cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Dynamical Computation on Coefficients of Electroweak Chiral Lagrangian from One-doublet and Topcolor-assisted Technicolor Models
Creators: name: Zhang, Hong-Hao
name: Jiang, Shao-Zhou
name: Wang, Qing
Publisher: name: arXiv
Year: 2007
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: Based on previous studies deriving the chiral Lagrangian for pseudo scalar mesons from the first principle of QCD, we derive the electroweak chiral Lagrangian and build up a formulation for computing its coefficients from one-doublet technicolor model and a schematic topcolor-assisted technicolor model. We find that the coefficients of the electroweak chiral Lagrangian for the topcolor-assisted technicolor model are divided into three parts: direct TC2 interaction part, TC1 and TC2 induced effective Z' particle contribution part, and ordinary quarks contribution part. The first two parts are computed in this paper and we show that the direct TC2 interaction part is the same as that in the one-doublet technicolor model, while effective Z' contributions are at least proportional to the p^2 order parameter β_1 in the electroweak chiral Lagrangian and typical features of topcolor-assisted technicolor model are that it only allows positive T and U parameters and the T parameter varies in the range 0\sim 1/(25α), the upper bound of T parameter will decrease as long as Z' mass become large. The S parameter can be either positive or negative depending on whether the Z' mass is large or small. The Z' mass is also bounded above and the upper bound depend on value of T parameter. We obtain the values for all the coefficients of the electroweak chiral Lagrangian up to order of p^4.
description: 52 pages, 15 figures
Projeto Multidisciplinar Linguística
Creators: name: de Sousa e Silva Filho, Luis
Publisher: name: Zenodo
Year: 2023
Subjects: radioamadorismo
código q
comunicação à distância

description: Por meio de um estudo sobre Linguagem realizado na cidade de Crateús, o autor conseguiu mostrar como os fatores sociais interferem na comunicação, principalmente quando envolve comunicação à distância. Várias formas de comunicação foram analisadas, inclusive o Código Q, código muito utilizado para comunicação via rádio.
Nonlinear dynamics in a synthetic momentum state lattice
Creators: name: An, Fangzhao Alex
name: Sundar, Bhuvanesh
name: Hou, Junpeng
name: Luo, Xi-Wang
name: Meier, Eric J.
name: Zhang, Chuanwei
name: Hazzard, Kaden R. A.
name: Gadway, Bryce
Publisher: name: arXiv
Year: 2021
Subjects: subject: Quantum Gases (cond-mat.quant-gas)
subject: Pattern Formation and Solitons (nlin.PS)
subject: Atomic Physics (physics.atom-ph)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: The scope of analog simulation in atomic, molecular, and optical systems has expanded greatly over the past decades. Recently, the idea of synthetic dimensions -- in which transport occurs in a space spanned by internal or motional states coupled by field-driven transitions -- has played a key role in this expansion. While approaches based on synthetic dimensions have led to rapid advances in single-particle Hamiltonian engineering, strong interaction effects have been conspicuously absent from most synthetic dimensions platforms. Here, in a lattice of coupled atomic momentum states, we show that atomic interactions result in large and qualitative changes to dynamics in the synthetic dimension. We explore how the interplay of nonlinear interactions and coherent tunneling enriches the dynamics of a one-band tight-binding model, giving rise to macroscopic self-trapping and phase-driven Josephson dynamics with a nonsinusoidal current-phase relationship, which can be viewed as stemming from a nonlinear band structure arising from interactions.
description: 6 pages, 3 figures, 3 pages of supplementary material
A parametrized version of the Borsuk Ulam theorem
Creators: name: Schick, Thomas
name: Simon, Robert
name: Spiez, Stanislav
name: Torunczyk, Henryk
Publisher: name: arXiv
Year: 2007
Subjects: subject: Algebraic Topology (math.AT)
subject: K-Theory and Homology (math.KT)
subject: FOS: Mathematics
subject: 91A05, 55N45, 55N05, 55N91

description: The main result of this note is a parametrized version of the Borsuk-Ulam theorem. We show that for a continuous family of Borsuk-Ulam situations, parameterized by points of a compact manifold W, its solution set also depends continuously on the parameter space W. Continuity here means that the solution set supports a homology class which maps onto the fundamental class of W. When W is a subset of Euclidean space, we also show how to construct such a continuous family starting from a family depending in the same way continuously on the points of the boundary of W. This solves a problem related to a conjecture which is relevant for the construction of equilibrium strategies in repeated two-player games with incomplete information. A new method (of independent interest) used in this context is a canonical symmetric squaring construction in Cech homology with coefficients in Z/2Z.
description: 15 pages, v2: typos corrected, v3: missing bibliography added, v4: completely rewritten version with (hopefully) much clearer exposition. Section on relation to game theory added. v5+v6: small typographical and stylistic correction, v7: reference to related work added. to appear in Bulletin of the London Math. Society
D3.2 Research Challenge Report v2
Creators: name: Fäth, Christian
name: Chiarcos, Christian
name: Gracia, Jorge
name: Bosque-Gil, Julia
name: Stearns, Bernardo
name: McCrae, John P.
name: Bobillo, Fernando
name: Cimiano, Philipp
name: Declerck, Thierry
name: Elahi, Mohammad Fazleh
name: Ell, Basil
name: Grosse, Julian
name: Hartung, Matthias
name: Lanau-Coronas, Marta
name: Martín-Chozas, Patricia
name: Montiel-Ponsoda, Elena
Publisher: name: Zenodo
Year: 2020

description: WP3 three research challenges are tackled by three respective tasks, each responsible for one software component:
 ● Task 3.1 , Prêt-à-LLOD Transform addresses the challenge of “ Transforming language resources and language data ”. Methodologies are developed for the transformation of language resources and language data into LLOD representations.
 ● Task 3.2 , Prêt-à-LLOD Link addresses the challenge of “ Linking conceptual and lexical data for language services ” . Novel (semi-)automatic methods are studied that aim at establishing links across multilingual LLOD datasets and models.
 ● Task 3.3 , Prêt-à-LLOD Workflows addresses the challenge to create “ Workflows for Portable and Scalable Semantic Language Services ” . A protocol, based on semantic markup, is developed to enable language services to be easily connected into multi-server workflows.
 The primary software component for data transformation is Fintan (Section 2.2), the Flexible Integrated Transformation and Annotation eNgineering platform. It allows to integrate RDF converters for various input formats and combine them with stream-based graph
 transformation for building complex transformation pipelines. For establishing complex links between multilingual resources at the conceptual level, lexical level, or between the conceptual and lexical levels (lexicalisation), we provide a set of services which we aim to
 deploy through the Naisc platform currently developed in the context of Task 3.2, as well as through a lexicalisation component (Section 3.3). We furthermore introduce Teanga (Section 4) as our primary workflow management tool for NLP services.
Erosion in the middle Himalaya, Nepal with a case study of the Phewa Valley
Creators: name: Ramsay, William James Hope
Publisher: name: University of British Columbia
Year: 2010

description: Data on erosion processes and other aspects of environmental change in the Himalaya are scarce and unreliable, and consequently policy decisions have been taken in a quantitative vacuum. Published estimates of denudation for large catchments in Nepal vary from 0.51 to 5.14 mm/yr, and indicate a dynamic geomorphological environment A review of the literature on erosion in Nepal revealed a consensus that: (1) mass wasting is the dominant hillslope process; (2) activity is seasonal, with virtually all failures occurring during the monsoon; (3) geological factors are the most important determinants of slope stability; (4) sediment delivery to channels is high; (5) little quantitative evidence exists to link landsliding to deforestation. Although few data exist, loss of forest cover does appear to be related to surface erosion and gullying, and a hypothesis linking the expansion of unmanaged, eroding areas to reduced nutrient subsidies from the forest is proposed. A reconnaissance survey of sediment production and transfer mechanisms in the 122 km² Phewa Valley in the Middle Mountains of Nepal identified a variety of mass movement processes. The commonest events were shallow translational failures on slopes of, typically, 36° to 45°, with volumes ≤1 x 10³ m³ and with recovery taking less than ten years. Larger slides occurred on slopes oversteepened by fluvial action. Flows developed in areas of weak rock and unfavourable structure, and were associated with groundwater discharge. Flow velocities accelerated during the monsoon. The highly fractured and deeply weathered zones around faults were the sites of "mass movement catchments", complex failures responsible for approximately 90% of all sediment production by mass wasting in the watershed. A first estimate of surface lowering by mass movement processes in the Phewa Valley is 2-3 mm/yr. Locally, surface erosion on overgrazed pasture may be 5-6 mm/yr. No data were available on soil losses from cultivated areas, and, similarly, losses due to shallow creep, gullying and solution remain unknown. The fluvial transport system in the valley bottom is unable to transport all the material with which it is supplied. Sediment yield to the lake was not calculated owing to insufficient data. Discharge estimates and intensity-duration-frequency analysis of rainfall records indicate that in Pokhara storms of 275 mm/day have a return period of approximately 10 years. The primary controls on mass movement processes in the Middle Himalaya of Nepal are geological and climatic, and therefore are not amenable to modification by man. However, surface erosion is a consequence of poor land management, and therefore can be controlled, given the right institutional environment
Science with the XEUS High Time Resolution Spectrometer
Creators: name: Barret, D.
name: Belloni, T.
name: Bhattacharyya, S.
name: Cackett, E.
name: Gilfanov, M.
name: Gigus, E.
name: Homan, J.
name: Mendez, M.
name: Miller, J. M.
name: Miller, M. C.
name: Mereghetti, S.
name: Paltani, S.
name: Poutanen, J.
name: Wilms, J.
name: Zdziarski, A. A.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: XEUS has been recently selected by ESA for an assessment study. XEUS is a large mission candidate for the Cosmic Vision program, aiming for a launch date as early as 2018. XEUS is a follow-on to ESA's Cornerstone X-Ray Spectroscopy Mission (XMM-Newton). It will be placed in a halo orbit at L2, by a single Ariane 5 ECA, and comprises two spacecrafts. The Silicon pore optics assembly of XEUS is contained in the mirror spacecraft while the focal plane instruments are contained in the detector spacecraft, which is maintained at the focus of the mirror by formation flying. The main requirements for XEUS are to provide a focused beam of X-rays with an effective aperture of 5 m^2 at 1 keV, 2 m^2 at 7 keV, a spatial resolution better than 5 arcsec, a spectral resolution ranging from 2 to 6 eV in the 0.1-8 keV energy band, a total energy bandpass of 0.1-40 keV, ultra-fast timing, and finally polarimetric capabilities. The High Time Resolution Spectrometer (HTRS) is one of the five focal plane instruments, which comprises also a wide field imager, a hard X-ray imager, a cryogenic spectrometer, and a polarimeter. The HTRS is unique in its ability to cope with extremely high count rates (up to 2 Mcts/s), while providing sub-millisecond time resolution and good (CCD like) energy resolution. In this paper, we focus on the specific scientific objectives to be pursued with the HTRS: they are all centered around the key theme "Matter under extreme conditions" of the Cosmic Vision science program. We demonstrate the potential of the HTRS observations to probe strong gravity and matter at supra-nuclear densities. We conclude this paper by describing the current implementation of the HTRS in the XEUS focal plane.
description: 10 pages, 10 figures (color), Proceedings of the SPIE meeting, Marseille (2008)
Duality-invariant (super)conformal higher-spin models
Creators: name: Kuzenko, Sergei M.
name: Raptakis, Emmanouil S. N.
Publisher: name: arXiv
Year: 2021
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We develop a general formalism of duality rotations for bosonic conformal spin-$s$ gauge fields, with $s\geq 2$, in a conformally flat four-dimensional spacetime. In the $s=1$ case this formalism is equivalent to the theory of $\mathsf{U}(1)$ duality-invariant nonlinear electrodynamics developed by Gaillard and Zumino, Gibbons and Rasheed, and generalised by Ivanov and Zupnik. For each integer spin $s\geq 2$ we demonstrate the existence of families of conformal $\mathsf{U}(1)$ duality-invariant models, including a generalisation of the so called ModMax Electrodynamics ($s=1$). Our bosonic results are then extended to the $\mathcal{N}=1$ and $\mathcal{N}=2$ supersymmetric cases. We also sketch a formalism of duality rotations for conformal gauge fields of Lorentz type $(m/2, n/2)$, for positive integers $m $ and $n$.
description: 42 pages; v4: published version
Metallicities & Activities of Southern Stars
Creators: name: Jenkins, J. S.
name: Jones, H. R. A.
name: Pavlenko, Y.
name: Pinfield, D. J.
name: Barnes, J. R.
name: Lyubchik, Y.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We present the results from high-resolution spectroscopic measurements to determine metallicities and activities of bright stars in the southern hemisphere. We have measured the iron abundances ([Fe/H]) and chromospheric emission indices (logR'HK) of 353 solar-type stars with V=7.5-9.5. [Fe/H] abundances are determined using a custom chi^2 fitting procedure within a large grid of Kurucz model atmospheres. The chromospheric activities were determined by measuring the amount of emission in the cores of the strong CaII HK lines. The sample of metallicities has been compared to other [Fe/H] determinations and was found to agree with these at the +/-0.05 dex level for spectroscopic values and at the +/-0.1 dex level for photometric values. The distribution of chromospheric activities is found to be described by a bimodal distribution, agreeing well with the conclusions from other works. Also an analysis of Maunder Minimum status was attempted and it was found that 6+/-4 stars in the sample could be in a Maunder Minimum phase of their evolution and hence the Sun should only spend a few per cent of its main sequence lifetime in Maunder Minimum.
description: 20 pages, 19 figures, 4 tables, accepted A&A (04/04/2008); New version has updated section references
Spin diffusion length associated to out-of-plane resistivity of Pt thin films in spin pumping experiments
Creators: name: Gonzalez-Fuentes, Claudio
name: Dumas, Randy K.
name: Bozzo, Bernat
name: Pomar, Alberto
name: Henriquez, Ricardo
name: García, Calos
Publisher: name: arXiv
Year: 2021
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Other Condensed Matter (cond-mat.other)
subject: FOS: Physical sciences

description: We present a broadband ferromagnetic resonance study of the Gilbert damping enhancement ($Δα$) due to spin pumping in NiFe/Pt bilayers. The bilayers, which have negligible interfacial spin memory loss, are studied as a function of the Pt layer thickness ($t_{\text{Pt}}$) and temperature (100-293 K). Within the framework of diffusive spin pumping theory, we demonstrate that Dyakonov-Perel (DP) or Elliot-Yaffet (EY) spin relaxation mechanisms acting alone are incompatible with our observations. In contrast, if we consider that the relation between spin relaxation characteristic time ($τ_{\text{s}}$) and momentum relaxation characteristic time ($τ_{\text{p}}$) is determined by a superposition of DP and EY mechanisms, the qualitative and quantitative agreement with experimental results is excellent. Remarkably, we found that $τ_{\text{p}}$ must be determined by the out-of-plane electrical resistivity ($ρ$) of the Pt film and hence its spin diffusion length ($λ_{\text{Pt}}$) is independent of $t_{\text{Pt}}$. Our work settles the controversy regarding the $t_{\text{Pt}}$ dependence of $λ_{\text{Pt}}$ by demonstrating its fundamental connection with $ρ$ considered along the same direction of spin current flow. \end{abstract}
description: 7 pages, 4 figures
Revisiting quark and gluon polarization in the proton at the EIC
Creators: name: Zhou, Y.
name: Cocuzza, C.
name: Delcarro, F.
name: Melnitchouk, W.
name: Metz, A.
name: Sato, N.
Publisher: name: arXiv
Year: 2021
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: We present a comprehensive impact study of future Electron-Ion Collider (EIC) data for parity-conserving and parity-violating polarization asymmetries on quark and gluon helicity distributions in the proton. The study, which is based on the JAM Monte Carlo global QCD analysis framework, explores the role of the extrapolation uncertainty and SU(3) flavor symmetry constraints in the simulated double-spin asymmetry, $A_{LL}$, at small parton momentum fractions $x$ and its effect on the extracted parton polarizations. We find that different assumptions about $A_{LL}$ extrapolations and SU(3) symmetry can have significant consequences for the integrated quark and gluon polarizations, for polarized proton, deuteron and $^3$He beams. For the parity-violating asymmetry, $A_{UL}$, we study the potential impact on the polarized strange quark distribution with different extrapolations of $A_{UL}$, finding the constraining power to be ultimately limited by the EIC machine luminosity.
description: 23 pages, 7 figures
A study of the radiative parameters for design of a solar pond
Creators: name: Das, Aurobindo Kenneth
Publisher: name: University of British Columbia
Year: 2010

description: This research presents the development of a transmittance- absorptance parameter for a solar pond. Such a parameter represents, directly, the fraction of the incident solar radiation which is absorbed at the bottom of the solar pond. It can be used to represent pond performance through an equation analogous to the Hottel-Whillier-Bliss Equation for a flat-plate solar collector. The above parameter is called the transmittance - absorptance product and is an energy-weighted quantity. Monthly values of the proposed parameter are developed from an hour-by-hour simulation. The simulation utilizes hourly values of spectral solar radiation reaching the earth's surface which are computed from a state-of-the-art algorithm that has been slightly modified to better estimate diffuse spectral radiation at large solar zenith angles; the modification is also presented. Thermal conductive losses through the water layers and the surrounding earth together with evaporative and convective losses are usually the only loss mechanisms considered for a solar pond. Under clear skies and to a lesser extent under cloudy skies, a longwave radiation heat loss also occurs from the pond surface. The estimation of radiative loss from any terrestrial surface requires detailed computations and atmospheric data. The procedure has been greatly simplified through a correlation which yields spectral atmospheric emissivity from the amounts of absorbing gases present in the atmosphere. It is recommended for further study that the performance of a solar pond be estimated using the proposed transmittance-absorptance product to compute the solar energy absorbed in the pond, and that the longwave radiative loss from the pond be included in the analysis. A comparison with data obtained from an existing solar pond is recommended to validate the results obtained in this study.
Large underground, liquid based detectors for astro-particle physics in Europe: scientific case and prospects
Creators: name: Autiero, D.
name: Aysto, J.
name: Badertscher, A.
name: Bezrukov, L.
name: Bouchez, J.
name: Bueno, A.
name: Busto, J.
name: Campagne, J. -E.
name: Cavata, Ch.
name: Chaussard, L.
name: de Bellefon, A.
name: Declais, Y.
name: Dumarchez, J.
name: Ebert, J.
name: Enqvist, T.
name: Ereditato, A.
name: von Feilitzsch, F.
name: Perez, P. Fileviez
name: Goger-Neff, M.
name: Gninenko, S.
name: Gruber, W.
name: Hagner, C.
name: Hess, M.
name: Hochmuth, K. A.
name: Kisiel, J.
name: Knecht, L.
name: Kreslo, I.
name: Kudryavtsev, V. A.
name: Kuusiniemi, P.
name: Lachenmaier, T.
name: Laffranchi, M.
name: Lefievre, B.
name: Lightfoot, P. K.
name: Lindner, M.
name: Maalampi, J.
name: Maltoni, M.
name: Marchionni, A.
name: Undagoitia, T. Marrodan
name: Marteau, J.
name: Meregaglia, A.
name: Messina, M.
name: Mezzetto, M.
name: Mirizzi, A.
name: Mosca, L.
name: Moser, U.
name: Muller, A.
name: Natterer, G.
name: Oberauer, L.
name: Otiougova, P.
name: Patzak, T.
name: Peltoniemi, J.
name: Potzel, W.
name: Pistillo, C .
name: Raffelt, G. G.
name: Rondio, E.
name: Roos, M.
name: Rossi, B.
name: Rubbia, A.
name: Savvinov, N.
name: Schwetz, T.
name: Sobczyk, J.
name: Spooner, N. J. C.
name: Stefan, D.
name: Tonazzo, A.
name: Trzaska, W.
name: Ulbricht, J.
name: Volpe, C.
name: Winter, J.
name: Wurm, M.
name: Zalewska, A.
name: Zimmermann, R.
Publisher: name: arXiv
Year: 2007
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: This document reports on a series of experimental and theoretical studies conducted to assess the astro-particle physics potential of three future large-scale particle detectors proposed in Europe as next generation underground observatories. The proposed apparatus employ three different and, to some extent, complementary detection techniques: GLACIER (liquid Argon TPC), LENA (liquid scintillator) and MEMPHYS (\WC), based on the use of large mass of liquids as active detection media. The results of these studies are presented along with a critical discussion of the performance attainable by the three proposed approaches coupled to existing or planned underground laboratories, in relation to open and outstanding physics issues such as the search for matter instability, the detection of astrophysical- and geo-neutrinos and to the possible use of these detectors in future high-intensity neutrino beams.
description: 50 pages, 26 figures
Nailed It! - PID Edition
Creators: name: Paglione, Laura
Publisher: name: Zenodo
Year: 2021
Subjects: Persistent Identifiers
logos
crossref
orcid
doi
datacite
raid
freya
ror
creativity

description: A green circle? Colorful overlapping strips? Blue and Black swooshes? Do you know your PID-ful icons? Welcome to... “Nailed It!” - PID edition. The PIDapaloza conference session (very) loosely based on the award winning Netflix show*, based on the internet phenomenon where ordinary people try to recreate masterpieces… but don’t always get there. I’m Laura Paglione, PID enthusiast. Today YOU will join a team to recreate iconic PID logos. One team will walk away with extreme bragging rights. But all are winners here, as you have a bit of fun while getting more familiar with the symbols of the PIDs we use. * This presentation is absolutely in no way related to or supported by Netflix or its show "Nailed It!".
description: Presentation document differs slightly from that used during the conference session. The session was interactive. This document was updated to include the audience responses. See related identifiers for a link to the recorded presentation. Pixelated recreation on title slide by Erin Paglione and Jordan Paglione.
The Groebner basis of the ideal of vanishing polynomials
Creators: name: Greuel, G. -M.
name: Seelisch, F.
name: Wienand, O.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Commutative Algebra (math.AC)
subject: Algebraic Geometry (math.AG)
subject: FOS: Mathematics
subject: 13P10, 13F20 (Primary) 68W30, 13F15, 33F10, 11C08, 13B25, 13M10 (Secondary)

description: We construct an explicit minimal strong Groebner basis of the ideal of vanishing polynomials in the polynomial ring over Z/m for m>=2. The proof is done in a purely combinatorial way. It is a remarkable fact that the constructed Groebner basis is independent of the monomial order and that the set of leading terms of the constructed Groebner basis is unique, up to multiplication by units. We also present a fast algorithm to compute reduced normal forms, and furthermore, we give a recursive algorithm for building a Groebner basis in Z/m[x_1,x_2,...,x_n] along the prime factorization of m. The obtained results are not only of mathematical interest but have immediate applications in formal verification of data paths for microelectronic systems-on-chip.
description: 15 pages, 1 table, 2 algorithms (corrected version with new Prop. 3.8 and proof); Journal of Symbolic Computation 46 (2011)
Cognitive cascades: How to model (and potentially counter) the spread of fake news
Creators: name: Rabb, Nicholas
name: Cowen, Lenore
name: de Ruiter, Jan P.
name: Scheutz, Matthias
Publisher: name: arXiv
Year: 2021
Subjects: subject: Social and Information Networks (cs.SI)
subject: FOS: Computer and information sciences

description: Understanding the spread of false or dangerous beliefs through a population has never seemed so urgent. Network science researchers have often taken a page from epidemiologists, and modeled the spread of false beliefs as similar to how a disease spreads through a social network. However, absent from those disease-inspired models is an internal model of an individual's set of current beliefs, where cognitive science has increasingly documented how the interaction between mental models and incoming messages seems to be crucially important for their adoption or rejection. Some computational social science modelers analyze agent-based models where individuals do have simulated cognition, but they often lack the strengths of network science, namely in empirically-driven network structures. We introduce a cognitive cascade model that combines a network science belief cascade approach with an internal cognitive model of the individual agents as in opinion diffusion models as a public opinion diffusion (POD) model, adding media institutions as agents which begin opinion cascades. We conduct an analysis of the cognitive cascade model with our simple cognitive function across various graph topologies and institutional messaging patterns. We argue from our results that population-level aggregate outcomes of the model qualitatively match what has been reported in COVID-related public opinion polls, and that the model dynamics lend insights as to how to address the spread of problematic beliefs. The overall model sets up a framework with which social science misinformation researchers and computational opinion diffusion modelers can join forces to understand, and hopefully learn how to best counter, the spread of disinformation and "alternative facts."
Testing the Paradigm that Ultraluminous X-ray Sources as a Class Represent Accreting Intermediate-Mass Black Holes
Creators: name: Berghea, C. T.
name: Weaver, K. A.
name: Colbert, E. J. M.
name: Roberts, T. P.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: To test the idea that ultraluminous X-ray sources (ULXs) in external galaxies represent a class of accreting intermediate-mass black holes (IMBHs), we have undertaken a program to identify ULXs and a lower luminosity X-ray comparison sample with the highest quality data in the {\it Chandra} archive. We establish as a general property of ULXs that the most X-ray-luminous objects possess the flattest X-ray spectra (in the {\it Chandra} bandpass). No prior sample studies have established the general hardening of ULX spectra with luminosity. This hardening occurs at the highest luminosities (absorbed luminosity $\geq5\times10^{39}$~erg~s$^{-1}$) and is in line with recent models arguing that ULXs are actually stellar-mass black holes. From spectral modeling, we show that the evidence originally taken to mean that ULXs are IMBHs - i.e., the "simple IMBH model" - is nowhere near as compelling when a large sample of ULXs is looked at properly. During the last couple of years, {\it XMM-Newton} spectroscopy of ULXs has to a large extent begun to negate the simple IMBH model based on fewer objects. We confirm and expand these results, which validates the {\it XMM-Newton} work in a broader sense with independent X-ray data. We find that (1) cool-disk components are present with roughly equal probability and total flux fraction for any given ULX, regardless of luminosity, and (2) cool-disk components extend below the standard ULX luminosity cutoff of 10$^{39}$~erg~s$^{-1}$, down to our sample limit of 10$^{38.3}$~erg~s$^{-1}$. The fact that cool disk components are not correlated with luminosity damages the argument that cool disks indicate IMBHs in ULXs, for which strong statistical support was never found.
description: 38 pages, 6 figures, accepted by ApJ
Hypertension and diabetic cardiomyopathy
Creators: name: Rodrigues, Brian Baltzar
Publisher: name: University of British Columbia
Year: 2010

description: The isolated perfused working heart was used to study hypertensive- diabetes induced alterations in cardiac function at 6 and 12 weeks after the induction of diabetes. There was no difference in cardiac function between normotensive Wistar and spontaneously hypertensive (SHR) diabetic rats at 6 weeks after diabetes induction. Wistar-Kyoto (WKY) rats were also included as normotensive controls in our 12-week study. Successful induction of diabetes was confirmed by the presence of hyperglycemia, hypoinsulinemia, glycosuria and increased haemoglobin glycosylation in all three diabetic groups. However, quantitation of various parameters of heart function revealed highly significant differences between SHR diabetic animals and all other groups, associated with an increased mortality. Serum lipids were elevated in SHR and Wistar and unaffected in WKY diabetic rats. Furthermore, thyroid hormone levels were not depressed in WKY diabetic rats and could explain the lack of cardiac dysfunction in these animals. The data provide further evidence that the combination of hypertension and diabetes mellitus produces greater myocardial dysfunction than is seen with either disease alone and is associated with a significant mortality. The effects of hydralazine on blood lipids, systolic pressure and cardiac performance were assessed in male Wistar rats, 6 weeks after they were made diabetic with streptozotocin (STZ). When hydralazine was administered for a 6-week period to the diabetic rats, their blood lipids were not significantly different from that of non-diabetic rats despite a low serum insulin. In contrast, blood lipids were elevated in the diabetic rats that were not treated with hydralazine; these animals also had low insulin levels. Cardiac performance was depressed in the untreated diabetic animals, but the cardiac performance of the hydralazine-treated diabetic animals showed a definite improvement which could be partly explained by their normal thyroid status in contrast to the untreated diabetic animals which were slightly hypothyroid. Blood pressure was elevated only in the untreated diabetic animals. Thus hydralazine controlled the high serum lipids and blood pressure and improved cardiac performance in STZ diabetic rats. To examine the influence of sex differences in the STZ model of diabetes, we studied left ventricular function in hearts from 6 week male and female rats. Significantly lower values for +dP/dt occurred in male diabetic rats compared with their own controls or female diabetics at most left atrial filling pressures. Decreases in this value for female diabetic rats compared to their own controls occurred only at high left atrial pressures. It appears that diabetes mellitus produces greater myocardial dysfunction in male diabetic rats.
Global hierarchy vs. local structure: spurious self-feedback in scale-free networks
Creators: name: Merger, Claudia
name: Reinartz, Timo
name: Wessel, Stefan
name: Honerkamp, Carsten
name: Schuppert, Andreas
name: Helias, Moritz
Publisher: name: arXiv
Year: 2021
Subjects: subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Biological Physics (physics.bio-ph)
subject: Physics and Society (physics.soc-ph)
subject: FOS: Physical sciences

description: Networks with fat-tailed degree distributions are omnipresent across many scientific disciplines. Such systems are characterized by so-called hubs, specific nodes with high numbers of connections to other nodes. By this property, they are expected to be key to the collective network behavior, e.g., in Ising models on such complex topologies. This applies in particular to the transition into a globally ordered network state, which thereby proceeds in a hierarchical fashion, and with a non-trivial local structure. Standard mean-field theory of Ising models on scale-free networks underrates the presence of the hubs, while nevertheless providing remarkably reliable estimates for the onset of global order. Here, we expose that a spurious self-feedback effect, inherent to mean-field theory, underlies this apparent paradox. More specifically, we demonstrate that higher order interaction effects precisely cancel the self-feedback on the hubs, and we expose the importance of hubs for the distinct onset of local versus global order in the network. Due to the generic nature of our arguments, we expect the mechanism that we uncover for the archetypal case of Ising networks of the Barabási-Albert type to be also relevant for other systems with a strongly hierarchical underlying network structure.
Daphniidae
Creators: name: Sinev, Artem Y.
name: Gu, Yangliang
name: Han, Bo-Ping
Publisher: name: Zenodo
Year: 2015
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Branchiopoda
Diplostraca
Daphniidae

description: Family Daphniidae   Ceriodaphnia cornuta Sars, 1888. Common in winter, in all types of waters; more rare in spring, found in one reservoir and two ponds. Taxon of unclear status, presumed to be pantropical. This species was described from Australia. C. rigaudi Richard, 1884, described from North Vietnam, is presumed to be a form of C. cornuta (Rzoska 1956; Kotov & Ferrari 2011) but future revision is needed.
 Scapholeberis kingi Sars, 1888. Common in winter, in all types of water bodies, in spring encountered only once in a paddy field. Littoral species, associated with water surface. Paleotropical, common in South-East Asia. For description, see Dumont & Pensaert (1983).
  Simocephalus cf. heilongjiangensis  Shi & Shi, 1994. Rare, encountered in one reservoir, one pond and two rivers. Littoral species, associated with vegetation; all Simocephalus species are able to attach themselves to the substrate. The heilongjiangensis -complex in Asia needs revision, taxonomic status of populations from South-East Asia is unclear (Sinev & Korovchinsky, 2013). For description see Orlova-Bienkowskaya (2001).
 Simocephalus congener (Koch, 1841). Encountered once in winter, in Manning reservoir (loc. 34). Littoral species, associated with vegetation. For description, see Orlova-Bienkowskaia (2001). This species is close to S. expinosus, but, according to Orlova-Bienkowskaya (2001), it is a separate species, which differs from S. expinosus by the morphology of the postabdominal claw, having a pecten of 18–22 spines on the outer side instead of 8–12 in S. expinosus. Recorded for China only once, in Potatso National Park in Shangri-La (Xiang et al. 2015).
 Simocephalus mixtus (O. F. Mueller, 1776). Very common species in the area, encountered in reservoirs, rivers and in paddy fields once, but not present in ponds; in winter encountered more frequently than in spring. Littoral species, associated with vegetation. Widely distributed species, recorded in all climatic zones of North Hemisphere, including China (Orlova-Bienkowskaia, 2001). For description, see Orlova-Bienkowskaia (2001).
description: Published as part of Sinev, Artem Y., Gu, Yangliang & Han, Bo-Ping, 2015, Cladocera of Hainan Island, China, pp. 569-585 in Zootaxa 4006 (3) on page 575, DOI: 10.11646/zootaxa.4006.3.9, http://zenodo.org/record/239040
Analytical Investigation of Focusing Bose-Einstein condensates
Creators: name: Richberg, R.
name: Martin, A. M.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Quantum Gases (cond-mat.quant-gas)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: The focusing of a propagating untrapped Bose-Einstein condensate is studied theoretically. We use a scaling solution method comprising a time-dependent scaling function to analytically examine the dynamics of a falling Bose-Einstein condensate in different regimes of propagation including the expansion and compression zones. Our model is based on the Gross-Pitaevskii equation which involves the interparticle interactions between atoms, and consequently their influence on the focused structures. We investigate the focused profile characteristic factors such as the resolution and peak density for various cases of the focusing optical potential parameters as well as the factors associated with the moving cloud. Our results are compared with numerical solutions of the Gross-Pitaevskii equation.
description: 9 pages, 7 figures
Dynamically broken Anti-de Sitter action for gravity
Creators: name: Tresguerres, Romualdo
Publisher: name: arXiv
Year: 2008
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: Due to a suitable Higgs mechanism, a standard Anti-de Sitter gauge theory becomes spontaneously broken. The resulting Lorentz invariant gravitational action includes the Hilbert-Einstein term of ordinary Einstein-Cartan gravity with cosmological constant, plus contributions quadratic in curvature and torsion, and a scalar Higgs sector.
description: 7 Revtex pages, no figures
On the role of leptonic CPV phases in cLFV observables
Creators: name: Abada, A.
name: Kriewald, J.
name: Teixeira, A. M.
Publisher: name: arXiv
Year: 2021
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: In extensions of the Standard Model by Majorana fermions, the presence of additional CP violating phases has been shown to play a crucial role in lepton number violating processes. In this work we show that (Dirac and Majorana) CP violating phases can also lead to important effects in charged lepton flavour violating (cLFV) transitions and decays, in some cases with a significant impact for the predicted rates of cLFV observables. We conduct a thorough exploration of these effects in several cLFV observables, and discuss the implications for future observation. We emphasise how the presence of leptonic CP violating phases might lead to modified cLFV rates, and to a possible loss of correlation between cLFV observables.
description: 35 pages, 16 figures, v2: references updated, matches version published in EPJC
Moinidae
Creators: name: Sinev, Artem Y.
name: Gu, Yangliang
name: Han, Bo-Ping
Publisher: name: Zenodo
Year: 2015
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Branchiopoda
Diplostraca
Moinidae

description: Family Moinidae   Moina micrura Kurz, 1874. Common species, encountered in plankton of reservoirs, ponds, and rivers, more frequent in spring. Usually rather numerous. For description see Goulden (1968). The species was described from Czech Republic, recorded in South and Central Europe, tropical Asia, Africa, North and South America (Goulden 1968), but according to Petrusek et al. (2004), M. micrura is a complex of cryptic species. Common species in Oriental region, mostly associated with temporary pools, rice fields and small shallow semi-permanent ponds.
 Moinodaphnia macleayi (King, 1853). Encountered in spring only, in two reservoirs, one pond and one paddy field. Littoral species, associated with muddy bottom and vegetation, attach itself to the substrate like Simocephalus. For description see Goulden (1968), and for description of the Indochina populations see Idris (1983). The species was described from Australia, and presumed to be pantropical (Goulden 1968); populations from South-East Asia are probably conspecific with Australian ones. Species rare for China, for list of records see Xiang et al. (2015).
description: Published as part of Sinev, Artem Y., Gu, Yangliang & Han, Bo-Ping, 2015, Cladocera of Hainan Island, China, pp. 569-585 in Zootaxa 4006 (3) on page 575, DOI: 10.11646/zootaxa.4006.3.9, http://zenodo.org/record/239040
Measurement of n-resolved State-Selective Charge Exchange in Ne(8,9)+ Collision with He and H2
Creators: name: Xu, J. W.
name: Xu, C. X.
name: Zhang, R. T.
name: Zhu, X. L.
name: Feng, W. T.
name: Gu, L.
name: Liang, G. Y.
name: Guo, D. L.
name: Gao, Y.
name: Zhao, D. M.
name: Zhang, S. F.
name: Su, M. G.
name: Ma, X.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: Atomic Physics (physics.atom-ph)
subject: FOS: Physical sciences

description: Charge exchange between highly charged ions and neutral atoms and molecules has been considered as one of the important mechanisms controlling soft X ray emissions in many astrophysical objects and environments. However, for modeling charge exchange soft X ray emission, the data of n and l resolved state selective capture cross sections are often obtained by empirical and semiclassical theory calculations. With a newly built cold target recoil ion momentum spectroscopy (COLTRIMS) apparatus, we perform a series of measurements of the charge exchange of Ne(8,9)+ ions with He and H2 for collision energy ranging from 1 to 24.75 keV/u. n resolved state selective capture cross-sections are reported. By comparing the measured state selective capture cross sections to those calculated by the multichannel Landau Zener method (MCLZ), it is found that MCLZ calculations are in good agreement with the measurement for the dominant n capture for He target. Furthermore, by using nl resolved cross sections calculated by MCLZ and applying l distributions commonly used in the astrophysical literature to experimentally derived n resolved cross sections, we calculate the soft X ray emissions in the charge exchange between 4 keV/u Ne8+ and He by considering the radiative cascade from the excited Ne7+ ions. Reasonable agreement is found in comparison to the measurement for even and separable models, and MCLZ calculations give results in a better agreement.
TECHNOLOGY AND EFFICIENCY OF DRYING MELONS IN A PNEUMO-DRYER
Creators: name: Iskandarov, Zafar
name: Shokirkhujayeva, Umida
Publisher: name: Zenodo
Year: 2025

description: Melon is an important food product for the human body, containing many beneficial substances, including vitamins, minerals and natural sugars. Therefore, it is important to store melon for a long time and supply it in accordance with market requirements. The traditional method of drying in the sun takes a long time, can negatively affect the quality of the product and depends on environmental conditions. Therefore, the use of modern drying technologies, including pneumatic dryers, is one of the current issues. This article presents the results of a study on the technology of drying melon using a pneumatic dryer, its efficiency and energy consumption.
title: Post-dynamic recrystallization in a heavily alloyed Ni-based superalloy
Creators: name: Ganeev, A.
name: Zainullin, R.
name: Shakhov, R.
name: Mukhtarov, S.
name: Imayev, V.
Publisher: name: Peter the Great St. Petersburg Polytechnic University
Year: 2021

description: The work is devoted to a study of post-dynamic recrystallization in a recently developed nickel-based superalloy SDZhS-15 manufactured by ingot metallurgy and intended for disc applications. The as-cast superalloy was subjected to long-term homogenization annealing and canned forging at subsolvus temperatures (T=Ts-(40-70), where Ts is the γ′ solvus temperature) under quasi-isothermal conditions. This led to the formation of a refined recrystallized fine-grained structure with individual non-recrystallized γ grains in the central part of the forged workpiece. However, in the near-surface layers of the forged workpiece, the volume fraction of non-recrystallized grains was appreciably higher. To further recrystallize the as-forged microstructure the recrystallization annealing was performed at a temperature (T=Ts-70) for different times to obtain a homogeneous recrystallized and fine-grained structure (dγ<10 μm) without causing a strong grain growth. The produced microstructures were examined by scanning electron microscopy including the electron backscattered diffraction technique. It was established that the increase of the annealing time led to the refinement of coarse non-recrystallized γ grains and insignificant coarsening of fine-grained recrystallized structure. The fraction of high-angle grain/interphase boundaries including twin boundaries increased. It was revealed that the use of the recrystallization annealing resulted in a slower γ grain growth during subsequent solid solution treatment in contrast to the conditions obtained via forging followed by solid solution treatment. Based on the performed work, the processing route of the heavily alloyed ingot-metallurgy SDZhS-15 superalloy was specified. It should include homogenization annealing, canned hot forging at subsolvus temperatures, post-forging recrystallization annealing, solid solution treatment, and ageing.
Particle Motion in the Rotating Black Ring Metric
Creators: name: Hoskisson, James
Publisher: name: arXiv
Year: 2007
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: In this paper, the equations of motion for geodesics in the neutral rotating Black Ring metric are derived and the separability of these equations is considered. The bulk of the paper is concerned with sets of solutions where the geodesic equations can be examined analytically - specifically geodesics confined to the axis of rotation, geodesics restricted to the equatorial plane, and geodesics that circle through the centre of the ring. The geodesics on the rotational axis behave like a particle in a potential well, while the geodesics confined to the equatorial plane mimic those of the Schwarzschild metric. It is shown that it is impossible to have circular orbits that pass through the ring, but some numerical results are presented which suggest that it is possible to have bound orbits that circle through the ring.
description: 36 pages, 19 figures, updated references, section 5 modified to remove ambiguity in discussion