cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Multiple Derived Lagrangian Intersections
Creators: name: Ben-Bassat, Oren
Publisher: name: arXiv
Year: 2013
Subjects: subject: Algebraic Geometry (math.AG)
subject: Algebraic Topology (math.AT)
subject: K-Theory and Homology (math.KT)
subject: FOS: Mathematics

description: We give a new way to produce examples of Lagrangians in shifted symplectic derived stacks, based on multiple intersections. Specifically, we show that an m-fold fiber product of Lagrangians in a shifted symplectic derived stack its itself Lagrangian in a certain cyclic product of pairwise homotopy fiber products of the Lagrangians.
Ensemble noise properties of the European Pulsar Timing Array
Creators: name: Goncharov, Boris
name: Sardana, Shubhit
Publisher: name: arXiv
Year: 2024
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: FOS: Physical sciences

description: The null hypothesis in Pulsar Timing Array (PTA) analyses includes assumptions about ensemble properties of pulsar time-correlated noise. These properties are encoded in prior probabilities for the amplitude and the spectral index of the power-law power spectral density of temporal correlations of the noise. Because multiple realizations of time-correlated noise processes are found in pulsars, these ensemble noise properties could and should be modelled in the full-PTA observations by parameterising the respective prior distributions using the so-called hyperparameters. This approach is known as the hierarchical Bayesian inference. In this work, we introduce a new procedure for numerical marginalisation over hyperparameters. The procedure may be used in searches for nanohertz gravitational waves and other PTA analyses to resolve prior misspecification at negligible computational cost. Furthermore, we infer the distribution of amplitudes and spectral indices of the power spectral density of spin noise and dispersion measure variation noise based on the observation of 25 millisecond pulsars by the European Pulsar Timing Array (EPTA). Our results may be used for the simulation of realistic noise in PTAs.
description: 11 pages, 6 figures, 3 tables
Project selection with partially verifiable information
Creators: name: Goel, Sumit
name: Hann-Caruthers, Wade
Publisher: name: arXiv
Year: 2020
Subjects: subject: Theoretical Economics (econ.TH)
subject: FOS: Economics and business

description: We consider a principal agent project selection problem with asymmetric information. There are $N$ projects and the principal must select exactly one of them. Each project provides some profit to the principal and some payoff to the agent and these profits and payoffs are the agent's private information. We consider the principal's problem of finding an optimal mechanism for two different objectives: maximizing expected profit and maximizing the probability of choosing the most profitable project. Importantly, we assume partial verifiability so that the agent cannot report a project to be more profitable to the principal than it actually is. Under this no-overselling constraint, we characterize the set of implementable mechanisms. Using this characterization, we find that in the case of two projects, the optimal mechanism under both objectives takes the form of a simple cutoff mechanism. The simple structure of the optimal mechanism also allows us to find evidence in support of the well-known ally-principle which says that principal delegates more authority to an agent who shares their preferences.
description: 20 pages, 2 figures
A 'Darboux Theorem' for shifted symplectic structures on derived Artin stacks, with applications
Creators: name: Ben-Bassat, Oren
name: Brav, Christopher
name: Bussi, Vittoria
name: Joyce, Dominic
Publisher: name: arXiv
Year: 2013
Subjects: subject: Algebraic Geometry (math.AG)
subject: FOS: Mathematics

description: This is the fifth in a series arXiv:1304.4508, arXiv:1305,6302, arXiv:1211.3259, arXiv:1305.6428 on the '$k$-shifted symplectic derived algebraic geometry' of Pantev, Toen, Vaquie and Vezzosi, arXiv:1111.3209. This paper extends the previous three from (derived) schemes to (derived) Artin stacks. We prove four main results: (a) If $(X,ω)$ is a $k$-shifted symplectic derived Artin stack for $k<0$ in the sense of arXiv:1111.3209, then near each $x\in X$ we can find a 'minimal' smooth atlas $φ:U\to X$ with $U$ an affine derived scheme, such that $(U,φ^*(ω))$ may be written explicitly in coordinates in a standard 'Darboux form'. (b) If $(X,ω)$ is a $-1$-shifted symplectic derived Artin stack and $X'$ the underlying classical Artin stack, then $X'$ extends naturally to a 'd-critical stack' $(X',s)$ in the sense of arXiv:1304.4508. (c) If $(X,s)$ is an oriented d-critical stack, we can define a natural perverse sheaf $P^\bullet_{X,s}$ on $X$, such that whenever $T$ is a scheme and $t:T\to X$ is smooth of relative dimension $n$, then $T$ is locally modelled on a critical locus Crit$(f:U\to{\mathbb A}^1)$ for $U$ smooth, and $t^*(P^\bullet_{X,s})[n]$ is locally modelled on the perverse sheaf of vanishing cycles $PV_{U,f}^\bullet$ of $f$. (d) If $(X,s)$ is a finite type oriented d-critical stack, we can define a natural motive $MF_{X,s}$ in a ring of motives $\bar{\mathcal M}^{st,\hatμ}_X$ on $X$, such that whenever $T$ is a finite type scheme and $t:T\to X$ is smooth of dimension $n$, then $T$ is locally modelled on a critical locus Crit$(f:U\to{\mathbb A}^1)$ for $U$ smooth, and ${\mathbb L}^{-n/2}\odot t^*(MF_{X,s})$ is locally modelled on the motivic vanishing cycle $MF^{mot,ϕ}_{U,f}$ of $f$ in $\bar{\mathcal M}^{st,\hatμ}_T$. Our results have applications to categorified and motivic extensions of Donaldson-Thomas theory of Calabi-Yau 3-folds
description: (v2) 61 pages. Minor corrections, foundational material on perverse sheaves shortened
title: Evaluating the Effects of Alum with Polyelectrolyte Coagulant Aids in Treatment of Low Turbidity Waters
Creators: name: Stockwell, Kenneth John
Publisher: name: Old Dominion University Libraries
Year: 1983

description: Potable water sources usually require treatment for removal of suspended organic and inorganic particles. Conventional treatment processes incorporate chemical coagulants for removal of these suspended particles. Alum is a widely used coagulant that can provide adequate removals of turbidity. However, high alum dosages are required for treatment of low turbidity waters producing a voluminous sludge that is difficult to dewater.

Recent Federal regulations have limited disposal options for chemical sludges. This has prompted a reevaluation of coagulants and their dosages with the goal of reducing the amount of sludge produced and improving the sludge handling characteristics necessary for ultimate disposal.

This study was conducted with surface water samples from the Lee Hall reservoir in Newport News, Virginia. Laboratory jar test procedures, which simulated flow conditions at the Lee Hall Water Treatment Facility, were carried out using alum as a primary coagulant, and a variety of polyelectrolytes as coagulant aids.
Sums of units in function fields II - The extension problem
Creators: name: Frei, Christopher
Publisher: name: arXiv
Year: 2013
Subjects: subject: Number Theory (math.NT)
subject: FOS: Mathematics
subject: Primary 11R58, Secondary 11R27

description: In 2007, Jarden and Narkiewicz raised the following question: Is it true that each algebraic number field has a finite extension L such that the ring of integers of L is generated by its units (as a ring)? In this article, we answer the analogous question in the function field case. More precisely, it is shown that for every finite non-empty set S of places of an algebraic function field F | K over a perfect field K, there exists a finite extension F' | F, such that the integral closure of the ring of S-integers of F in F' is generated by its units (as a ring).
description: 12 pages
Flore d'Afrique centrale - Spermatophyta - Ceratophyllaceae
Creators: name: Hauman, L.
Publisher: name: Zenodo
Year: 1951
Subjects: Flora
Plants
Identification
Botany
Systematics
Taxonomy
Central Africa
Democratic Republic of the Congo
Rwanda
Burundi

description: PDF version of treatment of Ceratophyllaceae in Flore d'Afrique centrale series
Dark matter vs. Pulsars: Catching the impostor
Creators: name: Mirabal, N.
Publisher: name: arXiv
Year: 2013
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: Evidence of excess GeV emission nearly coinciding with the Galactic Centre has been interpreted as a possible signature of annihilating dark matter. In this paper, we argue that it seems too early to discard pulsars as a viable explanation for the observed excess. On the heels of the recently released Second Fermi LAT Pulsar Catalogue (2FPC), it is still possible that a population of hard (Gamma < 1) millisecond pulsars (MSPs) either endemic to the innermost region or part of a larger nascent collection of hard MSPs that appears to be emerging in the 2FPC could explain the GeV excess near the Galactic Centre.
description: 5 pages, 2 figures, MNRAS accepted
Topological Structures of Large Scale Interacting Systems via Uniform Functions and Forms
Creators: name: Bannai, Kenichi
name: Kametani, Yukio
name: Sasada, Makiko
Publisher: name: arXiv
Year: 2020
Subjects: subject: Probability (math.PR)
subject: Algebraic Geometry (math.AG)
subject: Algebraic Topology (math.AT)
subject: Combinatorics (math.CO)
subject: FOS: Mathematics
subject: 82C22, 05C63, 55N91, 60J60, 70G40

description: In this article, we investigate the topological structure of large scale interacting systems on infinite graphs, by constructing a suitable cohomology which we call the uniform cohomology. The central idea for the construction is the introduction of a class of functions called uniform functions. Uniform cohomology provides a new perspective for the identification of macroscopic observables from the microscopic system. As a straightforward application of our theory when the underlying graph has a free action of a group, we prove a certain decomposition theorem for shift-invariant closed uniform forms. This result is a uniform version in a very general setting of the decomposition result for shift-invariant closed $L^2$-forms originally proposed by Varadhan, which has repeatedly played a key role in the proof of the hydrodynamic limits of nongradient large scale interacting systems. In a subsequent article, we use this result as a key to prove Varadhan's decomposition theorem for a general class of large scale interacting systems.
description: 65 pages, 7 figures. Added Appendix A to review the general theory of homology and cohomology of graphs. Final version, to appear in Forum of Mathematics, Sigma
Dagger Geometry As Banach Algebraic Geometry
Creators: name: Bambozzi, Federico
name: Ben-Bassat, Oren
Publisher: name: arXiv
Year: 2015
Subjects: subject: Algebraic Geometry (math.AG)
subject: Functional Analysis (math.FA)
subject: Number Theory (math.NT)
subject: FOS: Mathematics
subject: 14A20, 13J07, 14G22, 14E25, 46M99, 18D10, 19D23, 14F20

description: In this article, we apply the approach of relative algebraic geometry towards analytic geometry to the category of bornological and Ind-Banach spaces (non-Archimedean or not). We are able to recast the theory of Grosse-Klönne dagger affinoid domains with their weak G-topology in this new language. We prove an abstract recognition principle for the generators of their standard topology (the morphisms appearing in the covers). We end with a sketch of an emerging theory of dagger affinoid spaces over the integers, or any Banach ring, where we can see the Archimedean and non-Archimedean worlds coming together.
03 Controle em Foco A DELEGACAO NORMATIVA E AS CAUSAS DE SUSPENSAO DO PRAZO DE PRESCRICAO.
Creators: name: Ministério Publico de Contas do Estado de Minas Gerais
Publisher: name: Zenodo
Year: 2021

description: O objetivo desse texto é verificar a conformidade com a Constituição de 1988 do art. 110-D, da Lei Complementar estadual nº 102/2008, de Minas Gerais, que delegou ao Tribunal de Contas o poder normativo para dispor sobre as causas suspensivas da prescrição de sua pretensão punitiva no exercício do controle externo.
title: Thrombozytopathie bei Patienten unter venovenöser und venoarterieller ECMO-Therapie
Creators: name: Hidiatov, Oleg
Publisher: name: Universität Tübingen
Year: 2025
Subjects: subject: Thrombozyt , Extrakorporale Membranoxygenation , Sekretion , Aktivierung
subject: 610
subject: ECMO
subject: α-Granula
subject: δ-Granula
subject: Scherstress
subject: shear
subject: Storage-pool-disease
subject: exhausted platelets
subject: ADP
subject: TRAP-6
subject: ECMO

description: Die extrakorporale Zirkulation wird häufig bei Intensivpatienten mit eingeschränkter Lungen- oder Herzfunktion eingesetzt. Obwohl ECC eine lebensrettende Therapieoption ist, ist dieses mit einem erhöhten Risiko für Blutungen und Thrombosen verbunden. Die Behandlung von Blutungen und thromboembolischen Ereignissen bei ECC-Patienten stellt immer noch eine Herausforderung dar, was teilweise auf den Mangel an Informationen über die pathophysiologischen Veränderungen der Hämostase und der Thrombozytenfunktion während des Eingriffs zurückzuführen ist. Mithilfe einer Kombination aus einem Ex-vivo-Modell für Scherspannung und einer empfindlichen und benutzerfreundlichen Labormethode ließ sich die Funktionsfähigkeit der Blutplättchen während der ECC analysieren. Nach der Scherspannungssimulation in einem Ex-vivo-ECC-Modell mit geschlossenem Regelkreis konnte eine signifikant verringerte Reaktion von α-Granula nach Aktivierung mit ADP und TRAP-6 sowie eine deutlich verringerte CD63-Expression nach Aktivierung mit TRAP-6 nachgewiesen werden. Zudem war die Aufnahme von Mepacrin im Ex-vivo-Scherspannungsmodell ebenfalls deutlich reduziert. Bei Patienten unter venovenöser und venoarterieller ECMO zeigte sich nach Stimulation mit ADP und TRAP-6 am Tag 1, 6 und 10 auch eine beeinträchtigte CD62P-Degranulation im Vergleich zu den gesunden Spenderproben. Es wurde jedoch kein signifikanter Zusammenhang zwischen der Degranulation der Blutplättchen und dem Auftreten von Blutungen oder thromboembolischen Ereignissen beobachtet. Der in der Arbeit verwendete Vollblut-Durchflusszytometrieassay mit sofortiger Fixierung sowie anschließender Lagerung bis zu 72 Stunden stellt eine sensitive und einfach anwendbare Methode zur Bestimmung des Thrombozytenaktivierungsstatus dar und die Daten bestätigen, dass erhöhte Scherstressbedingungen unter ECC zu einer deutlich beeinträchtigten Degranulation der Thrombozyten führen können.
Searching for Millisecond Pulsars: Surveys, Techniques and Prospects
Creators: name: Stovall, K.
name: Lorimer, D. R.
name: Lynch, R. S
Publisher: name: arXiv
Year: 2013
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: FOS: Physical sciences

description: Searches for millisecond pulsars (which we here loosely define as those with periods $
description: 16 pages, 3 figures, accepted for publication in Classical and Quantum gravity
On polynomial submersions of degree $4$ and the real Jacobian conjecture in $\R^2$
Creators: name: Braun, F.
name: Oréfice-Okamoto, B.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Dynamical Systems (math.DS)
subject: FOS: Mathematics
subject: Primary: 14R15, Secondary: 26C10, 53C12

description: The main result of this paper is the following version of the real Jacobian conjecture: "Let $F=(p,q):\R^2\to\R^2$ be a polynomial map with nowhere zero Jacobian determinant. If the degree of $p$ is less than or equal to $4$, then $F$ is injective". Assume that two polynomial maps from $\R^2$ to $\R$ are equivalent when they are the same up to affine changes of coordinates in the source and in the target. We completely classify the polynomial submersions of degree $4$ with at least one disconnected level set up to this equivalence, obtaining four classes. Then, analyzing the half-Reeb components of the foliation induced by a representative $p$ of each of these classes, we prove there is not a polynomial $q$ such that the Jacobian determinant of the map $(p,q)$ is nowhere zero. Recalling that the real Jacobian conjecture is true for maps $F=(p,q)$ when all the level sets of $p$ are connected, we conclude the proof of the main result.
Flore d'Afrique centrale - Spermatophyta - Menispermaceae
Creators: name: Troupin, G.
Publisher: name: Zenodo
Year: 1951
Subjects: Flora
Plants
Identification
Botany
Systematics
Taxonomy
Central Africa
Democratic Republic of the Congo
Rwanda
Burundi

description: PDF version of treatment of Menispermaceae in Flore d'Afrique centrale series
Halo model and halo properties in Galileon gravity cosmologies
Creators: name: Barreira, Alexandre
name: Li, Baojiu
name: Hellwing, Wojciech A.
name: Lombriser, Lucas
name: Baugh, Carlton M.
name: Pascoli, Silvia
Publisher: name: arXiv
Year: 2014
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: We investigate the performance of semi-analytical modelling of large-scale structure in Galileon gravity cosmologies using results from N-body simulations. We focus on the Cubic and Quartic Galileon models that provide a reasonable fit to CMB, SNIa and BAO data. We demonstrate that the Sheth-Tormen mass function and linear halo bias can be calibrated to provide a very good fit to our simulation results. We also find that the halo concentration-mass relation is well fitted by a power law. The nonlinear matter power spectrum computed in the halo model approach is found to be inaccurate in the mildly nonlinear regime, but captures reasonably well the effects of the Vainshtein screening mechanism on small scales. In the Cubic model, the screening mechanism hides essentially all of the effects of the fifth force inside haloes. In the case of the Quartic model, the screening mechanism leaves behind residual modifications to gravity, which make the effective gravitational strength time-varying and smaller than the standard value. Compared to normal gravity, this causes a deficiency of massive haloes and leads to a weaker matter clustering on small scales. For both models, we show that there are realistic halo occupation distributions of Luminous Red Galaxies that can match both the observed large-scale clustering amplitude and the number density of these galaxies.
description: 17 pages, 7 figures and 5 tables; v2 contains a HOD analysis of LRGs (Fig.5)
Radiative Origin of Fermion Mass Hierarchy in Left-Right Symmetric Theory
Creators: name: Jana, Sudip
name: Klett, Sophie
name: Lindner, Manfred
name: Mohapatra, Rabindra N.
Publisher: name: arXiv
Year: 2024
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: Despite the remarkable success of the Standard Model, the hierarchy and patterns of fermion masses and mixings remain a profound mystery. To address this, we propose a model employing the rank mechanism, where the originally massless quarks and leptons sequentially get masses. The third-generation masses originate from the seesaw mechanism at the tree level, while those of the second and first generations emerge from one-loop and two-loop radiative corrections, respectively, with a progressive increase in the rank of the mass matrix. This approach does not require new discrete or global symmetries. Unlike other theories of this type that require the introduction of additional scalars, we employ the double seesaw mechanism within a left-right symmetric framework, which allows us to realize this scenario solely through gauge interactions.
description: 33 pages + references, 6 figures
Flore d'Afrique centrale - Spermatophyta - Ranunculaceae
Creators: name: Staner, P.
name: Léonard, J.
Publisher: name: Zenodo
Year: 1951
Subjects: Flora
Plants
Identification
Botany
Systematics
Taxonomy
Central Africa
Democratic Republic of the Congo
Rwanda
Burundi

description: PDF version of treatment of Ranunculaceae in Flore d'Afrique centrale series
Sleep as a mediator of the relationship between social class and health in higher education students
Creators: name: McGuffog, Romany
name: Rubin, Mark
name: Boyes, Mark
name: L. Caltabiano, Marie
name: Collison, James
name: Lovell, Geoff P.
name: MULDOON, ORLA
name: Paolini, Stefania
Publisher: name: University of Limerick
Year: 2023
Subjects: classificationCode: 52
subject: Psychology
subject: FOS: Psychology

description: A substantial body of research indicates that higher education students from lower social class backgrounds tend to have poorer health than those from higher social class backgrounds. To investigate sleep as a potential mediator of this relationship, online survey responses of students from five large Australian universities, one Irish university and one large Australian technical college were analysed in three studies (Study 1 N = 628; Study 2 N = 376; Study 3 N = 446). The results revealed that sleep quality, sleep duration, sleep disturbances, pre-sleep worries and sleep schedule variability mediated the relationship between social class and physical and mental health. Sleep remained a significant mediator when controlling for related variables and other mediators. Thus, the findings suggest that sleep partly explains social class differences in health. We discuss the importance of addressing sleep issues among students from lower social class backgrounds.
Michael Zeuske, Handbuch Geschichte der Sklaverei. Eine Globalgeschichte von den Anfängen bis zur Gegenwart. 2 Teilbde. 2., überarb. u. erweiterte Aufl. (De Gruyter Reference.) Berlin/Boston, De Gruyter 2019
Creators: name: Mann, Michael
Publisher: name: Humboldt-Universität zu Berlin
Year: 2019
Subjects: subject: 900 Geschichte, Geografie und Hilfswissenschaften
subject: 909 Weltgeschichte

description: Dieser Beitrag ist mit Zustimmung des Rechteinhabers aufgrund einer (DFG-geförderten) Allianz- bzw. Nationallizenz frei zugänglich.
Blind deconvolution of density-matrix renormalization-group spectra
Creators: name: Paech, Martin
name: Jeckelmann, Eric
Publisher: name: arXiv
Year: 2014
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: We present a numerical method for calculating piecewise smooth spectral functions of correlated quantum systems in the thermodynamic limit from the spectra of finite systems computed using the dynamical or correction-vector density-matrix renormalization group method. The key idea is to consider this problem as a blind deconvolution with an unknown kernel which causes both a broadening and finite-size corrections of the spectrum. In practice, the method reduces to a least-square optimization under non-linear constraints which enforce the positivity and piecewise smoothness of spectral functions. The method is demonstrated on the single-particle density of states of one-dimensional paramagnetic Mott insulators represented by the half-filled Hubbard model on an open chain. Our results confirm that the density of states has a step-like shape but no square-root singularity at the spectrum onset.
description: published version
Coding is hard
Creators: name: Sanders, Sam
Publisher: name: arXiv
Year: 2024
Subjects: subject: Logic (math.LO)
subject: FOS: Mathematics
subject: 03B30, 03F35

description: A central topic in mathematical logic is the classification of theorems from mathematics in hierarchies according to their logical strength. Ideally, the place of a theorem in a hierarchy does not depend on the representation (aka coding) used. In this paper, we show that the standard representation of compact metric spaces in second-order arithmetic has a profound effect. To this end, we study basic theorems for such spaces like a continuous function has a supremum and a countable set has measure zero. We show that these and similar third-order statements imply at least Feferman's highly non-constructive projection principle, and even full second-order arithmetic or countable choice in some cases. When formulated with representations (aka codes), the associated second-order theorems are provable in rather weak fragments of second-order arithmetic. Thus, we arrive at the slogan that coding compact metric spaces in the language of second-order arithmetic can be as hard as second-order arithmetic or countable choice. We believe every mathematician should be aware of this slogan, as central foundational topics in mathematics make use of the standard second-order representation of compact metric spaces. In the process of collecting evidence for the above slogan, we establish a number of equivalences involving Feferman's projection principle and countable choice. We also study generalisations to fourth-order arithmetic and beyond with similar-but-stronger results.
description: 23 pages plus references, to appear in the Journal of Symbolic Logic
Flore d'Afrique centrale - Spermatophyta - Casuarinaceae
Creators: name: Wilczek, R.
Publisher: name: Zenodo
Year: 1948
Subjects: Flora
Plants
Identification
Systematics
Taxonomy
Central Africa
Democratic Republic of the Congo
Rwanda
Burundi

description: PDF version of treatment of Casuarinaceae in Flore d'Afrique centrale series
title: Bleiben sie Herr'n?; [ca. 1919]
title: Oskar Cohn, Karl Radek, Rosenfeld, Neurath, Sinzheimer, Tob. Axelrod ; macht Deutschland für die Deutschen frei! Volkspartei
titleType: Subtitle
Creators: name: (:Unav)
Publisher: name: Universitätsbibliothek der Ludwig-Maximilians-Universität München
Year: 2009

description: NT: Umsturz ihr Stern! - Zweiteiliges Flugblatt mit Portr. u.a. auch von Kurt Eisner
Stability Regions of Equilibrium Points in Restricted Four-Body Problem with Oblateness Effects
Creators: name: Kumari, Reena
name: Kushvah, Badam Singh
Publisher: name: arXiv
Year: 2013
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: FOS: Physical sciences
subject: 70F15, 70F10, 70F07

description: In this paper, we extend the basic model of the restricted four-body problem introducing two bigger dominant primaries $m_1$ and $m_2$ as oblate spheroids when masses of the two primary bodies ($m_2$ and $m_3$) are equal. The aim of this study is to investigate the use of zero velocity surfaces and the Poincaré surfaces of section to determine the possible allowed boundary regions and the stability orbit of the equilibrium points. According to different values of Jacobi constant $C$, we can determine boundary region where the particle can move in possible permitted zones. The stability regions of the equilibrium points expanded due to presence of oblateness coefficient and various values of $C$, whereas for certain range of $t$ ($100 \le t \le 200$), orbits form a shape of cote's spiral. For different values of oblateness parameters $A_1~ (0
description: Online published: 16 November 2013
Stein Domains in Banach Algebraic Geometry
Creators: name: Bambozzi, Federico
name: Ben-Bassat, Oren
name: Kremnizer, Kobi
Publisher: name: arXiv
Year: 2015
Subjects: subject: Functional Analysis (math.FA)
subject: Algebraic Geometry (math.AG)
subject: Number Theory (math.NT)
subject: FOS: Mathematics
subject: 14A20, 13J07, 14G22, 14E25, 46M99, 18D10, 19D23, 14F20

description: In this article we give a homological characterization of the topology of Stein spaces over any valued base field. In particular, when working over the field of complex numbers, we obtain a characterization of the usual Euclidean (transcendental) topology of complex analytic spaces. For non-Archimedean base fields the topology we characterize coincides with the topology of the Berkovich analytic space associated to a non-Archimedean Stein algebra. Because the characterization we used is borrowed from a definition in derived geometry, this work should be read as a contribution towards the foundations of derived analytic geometry.
description: comments welcome
$L^p$-Bernstein inequalities on $C^2$-domains and applications to discretization
Creators: name: Dai, Feng
name: Prymak, Andriy
Publisher: name: arXiv
Year: 2020
Subjects: subject: Classical Analysis and ODEs (math.CA)
subject: Numerical Analysis (math.NA)
subject: FOS: Mathematics
subject: 42C05, 46N10, 42B99

description: We prove a new Bernstein type inequality in $L^p$ spaces associated with the tangential derivatives on the boundary of a general compact $C^2$-domain. We give two applications: Marcinkiewicz type inequality for discretization of $L^p$ norm and positive cubature formula. Both results are optimal in the sense that the number of function samples used has the order of the dimension of the corresponding space of algebraic polynomials.
description: the material in this article is based heavily on a part of arXiv:1910.11719
Solar energetic particles injected inside and outside a magnetic cloud: The widespread solar energetic particle event on 2022 January 20
Creators: name: Rodríguez-García, L.
name: Gómez-Herrero, R.
name: Dresing, N.
name: Balmaceda, L. A.
name: Palmerio, E.
name: Kouloumvakos, A.
name: Jebaraj, I. C.
name: Lara, F. Espinosa
name: Roco, M.
name: Palmroos, C.
name: Warmuth, A.
name: Nicolaou, G.
name: Mason, G. M.
name: Guo, J.
name: Laitinen, T.
name: Cernuda, I.
name: Nieves-Chinchilla, T.
name: Fedeli, A.
name: Lee, C. O.
name: Cohen, C. M. S.
name: Owen, C. J.
name: Ho, G. C.
name: Malandraki, O.
name: Vainio, R.
name: Rodríguez-Pacheco, J.
Publisher: name: arXiv
Year: 2024
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: Context. On 2022 January 20, the Energetic Particle Detector (EPD) on board Solar Orbiter measured a solar energetic particle (SEP) event showing unusual first arriving particles from the anti-Sun direction. Near-Earth spacecraft separated 17° in longitude to the west from Solar Orbiter measured classic antisunward-directed fluxes. STEREO-A and MAVEN, separated 18° to the east and 143° to the west from Solar Orbiter respectively, also observed the event, suggesting that particles spread over at least 160° in the heliosphere.
 Results. Solar Orbiter was embedded in a MC erupting on 16 January from the same active region as that related to the SEP event on 20 January. The SEP event is related to a M5.5 flare and a fast CME-driven shock of 1433 km/s, which injected particles within and outside the MC. Taken together, the hard SEP spectra, the presence of a Type II radio burst, and the co-temporal Type III radio burst being observed from 80 MHz that appears to emanate from the Type II burst, suggest that the shock is likely the main accelerator of the particles.
 Conclusions. Our detailed analysis of the SEP event strongly suggests that the energetic particles are mainly accelerated by a CME-driven shock and are injected into and outside of a previous MC present in the heliosphere at the time of the particle onset. The sunward-propagating SEPs measured by Solar Orbiter are produced by the injection of particles along the longer (western) leg of the MC still connected to the Sun at the time of the release of the particles. The determined electron propagation path length inside the MC is around 30% longer than the estimated length of the loop leg of the MC itself (based on the graduated cylindrical shell model), which is consistent with the low number of field line rotations.
description: Accepted by A&A, 23 pages, 19 figures
Confronting new NICER mass-radius measurements with phase transition in dense matter and twin compact stars
Creators: name: Li, Jia Jie
name: Sedrakian, Armen
name: Alford, Mark
Publisher: name: arXiv
Year: 2024
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: The (re)analysis of data on the X-ray emitting pulsars PSR J0030+0451 and J0740+6620, as well as new results on PSR J0437-4715 and J1231-1411, are confronted with the predictions of the equation of state (EoS) models allowing for strong first-order phase transition for the mass-radius ($M$-$R$) diagram. We use models that are based on a covariant density functional (CDF) EoS for nucleonic matter at low densities and a quark matter EoS, parameterized by the speed of sound, at higher densities. To account for the variations in the ellipses for PSR J0030+0451 obtained from different analyses, we examined three scenarios to assess their consistency with our models, focusing particularly on the potential formation of twin stars. We found that in two scenarios, where the ellipses for PSR J0030+0451 and J0437-4715 with masses close to the canonical mass $\sim 1.4\,M_{\odot}$ are significantly separated, our models allow for the presence of twin stars as a natural explanation for potential differences in the radii of these stars.
description: v2, 12 pages, 4 figures, matches published version
Flore d'Afrique centrale - Spermatophyta - Annonaceae
Creators: name: Boutique, R.
Publisher: name: Zenodo
Year: 1951
Subjects: Flora
Plants
Identification
Botany
Systematics
Taxonomy
Central Africa
Democratic Republic of the Congo
Rwanda
Burundi

description: PDF version of treatment of Annonaceae in Flore d'Afrique centrale series
title: Performance of Constraint-Handling Techniques Applied to a Genetic Algorithm-Based Watershed Management Model
Creators: name: Yu, Kwisun Park
Publisher: name: Old Dominion University Libraries
Year: 2004

description: Wet detention ponds are a commonly used structural best management practice to reduce nonpoint source pollutant loading into receiving water bodies. Design of these ponds is typically carried out individually to meet a target total suspended solids (TSS) removal level. An improvement to this approach is to generate cost-effective pond configurations that meet system-wide targets for removal of pollutant loadings, corresponding to a specific build-out land use plan. The cost-effectiveness can be further improved through appropriate land use allocation planning conducted simultaneously with the design of detention ponds. Harrell and Ranjithan (2003) presented an evolutionary algorithm- (EA-) based modeling approach to address this problem. The model includes constraints on the system-wide land use distribution, which were handled using penalty functions. Most penalty function implementations, which are incorporated into the fitness criterion to degrade the fitness of solutions that violate constraints, require the user to specify and fine-tune penalty factors that determine the amount of penalty assigned as a function of the level of constraint violation. Alternative techniques have also been reported in the literature, including a multi-objective optimization technique that treats the constraints in single objective problems as additional objectives (Coello, 2000a) and the stochastic ranking procedure (Runarsson and Yao, 2000), both of which have been shown to perform efficiently for other engineering applications. This research investigates the performance of three penalty function implementations and two alternative techniques for constraint handling in a watershed management problem. The alternative techniques include the multi-objective technique proposed by Coello (2000a), and a proposed stochastic selection technique. The various methods are implemented in the EA-based watershed management model and applied to a case study involving the City Lake watershed in North Carolina. The performance of the EA, including the ability to consistently find high-quality solutions that satisfy the constraints, and the fine-tuning and computational effort required, is investigated for each technique. A comparison of the perforn1ances is made to help provide guidelines for the most promising constraint-handling techniques for EA-based watershed management.
Magnetic quadrupole dichroism in isotropic medium
Creators: name: Fomin, A. A.
name: Kozlov, G. G.
name: Petrenko, M. V.
name: Petrov, M. Yu.
name: Smirnov, D. S.
name: Zapasskii, V. S.
Publisher: name: arXiv
Year: 2024
Subjects: subject: Optics (physics.optics)
subject: Atomic Physics (physics.atom-ph)
subject: FOS: Physical sciences

description: For isotropic media, the magnetic field applied across the light propagation direction affects their optical properties only in the second order, and its effect proves to be much weaker than in the longitudinal field. In this work, we show that, under resonant excitation well beyond the linear regime, the situation changes drastically: A small magnetic linear anisotropy considerably increases, and an even stronger new quadrupole dichroism emerges. The latter manifests itself as the 90$^\circ$-periodic azimuthal dependence of the transmission and anisotropic rotation of the probe polarization plane. These effects are described microscopically in a toy model, and their symmetry analysis is presented. Both are observed experimentally on the D2 resonance of cesium vapor and agree with the theoretical predictions. The large magnitude of the quadrupole dichroism makes it promising for magnetometric applications and for studying the effects of anisotropic bleaching.
description: 9 pages, 7 figures
Perversely categorified Lagrangian correspondences
Creators: name: Amorim, Lino
name: Ben-Bassat, Oren
Publisher: name: arXiv
Year: 2016
Subjects: subject: Symplectic Geometry (math.SG)
subject: High Energy Physics - Theory (hep-th)
subject: Algebraic Geometry (math.AG)
subject: FOS: Mathematics
subject: FOS: Physical sciences

description: In this article, we construct a $2$-category of Lagrangians in a fixed shifted symplectic derived stack S. The objects and morphisms are all given by Lagrangians living on various fiber products. A special case of this gives a $2$-category of $n$-shifted symplectic derived stacks $Symp^n$. This is a $2$-category version of Weinstein's symplectic category in the setting of derived symplectic geometry. We introduce another $2$-category $Symp^{or}$ of $0$-shifted symplectic derived stacks where the objects and morphisms in $Symp^0$ are enhanced with orientation data. Using this, we define a partially linearized $2$-category $LSymp$. Joyce and his collaborators defined a certain perverse sheaf on any oriented $(-1)$-shifted symplectic derived stack. In $LSymp$, the $2$-morphisms in $Symp^{or}$ are replaced by the hypercohomology of the perverse sheaf assigned to the $(-1)$-shifted symplectic derived Lagrangian intersections. To define the compositions in $LSymp$ we use a conjecture by Joyce, that Lagrangians in $(-1)$-shifted symplectic stacks define canonical elements in the hypercohomology of the perverse sheaf over the Lagrangian. We refine and expand his conjecture and use it to construct $LSymp$ and a $2$-functor from $Symp^{or}$ to $LSymp$. We prove Joyce's conjecture in the most general local model. Finally, we define a $2$-category of $d$-oriented derived stacks and fillings. Taking mapping stacks into a $n$-shifted symplectic stack defines a $2$-functor from this category to $Symp^{n-d}$.
description: v3: improved exposition; couple of results added
Nonequilibrium quantum criticality in open systems: The dissipation rate as an additional indispensable scaling variable
Creators: name: Yin, Shuai
name: Mai, Peizhi
name: Zhong, Fan
Publisher: name: arXiv
Year: 2013
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: We propose that nonequilibrium quantum criticality in open systems at both zero and finite temperatures can be described by a master equation of the Lindblad form. We derive this equation from a system coupling microscopic to a heat bath. It is suggested to be valid generally for studying dynamical quantum criticality and is thus designated as Model Q upon generalizing Hohenberg and Halperin's classification of classical critical dynamics. We find that the dissipation rate in the equation must be included in the scaling forms as an indispensable additional scaling variable in order to correctly describe the nonequilibrium quantum critical behavior. Yet, the equilibrium fixed point determines the nonequilibrium critical behavior in the weak coupling limit. Through numerically solving the Lindblad equation for the quantum Ising chain, we attest these propositions by finite-time scaling forms with the dissipation rate. Nonequilibrium dynamic critical behavior of spontaneous emissions in dissipative open systems at zero temperature near their quantum critical points is found and is also described well by the scaling forms. Model Q thus provides a general approach to study quantum critical behavior of a system itself through its weak coupling to the environment.
description: 5 figures
Das deutsche Volk und sein Kaiser haben vierundvierzig Jahre den Frieden gewahrt, zuletzt bis an die Grenze der nationalen Ehre und Daseinserhaltung. ...; [ca. 1916]
Creators: name: (:Unav)
Publisher: name: Universitätsbibliothek der Ludwig-Maximilians-Universität München
Year: 2009

description: Links oben eingedr. Vermerk "Streng vertraulich!". - Beschreibt dt. Eroberungspläne und erwartete Kriegsentschädigungen!
Generalized Deligne-Hitchin Twistor Spaces: Construction and Properties
Creators: name: Hu, Zhi
name: Huang, Pengfei
name: Zong, Runhong
Publisher: name: arXiv
Year: 2020
Subjects: subject: Algebraic Geometry (math.AG)
subject: FOS: Mathematics

description: In this paper, we generalize the construction of Deligne-Hitchin twistor space by gluing two certain Hodge moduli spaces. We investigate such generalized Deligne-Hitchin twistor space as a complex analytic manifold. More precisely, we show it admits holomorphic sections with weight-one property and semi-negative energy, and it carries a balanced metric, and its holomorphic tangent bundle (for the case of rank one) is stable. Moreover, we also study the automorphism groups of the Hodge moduli spaces and the generalized Deligne-Hitchin twistor space.
description: Final version, fix a mistake, comments welcome!
Flore d'Afrique centrale - Spermatophyta - Amaranthaceae
Creators: name: Hauman, L.
Publisher: name: Zenodo
Year: 1951
Subjects: Flora
Identification
Plants
Botany
Systematics
Taxonomy
Central Africa
Democratic Republic of the Congo
Rwanda
Burundi

description: PDF version of treatment of Amaranthaceae in Flore d'Afrique centrale series
Universal tester for multiple independence testing and classical-quantum arbitrarily varying multiple access channel
Creators: name: Dasgupta, Ayanava
name: Warsi, Naqueeb Ahmad
name: Hayashi, Masahito
Publisher: name: arXiv
Year: 2024
Subjects: subject: Information Theory (cs.IT)
subject: FOS: Computer and information sciences

description: We study two kinds of different problems. One is the multiple independence testing, which can be considered as a kind of generalization of quantum Stein's lemma. We test whether the quantum system is correlated to the classical system or is independent of it. Here, the null hypothesis is composed of states having the quantum system is correlated to the classical system in an arbitrarily varying form. The second problem is the problem of reliable communication over classical-quantum arbitrarily varying multiple access channels (CQ-AVMAC) and establishing its capacity region by giving multiple achievability techniques. We prove that each of these techniques is optimal by proving a converse. Further, for both these techniques, the decoder designed is a \emph{universal} decoder and can achieve any rate pair in the capacity region without time sharing and also these decoders do not depend on the channel and therefore they are universal. Our result covers the case when the channel parameter is continuous, which has not been studied even in the classical case. Further, both these techniques can be easily generalized to the case when there are $T (T>2)$ senders. The design of each of these decoders is based on the study of multiple independence testing. This approach allows us to study the problem of reliable communication over CQ-AVMAC from the point of view of hypothesis testing. Further, we also give a necessary and sufficient condition for the deterministic code capacity region of CQ-AVMAC to be non-empty.
description: 60 pages
The cosmic-ray positron energy spectrum measured by PAMELA
Creators: name: PAMELA Collaboration
name: Adriani, O.
name: Barbarino, G. C.
name: Bazilevskaya, G. A.
name: Bellotti, R.
name: Bianco, A.
name: Boezio, M.
name: Bogomolov, E. A.
name: Bongi, M.
name: Bonvicini, V.
name: Bottai, S.
name: Bruno, A.
name: Cafagna, F.
name: Campana, D.
name: Carbone, R.
name: Carlson, P.
name: Casolino, M.
name: Castellini, G.
name: De Donato, C.
name: De Santis, C.
name: De Simone, N.
name: Di Felice, V.
name: Formato, V.
name: Galper, A. M.
name: Karelin, A. V.
name: Koldashov, S. V.
name: Koldobskiy, S. A.
name: Krutkov, S. Y.
name: Kvashnin, A. N.
name: Leonov, A.
name: Malakhov, V.
name: Marcelli, L.
name: Martucci, M.
name: Mayorov, A. G.
name: Menn, W.
name: Merge', M.
name: Mikhailov, V. V.
name: Mocchiutti, E.
name: Monaco, A.
name: Mori, N.
name: Munini, R.
name: Osteria, G.
name: Palma, F.
name: Papini, P.
name: Pearce, M.
name: Picozza, P.
name: Pizzolotto, C.
name: Ricci, M.
name: Ricciarini, S. B.
name: Rossetto, L.
name: Sarkar, R.
name: Scotti, V.
name: Simon, M.
name: Sparvoli, R.
name: Spillantini, P.
name: Stochaj, S. J.
name: Stockton, J. C.
name: Stozhkov, Y. I.
name: Vacchi, A.
name: Vannuccini, E.
name: Vasilyev, G. I.
name: Voronov, S. A.
name: Yurkin, Y. T.
name: Zampa, G.
name: Zampa, N.
name: Zverev, V. G.
Publisher: name: arXiv
Year: 2013
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: Precision measurements of the positron component in the cosmic radiation provide important information about the propagation of cosmic rays and the nature of particle sources in our Galaxy. The satellite-borne experiment PAMELA has been used to make a new measurement of the cosmic-ray positron flux and fraction that extends previously published measurements up to 300 GeV in kinetic energy. The combined measurements of the cosmic-ray positron energy spectrum and fraction provide a unique tool to constrain interpretation models. During the recent solar minimum activity period from July 2006 to December 2009 approximately 24500 positrons were observed. The results cannot be easily reconciled with purely secondary production and additional sources of either astrophysical or exotic origin may be required.
description: 14 pages, 4 figures, 1 table. Accepted for publication in Physical Review Letters. Corrected a typo in the flux units of Table 1