes the external agent's objective at the same time. We provide theoretical and experimental robustness analysis of the upper-level control with respect to parameters whose values depend on sensitive information that might not be entirely accessible to the external agent. For the lower-level algorithm, we combine the Nash equilibrium of the upper-level game with a quadratic mixed integer optimization problem to find the optimal surge prices. Finally, we illustrate the performance of the control mechanism in a case study based on real taxi data from the city of Shenzhen in China.
Parâmetros para codificação das instituições responsáveis pelos locais de atendimento emergencial nas enchentes do Rio Grande do Sul, Brazil, 2024
Creators: name: Schabbach, Letícia Maria
name: Ramos, Marília Patta
Publisher: name: Zenodo
Year: 2024
Subjects: Abrigos de pessoas e animais.
Instituições responsáveis pelo espaço físico e instalações.
Enchentes. Rio Grande do Sul. Brasil.
2024

description: Trata-se de um instrumento que apresenta parâmetros para codificar as subcategorias e categorias das instituições responsáveis pelos abrigos de pessoas, animais, centros de coleta e distribuição de doações, cozinhas solidárias, criadas durante as cheias no estado do Rio Grande do Sul, Brasil, entre abril e maio de 2024.
Ising (anti-)ferromagnet on dynamical triangulations and quadrangulations
Creators: name: Johnston, D.
Publisher: name: arXiv
Year: 1993
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We write down matrix models for Ising spins with zero external field on the vertices of dynamical triangulated random surfaces (DTRS) and dynamically quadrangulated random surfaces (DQRS) and compare these with the standard matrix model approach which places the spins on the dual $ϕ^3$ and $ϕ^4$ graphs. We show that the critical temperatures calculated in the DTRS and DQRS models agree with those deduced from duality arguments in the standard approach. Using the DQRS model we observe that the Ising antiferromagnet still undergoes a phase transition to a Neel (checkerboard) ordered ground state which is absent because of frustration in the other cases.
description: 5 pages, latex
Search for spatial coincidence between IceCube neutrinos and radio pulsars
Creators: name: Pasumarti, Vibhavasu
name: Desai, Shantanu
Publisher: name: arXiv
Year: 2022
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: We search for a spatial association between radio pulsars and ultra-high energy neutrinos using the publicly available IceCube point source neutrino events catalog. For this purpose we use the unbinned maximum likelihood method to search for a statistically significant excess from each of the pulsars in the ATNF catalog. We do not find any pulsars with detection significance much higher than that expected from a Gaussian distribution, Therefore, we conclude that none of the currently known pulsars contribute to the diffuse neutrino flux detected by IceCube.
description: 5 pages, 2 figures. Accepted for publication in JCAP
Habit formation following routine-based versus time-based cue planning: A randomized controlled trial
Creators: name: Keller, Jan
name: Kwasnicka, Dominika
name: Klaiber, Patrick
name: Sichert, Lena
name: Lally, Phillippa
name: Fleig, Lena
Publisher: name: Freie Universität Berlin
Year: 2021
Subjects: subject: automaticity
subject: habit formation
subject: multilevel model
subject: nutrition
subject: plan enactment
subject: randomized controlled trial
subject: 100 Philosophie und Psychologie::150 Psychologie::150 Psychologie

description: Objectives Habit formation has been identified as one of the key determinants of behaviour change. To initiate habit formation, self-regulation interventions can support individuals to form a cue-behaviour plan and to repeatedly enact the plan in the same context. This randomized controlled trial aimed to model habit formation of an everyday nutrition behaviour and examined whether habit formation and plan enactment differ when individuals plan to enact their behaviour in response to a routine-based versus time-based cue. Design Following a baseline assessment, N = 192 adults (aged 18–77 years) were randomly assigned to a routine-based cue or a time-based cue planning intervention, in which they selected an everyday nutrition behaviour and linked it to a daily routine or a time cue. Methods Participants responded to daily questionnaires over 84 days assessing plan enactment and the behaviour’s automaticity (as an indicator of habit formation). Multilevel models with days nested in participants were fitted. Results As indicated by asymptotic curves, it took a median of 59 days for participants who successfully formed habits to reach peak automaticity. Group-level analyses revealed that both routine-based and time-based cue planning led to increases in automaticity and plan enactment, but no between-condition differences were found. Repeated plan enactment was a key predictor for automaticity. Conclusions Linking one’s nutrition behaviour to a daily routine or a specific time was similarly effective for habit formation. Interventions should encourage persons to repeatedly carry out their planned behaviour in response to the planned cue to facilitate habit formation.
UNFIS: A Novel Neuro-Fuzzy Inference System with Unstructured Fuzzy Rules for Classification
Creators: name: Salimi-Badr, Armin
Publisher: name: arXiv
Year: 2022
Subjects: subject: Artificial Intelligence (cs.AI)
subject: Machine Learning (cs.LG)
subject: FOS: Computer and information sciences

description: An important constraint of Fuzzy Inference Systems (FIS) is their structured rules defined based on evaluating all input variables. Indeed, the length of all fuzzy rules and the number of input variables are equal. However, in many decision-making problems evaluating some conditions on a limited set of input variables is sufficient to decide properly (unstructured rules). Therefore, this constraint limits the performance, generalization, and interpretability of the FIS. To address this issue, this paper presents a neuro-fuzzy inference system for classification applications that can select different sets of input variables for constructing each fuzzy rule. To realize this capability, a new fuzzy selector neuron with an adaptive parameter is proposed that can select input variables in the antecedent part of each fuzzy rule. Moreover, in this paper, the consequent part of the Takagi-Sugeno-Kang FIS is also changed properly to consider only the selected set of input variables. To learn the parameters of the proposed architecture, a trust-region-based learning method (General quasi-Levenberg-Marquardt (GqLM)) is proposed to minimize cross-entropy in multiclass problems. The performance of the proposed method is compared with some related previous approaches in some real-world classification problems. Based on these comparisons the proposed method has better or very close performance with a parsimonious structure consisting of unstructured fuzzy.
The motion of two masses coupled to a massive spring
Creators: name: Santos, F C
name: Coutinho, Y A
name: Ribeiro-Pinto, L
name: Tort, A C
Publisher: name: arXiv
Year: 2006
Subjects: subject: Classical Physics (physics.class-ph)
subject: FOS: Physical sciences

description: We discuss the classical motion of a spring of arbitrary mass coupled to two arbitrary massive blocks attached at its ends. A general approach to the problem is presented and some general results are obtained. Examples for which a simple elastic function can be inferred are discussed and the normal modes and normal frequencies obtained. An approximation procedure to the evaluation of the normel frequencies in the case of uniform elastic function and mass density is also discussed.
description: Standard Latex file plus three eps figures