cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
The topological chiral homology of the spherical category
Creators: name: Beraldo, Dario
Publisher: name: arXiv
Year: 2018
Subjects: subject: Representation Theory (math.RT)
subject: Algebraic Geometry (math.AG)
subject: Category Theory (math.CT)
subject: Quantum Algebra (math.QA)
subject: FOS: Mathematics

description: We consider the spherical DG category $Sph_G$ attached to an affine algebraic group $G$. By definition, $Sph_G := IndCoh(LS_G(S^2))$ consists of ind-coherent sheaves of the stack of $G$-local systems on the $2$-sphere $S^2$. The $3$-dimensional version of the pair of pants endows $Sph_G$ with an $E_3$-monoidal structure. More generally, for an algebraic stack $Y$ (satisfying some mild conditions) and $n \geq -1$, we can look at the $E_{n+1}$-monoidal DG category $Sph(Y,n) := IndCoh_0((Y^{S^n})^\wedge_Y)$, where $IndCoh_0$ is the sheaf theory introduced in [AG2] and [centerH]. % The case of $Sph_G$ is recovered by setting $Y =BG$ and $n=2$. The cobordism hypothesis associates to $Sph(Y,n)$ an $(n+1)$-dimensional TQFT, whose value of a manifold $M^d$ of dimension $d \leq n+1$ (possibly with boundary) is given by the {topological chiral homology} $\int_{M^d} Sph(Y,n)$. % In this paper, we compute such homology (in virtually all cases): we have the Stokes style formula $$ \int_{M^d} Sph(Y,n) \simeq IndCoh_0 ( (Y^{\partial(M^d \times D^{n+1-d})})^\wedge_{Y^M} ) , $$ where the formal completion is constructed using the obvious projection $\partial(M^d \times D^{n+1-d}) \to M^d$. The most interesting instance of this formula is for $Sph_G \simeq Sph(BG,2)$, the original spherical category, and $X$ a Riemann surface. In this case, we obtain a monoidal equivalence $\int_X Sph_G \simeq H(LS_G^{Betti}(X))$, where $LS_G^{Betti}(X)$ is the stack of $G$-local systems on the topological space underlying $X$ and $H$ is the sheaf theory introduced in [centerH].
description: Accepted for publication by Journal of Topology
Comments on the Federal Reserve - MIT Economic Model
Creators: name: Meltzer, Allan
Publisher: name: Carnegie Mellon University
Year: 1996
Subjects: subject: 150399 Business and Management not elsewhere classified
subject: FOS: Economics and business

description: There are thirteen separate sectors or sections in the Federal Reserve- MIT model, but fortunately one section contains a set of national income accounts. If each member of the Open Market Committee manipulates his own section, each of the sections will be allocated and the computer can be assigned the task of keeping the national income accounts. One can think of some obvious assignments. Governor Maisel would probably get the housing market, and the New York Bank will surely try to wrest control of the financial sector from the Board of Governors.
Comments on the Economy
Creators: name: Meltzer, Allan
Publisher: name: Carnegie Mellon University
Year: 1982
Subjects: subject: 150399 Business and Management not elsewhere classified
subject: FOS: Economics and business

description: The economic recovery and expansion is strong. Although this recovery got off to a slow start, it has now made up the lost ground. Output has increased about as much during the first two years of this expansion as during previous expansions. Most important, output is accelerating. Each new revision of the statistics on real output, productivity, industrial production or other main line indicators of economic expansion shows that the rate of increase is faster than previously believed.
Collective Atomic Recoil Laser as a synchronization transition
Creators: name: Javaloyes, J.
name: Perrin, M.
name: Politi, A.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Optics (physics.optics)
subject: General Physics (physics.gen-ph)
subject: FOS: Physical sciences

description: We consider here a model previously introduced to describe the collective behavior of an ensemble of cold atoms interacting with a coherent electromagnetic field. The atomic motion along the self-generated spatially-periodic force field can be interpreted as the rotation of a phase oscillator. This suggests a relationship with synchronization transitions occurring in globally coupled rotators. In fact, we show that whenever the field dynamics can be adiabatically eliminated, the model reduces to a self-consistent equation for the probability distribution of the atomic "phases". In this limit, there exists a formal equivalence with the Kuramoto model, though with important differences in the self-consistency conditions. Depending on the field-cavity detuning, we show that the onset of synchronized behavior may occur through either a first- or second-order phase transition. Furthermore, we find a secondary threshold, above which a periodic self-pulsing regime sets in, that is immediately followed by the unlocking of the forward-field frequency. At yet higher, but still experimentally meaningful, input intensities, irregular, chaotic oscillations may eventually appear. Finally, we derive a simpler model, involving only five scalar variables, which is able to reproduce the entire phenomenology exhibited by the original model.
Dutch roadmap towards national implementation of FAIR data stewardship
Creators: name: Van Gelder, Celia W G
name: Jetten, Mijke
Publisher: name: Zenodo
Year: 2021
Subjects: data stewardship
training
career paths
capacity building
FAIR
National Roadmap
skill building

description: This poster was presented at the ISMB2021 Conference (25-30 July 2021). In the context of the Dutch National Programme Open Science, we have executed a project related to professionalising data stewardship, aiming to provide arguments and recommendations to ensure adequate data steward capacity in the Netherlands. It was a collaborative effort of over 30 representatives of universities, university medical centres, universities of applied sciences, service providers, and representatives of the major Dutch umbrella organisations. We performed a analysis of the data stewardship training and education landscape, based on case studies, we established the components of a job profile for data stewards (and research software engineers), we did an inventory of data-related trainings, including a pilot annotation of courses based on our data stewardship competency framework (https://doi.org/10.5281/zenodo.3471707), and we made a design for a data steward skills tool with navigation pathways. In February 2021 the end report of the project was published: Professionalising data stewardship in the Netherlands. Competences, training and education. Dutch roadmap towards national implementation of FAIR data stewardship (https://doi.org/10.5281/zenodo.4320504), ,which contains the outcomes, recommendations for all the stakeholders and next steps in the implementation trajectory, focusing on competences, training and education for data stewards.
Compositional optimization of hard-magnetic phases with machine-learning models
Creators: name: Möller, Johannes J.
name: Körner, Wolfgang
name: Krugel, Georg
name: Urban, Daniel F.
name: Elsässer, Christian
Publisher: name: arXiv
Year: 2018
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Machine Learning (ML) plays an increasingly important role in the discovery and design of new materials. In this paper, we demonstrate the potential of ML for materials research using hard-magnetic phases as an illustrative case. We build kernel-based ML models to predict optimal chemical compositions for new permanent magnets, which are key components in many green-energy technologies. The magnetic-property data used for training and testing the ML models are obtained from a combinatorial high-throughput screening based on density-functional theory calculations. Our straightforward choice of describing the different configurations enables the subsequent use of the ML models for compositional optimization and thereby the prediction of promising substitutes of state-of-the-art magnetic materials like Nd$_2$Fe$_{14}$B with similar intrinsic hard-magnetic properties but a lower amount of critical rare-earth elements.
description: 12 pages, 6 figures
Quantum-limited loss sensing: Multiparameter estimation and Bures distance between loss channels
Creators: name: Nair, Ranjith
Publisher: name: arXiv
Year: 2018
Subjects: subject: Quantum Physics (quant-ph)
subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: The problem of estimating multiple loss parameters of an optical system using the most general ancilla-assisted parallel strategy is solved under energy constraints. An upper bound on the quantum Fisher information matrix is derived assuming that the environment modes involved in the loss interaction can be accessed. Any pure-state probe that is number-diagonal in the modes interacting with the loss elements is shown to exactly achieve this upper bound even if the environment modes are inaccessible, as is usually the case in practice. We explain this surprising phenomenon, and show that measuring the Schmidt bases of the probe is a parameter-independent optimal measurement. Our results imply that multiple copies of two-mode squeezed vacuum probes with an arbitrarily small nonzero degree of squeezing, or probes prepared using single-photon states and linear optics can achieve quantum-optimal performance in conjunction with on-off detection. We also calculate explicitly the energy-constrained Bures distance between any two product loss channels. Our results are relevant to standoff image sensing, biological imaging, absorption spectroscopy, and photodetector calibration.
description: Approximates published version; Results extended, references updated, and presentation improved from v1; 6 pages, 2 figures
Comments on External Pressures and the Operations of the Fed
Creators: name: Meltzer, Allan
Publisher: name: Carnegie Mellon University
Year: 1985
Subjects: subject: 150399 Business and Management not elsewhere classified
subject: FOS: Economics and business

description: Ed Kane offers us some thoughtful propositions about the political economy of the Federal Reserve and a useful summary of his earlier work. As the title suggests, Kane emphasizes external pressures coming from Congress and the Executive and outlines the way in which these pressures operate on the Fed. He finds that the Fed's political role is to act as a scapegoat, or buffer, between the public and the government. The Fed accepts the opprobrium for decisions over which it has limited influence in exchange for the appearance of independence.
Studying the bound state of the $B\bar{K}$ system in the Bethe-Salpeter formalism
Creators: name: Wang, Zhen-Yang
name: Qi, Jing-Juan
name: Guo, Xin-Heng
Publisher: name: arXiv
Year: 2018
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: In this work, we study the $B\bar{K}$ molecule in the Bethe-Salpeter (BS) equation approach. With the kernel containing one-particle-exchange diagrams and introducing two different form factors (monopole form factor and dipole form factor) in the vertex, we solve the BS equation numerically in the covariant instantaneous approximation. We investigate the isoscalar and isovector $B\bar{K}$ systems, and we find $X(5568)$ cannot be a $B\bar{K}$ molecule.
Comments on Chitre and Gramlich
Creators: name: Meltzer, Allan
Publisher: name: Carnegie Mellon University
Year: 1983
Subjects: subject: 150399 Business and Management not elsewhere classified
subject: FOS: Economics and business

description: Analyses of the reasons for holding money and of the determinants of the quantity of money held have a long history* The problem that Chitre solved is related to that literature, but the relation is not a close one* "Speculative balances" are separated from cash balances at the start of his paper and are, neglected thereafter, so that the solution that Chitre obtains cannot be regarded as operational until he derives the total demand for money or tells us how to separate money into "motivational" components. His paper can best be described as an attempt to reopen the problem discussed in Baumol's earlier study of the transactions demand for cash* But I hesitate to call this paper an extension of Baumol's work for reasons that will become apparent in a moment* Before comparing the Baumol and Chitre solutions, let me describe the problem that Chitre analyzed.
ОПТИМИЗАЦИЯ ИСПОЛЬЗОВАНИЯ ЛОСКУТА ЖИРОВОЙ ЩЕКИ ПРИ ДЕФЕКТАХ МЯГКИХ ТКАНЕЙ В ПЕРВИЧНОЙ И ВТОРИЧНОЙ ПАЛАТОПЛАСТИКЕ
Creators: name: Ражаматов, Тимур
Publisher: name: Zenodo
Year: 2025

description: Статья посвящена оптимизации применения лоскута жировой щеки для реконструкции дефектов мягких тканей в первичной и вторичной палатопластике. Рассматриваются клинические особенности, преимущества и ограничения данного метода, а также его эффективность при различных типах дефектов мягких тканей в области лица. Описан подход к выбору метода реконструкции в зависимости от размеров и локализации дефекта. Результаты подтверждают высокую результативность использования жирового лоскута для восстановления формы и функции, улучшения эстетических результатов и минимизации осложнений.
Unified thermodynamic uncertainty relations in linear response
Creators: name: Macieszczak, Katarzyna
name: Brandner, Kay
name: Garrahan, Juan P.
Publisher: name: arXiv
Year: 2018
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: Thermodynamic uncertainty relations (TURs) are recently established relations between the relative uncertainty of time-integrated currents and entropy production in nonequilibrium systems. For small perturbations away from equilibrium, linear response (LR) theory provides the natural framework to study generic nonequilibrium processes. Here we use LR to derive TURs in a straightforward and unified way. Our approach allows us to generalize TURs to systems without local time reversal symmetry, including, for example, ballistic transport, and periodically driven classical and quantum systems. We find that for broken time reversal, the bounds on the relative uncertainty are controlled both by dissipation and by a parameter encoding the asymmetry of the Onsager matrix. We illustrate our results with an example from mesoscopic physics. We also extend our approach beyond linear response: for Markovian dynamics it reveals a connection between the TUR and current fluctuation theorems.
description: Final text (5 pages, 1 figure) and SM (8 pages, 2 figures)
Photon emission by an atom in a lossy cavity
Creators: name: Di Fidio, C.
name: Vogel, W.
name: Khanbekyan, M.
name: Welsch, D. -G.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: The dynamics of an initially excited two-level atom in a lossy cavity is studied by using the quantum trajectory method. Unwanted losses are included, such as photon absorption and scattering by the cavity mirrors and spontaneous emission of the atom. Based on the obtained analytical solutions, it is shown that the shape of the extracted spatiotemporal radiation mode sensitively depends on the atom-field interaction. In the case of a short-term atom-field interaction we show how different pulse shapes for the field extracted from the cavity can be controlled by the interaction time.
Structures of $p$-shell double-$Λ$ hypernuclei studied with microscopic cluster models
Creators: name: Kanada-En'yo, Yoshiko
Publisher: name: arXiv
Year: 2018
Subjects: subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: $0s$-orbit $Λ$ states in $p$-shell double-$Λ$ hypernuclei ($^{\ \,A}_{ΛΛ}Z$), $^{\ \,8}_{ΛΛ}\textrm{Li}$, $^{\ \,9}_{ΛΛ}\textrm{Li}$, $^{10,11,12}_{\ \ \ \ \ ΛΛ}\textrm{Be}$, $^{12,13}_{\ \ ΛΛ}\textrm{B}$, and $^{\,14}_{ΛΛ}\textrm{C}$ are investigated. Microscopic cluster models are applied to core nuclear part and a potential model is adopted for $Λ$ particles. The $Λ$-core potential is a folding potential obtained with effective $G$-matrix $Λ$-$N$ interactions, which reasonably reproduce energy spectra of $^{A-1}_{\,Λ}Z$. System dependence of the $Λ$-$Λ$ binding energies is understood by the core polarization energy from nuclear size reduction. Reductions of nuclear sizes and $E2$ transition strengths by $Λ$ particles are also discussed.
description: 15 pages, 7 figures
Comments on Bonomo and Schotta: The Effect of Federal Open Market Operations on Variations in Member Bank Reserves
Creators: name: Meltzer, Allan
Publisher: name: Carnegie Mellon University
Year: 2012
Subjects: subject: 150399 Business and Management not elsewhere classified
subject: FOS: Economics and business

description: The authors attempt to test the proposition that defensive open market operations increase the variance or standard deviation of the monetary base. The test consists of a comparison of the standard deviations of levels and changes in reserves and in free reserves with the standard deviation of levels and changes in the open market portfolio.
On the energy growth of some periodically driven quantum systems with shrinking gaps in the spectrum
Creators: name: Duclos, Pierre
name: Lev, Ondra
name: Stovicek, Pavel
Publisher: name: arXiv
Year: 2007
Subjects: subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: We consider quantum Hamiltonians of the form H(t)=H+V(t) where the spectrum of H is semibounded and discrete, and the eigenvalues behave as E_n~n^α, with 00, p>=1 and γ=(1-α)/2. We show that the energy diffusion exponent can be arbitrarily small provided p is sufficiently large and εis small enough. More precisely, for any initial condition Ψ\in Dom(H^{1/2}), the diffusion of energy is bounded from above as _Ψ(t)=O(t^σ) where σ=α/(2\ceil{p-1}γ-1/2). As an application we consider the Hamiltonian H(t)=|p|^α+ε*v(θ,t) on L^2(S^1,dθ) which was discussed earlier in the literature by Howland.
Electroweak gauge bosons self--energies: complete QCD corrections
Creators: name: Djouadi, A.
name: Gambino, P.
Publisher: name: arXiv
Year: 1993
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We present the (two--loop) QCD corrections to the longitudinal and transverse components of the electroweak gauge bosons self--energies for arbitrary momentum transfer and for different internal quark masses. Compact formulae for both the real and imaginary parts are given in the general case as well as in some physically interesting special cases. The dependence on the definition of the quark masses is discussed.
description: 21 pages + 2 figures (available upon request), standard Latex, Preprints UdeM-LPN-TH-93-169 and NYU--TH--93/09/04
Comments on "The Effects of Social Task and Situational Factors on Motivation, Performance and Appraisal"
Creators: name: Goodman, Paul S.
name: Fichman, Mark
Publisher: name: Carnegie Mellon University
Year: 2011
Subjects: subject: 150399 Business and Management not elsewhere classified
subject: FOS: Economics and business

description: Our review of Mitchell's paper "The Effects of Social, Task, and Situational Factors on Motivation, Performance, and Appraisal" is divided into three sections. First, we give a brief representation of the concepts and theory in order to facilitate our analysis of Mitchell's work. Second we identify and discuss the critical issues in the Mitchell paper. Last, we delineate our position concerning some of the major research issues on the relationship of social, task, and situational factors to performance.
Sepsis-Induced Coagulopathy: A Silent Threat Unveiled
Creators: name: Rajaram H. Patel
Publisher: name: The Science world a Monthly e magazine
Year: 2024

description: One important feature of sepsis is sepsis-induced coagulopathy (SIC), which has high rates of morbidity and mortality. The objective of this article is to clarify the etiology, diagnosis, and therapy of SIC by illuminating its complex mechanisms and potential therapeutic approaches.
Commentary: What Do Budget Deficits Do?
Creators: name: Meltzer, Allan
Publisher: name: Carnegie Mellon University
Year: 2005
Subjects: subject: 150399 Business and Management not elsewhere classified
subject: FOS: Economics and business

description: The title of Ball and Mankiw's paper asks: What Do Budget Deficits Do? One answer to that question is a restatement on the pure theory of debt-financed budget deficits. An alternative answer would develop the effects on the U.S. or world economies on the assumption that the U.S. federal government balances its budget by reducing spending, instead of raising tax rates, or running deficits equal to 2 or 3 percent (or higher) of GDP. The alternative answer considers not only deficit reduction but the way in which deficit reduction is achieved and the effects on resource allocation.
The Instruments and Capabilities of the Miniature X-ray Solar Spectrometer (MinXSS) CubeSats
Creators: name: Moore, Christopher S.
name: Caspi, Amir
name: Woods, Thomas N.
name: Chamberlin, Phillip C.
name: Dennis, Brian R.
name: Jones, Andrew R.
name: Mason, James P.
name: Schwartz, Richard A.
name: Tolbert, Anne K.
Publisher: name: arXiv
Year: 2018
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: The Miniature X-ray Solar Spectrometer (MinXSS) CubeSat is the first solar science oriented CubeSat mission flown for the NASA Science Mission Directorate, with the main objective of measuring the solar soft X-ray (SXR) flux and a science goal of determining its influence on Earth's ionosphere and thermosphere. These observations can also be used to investigate solar quiescent, active region, and flare properties. The MinXSS X-ray instruments consist of a spectrometer, called X123, with a nominal 0.15 keV full-width-half-maximum (FWHM) resolution at 5.9 keV and a broadband X-ray photometer, called XP. Both instruments are designed to obtain measurements from 0.5 - 30 keV at a nominal time cadence of 10 seconds. A description of the MinXSS instruments, performance capabilities, and relation to the Geostationary Operational Environmental Satellite (GOES) 0.1 - 0.8 nm flux are discussed in this article. Early MinXSS results demonstrate the capability to measure variations of the solar spectral SXR flux between 0.8 - 12 keV from at least GOES A5 - M5 (5 $\times$ 10$^{-8}$ - 5 $\times$ 10$^{-5}$ W m$^{-2}$) levels and infer physical properties (temperature and emission measure) from the MinXSS data alone. Moreover, coronal elemental abundances can be inferred, specifically Fe, Ca, Si, Mg, S, Ar, and Ni, when there is sufficiently high count rate at each elemental spectral feature. Additionally, temperature response curves and emission measure loci demonstrate the MinXSS sensitivity to plasma emission at different temperatures. MinXSS observations coupled with those from other solar observatories can help address some of the most compelling questions in solar coronal physics. Finally, simultaneous observations by MinXSS and Reuven Ramaty High Energy Solar Spectroscopic Imager (RHESSI) can provide the most spectrally complete soft X-ray solar flare photon flux measurements to date.
description: 45 pages, 16 figures, accepted for publication in Solar Physics
Application of the RMF mass model to the r-process and the influence of mass uncertainties
Creators: name: Sun, B.
name: Montes, F.
name: Geng, L. S.
name: Geissel, H.
name: Litvinov, Yu. A.
name: Meng, J.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Astrophysics (astro-ph)
subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: A new mass table calculated by the relativistic mean field approach with the state-dependent BCS method for the pairing correlation is applied for the first time to study r-process nucleosynthesis. The solar r-process abundance is well reproduced within a waiting-point approximation approach. Using an exponential fitting procedure to find the required astrophysical conditions, the influence of mass uncertainty is investigated. R-process calculations using the FRDM, ETFSI-Q and HFB-13 mass tables have been used for that purpose. It is found that the nuclear physical uncertainty can significantly influence the deduced astrophysical conditions for the r-process site. In addition, the influence of the shell closure and shape transition have been examined in detail in the r-process simulations.
description: to be published in Phys. Rev. C, 22 pages, 9 figures
Computer vision as a powerful tool for transiting exoplanet search
Creators: name: Klagyivik, Peter
Publisher: name: Zenodo
Year: 2021
Subjects: Exoplanets
Data Analysis Techniques

description: Computer vision is a field of artificial intelligence that deals with how computers can gain understanding from digital images or videos. From another perspective, it seeks to understand and automate tasks that the human visual system can do. Computer vision tools are already in use for galaxy search and classification, or comet search. Finding transiting planet candidates looking at the photometric light curves is easy for humans, therefore they should be detectable with computer vision methods. However, first, the time-series data must be somehow encoded into 2D images. I present a pilot study of transiting planet search with computer vision using Convolutional Neural Network and its application on TESS Sector 1 short cadence light curves.
description: {"references": ["Kostov, V. B. et al. (2020) The Astronomical Journal, 159, 6"]}
Reflection-Free One-Way Edge Modes in a Gyromagnetic Photonic Crystal
Creators: name: Wang, Zheng
name: Chong, Y. D.
name: Joannopoulos, John D.
name: Soljacic, Marin
Publisher: name: arXiv
Year: 2007
Subjects: subject: Optics (physics.optics)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We point out that electromagnetic one-way edge modes analogous to quantum Hall edge states, originally predicted by Raghu and Haldane in 2D gyroelectric photonic crystals possessing Dirac point-derived bandgaps, can appear in more general settings. In particular, we show that the TM modes in a gyromagnetic photonic crystal can be formally mapped to electronic wavefunctions in a periodic electromagnetic field, so that the only requirement for the existence of one-way edge modes is that the Chern number for all bands below a gap is non-zero. In a square-lattice gyromagnetic Yttrium-Iron-Garnet photonic crystal operating at microwave frequencies, which lacks Dirac points, time-reversal breaking is strong enough that the effect should be easily observable. For realistic material parameters, the edge modes occupy a 10% band gap. Numerical simulations of a one-way waveguide incorporating this crystal show 100% transmission across strong defects, such as perfect conductors several lattice constants wide, larger than the width of the waveguide.
description: 4 pages, 3 figures (Figs. 1 and 2 revised.)
Exact results for a $Z_3$ clock-type model and some close relatives
Creators: name: Mahyaeh, Iman
name: Ardonne, Eddy
Publisher: name: arXiv
Year: 2018
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: In this paper, we generalized the Peschel-Emery line of the interacting transverse field Ising model to a model based on three-state clock variables. Along this line, the model has exactly degenerate ground states, which can be written as product states. In addition, we present operators that transform these ground states into each other. Such operators are also presented for the Peschel-Emery case. We numerically show that the generalized model is gapped. Furthermore, we study the spin-S generalization of interacting Ising model and show that along a Peschel-Emery line they also have degenerate ground states. We discuss some examples of excited states that can be obtained exactly for all these models.
description: 11 pages-v3
Commentary: The Role of Judgment and Discretion in the Conduct of Monetary Policy
Creators: name: Meltzer, Allan
Publisher: name: Carnegie Mellon University
Year: 2007
Subjects: subject: 150399 Business and Management not elsewhere classified
subject: FOS: Economics and business

description: When the organizers of this conference invited me to discuss Benjamin Friedman's paper, they anticipated that we would not agree about the costs and benefits of adherence to precommitted policy programs, or rules. I will not disappoint them. But I would like to begin by commending Ben for defining discretion, outlining some of the procedures for implementing a discretionary policy, and arguing for its virtues. In a time when efficient markets, rational expectations, neutral money, and time consistency have changed academic discussion, it has become hard to find an academic economist who defends discretionary monetary policy.
Dicranum curvatum Hedw.
Creators: name: Price, Michelle J.
Publisher: name: Zenodo
Year: 2014
Subjects: Biodiversity
Taxonomy
Plantae
Bryophyta
Bryopsida
Dicranales
Dicranaceae
Dicranum
Dicranum curvatum

description: BN: Dicranum curvatum Hedw.,
Sp. Musc. Frond.: 132, t. XXXI, f. 7-12. 1801.
CN / SY: Dicranella subulata (Hedw.) Schimp., Coroll. Bryol. Eur. 13. 1856.
PL: Locus ad declivitates viarum cavarum montanarum, inter Didymodon homomallum.
LI: Dicranum curvatum Sp. Musc. 132. t. 31, f. 7-12. ad declivia viarus cavarus Ludwig.
LT: ELLIS & PRICE (2013a: 279), lectotype in G, “[Germany/ Poland, Lausitz?] Ludwig s.n. ‘ Dicranum curvatum Sp. Musc. 132. t. 31, f. 7.-12. Ad declivia viarus cavarus Ludwig.’ (Hb. Hedwig-Schwägrichen – G00040103), plants in “b”-“d” on herbarium sheet G00040103”. [G00040103].
Figure: PRICE (2005: Fig. 52).
description: Published as part of Price, Michelle J., 2014, Hedwig-Schwägrichen types catalogue update (1): new typifications and typification corrections, pp. 119-133 in Candollea 69 (2) on page 122, DOI: 10.15553/c2014v692a3, http://zenodo.org/record/5715296
Reference-Frame-Independent Measurement-Device-Independent Quantum Key Distribution with Uncharacterized Qubits
Creators: name: Hwang, Won-Young
Publisher: name: arXiv
Year: 2018
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We propose a reference-frame-independent measurement-device-independent quantum key distribution with uncharacterized quantum bits. We show the security of the protocol. The protocol can also be useful for a channel that has a very low bit error rate but suffers a large, uncontrolled (but slow), unitary rotation.
description: arXiv admin note: text overlap with arXiv:1706.02927
Commentary: The Financial System and Economic Performance
Creators: name: Meltzer, Allan
Publisher: name: Carnegie Mellon University
Year: 2000
Subjects: subject: 150399 Business and Management not elsewhere classified
subject: FOS: Economics and business

description: Robert Merton's article should be read by anyone who is interested in the past or future evolution of financial markets. Merton develops parts of finance theory and their implications for financial markets and financial policy in a clear, crisp, and informative way. It is an excellent piece, well worth a reader's investment of time. The article starts with a broad overview of the services provided by financial institutions in a market economy: the efficient allocation of savings, the development of signals or information in the form of market clearing interest rates, asset prices, and risk premiums that guide resource allocation. It also includes the provision of a payments system that facilitates transactions by reducing the time and effort that households, corporations, and governments devote to purchasing and processing payments for purchases.
State-Space Abstractions for Probabilistic Inference: A Systematic Review
Creators: name: Lüdtke, Stefan
name: Schröder, Max
name: Krüger, Frank
name: Bader, Sebastian
name: Kirste, Thomas
Publisher: name: arXiv
Year: 2018
Subjects: subject: Artificial Intelligence (cs.AI)
subject: FOS: Computer and information sciences

description: Tasks such as social network analysis, human behavior recognition, or modeling biochemical reactions, can be solved elegantly by using the probabilistic inference framework. However, standard probabilistic inference algorithms work at a propositional level, and thus cannot capture the symmetries and redundancies that are present in these tasks. Algorithms that exploit those symmetries have been devised in different research fields, for example by the lifted inference-, multiple object tracking-, and modeling and simulation-communities. The common idea, that we call state space abstraction, is to perform inference over compact representations of sets of symmetric states. Although they are concerned with a similar topic, the relationship between these approaches has not been investigated systematically. This survey provides the following contributions. We perform a systematic literature review to outline the state of the art in probabilistic inference methods exploiting symmetries. From an initial set of more than 4,000 papers, we identify 116 relevant papers. Furthermore, we provide new high-level categories that classify the approaches, based on common properties of the approaches. The research areas underlying each of the categories are introduced concisely. Researchers from different fields that are confronted with a state space explosion problem in a probabilistic system can use this classification to identify possible solutions. Finally, based on this conceptualization, we identify potentials for future research, as some relevant application domains are not addressed by current approaches.
R Symmetry Breaking Versus Supersymmetry Breaking
Creators: name: Nelson, Ann E.
name: Seiberg, Nathan
Publisher: name: arXiv
Year: 1993
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We point out a connection between R symmetry and \susy\ breaking. We show that the existence of an R symmetry is a necessary condition for \susy\ breaking and a spontaneously broken R symmetry is a sufficient condition provided two conditions are satisfied. These conditions are: {\it genericity}, \ie\ the effective Lagrangian is a generic Lagrangian consistent with the symmetries of the theory (no fine tuning), and {\it calculability}, \ie\ the low energy theory can be described by a supersymmetric Wess-Zumino effective Lagrangian without gauge fields. All known models of dynamical supersymmetry breaking possess such a spontaneously broken R symmetry and therefore contain a potentially troublesome axion. However, we use the fact that genericity is {\it not} a feature of supersymmetric theories, even when nonperturbative renormalization is included, to show that the R symmetry can in many cases be explicitly broken without restoring supersymmetry and so the axion can be given an acceptably large mass.
description: 20 pages, UCSD/PTH 93-27, RU-93-42
Time delay and magnification centroid due to gravitational lensing by black holes and naked singularities
Creators: name: Virbhadra, K. S.
name: Keeton, C. R.
Publisher: name: arXiv
Year: 2007
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: Astrophysics (astro-ph)
subject: High Energy Physics - Theory (hep-th)
subject: Classical Physics (physics.class-ph)
subject: FOS: Physical sciences

description: We model the massive dark object at the center of the Galaxy as a Schwarzschild black hole as well as Janis-Newman-Winicour naked singularities, characterized by the mass and scalar charge parameters, and study gravitational lensing (particularly time delay, magnification centroid, and total magnification) by them. We find that the lensing features are qualitatively similar (though quantitatively different) for the Schwarzschild black holes, weakly naked, and marginally strongly naked singularities. However, the lensing characteristics of strongly naked singularities are qualitatively very different from those due the Schwarzschild black holes. The images produced by Schwarzschild black hole lenses and weakly naked and marginally strongly naked singularity lenses always have positive time delays. On the other hand, the strongly naked singularity lenses can give rise to images with positive, zero, or negative time delays. In particular, for a large angular source position the direct image (the outermost image on the same side as the source) due to strongly naked singularity lensing always has negative time delay. We also found that the scalar field decreases the time delay and increases the magnitude of magnifications of images; this result could have important implications for cosmology. As the Janis-Newman-Winicour metric also describes the exterior gravitational field of a scalar star, naked singularities as well as scalar star lenses, if these exist in nature, will serve as more efficient cosmic telescopes than regular gravitational lenses.
description: RevTex, 14 pages, 5 figures
Lettre de Etienne Dumont à Jean-François Séguier, 1784-03-21
Creators: name: Dumont, Etienne
name: Dumont, Etienne
Publisher: name: NAKALA - https://nakala.fr (Huma-Num - CNRS)
publisherIdentifier: https://ror.org/04ces3204
publisherIdentifierScheme: ROR
Year: 2021
Subjects: Librairie

description: [transcription] Monsieur,

Je profite de l'occasion de Monsieur Metcalfe gentilhomme anglais qui veut bien se charger de vous apporter vos Antiquitates galliae de Maffei. J'ai toujours grand besoin de l'Ars critica lapidaria du même si vous voulez bien me le prêter. Ce Monsieur, fort connu de Madame la baronne de Bourdic, se chargera aussi de me faire parvenir l'ars critica. Il ira rendre chez vous ce dernier livre, dès qu'il aura une occasion sûre pour ne pas le faire attendre plus longtemps. Je finis en vous souhaitant de la santé et en vous renouvellant les vifs sentiments d'estime avec lesquels j'ai l'honneur d'être

Monsieur,

Votre très humble et très obéissant serviteur.

P. Dumont
description: [personnes citées] Marie-Anne-Henriette de Bourdic, Sir (Anglais) Metcalfe
description: [reférence bibliographique citée] Donati, Sebastiano, Ad Novum Thesaurum Veterum Inscriptionum Cl. V. Ludovici Antonii Muratorii Supplementum, collectore Sebastiano Donato, Lucques,, s.n. 1765.
. Maffei, Scipione, Galliae antiquitates quaedam selectae atque in plures epistolas distributae, Parisiis, C. Osmont, 1733.
description: Source: [lieu de Conservation] Nîmes, Bibliothèque Carré d'Art [cote]ms. 141_24, fol. 176
description: Source: ark:/12148/btv1b10015209g
Experimental two-way communication with one photon
Creators: name: Massa, Francesco
name: Moqanaki, Amir
name: Baumeler, Ämin
name: Del Santo, Flavio
name: Kettlewell, Joshua A.
name: Dakic, Borivoje
name: Walther, Philip
Publisher: name: arXiv
Year: 2018
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Superposition of two or more states is one of the fundamental concepts of quantum mechanics and provides the basis for several advantages quantum information processing offers. In this work, we experimentally demonstrate that quantum superposition permits two-way communication between two distant parties that can exchange only one particle once, an impossible task in classical physics. This is achieved by preparing a single photon in a coherent superposition of the two parties' locations. Furthermore, we show that this concept allows the parties to perform secure quantum communication, where the transmitted bits and even the direction of communication remain private. These important features can lead to the development of new quantum communication schemes, which are simultaneously secure and resource-efficient.
description: Main Text (5 pages, 5 figures) + Appendix (5 pages, 2 figures); Main text substantially modified; Two authors added; Two new sections and two new figures added in the appendix; One figure moved to supplementaries
Commentary: Monetary Policy and the Control of Inflation
Creators: name: Meltzer, Allan
Publisher: name: Carnegie Mellon University
Year: 1984
Subjects: subject: 150399 Business and Management not elsewhere classified
subject: FOS: Economics and business

description: Governor Crow touched on most of the major issues one wants to raise, leaving his discussants with little to question. I can only echo his comments about the goal of price stability and the critical importance of firmly setting monetary policy on a noninflationary path and keeping it there. Like Governor Crow, I do not believe this objective has much chance of being achieved unless there is some formal understanding that frees the central bank from financing government budget deficits. I would go further. Monetary policy cannot deliver stable prices in Eastern Europe unless there are fiscal and other reforms; the commitment to price stability will be meaningless if most prices remain controlled. These fiscal and price reforms are only part of the economic reform necessary to make monetary policy work effectively.
Effective Lagrangian Approach to the Fermion Mass Problem
Creators: name: Shaw, D. S.
name: Volkas, R. R.
Publisher: name: arXiv
Year: 1993
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: An effective theory is proposed, combining the standard gauge group $SU(3)_{C}\otimes SU(2)_{L}\otimes U(1)_{Y}$ with a horizontal discrete symmetry. By assigning appropriate charges under this discrete symmetry to the various fermion fields and to (at least) two Higgs doublets, the broad spread of the fermion mass and mixing angle spectrum can be explained as a result of suppressed, non-renormalisable terms. A particular model is constructed which achieves the above while simultaneously suppressing neutral Higgs-induced flavour-changing processes.
description: 21 pages, UM-P-93/81, latex file, 1 figure available on request
title: ADCO, Cartulaire de Saint-Etienne de Dijon (XIIIe siècle), Cart. 34 (G 138), 22 folios, f. 0051
Creators: name: de la Côte d'Or, Archives départementales
name: Archives Départementales De La Côte-D'Or
name: Petot, Frédérique
name: Projet CBMA
name: CG21/F.PETOT/2009
Publisher: name: NAKALA - https://nakala.fr (Huma-Num - CNRS)
publisherIdentifier: https://ror.org/04ces3204
publisherIdentifierScheme: ROR
Year: 2020
Subjects: subject: Chartes de la Bourgogne du Moyen Âge
subject: LaMOP
subject: Laboratoire de Médiévistique Occidentale de Paris
subject: cartulaire
subject: Corpus Burgundiae Medii Aevi

description: Cartulaire de Saint-Etienne de Dijon (XIIIe siècle), Archives départementales de la Côte-d'Or, Cart. 34 (G 138), 22 folios, f. 0051, Numérisation en mode image.
description: Relation: http://www.cbma-project.eu/
description: Bibliographic citation: Cartulaire de Saint-Etienne de Dijon (XIIIe siècle), Archives départementales de la Côte-d'Or, Cart. 34 (G 138), 22 folios, f. 0051, in Projet CBMA - Corpus Burgundiae Medii Aevi [Ressource en ligne], https:// manuscrits.cbma-project.eu/
description: Provenance: abbaye Saint-Étienne de Dijon
description: Provenance: http://www.wikidata.org/entity/Q15945019
Isospin and isospin/strangeness correlations in relativistic heavy ion collisions
Creators: name: Mekjian, Aram
Publisher: name: arXiv
Year: 2007
Subjects: subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: A fundamental symmetry of nuclear and particle physics is isospin whose third component is the Gell-Mann/Nishijima expression I(z)=Q-(B+S)/2 . The role of isospin symmetry in relativistic heavy ion collisions is studied. An isospin I(z), strangeness S correlation is shown to be a direct and simple measure of flavor correlations, vanishing in a Qg phase of uncorrelated flavors in both symmetric N=Z and asymmetric N not equal to Z systems. By contrast, in a hadron phase, a I(z)/S correlation exists as long as the electrostatic charge chemical potential mu(Q)does not equal 0 as in N not equal to Z asymmetric systems. A parallel is drawn with a Zeeman effect which breaks a spin degeneracy
description: 11 pages
Dicranum interruptum Hedw.
Creators: name: Price, Michelle J.
Publisher: name: Zenodo
Year: 2014
Subjects: Biodiversity
Taxonomy
Plantae
Bryophyta
Bryopsida
Dicranales
Dicranaceae
Dicranum
Dicranum interruptum

description: BN: Dicranum interruptum Hedw.,
Sp. Musc. Frond.: 129, t. XXIX, f. 9-12. 1801.
CN / SY: Dicranella heteromalla (Hedw.) Schimp., Coroll. Bryol. Eur. 13. 1856.
PL: In montosis uliginosis silvatici ad arbores, praesertim putrescentes, in Saxonia Chemnizii, Zeisigwald (in Anglia, Germania prope Halam Saxonum Bridel.).
LI: Dicranum interruptum Hedw. Spec. Musc. p. 129. t. 29, f. 8. 9.-12. Specimina patiora Chemnitzii lecta.
LT: ELLIS & PRICE (2013a: 282), lectotype in G, “[Germany / Saxony] Chemnitz, [Hedwig?] s.n. ‘ Dicranum interruptum Hedw. Spec. Musc. p. 129. t. 29, f. 8. 9.-12. Specimina patiora Chemnitzii lecta.’ (Hb. Hedwig-Schwägrichen – G00040100), all plants on sheet G00040100”. [G00040100].
Figure: PRICE (2005: Fig. 60).
description: Published as part of Price, Michelle J., 2014, Hedwig-Schwägrichen types catalogue update (1): new typifications and typification corrections, pp. 119-133 in Candollea 69 (2) on page 122, DOI: 10.15553/c2014v692a3, http://zenodo.org/record/5715296
Resonant and Non-Resonant Pieces of the $D\rightarrow \bar{K}π$ Semileptonic Transition Amplitude
Creators: name: Schechter, J.
name: Subbaraman, A.
name: Surya, S.
Publisher: name: arXiv
Year: 1993
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We compare the resonant and non-resonant contributions in various regions of phase space for the $D\rightarrow \bar{K}\p$ semileptonic transition amplitude, computed in a chiral model which incorporates the heavy quark symmetry. Remarks on the significance for experiment and for chiral perturbation theory are made. hep-ph/yymmnnn
description: (16 pages, LaTex, SU-4228-545, figures available upon request from Schechter@suhep.phy.syr.edu)