cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Additional file 1 of What are the inpatient and day case costs following primary total hip replacement of patients treated for prosthetic joint infection: a matched cohort study using linked data from the National Joint Registry and Hospital Episode Statistics
Creators: name: Garfield, Kirsty
name: Noble, Sian
name: Lenguerrand, Erik
name: Whitehouse, Michael R.
name: Sayers, Adrian
name: Reed, Mike R.
name: Blom, Ashley W.
Publisher: name: figshare
Year: 2020
Subjects: subject: Medicine
subject: Ecology
subject: FOS: Biological sciences
subject: 69999 Biological Sciences not elsewhere classified
subject: Marine Biology
subject: Science Policy
subject: 60506 Virology
subject: Computational Biology

description: Additional file 1: Summary of model specification. Figure S1. Deviance residuals and percentile plot of the generalised linear model part of the 5-year cost model. Figure S2. Proportion of patients with zero costs over the five years and each year post primary THR, by revised PJI and comparator groups.
Thermodynamics of a rotating hadron resonance gas with van der Waals interaction
Creators: name: Pradhan, Kshitish Kumar
name: Sahoo, Bhagyarathi
name: Sahu, Dushmanta
name: Sahoo, Raghunath
Publisher: name: arXiv
Year: 2023
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Experiment (hep-ex)
subject: Nuclear Experiment (nucl-ex)
subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: Studying the thermodynamics of the systems produced in ultra-relativistic heavy-ion collisions is crucial in understanding the QCD phase diagram. Recently, a new avenue has opened regarding the implications of large initial angular momentum and subsequent vorticity in the medium evolution in high-energy collisions. This adds a new type of chemical potential into the partonic and hadronic systems, called the rotational chemical potential. We study the thermodynamics of an interacting hadronic matter under rotation, formed in an ultra-relativistic collision. We introduce attractive and repulsive interactions through the van der Waals equation of state. Thermodynamic properties like the pressure ($P$), energy density ($\varepsilon$), entropy density ($s$), trace anomaly ($(\varepsilon - 3P)/T^{4}$), specific heat ($c_{\rm v}$) and squared speed of sound ($c_{\rm s}^{2}$) are studied as functions of temperature ($T$) for zero and finite rotation chemical potential. The conserved charge fluctuations, which can be quantified by their respective susceptibilities, are also studied. The rotational (spin) density corresponding to the rotational chemical potential is explored. In addition, we explore the possible liquid-gas phase transition in the hadron gas with van der Waals interaction in the $T$ -- $ω$ phase space.
description: 11 pages and 6 captioned figures. Same as the published version in EPJC
Ion Specificity and Micellization of Ionic Surfactants: A Monte Carlo Study
Creators: name: Santos, Alexandre P. dos
name: Figueiredo, Wagner
name: Levin, Yan
Publisher: name: arXiv
Year: 2014
Subjects: subject: Chemical Physics (physics.chem-ph)
subject: Soft Condensed Matter (cond-mat.soft)
subject: Biological Physics (physics.bio-ph)
subject: FOS: Physical sciences

description: We develop a simulation method which allows us to calculate the critical micelle concentrations for ionic surfactants in the presence of different salts. The results are in good agreement with the experimental data. The simulations are performed on a simple cubic lattice. The anionic interactions with the alkyl chains are taken into account based on the previously developed theory of the interfacial tensions of hydrophobic interfaces: the kosmotropic anions do not interact with the hydrocarbon tails of ionic surfactants, while chaotropic anions interact with the alkyl chains through a dispersion potential proportional to the anionic polarizability.
description: Langmuir, Just Accepted Manuscript
Zilles, Urbano, O racional e o místico em Wittgenstein, 2.ª ed., Col. ≪Filosofia≫ 11, EDIPUCRS, Porto Alegre 1994, 96 pp., 210x140.
Creators: name: Coutinho, Jorge
Publisher: name: Theologica
Year: 1998

description: Theologica, v. 33 n. 1 (1998): O Espírito, promessa do Pai (Lc 24,49) | Arte hoje na Igreja
Zilles, Urbano, Fé e razão no pensamento medieval, 2.ª ed., ≪Filosofia≫ 1, EDIPUCRS, Porto Alegre 1996, 166 pp., 210x140.
Creators: name: Coutinho, Jorge
Publisher: name: Theologica
Year: 1998

description: Theologica, v. 33 n. 1 (1998): O Espírito, promessa do Pai (Lc 24,49) | Arte hoje na Igreja
Bayesian analysis of nonstationary extremes
Creators: name: Lee, Junho
Publisher: name: The University of Edinburgh
Year: 2022
Subjects: Bayesian nonparametrics
Extremes

description: Extreme value theory (EVT) provides theoretical foundation to assess the probability of rare and extreme events. This thesis provides novel Bayesian semiparametric models for capturing the behaviour of extreme events and extremal dependence with an emphasis on covariate-adjusted variation. We fist develop Bayesian semiparametric inferences for heteroscedastic extremes. The proposed model is based on an extreme value index regression and a proportional tails model, and assesses how the magnitude and frequency of the extreme values evolve according to a covariate. We present inference methods about the extreme value index and the scedasis density function in the global setting, and then extend the methods to the conditional setting using the dependent Bernstein{Dirichlet process. Our methods are applied to extreme currency demand in Portugal. The signatures of the fitted scedasis densities of currency demand across di erent denominations reveal some interesting insights into the dynamics governing currency demand during periods of economic stress. We extend our scope of analysis into multivariate extremes and propose a Bayesian model that learns about the dynamics governing joint extreme values over time. Dual time-varying measures for pairwise extremal dependence are proposed to assess the strength of dependence of joint extreme values over time under the settings of asymptotic dependence and asymptotic independence. These measures are modelled via a suitable class of generalised additive models (GAMs) and the dynamics of underlying extremal dependence structure is tracked by Bayesian penalised splines. The application to major stock market indices reveals complex patterns of extremal dependence between countries over the last three decades, including transitions from asymptotic dependence to asymptotic independence. For a full description of dependence structure between multivariate extremes, a Bayesian inference for extreme-value copulae is proposed along with the dependent Bernstein Dirichlet process prior with the mean constraints. The proposed method rst recovers conditional angular densities (angular surface) and then estimate the extreme-value copula which represent the extremal dependence between two random variables conditioning on a covariate. Simulation studies and an application to the extremal dependence between cryptocurrencies over time, are also provided to evaluate our methods. Finally, we discuss future extensions in the direction of a general and exible modelling framework.
The Kuramoto-Sivashinsky Equation
Creators: name: Baez, John C.
name: Huntsman, Steve
name: Weis, Cheyne
Publisher: name: arXiv
Year: 2022
Subjects: subject: Analysis of PDEs (math.AP)
subject: Dynamical Systems (math.DS)
subject: Chaotic Dynamics (nlin.CD)
subject: FOS: Mathematics
subject: FOS: Physical sciences

description: The Kuramoto-Sivashinsky equation was introduced as a simple 1-dimensional model of instabilities in flames, but it turned out to mathematically fascinating in its own right. One reason is that this equation is a simple model of Galilean-invariant chaos with an arrow of time. Starting from random initial conditions, manifestly time-asymmetric stripe-like patterns emerge. As we move forward in time, it appears that these stripes are born and merge, but do not die or split. We pose a precise conjecture to this effect, which requires a precise definition of 'stripes'.
description: 3 pages, 2 figures
Fano-Feshbach resonances in two-channel scattering around exceptional points
Creators: name: Heiss, W D
name: Wunner, G
Publisher: name: arXiv
Year: 2014
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: It is well known that in open quantum systems resonances can coalesce at an exceptional point, where both the energies {\em and} the wave functions coincide. In contrast to the usual behaviour of the scattering amplitude at one resonance, the coalescence of two resonances invokes a pole of second order in the Green's function, in addition to the usual first order pole. We show that the interference due to the two pole terms of different order gives rise to patterns in the scattering cross section which closely resemble Fano-Feshbach resonances. We demonstrate this by extending previous work on the analogy of Fano-Feshbach resonances to classical resonances in a system of two driven coupled damped harmonic oscillators.
description: 8 pages, 5 figures, submitted to J. Phys. A
Popularity Ratio Maximization: Surpassing Competitors through Influence Propagation
Creators: name: Liao, Hao
name: Bi, Sheng
name: Wu, Jiao
name: Zhang, Wei
name: Zhou, Mingyang
name: Mao, Rui
name: Chen, Wei
Publisher: name: arXiv
Year: 2023
Subjects: subject: Social and Information Networks (cs.SI)
subject: FOS: Computer and information sciences

description: In this paper, we present an algorithmic study on how to surpass competitors in popularity by strategic promotions in social networks. We first propose a novel model, in which we integrate the Preferential Attachment (PA) model for popularity growth with the Independent Cascade (IC) model for influence propagation in social networks called PA-IC model. In PA-IC, a popular item and a novice item grab shares of popularity from the natural popularity growth via the PA model, while the novice item tries to gain extra popularity via influence cascade in a social network. The popularity ratio is defined as the ratio of the popularity measure between the novice item and the popular item. We formulate Popularity Ratio Maximization (PRM) as the problem of selecting seeds in multiple rounds to maximize the popularity ratio in the end. We analyze the popularity ratio and show that it is monotone but not submodular. To provide an effective solution, we devise a surrogate objective function and show that empirically it is very close to the original objective function while theoretically, it is monotone and submodular. We design two efficient algorithms, one for the overlapping influence and non-overlapping seeds (across rounds) setting and the other for the non-overlapping influence and overlapping seed setting, and further discuss how to deal with other models and problem variants. Our empirical evaluation further demonstrates that the proposed PRM-IMM method consistently achieves the best popularity promotion compared to other methods. Our theoretical and empirical analyses shed light on the interplay between influence maximization and preferential attachment in social networks.
description: 22 pages, 8 figures, to be appear SIGMOD 2023
Dominguez Sanabria, Jesus, Maribel o la inquietud vocacional, 2.ª ed., col. ≪Palabra y Vida≫ 11, Editorial Revista Agustiniana, Madrid, 1996, 82 pp., 205x135, ISBN 84-86898-36-6.
Creators: name: Coutinho, Jorge
Publisher: name: Theologica
Year: 1998

description: Theologica, v. 33 n. 1 (1998): O Espírito, promessa do Pai (Lc 24,49) | Arte hoje na Igreja
Final state interaction phases using data from CP asymmetries
Creators: name: Kim, Jihn E.
name: Mo, Doh Young
name: Nam, Soonkeon
Publisher: name: arXiv
Year: 2014
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: Evidence of physics beyond the Standard Model (SM) of particle physics might be revealed through CP violation. Experimental results from BaBar, Belle, and most recently from LHCb are very interesting in this respect. It is important to calculate various CP violation parameters within the SM. In this Letter, the final state interaction (FSI) phases with the CKM matrix are calculated using the recent experimental results from LHCb on CP violation in B0 and Bs0 meson decays. To obtain the allowed regions of the FSI phases, a simplified form of the Jarlskog determinant of the CKM matrix is used and the CP phase delta close to the maximal value of pi/2 is found. Then, the asymmetry data on B0 and Bs0 from LHCb is used to explore graphically the allowed regions of the FSI phases.
description: 5 pages of LaTeX file with 3 figures
On flow disturbances caused by pressure taps in highly elastic flows around a microfluidic cylinder
Creators: name: Rodrigues, R.
name: Rodrigues, T.
name: Campo-Deaño, L.
Publisher: name: arXiv
Year: 2023
Subjects: subject: Fluid Dynamics (physics.flu-dyn)
subject: FOS: Physical sciences

description: The objective of this work is to characterise the onset of laterally asymmetric flow of viscoelastic solutions around a confined microfluidic cylinder, which was encountered in a recent study [Rodrigues et al., $\textit{J. Non-Newton. Fluid Mech.}$ $\textbf{289}$, 104406 (2020)]. To this end, two non-Newtonian fluids were employed in the same micro-geometry. Two microchannels were studied, both with a cylinder of diameter 75 $\mathrmμ$m, aspect ratio (channel height over width) of 0.37 and blockage ratio (cylinder diameter over channel width) of 0.28, differing only on the width of the pressure taps, located 500 $\mathrmμ$m up- and downstream from the respective cylinder face, on opposing walls. The working fluids consist of two poly(ethylene oxide) (PEO) solutions: a weakly shear-thinning elastic fluid and an elastic shear-thinning fluid. Micro-Particle Image Velocimetry ($\mathrmμ$PIV) and streak imaging techniques were used to evaluate the flow over a Weissenberg number range: $100\leq Wi\leq500$, while maintaining a low Reynolds number, $Re<1$. The elastic shear-thinning solution showed laterally asymmetric flow past the cylinder with both pressure tap designs, while with the weakly shear-thinning solution asymmetric flow was only observed with the wider pressure tap intake. In both cases, the fluids preferentially chose the cylinder/wall gap opposing the upstream pressure tap, which was found to influence the flow greatly, seemingly associated with time-dependent flow and possibly the lateral flow asymmetry itself. This work brings to light the necessary compromise between optimal pressure tap design for quality pressure measurements and minimal flow interference, due to the increased susceptibility of elastic microfluidic flows to flow perturbations.
High-field Studies on Layered Magnetic and Polar Dirac Metals
Creators: name: Sakai, Hideaki
Publisher: name: arXiv
Year: 2022
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Recently, the interplay between the Dirac/Weyl fermion and various bulk properties, such as magnetism, has attracted considerable attention, since unconventional transport and optical phenomena were discovered. However, the design principles for such materials have not been established well. Here, we propose that the layered material $A$Mn$X_2$ ($A$: alkaline and rare-earth ions, $X$: Sb, Bi) is a promising platform for systematically exploring strongly correlated Dirac metals, which consists of the alternative stack of the $X^-$ square net layer hosting a 2D Dirac fermion and the $A^{2+}$-Mn$^{2+}$-$X^{3-}$ magnetic block layer. In this article, we shall review recent high-field studies on this series of materials to demonstrate that various types of Dirac fermions are realized by designing the block layer. First, we give an overview of the Dirac fermion coupled with the magnetic order in EuMnBi$_2$ ($A$=Eu). This material exhibits large magnetoresistance by the field-induced change in the magnetic order of Eu layers, which is associated with the strong exchange interaction between the Dirac fermion and the local Eu moment. Second, we review the Dirac fermion coupled with the lattice polarization in BaMn$X_2$ ($A$=Ba). There, spin-valley coupling manifests itself owing to the Zeeman-type spin-orbit interaction, which is experimentally evidenced by the bulk quantum Hall effect observed at high fields.
description: 28 pages, 10 figures, published in JPSJ (Special Topics)
Lima, José da Silva (Coord.), Creio no Espírito Santo. Reflexões teológico-pastorais, Ed. da Escola Superior de Teologia e Ciências Humanas, Viana do Castelo, 1997, 112 pp., 205x140, ISBN 972-97139-2-8.
Creators: name: Arieiro, José
Publisher: name: Theologica
Year: 1998

description: Theologica, v. 33 n. 1 (1998): O Espírito, promessa do Pai (Lc 24,49) | Arte hoje na Igreja
Origin and Loss of nebula-captured hydrogen envelopes from "sub"- to "super-Earths" in the habitable zone of Sun-like stars
Creators: name: Lammer, H.
name: Stökl, A.
name: Erkaev, N. V.
name: Dorfi, E. A.
name: Odert, P.
name: Güdel, M.
name: Kulikov, Yu. N.
name: Kislyakova, K. G.
name: Leitzinger, M.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: FOS: Physical sciences

description: We investigate the origin and loss of captured hydrogen envelopes from protoplanets between `sub-Earth'-like bodies of 0.1$M_{\oplus}$ up to `super-Earths' with 5$M_{\oplus}$ in the HZ of a Sun like G star, assuming their rocky cores had formed before the nebula dissipated. We model the gravitational accumulation of nebula gas around a core as a function of protoplanetary luminosity during accretion and calculate the resulting surface temperature by solving the hydrostatic structure equations for the protoplanetary nebula. Depending on nebular properties and resulting luminosities, for planetary bodies of 0.1--1$M_{\oplus}$ we obtain hydrogen envelopes with masses between $\sim 2.5\times 10^{19}$--$1.5\times 10^{26}$ g. For `super-Earths' with masses between 2--5$M_{\oplus}$ hydrogen envelopes within the mass range of $\sim 7.5\times 10^{23}$--$1.5\times 10^{28}$ g can be captured. To study the escape of these hydrogen-dominated protoatmospheres, we apply a hydrodynamic upper atmosphere model and calculate the loss rates due to the heating by the high XUV flux of the young star. Our results indicate that under most nebula conditions `sub-Earth' and Earth-mass planets can lose their envelopes by thermal escape during the first $100$ Myr after the disk dissipated. However, if a nebula has a low dust depletion factor or low accretion rates resulting in low protoplanetary luminosities, it is possible that even protoplanets with Earth-mass cores may keep their hydrogen envelopes during their whole lifetime. In contrast to lower mass protoplanets, `super-Earths' accumulate a huge amount of nebula gas and lose only tiny fractions of their primordial envelopes. Our results agree with the fact that Venus, Earth, and Mars are not surrounded by dense hydrogen envelopes, as well as with the recent discoveries of low density `super-Earths' that most likely could not get rid of their protoatmospheres.
description: 17 pages, 5 figures, accepted to MNRAS
Zilles, Urbano, Os sacramentos da Igreja Católica, Col. «Teologia» 4, EDIPUCRS, Porto Alegre 1995, 312 pp., 210x150.
Creators: name: Neiva, A. Costa
Publisher: name: Theologica
Year: 1998

description: Theologica, v. 33 n. 1 (1998): O Espírito, promessa do Pai (Lc 24,49) | Arte hoje na Igreja
Robust Implicit Regularization via Weight Normalization
Creators: name: Chou, Hung-Hsu
name: Rauhut, Holger
name: Ward, Rachel
Publisher: name: arXiv
Year: 2023
Subjects: subject: Machine Learning (cs.LG)
subject: Optimization and Control (math.OC)
subject: FOS: Computer and information sciences
subject: FOS: Mathematics

description: Overparameterized models may have many interpolating solutions; implicit regularization refers to the hidden preference of a particular optimization method towards a certain interpolating solution among the many. A by now established line of work has shown that (stochastic) gradient descent tends to have an implicit bias towards low rank and/or sparse solutions when used to train deep linear networks, explaining to some extent why overparameterized neural network models trained by gradient descent tend to have good generalization performance in practice. However, existing theory for square-loss objectives often requires very small initialization of the trainable weights, which is at odds with the larger scale at which weights are initialized in practice for faster convergence and better generalization performance. In this paper, we aim to close this gap by incorporating and analyzing gradient flow (continuous-time version of gradient descent) with weight normalization, where the weight vector is reparameterized in terms of polar coordinates, and gradient flow is applied to the polar coordinates. By analyzing key invariants of the gradient flow and using Lojasiewicz Theorem, we show that weight normalization also has an implicit bias towards sparse solutions in the diagonal linear model, but that in contrast to plain gradient flow, weight normalization enables a robust bias that persists even if the weights are initialized at practically large scale. Experiments suggest that the gains in both convergence speed and robustness of the implicit bias are improved dramatically by using weight normalization in overparameterized diagonal linear network models.
Esquerda Bifet, Juan, Hemos visto su estrella. Teologia de la experiencia de Diós en las religiones, BAC, Madrid 1996, XXIV + 278 pp., 200x125, ISBN 84-7914-262-2.
Creators: name: Coutinho, Jorge
Publisher: name: Theologica
Year: 1998

description: Theologica, v. 33 n. 1 (1998): O Espírito, promessa do Pai (Lc 24,49) | Arte hoje na Igreja
Lavrador, João E. Pimentel, Pensamento Teológico de D. Miguel da Annunciação - Bispo de Coimbra (1741-1779) e Renovador da Diocese, Gráfica de Coimbra, Coimbra, 1995, 480 pp., 230x160, ISBN 972-603-093-5.
Creators: name: Coutinho, Jorge
Publisher: name: Theologica
Year: 1998

description: Theologica, v. 33 n. 1 (1998): O Espírito, promessa do Pai (Lc 24,49) | Arte hoje na Igreja
Sayes, José António, La gracia de Cristo, «Historia Salutis», BAC, Madrid, 1993, 504 pp., 200x130, ISBN 84-7914-101-8.
Creators: name: Lima, José Da Silva
Publisher: name: Theologica
Year: 1998

description: Theologica, v. 33 n. 1 (1998): O Espírito, promessa do Pai (Lc 24,49) | Arte hoje na Igreja
Revisionismos ou quebra de tabús? A propósito do documento Nós recordamos: uma reflexão sobre a Shoa
Creators: name: Esteves, António Luís
Publisher: name: Theologica
Year: 1998

description: Theologica, v. 33 n. 1 (1998): O Espírito, promessa do Pai (Lc 24,49) | Arte hoje na Igreja
Exact pre-transition effects in kinetically constrained circuits: dynamical fluctuations in the Floquet-East model
Creators: name: Klobas, Katja
name: De Fazio, Cecilia
name: Garrahan, Juan P.
Publisher: name: arXiv
Year: 2023
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Cellular Automata and Lattice Gases (nlin.CG)
subject: FOS: Physical sciences

description: We study the dynamics of a classical circuit corresponding to a discrete-time kinetically constrained East model. We show that this classical "Floquet-East" model displays pre-transition behaviour which is a dynamical equivalent of the hydrophobic effect in water. For the deterministic version of the model we prove exactly: (i) a change in scaling with size in the probability of inactive space-time regions (akin to the "energy-entropy" crossover of the solvation free energy in water), (ii) a first-order phase transition in the dynamical large deviations, (iii) the existence of the optimal geometry for local phase separation to accommodate space-time solutes, and (iv) a dynamical analog of "hydrophobic collapse".
description: 15 pages, 5 figures; v4 final version, as appears in Phys. Rev. E
Additional file 1 of Effectiveness and cost-effectiveness of an electronic mindfulness-based intervention (eMBI) on maternal mental health during pregnancy: the mindmom study protocol for a randomized controlled clinical trial
Creators: name: Mitho Müller
name: Matthies, Lina Maria
name: Goetz, Maren
name: Abele, Harald
name: Brucker, Sara Yvonne
name: Bauer, Armin
name: Graf, Johanna
name: Zipfel, Stephan
name: Hasemann, Lena
name: Wallwiener, Markus
name: Wallwiener, Stephanie
Publisher: name: figshare
Year: 2020
Subjects: subject: Medicine
subject: Cell Biology
subject: Biotechnology
subject: Sociology
subject: FOS: Sociology
subject: Science Policy
subject: 111714 Mental Health
subject: FOS: Health sciences

description: Additional file 1. SPIRIT 2013 Checklist: Recommended items to address in a clinical trial protocol and related documents
JKR solution for an anisotropic half space
Creators: name: Barber, J. R.
name: Ciavarella, M.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: In this paper, the classical JKR theory of the adhesive contact of isotropic elastic spheres is extended to consider the effect of anisotropic elasticity. The contact area will then generally be non-circular, but in many cases it can reasonably be approximated by an ellipse whose dimensions are determined by imposing the energy release rate criterion at the ends of the major and minor axes. Analytical expressions are obtained for the relations between the contact force, the normal displacement and the ellipse semi-axes. It is found that the eccentricity of the contact area decreases during tensile loading and for cases when the point load solution can be accurately described by only one Fourier term, it is almost circular at pull-off, permitting an exact closed form solution for this case. As in the isotropic JKR solution, the pull-off force is independent of the mean elastic modulus, but we find that anisotropy increases the pull-off force and this effect can be quite significant.
Artificial intelligence to advance Earth observation: : A review of models, recent trends, and pathways forward
Creators: name: Tuia, Devis
name: Schindler, Konrad
name: Demir, Begüm
name: Zhu, Xiao Xiang
name: Kochupillai, Mrinalini
name: Džeroski, Sašo
name: van Rijn, Jan N.
name: Hoos, Holger H.
name: Del Frate, Fabio
name: Datcu, Mihai
name: Markl, Volker
name: Saux, Bertrand Le
name: Schneider, Rochelle
name: Camps-Valls, Gustau
Publisher: name: arXiv
Year: 2023
Subjects: subject: Computer Vision and Pattern Recognition (cs.CV)
subject: Image and Video Processing (eess.IV)
subject: Applications (stat.AP)
subject: FOS: Computer and information sciences
subject: FOS: Electrical engineering, electronic engineering, information engineering

description: Earth observation (EO) is a prime instrument for monitoring land and ocean processes, studying the dynamics at work, and taking the pulse of our planet. This article gives a bird's eye view of the essential scientific tools and approaches informing and supporting the transition from raw EO data to usable EO-based information. The promises, as well as the current challenges of these developments, are highlighted under dedicated sections. Specifically, we cover the impact of (i) Computer vision; (ii) Machine learning; (iii) Advanced processing and computing; (iv) Knowledge-based AI; (v) Explainable AI and causal inference; (vi) Physics-aware models; (vii) User-centric approaches; and (viii) the much-needed discussion of ethical and societal issues related to the massive use of ML technologies in EO.
Vivência e redescoberta do Espírito na Igreja de Braga
Creators: name: Lima, José Da Silva
name: Vilar, José Correia
name: Couto, Elias
Publisher: name: Theologica
Year: 1998

description: Theologica, v. 33 n. 1 (1998): O Espírito, promessa do Pai (Lc 24,49) | Arte hoje na Igreja
Wigner function and the probability representation of quantum states
Creators: name: Man'ko, Margarita A.
name: Man'ko, Vladimir I.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: The relation of the Wigner function with the fair probability distribution called tomographic distribution or quantum tomogram associated with the quantum state is reviewed. The connection of the tomographic picture of quantum mechanics with the integral Radon transform of the Wigner quasidistribution is discussed. The Wigner--Moyal equation for the Wigner function is presented in the form of kinetic equation for the tomographic probability distribution both in quantum mechanics and in the classical limit of the Liouville equation. The calculation of moments of physical observables in terms of integrals with the state tomographic probability distributions is constructed having a standard form of averaging in the probability theory. New uncertainty relations for the position and momentum are written in terms of optical tomograms suitable for direct experimental check. Some recent experiments on checking the uncertainty relations including the entropic uncertainty relations are discussed.
description: 4 p, contribution to the Proceedings of the conference "Wigner 111 - Colourful and Deep (November 11-13 Budapest, Hungary)
El sindicalismo en la Universidad de Cartagena: 1969-1980
Creators: name: Gonima Pinto, Tomás Enrique
Publisher: name: Universidad de Cartagena
Year: 2022
Subjects: subject: Investigación cualitativa - Análisis de datos
subject: Universidad de Cartagena - Historia
subject: Sindicatos - Investigaciones

description: Este proyecto tiene como objeto analizar el papel de los sindicatos en la Universidad de Cartagena, teniendo en cuenta todo el contexto de la protesta social que se estaba evidenciando en ese entonces.Y en los objetivos específicos busco describir las luchas de estos sindicatos, comprender los logros que obtuvieron y hacer un panorama tanto nacional como internacional para tener más claro el enfoque de lo que se va a investigar.En esta investigación se conocerá una revisión a la historia de los sindicatos universitarios al interior de la Universidad de Cartagena, en el periodo comprendido de 1969 a 1980, teniendo en cuenta principalmente a los docentes y trabajadores oficiales del claustro. Toda esta investigación nace a partir de la escasa consulta y desarrollo que se les ha dado a estos sindicatos dentro de la historiografía nacional y regional, motivando así el interés por la escogencia de este tema. Es así como desarrollamos una idea central para la investigación, la cual consiste en analizar la organización de estos sindicatos en la Universidad de Cartagena y lo que esto conlleva (manifestaciones, huelgas, comunicados, entre otras formas de protesta).
Catálogo de licencias de construcción julio a septiembre 1967.
Creators: name: Briceño Bautista, Cristian David
Publisher: name: Universidad de Cartagena
Year: 2023
Subjects: subject: Investigación historica
subject: Construcción - Cartagena (Bolívar, Colombia), 1960
subject: Construcción - Licencias (Negocios) - Historia, 1960

description: Este proyecto tiene como objeto el presente catalogo del año 1967 de las licencias de construccion , que ha sido elaborado como requisito de grado para optar al título de historiador de la Universidad de Cartagena. Por lo que facilitara la búsqueda de información de documento de archivo en sus diferentes unidades de conservación. Los documentos catalogados son licencias de construcción del año 1967, expedida por las oficinas de obras.Las licencias son la autorización previa para desarrollar edificaciones, áreas de circulación y zonas comunales en uno o varios predios. En las licencias de construcción se concretarán de manera específica los usos, edificabilidad, volumetría, accesibilidad y demás aspectos técnicos aprobados para la respectiva edificación. En la recolección de estas licencias en el año de 1967, pude mirar un poco como era esa organización urbana de la ciudad de ese periodo.
Towards a Machine-Learned Poisson Solver for Low-Temperature Plasma Simulations in Complex Geometries
Creators: name: Siffa, Ihda Chaerony
name: Becker, Markus M.
name: Weltmann, Klaus-Dieter
name: Trieschmann, Jan
Publisher: name: arXiv
Year: 2023
Subjects: subject: Computational Physics (physics.comp-ph)
subject: Machine Learning (cs.LG)
subject: Numerical Analysis (math.NA)
subject: FOS: Physical sciences
subject: FOS: Computer and information sciences
subject: FOS: Mathematics

description: Poisson's equation plays an important role in modeling many physical systems. In electrostatic self-consistent low-temperature plasma (LTP) simulations, Poisson's equation is solved at each simulation time step, which can amount to a significant computational cost for the entire simulation. In this paper, we describe the development of a generic machine-learned Poisson solver specifically designed for the requirements of LTP simulations in complex 2D reactor geometries on structured Cartesian grids. Here, the reactor geometries can consist of inner electrodes and dielectric materials as often found in LTP simulations. The approach leverages a hybrid CNN-transformer network architecture in combination with a weighted multiterm loss function. We train the network using highly-randomized synthetic data to ensure the generalizability of the learned solver to unseen reactor geometries. The results demonstrate that the learned solver is able to produce quantitatively and qualitatively accurate solutions. Furthermore, it generalizes well on new reactor geometries such as reference geometries found in the literature. To increase the numerical accuracy of the solutions required in LTP simulations, we employ a conventional iterative solver to refine the raw predictions, especially to recover the high-frequency features not resolved by the initial prediction. With this, the proposed learned Poisson solver provides the required accuracy and is potentially faster than a pure GPU-based conventional iterative solver. This opens up new possibilities for developing a generic and high-performing learned Poisson solver for LTP systems in complex geometries.
$W$-triviality of low dimensional manifolds
Creators: name: Bhattacharya, Aritra C
name: Kundu, Bikramjit
name: Naolekar, Aniruddha C
Publisher: name: arXiv
Year: 2023
Subjects: subject: Algebraic Topology (math.AT)
subject: FOS: Mathematics
subject: 57R20

description: A space $X$ is $W$-trivial if for every real vector bundle $α$ over $X$ the total Stiefel-Whitney class $w(α)$ is 1. It follows from a result of Milnor that if $X$ is an orientable closed smooth manifold of dimension $1,2,4$ or $8$, then $X$ is not $W$-trivial. In this note we completely characterize $W$-trivial orientable connected closed smooth manifolds in dimensions $3,5$ and $6$. In dimension $7$, we describe necessary conditions for an orientable connected closed smooth $7$-manifold to be $W$-trivial.
description: 12 pages, Accepted in Manuscripta Mathematica
Radiation Magneto-hydrodynamic Simulations of the Formation of Hot Accretion Disk Coronae
Creators: name: Jiang, Yan-Fei
name: Stone, James M.
name: Davis, Shane W.
Publisher: name: arXiv
Year: 2014
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: A new mechanism to form a magnetic pressure supported, high temperature corona above the photosphere of an accretion disk is explored using three dimensional radiation magneto-hydrodynamic (MHD) simulations. The thermal properties of the disk are calculated self-consistently by balancing radiative cooling through the surfaces of the disk with heating due to dissipation of turbulence driven by magneto-rotational instability (MRI). As has been noted in previous work, we find the dissipation rate per unit mass increases dramatically with height above the mid-plane, in stark contrast to the alpha-disk model which assumes this quantity is a constant. Thus, we find that in simulations with a low surface density (and therefore a shallow photosphere), the fraction of energy dissipated above the photosphere is significant (about 3.4% in our lowest surface density model), and this fraction increases as surface density decreases. When a significant fraction of the accretion energy is dissipated in the optically thin photosphere, the gas temperature increases substantially and a high temperature, magnetic pressure supported corona is formed. The volume-averaged temperature in the disk corona is more than 10 times larger than at the disk mid-plane. Moreover, gas temperature in the corona is strongly anti-correlated with gas density, which implies the corona formed by MRI turbulence is patchy. This mechanism to form an accretion disk corona may help explain the observed relation between the spectral index and luminosity from AGNs, and the soft X-ray excess from some AGNs. It may also be relevant to spectral state changes in X-ray binaries.
description: 7 pages, 5 figures, accepted by ApJ
Accretion and Outflows in Cataclysmic Variables
Creators: name: Balman, Şölen
Publisher: name: Zenodo
Year: 2022
Subjects: Cataclysmic Variables, Accretion, Accretion Disks, X-rays, Binaries

description: Cataclysmic variables (CVS) are compact binary systems with white dwarves (WDs) as a primary. They constitute laboratories to study accretion flows, gas dynamics, outflows, transient outbursts, and explosive nuclear burning under different astrophysical plasma conditions in relation to other compact object binaries and active galactic nuclei. I will discuss spectral-timing analysis of these systems to study accretion physics in nonmagnetic CVs. CVs demonstrate band limited noise (BLN) in the UV, X-ray and optical, with detected frequency breaks (mainly dwarf novae) in the range (1-6) mHz in quiescence and indicate an optically thick disk truncation (transition) showing existence of advective hot flows (RIAF ADAF-like flows) in the inner regions (Balman & Revnivtsev 2012, Balman 2019, Balman 2020). High state CVs have accretion rates 10^−9 - few x10^−8 Msun/yr with wind outflows. I find similar broadband noise to DNe with BLN noise breaking in a range 2.5-10 mHz and prominent Lorentzian noise components dominating the BLN with occasional mHz QPOs as the accretion rate increases with spectral characteristics revealing nonequilibrium ionization plasma and ouflows detected in the X-rays (Balman et al. 2022). A power law component also exits that becomes more prominent with increasing accretion rate. I will discuss how spectral-timing studies can be probes to determine accretion history and state changes in WD binaries. I will elaborate with simulations how Athena can resolve some of the important complexities we are facing and improve our undertanding of advective hotflows in these systems.
Additional file 2 of Evaluating the next generation of RSV intervention strategies: a mathematical modelling study and cost-effectiveness analysis
Creators: name: Hodgson, David
name: Pebody, Richard
name: Panovska-Griffiths, Jasmina
name: Baguelin, Marc
name: Atkins, Katherine E.
Publisher: name: figshare
Year: 2020
Subjects: subject: Medicine
subject: Biotechnology
subject: Sociology
subject: FOS: Sociology
subject: Cancer
subject: Science Policy
subject: 110309 Infectious Diseases
subject: FOS: Health sciences
subject: 60506 Virology
subject: FOS: Biological sciences
subject: Computational Biology

description: Additional file 2: Figure S1. DIC for the ten model choices. Figure S2. Top. The proportion of infants born with protection over an epidemic season Figure S2. Bottom. A comparison of the posterior distributions for the detection model. Figure S3. A comparison between the model-predicted number of detected samples and the annual number of positive samples from RDMS. Figure S4. Top. The source of the infection for each demographic group in the analysis. Figure S4. Bottom. The magnitude of the force of infection relative to age group 1. Figure S5. Smooth histogram plots comparing the prior and posterior distributions. Figure S6. Estimated per-infection probability of GP consultations (top left), deaths (top right), hospital admission (bottom left) and number of bed days (bottom right). Figure S7. The total discount QALY loss over ten years. Figure S8. Impact of intervention programmes at preventing total proportion of RSV-related deaths.
Diversas concepciones sobre el Caribe Colombiano.
Creators: name: Ospina Herrera, Leonardo Jair
Publisher: name: Universidad de Cartagena
Year: 2023
Subjects: subject: Investigación cualitativa - Análisis de datos
subject: Caribe (Región, Colombia) - Vida social y costumbres
subject: Caribe - Historia

description: Este p´royecto tiene como objeto las representaciones y/o concepciones que se han presentado sobre el Caribe colombiano por parte de algunos académicos colombianos y extranjeros. El objetivo central del trabajo es, por tanto, identificar las distintas narraciones que se han tejido sobre la construcción del concepto. El trabajo consta de cuatro partes. El primero busca comprender el significado que se le ha dado al Caribe a lo largo del tiempo. El siguiente punto intenta evidenciar las apreciaciones de cómo algunos académicos han mostrado interpretaciones de la problemática con referente a lo Caribe. El tercer punto muestra la consolidación, renovación y fortalecimiento de los estudios en el Caribe colombiano y por último, el proceso de regionalización en el Caribe colombiano. Los cuatro acápites de este artículo, abordan las narraciones que del caribe se han realizado con el pasar del tiempo dentro del contexto regional que se ha tejido por diversos autores, conceptos cargados de posiciones políticas, de la historia como arma política, las cargas ideologías, los imaginarios, los discursos que se entretejieron para responder a ciertos intereses personales, académicos y políticos para dominar un espacio construido en el tiempo y que varía con el mismo.
Signatures of tunable Majorana-fermion edge states
Creators: name: Tiwari, Rakesh P.
name: Zülicke, U.
name: Bruder, C.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: Chiral Majorana-fermion modes are shown to emerge as edge excitations in a superconductor--topological-insulator hybrid structure that is subject to a magnetic field. The velocity of this mode is tunable by changing the magnetic-field magnitude and/or the superconductor's chemical potential. We discuss how quantum-transport measurements can yield experimental signatures of these modes. A normal lead coupled to the Majorana-fermion edge state through electron tunneling induces resonant Andreev reflections from the lead to the grounded superconductor, resulting in a distinctive pattern of differential-conductance peaks.
description: (13 pages, Accepted for publication in New Journal of Physics, an extension of and expansion on our previous work arXiv:1210.4057). arXiv admin note: text overlap with arXiv:1210.4057
A SAT Solver and Computer Algebra Attack on the Minimum Kochen-Specker Problem
Creators: name: Li, Zhengyu
name: Bright, Curtis
name: Ganesh, Vijay
Publisher: name: arXiv
Year: 2023
Subjects: subject: Quantum Physics (quant-ph)
subject: Computational Complexity (cs.CC)
subject: Combinatorics (math.CO)
subject: FOS: Physical sciences
subject: FOS: Computer and information sciences
subject: FOS: Mathematics

description: One of the fundamental results in quantum foundations is the Kochen-Specker (KS) theorem, which states that any theory whose predictions agree with quantum mechanics must be contextual, i.e., a quantum observation cannot be understood as revealing a pre-existing value. The theorem hinges on the existence of a mathematical object called a KS vector system. While many KS vector systems are known, the problem of finding the minimum KS vector system in three dimensions (3D) has remained stubbornly open for over 55 years.
 To address the minimum KS problem, we present a new verifiable proof-producing method based on a combination of a Boolean satisfiability (SAT) solver and a computer algebra system (CAS) that uses an isomorph-free orderly generation technique that is very effective in pruning away large parts of the search space. Our method shows that a KS system in 3D must contain at least 24 vectors. We show that our sequential and parallel Cube-and-Conquer (CnC) SAT+CAS methods are significantly faster than SAT-only, CAS-only, and a prior CAS-based method of Uijlen and Westerbaan. Further, while our parallel pipeline is somewhat slower than the parallel CnC version of the recently introduced Satisfiability Modulo Theories (SMS) method, this is in part due to the overhead of proof generation. Finally, we provide the first computer-verifiable proof certificate of a lower bound to the KS problem with a size of 40.3 TiB in order 23.
การพัฒนาสื่อมัลติมีเดียเพื่อการเรียนรู้ เรื่อง โปรแกรมค้นหา สำหรับนักเรียนระดับชั้นมัธยมศึกษาปีที่ 1 โรงเรียนวัดพระขาว (ประชานุเคราะห์) จังหวัดพระนครศรีอยุธยา
Creators: name: ศิริพล แสนบุญส่ง
name: นิป เอมรัฐ
name: ศักดา จันทราศรี
Publisher: name: Walailak University
Year: 2018
Subjects: สื่อมัลติมีเดียเพื่อการเรียนรู้
โปรแกรมการสืบค้น

description: Journal of Learning Innovayions Walailak University, 4, 2, 1-15
Additional file 1 of Evaluation of a multimedia youth anti-smoking and girls’ empowerment campaign: SKY Girls Ghana
Creators: name: Hutchinson, Paul
name: Leyton, Alejandra
name: Meekers, Dominique
name: Stoecker, Charles
name: Wood, Francine
name: Murray, Joanna
name: Naa Dodua Dodoo
name: Biney, Adriana
Publisher: name: figshare
Year: 2020
Subjects: subject: Medicine
subject: Biotechnology
subject: Sociology
subject: FOS: Sociology
subject: 69999 Biological Sciences not elsewhere classified
subject: FOS: Biological sciences
subject: Science Policy

description: Additional file 1. Endline Questionnaire SKY Girls.
Stochastic volatility models with possible extremal clustering
Creators: name: Mikosch, Thomas
name: Rezapour, Mohsen
Publisher: name: arXiv
Year: 2013
Subjects: subject: Statistics Theory (math.ST)
subject: FOS: Mathematics

description: In this paper we consider a heavy-tailed stochastic volatility model, $X_t=σ_tZ_t$, $t\in\mathbb{Z}$, where the volatility sequence $(σ_t)$ and the i.i.d. noise sequence $(Z_t)$ are assumed independent, $(σ_t)$ is regularly varying with index $α>0$, and the $Z_t$'s have moments of order larger than $α$. In the literature (see Ann. Appl. Probab. 8 (1998) 664-675, J. Appl. Probab. 38A (2001) 93-104, In Handbook of Financial Time Series (2009) 355-364 Springer), it is typically assumed that $(\logσ_t)$ is a Gaussian stationary sequence and the $Z_t$'s are regularly varying with some index $α$ (i.e., $(σ_t)$ has lighter tails than the $Z_t$'s), or that $(Z_t)$ is i.i.d. centered Gaussian. In these cases, we see that the sequence $(X_t)$ does not exhibit extremal clustering. In contrast to this situation, under the conditions of this paper, both situations are possible; $(X_t)$ may or may not have extremal clustering, depending on the clustering behavior of the $σ$-sequence.
description: Published in at http://dx.doi.org/10.3150/12-BEJ426 the Bernoulli (http://isi.cbs.nl/bernoulli/) by the International Statistical Institute/Bernoulli Society (http://isi.cbs.nl/BS/bshome.htm)