cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Edge Modes in the Intermediate-D and Large-D Phases of the S=2 Quantum Spin Chain with XXZ and On-Site Anisotropies
Creators: name: Okamoto, Kiyomi
name: Tonegawa, Takashi
name: Sakai, Toru
name: Kaburagi, Makoto
Publisher: name: arXiv
Year: 2013
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: We investigate the edge modes at T=0 in the intermediate-D (ID) phase and the large-D (LD) phase of the S=2 quantum spin chain with the XXZ anisotropy and the generalized on-site anisotropies by use of the DMRG. There exists a gapless edge mode in the ID phase, while no gapless edge mode in the LD phase. These results are consistent with the physical pictures of these phases. We also show the ground-state phase diagrams obtained by use of the exact diagonalization and the level spectroscopy analysis.
description: Submitted to "Proceedings of the International Conference on Strongly Correlated Electron Systems (SCES2013)"
Sensitivity of Confinement Losses in Optical Fibers to Modeling Approach
Creators: name: Vandenberge, Pieter
name: Gopalakrishnan, Jay
name: Grosek, Jacob
Publisher: name: arXiv
Year: 2023
Subjects: subject: Optics (physics.optics)
subject: Analysis of PDEs (math.AP)
subject: FOS: Physical sciences
subject: FOS: Mathematics

description: A prime objective of modeling optical fibers is capturing mode confinement losses correctly. This paper demonstrates that specific modeling choices, especially regarding the outer fiber cladding regions and the placement of the computational boundary, have significant impacts on the calculated mode losses. Our results illustrate that one can obtain disparate mode confinement loss profiles for the same optical fiber design simply by moving the boundary to a new material region. We conclude with new recommendations for how to better model these losses.
Generation and control of spin-polarized photocurrents in GaMnAs heterostructures
Creators: name: Bezerra, Anibal T.
name: Castelano, Leonardo K.
name: Degani, Marcos H.
name: Maialle, Marcelo Z.
name: Farinas, Paulo F.
name: Studart, Nelson
Publisher: name: arXiv
Year: 2013
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: Photocurrents are calculated for a specially designed GaMnAs semiconductor heterostructure. The results reveal regions in the infrared range of the energy spectrum in which the proposed structure is remarkably spin-selective. For such photon energies, the generated photocurrents are strongly spin-polarized. Application of a relatively small static bias in the growth direction of the structure is predicted to efficiently reverse the spin-polarization for some photon energies. This behavior suggests the possibility of conveniently simple switching mechanisms. The physics underlying the results is studied and understood in terms of the spin-dependent properties emerging from the particular potential profile of the structure.
description: Submitted to Applied Physics Letters, 4 pages, 2 figures
The "Tunneling Two-Level Systems" Model of the Low-Temperature Properties of Glasses: Are "Smoking-Gun" Tests Possible?
Creators: name: Leggett, Anthony James
name: Vural, Dervis Can
Publisher: name: arXiv
Year: 2013
Subjects: subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: Materials Science (cond-mat.mtrl-sci)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Following a brief review of the "two-level (tunneling) systems" model of the low-temperature properties of amorphous solids ("glasses"), we ask whether it is in fact the unique explanation of these properties as is usually assumed, concluding that this is not necessarily the case. We point out that (a) one specific form of the model is already experimentally refuted, and (b) that a definitive test of the model in its most general form, while not yet carried out, would appear to be now experimentally feasible.
Intrinsic nonlinear elasticity: An exterior calculus formulation
Creators: name: Rashad, Ramy
name: Brugnoli, Andrea
name: Califano, Federico
name: Luesink, Erwin
name: Stramigioli, Stefano
Publisher: name: arXiv
Year: 2023
Subjects: subject: Mathematical Physics (math-ph)
subject: Differential Geometry (math.DG)
subject: Dynamical Systems (math.DS)
subject: FOS: Physical sciences
subject: FOS: Mathematics

description: In this paper we formulate the theory of nonlinear elasticity in a geometrically intrinsic manner using exterior calculus and bundle-valued differential forms. We represent kinematics variables, such as velocity and rate-of-strain, as intensive vector-valued forms while kinetics variables, such as stress and momentum, as extensive covector-valued pseudo-forms. We treat the spatial, material and convective representations of the motion and show how to geometrically convert from one representation to the other. Furthermore, we show the equivalence of our exterior calculus formulation to standard formulations in the literature based on tensor calculus. In addition, we highlight two types of structures underlying the theory. First, the principle bundle structure relating the space of embeddings to the space of Riemannian metrics on the body, and how the latter represents an intrinsic space of deformations. Second, the de Rham complex structure relating the spaces of bundle-valued forms to each other.
Probing the Origin of Changing-look Quasar Transitions with Chandra
Creators: name: Yang, Qian
name: Green, Paul J.
name: MacLeod, Chelsea L.
name: Plotkin, Richard M.
name: Anderson, Scott F.
name: Bieryla, Allyson
name: Civano, Francesca
name: Eracleous, Michael
name: Graham, Matthew
name: Ruan, John J.
name: Runnoe, Jessie
name: Zhao, Xiurui
Publisher: name: arXiv
Year: 2023
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: Extremely variable quasars can also show strong changes in broad-line emission strength and are known as changing-look quasars (CLQs). To study the CLQ transition mechanism, we present a pilot sample of CLQs with X-ray observations in both the bright and faint states. From a sample of quasars with bright-state archival SDSS spectra and (Chandra or XMM-Newton) X-ray data, we identified five new CLQs via optical spectroscopic follow-up, and then obtained new target-of-opportunity X-ray observations with Chandra. No strong absorption is detected in either the bright- or the faint-state X-ray spectra. The intrinsic X-ray flux generally changes along with the optical variability, and the X-ray power-law slope becomes harder in the faint state. Large amplitude mid-infrared variability is detected in all five CLQs, and the MIR variability echoes the variability in the optical with a time lag expected from the light-crossing time of the dusty torus for CLQs with robust lag measurements. The changing-obscuration model is not consistent with the observed X-ray spectra and spectral energy distribution changes seen in these CLQs. It is highly likely that the observed changes are due to the changing accretion rate of the supermassive black hole, so the multiwavelength emission varies accordingly, with promising analogies to the accretion states of X-ray binaries.
description: Accepted for publication in ApJ; 30 pages, 12 figures
Marketing of baobab pulp in Kenya: Collectors’ choice of rural versus urban markets
Creators: name: Kaimba, George K.
name: Muendo, Kavoi M.
name: Mithofer, Dagmar
name: Kaimba, George K.
name: Muendo, Kavoi M.
name: Mithofer, Dagmar
Publisher: name: Unknown
Year: 2020
Subjects: subject: Crop Production/Industries
subject: underutilised crops
subject: indigenous fruits
subject: non-timber forest products
subject: marketing channel
subject: market development

description: Baobab products provide cash income and supplement diets for local communities living in marginalised, arid and semi-arid regions. However, these products are neglected by research, selectively traded and considered underutilised. This study endeavours to narrow this information gap by analysing the determinants of baobab collectors’ choice of marketing channels in Kenya. A multinomial logit was employed, using a dataset of 268 baobab collectors from three counties. The results show that the majority of baobab collectors sell their baobab pulp through rural markets (assemblers and rural wholesalers), as opposed to urban buyers (urban wholesalers, retailers and processors). Export channels are conspicuously missing from the chain. Human capital and transactional and institutional factors significantly influence the collectors’ choice of marketing channels. The results reveal that building capacity around market development, research and education, road networks and institutional services is essential to create more profitable channels for generating income, enhancing food security and reducing malnutrition.
Canonical magnetic insulators with isotropic magnetoelectric coupling
Creators: name: Coh, Sinisa
name: Vanderbilt, David
Publisher: name: arXiv
Year: 2013
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: We have performed an exhaustive representation-theory-based search for the simplest structures allowing isotropic magnetoelectric coupling. We find 30 such structures, all sharing a common pattern of atomic displacements in the direction of atomic magnetic moments. We focus on one of these 30 canonical structures and find that it is generically realized in a class of fractionally substituted pyrochlore compounds with an all-in-all-out magnetic order. Furthermore, we find that these substituted pyrochlore compounds have a substantial Chern-Simons orbital magnetoelectric component (θ=0.1--0.2). While this component is also formally present in strong Z_2 topological insulators (θ=π), its effects are observable there only if time-reversal symmetry is broken at the surface.
description: 5 pages with 2 figures. Supplementary information: http://civet.berkeley.edu/~sinisa/pubs/supp/canon_supp.pdf
Data-Driven Statistical Reduced-Order Modeling and Quantification of Polycrystal Mechanics Leading to Porosity-Based Ductile Damage
Creators: name: Zhang, Yinling
name: Chen, Nan
name: Bronkhorst, Curt A.
name: Cho, Hansohl
name: Argus, Robert
Publisher: name: arXiv
Year: 2023
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Predicting the process of porosity-based ductile damage in polycrystalline metallic materials is an essential practical topic. Ductile damage and its precursors are represented by extreme values in stress and material state quantities, the spatial PDF of which are highly non-Gaussian with strong fat tails. Traditional deterministic forecasts using physical models often fail to capture the statistics of structural evolution during material deformation. This study proposes a data-driven statistical reduced-order modeling framework to provide a probabilistic forecast of the deformation process leading to porosity-based ductile damage, with uncertainty quantification. The framework starts with computing the time evolution of the leading moments of specific state variables from full-field polycrystal simulations. Then a sparse model identification algorithm based on causation entropy, including essential physical constraints, is used to discover the governing equations of these moments. An approximate solution of the time evolution of the PDF is obtained from the predicted moments exploiting the maximum entropy principle. Numerical experiments based on polycrystal realizations show that the model can characterize the time evolution of the non-Gaussian PDF of the von Mises stress and quantify the probability of extreme events. The learning process also reveals that the mean stress interacts with higher-order moments and extreme events in a strongly nonlinear and multiplicative fashion. In addition, the calibrated moment equations provide a reasonably accurate forecast when applied to the realizations outside the training data set, indicating the robustness of the model and the skill for extrapolation. Finally, an information-based measurement shows that the leading four moments are sufficient to characterize the crucial non-Gaussian features throughout the entire deformation history.
Farm Population Estimates for 1975
Creators: name: Banks, Vera
name: Banks, Vera
Publisher: name: Unknown
Year: 1976
Subjects: subject: Community/Rural/Urban Development
subject: Farm population
subject: Migration
subject: Regional analysis

description: The number of persons living on U.S. farms averaged 8,864,000 in the 12-month period centered on April 1975. In continuation of a long-time downward trend, the 1975 farm population was 850,000-or 8.7 percent-less than in 1970. For the 1970-75 period, the average net loss to the farm population through migration or reclassification of residence from farm to nonfarm was about 200,000 annually. The average rate of this net loss was 2.1 percent a year. Both the number of net outmovers and the rate of outmovement for 1970-75 were substantially less than in other recent periods. The South, with a 16-percent decline since 1970, continued its heavy loss of farm population. The farm population in the West is estimated to have increased 5 percent since 1970; it declined in other regions.
A fully automatized method for the unambiguous wavelength-by-wavelength determination of the thickness and optical property of a very thin film with a transparent range
Creators: name: Maudet, Florian
name: Van Dijck, Charlotte
name: Raza, Muhammad Hamid
name: Dubourdieu, Catherine
Publisher: name: arXiv
Year: 2023
Subjects: subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: Spectroscopic ellipsometry is a powerful method with high surface sensitivity that can be used to monitor the growth of even sub-monolayer film. However, the analysis of ultrathin films is complicated by the correlation of the dielectric constant and the thickness. This problem is usually resolved by fixing one or the other value, limiting the information that can be extracted. Here, we propose a method to determine unambiguously the refractive index, extinction coefficient and thickness of a film when a transparent range is available in the energy range investigated. We decompose the analysis in three steps. First, the thickness of the film is determined from the transparent range of the film. Then, knowing the thickness of the layer, an initial estimation of the refractive index and extinction coefficient is made based on a first-order Taylor expansion of the ellipsometric ratio. Finally, using this estimation, a numerical regression is done to ensure the convergence of the fit towards the solution. A theoretical example of the method is given for two different thicknesses of TiO2 films. Finally, the method is applied to the experimental data measured during the atomic layer deposition of a thin film of Hf0.5Zr0.5O2 grown on Si. The thickness, refractive index and extinction coefficient are retrieved with a high precision in the energy range of 3.5 - 6.5 eV. A detailed analysis is presented on the accuracy of the retrieved values and their dependency on random and systematic errors for different energy ranges.
Forms of Cosmopolitanism: C. P. Cavafy at 150 years.
Creators: name: Van Dyck, Karen
Publisher: name: Columbia University
Year: 2014
Subjects: Poetry
Greek poetry, Modern
Greek literature, Modern

description: What is it, I wonder, about our increasingly cosmopolitan, multicultural and multilingual cities, whether New York or Athens, that needs a poet like Constantine P. Cavafy? What are the best ways to learn and go on learning from his poetry? How can we reconcile public legacies with the privateness of literature? As we mark the 150th anniversary of this seminal Alexandrian poet, I want to consider what is missing from accounts of Cavafy and cosmopolitanism that focus on public history, rather than the more private experience of reading poems.
Impact of Nile perch (Lates niloticus) overfishing on fishers’ income: Evidence from Lake Victoria, Tanzania
Creators: name: Mkuna, Eliaza
name: Baiyegunhi, Lloyd JS
name: Mkuna, Eliaza
name: Baiyegunhi, Lloyd JS
Publisher: name: Unknown
Year: 2020
Subjects: subject: Agricultural and Food Policy
subject: overfishing
subject: income
subject: poverty
subject: Nile perch
subject: Lake Victoria

description: Despite the crucial role played by Nile perch in the income of fishers around Lake Victoria, Tanzania, fishing pressure has increased in recent years and has led to overfishing and, consequently, a risk to the lake’s future sustainability and the fishers’ livelihoods. This study used data collected in 2018 from 268 randomly selected sample fishers at 10 landing sites across Lake Victoria. In conjunction with the endogenous switching regression model, the potential impact of Nile perch overfishing on the fishers’ income per fishing trip in Lake Victoria was evaluated. The results show that there is a significant difference in the socio-economic, institutional and fishing effort characteristics of Nile perch fishers who overfish and those who do not. In particular, Nile perch fishers who overfish earn significantly higher incomes per fishing trip than fishers who do not overfish. The study recommends the need for policy makers to develop policies that acknowledge the dynamics of socio-economic, institutional and fishing effort factors. In addition, more flexible fish quota restrictions and consistent fishing patrols need to be enforced to ensure compliance with fishery regulations. These measures should promote a balance between the sustainability of fishery resources and an improved income for Nile perch fishers in Lake Victoria.
Covering dimension using toric varieties
Creators: name: Karasev, Roman
Publisher: name: arXiv
Year: 2013
Subjects: subject: Metric Geometry (math.MG)
subject: Algebraic Topology (math.AT)
subject: FOS: Mathematics
subject: 14M25, 52B20, 54F45, 55M10, 55M30

description: In this paper we deduce the Lebesgue and the Knaster--Kuratowski--Mazurkiewicz theorems on the covering dimension, as well as their certain generalizations, from some simple facts of toric geometry. This provides a new point of view on this circle of results.
Linearised conformal Einstein field equations
Creators: name: Feng, Justin
name: Gasperin, Edgar
Publisher: name: arXiv
Year: 2023
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: The linearisation of a second-order formulation of the conformal Einstein field equations (CEFEs) in Generalised Harmonic Gauge (GHG), with trace-free matter is derived. The linearised equations are obtained for a general background and then particularised for the study linear perturbations around a flat background -- the inversion (conformal) representation of the Minkowski spacetime -- and the solutions discussed. We show that the generalised Lorenz gauge (defined as the linear analogue of the GHG-gauge) propagates. Moreover, the equation for the conformal factor can be trivialised with an appropriate choice for the gauge source functions; this permits a scri-fixing strategy using gauge source functions for the linearised wave-like CEFE-GHG, which can in principle be generalised to the nonlinear case. As a particular application of the linearised equations, the far-field and compact source approximation is employed to derive quadrupole-like formulae for various conformal fields such as the perturbation of the rescaled Weyl tensor.
description: 31 pages, 2 figures. Matches published version
Gravitational wave hints black hole remnants as dark matter
Creators: name: Domènech, Guillem
name: Sasaki, Misao
Publisher: name: arXiv
Year: 2023
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: The end state of Hawking evaporation of a black hole is uncertain. Some candidate quantum gravity theories, such as loop quantum gravity and asymptotic safe gravity, hint towards Planck sized remnants. If so, the Universe might be filled with remnants of tiny primordial black holes, which formed with mass $M<10^9\,{\rm g}$. A unique scenario is the case of $M\sim 5\times10^5\,{\rm g}$, where tiny primordial black holes reheat the universe by Hawking evaporation and their remnants dominate the dark matter. Here, we point out that this scenario leads to a cosmological gravitational wave signal at frequencies $\sim 100{\rm Hz}$. Finding such a particular gravitational wave signature with, e.g. the Einstein Telescope, would suggest black hole remnants as dark matter.
description: Note on the primordial black hole remnant scenario. 3 figures
Multi-indexed Jacobi polynomials and Maya diagrams
Creators: name: Takemura, Kouichi
Publisher: name: arXiv
Year: 2013
Subjects: subject: Mathematical Physics (math-ph)
subject: Classical Analysis and ODEs (math.CA)
subject: FOS: Physical sciences
subject: FOS: Mathematics
subject: 33C45, 81Q80

description: Multi-indexed Jacobi polynomials are defined by the Wronskian of four types of eigenfunctions of a deformed Pöschl-Teller Hamiltonian. We give a correspondence between multi-indexed Jacobi polynomials and pairs of Maya diagrams, and we show that any multi-indexed Jacobi polynomial is essentially equal to some multi-indexed Jacobi polynomial of two types of eigenfunction. As an application, we show a Wronskian-type formula of some special eigenstates of the deformed Pöschl-Teller Hamiltonian.
description: 12 pages
Financial Brownian particle in the layered order book fluid and Fluctuation-Dissipation relations
Creators: name: Yura, Yoshihiro
name: Takayasu, Hideki
name: Sornette, Didier
name: Takayasu, Misako
Publisher: name: arXiv
Year: 2014
Subjects: subject: Trading and Market Microstructure (q-fin.TR)
subject: Data Analysis, Statistics and Probability (physics.data-an)
subject: Physics and Society (physics.soc-ph)
subject: FOS: Economics and business
subject: FOS: Physical sciences

description: We introduce a novel description of the dynamics of the order book of financial markets as that of an effective colloidal Brownian particle embedded in fluid particles. The analysis of a comprehensive market data enables us to identify all motions of the fluid particles. Correlations between the motions of the Brownian particle and its surrounding fluid particles reflect specific layering interactions; in the inner-layer, the correlation is strong and with short memory while, in the outer-layer, it is weaker and with long memory. By interpreting and estimating the contribution from the outer-layer as a drag resistance, we demonstrate the validity of the fluctuation-dissipation relation (FDR) in this non-material Brownian motion process.
Implicit Ray-Transformers for Multi-view Remote Sensing Image Segmentation
Creators: name: Qi, Zipeng
name: Chen, Hao
name: Liu, Chenyang
name: Shi, Zhenwei
name: Zou, Zhengxia
Publisher: name: arXiv
Year: 2023
Subjects: subject: Computer Vision and Pattern Recognition (cs.CV)
subject: Artificial Intelligence (cs.AI)
subject: FOS: Computer and information sciences

description: The mainstream CNN-based remote sensing (RS) image semantic segmentation approaches typically rely on massive labeled training data. Such a paradigm struggles with the problem of RS multi-view scene segmentation with limited labeled views due to the lack of considering 3D information within the scene. In this paper, we propose ''Implicit Ray-Transformer (IRT)'' based on Implicit Neural Representation (INR), for RS scene semantic segmentation with sparse labels (such as 4-6 labels per 100 images). We explore a new way of introducing multi-view 3D structure priors to the task for accurate and view-consistent semantic segmentation. The proposed method includes a two-stage learning process. In the first stage, we optimize a neural field to encode the color and 3D structure of the remote sensing scene based on multi-view images. In the second stage, we design a Ray Transformer to leverage the relations between the neural field 3D features and 2D texture features for learning better semantic representations. Different from previous methods that only consider 3D prior or 2D features, we incorporate additional 2D texture information and 3D prior by broadcasting CNN features to different point features along the sampled ray. To verify the effectiveness of the proposed method, we construct a challenging dataset containing six synthetic sub-datasets collected from the Carla platform and three real sub-datasets from Google Maps. Experiments show that the proposed method outperforms the CNN-based methods and the state-of-the-art INR-based segmentation methods in quantitative and qualitative metrics.
The use of Vinylcyclohexene Diepoxide to Create Diminish Ovarian Reserve Model on Rats
Creators: name: Ekapatria, Christofani
Publisher: name: Open Science Framework
Year: 2022
Subjects: subject: Animals
subject: Organisms
subject: Obstetrics and Gynecology
subject: Medicine and Health Sciences
subject: Medical Specialties
subject: Translational Medical Research

description: This is metadata for study titled "The use of Vinylcyclohexene Diepoxide to Create Diminish Ovarian Reserve Model on Rats"
Speedy Object Detection based on Shape
Creators: name: Singh, Y. Jayanta
name: Gupta, Shalu
Publisher: name: arXiv
Year: 2013
Subjects: subject: Computer Vision and Pattern Recognition (cs.CV)
subject: FOS: Computer and information sciences

description: This study is a part of design of an audio system for in-house object detection system for visually impaired, low vision personnel by birth or by an accident or due to old age. The input of the system will be scene and output as audio. Alert facility is provided based on severity levels of the objects (snake, broke glass etc) and also during difficulties. The study proposed techniques to provide speedy detection of objects based on shapes and its scale. Features are extraction to have minimum spaces using dynamic scaling. From a scene, clusters of objects are formed based on the scale and shape. Searching is performed among the clusters initially based on the shape, scale, mean cluster value and index of object(s). The minimum operation to detect the possible shape of the object is performed. In case the object does not have a likely matching shape, scale etc, then the several operations required for an object detection will not perform; instead, it will declared as a new object. In such way, this study finds a speedy way of detecting objects.
description: arXiv admin note: text overlap with arXiv:1210.7038 by other authors
von Braun, Christina; Stephan, Inge (Hrsg.): GenderWissen
Creators: name: Hüttinger, Martin
Publisher: name: Werkstatt Schwule Theologie
Year: 1970

description: Werkstatt Schwule Theologie, Bd. 12 Nr. 3/4 (2005): Werkstatt Schwule Theologie, Band 12, Heft 3/4
Combined investigation of collective amplitude and phase modes in a quasi-one-dimensional charge-density-wave system over a wide spectral range
Creators: name: Warawa, Konstantin
name: Christophel, Nicolas
name: Sobolev, Sergei
name: Demsar, Jure
name: Roskos, Hartmut G.
name: Thomson, Mark D.
Publisher: name: arXiv
Year: 2023
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: We investigate experimentally both the amplitude and phase channels of the collective modes in the quasi-1D charge-density-wave (CDW) system, K0.3MoO3, by combining (i) optical impulsive-Raman pump-probe and (ii) terahertz time-domain spectroscopy (THz-TDS), with high resolution and a detailed analysis of the full complex-valued spectra in both cases. This allows an unequivocal assignment of the observed bands to CDW modes across the THz range up to 9 THz. We revise and extend a time-dependent Ginzburg-Landau model to account for the observed temperature dependence of the modes, where the combination of both amplitude and phase modes allows one to robustly determine the bare-phonon and electron-phonon coupling parameters. While the coupling is indeed strongest for the lowest-energy phonon, dropping sharply for the immediately subsequent phonons, it grows back significantly for the higher-energy phonons, demonstrating their important role in driving the CDW formation. We also include a reassessment of our previous analysis of the lowest-lying phase modes, whereby assuming weaker electronic damping for the phase channel results in a qualitative picture more consistent with quantum-mechanical treatments of the collective modes, with a strongly coupled amplitudon and phason as the lowest modes.
Trading Votes for Votes: A Decentralized Matching Algorithm
Creators: name: Casella, Alessandra M.
name: Palfrey, Thomas R.
Publisher: name: Columbia University
Year: 2015
Subjects: subject: Algorithms
subject: Voting--Mathematical models
subject: Assignment problems (Programming)
subject: Economics
subject: Political science
subject: FOS: Political science

description: Vote-trading is common practice in committees and group decision-making. Yet we know very little about its properties. Inspired by the similarity between the logic of sequential rounds of pairwise vote-trading and matching algorithms, we explore three central questions that have parallels in the matching literature: (1) Does a stable allocation of votes always exists? (2) Is it reachable through a decentralized algorithm? (3) What welfare properties does it possess? We prove that a stable allocation exists and is always reached in a finite number of trades, for any number of voters and issues, for any separable preferences, and for any rule on how trades are prioritized. Its welfare properties however are guaranteed to be desirable only under specific conditions. A laboratory experiment confirms that stability has predictive power on the vote allocation achieved via sequential pairwise trades, but lends only weak support to the dynamic algorithm itself.
Jordanian deformations of the AdS_5xS^5 superstring
Creators: name: Kawaguchi, Io
name: Matsumoto, Takuya
name: Yoshida, Kentaroh
Publisher: name: arXiv
Year: 2014
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Mathematical Physics (math-ph)
subject: Exactly Solvable and Integrable Systems (nlin.SI)
subject: FOS: Physical sciences

description: We consider Jordanian deformations of the AdS_5xS^5 superstring action. The deformations correspond to non-standard q-deformation. In particular, it is possible to perform partial deformations, for example, only for the S^5 part. Then the classical action and the Lax pair are constructed with a linear, twisted and extended R operator. It is shown that the action preserves the kappa-symmetry.
description: 22 pages, no figure, LaTeX, typos corrected and further clarification added
title: Gedanken eines Katholiken über "die Grundrechte des deutschen Volkes"; 1849
title: gewiedmet dem katholischen Volke Deutschlands, zunächst Bayerns ; eine sehr heilsame Lesung für Jedermann ; Motto: "Alles für Gott, König und Vaterland."
titleType: Subtitle
Creators: name: (:Unav)
Publisher: name: Universitätsbibliothek der Ludwig-Maximilians-Universität München
Year: 2018

description: Vorlageform des Erscheinungsvermerks: Augsburg, 1849. Druck und Verlag von Anton Herzog. (Leonhard Doll.)
Yekani, Elahe Haschemi; Michaelis, Beatrice (Hrsg.): Quer durch die Geisteswissenschaften
Creators: name: Brinkschröder, Michael
Publisher: name: Werkstatt Schwule Theologie
Year: 1970

description: Werkstatt Schwule Theologie, Bd. 12 Nr. 3/4 (2005): Werkstatt Schwule Theologie, Band 12, Heft 3/4
Corrosion behaviour of Zn-Co alloy and multilayered metallic coatings: a comparative insight
Creators: name: Dindar-Safa, B.
name: Mahdavi, S.
name: Etminanfar, M. R.
name: Safavi, M. S.
Publisher: name: Taylor & Francis
Year: 2022
Subjects: subject: Space Science
subject: 59999 Environmental Sciences not elsewhere classified
subject: FOS: Earth and related environmental sciences
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: Ecology
subject: FOS: Biological sciences
subject: 69999 Biological Sciences not elsewhere classified

description: Zinc layers are widely used for the protection of various classes of steel in atmospheric conditions. An improvement in corrosion performance of these layers may qualify them to be used in harsh marine conditions. In this study, two practical approaches, including alloying Zn with Co at different current densities and electrolyte temperatures, as well as deposition of multilayered Zn-Co films with various numbers of interlayers, were applied to fabricate corrosion barrier coatings on St 37 steel. The surface and cross-sectional morphologies of the coatings were studied using scanning electron microscopy (SEM). Electrochemical impedance spectroscopy (EIS) and potentiodynamic polarisation tests were employed to compare the corrosion resistance of the alloy and multilayered coatings. Results illustrated that the best protection performance is obtained for multilayered coatings with top Co layer showing promise to be used in marine applications.
Absolute Frequency Measurement of Rubidium 5S-7S Two-Photon Transitions
Creators: name: Morzynski, Piotr
name: Wcislo, Piotr
name: Ablewski, Piotr
name: Gartman, Rafal
name: Gawlik, Wojciech
name: Maslowski, Piotr
name: Nagorny, Bartlomiej
name: Ozimek, Filip
name: Radzewicz, Czeslaw
name: Witkowski, Marcin
name: Ciurylo, Roman
name: Zawada, Michal
Publisher: name: arXiv
Year: 2013
Subjects: subject: Atomic Physics (physics.atom-ph)
subject: FOS: Physical sciences

description: We report the absolute frequency measurements of rubidium 5S-7S two-photon transitions with a cw laser digitally locked to an atomic transition and referenced to an optical frequency comb. The narrow, two-photon transition, 5S-7S (760 nm) insensitive to first order in a magnetic field, is a promising candidate for frequency reference. The performed tests yield the transition frequency with accuracy better than reported previously.
description: This paper was published in Optics Letters and is made available as an electronic reprint with the permission of OSA. The paper can be found at http://dx.doi.org/10.1364/OL.38.004581. Systematic or multiple reproduction or distribution to multiple locations via electronic or other means is prohibited and is subject to penalties under law
First results from the JWST Early Release Science Program Q3D: The Warm Ionized Gas Outflow in z ~ 1.6 Quasar XID 2028 and its Impact on the Host Galaxy
Creators: name: Veilleux, Sylvain
name: Liu, Weizhe
name: Vayner, Andrey
name: Wylezalek, Dominika
name: Rupke, David S. N.
name: Zakamska, Nadia L.
name: Ishikawa, Yuzo
name: Bertemes, Caroline
name: Barrera-Ballesteros, Jorge K.
name: Chen, Hsiao-Wen
name: Diachenko, Nadiia
name: Goulding, Andy D.
name: Greene, Jenny E.
name: Hainline, Kevin N.
name: Hamann, Fred
name: Heckman, Timothy
name: Johnson, Sean D.
name: Lim, Hui Xian Grace
name: Lutz, Dieter
name: Lutzgendorf, Nora
name: Mainieri, Vincenzo
name: Maiolino, Roberto
name: McCrory, Ryan
name: Murphree, Grey
name: Nesvadba, Nicole P. H.
name: Ogle, Patrick
name: Sankar, Swetha
name: Sturm, Eckhard
name: Whitesell, Lillian
Publisher: name: arXiv
Year: 2023
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: Quasar feedback may regulate the growth of supermassive black holes, quench coeval star formation, and impact galaxy morphology and the circumgalactic medium. However, direct evidence for quasar feedback in action at the epoch of peak black hole accretion at z ~ 2 remains elusive. A good case in point is the z = 1.6 quasar WISEA J100211.29+013706.7 (XID 2028) where past analyses of the same ground-based data have come to different conclusions. Here we revisit this object with the integral field unit of the Near Infrared Spectrograph (NIRSpec) on board the James Webb Space Telescope (JWST) as part of Early Release Science program Q3D. The excellent angular resolution and sensitivity of the JWST data reveal new morphological and kinematic sub-structures in the outflowing gas plume. An analysis of the emission line ratios indicates that photoionization by the central quasar dominates the ionization state of the gas with no obvious sign for a major contribution from hot young stars anywhere in the host galaxy. Rest-frame near-ultraviolet emission aligned along the wide-angle cone of outflowing gas is interpreted as a scattering cone. The outflow has cleared a channel in the dusty host galaxy through which some of the quasar ionizing radiation is able to escape and heat the surrounding interstellar and circumgalactic media. The warm ionized outflow is not powerful enough to impact the host galaxy via mechanical feedback, but radiative feedback by the AGN, aided by the outflow, may help explain the unusually small molecular gas mass fraction in the galaxy host.
description: 17 pages, 9 figures, accepted for publication in The Astrophysical Journal
Folding@home: achievements from over twenty years of citizen science herald the exascale era
Creators: name: Voelz, Vincent A.
name: Pande, Vijay S.
name: Bowman, Gregory R.
Publisher: name: arXiv
Year: 2023
Subjects: subject: Biomolecules (q-bio.BM)
subject: Chemical Physics (physics.chem-ph)
subject: FOS: Biological sciences
subject: FOS: Physical sciences

description: Simulations of biomolecules have enormous potential to inform our understanding of biology but require extremely demanding calculations. For over twenty years, the Folding@home distributed computing project has pioneered a massively parallel approach to biomolecular simulation, harnessing the resources of citizen scientists across the globe. Here, we summarize the scientific and technical advances this perspective has enabled. As the project's name implies, the early years of Folding@home focused on driving advances in our understanding of protein folding by developing statistical methods for capturing long-timescale processes and facilitating insight into complex dynamical processes. Success laid a foundation for broadening the scope of Folding@home to address other functionally relevant conformational changes, such as receptor signaling, enzyme dynamics, and ligand binding. Continued algorithmic advances, hardware developments such as GPU-based computing, and the growing scale of Folding@home have enabled the project to focus on new areas where massively parallel sampling can be impactful. While previous work sought to expand toward larger proteins with slower conformational changes, new work focuses on large-scale comparative studies of different protein sequences and chemical compounds to better understand biology and inform the development of small molecule drugs. Progress on these fronts enabled the community to pivot quickly in response to the COVID-19 pandemic, expanding to become the world's first exascale computer and deploying this massive resource to provide insight into the inner workings of the SARS-CoV-2 virus and aid the development of new antivirals. This success provides a glimpse of what's to come as exascale supercomputers come online, and Folding@home continues its work.
description: 24 pages, 6 figures
Defect Detection Efficiency A Combined Approach
Creators: name: N, Rashmi
name: V, Suma
Publisher: name: arXiv
Year: 2014
Subjects: subject: Software Engineering (cs.SE)
subject: FOS: Computer and information sciences

description: Survival of IT industries depends much upon the development of high quality and customer satisfied software products. Quality however can be viewed from various perspectives such as deployment of the products within estimated resources, constrains and also being defect free. Testing is one of the promising techniques ever since the inception of software in the global market. Though there are several testing techniques existing, the most widely accepted is the conventional scripted testing. Despite of advancement in the technology, achieving defect free deliverables is yet a challenge. This paper therefore aims to enhance the existing testing techniques in order to achieve nearly zero defect products through the combined approach of scripted and exploratory testing. This approach thus enables the testing team to capture maximum defects and thereby reduce the expensive nature of overheads. Further, it leads towards generation of high quality products and assures the continued customer satisfaction.
description: 6 Pages, 2 Figures
title: Intraluminal duodenal diverticulum
Creators: name: Scharitzer, Martina
Publisher: name: EURORAD
Year: 2023
Subjects: subject: Abdominal imaging
subject: Gastrointestinal tract
subject: CT-Enterography
subject: Diagnostic procedure
subject: Diverticula
subject: Clinical Cases

description: Clinical History: A 61-year-old woman presented to the gastroenterology clinic with long-lasting intermittent episodes of postprandial epigastric pain and loss of appetite. Blood tests were unremarkable. Gastroscopy revealed duodenal stenosis with suspicion of an extramural lesion distorting the duodenum and a periampullary diverticular opening.

description: 61 years, female
Identifying Effects of Multivalued Treatments
Creators: name: Lee, Sobkae
name: Salanie, Bernard
Publisher: name: Columbia University
Year: 2015
Subjects: Economics, Mathematical
Distribution (Probability theory)
Economics--Mathematical models
Economics

description: Multivalued treatment models have only been studied so far under restrictive assumptions: ordered choice, or more recently unordered monotonicity. We show how marginal treatment effects can be identified in a more general class of models. Our results rely on two main assumptions: treatment assignment must be a measurable function of threshold-crossing rules; and enough continuous instruments must be available. On the other hand, we do not require any kind of monotonicity condition. We illustrate our approach on several commonly used models; and we also discuss the identification power of discrete instruments.
Effect of social networks on household dietary diversity: Evidence from smallholder farmers in Kisii and Nyamira counties, Kenya
Creators: name: Mbugua, Mercy
name: Nzuma, Jonathan
name: Mbugua, Mercy
name: Nzuma, Jonathan
Publisher: name: Unknown
Year: 2020
Subjects: subject: Consumer/Household Economics
subject: dietary diversity
subject: Poisson model
subject: nutrition networks
subject: social learning

description: Nutrition knowledge is an important driver of household dietary diversity that can be improved through access to nutrition information. However, in many rural areas, the formal flow of nutrition information is limited, although social networks could play an important role as an informal source of such information. This paper evaluates the effect of nutrition information networks on household dietary diversity in Nyamira and Kisii counties in Kenya. The paper employs a Poisson regression model on a sample of 462 farmers selected using a multi-stage sampling technique. The results show that the average household dietary diversity of an individual’s network (a proxy for social networks) had a positive and significant effect on the dietary diversity of the individual, implying that social networks have a positive effect on household dietary diversity. Moreover, the average education of an individual’s network, along with household size, wealth status and farm size, had positive significant effects on household dietary diversity. These results imply that farmers’ social networks could be used as a complementary tool for the effective delivery of nutrition education targeting the enhancement of nutritional quality.
Machine learning guided discovery of superconducting calcium borocarbides
Creators: name: Zhang, Chao
name: Tang, Hui
name: Pan, Chen
name: Jiang, Hong
name: Sun, Huai-Jun
name: Ho, Kai-Ming
name: Wang, Cai-Zhuang
Publisher: name: arXiv
Year: 2023
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Pursuit of superconductivity in light-element systems at ambient pressure is of great experimental and theoretical interest. In this work, we combine a machine learning (ML) method with first-principles calculations to efficiently search for the energetically favorable ternary Ca-B-C compounds. Three new layered borocarbides (stable CaBC5 and metastable Ca2BC11 and CaB3C3) are predicted to be phonon-mediated superconductors at ambient pressure. The hexagonal CaB3C3 possesses the highest Tc of 26.05 K among the three compounds. The σ-bonging bands around the Fermi level account for the large electron-phonon coupling (λ = 0.980) of hexagonal CaB3C3. The ML-guided approach opens up a way for greatly accelerating the discovery of new high-Tc superconductors.
Trügerischer Glanz der Regenbogenfahne?
Creators: name: Bürger, Peter
Publisher: name: Werkstatt Schwule Theologie
Year: 1970

description: Werkstatt Schwule Theologie, Bd. 12 Nr. 3/4 (2005): Werkstatt Schwule Theologie, Band 12, Heft 3/4
Antibacterial activity and biocompatibility of Ag-coated Ti implants: importance of surface modification parameters
Creators: name: Ahmadiyan, S.
name: Khalil-Allafi, J.
name: Etminanfar, M. R.
name: Safavi, M. S.
name: Hosseini, M.
Publisher: name: Taylor & Francis
Year: 2022
Subjects: subject: Space Science
subject: Medicine
subject: Physiology
subject: FOS: Biological sciences
subject: Biotechnology
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: 69999 Biological Sciences not elsewhere classified
subject: Inorganic Chemistry

description: Surface modification of titanium (Ti) implants to meet both antibacterial and biocompatibility requirements is of prime significance since it can almost guarantee implantation success. This contribution attempts to modify the surface of Ti by an integrated three-step treatment, including chemical etching, silanisation, and deposition of a silver nanoparticles (Ag NPs)-containing layer. The morphological characteristics, antibacterial activity, and biocompatibility of the modified Ti were evaluated as a function of etching time, silanisation time, and solvent type. The results illustrated the importance of the surface modification parameters in attaining favourable antibacterial performance and biocompatibility. The Ag-coated Ti substrate which underwent 2 h etching followed by 2 h silanisation in an ethanol solvent suggested the highest antibacterial activity and biocompatibility. It is believed that the application of an appropriate surface modification approach allows new ways to produce Ti implants for medical applications.