cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Testing the isomorph invariance of the bridge functions of Yukawa one-component plasmas. I. Intermediate and long range
Creators: name: Castello, F. Lucco
name: Tolias, P.
name: Dyre, J. C.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Plasma Physics (physics.plasm-ph)
subject: FOS: Physical sciences

description: It has been recently conjectured that bridge functions remain nearly invariant along phase diagram lines of constant excess entropy for the broad class of R-simple liquids. To test this hypothesis, the bridge functions of Yukawa systems are computed outside the correlation void with the Ornstein-Zernike inversion method and structural input from ultra-accurate molecular dynamics simulations. The effect of statistical, grid, finite-size, tail and isomorphic errors is quantified. Uncertainty propagation analysis is complemented with a detailed investigation of the sensitivity of the bridge function to periodic and aperiodic multiplicative perturbations in the radial distribution function. In the long and intermediate range, bridge functions are demonstrated to be approximately isomorph invariant.
description: 22 pages; 12 figures
Testing the isomorph invariance of the bridge functions of Yukawa one-component plasmas. II. Short range
Creators: name: Castello, F. Lucco
name: Tolias, P.
name: Dyre, J. C.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Plasma Physics (physics.plasm-ph)
subject: FOS: Physical sciences

description: It has been conjectured that bridge functions remain nearly invariant along phase diagram lines of constant excess entropy for the class of R-simple liquids. In the companion paper, this hypothesis has been confirmed for Yukawa bridge functions outside the correlation void. In order to complete the testing of the invariance ansatz, Yukawa bridge functions are here computed inside the correlation void with the cavity distribution method and input from ultra-long molecular dynamics simulations featuring a tagged particle pair. A general methodology is developed for the design of the tagged pair interaction potential that leads to the acquisition of uniform statistics. An extrapolation technique is developed to determine the bridge function value at zero separation. The effect of different sources of errors is quantified. Yukawa bridge functions are demonstrated to be nearly isomorph invariant also in the short range. Generalization to all R-simple systems and practical implications are discussed.
description: 19 pages, 10 figures, 3 tables, supplementary material
Profile Control of a Borosilicate-Glass Groove Formed by Deep Reactive Ion Etching
Creators: name: Akashi, T.
name: Yoshimura, Y.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Other Computer Science (cs.OH)
subject: FOS: Computer and information sciences

description: Deep reactive ion etching (DRIE) of borosilicate glass and profile control of an etched groove are reported. DRIE was carried out using an anodically bonded silicon wafer as an etching mask. We controlled the groove profile, namely improving its sidewall angle, by removing excessively thick polymer film produced by carbonfluoride etching gases during DRIE. Two fabrication processes were experimentally compared for effective removal of the film : DRIE with the addition of argon to the etching gases and a novel combined process in which DRIE and subsequent ultrasonic cleaning in DI water were alternately carried out. Both processes improved the sidewall angle, and it reached 85o independent of the mask-opening width. The results showed the processes can remove excessive polymer film on sidewalls. Accordingly, the processes are an effective way to control the groove profile of borosilicate glass.
description: Submitted on behalf of EDA Publishing Association (http://irevues.inist.fr/EDA-Publishing)
A simple variational quantum Monte Carlo-effective mass approach for excitons and trions in quantum dots
Creators: name: Planelles, Josep
name: Climente, Juan I.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: A computational model is presented to calculate the ground state energy of neutral and charged excitons confined in semiconductor quantum dots. The model is based on the variational Quantum Monte Carlo method and effective mass Hamiltonians. Through an iterative Newton-Rhapson process, minimizing the local energy, and (optional) parallelization of random walkers, fast and accurate estimates of both confinement and Coulomb binding energies can be obtained in standard desktop computers. To illustrate the reach of the model, we provide Fortran programs and illustrative calculations for colloidal CdSe nanoplatelets with large lateral dimensions and dielectric confinement, where electronic correlations are strong. The results compare well with exact variational calculations and largely outperform configuration interaction calculations in computational efficiency.
description: Submitted. Includes Fortran codes for VQMC calculations of excitons and trions in nanoplatelets
Sterkiella histriomuscorum Foissner, Blatterer, Berger & Kohmann 1991
Creators: name: Durán-Ramírez, Carlos Alberto
name: Dias, Roberto Júnio Pedroso
name: Estrada, Rosaura Mayén-
Publisher: name: Zenodo
Year: 2020
Subjects: Biodiversity
Taxonomy
Chromista
Ciliophora
Hypotrichea
Oxytrichida
Oxytrichidae
Sterkiella
Sterkiella histriomuscorum

description: Sterkiella histriomuscorum Foissner, Blatterer, Berger & Kohmann, 1991
Distribution. BRAZIL: Paraná River between the Nupelia’s Field Station and the district of Porto São José, São Pedro do Paraná (Buosi et al. 2014 b, 2015), (Ad). VENEZUELA: South margin of the Henri Pittier National Park, Biological Station Rancho Grande (Foissner 2016).
description: Published as part of Durán-Ramírez, Carlos Alberto, Dias, Roberto Júnio Pedroso & Estrada, Rosaura Mayén-, 2020, Checklist of ciliates (Alveolata: Ciliophora) that inhabit in bromeliads from the Neotropical Region, pp. 1-36 in Zootaxa 4895 (1) on page 11, DOI: 10.11646/zootaxa.4895.1.1, http://zenodo.org/record/4321437
Interactions between the Pacific decadal oscillation, North Atlantic oscillation, and arctic black carbon
Creators: name: Connolly-Brown, Eowyn
name: Lamarque, Jean-Francois
name: Markel, Rob
Publisher: name: University Corporation For Atmospheric Research (UCAR)
Year: 2010

Rapid melting of Arctic ice presents a significant positive forcing on the global climate system, highlighting the need to understand the forces determining melting rates. Black carbon (BC) deposition on Arctic snow and ice decreases surface albedo and increases surface and atmospheric warming, accelerating ice melt. BC is transported to the Arctic from the mid-latitudes, with Europe and Asia primary winter sources and Siberian biomass burning a large summertime contributor. Studies have found a relationship between the North Atlantic Oscillation (NAO) and northward BC transport, indicating more BC reaches the Arctic during the positive NAO phase. This study revisits this hypothesis and explores the role of the Pacific Decadal Oscillation (PDO) in Arctic BC deposition. New research suggests the PDO and NAO are more closely related than previously believed. To explore the relationship between PDO, NAO and Arctic BC, a transient historical (1850-2008) simulation has been generated using the CAM-Chem model. Two distinct PDO regimes, PDO+ and PDO-, were analyzed in conjunction with the NAO. Results indicate the PDO has a minor individual impact on BC, but the phase modulates the relative NAO role in BC transport and deposition. The PDO generated positive reinforcement in horizontal and vertical winds and precipitable water lead to changes in Arctic BC transport, precipitation, and wet deposition rates, and the responses demonstrate strong seasonality with winter and spring dominance. The results suggest transport pathway dependence on the relative signs of the NAO and PDO, but further study using explicit tracers is necessary for confirmation.
An analysis of the rapid intensification of Hurricane Wilma from the 2005 Atlantic hurricane season
Creators: name: Vincente, Vanessa
name: Weber, William
name: Melhado, Loretta
Publisher: name: University Corporation For Atmospheric Research (UCAR)
Year: 2010

One of the most noteworthy tropical systems from the record-breaking 2005 Atlantic hurricane season was Hurricane Wilma. Wilma's deepening rate, minimum central pressure, and small eye motivate further research into its life cycle. Unfortunately, barotropic models have difficulty reproducing Wilma’s observed rapid intensification (RI) period. The cause of this predicament may be attributed to the model’s initialization fields, a lack of a denser observational network, or insufficient remote sensing measurements. This research offers beneficial insights into Wilma’s dynamic personality by using a 3-D visualization and analysis tool, Unidata's Integrated Data Viewer (IDV), to investigate what dynamic and thermodynamic parameters played a role in Wilma's RI. Examination of model output retrieved from the Hurricane Weather Research and Forecasting (H-WRF) model revealed strong positive correlations between: net latent heat flux and wind speed; surface relative humidity and precipitable water. Strong negative correlations were found between: mean sea level pressure and wind speed; mean sea level pressure and precipitable water. An abundant amount of moisture provided the latent heat release needed to fuel and further intensify Wilma, evident by its rapid deepening and increasing wind speed. Little wind shear and distinct surface cyclonic and upper-level anticyclonic circulations allowed Wilma to sustain its composition. These results serve as a foundation to build upon by others exploring the RI of Wilma or other tropical systems. Unidata's RAMADDA server is designed for the community to gain access to all content related to Wilma, and provide ancillary data analysis or model output to further advance Wilma’s case study.
MSSM at future Higgs factories
Creators: name: Li, Honglei
name: Song, Huayang
name: Su, Shufang
name: Su, Wei
name: Yang, Jin Min
Publisher: name: arXiv
Year: 2020
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: In this work, we study the implication of Higgs precision measurements at future Higgs factories on the MSSM parameter space, focusing on the dominant stop sector contributions. We perform a multi-variable fit to both the signal strength for various Higgs decay channels at Higgs factories and the Higgs mass. The chi-square fit results show sensitivity to mA, tan beta, stop mass parameter mSUSY as well as the stop left-right mixing parameter Xt. We also study the impact of the Higgs mass prediction on the MSSM and compare the sensitivities of different Higgs factories.
description: 20 pages, 7 figures
Die Eucharistie: Ökumenische Errungenschaften und bleibende Unterschiede
Creators: name: Wood, Susan K.
Publisher: name: Ökumenische Rundschau
Year: 2025

description: Ökumenische Rundschau, Bd. 61 Nr. 4 (2012): Ökumenische Rundschau, Band 61, Heft 4
Selection of High Strength Encapsulant for MEMS Devices Undergoing High Pressure Packaging
Creators: name: Hamzah, A. A.
name: Husaini, Y.
name: Husaini, Y.
name: Majlis, B. Y.
name: Ahmad, I.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Other Computer Science (cs.OH)
subject: FOS: Computer and information sciences

description: Deflection behavior of several encapsulant materials under uniform pressure was studied to determine the best encapsulant for MEMS device. Encapsulation is needed to protect movable parts of MEMS devices during high pressure transfer molded packaging process. The selected encapsulant material has to have surface deflection of less than 5 ?m under 100 atm vertical loading. Deflection was simulated using CoventorWare ver.2005 software and verified with calculation results obtained using shell bending theory. Screening design was used to construct a systematic approach for selecting the best encapsulant material and thickness under uniform pressure up to 100 atm. Materials considered for this study were polyimide, parylene C and carbon based epoxy resin. It was observed that carbon based epoxy resin has deflection of less than 5 ?m for all thickness and pressure variations. Parylene C is acceptable and polyimide is unsuitable as high strength encapsulant. Carbon based epoxy resin is considered the best encapsulation material for MEMS under high pressure packaging process due to its high strength.
description: Submitted on behalf of EDA Publishing Association (http://irevues.inist.fr/EDA-Publishing)
A representation formula for slice regular functions over slice-cones in several variables
Creators: name: Dou, Xinyuan
name: Ren, Guangbin
name: Sabadini, Irene
Publisher: name: arXiv
Year: 2020
Subjects: subject: Complex Variables (math.CV)
subject: FOS: Mathematics
subject: 30G35, 17A30

description: The aim of this paper is to extend the so called slice analysis to a general case in which the codomain is a real vector space of even dimension, i.e. is of the form $\mathbb{R}^{2n}$. We define a cone $\mathcal{W}_\mathcal{C}^d$ in $[End(\mathbb{R}^{2n})]^d$ and we extend the slice-topology $τ_s$ to this cone. Slice regular functions can be defined on open sets in $\left(τ_s,\mathcal{W}_\mathcal{C}^d\right)$ and a number of results can be proved in this framework, among which a representation formula. This theory can be applied to some real algebras, called left slice complex structure algebras. These algebras include quaternions, octonions, Clifford algebras and real alternative $*$-algebras but also left-alternative algebras and sedenions, thus providing brand new settings in slice analysis.
description: 29 pages
Isomorphs in nanoconfined liquids
Creators: name: Carter, Benjamin M. G. D.
name: Royall, C. Patrick
name: Dyre, Jeppe C.
name: Ingebrigtsen, Trond S.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: We study in this paper the possible existence of Roskilde-simple liquids and their isomorphs in a rough-wall nanoconfinement. Isomorphs are curves in the thermodynamic phase diagram along which structure and dynamics are invariant in suitable nondimensionalized units. Two model liquids using molecular dynamics computer simulations are considered: the single-component Lennard-Jones (LJ) liquid and the Kob-Andersen binary LJ mixture, both of which in the bulk phases are known to have isomorphs. Nanoconfinement is implemented by adopting a slit-pore geometry with fcc crystalline walls; this implies inhomogenous density profiles both parallel and perpendicular to the confining walls. Despite this fact and consistent with an earlier study [Ingebrigtsen et. al, Phys. Rev. Lett. 111, 235901 (2013)] we find that these nanoconfined liquids have isomorphs to a good approximation. More specifically, we show good scaling of inhomogenous density profiles, mean-square displacements, and higher-order structures probed using the topological cluster classification algorithm along the isomorphs. From this study, we conjecture that in experiments, Roskilde-simple liquids may exhibit isomorphs if confined in a suitable manner, for example with carbon nanotubes. Our study thus provides an alternative framework for understanding nanoconfined liquids.
description: 21 pages
Statistics on the Heterotic Landscape: Gauge Groups and Cosmological Constants of Four-Dimensional Heterotic Strings
Creators: name: Dienes, Keith R.
Publisher: name: arXiv
Year: 2006
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: Recent developments in string theory have reinforced the notion that the space of stable supersymmetric and non-supersymmetric string vacua fills out a ``landscape'' whose features are largely unknown. It is then hoped that progress in extracting phenomenological predictions from string theory -- such as correlations between gauge groups, matter representations, potential values of the cosmological constant, and so forth -- can be achieved through statistical studies of these vacua. To date, most of the efforts in these directions have focused on Type I vacua. In this note, we present the first results of a statistical study of the heterotic landscape, focusing on more than 10^5 explicit non-supersymmetric tachyon-free heterotic string vacua and their associated gauge groups and one-loop cosmological constants. Although this study has several important limitations, we find a number of intriguing features which may be relevant for the heterotic landscape as a whole. These features include different probabilities and correlations for different possible gauge groups as functions of the number of orbifold twists. We also find a vast degeneracy amongst non-supersymmetric string models, leading to a severe reduction in the number of realizable values of the cosmological constant as compared with naive expectations. Finally, we also find strong correlations between cosmological constants and gauge groups which suggest that heterotic string models with extremely small cosmological constants are overwhelmingly more likely to exhibit the Standard-Model gauge group at the string scale than any of its grand-unified extensions. In all cases, heterotic worldsheet symmetries such as modular invariance provide important constraints that do not appear in corresponding studies of Type I vacua.
description: 58 pages, LaTeX, 17 figures, 3 tables; v2: one new figure and references added
Crossover between Strongly-coupled and Weakly-coupled Exciton Superfluids
Creators: name: Liu, Xiaomeng
name: Li, J. I. A.
name: Watanabe, Kenji
name: Taniguchi, Takashi
name: Hone, James
name: Halperin, Bertrand I.
name: Kim, Philip
name: Dean, Cory R.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: In fermionic systems, superconductivity and superfluidity are enabled through the condensation of fermion pairs. The nature of this condensate can be tuned by varying the pairing strength, with weak coupling yielding a BCS-like condensate and strong coupling resulting in a BEC-like process. However, demonstration of this cross-over has remained elusive in electronic systems. Here we study graphene double-layers separated by an atomically thin insulator. Under applied magnetic field, electrons and holes couple across the barrier to form bound magneto-excitons whose pairing strength can be continuously tuned by varying the effective layer separation. Using temperature-dependent Coulomb drag and counter-flow current measurements, we demonstrate the capability to tune the magneto-exciton condensate through the entire weak-coupling to strong-coupling phase diagram. Our results establish magneto-exciton condensates in graphene as a model platform to study the crossover between two Bosonic quantum condensate phases in a solid state system.
description: 7 pages, 3 figures and supplementary materials
Flow coefficients in O-O Al-Al and Cu-Cu collisions at 200 GeV in the fusing color string model
Creators: name: Braun, M. A.
name: Pajares, C.
Publisher: name: arXiv
Year: 2020
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: In view of the planning experiments for collisions of light nuclei at RHIC the flow coefficients for O-O, Al-AL and Cu-Cu collisions are studied in the color string percolation model. Our results for $v_2$ are somewhat smaller than predicted by other groups although with the same dependence on centrality. Our obtained $v_3$ lie between predictions of other groups.
description: 11 pages, 4 figures
A Two-Step Etching Method to Fabricate Nanopores in Silicon
Creators: name: Wang, G. -J.
name: Chen, W. -Z.
name: Chang, K. J.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Other Computer Science (cs.OH)
subject: FOS: Computer and information sciences

description: A cost effectively method to fabricate nanopores in silicon by only using the conventional wet-etching technique is developed in this research. The main concept of the proposed method is a two-step etching process, including a premier double-sided wet etching and a succeeding track-etching. A special fixture is designed to hold the pre-etched silicon wafer inside it such that the track-etching can be effectively carried out. An electrochemical system is employed to detect and record the ion diffusion current once the pre-etched cavities are etched into a through nanopore. Experimental results indicate that the proposed method can cost effectively fabricate nanopores in silicon.
description: Submitted on behalf of EDA Publishing Association (http://irevues.inist.fr/EDA-Publishing)
Audio recordings: context
Creators: name: Andi Macahuachi, Delia Luisa
name: Michael, Lev
Publisher: name: California Language Archive, University of California, Berkeley
Year: 2022
Subjects: subject: ash

description: 2 short WAV recordings of the parting conversation between LDM and DAM just prior to LDM's departure from Puerto Elvira. LDM speaks in Spanish; DAM speaks in Spanish and Quichua.
Ground state approximation for strongly interacting systems in arbitrary dimension
Creators: name: Anders, S.
name: Plenio, M. B.
name: Dür, W.
name: Verstraete, F.
name: Briegel, H. -J.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Quantum Physics (quant-ph)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: We introduce a variational method for the approximation of ground states of strongly interacting spin systems in arbitrary geometries and spatial dimensions. The approach is based on weighted graph states and superpositions thereof. These states allow for the efficient computation of all local observables (e.g. energy) and include states with diverging correlation length and unbounded multi-particle entanglement. As a demonstration we apply our approach to the Ising model on 1D, 2D and 3D square-lattices. We also present generalizations to higher spins and continuous-variable systems, which allows for the investigation of lattice field theories.
description: 4 pages, 4 figures
Model verification and analysis of intense mesoscale convective vortices at the surface: Simulation of Tropical Storm Erin 2007
Creators: name: Carroll, Dereka
name: Williams, Christopher
name: Evans, Clark
name: Calvo, Natalie
name: Pauzauskie, Dana
Publisher: name: University Corporation For Atmospheric Research (UCAR)
Year: 2010

While much is known about the evolution of mesoscale convective vortices (MCVs) found in the middle troposphere, less is known about the evolutions of MCVs with strong surface reflections. Over recent years, several such MCVs have impacted the central and eastern portions of the United States. While such MCV events are less frequent than their upper level counterparts, they are commonly associated with large areas of severe surface winds. This makes understanding the evolutions of these high-impact weather phenomena critical to improving watch/warning forecast lead times. Before this can be done, an accurate, high resolution meteorological data set must be obtained for each case to be studied. With a lack of direct observations from most MCV cases, such a data set must be obtained via numerical simulation. The focus of this work is to verify the ability of a numerical model to accurately represent the evolution of an intense MCV event, the overland reintensification of Tropical Storm Erin (2007). Version 3.2 of the Advanced Research Weather Research and Forecasting model (WRF-ARW) is used to conduct a high resolution simulation of Erin. The model exhibits a slight slow and weak bias with respect to track and intensity. Simulated reflectivity structures modestly resemble radar-based observations. Simulated thermodynamic quantities closely resemble those synthesized from observations. Simulations of additional cases are needed, however, to verify the model's ability to accurately represent multiple MCV events and to begin to draw insight into how these features develop, intensity, and decay.
The mid-infrared Leavitt Law for Classical Cepheids in the Magellanic Clouds
Creators: name: Chown, Abigail H.
name: Scowcroft, Victoria
name: Wuyts, Stijn
Publisher: name: arXiv
Year: 2020
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: The Cepheid Leavitt Law (LL), also known as the Period-Luminosity relation, is a crucial tool for assembling the cosmic distance ladder. By combining data from the OGLE-IV catalogue with mid-infrared photometry from the Spitzer Space Telescope, we have determined the $3.6$ $μ$m and $4.5$ $μ$m LLs for the Magellanic Clouds using around 5000 fundamental-mode Classical Cepheids. Mean magnitudes were determined using a Monte Carlo Markov Chain (MCMC) template fitting procedure, with template light curves constructed from a subsample of these Cepheids with fully-phased, well-sampled light curves. The dependence of the Large Magellanic Cloud LL coefficients on various period cuts was tested, in addition to the linearity of the relationship. The zero point of the LL was calibrated using the parallaxes of Milky Way Cepheids from the Hubble Space Telescope and Gaia Data Release 2. Our final calibrated relations are $M_{[3.6]} = -3.246(\pm 0.008)(\log(P)-1.0)-5.784(\pm 0.030)$ and $M_{[4.5]} = -3.162(\pm 0.008)(\log(P)-1.0)-5.751(\pm 0.030)$.
description: Accepted by MNRAS, the full Cepheid catalogue accompanying this article will be available soon
Search for Superfluidity in Solid Hydrogen
Creators: name: Clark, A. C.
name: Lin, X.
name: Chan, M. H. W.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Other Condensed Matter (cond-mat.other)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: A torsional oscillator study of solid para-hydrogen has been carried out down to 20 mK in search for evidence of superfluidity. This work was inspired by the observation of the supersolid phase in solid He-4. We found evidence of a possible phase transition, marked by an abrupt increase in the resonant period of oscillation and onset of extremely long relaxation times as the temperature was raised above 60 mK. The change in the period for para-hydrogen, in contrast to solid He-4, is not related to superfluidity as it fails a crucial test showing that it is not a consequence of irrotational flow. The long relaxation times observed suggest the effect is related to the motion of residual ortho-hydrogen molecules in the solid.
description: 4 pages, 2 figures
Spectral functions of 2D systems with coupling of electrons to collective or localized spin degrees of freedom
Creators: name: Katanin, A. A.
name: Irkhin, V. Yu.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: The spectral properties of itinerant 2D systems with (nearly) ferromagnetic ground state are studied within the spin-fermion and the classical s-d exchange models. While the former model describes the effect of collective magnetic excitations on the electronic properties, the latter one considers the effect of local moments. We use the equation of motion approach combined with the 1/M and 1/z expansions (M is the number of spin components, z is the coordination number) to investigate spectral functions. In both the models the spectrum splitting occurs at low temperatures T in the renormalized classical regime due to strong magnetic fluctuations. For the interaction J between electronic and magnetic degrees of freedom comparable to the bandwidth (the intermediate-coupling regime) the 1/z expansion predicts full splitting of electronic spectrum below some temperature T_s. At the same time, the spectrum remains only partly split in the 1/M expansion with the quasiparticle structure which becomes fully coherent at low T.
description: 13 pages, 10 figures, RevTex
Spectral dimensions of Krein--Feller operators and $L^{q}$-spectra
Creators: name: Kesseböhmer, Marc
name: Niemann, Aljoscha
Publisher: name: arXiv
Year: 2021
Subjects: subject: Functional Analysis (math.FA)
subject: Dynamical Systems (math.DS)
subject: Spectral Theory (math.SP)
subject: FOS: Mathematics
subject: 35P20, 35J05, 28A80, 42B35, 45D05

description: We study the spectral dimensions and spectral asymptotics of Krein-Feller operators for arbitrary finite Borel measures on $\left(0,1\right).$ Connections between the spectral dimension, the $L^{q}$-spectrum, the partition entropy and the optimised coarse multifractal dimension are established. In particular, we show that the upper spectral dimension always corresponds to the fixed point of the $L^{q}$-spectrum of the corresponding measure. Natural bounds reveal intrinsic connections to the Minkowski dimension of the support of the associated Borel measure. Further, we give a sufficient condition on the $L^{q}$-spectrum to guarantee the existence of the spectral dimension. As an application, we confirm the existence of the spectral dimension of self-conformal measures with or without overlap as well as of certain measures of pure point type. We construct a simple example for which the spectral dimension does not exist and determine explicitly its upper and lower spectral dimension.
description: 50 pages, 2 figures
Spectral asymptotics of Krein--Feller operators for weak Gibbs measures on self-conformal fractals with overlaps
Creators: name: Kesseböhmer, Marc
name: Niemann, Aljoscha
Publisher: name: arXiv
Year: 2021
Subjects: subject: Functional Analysis (math.FA)
subject: Dynamical Systems (math.DS)
subject: Spectral Theory (math.SP)
subject: FOS: Mathematics
subject: 35P20, 35J05, 28A80, 42B35, 45D05

description: We study the spectral dimensions and spectral asymptotics of Krein--Feller operators for weak Gibbs measures on self-conformal fractals with or without overlaps. We show that, restricted to the unit interval, the $L^{q}$-spectrum for every weak Gibbs measure $ρ$ with respect to a $\mathcal{C}^{1}$-IFS exists as a limit. Building on recent results of the authors, we can deduce that the spectral dimension with respect to a weak Gibbs measure exists and equals the fixed point of its $L^{q}$-spectrum. For an IFS satisfying the open set condition, it turns out that the spectral dimension equals the unique zero of the associated pressure function. Moreover, for a Gibbs measure with respect to a $\mathcal{C}^{1+γ}$-IFS under the open set condition, we are able to determine the asymptotics of the eigenvalue counting function.
description: 31 pages, 1 figure
Understanding changes in the Arctic basin sea ice mass budget as simulated by CCSM4: Implications from melt season characteristics and the surface albedo feedback
Creators: name: Pollak, Daniel
name: Holland, Marika
name: Bailey, David
name: Jahn, Alexandra
name: Worster, Cindy
Publisher: name: University Corporation For Atmospheric Research (UCAR)
Year: 2010

Observations reveal alarming drops in Arctic sea ice extent, and climate models project that further changes will occur that could have global repercussions. An important aspect of this change is the surface albedo feedback, driven by the contrast between the albedos of snow/ice and the open ocean. This feedback causes ice to melt and overall albedos to decrease, amplifying surface warming in the Arctic. NCAR's newly released, fully coupled Community Climate System Model Version 4 (CCSM4) is used to assess long-term changes in the Arctic sea ice mass budget. Analysis of monthly-averaged mass budget time series from the 20th and 21st centuries revealed drastic changes from 1980-2050, the focus years of this study. While numerous factors determine the Arctic sea ice mass budget, we focus on the surface melt terms as they are most closely related to the surface albedo feedback. During the study period, annually averaged difference plots of sea ice thickness and area both revealed substantial decreases across the entire Arctic domain. Helping to clarify these long-term changes, new daily output data from the CCSM4 allowed for the examination of melt season characteristics such as onset and cessation dates as well as season duration. One of the most interesting aspects was the shift to earlier onset dates throughout the Arctic Basin. This shift, coupled with the seasonal solar cycle has substantial implications. Earlier onset dates imply an earlier decrease of albedo that overlaps with the seasonal maximum of downward shortwave radiation. This leads to increases in shortwave absorption and results in amplified ice melt, subsequently intensifying the surface albedo feedback. The strong relationship between earlier melt onset dates and increased absorbed radiation does exist and therefore is a key factor leading toward Arctic amplification.
Singularities, black holes, and cosmic censorship: A tribute to Roger Penrose
Creators: name: Landsman, Klaas
Publisher: name: arXiv
Year: 2021
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences
subject: 83C57, 82-03

description: In the light of his recent (and fully deserved) Nobel Prize, this pedagogical paper draws attention to a fundamental tension that drove Penrose's work on general relativity. His 1965 singularity theorem (for which he got the prize) does not in fact imply the existence of black holes (even if its assumptions are met). Similarly, his versatile definition of a singular space-time does not match the generally accepted definition of a black hole (derived from his concept of null infinity). To overcome this, Penrose launched his cosmic censorship conjecture(s), whose evolution we discuss. In particular, we review both his own (mature) formulation and its later, inequivalent reformulation in the PDE literature. As a compromise, one might say that in "generic" or "physically reasonable" space-times, weak cosmic censorship postulates the appearance and stability of event horizons, whereas strong cosmic censorship asks for the instability and ensuing disappearance of Cauchy horizons. As an encore, an appendix by Erik Curiel reviews the early history of the definition of a black hole.
description: 28 pages. Section 3.2 expanded by a page and some references added
Approximation order of Kolmogorov diameters via $L^{q}$-spectra and applications to polyharmonic operators
Creators: name: Kesseböhmer, Marc
name: Niemann, Aljoscha
Publisher: name: arXiv
Year: 2021
Subjects: subject: Functional Analysis (math.FA)
subject: Spectral Theory (math.SP)
subject: FOS: Mathematics
subject: 46A32, 35P20, 42B35, 31B30, 28A80

description: We establish a connection between the $L^{q}$-spectrum of a Borel measure $ν$ on the $m$-dimensional unit cube and the approximation order of Kolmogorov diameters of the unit sphere with respect to Sobolev norms in $L_{ν}^{p}$. This leads to improvements of classical results of Borzov and Birman/Solomjak for a broad class of singular measures. As an application, we consider spectral asymptotics of polyharmonic operators and obtain improved upper bounds of the decay rate of their eigenvalues. For measures with non-trivial absolutely continuous parts as well as for self-similar measures the exact approximation orders are stated.
description: 21 pages, 1 figure
A Reconfigurable Impedance Matching Network Employing RF-MEMS Switches
Creators: name: Bedani, M.
name: Carozza, F.
name: Gaddi, R.
name: Gnudi, A.
name: Margesin, B.
name: Giacomozzi, F.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Other Computer Science (cs.OH)
subject: FOS: Computer and information sciences

description: We propose the design of a reconfigurable impedance matching network for the lower RF frequency band, based on a developed RF-MEMS technology. The circuit is composed of RF-MEMS ohmic relays, metal-insulator-metal (MIM) capacitors and suspended spiral inductors, all integrated on a high resistivity Silicon substrate. The presented circuit is well-suited for all applications requiring adaptive impedance matching between two in principle unknown cascaded RF-circuits. The fabrication and testing of a monolithic integrated prototype in RF-MEMS technology from ITC-irst is currently underway.
description: Submitted on behalf of EDA Publishing Association (http://irevues.inist.fr/EDA-Publishing)
TextGrids of elicitation
Creators: name: Andi Macahuachi, Delia Luisa
name: Michael, Lev
Publisher: name: California Language Archive, University of California, Berkeley
Year: 2022
Subjects: subject: ash

description: 2 TextGrids for WAV audio recordings in associated bundle; includes READ_ME file.
Summary of contents:
ash_20080619_01: Lexical elicitation by LDM: includes piedra, Sol/Dios/Luna, ayahuasca; some animals and fish.
ash_20080619_02: Lexical elicitation by LDM: includes some birds, plants, cultural items, tree; ‘yo solito soy’.
title: The British Yeomanry Cavalry, 1794-1920
Creators: name: Hay, George Murray
Publisher: name: University of Kent
Year: 2021

description: This thesis examines the place of Britain’s Yeomanry Cavalry within the wider context of the amateur military tradition, between the French Revolutionary Wars and the reformation of the Territorial Army in 1920. Covering the turbulent episodes of the 19th century, as well as the conflicts that marked its beginning and end, this thesis traces the development and evolution of the Yeomanry whilst questioning its place in British social history. To achieve these ends, it routinely returns to three key themes: the Yeomanry’s relationship with the state, its interaction with society, and its place in the wider amateur military tradition. It is argued in this study that the historiography of the amateur military movement has said too little about the Yeomanry, and much of what has been said centres on the combined experience with the Volunteers and Militia. Unlike the Volunteers, however, no text deals with the Yeomanry as a single institution. Though a number of studies have furthered our understanding for the Revolutionary and Napoleonic period, the history of this institution in the rest of the 19th century is largely neglected. This thesis will redress this balance by assessing participation and questioning the importance of the force in society; from the significance of its role as a constabulary, to the importance of its pageantry and presence to those involved and outside of the institution. It will tackle questions of social compositions – particularly the suggestion that the Yeomanry was a ‘feudal’ force – as well as the wider politics of the institution. Given its role in the Second South African War, its incorporation into the Territorial Force, and its involvement in the First World War, this study will also show the varied experience of reform and conflict by offering comparison with academic studies that have covered its sibling forces. The evolution and changing nature of the Yeomanry is considered alongside the evolution and changing nature of the amateur military movement as a whole. The part it played in shifting perceptions in government and society are considered, both in the way that the force maintained a level of independence, and how it benefited from co-operation. Above all, the importance of the Yeomanry as a civilian movement will be juxtaposed against its military pretensions.
Flux Compactification
Creators: name: Douglas, Michael R.
name: Kachru, Shamit
Publisher: name: arXiv
Year: 2006
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We review recent work in which compactifications of string and M theory are constructed in which all scalar fields (moduli) are massive, and supersymmetry is broken with a small positive cosmological constant, features needed to reproduce real world physics. We explain how this work implies that there is a ``landscape'' of string/M theory vacua, perhaps containing many candidates for describing real world physics, and present the arguments for and against this idea. We discuss statistical surveys of the landscape, and the prospects for testable consequences of this picture, such as observable effects of moduli, constraints on early cosmology, and predictions for the scale of supersymmetry breaking.
description: 66 pages, 3 figures, Latex with revtex4 macros. v3: version to appear in RMP
Admissibility of novel scientific opinion : unusual bedfellows and interdisciplinary stories
Creators: name: Wallrap, Albert Samuel
Publisher: name: University of British Columbia
Year: 2009

description: The utterances and narrative acts by scientists, lawyers, judges, and other courtroom actors may constitute a "telling" of one or several interdisciplinary stories (between scientific facts and legal norms). Under the law of evidence, the judge scrutinizes the form and content of novel scientific opinion. The value-laden communications by scientists may bolster the apparent validity and reliability of their opinions. Scientists normatively (and politically) engage the judge and jury in construction of interdisciplinary stories. Under the poethical method, the judge would consider the purported objectivity of scientific opinion, where the scientist narrates in a third-person, omniscient voice, as well as authorial responsibility (the "ethics") over "telling" an interdisciplinary story (the "poetics"), in light of the situated audience of judge and jury. Each judge and juror has a similar responsibility over listening to interdisciplinary stories, in light of the situated scientist. The judge would apply admissibility criteria under a poethics of telling and listening to interdisciplinary stories. The judge assesses the "probative value" and "prejudice" to jurors' fact-finding based not only on what scientists say, but also how they say it. Beyond or within the Mohan criteria of relevancy and necessity, the judge would consider accessibility to the norms and practices which generate novel scientific opinion. In doing so, the judge screens the form and content of interdisciplinary stories, in light of stories about telling these stories. The poethical method re-frames the concept of relevancy (and thus prima facie admissibility) and the hypothetical question, encouraging judges to think beyond the rationalist separation of logic from values, fact from law. Admissibility decisions, however, always materialize under the norms and politics of judges. An inquiry into "Law and Literature" draws upon a "story jurisprudence", illustrating a plurality of ways to make sense of admissibility criteria and interdisciplinary stories.
Topological insulators and semimetals in classical magnetic systems
Creators: name: Li, Z. -X.
name: Cao, Yunshan
name: Yan, Peng
Publisher: name: arXiv
Year: 2020
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: Pursuing topological phases in natural and artificial materials is one of the central topics in modern physical science and engineering. In classical magnetic systems, spin waves (or magnons) and magnetic solitons (such as domain wall, vortex, skyrmion, etc) represent two important excitations. Recently, the topological insulator and semimetal states in magnon- and soliton-based crystals (or metamaterials) have attracted growing attention owing to their interesting dynamics and promising applications for designing robust spintronic devices. Here, we give an overview of current progress of topological phases in structured classical magnetism. We first provide a brief introduction to spin wave, and discuss its topological properties including magnon Hall effects, topological magnon insulators, and Dirac (Weyl) magnon semimetals. Appealing proposal of topological magnonic devices is also highlighted. We then review the collective-coordinate approach for describing the dynamics of magnetic soliton lattice. Pedagogical topological models such as the Su-Schrieffer-Heeger model and the Haldane model and their manifestation in magnetic soliton crystals are elaborated. Then we focus on the topological properties of magnetic solitons, by theoretically analyzing the first-order topological insulating phases in low dimensional systems and higher-order topological states in breathing crystals. Finally, we discuss the experimental realization and detection of the edge states in both the magnonic and solitonic crystals. We remark the challenges and future prospects before concluding this article.
description: 61 pages, 49 figures
Towards a Methodology for Analysis of Interconnect Structures for 3D-Integration of Micro Systems
Creators: name: Schneider, P.
name: Reitz, S.
name: Wilde, A.
name: Elst, G.
name: Schwarz, P.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Other Computer Science (cs.OH)
subject: FOS: Computer and information sciences

description: Functional aspects as well as the influence of integration technology on the system behavior have to be considered in the 3D integration design process of micro systems. Therefore, information from different physical domains has to be provided to designers. Due to the variety of structures and effects of different physical domains, efficient modeling approaches and simulation algorithms have to be combined. The paper describes a modular approach which covers detailed analysis with PDE solvers and model generation for system level simulation.
description: Submitted on behalf of EDA Publishing Association (http://irevues.inist.fr/EDA-Publishing)
Estimating the height of the stratocumulus-topped marine boundary layer using wind profilers
Creators: name: Pina, Aaron
name: Hoar, Timothy
name: Hartten, Leslie
name: Fournier, Aime
name: Lampert, Annette
name: Allen, Laura
name: Pollak, Daniel
name: Colon-Pagan, Ian
Publisher: name: University Corporation For Atmospheric Research (UCAR)
Year: 2010

Stratocumulus clouds frequently form over the cold water of the southeastern Pacific Ocean (SEP). Large in area, they affect the Earth’s energy budget by blocking and reflecting solar radiation. In this region of atmospheric stability, the height of the boundary layer is at about the same elevation as the top of the stratus deck. In the fall of 2000, a 915-MHz wind profiler was mounted on the R/V Ronald H. Brown to obtain information about the depth of the stratocumulus-topped marine boundary layer at different times and locations. With the tandem of cloud-top heights and ceilometer data (heights of the cloud bases), cloud depth can be determined in order to draw further conclusions on the Earth’s radiation budget; however, estimating the height of the stratocumulus-topped marine boundary layer was the scope for this research. Data from daily height-vs-time plots of relevant profiler variables (reflectivity, vertical velocity, and spectral width) for different locations during the cruise in the SEP—near the equator, near the ITCZ, and in the stratocumulus region—were examined. The plots showed data that did not seem to be atmospheric, so a procedure to clean up non-atmospheric data was implemented. The adjusted data were then inserted into a modified version of the Bianco et al. (2008) boundary layer height algorithm. Estimated heights for the marine boundary layer appeared to vary between the surface of the Earth and 1500m. The detected heights will need further verification before they can definitively be considered the height of the stratocumulus-topped marine boundary layer.