cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Additional file 1 of Cerebellar tDCS combined with augmented reality treadmill for freezing of gait in Parkinson’s disease: a randomized controlled trial
Creators: name: Pisano, Fabrizio
name: Mellace, Denise
name: Fugatti, Ambra
name: Aiello, Edoardo Nicolò
name: Diotti, Silvia
name: Curti, Beatrice
name: Giust, Alessandra
name: Marfoli, Angelica
name: Perin, Cecilia
name: De Sandi, Angelica
name: Alimonti, Dario
name: Priori, Alberto
name: Ferrucci, Roberta
Publisher: name: figshare
Year: 2024
Subjects: subject: Space Science
subject: Medicine
subject: Neuroscience
subject: Physiology
subject: FOS: Biological sciences
subject: Biotechnology
subject: Sociology
subject: FOS: Sociology
subject: Mental Health

description: Supplementary Material 1
Renormalization of the axial current operator in dimensional regularization at four-loop in QCD
Creators: name: Chen, Long
name: Czakon, Michał
Publisher: name: arXiv
Year: 2021
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We provide the renormalization constants of the axial current operators, both singlet and non-singlet, in dimensional regularization up to four-loop order in QCD, determined using the off-shell Ward-Takahashi identity for an axial current with a non-anticommuting $γ_5$. A possible application of the result for the singlet axial current operator is the extraction of the non-decoupling mass logarithms in the axial quark form factors.
description: matched with the published version in JHEP
Femtoscopy in hadron and lepton collisions: RHIC results and world systematics
Creators: name: Chajȩcki, Zbigniew
Publisher: name: arXiv
Year: 2009
Subjects: subject: Nuclear Experiment (nucl-ex)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: Femtoscopic measurements at a variety of facilities have established a clear dependence of spatial scales with event multiplicity and particle transverse mass ($m_T$) in heavy ion collisions from $\sqrt(s_{NN}) \sim 2-200 GeV$. The $m_T$-dependence is thought to arise from collective, explosive flow of the system, as probed by independent measurements, while the multiplicity dependence reflects the increased spatial extent of the final state with decreasing impact parameter. Qualitatively similar dependences have been reported from high energy hadron and lepton collisions, where the conceptual validity of an impact parameter or collective flow are less clear. We focus on results from elementary particle collisions, identify trends seen in the experimental data and compare them to those from heavy ion collisions.
description: Talk given at WPCF (Workshop on Particle Correlations and Femtoscopy) 2008, Krakow, Poland. Proceedings to be published in Acta Physica Polonica B; 18 pages, 10 figures;
title: Embolizacion percutánea con onyx por punción directa de tumores hipervasculares en la región cervical
Creators: name: Rodriguez Cabillas, Maria Eugenia
Publisher: name: Sociedad Española de Radiología Médica
Year: 2014
Subjects: subject: Embolisation
subject: Percutaneous
subject: Interventional vascular
subject: Vascular

description: Objetivo docente
Revisión del tema
Conclusiones
Bibliografía
description: Objetivo docente:
Describir la técnica de embolización percutánea mediante onyx por punción directa de la lesión,
analizar la experiencia de nuestra unidad con la técnica y las complicaciones...
Bornella simplex Eliot 1904
Creators: name: Pola, Marta
name: Rudman, William B.
name: Gosliner, Terrence M.
Publisher: name: Zenodo
Year: 2009
Subjects: Biodiversity
Taxonomy
Animalia
Mollusca
Gastropoda
Nudibranchia
Bornellidae
Bornella
Bornella simplex

description: Bornella simplex Eliot, 1904 Bornella simplex Eliot, 1904: 103 –104, pl. 4, fig. 5 c. Material examined: No specimens have been recognized as this species since its original description. Remarks: Bornella simplex is different from the rest of the species of the genus in having short and simple anterior tentacles. Eliot (1904) described this species from a 12 mm specimen from East Coast of Zanzibar. He said that the animal was transparent with an orange network on the back but without orange rings on the tips of the dorsolateral processes. He also described the rhinophore sheaths as bearing six short digitations and a larger rounded knob behind. The remaining description is poorly detailed and the reproductive system was not described. Thus, the diagnostic feature for this species is the short and simple oral tentacle, but in his original description, Eliot stated that this character could be a monstrosity since is not uncommon in nudibranchs for external processes to remain undeveloped. No picture of the animal or type specimen is available. No records of this species have been found since the original description. The validity of this species cannot be determined on the available information.
description: Published as part of Pola, Marta, Rudman, William B. & Gosliner, Terrence M., 2009, Systematics and preliminary phylogeny of Bornellidae (Mollusca: Nudibranchia: Dendronotina) based on morphological characters with description of four new species, pp. 1-57 in Zootaxa 1975 on page 16, DOI: 10.5281/zenodo.185130
description: {"references": ["Eliot, C. (1904) On some nudibranchs from east Africa and Zanzibar. Part V. Proceedings of the Zoological Society of London, 2, 83 - 105, pls. 3 - 4."]}
Additional file 1 of Arts, culture and sports engagement and self-rated health: a cross-sectional population-based study in southern Sweden
Creators: name: Lindström, Martin
name: Pirouzifard, Mirnabi
name: Jensen, Anita
Publisher: name: figshare
Year: 2024
Subjects: Medicine
Biotechnology
Biological Sciences not elsewhere classified
Cancer
Science Policy

description: Supplementary Material 1.
Snell's Law for Shear Zone Refraction in Granular Materials
Creators: name: Knudsen, H. A.
name: Bergli, J.
Publisher: name: arXiv
Year: 2009
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: Other Condensed Matter (cond-mat.other)
subject: FOS: Physical sciences

description: We present experiments on slow shear flow in a split-bottom linear shear cell, filled with layered granular materials. Shearing through two different materials separated by a flat material boundary is shown to give narrow shear zones, which refract at the material boundary in accordance with Snell's law in optics. The shear zone is the one that minimizes the dissipation rate upon shearing, i.e.a manifestation of the principle of least dissipation. We have prepared the materials as to form a granular lens. Shearing through the lens is shown to give a very broad shear zone, which corresponds to fulfilling Snell's law for a continuous range of paths through the cell.
description: 4 pages, 5 figures
On the short-range behavior of neutrino forces beyond the Standard Model: from $1/r^5$ to $1/r^4$, $1/r^2$, and $1/r$
Creators: name: Xu, Xun-jie
name: Yu, Bingrong
Publisher: name: arXiv
Year: 2021
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: The exchange of a pair of neutrinos between two objects, seperated by a distance $r$, leads to a long-range effective potential proportional to $1/r_{}^5$, assuming massless neutrinos and four-fermion contact interactions. In this paper, we investigate how this known form of neutrino-mediated potentials might be altered if the distance $r$ is sufficiently short, corresponding to a sufficiently large momentum transfer which could invalidate the contact interactions. We consider two possible scenarios to open up the contact interactions by introducing a $t$-channel or an $s$-channel mediator. We derive a general formula that is valid to describe the potential in all regimes as long as the external particles remain non-relativistic. In both scenarios, the potential decreases as $1/r_{}^5$ in the long-range limit as expected. In the short-range limit, the $t$-channel potential exhibits the Coulomb-like behavior (i.e. proportional to $1/r$), while the $s$-channel potential exhibits $1/r_{}^4$ and $1/r_{}^2$ behaviors.
description: 17 pages, 4 figures, more discussions and references added, version accepted by JHEP
title: Comparación de diferentes técnicas de imagen (ecografía, elastosonografía, TC y RM espectroscopia) en la detección de enfermedad hepática no alcohólica en pacientes con obesidad mórbida
Creators: name: Guzman Aroca, Florentina
Publisher: name: Sociedad Española de Radiología Médica
Year: 2014
Subjects: subject: Metabolic disorders
subject: Cirrhosis
subject: Comparative studies
subject: Outcomes analysis
subject: CT
subject: MR
subject: Elastography
subject: Abdomen

description: Objetivos
Material y método
Resultados
Conclusiones
Bibliografía
description: Objetivos:
- Evaluar el hígado mediante sonoelastografía en pacientes remitidos de la consulta de obesidad mórbida,
previamente a la intervención quirúrgica. - Objetivar las ventajas y limitaciones de la sonoelastografía cuantitativa en la...
A Framework to Manage the Complex Organisation of Collaborating: Its Application to Autonomous Systems
Creators: name: Johnson, Peter
name: Hourizi, Rachid
name: Carrigan, Neil
name: Forbes, Nick
Publisher: name: arXiv
Year: 2010
Subjects: subject: Multiagent Systems (cs.MA)
subject: FOS: Computer and information sciences

description: In this paper we present an analysis of the complexities of large group collaboration and its application to develop detailed requirements for collaboration schema for Autonomous Systems (AS). These requirements flow from our development of a framework for collaboration that provides a basis for designing, supporting and managing complex collaborative systems that can be applied and tested in various real world settings. We present the concepts of "collaborative flow" and "working as one" as descriptive expressions of what good collaborative teamwork can be in such scenarios. The paper considers the application of the framework within different scenarios and discuses the utility of the framework in modelling and supporting collaboration in complex organisational structures.
Measurements of the ion concentrations and conductivity over the Arabian Sea during the ARMEX
Creators: name: Siingh, Devendraa
name: Pawar, S. D.
name: Gopalakrishnan, V.
name: Kamra, A. K.
Publisher: name: arXiv
Year: 2009
Subjects: subject: Geophysics (physics.geo-ph)
subject: Atmospheric and Oceanic Physics (physics.ao-ph)
subject: FOS: Physical sciences

description: Measurements of the small-, intermediate-, and large-ion concentrations and the atmospheric electric conductivity of both polarities have been made over the Arabian Sea on four cruises of ORV Sagarkanya during the Arabian Sea Monsoon Experiment (ARMEX)during the monsoon and pre-monsoon seasons of 2002 and 2003. Seasonally averaged values of the total as well as polar conductivity are much higher during the monsoon than pre-monsoon season. Surprisingly, however, the concentration of small ions are less and those of large and intermediate ions are more during the monsoon than pre-monsoon season. The diurnal variations observed during the pre-monsoon season show that the nighttime small ion concentrations are about an order of magnitude higher than their daytime values. On the contrary, the daytime concentrations of the intermediate and large ions are much higher than those of their nighttime values. No such diurnal variations in ion concentrations are observed in monsoon season. Also examined are the variations in ion concentrations of different categories with distance from the coastline in different seasons and the ion-concentration changes associated with the precipitation of various types that occurred over ORV Sagarkanya. It is sufficient to invoke the ion-aerosol attachment process to explain our pre-monsoon observations. However, the generation of highly charged large ions by the bubble-breaking process caused by the wave breaking due to strong southwesterly surface winds ten to twenty meter per second over the Arabian Sea is postulated to explain the monsoon season observations.
description: 35 pages, 8 figures
ODDIY TAQSIMOTNI MODELLASHTIRISH. KO'P O'LCHOVLI IZOTROP VEKTOR.
Creators: name: Tojiyev, T.
name: Rafiqjonova, Mohiraxon
Publisher: name: Zenodo
Year: 2023

description: Bu ishda izotrop vektorning xususiyatlariga asoslangan normal taqsimotni modellashtirishning taniqli usulini ko'rib chiqamiz.
Galois symmetries in Super Yang-Mills Theories
Creators: name: Ferrari, Frank
Publisher: name: arXiv
Year: 2009
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: Classifying the phases of gauge theories is hindered by the lack of local order parameters. In particular, the standard Wilson's and 't Hooft's non-local order parameters are known to be insufficient to explain the existence of the plethora of phases that are found in supersymmetric gauge theories. Motivated by these observations, we reanalyze the concept of gauge symmetry breaking using Galois theory. Unlike the ordinary classical notion of unbroken gauge group, the Galois symmetry makes sense in the full quantum theory and must be a phase invariant. The algebraic structure underlying the space of vacua of supersymmetric gauge theories, that we have developed recently, is precisely designed to allow a rigorous mathematical implementation of these ideas.
description: 30 pages; v2: typos corrected
Make your research FAIR - Geochemical data
Creators: name: Schamuells, Noah
name: Dorado, Olaya
name: Geyer, Adelina
name: Fernández Turiel, Jose Luis
Publisher: name: Zenodo
Year: 2025
Subjects: FAIR Principles
Geoscience

description: The FAIR Principles (Findable, Accessible, Interoperable, Reusable) are guidelines designed to improve the management and use of scientific data, ensuring they are easy to find, accessible to all, compatible with other data, and reusable in various contexts. In the field of Geology and Earth Sciences, these principles should be applied throughout all phases of scientific research, from sample collection to publication of results in scientific journals.

This document provides guidance on geochemical data management within the framework of the FAIR principles. It outlines the key steps to ensure the traceability, accessibility, and reusability of data generated in geochemistry laboratories, including:

Selection or creation of analytical methods and assignment of the corresponding DOI.

Generation of datasets in durable formats linked to sample IGSNs.

Storage of data in trusted repositories with standardized metadata.

Creation of DOIs for each dataset and their proper citation in scientific publications.

This material has been developed with the support of the EPOS-SpN RED2022-134516-E Grant, funded by MICIU/AEI/10.13039/501100011033.
Cohomological classification of Ann-functors
Creators: name: Quang, Nguyen Tien
name: Hanh, Dang Dinh
Publisher: name: arXiv
Year: 2009
Subjects: subject: Category Theory (math.CT)
subject: FOS: Mathematics
subject: 18D10, 13D03

description: Regular Ann-functor classification problem has been solved with Shukla cohomology. In this paper, we would like to present a solution to the above problem in the general case and in the case of strong Ann-functors with, respectively, Mac Lane cohomology and Hochschild cohomology.
description: 11 pages
Additional file 2 of The anti-inflammatory effect of a magnoliae cortex and Zea mays L. extract mixture in a canine model of ligature-induced periodontitis
Creators: name: Kim, Se Eun
name: Hwang, Sun Young
name: Park, Yong Ho
name: Davis, William C.
name: Park, Kun Taek
Publisher: name: figshare
Year: 2024
Subjects: subject: Biochemistry
subject: Space Science
subject: Medicine
subject: Physiology
subject: FOS: Biological sciences
subject: Chemical Sciences not elsewhere classified
subject: Ecology
subject: Immunology
subject: FOS: Clinical medicine
subject: Biological Sciences not elsewhere classified

description: Supplementary Material 2
Fluid dynamic analysis and modelling of industrial chemical equipment
Creators: name: Coroneo, Mirella <1982>
Publisher: name: Alma Mater Studiorum - Università di Bologna
Year: 2011
Subjects: ING-IND/25 Impianti chimici

description: The research is aimed at contributing to the identification of reliable fully predictive Computational Fluid Dynamics (CFD) methods for the numerical simulation of equipment typically adopted in the chemical and process industries. The apparatuses selected for the investigation, specifically membrane modules, stirred vessels and fluidized beds, were characterized by a different and often complex fluid dynamic behaviour and in some cases the momentum transfer phenomena were coupled with mass transfer or multiphase interactions.
Firs of all, a novel modelling approach based on CFD for the prediction of the gas separation process in membrane modules for hydrogen purification is developed. The reliability of the gas velocity field calculated numerically is assessed by comparison of the predictions with experimental velocity data collected by Particle Image Velocimetry, while the applicability of the model to properly predict the separation process under a wide range of operating conditions is assessed through a strict comparison with permeation experimental data. 
Then, the effect of numerical issues on the RANS-based predictions of single phase stirred tanks is analysed. The homogenisation process of a scalar tracer is also investigated and simulation results are compared to original passive tracer homogenisation curves determined with Planar Laser Induced Fluorescence. The capability of a CFD approach based on the solution of RANS equations is also investigated for describing the fluid dynamic characteristics of the dispersion of organics in water. 
Finally, an Eulerian-Eulerian fluid-dynamic model is used to simulate mono-disperse suspensions of Geldart A Group particles fluidized by a Newtonian incompressible fluid as well as binary segregating fluidized beds of particles differing in size and density. The results obtained under a number of different operating conditions are compared with literature experimental data and the effect of numerical uncertainties on axial segregation is also discussed.
Overview of Issues Surrounding Strangeness in the Nucleon
Creators: name: Thomas, A. W.
Publisher: name: arXiv
Year: 2009
Subjects: subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: The calculation of the strangeness content of the nucleon and its experimental verification is a fundamental step in establishing non-perturbative QCD as the correct theory describing the structure of hadrons. It holds a role in QCD analogous to the correct calculation of the Lamb shift in QED. We review the latest developments in the vector and scalar matrix elements of the strange quarks in the proton, where there has recently been considerable progress.
description: Invited presentation at the 10th Conference on the Intersection of Nuclear and Particle Physics, San Diego, May 26-May 30, 2009
Additional file 1 of Assessment of antioxidant properties in selected pigmented and non-pigmented rice (Oryza sativa L.) germplasm and determination of its association with Rc gene haplotypes
Creators: name: Rebeira, Srikanthi
name: Jayatilake, Dimanthi
name: Prasantha, Rohitha
name: Kariyawasam, Thamali
name: Suriyagoda, Lalith
Publisher: name: figshare
Year: 2024
Subjects: subject: Medicine
subject: Genetics
subject: FOS: Biological sciences
subject: Physiology
subject: Environmental Sciences not elsewhere classified
subject: Chemical Sciences not elsewhere classified
subject: Ecology
subject: Biological Sciences not elsewhere classified
subject: Infectious Diseases
subject: FOS: Health sciences
subject: Plant Biology

description: Supplementary Material 1
Weakly-interacting Bose-Bose mixtures from the functional renormalisation group
Creators: name: Isaule, Felipe
name: Morera, Ivan
Publisher: name: arXiv
Year: 2021
Subjects: subject: Quantum Gases (cond-mat.quant-gas)
subject: FOS: Physical sciences

description: We provide a detailed presentation of the functional renormalisation group (FRG) approach for weakly-interacting Bose-Bose mixtures, including a complete discussion on the RG equations. To test this approach, we examine thermodynamic properties of balanced three-dimensional Bose-Bose gases at zero and finite temperatures and find a good agreement with related works. We also study ground-state energies of repulsive Bose polarons by examining mixtures in the limit of infinite population imbalance. Finally, we discuss future applications of the FRG to novel problems in Bose-Bose mixtures and related systems.
description: 36 pages, 9 figures. Accepted version
Playing relativistic billiards beyond graphene
Creators: name: Sadurni, Emerson
name: Seligman, Thomas
name: Mortessagne, Fabrice
Publisher: name: arXiv
Year: 2010
Subjects: subject: Quantum Physics (quant-ph)
subject: Other Condensed Matter (cond-mat.other)
subject: FOS: Physical sciences

description: The possibility of using hexagonal structures in general and graphene in particular to emulate the Dirac equation is the basis of our considerations. We show that Dirac oscillators with or without restmass can be emulated by distorting a tight binding model on a hexagonal structure. In a quest to make a toy model for such relativistic equations we first show that a hexagonal lattice of attractive potential wells would be a good candidate. First we consider the corresponding one-dimensional model giving rise to a one-dimensional Dirac oscillator, and then construct explicitly the deformations needed in the two-dimensional case. Finally we discuss, how such a model can be implemented as an electromagnetic billiard using arrays of dielectric resonators between two conducting plates that ensure evanescent modes outside the resonators for transversal electric modes, and describe an appropriate experimental setup.
description: 23 pages, 8 figures. Submitted to NJP
Estimating the cosmological constant from shadows of Kerr--de Sitter black holes
Creators: name: Afrin, Misba
name: Ghosh, Sushant G.
Publisher: name: arXiv
Year: 2021
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: The Event Horizon Telescope collaboration has revealed the first direct image of a black hole, as per the shadow of a Kerr black hole of general relativity. However, other Kerr-like rotating black holes of modified gravity theories cannot be ignored, and they are essential as they offer an arena in which these theories can be tested through astrophysical observation. This motivates us to investigate asymptotically de Sitter rotating black holes wherein interpreting the cosmological constant $Λ$ as the vacuum energy leads to a deformation in the vicinity of a black hole -- new Kerr--de Sitter solution, which has a richer geometric structure than the original one. We derive an analytical formula necessary for the shadow of the new Kerr--de Sitter black holes and then visualize the shadow of black holes for various parameters for an observer at given coordinates $(r_0, θ_0)$ in the domain $(r_0,\; r_c)$ and estimate the cosmological constant $Λ$ from its shadow observables. The shadow observables of the new Kerr--de Sitter black holes significantly deviate from the corresponding observables of the Kerr--de Sitter black hole over an appreciable range of the parameter space. Interestingly, we find a finite parameter space for ($Λ$, $a$) where the observables of the two black holes are indistinguishable.
description: 10 figures, 1 table. Matched to the published version
Sakurai's Object: characterising the near-infrared CO ejecta between 2003 and 2007
Creators: name: Worters, H L.
name: Rushton, M. T.
name: Eyres, S. P. S.
name: Geballe, T. R.
name: Evans, A.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We present observations of Sakurai's Object obtained at 1-5um between 2003 and 2007. By fitting a radiative transfer model to an echelle spectrum of CO fundamental absorption features around 4.7um, we determine the excitation conditions in the line-forming region. We find 12C/13C~3.5, consistent with CO originating in ejecta processed by the very late thermal pulse, rather than in the pre-existing planetary nebula. We demonstrate the existence of 2.2e-6
description: 6 pages, 3 figures, 2 tables
title: An Investigation into the Effects of Border Carbon Adjustments on the Canadian Economy
Creators: name: Chen, Y.-H. Henry
name: Jebeli, Hossein
name: Johnston, Craig
name: Paltsev, Sergey
name: Tremblay, Marie-Christine
Publisher: name: Bank of Canada
Year: 2023

description: This paper examines how border carbon adjustments (BCAs) may address the unintended consequences of uncoordinated global climate action, focusing on the economic implications for Canada. We investigate these implications under different BCA design features and by considering a coalition of countries and regions that adopt BCAs. We find that BCAs, in the form of import tariffs, reduce Canada’s carbon leakage to the rest of the world and improve its domestic and foreign competitiveness when Canada is part of a coalition of countries and regions that implement BCAs that includes the United States. We show that these results may change if Canada imposes BCAs on a different set of sectors than the rest of the coalition or includes export rebates and free emissions allowances to firms. When the United States is not part of the coalition, we show that Canada’s carbon leakage increases, domestic competitiveness dampens and foreign competitiveness improves. Compared with a case where no countries have BCAs, welfare improves in Canada if revenues from BCAs, in the form of import tariffs, are transferred to households. This finding holds regardless of the United States’ participation in the coalition.
description: Notre étude examine comment les ajustements carbone aux frontières peuvent pallier les conséquences imprévues d’une action pour le climat non coordonnée à l’échelle mondiale, plus particulièrement les incidences économiques pour le Canada. Nous étudions ces effets en fonction de diverses caractéristiques des ajustements carbone et en tenant compte d’une coalition de pays et de régions les adoptant. Nous constatons que les ajustements carbone aux frontières, sous la forme de droits de douane, réduisent les fuites de carbone du Canada vers le reste du monde et améliorent la compétitivité intérieure et étrangère du Canada lorsqu’il fait partie d’une coalition de pays et régions comprenant les États-Unis qui mettent en œuvre ce type d’ajustements. Nous démontrons que les résultats peuvent changer si le Canada impose des ajustements carbone dans un ensemble de secteurs différents de ceux du reste de la coalition, ou s’il inclut des ristournes d’exportation et des allocations gratuites d’unités d’émission aux entreprises. Nous montrons que lorsque les États-Unis ne font pas partie de la coalition, les fuites de carbone du Canada augmentent, la compétitivité intérieure diminue et la compétitivité étrangère s’améliore. Si l’on compare avec une situation où aucun pays n’a de mécanisme d’ajustement carbone aux frontières, le bien-être s’accroît au Canada si les revenus découlant de ces mesures, sous la forme de droits de douane, sont transférés aux ménages. Cette conclusion reste valide peu importe si les États-Unis font partie ou non de la coalition.
Physical model of PD behavior and relevant damage growth from micro-cavities in polyethylene-based material under AC voltage
Creators: name: Wang, Le <1983>
Publisher: name: Alma Mater Studiorum - Università di Bologna
Year: 2011
Subjects: ING-IND/33 Sistemi elettrici per l'energia

description: In the framework of developing defect-based life models, in which breakdown is explicitly associated with partial discharge (PD)-induced damage growth from a defect, ageing tests and PD measurements were carried out in the lab on polyethylene (PE) layered specimens containing artificial cavities. PD activity was monitored continuously during aging. A quasi-deterministic series of stages can be observed in the behavior of the main PD parameters (i.e. discharge repetition rate and amplitude). Phase-resolved PD patterns at various ageing stages were reproduced by numerical simulation which is based on a physical discharge model devoid of adaptive parameters. The evolution of the simulation parameters provides insight into the physical-chemical changes taking place at the dielectric/cavity interface during the aging process. PD activity shows similar time behavior under constant cavity gas volume and constant cavity gas pressure conditions, suggesting that the variation of PD parameters may not be attributed to the variation of the gas pressure. Brownish PD byproducts, consisting of oxygen containing moieties, and degradation pits were found at the dielectric/cavity interface. It is speculated that the change of PD activity is related to the composition of the cavity gas, as well as to the properties of dielectric/cavity interface.
Studying Maximum Information Leakage Using Karush-Kuhn-Tucker Conditions
Creators: name: Chen, Han
name: Malacaria, Pasquale
Publisher: name: arXiv
Year: 2009
Subjects: subject: Cryptography and Security (cs.CR)
subject: Information Theory (cs.IT)
subject: Logic in Computer Science (cs.LO)
subject: Programming Languages (cs.PL)
subject: FOS: Computer and information sciences

description: When studying the information leakage in programs or protocols, a natural question arises: "what is the worst case scenario?". This problem of identifying the maximal leakage can be seen as a channel capacity problem in the information theoretical sense. In this paper, by combining two powerful theories: Information Theory and Karush-Kuhn-Tucker conditions, we demonstrate a very general solution to the channel capacity problem. Examples are given to show how our solution can be applied to practical contexts of programs and anonymity protocols, and how this solution generalizes previous approaches to this problem.
Black hole thermodynamics is extensive with variable Newton constant
Creators: name: Wang, Tao
name: Zhao, Liu
Publisher: name: arXiv
Year: 2021
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: Inspired by the recent studies on the thermodynamics of AdS black holes in the restricted phase space formalism, we propose a similar formalism for the thermodynamics of non-AdS black holes with variable Newton constant. It is shown that, by introducing the new variables $N,μ$, where $N$ is proportional to the inverse Newton constant and $μ$ its conjugate variable, referred to as the chemical potential, the black hole thermodynamics can be formulated in a form which is consistent with the standard extensive thermodynamics for open macroscopic systems, with the first law and the Euler relation hold simultaneously. This formalism has profound implications, in particular, the mass is a homogeneous function of the first order in the extensive variables and the intensive variables are zeroth order homogeneous functions. The chemical potential is shown to be closely related to the Euclidean action evaluated at the black hole configuration.
description: 11 pages. v3: More clarifications and new references
Predictions from Star Formation in the Multiverse
Creators: name: Bousso, Raphael
name: Leichenauer, Stefan
Publisher: name: arXiv
Year: 2009
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We compute trivariate probability distributions in the landscape, scanning simultaneously over the cosmological constant, the primordial density contrast, and spatial curvature. We consider two different measures for regulating the divergences of eternal inflation, and three different models for observers. In one model, observers are assumed to arise in proportion to the entropy produced by stars; in the others, they arise at a fixed time (5 or 10 billion years) after star formation. The star formation rate, which underlies all our observer models, depends sensitively on the three scanning parameters. We employ a recently developed model of star formation in the multiverse, a considerable refinement over previous treatments of the astrophysical and cosmological properties of different pocket universes. For each combination of observer model and measure, we display all single and bivariate probability distributions, both with the remaining parameter(s) held fixed, and marginalized. Our results depend only weakly on the observer model but more strongly on the measure. Using the causal diamond measure, the observed parameter values (or bounds) lie within the central $2σ$ of nearly all probability distributions we compute, and always within $3σ$. This success is encouraging and rather nontrivial, considering the large size and dimension of the parameter space. The causal patch measure gives similar results as long as curvature is negligible. If curvature dominates, the causal patch leads to a novel runaway: it prefers a negative value of the cosmological constant, with the smallest magnitude available in the landscape.
description: 68 pages, 19 figures
Thermodynamics of Kerr-AdS black holes in the restricted phase space
Creators: name: Gao, Zeyuan
name: Kong, Xiangqing
name: Zhao, Liu
Publisher: name: arXiv
Year: 2021
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: The thermodynamics for Kerr-AdS black hole in four dimensions is revisited using the recently proposed restricted phase space formalism, which includes the central charge $C$ of the dual CFT and the chemical potential $μ$, but excludes the pressure and the conjugate volume, as thermodynamic variables. The Euler relation holds automatically, and the first order homogeneity of the mass and the zeroth order homogeneity of the intensive variables are made explicit. Thermodynamic processes involving each pair of conjugate variables are studied in some detail, with emphasis on the scaling properties of the equations of states. It turns out that the thermodynamic behavior of the Kerr-AdS black hole is very similar to that of the RN-AdS black hole studied earlier. In particular, it is found that, there is a first order supercritical phase equilibrium in the $T-S$ processes at fixed nonvanishing angular momentum, while at vanishing angular momentum or at fixed angular velocities, there is always a non-equilibrium transition from a small unstable black hole state to a large stable black hole state. Moreover, there is a Hawking-Page phase transition in the $μ-C$ processes. Due to the complicatedness of the Kerr metric, the exact critical point and the Hawking-Page temperature are worked out explicitly only in the slow rotating limit, however the characteristic thermodynamic properties do not rely on the slow rotating approximation.
description: 19 pages, 8 figures
Equivalence Principle and Field Quantization in Curved Spacetime
Creators: name: Kleinert, H.
Publisher: name: arXiv
Year: 2009
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: To comply with the equivalence principle, fields in curved spacetime can be quantized only in the neighborhood of each point, where one can construct a freely falling M i n k o w s k i frame with z e r o curvature. In each such frame, the geometric forces of gravity can be replaced by a selfinteracting spin-2 field, as proposed by Feynman in 1962. At a n y fixed distance $R$ from a black hole, the vacuum in each freely falling volume element acts like a thermal bath of all particles with Unruh temperature T_U=\hbar GM/2πc R^2. At the horizon R=2GM/c^2, the falling vacua show the Hawking temperature T_H=\hbar c^3/8πGMk_B.
description: 2 pages, extended and corrected
Bornella irvingi Edmunds and Preece 1996
Creators: name: Pola, Marta
name: Rudman, William B.
name: Gosliner, Terrence M.
Publisher: name: Zenodo
Year: 2009
Subjects: Biodiversity
Taxonomy
Animalia
Mollusca
Gastropoda
Nudibranchia
Bornellidae
Bornella
Bornella irvingi

description: Bornella irvingi Edmunds and Preece, 1996 (Fig. 1 G) Bornella n. sp. Preece, 1995: 358. Bornella irvingi Edmunds and Preece, 1996: 417 –419, figs. 5–6. Material Examined: Only two specimens are known. Both specimens are housed in the University Museum of Zoology, Cambridge (UMZC I 22000 a (Holotype) and UMZC I 22000 b (paratype)), but we were unable to examine the reproductive system of these specimens due to museum loan policy. Geographic Distribution: Currently known only from the Pitcairn Islands (Preece 1995; Edmunds & Preece 1996). Remarks: Bornella irvingi is known from two specimens, 16 and 11 mm long preserved, from the Pitcairn Islands. In the original description the external morphology of both specimens, and the radula and jaw of the smaller animal, were described. Since we were refused permission to borrow the specimens in order to examine the reproductive system, we can only paraphrase here the original description: Bornella irvingi has a white body, a black head, and the edge of the foot is bordered with an outer orange band, and an inner black band. The dorsal papillae and gills are white. The oral papillae and the papillae on the rhinophore sheaths are orange (Fig. 1 G). The dorsolateral processes usually found in the genus are replaced by four lanceolate papillae which are arranged in two pairs, placed approximately in the middle third of the body. Each papilla has two gills at its base, on the outer side. The rhinophores in the smaller specimen each have about 10 lamellae. Each rhinophore sheath has three anterior and anterolateral papillae on the upper edge, and a longer posterior papilla. The papillae are all unbranched. There are 13 oral papillae on each side of the mouth. The radula formula is 46 x 7.1. 7. The median tooth is broad and pointed with six or seven denticles on each side. The six or seven lateral teeth each have a lanceolate, pointed cusp arising from a rectangular plate. B. irvingi clearly differs from the other species of Bornella in its coloration and in the shape and smaller number of dorsolateral processes.
description: Published as part of Pola, Marta, Rudman, William B. & Gosliner, Terrence M., 2009, Systematics and preliminary phylogeny of Bornellidae (Mollusca: Nudibranchia: Dendronotina) based on morphological characters with description of four new species, pp. 1-57 in Zootaxa 1975 on pages 29-30, DOI: 10.5281/zenodo.185130
description: {"references": ["Edmunds, M. & Preece, R. (1996) A collection of opisthobranch mollusks from the Pitcairn Islands. Journal of Conchology, 35, 407 - 420.", "Preece, R. C. (1995) The composition and relationships of the marine molluscan fauna of the Pitcairn Islands. Biological Journal of the Linnean Society, 56, 339 - 358."]}
Dense cores in the Pipe Nebula: An improved core mass function
Creators: name: Rathborne, J. M.
name: Lada, C. J.
name: Muench, A. A.
name: Alves, J. F.
name: Kainulainen, J.
name: Lombardi, M.
Publisher: name: arXiv
Year: 2009
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: In this paper we derive an improved core mass function (CMF) for the Pipe Nebula from a detailed comparison between measurements of visual extinction and molecular-line emission. We have compiled a refined sample of 201 dense cores toward the Pipe Nebula using a 2-dimensional threshold identification algorithm informed by recent simulations of dense core populations. Measurements of radial velocities using complimentary C18O (1-0) observations enable us to cull out from this sample those 43 extinction peaks that are either not associated with dense gas or are not physically associated with the Pipe Nebula. Moreover, we use the derived C18O, central velocities to differentiate between single cores with internal structure and blends of two or more physically distinct cores, superposed along the same line-of-sight. We then are able to produce a more robust dense core sample for future follow-up studies and a more reliable CMF than was possible previously. We confirm earlier indications that the CMF for the Pipe Nebula departs from a single power-law like form with a break or knee at M ~ 2.7 +/- 1.3 Msun. Moreover, we also confirm that the CMF exhibits a similar shape to the stellar IMF, but is scaled to higher masses by a factor of ~4.5. We interpret this difference in scaling to be a measure of the star formation efficiency (22 +/- 8%). This supports earlier suggestions that the stellar IMF may originate more or less directly from the CMF.
description: 30 pages. 5 figures. Accepted by ApJ
Is the European Monetary System converging to integration?
Creators: name: Leydesdorff, Loet
name: Oomes, Nienke
Publisher: name: arXiv
Year: 2010
Subjects: subject: Data Analysis, Statistics and Probability (physics.data-an)
subject: FOS: Physical sciences

description: The emerging system at the European level can be conceptualized as a pattern of relations among member states that tends to be reproduced despite disturbances in individual trajectories. The Markov property is used as an indicator of systemness in the distribution. The individual trajectories of nations participating in the European Monetary System is assessed using an information theoretical model that is consistent with the Markov property in the multivariate case. Economic and monetary integration are analyzed using independent data sets. Increasing integration can be retrieved in both of these dimensions, notably since the currency crises of 1992 and 1993. However, the dynamics for countries which have strongly coupled their currency to the German Mark are different from those which did not. Additionally, developments in inflation and exchange rates at the European level are assessed in relation to global developments.
Waveguide-based single-pixel up-conversion infrared spectrometer
Creators: name: Zhang, Qiang
name: Langrock, Carsten
name: Fejer, M. M.
name: Yamamoto, Yoshihisa
Publisher: name: arXiv
Year: 2008
Subjects: subject: Instrumentation and Detectors (physics.ins-det)
subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: A periodically poled lithium niobate (PPLN) waveguide-based single-pixel up-conversion infrared spectrometer was demonstrated. Sum-frequency generation between a 1.5 micrometer band scanning pump laser and a 1.3 micrometer band signal generated visible radiation which was detected by a silicon single-photon detector. The noise equivalent power of the upconversion spectrometer was two-orders-of-magnitude lower than that of a commercial optical spectrum analyzer.
description: 5 pages, 3 figures
Two-center basis generator method calculations for Li$^{3+}$, C$^{3+}$ and O$^{3+}$ ion impact on ground state hydrogen
Creators: name: Leung, Anthony C. K.
name: Kirchner, Tom
Publisher: name: arXiv
Year: 2021
Subjects: subject: Atomic Physics (physics.atom-ph)
subject: FOS: Physical sciences

description: The two-center basis generator method is used to obtain cross sections for excitation, capture, and ionization in Li$^{3+}$, C$^{3+}$, and O$^{3+}$ collisions with ground-state hydrogen at projectile energies from 1 to 100 keV/u. The interaction of the C$^{3+}$ and O$^{3+}$ projectiles with the active electron is represented by a model potential. Comparisons of cross sections with previously reported data show overall good agreement while discrepancies in capture for C$^{3+}$ collisions at low energies are noted. The present results show that excitation and ionization are similar across the three collision systems, which indicates that these cross sections are mostly dependent on the net charge of the projectile only. The situation is different for the capture channel.
The role of community education coordinators in community schools in the lower mainland and Victoria, British Columbia
Creators: name: Gubbels, Joseph
Publisher: name: University of British Columbia
Year: 2010

description: The purpose of this study was to describe community education and to identify roles of community education coordinators. A literature review formed the basis of a research instrument which was devised and used to discover actual and ideal roles of coordinators in community schools in the Lower Mainland and Victoria, British Columbia. Five pilot studies were executed to establish exclusive role descriptors. The role descriptors established were: instructor, public relations person, community developer, administrator, learner and counselor. A token distribution procedure was employed to determine the amount of time 21 coordinators 'actually' spent and 'would like' to spend at each role during an average week. A questionnaire was developed to gather personal data; the Eysenck Personality Inventory was selected to measure two personality characteristics - extraversion and neuroticism. For reliability purposes the token distribution instrument was administered to a random sample of coordinators two months after the initial survey. The study described the personal characteristics of the coordinators, determined the mean percentage of time they actually spent and would like to spend at each role and determined the relationships among the roles and between the roles and personal characteristics. Community education is spreading rapidly in British Columbia and is in a constant state of change. The research instrument used in this study permits the jobs of the coordinators to be described and may be used as a basis for determining their role expectation, as a guide for dividing their work time, and to compare their activities with the average of other coordinators. The behaviours of the coordinators will inevitably depend, however, on the circumstances surrounding their job, their preparation for the job, and the attitudes of those involved in the programs that they provide.