cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Probing the long-range structure of the $T_{cc}^+$ with the strong and electromagnetic decays
Creators: name: Meng, Lu
name: Wang, Guang-Juan
name: Wang, Bo
name: Zhu, Shi-Lin
Publisher: name: arXiv
Year: 2021
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: Very recently, the LHCb Collaboration reported the doubly charmed tetraquark state $T_{cc}^+$ below the $D^{*+}D^0$ threshold about $273$ keV. As a very near-threshold state, its long-distance structure is very important. In the molecular scheme, we relate the coupling constants of $T_{cc}^+$ with $D^{*0}D^+$ and $D^{*+}D^0$ to its binding energy and mixing angle of two components with a coupled-channel effective field theory. With the coupling constants, we investigate the kinetically allowed strong decays $T_{cc}^+\to D^0D^0π^+$, $T_{cc}^+\to D^+D^0π^0$ and radiative decays $D^+D^0 γ$. Our results show that the decay width of $T_{cc}^+\to D^0D^0π^+$ is the largest one, which is just the experimental observation channel. Our theoretical total strong and radiative widths are in favor of the $T_{cc}^+$ as a $|D^{*+}D^0\rangle$ dominated bound state. The total strong and radiative width in the single channel limit and isospin singlet limit are given as $59.7^{+4.6}_{-4.4} \text{ keV}$ and $46.7^{+2.7}_{-2.9} \text{ keV}$, respectively. Our calculation is cutoff-independent and without prior isospin assignment. The absolute partial widths and ratios of the different decay channels can be used to test the structure of $T_{cc}^+$ state when the updated experimental results are available.
description: 7 pages, 4 figures; Accepted version by Letter in Physical Review D
A Case Study for Cinematic Adaptation: Jindabyne by Ray Lawrence
Creators: name: Cecconi, Pamela
Publisher: name: Annali Online  Lettere - Ferrara
Year: 2013

description: Lo scopo del presente articolo è quello di individuare le modalità in base alle quali il regista australiano Ray Lawrence ha adattato sullo schermo So Much Water So Close to Home, uno dei racconti di Raymond Carver più frequentemente antologizzati. Tramite un confronto ravvicinato con la sua matrice testuale, si può osservare, nello specifico, come il film di Lawrence – Jindabyne (2006) – ricrei ed elabori le componenti della storia redatta da Carver, dotandole al contempo di significati sconosciuti all’originale. L’analisi intrapresa tende dunque a focalizzare l’attenzione sui livelli semantici del film, e soprattutto sulla sua possibile lettura in chiave postcoloniale. Pur sembrando una riproduzione piuttosto fedele delle articolazioni di superficie di So Much Water So Close to Home, il film si costituisce infatti come un prodotto autonomo rispetto alla fonte narrativa, della quale altera le implicazioni connotative sia sul piano diegetico che su quello prettamente simbolico. In questo senso Lawrence dimostra di sfruttare appieno le potenzialità del mezzo filmico per affrontare, comunicandone la complessità allo spettatore, tematiche concernenti il rapporto tra la comunità dei bianchi e la popolazione aborigena. Ciò che infine emerge è che la traduzione intersemiotica realizzata dal regista produce livelli semantici nuovi e illuminanti, per mezzo dei quali viene trasmesso al pubblico un messaggio improntato ai temi della tolleranza e del rispetto tra culture.
description: Annali Online  Lettere - Ferrara, VIII 1 (2013)
Hiding in plain sight – platelets, the silent carriers of HIV-1
Creators: name: Baumer, Yvonne
name: Weatherby, Tina M.
name: Mitchell, Brooks I.
name: SahBandar, Ivo N.
name: Premeaux, Thomas A.
name: L., D’Antoni Michelle
name: Gutierrez-Huerta, Cristhian A.
name: Powell-Wiley, Tiffany M.
name: Brown, Timothy R.
name: Boisvert, William A.
name: Shikuma, Cecilia M.
name: Ndhlovu, Lishomwa C.
Publisher: name: Taylor & Francis
Year: 2021
Subjects: subject: Medicine
subject: Biotechnology
subject: Immunology
subject: FOS: Clinical medicine
subject: 19999 Mathematical Sciences not elsewhere classified
subject: FOS: Mathematics
subject: Cancer
subject: Statistics
subject: 110309 Infectious Diseases
subject: FOS: Health sciences
subject: 60506 Virology
subject: FOS: Biological sciences

description: There are approximately 38 million people globally living with Human immunodeficiency virus 1 (HIV-1) and given the tremendous success of combination antiretroviral therapy (cART) this has dramatically reduced mortality and morbidity with prevention benefits. However, HIV-1 persists during cART within the human body and re-appears upon cART interruption. This HIV-1 reservoir remains a barrier to cure with cellular sites of viral persistence not fully understood. In this study we provide evidence corroborating a recently published article in STM demonstrating the role of platelets as a novel cellular disseminator of HIV-1 particles in the setting of viral suppression. Using classical transmission electron microscopy with and without immunogold labeling, we visualize HIV-1 in both platelets and monocytes in cART suppressed HIV donors. Our study suggests that due to the close proximity of platelets and monocytes an alternative life cycle of HIV-1 cycling within monocytes and platelets without the need of active replication under cART occurs. Our findings are supported by the lack of detectable HIV-1 particles in platelets derived from HIV uninfected donors or the ‘Berlin’ patient suggesting that platelets may serve as an underappreciated hidden bearer for HIV-1 and should be considered in HIV remission studies and trials.
Gabriele Simoncini, Revolutionary Organizations and Revolutionaries in Interbellum Poland. A Bibliographical Biographical Study
Creators: name: Haustein, Ulrich
Publisher: name: Zeitschrift für Ostmitteleuropa-Forschung
Year: 1997

description: Zeitschrift für Ostmitteleuropa-Forschung, Bd. 46 Nr. 1 (1997)
Ständefreiheit und Staatsgestaltung in Ostmitteleuropa
Creators: name: Hoensch, Jörg K.
Publisher: name: Zeitschrift für Ostmitteleuropa-Forschung
Year: 1998

description: Zeitschrift für Ostmitteleuropa-Forschung, Bd. 47 Nr. 3 (1998)
Nilpotent aspherical Sasakian manifolds
Creators: name: De Nicola, Antonio
name: Yudin, Ivan
Publisher: name: arXiv
Year: 2022
Subjects: subject: Differential Geometry (math.DG)
subject: FOS: Mathematics
subject: 57R19, 57R55, 53C25

description: We show that every compact aspherical Sasakian manifold with nilpotent fundamental group is diffeomorphic to a Heisenberg nilmanifold.
description: 23 pages, to appear in IMRN
Brachyrhynchus hoberlandti Kormilev 1960
Creators: name: Heiss, Ernst
Publisher: name: Zenodo
Year: 2012
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Hemiptera
Aradidae
Brachyrhynchus
Brachyrhynchus hoberlandti

description: Brachyrhynchus hoberlandti (Kormilev), 1960
Mezira hoberlandti Kormilev, 1960: 166. HT 3: Madagascar (Antongil Bay); HNHM Brachyrhynchus hoberlandti Kormilev & Froeschner, 1987: 116 Distr.: Madagascar
Ref.: Kormilev & Froeschner, 1987 (cat.)
description: Published as part of Heiss, Ernst, 2012, Annotated catalogue of the flat bug family Aradidae Brullé, 1836 of Madagascar and adjacent islands (Hemiptera: Heteroptera), pp. 45-63 in Zootaxa 3426 (1) on page 51, DOI: 10.11646/zootaxa.3426.1.3, http://zenodo.org/record/214110
Optical Integral in the Cuprates and the Question of Sum Rule Violation
Creators: name: Norman, M. R.
name: Chubukov, A. V.
name: van Heumen, E.
name: Kuzmenko, A. B.
name: van der Marel, D.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: Much attention has been given to a possible violation of the optical sum rule in the cuprates, and the connection this might have to kinetic energy lowering. The optical integral is composed of a cut-off independent term (whose temperature dependence is a measure of the sum rule violation), plus a cut-off dependent term that accounts for the extension of the Drude peak beyond the upper bound of the integral. We find that the temperature dependence of the optical integral in the normal state of the cuprates can be accounted for solely by the latter term, implying that the dominant contribution to the observed sum rule `violation' in the normal state is due to the finite cut-off. This cut-off dependent term is well modeled by a theory of electrons interacting with a broad spectrum of bosons.
description: some clarifications and minor additions are offered in the final (published) version
An instrumental variable approach under dependent censoring
Creators: name: Crommen, Gilles
name: Beyhum, Jad
name: Van Keilegom, Ingrid
Publisher: name: arXiv
Year: 2022
Subjects: subject: Statistics Theory (math.ST)
subject: FOS: Mathematics

description: This paper considers the problem of inferring the causal effect of a variable $Z$ on a dependently censored survival time $T$. We allow for unobserved confounding variables, such that the error term of the regression model for $T$ is correlated with the confounded variable $Z$. Moreover, $T$ is subject to dependent censoring. This means that $T$ is right censored by a censoring time $C$, which is dependent on $T$ (even after conditioning out the effects of the measured covariates). A control function approach, relying on an instrumental variable, is leveraged to tackle the confounding issue. Further, it is assumed that $T$ and $C$ follow a joint regression model with bivariate Gaussian error terms and an unspecified covariance matrix such that the dependent censoring can be handled in a flexible manner. Conditions under which the model is identifiable are given, a two-step estimation procedure is proposed, and it is shown that the resulting estimator is consistent and asymptotically normal. Simulations are used to confirm the validity and finite-sample performance of the estimation procedure. Finally, the proposed method is used to estimate the causal effect of job training programs on unemployment duration.
Code Reviews with Divergent Review Scores: An Empirical Study of the OpenStack and Qt Communities
Creators: name: Hirao, Toshiki
name: McIntosh, Shane
name: Ihara, Akinori
name: Matsumoto, Kenichi
Publisher: name: arXiv
Year: 2021
Subjects: subject: Software Engineering (cs.SE)
subject: FOS: Computer and information sciences

description: Code review is a broadly adopted software quality practice where developers critique each others' patches. In addition to providing constructive feedback, reviewers may provide a score to indicate whether the patch should be integrated. Since reviewer opinions may differ, patches can receive both positive and negative scores. If reviews with divergent scores are not carefully resolved, they may contribute to a tense reviewing culture and may slow down integration. In this paper, we study patches with divergent review scores in the OPENSTACK and QT communities. Quantitative analysis indicates that patches with divergent review scores: (1) account for 15%-37% of patches that receive multiple review scores; (2) are integrated more often than they are abandoned; and (3) receive negative scores after positive ones in 70% of cases. Furthermore, a qualitative analysis indicates that patches with strongly divergent scores that: (4) are abandoned more often suffer from external issues (e.g., integration planning, content duplication) than patches with weakly divergent scores and patches without divergent scores; and (5) are integrated often address reviewer concerns indirectly (i.e., without changing patches). Our results suggest that review tooling should integrate with release schedules and detect concurrent development of similar patches to optimize review discussions with divergent scores. Moreover, patch authors should note that even the most divisive patches are often integrated through discussion, integration timing, and careful revision.
description: 2 pages, 1 table, Journal First, International Conference on Software Engineering 2021
Modelling of anthropogenic pollutant diffusion in the atmosphere and applications to civil protection monitoring
Creators: name: Tessarotto, Marco
name: Tessarotto, Massimo
Publisher: name: arXiv
Year: 2008
Subjects: subject: Fluid Dynamics (physics.flu-dyn)
subject: Atmospheric and Oceanic Physics (physics.ao-ph)
subject: FOS: Physical sciences

description: A basic feature of fluid mechanics concerns the frictionless phase-space dynamics of particles in an incompressible fluid. The issue, besides its theoretical interest in turbulence theory, is important in many applications, such as the pollutant dynamics in the atmosphere, a problem relevant for civil protection monitoring of air quality. Actually, both the numerical simulation of the ABL (atmospheric boundary layer) portion of the atmosphere and that of pollutant dynamics may generally require the correct definition of the Lagrangian dynamics which characterizes arbitrary fluid elements of incompressible thermofluids. We claim that particularly important for applications would be to consider these trajectories as phase-space trajectories. This involves, however, the unfolding of a fundamental theoretical problem up to now substantially unsolved: {\it namely the determination of the exact frictionless dynamics of tracer particles in an incompressible fluid, treated either as a deterministic or a turbulent (i.e., stochastic) continuum.} In this paper we intend to formulate the necessary theoretical framework to construct such a type of description. This is based on a phase-space inverse kinetic theory (IKT) approach recently developed for incompressible fluids (Ellero \textit{et al.}, 2004-2008). {\it Our claim is that the conditional frictionless dynamics of a tracer particles - which corresponds to a prescribed velocity probability density and an arbitrary choice of the relevant fluid fields - can be exactly specified}.
description: Contributed paper at RGD26 (Kyoto, Japan, July 2008)
Hannes Stekl, Marija Wakounig, Windisch-Graetz. Ein Fürstenhaus im 19. und 20. Jahrhundert
Creators: name: Luft, Robert
Publisher: name: Zeitschrift für Ostmitteleuropa-Forschung
Year: 1995

description: Zeitschrift für Ostmitteleuropa-Forschung, Bd. 44 Nr. 2 (1995)
Fritz Banke, Geschichte der Neisser Presse bis zum Jahre 1870. Ein Beitrag zur Geschichte des Neisser Landes
Creators: name: Greber, Michael Rüdiger
Publisher: name: Zeitschrift für Ostmitteleuropa-Forschung
Year: 1998

description: Zeitschrift für Ostmitteleuropa-Forschung, Bd. 47 Nr. 1 (1998)
Multipole State of Heavy Lanthanide Filled Skutterudites
Creators: name: Hotta, Takashi
Publisher: name: arXiv
Year: 2007
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: We discuss multipole properties of filled skutterudites containing heavy lanthanide Ln from a microscopic viewpoint on the basis of a seven-orbital Anderson model. For Ln=Gd, in contrast to naive expectation, quadrupole moments remain in addition to main dipole ones. For Ln=Ho, we find an exotic state governed by octupole moment. For Ln=Tb and Tm, no significant multipole moments appear at low temperatures, while for Ln=Dy, Er, and Yb, dipole and higher-order multipoles are dominant. We briefly discuss possible relevance of these multipole states with actual materials.
description: 5 pages, 3 figures
ResearchBox 3319, 'Wait to Eat', https://researchbox.org/3319
Creators: name: Janina Steinmetz
name: Irene Scopelliti
name: Anna Paley
Publisher: name: Zenodo
Year: 2025

description: Box title: 'Wait to Eat'   Reference: PALEY A, SCOPELLITI I, STEINMETZ J. (2025) 'Wait or Eat? Self-Other Differences in a Commonly Held Food Norm'. Appetite. :108021. doi: https://doi.org/10.1016/j.appet.2025.108021Note: this backup was created automatically by a ResearchBox bot
The CARMENES search for exoplanets around M dwarfs -- Planet occurrence rates from a subsample of 71 stars
Creators: name: Sabotta, S.
name: Schlecker, M.
name: Chaturvedi, P.
name: Guenther, E. W.
name: Rodríguez, I. Muñoz
name: Sánchez, J. C. Muñoz
name: Caballero, J. A.
name: Shan, Y.
name: Reffert, S.
name: Ribas, I.
name: Reiners, A.
name: Hatzes, A. P.
name: Amado, P. J.
name: Klahr, H.
name: Morales, J. C.
name: Quirrenbach, A.
name: Henning, Th.
name: Dreizler, S.
name: Pallé, E.
name: Perger, M.
name: Azzaro, M.
name: Jeffers, S. V.
name: Kaminski, A.
name: Kürster, M.
name: Lafarga, M.
name: Montes, D.
name: Passegger, V. M.
name: Zechmeister, M.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: FOS: Physical sciences

description: The CARMENES exoplanet survey of M dwarfs has obtained more than 18 000 spectra of 329 nearby M dwarfs over the past five years as part of its guaranteed time observations (GTO) program. We determine planet occurrence rates with the 71 stars from the GTO program for which we have more than 50 observations. We use injection-and-retrieval experiments on the radial-velocity (RV) time series to measure detection probabilities. We include 27 planets in 21 planetary systems in our analysis. We find 0.06+0.04-0.03 giant planets (100 M_Earth < M_pl sin i < 1000 M_Earth) per star in periods of up to 1000 d, but due to a selection bias this number could be up to a factor of five lower in the whole 329-star sample. The upper limit for hot Jupiters (orbital period of less than 10 d) is 0.03 planets per star, while the occurrence rate of planets with intermediate masses (10 M_Earth < M_pl sin i < 100 M_Earth) is 0.18+0.07-0.05 planets per star. Less massive planets with 1 M_Earth < M_pl sin i < 10 M_Earth are very abundant, with an estimated rate of 1.32+0.33-0.31 planets per star for periods of up to 100 d. When considering only late M dwarfs with masses M_star < 0.34 M_sol, planets more massive than 10 M_Earth become rare. Instead, low-mass planets with periods shorter than 10 d are significantly overabundant. For orbital periods shorter than 100 d, our results confirm the known stellar mass dependences from the Kepler survey: M dwarfs host fewer giant planets and at least two times more planets with M_pl sin i < 10 M_Earth than G-type stars. In contrast to previous results, planets around our sample of very low-mass stars have a higher occurrence rate in short-period orbits of less than 10 d. Our results demonstrate the need to take into account host star masses in planet formation models.
description: 15 pages, 12 figures. Accepted for publication in Astronomy & Astrophysics
Bootstrap-based models for sub-daily rainfall time series simulation
Creators: name: Papacharalampous, Georgia
Publisher: name: figshare
Year: 2021
Subjects: subject: 10401 Applied Statistics
subject: FOS: Mathematics
subject: Hydrology
subject: 80306 Open Software
subject: FOS: Computer and information sciences
subject: 80110 Simulation and Modelling
subject: Statistics
subject: 10406 Stochastic Analysis and Modelling
subject: 90509 Water Resources Engineering
subject: FOS: Civil engineering

description: We formulate and code in R programming language three bootstrap-based models for sub-daily rainfall time series simulation, namely the Boot-GammaDist-CondBoot, CoSMoS-CondBoot and MarkovChain-GammaDist-CondBoot models. These models rely on diverse parametric stochastic methods for performing daily rainfall time series simulation and, subsequently, adopt the same conditional block bootstrap-based modelling scheme to disaggregate their daily rainfall simulations at the sub-daily temporal resolution of interest.
Unser Schicksal - eine Mahnung für Euch. Berichte und Erinnerungen der Häftlinge von Majdanek
Creators: name: Friedrich, Klaus-Peter
Publisher: name: Zeitschrift für Ostmitteleuropa-Forschung
Year: 1996

description: Zeitschrift für Ostmitteleuropa-Forschung, Bd. 45 Nr. 3 (1996)
Generation of Fourier transform limited heralded single photons
Creators: name: U'Ren, Alfred B.
name: Jeronimo-Moreno, Yasser
name: Garcia-Gracia, Jose H.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: In this paper we study the spectral (temporal) properties of heralded single photon wavepackets, triggered by the detection of an idler photon in the process of parametric downconversion. The generated single photons are studied within the framework of the chronocyclic Wigner function, from which the single photon spectral width and temporal duration can be computed. We derive specific conditions on the two-photon joint spectral amplitude which result in both pure and Fourier- transform limited heralded single photons. Likewise, we present specific source geometries which lead to the fulfilment of these conditions and show that one of these geometries leads, for a given pump bandwidth, to the temporally shortest possible heralded single photon wavepackets.
description: 10 pages, 3 figure, PHYSICAL REVIEW A 75, 023810
Erika Kruppa, Das Vereinswesen der Prager Vorstadt Smichow 1850-1875
Creators: name: Reich, Andreas
Publisher: name: Zeitschrift für Ostmitteleuropa-Forschung
Year: 1995

description: Zeitschrift für Ostmitteleuropa-Forschung, Bd. 44 Nr. 2 (1995)
Generic phase diagram of active polar films
Creators: name: Voituriez, R.
name: Joanny, J. F.
name: Prost, J.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: FOS: Physical sciences

description: We study theoretically the phase diagram of compressible active polar gels such as the actin network of eukaryotic cells. Using generalized hydrodynamics equations, we perform a linear stability analysis of the uniform states in the case of an infinite bidimensional active gel to obtain the dynamic phase diagram of active polar films. We predict in particular modulated flowing phases, and a macroscopic phase separation at high activity. This qualitatively accounts for experimental observations of various active systems, such as acto-myosin gels, microtubules and kinesins in vitro solutions, or swimming bacterial colonies.
description: 4 pages, 1 figure
Discovery of a Metal-Poor Red Giant Star with the Highest Ultra-Lithium Enhancement
Creators: name: Kowkabany, Jeremy
name: Ezzeddine, Rana
name: Charbonnel, Corinne
name: Roederer, Ian U.
name: Wang, Ella Xi
name: Li, Yangyang
name: Hackshaw, Zoe
name: Beers, Timothy C.
name: Frebel, Anna
name: Hansen, Terese T.
name: Holmbeck, Erika
name: Placco, Vinicius M.
name: Sakari, Charli M.
Publisher: name: arXiv
Year: 2022
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: We present the discovery of 2MASS J05241392-0336543 (hereafter J0524-0336), a very metal-poor ([Fe/H]=-2.43 +- 0.16), highly r-process-enhanced ([Eu/Fe]= +1.34 +- 0.10) Milky Way halo field red giant star, with an ultra high Li abundance of A(Li)(3D,NLTE)= 6.15 +- 0.25 and [Li/Fe]= +7.64 +- 0.25, respectively. This makes J0524-0336 the most lithium-enhanced giant star discovered to date. We present a detailed analysis of the star's atmospheric stellar parameters and chemical abundance determinations. Additionally, we detect indications of infrared excess, as well as observe variable emission in the wings of the H_alpha absorption line across multiple epochs, indicative of a potential enhanced mass-loss event with possible outflows. Our analysis reveals that J0524-0336 lies either between the bump and the tip of the Red Giant Branch (RGB), or on the early-Asymptotic Giant Branch (e-AGB). We investigate the possible sources of lithium enrichment in J0524-0336, including both internal and external sources. Based on current models and on the observational evidence we have collected, our study shows that J0524-0336 may be undergoing the so-called lithium flash that is expected to occur in low-mass stars when they reach the RGB bump and/or the early-AGB.
description: 25 pages, 4 tables, 10 figures, Accepted for publication in ApJ
Bernhard Gröschel unter Mitarbeit von Günter Lewald und Marlene PIum, Studien und Materialien zur oberschlesischen Tendenzpublizistik des 19. und 20. Jahrhunderts
Creators: name: Abmeier, Hans-Ludwig
Publisher: name: Zeitschrift für Ostmitteleuropa-Forschung
Year: 1998

description: Zeitschrift für Ostmitteleuropa-Forschung, Bd. 47 Nr. 1 (1998)
Magnetism of NiMn2O4-Fe3O4 Spinel Interfaces
Creators: name: Nelson-Cheeseman, B. B.
name: Chopdekar, R. V.
name: Bettinger, J. S.
name: Arenholz, E.
name: Suzuki, Y.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: We investigate the magnetic properties of the isostructural spinel-spinel interface of NiMn2O4(NMO)-Fe3O4. Although the magnetic transition temperature of the NMO film is preserved, both bulk and interface sensitive measurements demonstrate that the interface exhibits strong interfacial magnetic coupling up to room temperature. While NMO thin films have a ferrimagnetic transition temperature of 60K, both NiFe2O4 and MnFe2O4 are ferrimagnetic at room temperature. Our experimental results suggest that these magnetic properties arise from a thin interdiffused region of (Fe,Mn,Ni)3O4 at the interface leading to Mn and Ni magnetic properties similar to MnFe2O4 and NiFe2O4.
description: 3 figures
An asymptotic-preserving 2D-2P relativistic Drift-Kinetic-Equation solver for runaway electron simulations in axisymmetric tokamaks
Creators: name: Chacon, Luis
name: Daniel, Don
name: Taitano, William T.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Plasma Physics (physics.plasm-ph)
subject: Computational Physics (physics.comp-ph)
subject: FOS: Physical sciences

description: We propose an asymptotic-preserving (AP), uniformly convergent numerical scheme for the relativistic collisional Drift-Kinetic Equation (rDKE) to simulate runaway electrons in axisymmetric toroidal magnetic field geometries typical of tokamak devices. The approach is derived from an exact Green's function solution with numerical approximations of quantifiable impact, and results in a simple, two-step operator-split algorithm, consisting of a collisional Eulerian step, and a Lagrangian orbit-integration step with analytically prescribed kernels. The AP character of the approach is demonstrated by analysis of the dominant numerical errors, as well as by numerical experiments. We demonstrate the ability of the algorithm to provide accurate answers regardless of plasma collisionality on a circular axisymmetric tokamak geometry.
Local correlation functional for electrons in two dimensions
Creators: name: Pittalis, S.
name: Rasanen, E.
name: Marques, M.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: We derive a local approximation for the correlation energy in two-dimensional electronic systems. In the derivation we follow the scheme originally developed by Colle and Salvetti for three dimensions, and consider a Gaussian approximation for the pair density. Then, we introduce an ad-hoc modification which better accounts for both the long-range correlation, and the kinetic-energy contribution to the correlation energy. The resulting functional is local, and depends parametrically on the number of electrons in the system. We apply this functional to the homogeneous electron gas and to a set of two-dimensional quantum dots covering a wide range of electron densities and thus various amounts of correlation. In all test cases we find an excellent agreement between our results and the exact correlation energies. Our correlation functional has a form that is simple and straightforward to implement, but broadly outperforms the commonly used local-density approximation.
An all order renormalizable Refined-Gribov-Zwanziger model with BRST invariant fermionic horizon function in linear covariant gauges
Creators: name: Capri, M. A. L.
name: Sorella, S. P.
name: Terin, R. C.
Publisher: name: arXiv
Year: 2021
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We introduce, within the Refined-Gribov-Zwanziger setup, a composite BRST invariant fermionic operator coupled to the inverse of the Faddeev-Popov operator. As a result, an effective BRST invariant action in Euclidean space-time is constructed, enabling us to pave the first step towards the study of the behaviour of the fermion propagator in the infrared region in the class of the linear covariant gauges. The aforementioned action is proven to be renormalizable to all orders by means of the algebraic renormalization procedure.
description: 31 pages. Some remarks were added
Czesław Partacz, Od Badeniego do Potockiego. Stosunki polsko-ukraińskie w Galicji w latach 1888-1908
Creators: name: Jobst, Kerstin S.
Publisher: name: Zeitschrift für Ostmitteleuropa-Forschung
Year: 1997

description: Zeitschrift für Ostmitteleuropa-Forschung, Bd. 46 Nr. 1 (1997)
Two-dimensional phase transition models and λϕ^4 field theory
Creators: name: Sokolov, A. I.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: High Energy Physics - Lattice (hep-lat)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: The overview is given of the results obtained recently in the course of renormalization-group (RG) study of two-dimensional (2D) models. RG functions of the two-dimensional n-vector λϕ^4 Euclidean field theory are written down up to the five-loop terms and perturbative series are resummed by the Pade-Borel-Leroy techniques. An account for the five-loop term is shown to shift the Wilson fixed point only briefly, leaving it outside the segment formed by the results of the lattice calculations. This is argued to reflect the influence of the non-analytical contribution to the β-function. The evaluation of the critical exponents for n = 1, n = 0 and n = -1 in the five-loop approximation and comparison of the results with known exact values confirm the conclusion that non-analytical contributions are visible in two dimensions. The estimates obtained on the base of pseudo-εexpansions originating from the 5-loop 2D RG series are also discussed.
description: 13 pages, 7 tables, to appear in J. Phys. Studies 10, No 4 (2006)
The weak type $(1,1)$ bounds for the maximal function associated to cubes grow to infinity with the dimension
Creators: name: Aldaz, J. M.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Classical Analysis and ODEs (math.CA)
subject: FOS: Mathematics
subject: 42B25

description: Let $M_d$ be the centered Hardy-Littlewood maximal function associated to cubes in $\mathbb{R}^d$ with Lebesgue measure, and let $c_d$ denote the lowest constant appearing in the weak type (1,1) inequality satisfied by $M_d$. We show that $c_d \to \infty$ as $d\to \infty$, thus answering, for the case of cubes, a long standing open question of E. M. Stein and J. O. Strömberg.
description: A very similar version to this posting (but with fewer explicit constants, in order to satisfy the requests of an anonymous referee) is to appear in Ann. Math.; additionally, and with respect to the last version, this one contains several simplifications and improvements in the exposition, suggested by the referee
title: Returns of Cultural Artefacts and Human Remains in a (Post)colonial Context: Mapping Claims between the mid-19th Century and the 1970s
Creators: name: Müller, Lars
Publisher: name: Max Weber Stiftung
Year: 2021
Subjects: subject: Kulturgut
subject: Rückgabe
subject: Postkolonialismus
subject: Geschichte 1800-1980
subject: 909
subject: 32
subject: 300.9

description: Working Paper Deutsches Zentrum Kulturgutverluste, vol. 1/2021
Designing Gapped Soft Functions for Jet Production
Creators: name: Hoang, Andre H.
name: Stewart, Iain W.
Publisher: name: arXiv
Year: 2007
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Theory (hep-th)
subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: Distributions in jet production often depend on a soft function, S, which describes hadronic radiation between the jets. Near kinematic thresholds S encodes nonperturbative information, while far from thresholds S can be computed with an operator product expansion (OPE). We design soft functions for jets that serve this dual purpose, reducing to the perturbative result in the OPE region and to a consistent model in the nonperturbative region. We use the MSbar scheme, and in both regions S displays the appropriate renormalization group scale dependence. We point out that viable soft function models should have a gap associated with the minimum hadronic energy deposit. This gap is connected to the leading O(Lambda_QCD) renormalon ambiguity in jet event shapes. By defining the gap in a suitable scheme we demonstrate that the leading renormalon can be eliminated. This improves the convergence of perturbative results, and also the stability by which non-perturbative parameters encode the underlying soft physics.
description: 17 pages, 5 figures
Stochastic Direct Search Method for Blind Resource Allocation
Creators: name: Achddou, Juliette
name: Cappe, Olivier
name: Garivier, Aurélien
Publisher: name: arXiv
Year: 2022
Subjects: subject: Artificial Intelligence (cs.AI)
subject: Statistics Theory (math.ST)
subject: FOS: Computer and information sciences
subject: FOS: Mathematics

description: Motivated by programmatic advertising optimization, we consider the task of sequentially allocating budget across a set of resources. At every time step, a feasible allocation is chosen and only a corresponding random return is observed. The goal is to maximize the cumulative expected sum of returns. This is a realistic model for budget allocation across subdivisions of marketing campaigns, with the objective of maximizing the number of conversions. We study direct search (also known as pattern search) methods for linearly constrained and derivative-free optimization in the presence of noise, which apply in particular to sequential budget allocation. These algorithms, which do not rely on hierarchical partitioning of the resource space, are easy to implement; they respect the operational constraints of resource allocation by avoiding evaluation outside of the feasible domain; and they are also compatible with warm start by being (approximate) descent algorithms. However, they have not yet been analyzed from the perspective of cumulative regret. We show that direct search methods achieves finite regret in the deterministic and unconstrained case. In the presence of evaluation noise and linear constraints, we propose a simple extension of direct search that achieves a regret upper-bound of the order of $T^{2/3}$. We also propose an accelerated version of the algorithm, relying on repeated sequential testing, that significantly improves the practical behavior of the approach.
Chaotic motion of Charged Particles in an Electromagnetic Field Surrounding a Rotating Black Hole
Creators: name: Takahashi, Masaaki
name: Koyama, Hiroko
Publisher: name: arXiv
Year: 2008
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: The observational data from some black hole candidates suggest the importance of electromagnetic fields in the vicinity of a black hole. Highly magnetized disk accretion may play an importance rule, and large scale magnetic field may be formed above the disk surface. Then, we expect that the nature of the black hole spacetime would be reveiled by magnetic phenomena near the black hole. We will start to investigate the motion of a charged particle which depends on the initial parameter setting in the black hole dipole magnetic field. Specially, we study the spin effects of a rotating black hole on the motion of the charged particle trapped in magnetic field lines. We make detailed analysis for the particle's trajectories by using the Poincaré map method, and show the chaotic properties that depend on the black hole spin. We find that the dragging effects of the spacetime by a rotating black hole weaken the chaotic properties and generate regular trajectories for some sets of initial parameters, while the chaotic properties dominate on the trajectories for slowly rotating black hole cases. The dragging effects can generate the fourth adiabatic invariant on the particle motion approximately.
description: 20 pages, 12 figures, submitted to ApJ
A general model of MnSi-like spiral magnets
Creators: name: Hall, K. P. W.
name: Curnoe, S. H.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Other Condensed Matter (cond-mat.other)
subject: FOS: Physical sciences

description: A general, symmetry-allowed model of nearest-neighbour interactions for MnSi-like magnets is presented. A left-handed helical magnet phase occurs within a large parameter space of the model, which is explored via numerical simulation. The relations between microscopic features of the spiral structure and various model parameters, including an external magnetic field, are determined and show good agreement with predictions from free energy considerations. A skyrmion structure is stabilized near the boundary.
Table SM1 from Isochrony in Titi Monkeys duets: social context as a proximate cause of duets’ rhythm and regularity
Creators: name: De Gregorio, Chiara
name: Antonini, Paola
name: Heymann, Eckhard W.
name: Gamba, Marco
Publisher: name: The Royal Society
Year: 2025
Subjects: classificationCode: 310901
subject: Animal behaviour

description: Terms used and their definitions
Embedding Gauss-Bonnet scalarization models in higher dimensional topological theories
Creators: name: Herdeiro, Carlos
name: Radu, Eugen
name: Tchrakian, D. H.
Publisher: name: arXiv
Year: 2021
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: In the presence of appropriate non-minimal couplings between a scalar field and the curvature squared Gauss-Bonnet (GB) term, compact objects such as neutron stars and black holes (BHs) can spontaneously scalarize, becoming a preferred vacuum. Such strong gravity phase transitions have attracted considerable attention recently. The non-minimal coupling functions that allow this mechanism are, however, always postulated ad hoc. Here we point out that families of such functions naturally emerge in the context of Higgs--Chern-Simons gravity models, which are found as dimensionally descents of higher dimensional, purely topological, Chern-Pontryagin non-Abelian densities. As a proof of concept, we study spherically symmetric scalarized BH solutions in a particular Einstein-GB-scalar field model, whose coupling is obtained from this construction, pointing out novel features and caveats thereof. The possibility of vectorization is also discussed, since this construction also originates vector fields non-minimally coupled to the GB invariant.
description: 12 pages, 3 figures
Gravitational Wave Background from Population III Stars
Creators: name: Suwa, Yudai
name: Takiwaki, Tomoya
name: Kotake, Kei
name: Sato, Katsuhiko
Publisher: name: arXiv
Year: 2007
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We estimate the gravitational wave (GW) background from Population III (Pop III) stars using the results from our hydrodynamic simulations (Suwa et al. 2007). We calculate gravitational waveforms from matter motions and anisotropic neutrino emissions for single Pop III stars. We find that the GW amplitudes from matter motions are dominant until just after bounce, but those from neutrinos dominate later on at frequencies below $\sim 10$ Hz in the GW spectrum. Computing the overall signal produced by the ensemble of such Pop III stars, we find that the resultant density parameter of the GW background peaks at the amplitude of $Ω_\mathrm{GW}\sim 10^{-10}$ in the frequency interval $\sim 1-10$ Hz. We show that such signals, depending on the formation rate of Pop III stars, can be within the detection limits of future planned interferometers such as DECIGO and BBO in the frequency interval of $\sim 0.1-1$ Hz. Our results suggest that the detection of the GW background from Pop III stars can be an important tool to supply the information about the star formation history in the early universe.
description: 4 pages, 3 figures, accepted for publication in ApJL
Bernhard Piotrowski, W służbie nauki i narodu. Instytut Bałtycki w latach 1925-1939
Creators: name: Hartmann, Stefan
Publisher: name: Zeitschrift für Ostmitteleuropa-Forschung
Year: 1995

description: Zeitschrift für Ostmitteleuropa-Forschung, Bd. 44 Nr. 2 (1995)
Computads and string diagrams for $n$-sesquicategories
Creators: name: Araújo, Manuel
Publisher: name: arXiv
Year: 2022
Subjects: subject: Category Theory (math.CT)
subject: FOS: Mathematics
subject: 18N20, 18N30

description: An $n$-sesquicategory is an $n$-globular set with strictly associative and unital composition and whiskering operations, which are however not required to satisfy the Godement interchange laws which hold in $n$-categories. In arXiv:2202.09293 we showed how these can be defined as algebras over a monad $T_n^{D^s}$ whose operations are simple string diagrams. In this paper, we give an explicit description of computads for the monad $T_n^{D^s}$ and we prove that the category of computads for this monad is a presheaf category. We use this to describe a string diagram notation for representing arbitrary composites in $n$-sesquicategories. This is a step towards a theory of string diagrams for semistrict $n$-categories.
Inflationary Cosmology as a Probe of Primordial Quantum Mechanics
Creators: name: Valentini, Antony
Publisher: name: arXiv
Year: 2008
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Astrophysics (astro-ph)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We show that inflationary cosmology may be used to test the statistical predictions of quantum theory at very short distances and at very early times. Hidden-variables theories, such as the pilot-wave theory of de Broglie and Bohm, allow the existence of vacuum states with non-standard field fluctuations ('quantum nonequilibrium'). We show that inflationary expansion can transfer microscopic nonequilibrium to macroscopic scales, resulting in anomalous power spectra for the cosmic microwave background. The conclusions depend only weakly on the details of the de Broglie-Bohm dynamics. We discuss, in particular, the nonequilibrium breaking of scale invariance for the primordial (scalar) power spectrum. We also show how nonequilibrium can generate primordial perturbations with non-random phases and inter-mode correlations (primordial non-Gaussianity). We address the possibility of a low-power anomaly at large angular scales, and show how it might arise from a nonequilibrium suppression of quantum noise. Recent observations are used to set an approximate bound on violations of quantum theory in the early universe.
description: 44 pages. Minor changes in v2
A different perspective on the vev insertion approximation for electroweak baryogenesis
Creators: name: Postma, Marieke
Publisher: name: arXiv
Year: 2021
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: In the vev insertion approximation (VIA) the spacetime dependent part of the mass matrix is treated as a perturbation. We calculate the source terms for baryogenesis expanding both the self-energy and propagator to first order in mass insertions, which gives the same results as the usual approach of calculating the self-energy at second order and using zeroth order propagators. This procedure shows explicitly the equivalence between including the mass in the free or in the interaction Lagrangian. The VIA source then originates from the same term in the kinetic equation as the semi-classical source, but at leading order in the derivative expansion (the expansion in diamond operators). On top, another type of derivative expansion is done, which we estimate to be valid for a bubble width larger than the inverse thermal width. This cuts off the divergence in the VIA source in the limit that the thermal width vanishes.
description: 17 pages, 1 figure. Published version
Pseudoclassical description of scalar particle in non-Abelian background and path-integral representations
Creators: name: Fresneda, R.
name: Gitman, D.
Publisher: name: arXiv
Year: 2007
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: Path-integral representations for a scalar particle propagator in non-Abelian external backgrounds are derived. To this aim, we generalize the procedure proposed by Gitman and Schvartsman 1993 of path-integral construction to any representation of SU(N) given in terms of antisymmetric generators. And for arbitrary representations of SU(N), we present an alternative construction by means of fermionic coherent states. From the path-integral representations we derive pseudoclassical actions for a scalar particle placed in non-Abelian backgrounds. These actions are classically analyzed and then quantized to prove their consistency.
Table SM5 from Isochrony in Titi Monkeys duets: social context as a proximate cause of duets’ rhythm and regularity
Creators: name: De Gregorio, Chiara
name: Antonini, Paola
name: Heymann, Eckhard W.
name: Gamba, Marco
Publisher: name: The Royal Society
Year: 2025
Subjects: classificationCode: 310901
subject: Animal behaviour

description: Model result on gap duration
On the linear convergence of additive Schwarz methods for the $p$-Laplacian
Creators: name: Lee, Young-Ju
name: Park, Jongho
Publisher: name: arXiv
Year: 2022
Subjects: subject: Numerical Analysis (math.NA)
subject: FOS: Mathematics
subject: 65N55, 65J15, 65K15

description: We consider additive Schwarz methods for boundary value problems involving the $p$-Laplacian. While existing theoretical estimates suggest a sublinear convergence rate for these methods, empirical evidence from numerical experiments demonstrates a linear convergence rate. In this paper, we narrow the gap between these theoretical and empirical results by presenting a novel convergence analysis. Firstly, we present a new convergence theory for additive Schwarz methods written in terms of a quasi-norm. This quasi-norm exhibits behavior akin to the Bregman distance of the convex energy functional associated with the problem. Secondly, we provide a quasi-norm version of the Poincar'{e}--Friedrichs inequality, which plays a crucial role in deriving a quasi-norm stable decomposition for a two-level domain decomposition setting. By utilizing these key elements, we establish the asymptotic linear convergence of additive Schwarz methods for the $p$-Laplacian.
description: 26 pages, 8 figures