cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Inter-comparison of the g-, f- and p-modes calculated using different oscillation codes for a given stellar model
Creators: name: Moya, A.
name: Christensen-Dalsgaard, J.
name: Charpinet, S.
name: Lebreton, Y.
name: Miglio, A.
name: Montalban, J.
name: Monteiro, M. J. P. F. G.
name: Provost, J.
name: Roxburgh, I. W.
name: Scuflaire, R.
name: Suarez, J. C.
name: Suran, M.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: In order to make astroseismology a powerful tool to explore stellar interiors, different numerical codes should give the same oscillation frequencies for the same input physics. This work is devoted to test, compare and, if needed, optimize the seismic codes used to calculate the eigenfrequencies to be finally compared with observations. The oscillation codes of nine research groups in the field have been used in this study. The same physics has been imposed for all the codes in order to isolate the non-physical dependence of any possible difference. Two equilibrium models with different grids, 2172 and 4042 mesh points, have been used, and the latter model includes an explicit modelling of semiconvection just outside the convective core. Comparing the results for these two models illustrates the effect of the number of mesh points and their distribution in particularly critical parts of the model, such as the steep composition gradient outside the convective core. A comprehensive study of the frequency differences found for the different codes is given as well. These differences are mainly due to the use of different numerical integration schemes. The use of a second-order integration scheme plus a Richardson extrapolation provides similar results to a fourth-order integration scheme. The proper numerical description of the Brunt-Vaisala frequency in the equilibrium model is also critical for some modes. An unexpected result of this study is the high sensitivity of the frequency differences to the inconsistent use of values of the gravitational constant (G) in the oscillation codes, within the range of the experimentally determined ones, which differ from the value used to compute the equilibrium model.
description: 18 pages, 34 figures
Learning Monotone Decision Trees in Polynomial Time
Creators: name: O'Donnell, Ryan
name: Servedio, Rocco A.
Publisher: name: Carnegie Mellon University
Year: 1971
Subjects: subject: 89999 Information and Computing Sciences not elsewhere classified
subject: FOS: Computer and information sciences

description: We give an algorithm that learns any monotone Boolean function f : {−1, 1}n → {−1, 1} to any constant accuracy, under the uniform distribution, in time polynomial in n and in the decision tree size of f. This is the first algorithm that can learn arbitrary monotone Boolean functions to high accuracy, using random examples only, in time polynomial in a reasonable measure of the complexity of f. A key ingredient of the result is a new bound showing that the average sensitivity of any monotone function computed by a decision tree of size s must be at most √log s. This bound has proved to be of independent utility in the study of decision tree complexity [O. Schramm, R. O’Donnell, M. Saks, and R. Servedio, Every decision tree has an influential variable, in Proceedings of the 46th Annual IEEE Symposium on Foundations of Computer Science, IEEE Computer Society, Los Alamitos, CA, 2005, pp. 31–39]. We generalize the basic inequality and learning result described above in various ways—specifically, to partition size (a stronger complexity measure than decision tree size), p-biased measures over the Boolean cube (rather than just the uniform distribution), and real-valued (rather than just Boolean-valued) functions.
Partisan Strategy and the Adoption of Same-Day Registration in the American States
Creators: name: Caron C.
Publisher: name: Cambridge University Press
Year: 2022

description: This study seeks to explain state adoptions of same-day registration (SDR), with a focus on determining whether the Democratic (Republican) Party's support of (resistance to) this impactful voting reform is driven by strategic electoral considerations. I find that states have an increased probability of enacting the reform when legislative Democrats are in the precarious position that comes with having just experienced minority status in one or both chambers. Relatedly, I demonstrate that the presence of a Republican legislature does not make adoption less likely until the size of the Black population reaches a certain threshold. In fact, provided the Black population is small enough, Republican control of the legislature encourages reform. The results offer conflicting evidence, however, that large Latino populations deter the GOP from establishing SDR. Considered together, the results cast doubt on the claim that either party's position is informed by principle alone.
Adsorption energies of carbon, nitrogen, and oxygen atoms on the low-temperature amorphous water ice: A systematic estimation from quantum chemistry calculations
Creators: name: Shimonishi, Takashi
name: Nakatani, Naoki
name: Furuya, Kenji
name: Hama, Tetsuya
Publisher: name: arXiv
Year: 2018
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: We propose a new simple computational model to estimate adsorption energies of atoms and molecules to low-temperature amorphous water ice, and we present the adsorption energies of carbon (3P), nitrogen (4S), and oxygen (3P) atoms based on quantum chemistry calculations. The adsorption energies were estimated to be 14100 +- 420 K for carbon, 400 +- 30 K for nitrogen, and 1440 +-160 K for oxygen. The adsorption energy of oxygen is well consistent with experimentally reported value. We found that the binding of a nitrogen atom is purely physisorption, while that of a carbon atom is chemisorption in which a chemical bond to an O atom of a water molecule is formed. That of an oxygen atom has a dual character both physisorption and chemisorption. The chemisorption of atomic carbon also implies a possibility of further chemical reactions to produce molecules bearing a C-O bond, while it may hinder the formation of methane on water ice via sequential hydrogenation of carbon atoms. These would be of a large impact to the chemical evolution of carbon species in interstellar environments. We also investigated effects of the newly calculated adsorption energies onto chemical compositions of cold dense molecular clouds with the aid of gas-ice astrochemical simulations. We found that abundances of major nitrogen-bearing molecules, such as N2 and NH3, are significantly altered by applying the calculated adsorption energy, because nitrogen atoms can thermally diffuse on surfaces even at 10 K.
description: 14 pages, 9 figures, Accepted for publication in ApJ
Are the halo occupation predictions consistent with large scale galaxy clustering?
Creators: name: Pujol, Arnau
name: Gaztanaga, Enrique
Publisher: name: arXiv
Year: 2013
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: We study how well we can reconstruct the 2-point clustering of galaxies on linear scales, as a function of mass and luminosity, using the halo occupation distribution (HOD) in several semi-analytical models (SAMs) of galaxy formation from the Millennium Simulation. We find that HOD with Friends of Friends groups can reproduce galaxy clustering better than gravitationally bound haloes. This indicates that Friends of Friends groups are more directly related to the clustering of these regions than the bound particles of the overdensities. In general we find that the reconstruction works at best to 5% accuracy: it underestimates the bias for bright galaxies. This translates to an overestimation of 50% in the halo mass when we use clustering to calibrate mass. We also found a degeneracy on the mass prediction from the clustering amplitude that affects all the masses. This effect is due to the clustering dependence on the host halo substructure, an indication of assembly bias. We show that the clustering of haloes of a given mass increases with the number of subhaloes, a result that only depends on the underlying matter distribution. As the number of galaxies increases with the number of subhaloes in SAMs, this results in a low bias for the HOD reconstruction. We expect this effect to apply to other models of galaxy formation, including the real universe, as long as the number of galaxies incresases with the number of subhaloes. We have also found that the reconstructions of galaxy bias from the HOD model fails for low mass haloes with M = 3-5x10^11 Msun/h. We find that this is because galaxy clustering is more strongly affected by assembly bias for these low masses.
description: 14 pages, 10 figures
Learning Mixtures of Ranking Models
Creators: name: Pranjal  Awasthi
name: Avrim  Blum
name: Or  Sheffet
name: Aravindan  Vijayaraghavan
Publisher: name: Carnegie Mellon University
Year: 2006
Subjects: subject: 89999 Information and Computing Sciences not elsewhere classified
subject: FOS: Computer and information sciences

description: This work concerns learning probabilistic models for ranking data in a heterogeneous population. The specific problem we study is learning the parameters of a {\em Mallows Mixture Model}. Despite being widely studied, current heuristics for this problem do not have theoretical guarantees and can get stuck in bad local optima. We present the first polynomial time algorithm which provably learns the parameters of a mixture of two Mallows models. A key component of our algorithm is a novel use of tensor decomposition techniques to learn the top- prefix in both the rankings. Before this work, even the question of {\em identifiability} in the case of a mixture of two Mallows models was unresolved.
Patient preferences for the design of a pharmacy-based colorectal cancer screening program
Creators: name: Shah P.D.
name: Marciniak M.W.
name: Wheeler S.B.
name: Rohweder C.
name: Waters A.R.
name: Odebunmi O.
name: Ferrari R.M.
name: Wangen M.
name: Brenner A.T.
Publisher: name: Springer Science and Business Media Deutschland GmbH
Year: 2023

description: Purpose: To assess preferences for design of a pharmacy-based colorectal cancer (CRC) screening program (PharmFIT™) among screening-eligible adults in the United States (US) and explore the impact of rurality on pharmacy use patterns (e.g., pharmacy type, prescription pick-up preference, service quality rating). Methods: We conducted a national online survey of non-institutionalized US adults through panels managed by Qualtrics, a survey research company. A total of 1,045 adults (response rate 62%) completed the survey between March and April 2021. Sampling quotas matched respondents to the 2010 US Census and oversampled rural residents. We assessed pharmacy use patterns by rurality and design preferences for learning about PharmFIT™; receiving a FIT kit from a pharmacy; and completing and returning the FIT kit. Results: Pharmacy use patterns varied, with some notable differences across rurality. Rural respondents used local, independently owned pharmacies more than non-rural respondents (20.4%, 6.3%, p < 0.001) and rated pharmacy service quality higher than non-rural respondents. Non-rural respondents preferred digital communication to learn about PharmFIT™ (36% vs 47%; p < 0.001) as well as digital FIT counseling (41% vs 49%; p = 0.02) more frequently than rural participants. Preferences for receiving and returning FITs were associated with pharmacy use patterns: respondents who pick up prescriptions in-person preferred to get their FIT (OR 7.7; 5.3–11.2) and return it in-person at the pharmacy (OR 1.7; 1.1–2.4). Conclusion: Pharmacies are highly accessible and could be useful for expanding access to CRC screening services. Local context and pharmacy use patterns should be considered in the design and implementation of PharmFIT™.
EuPRAXIA@SPARC_LAB Design study towards a compact FEL facility at LNF
Creators: name: Ferrario, M.
name: Alesini, D.
name: Anania, M. P.
name: Artioli, M.
name: Bacci, A.
name: Bartocci, S.
name: Bedogni, R.
name: Bellaveglia, M.
name: Biagioni, A.
name: Bisesto, F.
name: Brandi, F.
name: Brentegani, E.
name: Broggi, F.
name: Buonomo, B.
name: Campana, P. L.
name: Campogiani, G.
name: Cannaos, C.
name: Cantarella, S.
name: Cardelli, F.
name: Carpanese, M.
name: Castellano, M.
name: Castorina, G.
name: Lasheras, N. Catalan
name: Chiadroni, E.
name: Cianchi, A.
name: Cimino, R.
name: Ciocci, F.
name: Cirrincione, D.
name: Cirrone, G. A. P.
name: Clementi, R.
name: Coreno, M.
name: Corsini, R.
name: Croia, M.
name: Curcio, A.
name: Costa, G.
name: Curatolo, C.
name: Cuttone, G.
name: Dabagov, S.
name: Dattoli, G.
name: D'Auria, G.
name: Debrot, I.
name: Diomede, M.
name: Drago, A.
name: Di Giovenale, D.
name: Di Mitri, S.
name: Di Pirro, G.
name: Esposito, A.
name: Faiferri, M.
name: Ficcadenti, L.
name: Filippi, F.
name: Frasciello, O.
name: Gallo, A.
name: Ghigo, A.
name: Giannessi, L.
name: Giribono, A.
name: Gizzi, L.
name: Grudiev, A.
name: Guiducci, S.
name: Koester, P.
name: Incremona, S.
name: Iungo, F.
name: Labate, L.
name: Latina, A.
name: Licciardi, S.
name: Lollo, V.
name: Lupi, S.
name: Manca, R.
name: Marcelli, A.
name: Marini, M.
name: Marocchino, A.
name: Marongiu, M.
name: Martinelli, V.
name: Masciovecchio, C.
name: Mastino, C.
name: Michelotti, A.
name: Milardi, C.
name: Minicozzi, V.
name: Mira, F.
name: Morante, S.
name: Mostacci, A.
name: Nguyen, F.
name: Pagnutti, S.
name: Pellegrino, L.
name: Petralia, A.
name: Petrillo, V.
name: Piersanti, L.
name: Pioli, S.
name: Polese, D.
name: Pompili, R.
name: Pusceddu, F.
name: Ricci, A.
name: Ricci, R.
name: Rochow, R.
name: Romeo, S.
name: Rosenzweig, J. B.
name: Conti, M. Rossetti
name: Rossi, A. R.
name: Rotundo, U.
name: Sabbatini, L.
name: Sabia, E.
name: Plannell, O. Sans
name: Schulte, D.
name: Scifo, J.
name: Scuderi, V.
name: Serafini, L.
name: Spataro, B.
name: Stecchi, A.
name: Stella, A.
name: Shpakov, V.
name: Stellato, F.
name: Turco, E.
name: Vaccarezza, C.
name: Vacchi, A.
name: Vannozzi, A.
name: Variola, A.
name: Vescovi, S.
name: Villa, F.
name: Wuensch, W.
name: Zigler, A.
name: Zobov, M.
Publisher: name: arXiv
Year: 2018
Subjects: subject: Accelerator Physics (physics.acc-ph)
subject: FOS: Physical sciences

description: On the wake of the results obtained so far at the SPARC\_LAB test-facility at the Laboratori Nazionali di Frascati (Italy), we are currently investigating the possibility to design and build a new multi-disciplinary user-facility, equipped with a soft X-ray Free Electron Laser (FEL) driven by a $\sim$1 GeV high brightness linac based on plasma accelerator modules. This design study is performed in synergy with the EuPRAXIA design study. In this paper we report about the recent progresses in the on going design study of the new facility.
Gauge-Higgs Unification at LHC
Creators: name: Maru, Nobuhito
name: Okada, Nobuchika
Publisher: name: arXiv
Year: 2007
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: Higgs boson production by the gluon fusion and its decay into two photons at the LHC are investigated in the context of the gauge-Higgs unification scenario. The qualitative behaviors for these processes in the gauge-Higgs unification are quite distinguishable from those of the Standard Model and the universal extra dimension scenario because of the overall sign difference for the effective couplings induced by one-loop corrections through Kaluza-Klein (KK) modes. For the KK mode mass smaller than 1 TeV, the Higgs productions cross section and its branching ratio into two photons are sizably deviated from those in the Standard Model. Associated with the discovery of Higgs boson, this deviation may be measured at the LHC.
description: 16 pages, 4 figures, references added, a few comments added in the final part of the main text, a final version to appear in PRD
Predicting the existence and prevalence of the US water quality trading markets
Creators: name: Timmerman D.
name: BenDor T.K.
name: Madsen B.
name: Branham J.
Publisher: name: MDPI AG
Year: 2021

description: Water quality trading (WQT) programs aim to efficiently reduce pollution through marketbased incentives. However, WQT performance is uneven; while several programs have found frequent use, many experience operational barriers and low trading activity. What factors are associated with WQT existence, prevalence, and operational stage? In this paper, we present and analyze the most complete database of WQT programs in the United States (147 programs/policies), detailing market designs, trading mechanisms, traded pollutants, and segmented geographies in 355 distinct markets. We use hurdle models (joint binary and count regressions) to evaluate markets in concert with demographic, political, and environmental covariates. We find that only one half of markets become operational, new market establishment has declined since 2013, and market existence and prevalence has nuanced relationships with local political ideology, urban infrastructure, waterway and waterbody extents, regulated environmental impacts, and historic waterway impairment. Our findings suggest opportunities for better projecting program need and targeting program funding.
Economy-Wide Effects of Agriculture Technology Innovations in Burkina Faso
Creators: name: Fall, Cheickh Sadibou
name: Fofana, Ismaël
name: Traoré, Fousseini
name: Fall, Cheickh Sadibou
name: Fofana, Ismaël
name: Traoré, Fousseini
Publisher: name: Unknown
Year: 2019
Subjects: subject: Agricultural and Food Policy
subject: Research and Development/Tech Change/Emerging Technologies
subject: Research Methods/ Statistical Methods
subject: agricultural innovation
subject: productivity growth
subject: CGE modelling

description: In this study, we develop an economy wide model for Burkina Faso to assess the most promising opportunities for technological innovations to enhance maize production and productivity and their economywide effects. We simulate the implementation of two agricultural technological innovations using a customized Computable General Equilibrium (CGE) model. One innovation is an improvement of famers’ efficiency, i.e. operating on the production frontier (typology scenario). The other shifts the frontier itself and involves the introduction of a new cultivar (crop scenario). The model has been made agriculture-focused through the following features: separate agriculture and non-agriculture labor markets, separate urban and rural representative household groups, including welfare analysis and the imperfect integration of land markets, i.e. the land market is split into agroecological zones (AEZs). The CGE model is a single-country, multi-sector, multi-market model and solved for multiple periods in a recursive manner, ten years in the case of Burkina Faso. The CGE model is calibrated using a 2013 Social Accounting Matrix (SAM). The SAM has several interesting features with regards to agricultural modelling and highlights the focus crops for Burkina Faso and particularly maize, which is the focus crop of this study. The results showed prospects of gains for the economy with the introduction of technological innovations in the maize value chain in Burkina Faso. Welfare analyses performed showed welfare gains for all household profiles studied. In other words, the introduction of innovations in the maize value chain seems to be pro-poor. Finally, the study found that a total increase of about 2% of public expenditure in this sector over 10 years is required to achieve the simulated results.
Quantization of Perturbations in an Inflating Elastic Solid
Creators: name: Sitwell, Michael
name: Sigurdson, Kris
Publisher: name: arXiv
Year: 2013
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: A sufficiently rigid relativistic elastic solid can be stable for negative pressure values and thus is capable of driving a stage of accelerated expansion. If a relativistic elastic solid drove an inflationary stage in the early Universe, quantum mechanically excited perturbations would arise in the medium. We quantize the linear scalar and tensor perturbations and investigate the observational consequences of having such an inflationary period. We find that slowly varying sound speeds of the perturbations and a slowing varying equation of state of the solid can produce a slightly red-tilted scalar power spectrum that agrees with current observational data. Even in the absence of nonadiabatic pressures, perturbations evolve on superhorizon scales, due to the shear stresses within the solid. As such, the spectra of perturbations are in general sensitive to the details of the end of inflation and we characterize this dependence. Interestingly, we uncover here accelerating solutions for elastic solids with (1 + P/ρ) significantly greater than 0 that nevertheless have nearly scale-invariant scalar and tensor spectra. Beyond theoretical interest, this may allow for the possibility of viable inflationary phenomenology relatively far from the de Sitter regime.
description: 17 pages, 1 figure, 1 table
Learning Mixtures of Product Distributions over Discrete Domains
Creators: name: Feldman, Jon
name: O'Donnell, Ryan
name: Servedio, Rocco A.
Publisher: name: Carnegie Mellon University
Year: 1988
Subjects: subject: 89999 Information and Computing Sciences not elsewhere classified
subject: FOS: Computer and information sciences

description: We consider the problem of learning mixtures of product distributions over discrete domains in the distribution learning framework introduced by Kearns et al. [Proceedings of the 26th Annual Symposium on Theory of Computing (STOC), Montr´eal, QC, 1994, ACM, New York, pp. 273–282]. We give a poly(n/ε)-time algorithm for learning a mixture of k arbitrary product distributions over the n-dimensional Boolean cube {0, 1}n to accuracy ε, for any constant k. Previous polynomial-time algorithms could achieve this only for k = 2 product distributions; our result answers an open question stated independently in [M. Cryan, Learning and Approximation Algorithms for Problems Motivated by Evolutionary Trees, Ph.D. thesis, University of Warwick, Warwick, UK, 1999] and [Y. Freund and Y. Mansour, Proceedings of the 12th Annual Conference on Computational Learning Theory, 1999, pp. 183–192]. We further give evidence that no polynomial-time algorithm can succeed when k is superconstant, by reduction from a difficult open problem in PAC (probably approximately correct) learning. Finally, we generalize our poly(n/ε)-time algorithm to learn any mixture of k = O(1) product distributions over {0, 1, . . . , b − 1}n, for any b = O(1).
Invariant Checking of NRA Transition Systems via Incremental Reduction to LRA with EUF
Creators: name: Cimatti, Alessandro
name: Griggio, Alberto
name: Irfan, Ahmed
name: Roveri, Marco
name: Sebastiani, Roberto
Publisher: name: arXiv
Year: 2018
Subjects: subject: Logic in Computer Science (cs.LO)
subject: FOS: Computer and information sciences

description: Model checking invariant properties of designs, represented as transition systems, with non-linear real arithmetic (NRA), is an important though very hard problem. On the one hand NRA is a hard-to-solve theory; on the other hand most of the powerful model checking techniques lack support for NRA. In this paper, we present a counterexample-guided abstraction refinement (CEGAR) approach that leverages linearization techniques from differential calculus to enable the use of mature and efficient model checking algorithms for transition systems on linear real arithmetic (LRA) with uninterpreted functions (EUF). The results of an empirical evaluation confirm the validity and potential of this approach.
Granada oscillation Code (GraCo)
Creators: name: Moya, A.
name: Garrido, R.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: Granada oscillation code (GraCo) is a software constructed to compute adiabatic and non-adiabatic oscillation eigenfunctions and eigenvalues. The adiabatic version gives the standard numerical resolution, and also the Richardson extrapolation, different sets of eigenfunctions, different outer mechanical boundary conditions or different integration variables. The non-adiabatic version can include the atmosphere-pulsation interaction. The code has been used for intensive studies of δScuti, γDoradus, βCeph., SdO and, SdB stars. The non adiabatic observables ``phase-lag'' (the phase between the effective temperature variations and the radial displacement) and δT_{eff}/ T_{eff} (relative surface temperature variation) can help to the modal identification. These quantities together with the energy balance (``growth rate'') provide useful additional information to the adiabatic resolution (eigenfrequencies and eigenfunctions).
description: 4 pages, 5 figures
title: ADCO, Grènetier de Cîteaux : comptes (1497-1504) (11 H 1172), f. 00291
Creators: name: de la Côte-d'Or, Archives départementales
name: Archives Départementales De La Côte-D'Or
name: Petot, Frédérique
name: Projet CBMA
name: CBMA/CG21/F.PETOT/2019
Publisher: name: NAKALA - https://nakala.fr (Huma-Num - CNRS)
publisherIdentifier: https://ror.org/04ces3204
publisherIdentifierScheme: ROR
Year: 2020
Subjects: subject: Corpus Burgundiae Medii Aevi
subject: Chartes de la Bourgogne du Moyen Âge
subject: LaMOP
subject: Laboratoire de Médiévistique Occidentale de Paris
subject: comptes

description: Grènetier de Cîteaux : comptes (1497-1504), Archives départementales de la Côte-d'Or, (11 H 1172). Numérisation en mode image.
description: Relation: http://www.cbma-project.eu/
description: Bibliographic citation: Grènetier de Cîteaux : comptes (1497-1504), Archives départementales de la Côte-d'Or, (11 H 1172), f. 00291, in Projet CBMA - Corpus Burgundiae Medii Aevi \[Ressource en ligne\], https:// manuscrits.cbma-project.eu/
description: Provenance: https://www.geonames.org/3024876
description: Provenance: http://www.idref.fr/030974844/id
description: Provenance: https://catalogue.bnf.fr/ark:/12148/cb12228351v
description: Provenance: abbaye de Cîteaux
description: Provenance: http://www.wikidata.org/entity/Q843261
Learning Juntas
Creators: name: Mossel, Elchanan
name: O'Donnell, Ryan
name: Servedio, Rocco A.
Publisher: name: Carnegie Mellon University
Year: 1985
Subjects: subject: 89999 Information and Computing Sciences not elsewhere classified
subject: FOS: Computer and information sciences

description: We consider a fundamental problem in computational learning theory: learning an arbitrary Boolean function that depends on an unknown set of k out of n Boolean variables.
The MaGICC Baryon Cycle: The Enrichment History of Simulated Disc Galaxies
Creators: name: Brook, C. B.
name: Stinson, G.
name: Gibson, B. K.
name: Shen, S.
name: Macciò, A. V.
name: Wadsley, J.
name: Quinn, T.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: Using cosmological galaxy formation simulations from the MaGICC project, spanning more than three magnitudes in stellar mass (~10^7-3x10^{10} Msun), we trace the baryonic cycle of infalling gas from the virial radius through to its participation in the star formation process. An emphasis is placed upon the temporal history of chemical enrichment during its passage through the corona and CGM. We derive the distributions of time between gas crossing the virial radius and being accreted to the star forming region (which allows mixing within the corona), as well as the time between gas being accreted to the star forming region and then forming stars (which allows mixing within the disc). Significant numbers of stars are formed from gas that cycles back through the hot halo after first accreting to the star forming region. Gas entering high mass galaxies is pre-enriched in low mass proto-galaxies prior to entering the virial radius of the central progenitor, with only small amounts of primordial gas accreted, even at high redshift (z~5). After entering the virial radius, significant further enrichment occurs prior to the accretion of the gas to the star forming region, with gas that is feeding the star forming region surpassing 0.1Z by z=0. Mixing with halo gas, itself enriched via galactic fountains, is thus crucial in determining the metallicity at which gas is accreted to the disc. The lowest mass simulation (Mvir~2x10^{10}Msun, with M*~10^7Msun), by contrast, accretes primordial gas through the virial radius and onto the disc at all times. Much like the classical analytical solutions to the `G-dwarf problem', overproduction of low-metallicity stars is ameliorated by the inefficiency of star formation. Finally, gas outflow/metal removal rates from star forming regions as a function of galactic mass are presented.
description: published in MNRAS
Search For Gravitational Redshifted Absorption Lines In LMXB Serpens X-1
Creators: name: Yoneda, Hiroki
name: Done, Chris
name: Paerels, Frits
name: Takahashi, Tadayuki
name: Watanabe, Shin
Publisher: name: arXiv
Year: 2017
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: Nuclear Experiment (nucl-ex)
subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: The equation of state for ultra-dense matter can be tested from observations of the ratio of mass to radius of neutron stars. This could be measured precisely from the redshift of a narrow line produced on the surface. X-rays bursts have been intensively searched for such features, but so far without detection. Here instead we search for redshifted lines in the persistent emission, where the accretion flow dominates over the surface emission. We discuss the requirements for narrow lines to be produced, and show that narrow absorption lines from highly ionized iron can potentially be observable in accreting low mass X-ray binaries (low B field) which have either low spin or low inclination so that Doppler broadening is small. This selects Serpens X-1 as the only potential candidate persistent LMXB due to its low inclination. Including surface models in the broad band accretion flow model predicts that the absorption line from He-like iron at 6.7 keV should be redshifted to $\sim$ 5.1 - 5.7 keV (10 - 15 km for $1.4\mathrm{M_\odot}$) and have an equivalent width of 0.8 - 8.0 eV for surface temperatures of 7 - 10 $\times$ 10$^6$ K. We use the high resolution Chandra grating data to give a firm upper limit of 2 - 3 eV for an absorption line at $\sim 5$ keV. We discuss possible reasons for this lack of detection (the surface temperature and the geometry of the boundary layer etc.). Future instruments with better sensitivity are required in order to explore the existence of such features.
description: 11 pages, 12 figures, accepted for publication in MNRAS
Rethinking the Normal Vote, the Personal Vote, and the Impact of Legislative Professionalism in U.S. State Legislative Elections
Creators: name: Carsey T.M.
name: Winburn J.
name: Berry W.D.
Publisher: name: SAGE Publications Inc.
Year: 2017

description: Legislators might rely on their partisan base for electoral support—what scholars call their normal vote—or they may cultivate support among nonpartisans through casework or constituency service—what scholars call a personal vote. Previous research frequently argues that legislators face a tradeoff between pursuing the normal vote and a personal vote as traditionally defined, often focusing on resources used by incumbents to build their personal vote. In contrast, we argue that securing the support of partisans and nonpartisans alike should be evaluated based on how a legislator performs in office, and that the so-called normal and personal vote need not be viewed as in conflict. We evaluate our claims using data from state legislative elections following redistricting, focusing on legislative professionalism to measure the resources available to incumbents that they might use to cultivate a personal note.
Large Cardinals and Definable Well-Orderings of the Universe
Creators: name: Brooke-Taylor, Andrew D.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Logic (math.LO)
subject: FOS: Mathematics
subject: 03E35, 03E55, 03E25

description: We use a reverse Easton forcing iteration to obtain a universe with a definable well-ordering, while preserving the GCH and proper classes of a variety of very large cardinals. This is achieved by coding using the principle diamond star at a proper class of successor cardinals.
description: 18 pages, submitted with Kurt Goedel Centenary Research Prize Fellowship application
Scholarly attention and the limited internationalization of US social science
Creators: name: Kurzman C.
Publisher: name: SAGE Publications Ltd
Year: 2017

description: What parts of the world does American social science consider worthy of scholarly attention? Analyzing the geographic focus of more than 2 million bibliographic records of journal articles, books, and dissertations, the study finds a weak trend toward internationalization of US social-scientific attention over the past half-century. Moreover, the share of scholarly attention devoted to particular regions has remained surprisingly stable over this period, with Western Europe remaining the primary focus of internationally-oriented work. Shifts in US national security priorities, international trade, student demand, and demographic characteristics account for only a small portion of the variation in the rate of social-scientific publications on world regions, lending credibility to the view that scholarly attention is shaped in large part by inertia that is built into academic institutions and cultures.
On Uniform Admissibility of Unitary and Smooth Representations
Creators: name: First, Uriya A.
name: Rüd, Thomas
Publisher: name: arXiv
Year: 2018
Subjects: subject: Representation Theory (math.RT)
subject: Group Theory (math.GR)
subject: FOS: Mathematics
subject: 22D10, 22D12

description: Let $G$ be a locally compact totally disconnected topological group. Under a necessary mild assumption, we show that the irreducible unitary representations of $G$ are uniformly admissible if and only if the irreducible smooth representations of $G$ are uniformly admissible. We also show that the latter property is inherited by finite-index subgroups and overgroups of $G$.
description: 7 pages; comments are welcome
Zinc oxide induces the stringent response and major reorientations in the central metabolism of Bacillus subtilis
Creators: name: Luche, Sylvie
name: Eymard-Vernain, Elise
name: Diemer, Hélène
name: Van Dorsselaer, Alain
name: Rabilloud, Thierry
name: Lelong, Cécile
Publisher: name: arXiv
Year: 2018
Subjects: subject: Genomics (q-bio.GN)
subject: FOS: Biological sciences

description: Microorganisms, such as bacteria, are one of the first targets of nanoparticles in the environment. In this study, we tested the effect of two nanoparticles, ZnO and TiO2, with the salt ZnSO4 as the control, on the Gram-positive bacterium Bacillus subtilis by 2D gel electrophoresis-based proteomics. Despite a significant effect on viability (LD50), TiO2 NPs had no detectable effect on the proteomic pattern, while ZnO NPs and ZnSO4 significantly modified B. subtilis metabolism. These results allowed us to conclude that the effects of ZnO observed in this work were mainly attributable to Zn dissolution in the culture media. Proteomic analysis highlighted twelve modulated proteins related to central metabolism: MetE and MccB (cysteine metabolism), OdhA, AspB, IolD, AnsB, PdhB and YtsJ (Krebs cycle) and XylA, YqjI, Drm and Tal (pentose phosphate pathway). Biochemical assays, such as free sulfhydryl, CoA-SH and malate dehydrogenase assays corroborated the observed central metabolism reorientation and showed that Zn stress induced oxidative stress, probably as a consequence of thiol chelation stress by Zn ions. The other patterns affected by ZnO and ZnSO4 were the stringent response and the general stress response. Nine proteins involved in or controlled by the stringent response showed a modified expression profile in the presence of ZnO NPs or ZnSO4: YwaC, SigH, YtxH, YtzB, TufA, RplJ, RpsB, PdhB and Mbl. An increase in the ppGpp concentration confirmed the involvement of the stringent response during a Zn stress. All these metabolic reorientations in response to Zn stress were probably the result of complex regulatory mechanisms including at least the stringent response via YwaC.
Comparison of the Achievable Rates in OFDM and Single Carrier Modulation with I.I.D. Inputs
Creators: name: Carmon, Yair
name: Shamai, Shlomo
name: Weissman, Tsachy
Publisher: name: arXiv
Year: 2013
Subjects: subject: Information Theory (cs.IT)
subject: FOS: Computer and information sciences

description: We compare the maximum achievable rates in single-carrier and OFDM modulation schemes, under the practical assumptions of i.i.d. finite alphabet inputs and linear ISI with additive Gaussian noise. We show that the Shamai-Laroia approximation serves as a bridge between the two rates: while it is well known that this approximation is often a lower bound on the single-carrier achievable rate, it is revealed to also essentially upper bound the OFDM achievable rate. We apply Information-Estimation relations in order to rigorously establish this result for both general input distributions and to sharpen it for commonly used PAM and QAM constellations. To this end, novel bounds on MMSE estimation of PAM inputs to a scalar Gaussian channel are derived, which may be of general interest. Our results show that, under reasonable assumptions, optimal single-carrier schemes may offer spectral efficiency significantly superior to that of OFDM, motivating further research of such systems.
description: Revised version of IEEE IT submission. Includes new results on uniform inputs
What Happens When Insurers Make Insurance Laws? State Legislative Agendas and the Occupational Makeup of Government
Creators: name: Hansen E.R.
name: Carnes N.
name: Gray V.
Publisher: name: SAGE Publications Inc.
Year: 2019

description: Do the occupational backgrounds of politicians affect the government’s agenda? Businesses have long thought so. The first occupational data on state legislators were collected by the Insurance Information Institute, an interest group representing major insurance companies. In this paper, we test one potential motive for these kinds of efforts: the idea that the occupational makeup of governments affects the agendas they pursue, an argument that has been largely neglected in research on politicians’ occupational backgrounds. We focus here on the insurance industry. Using original data, we find that state legislatures with more former insurers consider fewer bills regulating insurance (negative agenda control), that former insurers play a disproportionate role in drafting the insurance bills that are introduced (positive agenda control), and that the bills former insurers introduce tend to be more favorable to the industry than those that their colleagues introduce (positive agenda control). The occupational makeup of legislatures may indeed affect their agendas, as industry groups have long suspected.
Satisfiability Modulo Transcendental Functions via Incremental Linearization
Creators: name: Cimatti, Alessandro
name: Griggio, Alberto
name: Irfan, Ahmed
name: Roveri, Marco
name: Sebastiani, Roberto
Publisher: name: arXiv
Year: 2018
Subjects: subject: Logic in Computer Science (cs.LO)
subject: FOS: Computer and information sciences

description: In this paper we present an abstraction-refinement approach to Satisfiability Modulo the theory of transcendental functions, such as exponentiation and trigonometric functions. The transcendental functions are represented as uninterpreted in the abstract space, which is described in terms of the combined theory of linear arithmetic on the rationals with uninterpreted functions, and are incrementally axiomatized by means of upper- and lower-bounding piecewise-linear functions. Suitable numerical techniques are used to ensure that the abstractions of the transcendental functions are sound even in presence of irrationals. Our experimental evaluation on benchmarks from verification and mathematics demonstrates the potential of our approach, showing that it compares favorably with delta-satisfiability /interval propagation and methods based on theorem proving.
title: ADCO, Comptes du Petit-Cîteaux (1477-1491) (11 H 1179), f. 00104
Creators: name: de la Côte d'Or, Archives départementales
name: Petot, Frédéric
name: Archives Départementales De La Côte-D'Or
name: Archives Départementales De La Côte D'Or
name: Petot, Frédérique
name: Projet CBMA
name: CBMA/CG21/F.PETOT/2019
Publisher: name: NAKALA - https://nakala.fr (Huma-Num - CNRS)
publisherIdentifier: https://ror.org/04ces3204
publisherIdentifierScheme: ROR
Year: 2020
Subjects: subject: cartulaire
subject: comptes
subject: Corpus Burgundiae Medii Aevi
subject: Chartes de la Bourgogne du Moyen Âge
subject: LaMOP
subject: Laboratoire de Médiévistique Occidentale de Paris

description: Comptes du Petit-Cîteaux (1477-1491), Archives départementales de la Côte-d'Or, (11 H 1179). Numérisation en mode image.
description: Relation: http://www.cbma-project.eu/
description: Bibliographic citation: Comptes du Petit-Cîteaux (1477-1491), Archives départementales de la Côte-d'Or, (11 H 1179), f. 00104, in Projet CBMA - Corpus Burgundiae Medii Aevi [Ressource en ligne], https://manuscrits.cbma-project.eu/
description: Provenance: https://www.geonames.org/3024876
description: Provenance: http://www.idref.fr/030974844/id
description: Provenance: https://catalogue.bnf.fr/ark:/12148/cb12228351v
description: Provenance: abbaye de Cîteaux
description: Provenance: http://www.wikidata.org/entity/Q843261
Learning intersections and thresholds of halfspaces
Creators: name: Klivans, Adam R.
name: O'Donnell, Ryan
name: Servedio, Rocco A.
Publisher: name: Carnegie Mellon University
Year: 1984
Subjects: subject: 89999 Information and Computing Sciences not elsewhere classified
subject: FOS: Computer and information sciences

description: We give the first polynomial time algorithm to learn any function of a constant number of halfspaces under the uniform distribution on the Boolean hypercube to within any constant error parameter. We also give the first quasipolynomial time algorithm for learning any Boolean function of a polylog number of polynomial-weight halfspaces under any distribution on the Boolean hypercube. As special cases of these results we obtain algorithms for learning intersections and thresholds of halfspaces. Our uniform distribution learning algorithms involve a novel non-geometric approach to learning halfspaces; we use Fourier techniques together with a careful analysis of the noise sensitivity of functions of halfspaces. Our algorithms for learning under any distribution use techniques from real approximation theory to construct low-degree polynomial threshold functions. Finally, we also observe that any function of a constant number of polynomial-weight halfspaces can be learned in polynomial time in the model of exact learning from membership and equivalence queries.
Land Cover Classification of Complex Agroecosystems in the Non-Protected Highlands of the Galapagos Islands
Creators: name: Rivas-Torres, Gonzalo
name: Arce-Nazario, Javier
name: Benítez, Fátima L
name: Sampedro, Carolina
name: Laso, Francisco J.
Publisher: name: MDPI
Year: 2020

description: The humid highlands of the Galapagos are the islands’ most biologically productive regions
and a key habitat for endemic animal and plant species. These areas are crucial for the region’s food
security and for the control of invasive plants, but little is known about the spatial distribution of
its land cover. We generated a baseline high-resolution land cover map of the agricultural zones
and their surrounding protected areas. We combined the high spatial resolution of PlanetScope
images with the high spectral resolution of Sentinel-2 images in an object-based classification using a
RandomForest algorithm. We used images collected with an unmanned aerial vehicle (UAV) to verify
and validate our classified map. Despite the astounding diversity and heterogeneity of the highland
landscape, our classification yielded useful results (overall Kappa: 0.7, R2: 0.69) and revealed that
across all four inhabited islands, invasive plants cover the largest fraction (28.5%) of the agricultural
area, followed by pastures (22.3%), native vegetation (18.6%), food crops (18.3%), and mixed forest
and pioneer plants (11.6%). Our results are consistent with historical trajectories of colonization and
abandonment of the highlands. The produced dataset is designed to suit the needs of practitioners of
both conservation and agriculture and aims to foster collaboration between the two areas.
High performance position-sensitive-detector based on graphene-silicon heterojunction
Creators: name: Wang, Wenhui
name: Yan, Zhenzhong
name: Zhang, Jinfeng
name: Lu, Junpeng
name: Qin, Hua
name: Ni, Zhenhua
Publisher: name: arXiv
Year: 2017
Subjects: subject: Applied Physics (physics.app-ph)
subject: Materials Science (cond-mat.mtrl-sci)
subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: Position-sensitive-detectors (PSDs) based on lateral photoeffect have been widely used in diverse applications, including optical engineering, aerospace and military fields. With increasing demands in long working distance, low energy consumption, and weak signal sensing systems, the poor responsivity of conventional Silicon-based PSDs has become a bottleneck limiting their applications. Herein, we propose a high-performance passive PSD based on graphene-Si heterostructure. The graphene is adapted as a photon absorbing and charge separation layer working together with Si as a junction, while the high mobility provides promising ultra-long carrier diffusion length and facilitates large active area of the device. A PSD with working area of 8 mm x 8 mm is demonstrated to present excellent position sensitivity to weak light at nWs level (much better than the limit of ~μWs of Si p-i-n PSDs). More importantly, it shows very fast response and low degree of non-linearity of ~3%, and extends the operating wavelength to the near infrared (IR) region (1319 and 1550 nm). This work therefore provides a new strategy for high performance and broadband PSDs.
description: 25 pages, 13 figures, to appear in Optica
Diversity in Party Leadership in State Legislatures
Creators: name: Hansen, Eric R.
name: Clark, Christopher J.
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2020

description: Members of historically underrepresented groups—women, African Americans, Latinos, and workers—are serving in American legislatures in increasing numbers. However, legislators wield substantially greater power in the lawmaking process when they hold leadership positions. Incorporation of these groups into leadership positions could indicate fuller political representation, but scholars to date have not assessed how well these groups are represented in leadership. We analyze original data describing the backgrounds of approximately 2,200 leaders in 30 states between 2003 and 2014. The data show that, on average across states, members of these groups are as well represented in state legislative leadership positions as they are in rank-and-file membership, but there is substantial variation across states and across parties. We then ask what factors might explain this variation and explore institutional characteristics, like the number of leadership positions or leader selection methods. The results show that legislative chambers with a higher number of leadership posts tend to have more women in leadership, and that selection through elections is associated with decreased African American presence in leadership. The findings have implications for minority incorporation and influence in American politics.