cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Additional file 3 of Characteristics associated with uncomplicated pregnancies in women with obesity: a population-based cohort study
Creators: name: Relph, Sophie
name: Yanfang Guo
name: Harvey, Alysha L. J.
name: Vieira, Matias C.
name: Corsi, Daniel J.
name: Gaudet, Laura M.
name: Dharmintra Pasupathy
Publisher: name: figshare
Year: 2021
Subjects: subject: Cell Biology
subject: Genetics
subject: FOS: Biological sciences
subject: Biotechnology
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: 19999 Mathematical Sciences not elsewhere classified
subject: FOS: Mathematics
subject: Cancer
subject: Science Policy
subject: 111714 Mental Health
subject: FOS: Health sciences

description: Additional file 3: Appendix Table 2. Characteristics associated with uncomplicated pregnancy in women of healthy weight (BMI 18.5–24.9 kg/m2) but no other early pregnancy complicating factors
Geo-neutrinos: a new probe of Earth's interior
Creators: name: Fiorentini, Gianni
name: Lissia, Marcello
name: Mantovani, Fabio
name: Vannucci, Riccardo
Publisher: name: arXiv
Year: 2005
Subjects: subject: Geophysics (physics.geo-ph)
subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: In preparation to the experimental results which will be available in the future, we study geo-neutrino production for different models of mantle convection and composition. By using global mass balance for the Bulk Silicate Earth, the predicted flux contribution from distant sources in the crust and in the mantle is fixed within a total uncertainty of +-15%. We also discuss regional effects, provided by subducting slabs or plumes near the detector. In four years a five-kton detector operating at a site relatively far from nuclear power plants can achieve measurements of the geo-neutrino signal accurate to within +-5%. It will provide a crucial test of the Bulk Silicate Earth and a direct estimate of the radiogenic contribution to terrestrial heat.
description: 19 pages, 6 tables, 7 figures; accepted for publication in Earth and Planetary Science Letters
Consistency of a kind of general noncanonical warm inflation
Creators: name: Zhang, Xiao-Min
name: Fu, Ang
name: Li, Kai
name: Li, Qian
name: Chu, Peng-Cheng
name: Ma, Hong-Yang
name: Zhu, Jian-Yang
Publisher: name: arXiv
Year: 2020
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: The framework of a kind of noncanonical warm inflation is introduced, and the dynamical equations of this scenario are presented. We propose the slow roll approximations and give some redefining slow roll parameters in this scenario which remain dimensionless. Performing systemic stability analysis, we calculate the slow roll conditions to guarantee that slow roll approximations hold. The slow roll conditions suggest slow roll inflation in general noncanonical warm inflationary scenario can still exist, and in addition, the slow roll approximations are more easily to be satisfied. Then, a concrete Dirac-Born-Infeld warm inflationary model is studied.
description: 6 pages, 0figures
Iterated Differential Forms I: Tensors
Creators: name: Vinogradov, A. M.
name: Vitagliano, L.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Differential Geometry (math.DG)
subject: Mathematical Physics (math-ph)
subject: Rings and Algebras (math.RA)
subject: FOS: Mathematics
subject: FOS: Physical sciences
subject: 53A55, 58A10, 58A50

description: We interpret tensors on a smooth manifold M as differential forms over a graded commutative algebra called the algebra of iterated differential forms over M. This allows us to put standard tensor calculus in a new differentially closed context and, in particular, enriches it with new natural operations. Applications will be considered in subsequent notes.
description: 9 pages, extended version of the published note Dokl. Math. 73, n. 2 (2006) 169
The Agnostic Structure of Data Science Methods
Creators: name: Napoletani, Domenico
name: Panza, Marco
name: Struppa, Daniele
Publisher: name: arXiv
Year: 2021
Subjects: subject: Other Statistics (stat.OT)
subject: FOS: Computer and information sciences
subject: 68T01

description: In this paper we argue that data science is a coherent and novel approach to empirical problems that, in its most general form, does not build understanding about phenomena. Within the new type of mathematization at work in data science, mathematical methods are not selected because of any relevance for a problem at hand; mathematical methods are applied to a specific problem only by 'forcing', i.e. on the basis of their ability to reorganize the data for further analysis and the intrinsic richness of their mathematical structure. In particular, we argue that deep learning neural networks are best understood within the context of forcing optimization methods. We finally explore the broader question of the appropriateness of data science methods in solving problems. We argue that this question should not be interpreted as a search for a correspondence between phenomena and specific solutions found by data science methods; rather, it is the internal structure of data science methods that is open to precise forms of understanding.
description: 24 pp., no figures, a new abstract and new key-words added
Lexical elicitation: Basic nouns and numerals 1-4
Creators: name: Sales, Henry
name: Garvin, Karee
name: Hermalin, Noah
name: Melguy, Yevgeniy
name: Michael, Lev
name: Scott, Tessa
name: Wilbanks, Eric
Publisher: name: California Language Archive, University of California, Berkeley
Year: 2021
Subjects: subject: mam

description: Lead elicitor and scribe: Lev Michael. Clean copy: Eric Wilbanks.
Additional file 4 of Characteristics associated with uncomplicated pregnancies in women with obesity: a population-based cohort study
Creators: name: Relph, Sophie
name: Yanfang Guo
name: Harvey, Alysha L. J.
name: Vieira, Matias C.
name: Corsi, Daniel J.
name: Gaudet, Laura M.
name: Dharmintra Pasupathy
Publisher: name: figshare
Year: 2021
Subjects: subject: Cell Biology
subject: Genetics
subject: FOS: Biological sciences
subject: Biotechnology
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: 19999 Mathematical Sciences not elsewhere classified
subject: FOS: Mathematics
subject: Cancer
subject: Science Policy
subject: 111714 Mental Health
subject: FOS: Health sciences

description: Additional file 4: Appendix Table 3. Characteristics associated with uncomplicated pregnancy in women who are overweight (BMI 25.0–29.9 kg/m) but no other early pregnancy complicating factors
Untersuchung von Sedimenten in ausgewählten Staustufen, Nebenflüssen und Seitenstrukturen im Unterlauf der Saale
Creators: name: Claus, Evelyn
Publisher: name: Bundesanstalt für Gewässerkunde, Koblenz
Year: 2015
Subjects: subject: Water resources research

description: Hydrologie und Wasserbewirtschaftung / BfG – Jahrgang: 59.2015,6 - ISSN 1439-1783
Canonical Representations of k-Safety Hyperproperties
Creators: name: Finkbeiner, Bernd
name: Haas, Lennart
name: Torfah, Hazem
Publisher: name: arXiv
Year: 2020
Subjects: subject: Formal Languages and Automata Theory (cs.FL)
subject: Logic in Computer Science (cs.LO)
subject: FOS: Computer and information sciences

description: Hyperproperties elevate the traditional view of trace properties form sets of traces to sets of sets of traces and provide a formalism for expressing information-flow policies. For trace properties, algorithms for verification, monitoring, and synthesis are typically based on a representation of the properties as omega-automata. For hyperproperties, a similar, canonical automata-theoretic representation is, so far, missing. This is a serious obstacle for the development of algorithms, because basic constructions, such as learning algorithms, cannot be applied. In this paper, we present a canonical representation for the widely used class of regular k-safety hyperproperties, which includes important polices such as noninterference. We show that a regular k-safety hyperproperty S can be represented by a finite automaton, where each word accepted by the automaton represents a violation of S. The representation provides an automata-theoretic approach to regular k-safety hyperproperties and allows us to compare regular k-safety hyperproperties, simplify them, and learn such hyperproperties. We investigate the problem of constructing automata for regular k-safety hyperproperties in general and from formulas in HyperLTL, and provide complexity bounds for the different translations. We also present a learning algorithm for regular k-safety hyperproperties based on the L* learning algorithm for deterministic finite automata.
description: Published in: 2019 IEEE 32nd Computer Security Foundations Symposium (CSF)
Computation of multiple eigenvalues and generalized eigenvectors for matrices dependent on parameters
Creators: name: Mailybaev, A. A.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences
subject: 15A21, 65F15

description: The paper develops Newton's method of finding multiple eigenvalues with one Jordan block and corresponding generalized eigenvectors for matrices dependent on parameters. It computes the nearest value of a parameter vector with a matrix having a multiple eigenvalue of given multiplicity. The method also works in the whole matrix space (in the absence of parameters). The approach is based on the versal deformation theory for matrices. Numerical examples are given. The implementation of the method in MATLAB code is available.
description: 19 pages, 3 figures
Das Einzugsgebiet der Mulde oberhalb des Muldestausees im Spiegel des erzgebirgischen Bergbaus
Creators: name: Annia Greif
Publisher: name: Bundesanstalt für Gewässerkunde, Koblenz
Year: 2015
Subjects: subject: Water resources research

description: Hydrologie und Wasserbewirtschaftung / BfG – Jahrgang: 59.2015,6 - ISSN 1439-1783
Calculated vibrational and electronic properties of various sodium thiogermanate glasses
Creators: name: Blaineau, Sébastien
name: Jund, Philippe
Publisher: name: arXiv
Year: 2005
Subjects: subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: FOS: Physical sciences

description: We study the vibrational and electronic properties of (x)Na$_2$S-(1-x)GeS$_2$ glasses through DFT-based molecular dynamics simulations, at different sodium concentrations ($0
description: 9 pages, 6 figures; to appear in Chemical Physics (typo. corrected)
Zur Belastung von Sedimenten mit Spurenmetallen und historischen organischen Schadstoffen in Altarmen der Elbe
Creators: name: Heise, Susanne
Publisher: name: Bundesanstalt für Gewässerkunde, Koblenz
Year: 2015
Subjects: subject: Water resources research

description: Hydrologie und Wasserbewirtschaftung / BfG – Jahrgang: 59.2015,6 - ISSN 1439-1783
Organische Schadstoffbelastungen in Schwebstoffen, Gewässersedimenten und Auen von Spittelwasser und Mulde und ihre Relevanz für das Flussgebiet Elbe
Creators: name: Jacobs, Patrick
Publisher: name: Bundesanstalt für Gewässerkunde, Koblenz
Year: 2015
Subjects: subject: Water resources research

description: Hydrologie und Wasserbewirtschaftung / BfG – Jahrgang: 59.2015,6 - ISSN 1439-1783
The Concept of Spin Ice Graphs and a Field Theory for their Topological Monopoles and Charges
Creators: name: Nisoli, Cristiano
Publisher: name: arXiv
Year: 2020
Subjects: subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: Spin ices can now be fabricated in a variety of geometries which control their collective behavior and exotic properties. Therefore, their proper framework is graph theory. We relate spin ice notions such as ice rule, ice manifold, Coulomb phases, charges and monopoles, to graph-theoretical notions, such as balance, in/out-degrees, and Eulerianicity. We then propose a field-theoretical treatment in which topological charges and monopoles are the degrees of freedom while the binary spins are subsumed into entropic interaction among charges. We show that for a spin ice on a graph in a Gaussian approximation, the kernel of the entropic interaction is the inverse of the graph Laplacian, and we compute screening functions from the graph spectra as Green operators for the screened Poisson problem on a graph. We then apply the treatment on star graphs, tournaments, cycles, and regular spin ice in different dimensions.
description: arXiv admin note: substantial text overlap with arXiv:2004.03735
Coherent spin mixing dynamics in a spin-1 atomic condensate
Creators: name: Zhang, Wenxian
name: Zhou, D. L.
name: Chang, M. -S.
name: Chapman, M. S.
name: You, L.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Other Condensed Matter (cond-mat.other)
subject: FOS: Physical sciences

description: We study the coherent off-equilibrium spin mixing inside an atomic condensate. Using mean field theory and adopting the single spatial mode approximation (SMA), the condensate spin dynamics is found to be well described by that of a nonrigid pendulum, and displays a variety of periodic oscillations in an external magnetic field. Our results illuminate several recent experimental observations and provide critical insights into the observation of coherent interaction-driven oscillations in a spin-1 condensate.
description: 6 pages, 5 eps figures, update the discussion of the experimental results
Variation of Magnetic Flux Ropes Through Major Solar Flares
Creators: name: Duan, Aiying
name: Jiang, Chaowei
name: Zhou, Zhenjun
name: Feng, Xueshang
name: Cui, Jun
Publisher: name: arXiv
Year: 2020
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: It remains unclear how solar flares are triggered and in what conditions they can be eruptive with coronal mass ejections. Magnetic flux ropes (MFRs) has been suggested as the central magnetic structure of solar eruptions, and their ideal instabilities including mainly the kink instability (KI) and torus instability (TI) provide important candidates for triggering mechanisms. Here using magnetic field extrapolations from observed photospheric magnetograms, we systematically studied the variation of coronal magnetic fields, focusing on MFRs, through major flares including 29 eruptive and 16 confined events. We found that nearly 90\% events possess MFR before flare and 70\% have MFR even after flare. We calculated the controlling parameters of KI and TI, including the MFR's maximum twist number and the decay index of its strapping field. Using the KI and TI thresholds empirically derived from solely the pre-flare MFRs, two distinct different regimes are shown in the variation of the MFR controlling parameters through flares. For the events with both parameters below their thresholds before flare, we found no systematic change of the parameters after the flares, in either the eruptive or confined events. In contrast, for the events with any of the two parameters exceeding their threshold before flare (most of them are eruptive), there is systematic decrease in the parameters to below their thresholds after flares. These results provide a strong constraint for the values of the instability thresholds and also stress the necessity of exploring other eruption mechanisms in addition to the ideal instabilities.
description: 8 pages, 4 figures, accepted by ApJL
A Conformally Flat Generalized Ricci Recurrent Spacetime in F(R)-Gravity
Creators: name: De, Avik
name: Loo, Tee-How
name: Solanki, Raja
name: Sahoo, P. K.
Publisher: name: arXiv
Year: 2021
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: In the present paper we study a conformally flat generalized Ricci recurrent perfect fluid spacetime with constant Ricci scalar as a solution of modified $F(R)$-gravity theory. We show that a Robertson-Walker spacetime is generalized Ricci Recurrent if and only if it is Ricci symmetric. The perfect fluid type matter is shown to have EoS $ω=-1$. Some energy conditions are analyzed with couple of popular toy models of $F(R)$-gravity, like $F(R)= R+αR^m $ where $α, m$ are constants and $ F(R)=R+βRlnR $ where $β$ is constant. In harmony with the recent observational studies of accelerated expansion of the universe, both cases exhibit that the null, weak, and dominant energy conditions fulfill their requirements whereas the strong energy condition is violated.
description: Revised version submitted to Physica Scripta
Compact Objects in Entangled Relativity
Creators: name: Arruga, Denis
name: Rousselle, Olivier
name: Minazzoli, Olivier
Publisher: name: arXiv
Year: 2020
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We describe the first numerical Tolman-Oppenheimer-Volkoff solutions of compact objects in entangled relativity, which is an alternative to the framework of general relativity that does not have any additional free parameter. Assuming a simple polytropic equation of state and the conservation of the rest-mass density, we notably show that, for any given density, compact objects are always heavier (up to $\sim 8\%$) in entangled relativity than in general relativity -- for any given central density within the usual range of neutron stars' central densities, or for a given radius of the resulting compact object.
description: 9 pages, 7 figures
Approximate Automata for Omega-Regular Languages
Creators: name: Dimitrova, Rayna
name: Finkbeiner, Bernd
name: Torfah, Hazem
Publisher: name: arXiv
Year: 2020
Subjects: subject: Formal Languages and Automata Theory (cs.FL)
subject: Logic in Computer Science (cs.LO)
subject: FOS: Computer and information sciences

description: Automata over infinite words, also known as omega-automata, play a key role in the verification and synthesis of reactive systems. The spectrum of omega-automata is defined by two characteristics: the acceptance condition (e.g. Büchi or parity) and the determinism (e.g., deterministic or nondeterministic) of an automaton. These characteristics play a crucial role in applications of automata theory. For example, certain acceptance conditions can be handled more efficiently than others by dedicated tools and algorithms. Furthermore, some applications, such as synthesis and probabilistic model checking, require that properties are represented as some type of deterministic omega-automata. However, properties cannot always be represented by automata with the desired acceptance condition and determinism. In this paper we study the problem of approximating linear-time properties by automata in a given class. Our approximation is based on preserving the language up to a user-defined precision given in terms of the size of the finite lasso representation of infinite executions that are preserved. We study the state complexity of different types of approximating automata, and provide constructions for the approximation within different automata classes, for example, for approximating a given automaton by one with a simpler acceptance condition.
description: Published at ATVA 2020
The effective potential of an $M$-matrix
Creators: name: Filoche, Marcel
name: Mayboroda, Svitlana
name: Tao, Terence
Publisher: name: arXiv
Year: 2021
Subjects: subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: In the presence of a confining potential $V$, the eigenfunctions of a continuous Schrödinger operator $-Δ+V$ decay exponentially with the rate governed by the part of $V$ which is above the corresponding eigenvalue; this can be quantified by a method of Agmon. Analogous localization properties can also be established for the eigenvectors of a discrete Schrödinger matrix. This note shows, perhaps surprisingly, that one can replace a discrete Schrödinger matrix by \emph{any} real symmetric $Z$-matrix and still obtain eigenvector localization estimates. In the case of a real symmetric non-singular $M$-matrix $A$ (which is a situation that arises in several contexts, including random matrix theory and statistical physics), the \emph{landscape function} $u = A^{-1} 1$ plays the role of an effective potential of localization. Starting from this potential, one can create an Agmon-type distance function governing the exponential decay of the eigenfunctions away from the "wells" of the potential, a typical eigenfunction being localized to a single such well.
Berkeley Field Methods: San Juan Atitán Mam
Creators: name: Sales, Henry
name: Bertet, Denis
name: Garvin, Karee
name: Hermalin, Noah
name: Melguy, Yevgeniy
name: Michael, Lev
name: Scott, Tessa
name: Wilbanks, Eric
Publisher: name: California Language Archive, University of California, Berkeley
Year: 2021

description: Sound recordings and notes from in-class and small-group elicitation sessions pertaining to lexicon, grammar, and phonetics, and of narrative texts.
Model independent analysis of a class of $\bar{B}_s^0 $ decay modes
Creators: name: Colangelo, P.
name: Ferrandes, R.
Publisher: name: arXiv
Year: 2005
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: The widths of a class of two-body $\bar{B}_s^0 $ decays induced by $b \to c \bar u d$ and $b \to c \bar u s$ transitions are determined in a model-independent way, using $SU(3)_F$ symmetry and existing information on $\bar B \to D_{(s)} P$ and $\bar B \to D_{(s)} V$ decays, with $P$ and $V$ a light pseudoscalar or vector meson. The results are relevant for the $B_s$ physics programmes at the hadron colliders and at the $e^+ e^-$ factories running at the peak of $Υ(5S)$.
description: LaTeX, 10 pages, 3 figures. Results for B_s \to D \eta(') in Table 1 corrected
Tailored subcycle nonlinearities of ultrastrong light-matter coupling
Creators: name: Mornhinweg, J.
name: Halbhuber, M.
name: Ciuti, C.
name: Bougeard, D.
name: Huber, R.
name: Lange, C.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Quantum Physics (quant-ph)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We explore the nonlinear response of tailor-cut light-matter hybrid states in a novel regime, where both the Rabi frequency induced by a coherent driving field and the vacuum Rabi frequency set by a cavity field are comparable to the carrier frequency of light. In this previously unexplored strong-field limit of ultrastrong coupling, subcycle pump-probe and multi-wave mixing nonlinearities between different polariton states violate the normal-mode approximation while ultrastrong coupling remains intact, as confirmed by our mean-field model. We expect such custom-cut nonlinearities of hybridized elementary excitations to facilitate non-classical light sources, quantum phase transitions, or cavity chemistry with virtual photons.
description: 10 pages, 4 figures, additional supplemental material
Synthesizing Approximate Implementations for Unrealizable Specifications
Creators: name: Dimitrova, Rayna
name: Finkbeiner, Bernd
name: Torfah, Hazem
Publisher: name: arXiv
Year: 2020
Subjects: subject: Logic in Computer Science (cs.LO)
subject: FOS: Computer and information sciences

description: The unrealizability of a specification is often due to the assumption that the behavior of the environment is unrestricted. In this paper, we present algorithms for synthesis in bounded environments, where the environment can only generate input sequences that are ultimately periodic words (lassos) with finite representations of bounded size. We provide automata-theoretic and symbolic approaches for solving this synthesis problem, and also study the synthesis of approximative implementations from unrealizable specifications. Such implementations may violate the specification in general, but are guaranteed to satisfy the specification on at least a specified portion of the bounded-size lassos. We evaluate the algorithms on different arbiter specifications.
description: Published at CAV 2019
A Sober Look at the Unsupervised Learning of Disentangled Representations and their Evaluation
Creators: name: Locatello, Francesco
name: Bauer, Stefan
name: Lucic, Mario
name: Rätsch, Gunnar
name: Gelly, Sylvain
name: Schölkopf, Bernhard
name: Bachem, Olivier
Publisher: name: arXiv
Year: 2020
Subjects: subject: Machine Learning (cs.LG)
subject: Machine Learning (stat.ML)
subject: FOS: Computer and information sciences

description: The idea behind the \emph{unsupervised} learning of \emph{disentangled} representations is that real-world data is generated by a few explanatory factors of variation which can be recovered by unsupervised learning algorithms. In this paper, we provide a sober look at recent progress in the field and challenge some common assumptions. We first theoretically show that the unsupervised learning of disentangled representations is fundamentally impossible without inductive biases on both the models and the data. Then, we train over $14000$ models covering most prominent methods and evaluation metrics in a reproducible large-scale experimental study on eight data sets. We observe that while the different methods successfully enforce properties "encouraged" by the corresponding losses, well-disentangled models seemingly cannot be identified without supervision. Furthermore, different evaluation metrics do not always agree on what should be considered "disentangled" and exhibit systematic differences in the estimation. Finally, increased disentanglement does not seem to necessarily lead to a decreased sample complexity of learning for downstream tasks. Our results suggest that future work on disentanglement learning should be explicit about the role of inductive biases and (implicit) supervision, investigate concrete benefits of enforcing disentanglement of the learned representations, and consider a reproducible experimental setup covering several data sets.
description: arXiv admin note: substantial text overlap with arXiv:1811.12359
A Kinetic Approach to Studying Low-Frequency Molecular Fluctuations in a One-Dimensional Shock
Creators: name: Sawant, Saurabh S.
name: Levin, Deborah A.
name: Theofilis, Vassilios
Publisher: name: arXiv
Year: 2020
Subjects: subject: Fluid Dynamics (physics.flu-dyn)
subject: FOS: Physical sciences

description: Low-frequency molecular fluctuations in the translational nonequilibrium zone of one-dimensional strong shock waves are characterised for the first time in a kinetic collisional framework in the Mach number range $2\le M\le 10$. Our analysis draws upon the well-known bimodal nature of the probability density function (PDF) of gas particles in the shock, as opposed to their Maxwellian distribution in the freestream, the latter exhibiting an order of magnitude higher dominant frequencies than the former. Inside the (finite-thickness) shock region, the strong correlation between perturbations in the bimodal PDF and fluctuations in the normal stress suggests introducing a novel two-bin model to describe the reduced-order dynamics of a large number of collision interactions of gas particles. Our model correctly predicts the order-of-magnitude difference in fluctuation frequencies in the shock versus those in the freestream and is consistent with the small-amplitude fluctuations obtained from the highly resolved Direct Simulation Monte Carlo (DSMC) computations of the same configuration. The variation of low-frequency fluctuations with changes in the conditions upstream of the shock revealed that these fluctuations can be described by a Strouhal number, based on the bulk velocity upstream of the shock and the shock-thickness based on the maximum density-gradient inside the shock, that remains practically independent of Mach number in the range examined. Our results are expected to have far-reaching implications for boundary conditions employed in the vicinity of shocks in the framework of flow instability and laminar-turbulent transition studies of flows containing both unsteady and nominally stationary shocks.
description: 31 pages, 14 figures, and 2 supplementary movies
Generalization of a theorem of Carathéodory
Creators: name: Ciccariello, Salvino
name: Cervellino, Antonio
Publisher: name: arXiv
Year: 2006
Subjects: subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences
subject: 11L03, 30C15, 15A23, 15A90, 42A63, 42A70, 42A82

description: Carathéodory showed that $n$ complex numbers $c_1,...,c_n$ can uniquely be written in the form $c_p=\sum_{j=1}^m ρ_j {ε_j}^p$ with $p=1,...,n$, where the $ε_j$s are different unimodular complex numbers, the $ρ_j$s are strictly positive numbers and integer $m$ never exceeds $n$. We give the conditions to be obeyed for the former property to hold true if the $ρ_j$s are simply required to be real and different from zero. It turns out that the number of the possible choices of the signs of the $ρ_j$s are {at most} equal to the number of the different eigenvalues of the Hermitian Toeplitz matrix whose $i,j$-th entry is $c_{j-i}$, where $c_{-p}$ is equal to the complex conjugate of $c_{p}$ and $c_{0}=0$. This generalization is relevant for neutron scattering. Its proof is made possible by a lemma - which is an interesting side result - that establishes a necessary and sufficient condition for the unimodularity of the roots of a polynomial based only on the polynomial coefficients. Keywords: Toeplitz matrix factorization, unimodular roots, neutron scattering, signal theory, inverse problems. PACS: 61.12.Bt, 02.30.Zz, 89.70.+c, 02.10.Yn, 02.50.Ga
description: 30 pages; submitted to J. Phys. A - Math. Gen
Structure of $n$-quasi left $m$-invertible and related classes of operators
Creators: name: Duggal, B. P.
name: Kim, I. H.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Functional Analysis (math.FA)
subject: FOS: Mathematics
subject: 47A05, 47A55, 47A80, 47A10

description: Given Hilbert space operators $T, S\in\B$, let $\triangle$ and $δ\in B(\B)$ denote the elementary operators $\triangle_{T,S}(X)=(L_TR_S-I)(X)=TXS-X$ and $δ_{T,S}(X)=(L_T-R_S)(X)=TX-XS$. Let $d=\triangle$ or $δ$. Assuming $T$ commutes with $S^*$, and choosing $X$ to be the positive operator $S^{*n}S^n$ for some positive integer $n$, this paper exploits properties of elementary operators to study the structure of $n$-quasi $[m,d]$-operators $d^m_{T,S}(X)=0$ to bring together, and improve upon, extant results for a number of classes of operators, amongst them $n$-quasi left $m$-invertible operators, $n$-quasi $m$-isometric operators, $n$-quasi $m$-selfadjoint operators and $n$-quasi $(m,C)$ symmetric operators (for some conjugation $C$ of $\H$). It is proved that $S^n$ is the perturbation by a nilpotent of the direct sum of an operator $S_1^n=(S|_{\overline{S^n(\H)}})^n$ satisfying $d^m_{T_1,S_1}(I_1)=0$, $T_1=T|_{\overline{S^n(\H)}}$, with the $0$ operator; if also $S$ is left invertible, then $S^n$ is similar to an operator $B$ such that $d^m_{B^*,B}(I)=0$. For power bounded $S$ and $T$ such that $ST^*-T^*S=0$ and $\triangle_{T,S}(S^{*n}S^n)=0$, $S$ is polaroid (i.e., isolated points of the spectrum are poles). The product property, and the perturbation by a commuting nilpotent property, of operators $T, S$ satisfying $d^m_{T,S}(I)=0$, given certain commutativity properties, transfers to operators satisfying $S^{*n}d^m_{T,S}(I)S^n=0$.
description: 25. arXiv admin note: substantial text overlap with arXiv:1812.00221
A simple method to determine charge-dependent curvature biases in track reconstruction in hadron collider experiments
Creators: name: Barter, William
name: Pili, Martina
name: Vesterinen, Mika
Publisher: name: arXiv
Year: 2021
Subjects: subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: A new data-driven method, using $Z \rightarrow μ^+ μ^-$ decays, is proposed to correct for charge-dependent curvature biases in spectrometer experiments at hadron colliders. The method is studied assuming a detector with a "forward-spectrometer" geometry similar to that of the LHCb experiment, and is shown to reliably control several simplified detector mis-alignment configurations. The applicability of the method for use in measurements of precision electroweak observables is evaluated.
description: 16 pages, 10 figures
Beyond Ballot Box: How Can We Save Nigeria?
Creators: name: Saidu Tunenso Umar
Publisher: name: Zenodo
Year: 2019

description: Ballot Box is a means to an end but not an end in itself. This is more so in the young democracies, especially in the developing world. Issues surrounding the formation, funding of political parties has been preoccupied with the microscopic-molecular process of human material. Like most countries in Africa particularly Nigeria, the corridor of power has been saturated by various autocratic leadership in spite of the unquantifiable quest for democracy and democratic processes. The most crucial and critical challenges
Generalized Signal Models and Direct FID-Based Dielectric Parameter Retrieval in MRI
Creators: name: Fuchs, Patrick
name: Remis, Rob
Publisher: name: arXiv
Year: 2020
Subjects: subject: Medical Physics (physics.med-ph)
subject: FOS: Physical sciences

description: In this paper we present full-wave signal models for magnetic and electric field measurements in magnetic resonance imaging (MRI). Our analysis is based on a scattering formalism in which the presence of an object or body is taken into account via an electric scattering source. We show that these signal models can be evaluated, provided the Green's tensors of the background field are known along with the dielectric parameters of the object and the magnetization within the excited part of the object. Furthermore, explicit signal expressions are derived in case of a small homogeneous ball that is embedded in free space and for which the quasi-static Born approximation can be applied. The conductivity and permittivity of the ball appear as explicit parameters in the resulting signal models and allow us to study the sensitivity of the measured signals with respect to these dielectric parameters. Moreover, for free induction decay signals we show that under certain conditions it is possible to retrieve the dielectric parameters of the ball from noise-contaminated induction decay signals that are based on electric or magnetic field measurements.
description: 12 pages, 6 figures
title: The Dynamics of Marriage and Divorce (LIEPP Working Paper, n°01)
Creators: name: Bruze, Gustaf
name: Svarer, Michael
name: Weiss, Yoram
Publisher: name: Sciences Po - LIEPP
Year: 2012
Subjects: subject: FOS: Social sciences
valueUri: http://www.oecd.org/science/inno/38235147.pdf

description: We formulate and estimate a dynamic model of marriage, divorce and remarriage using 27 years old panel data for the enrire Danish cohort born in 1960. The marital surplus is identified from the probability of divorce, and the surplus shares of husband and wives from their willingness to enter marriage. Eduaction and marraige order are complements in generating gains from marriage. Educated men and women receive a larger share of the marital gains but this effect is mitigated when their proportion rises. Education stabilizes marriage and second marriage are less stable. As the cohort ages, uneducated men are the most likely to be single.
Staircase Macdonald polynomials and the $q$-Discriminant
Creators: name: Boussicault, Adrien
name: Luque, Jean-Gabriel
Publisher: name: arXiv
Year: 2008
Subjects: subject: Combinatorics (math.CO)
subject: FOS: Mathematics
subject: ACM G.2.1

description: We prove that a $q$-deformation $\Disc k\X q$ of the powers of the discriminant is equal, up to a normalization, to a specialization of a Macdonald polynomial indexed by a staircase partition. We investigate the expansion of $\Disc k\X q$ on different basis of symmetric functions. In particular, we show that its expansion on the monomial basis can be explicitly described in terms of standard tableaux and we generalize a result of King-Toumazet-Wybourne about the expansion of the $q$-discriminant on the Schur basis.
description: 14 pp
Additional file 1 of Attitudes of East Tennessee residents towards general and pertussis vaccination: a qualitative study
Creators: name: Tandy, Corinne B.
name: Tree, Jennifer M. Jabson
Publisher: name: figshare
Year: 2021
Subjects: subject: Medicine
subject: Sociology
subject: FOS: Sociology
subject: Immunology
subject: FOS: Clinical medicine
subject: 69999 Biological Sciences not elsewhere classified
subject: FOS: Biological sciences
subject: Cancer
subject: Science Policy

description: Additional file 1. Demographic Questionnaire.pdf; Questionnaire; this questionnaire collected demographic data about each participant.
Nella mia ora di libertà
Creators: name: Bernardini, Stefania
Publisher: name: Medea
Year: 2021

description: Mediante un sentiero che attraversa due concept album di Fabrizio De André significativamente pubblicati uno dopo l’altro, Non al denaro non all’amore né al cielo e Storia di un impiegato, individueremo due diverse forme di prigionia che scaturiscono da una medesima fonte: il potere. Nei due album, De André propone due modi diversi di superamento di tali prigionie, i quali riflettono l’evoluzione del proprio pensiero anarchico.
description: Medea, Vol 7 No 1 (2021): IN/OUT. TRAJECTORIES OF CAPTIVITY AND FREEDOM
- XSummer - Transcendental Functions and Symbolic Summation in Form
Creators: name: Moch, S.
name: Uwer, P.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Mathematical Physics (math-ph)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: Harmonic sums and their generalizations are extremely useful in the evaluation of higher-order perturbative corrections in quantum field theory. Of particular interest have been the so-called nested sums,where the harmonic sums and their generalizations appear as building blocks, originating for example from the expansion of generalized hypergeometric functions around integer values of the parameters. In this Letter we discuss the implementation of several algorithms to solve these sums by algebraic means, using the computer algebra system Form.
description: 21 pages, 1 figure, Latex
Deterministic preparation of spin qubits in droplet etched GaAs quantum dots using quasi-resonant excitation
Creators: name: Hopfmann, Caspar
name: Sharma, Nand Lal
name: Nie, Weijie
name: Keil, Robert
name: Ding, Fei
name: Schmidt, Oliver G.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: We present a first comprehensive study on deterministic spin preparation employing excited state resonances of droplet etched GaAs quantum dots. This achievement facilitates future investigations of spin qubit based quantum memories using the GaAs quantum dot material platform. By observation of excitation spectra for a range of fundamental excitonic transitions the properties of different quantum dot energy levels, i.e. shells, are revealed. The innovative use of polarization resolved excitation and detection in quasi-resonant excitation spectroscopy facilitates determination of $85$ $\%$ maximum spin preparation fidelity - irrespective of the relative orientations of lab and quantum dot polarization eigenbases. Additionally, the characteristic non-radiative decay time is investigated as a function of ground state, excitation resonance and excitation power level, yielding decay times as low as $29$ ps for s-p-shell exited state transitions. Finally, by time resolved correlation spectroscopy it is demonstrated that the employed excitation scheme has a significant impact on the electronic environment of quantum dot transitions thereby influencing its charge and coherence.
description: 13 pages, 11 figures
Additional file 2 of Attitudes of East Tennessee residents towards general and pertussis vaccination: a qualitative study
Creators: name: Tandy, Corinne B.
name: Tree, Jennifer M. Jabson
Publisher: name: figshare
Year: 2021
Subjects: subject: Medicine
subject: Sociology
subject: FOS: Sociology
subject: Immunology
subject: FOS: Clinical medicine
subject: 69999 Biological Sciences not elsewhere classified
subject: FOS: Biological sciences
subject: Cancer
subject: Science Policy

description: Additional file 2:. Interview Guide for Article.docx, Interview guide, guide used for semi-structured interviews.
The Nature of the Peculiar Virgo Cluster Galaxies NGC 4064 and NGC 4424
Creators: name: Cortes, J. R.
name: Kenney, J. D. P.
name: Hardy, E.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We present a detailed study of the peculiar HI-deficient Virgo cluster spiral galaxies NGC 4064 and NGC 4424, using $^{12}$CO 1-0 interferometry, optical imaging and integral-field spectroscopic observations, in order to learn what type of environmental interactions have afected these galaxies. Optical imaging reveals that NGC 4424 has a strongly disturbed stellar disk, with banana-shaped isophotes and shells. NGC 4064, which lies in the cluster outskirts, possesses a relatively undisturbed outer stellar disk and a central bar. In both galaxies H-alpha emission is confined to the central kiloparsec. CO observations reveal bilobal molecular gas morphologies, with H-alpha emission peaking inside the CO lobes, implying a time sequence in the star formation process.Gas kinematics reveals strong bar-like non-circular motions in the molecular gas in both galaxies, suggesting that the material is radially infalling. In NGC 4064 the stellar kinematics reveal strong bar-like non-circular motions in the central 1 kpc. On the other hand, NGC 4424 has extremely modest stellar rotation velocities (Vmax ~ 30 km s-1), and stars are supported by random motions as far out as we can measure it. The observations suggest that the peculiarities of NGC 4424 are the result of an intermediate-mass merger plus ram pressure stripping. In the case of NGC 4064, the evidence suggests an already stripped "truncated/normal" galaxy that recently suffered a minor merger or tidal interaction with another galaxy. We propose that galaxies with "truncated/compact" H-alpha morphologies such as these are the result of the independent effects of ram pressure stripping, which removes gas from the outer disk, and gravitational interactions such as mergers, which heat stellar disks, drive gas to the central kpc and increase the central mass concentrations.
description: 42 pages, 21 figures
Ntel Jwak / Las Dos Mamás / The Two Mothers
Creators: name: Meza Calles, Yolanda
name: Fernández Guerrero, José Armando
Publisher: name: California Language Archive, University of California, Berkeley
Year: 2021
Subjects: subject: dih

description: En esta colección, la Srta. Yolanda Meza Calles platica de la forma en la que se hacía la narración de cuentos cuando ella era mas joven. El título alude a que en estas reuniones también asistía otra mujer (su tía abuela) que era como una madre adicional y quien también contaba cuentos.
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In this bundle, Ms. Yolanda Meza Calles talks about the way in which storytelling took place when she was younger. The title alludes to the fact that there was another woman (her great aunt) in these reunions who was like an additional mother and who would also tell stories.
Asymptotic statistical equivalence for ergodic diffusions: the multidimensional case
Creators: name: Dalalyan, Arnak
name: Reiss, Markus
Publisher: name: arXiv
Year: 2005
Subjects: subject: Statistics Theory (math.ST)
subject: Probability (math.PR)
subject: FOS: Mathematics

description: Asymptotic local equivalence in the sense of Le Cam is established for inference on the drift in multidimensional ergodic diffusions and an accompanying sequence of Gaussian shift experiments. The nonparametric local neighbourhoods can be attained for any dimension, provided the regularity of the drift is sufficiently large. In addition, a heteroskedastic Gaussian regression experiment is given, which is also locally asymptotically equivalent and which does not depend on the centre of localisation. For one direction of the equivalence an explicit Markov kernel is constructed.
description: 03 May 2005, 23 pages
Einigkeit in der Zertrennung
Creators: name: Mudʹjugin, Michail Nikolaevič
name: Friedrich, Hans P.
Publisher: name: Ökumenische Rundschau
Year: 2025

description: Ökumenische Rundschau, Bd. 42 Nr. 2 (1993): Ökumenische Rundschau, Band 42, Heft 2
Unexpected LIGO events and the Mirror World
Creators: name: Beradze, Revaz
name: Gogberashvili, Merab
Publisher: name: arXiv
Year: 2021
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: We consider the possibility that LIGO events GW190521, GW190425 and GW190814 may have emerged from the mirror world binaries. Theories of star evolution predict so called upper and lower mass gaps and masses of these merger components lie in that gaps. In order to explain these challenging events very specific assumptions are required and we argue that such scenarios are order of magnitude more probable in mirror world, where star formation begins earlier and matter density can exceed 5 times the ordinary matter density.
description: The version published by Monthly Notices of the Royal Astronomical Society
Quantification of the tissue changes in the human lung with chronic lung disease using a combination of computed tomography and stereology
Creators: name: Coxson, Harvey Owen
Publisher: name: University of British Columbia
Year: 2009

description: Idiopathic pulmonary fibrosis (IPF) and pulmonary emphysema are chronic lung diseases exhibiting progressive deterioration in pulmonary function as the lung architecture is remodeled. This thesis quantifies these tissue changes using a novel combination of computed tomography (CT) and quantitative histology. Pre-operative CT scans were obtained from patients with IPF, patients receiving lung volume reduction surgery for diffuse emphysema and from patients with minimal to mild emphysema undergoing lobectomy for a small peripheral tumour. Total lung volume was calculated using the pixel dimensions on the CT scan while airspace and tissue volume as well as the regional lung expansion were estimated using the attenuation values. Tissue samples were obtained at either open lung biopsy (IPF) or surgical resection (control and emphysema) and prepared for quantitative histology. A method for correcting the histology specimens to an in vivo level of inflation was developed so that tissue composition and surface area could be estimated using stereologic techniques. The data shows that there is a reorganization of lung parenchyma in IPF with a disproportionate of airspace and surface area without increasing the total amount of tissue. The patients with emphysema show evidence of a progressive proteolytic destruction of tissue volume and surface area. There is a negative correlation between regional lung expansion and surface area in emphysema and a positive correlation between surface area and the diffusing capacity of the lung in both diseases. This technique should prove useful in the longitudinal assessment of chronic lung diseases and the monitoring of response to treatment.
Additional file 1 of Identification and characterization of ugpE associated with the full virulence of Streptococcus suis
Creators: name: Yang, Qiulei
name: Li, Na
name: Zheng, Yu
name: Tian, Yanyan
name: Liang, Qiao
name: Zhao, Miaomiao
name: Chu, Hong
name: Gong, Yan
name: Wu, Tong
name: Wei, Shaopeng
name: Wang, He
name: Yan, Guangmou
name: Li, Fengyang
name: Lei, Liancheng
Publisher: name: figshare
Year: 2025
Subjects: subject: Microbiology
subject: FOS: Biological sciences

description: Additional file 1. Bacterial strains and plasmids used in this study. Detailed bacterial strains and plasmids information are provided.