cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Quasiconvexity of virtual joins and separability of products in relatively hyperbolic groups
Creators: name: Minasyan, Ashot
name: Mineh, Lawk
Publisher: name: arXiv
Year: 2022
Subjects: subject: Group Theory (math.GR)
subject: FOS: Mathematics

description: A relatively hyperbolic group $G$ is said to be QCERF if all finitely generated relatively quasiconvex subgroups are closed in the profinite topology on $G$. Assume that $G$ is a QCERF relatively hyperbolic group with double coset separable (e.g., virtually polycyclic) peripheral subgroups. Given any two finitely generated relatively quasiconvex subgroups $Q,R \leqslant G$ we prove the existence of finite index subgroups $Q'\leqslant_f Q$ and $R' \leqslant_f R$ such that the join $\langle Q',R'\rangle$ is again relatively quasiconvex in $G$. We then show that, under the minimal necessary hypotheses on the peripheral subgroups, products of finitely generated relatively quasiconvex subgroups are closed in the profinite topology on $G$. From this we obtain the separability of products of finitely generated subgroups for several classes of groups, including limit groups, Kleinian groups and balanced fundamental groups of finite graphs of free groups with cyclic edge groups.
description: Minor corrections, final journal version
Central engines of Gamma Ray Bursts. Magnetic mechanism in the collapsar model
Creators: name: Barkov, Maxim V.
name: Komissarov, Serguei S.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: In this study we explore the magnetic mechanism of hypernovae and relativistic jets of long duration gamma ray bursts within the collapsar scenario. This is an extension of our earlier work [1]. We track the collapse of massive rotating stars onto a rotating central black hole using axisymmetric general relativistic magnetohydrodynamic code that utilizes a realistic equation of state and takes into account the cooling associated with emission of neutrinos and the energy losses due to dissociation of nuclei. The neutrino heating is not included. We describe solutions with different black hole rotation, mass accretion rate, and strength of progenitor's magnetic field. Some of them exhibits strong explosions driven by Poynting-dominated jets with power up to $12\times10^{51} {erg s}^{-1}$. These jets originate from the black hole and powered via the Blandford-Znajek mechanism. A provisional criterion for explosion is derived. A number of simulation movies can be downloaded from http://www.maths.leeds.ac.uk/~serguei/research/movies/anim.html
description: 4 pages, 3 figures, GAMMA08 Heidelberg Symposium
Application of a small oscillating magnetic field to reveal the peak effect in the resistivity of Nb3Sn
Creators: name: Reibelt, Mark
name: Schilling, Andreas
name: Toyota, Naoki
Publisher: name: arXiv
Year: 2009
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: By the application of a small oscillating magnetic field parallel to the main magnetic field and perpendicular to the transport current, we were able to unveil the peak effect in the resistivity data of Nb$_3$Sn near the upper critical field $H_{c2}$. We investigated the dependence of this effect on the frequency and the amplitude of the oscillating magnetic field and show that the used technique can be more sensitive to detect the peak effect in a certain range of temperatures and magnetic fields than conventional magnetization measurements.
description: 17 pages, 10 figures
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title: ÑÑÐµÐ±Ð½Ð¾Ðµ Ð¿Ð¾ÑÐ¾Ð±Ð¸Ðµ
titleType: Subtitle
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name: ÐÑÑÑÑ, ÐÐ¸ÐºÑÐ¾Ñ
name: ÐÐ¸ÑÐ°ÐµÐ²Ð°, ÐÐ°ÑÑÑ
Publisher: name: ÐÐÐÐÐ¢ÐÐ¥-ÐÐ ÐÐ¡Ð¡
Year: 2023
Subjects: Ð¡Ð¾Ð¿ÑÐ¾ÑÐ¸Ð²Ð»ÐµÐ½Ð¸Ðµ Ð¼Ð°ÑÐµÑÐ¸Ð°Ð»Ð¾Ð²
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description: Ð Ð°ÑÑÐ¼Ð¾ÑÑÐµÐ½Ñ Ð²Ð°ÑÐ¸Ð°Ð½ÑÑ Ð¸ÑÐ¿Ð¾Ð»ÑÐ·Ð¾Ð²Ð°Ð½Ð¸Ñ Ð¾Ð±ÑÐ¸Ñ Ð²Ð¾Ð¿ÑÐ¾ÑÐ¾Ð² ÑÐ¸Ð»Ð¾ÑÐ¾ÑÐ¸Ð¸ Ð¸ ÐµÐµ ÐºÐ°ÑÐµÐ³Ð¾ÑÐ¸Ð¹ Ð² ÐºÑÑÑÐµ ÑÐ¾Ð¿ÑÐ¾ÑÐ¸Ð²Ð»ÐµÐ½Ð¸Ñ Ð¼Ð°ÑÐµÑÐ¸Ð°Ð»Ð¾Ð². ÐÐ¾ÐºÐ°Ð·Ð°Ð½Ð¾ Ð·Ð½Ð°ÑÐµÐ½Ð¸Ðµ ÐºÑÑÑÐ° ÑÐ¾Ð¿ÑÐ¾ÑÐ¸Ð²Ð»ÐµÐ½Ð¸Ñ Ð¼Ð°ÑÐµÑÐ¸Ð°Ð»Ð¾Ð² Ð² ÑÐ²ÐµÑÐµ Ð·Ð°Ð´Ð°Ñ Ð¼Ð¾Ð´ÐµÑÐ½Ð¸Ð·Ð°ÑÐ¸Ð¸ Ð Ð¾ÑÑÐ¸Ð¸. ÐÐ±Ð¾Ð·Ð½Ð°ÑÐµÐ½Ð° Ð²Ð°Ð¶Ð½Ð¾ÑÑÑ Ð¿ÑÐµÐ´Ð¼ÐµÑÐ° Ð² ÑÐ²ÑÐ·Ð¸ Ñ Ð¸Ð½Ð½Ð¾Ð²Ð°ÑÐ¸Ð¾Ð½Ð½ÑÐ¼ ÑÐ°Ð·Ð²Ð¸ÑÐ¸ÐµÐ¼. ÐÐ¾Ð´ÑÐµÑÐºÐ¸Ð²Ð°ÐµÑÑÑ Ð¼Ð°ÑÐµÑÐ¸Ð°Ð»ÑÐ½ÑÐ¹ Ð¸ Ð¾Ð±ÑÐµÐºÑÐ¸Ð²Ð½ÑÐ¹ ÑÐ°ÑÐ°ÐºÑÐµÑ Ð¸ÑÑÐ»ÐµÐ´ÑÐµÐ¼ÑÑ Ð¾Ð±ÑÐµÐºÑÐ¾Ð², Ð¸Ñ Ð²Ð·Ð°Ð¸Ð¼Ð½Ð°Ñ ÑÐ²ÑÐ·Ñ Ð¸ Ð²Ð·Ð°Ð¸Ð¼Ð¾Ð¾Ð±ÑÑÐ»Ð¾Ð²Ð»ÐµÐ½Ð½Ð¾ÑÑÑ. ÐÑÐ¾Ð¸Ð»Ð»ÑÑÑÑÐ¸ÑÐ¾Ð²Ð°Ð½Ð° Ð´Ð¸Ð°Ð»ÐµÐºÑÐ¸ÐºÐ° Ð¿ÑÐ¾ÑÑÑÐ°Ð½ÑÑÐ²ÐµÐ½Ð½Ð¾-Ð²ÑÐµÐ¼ÐµÐ½Ð½ÑÑ ÑÐ²ÑÐ·ÐµÐ¹. ÐÑÐ¸Ð²ÐµÐ´ÐµÐ½ Ð²ÐºÐ»Ð°Ð´ ÑÑÑÑÐºÐ¸Ñ ÑÑÐµÐ½ÑÑ Ð² ÑÐ°Ð·Ð²Ð¸ÑÐ¸Ðµ Ð¼ÐµÑÐ°Ð½Ð¸ÐºÐ¸ Ð¸ Ð½Ð°ÑÐºÐ¸ Ð¾ Ð¿ÑÐ¾ÑÐ½Ð¾ÑÑÐ¸. Ð£ÑÐµÐ±Ð½Ð¾Ðµ Ð¿Ð¾ÑÐ¾Ð±Ð¸Ðµ Ð¿ÑÐµÐ´Ð½Ð°Ð·Ð½Ð°ÑÐµÐ½Ð¾ Ð´Ð»Ñ ÑÑÑÐ´ÐµÐ½ÑÐ¾Ð² ÑÐµÑÐ½Ð¸ÑÐµÑÐºÐ¸Ñ Ð½Ð°Ð¿ÑÐ°Ð²Ð»ÐµÐ½Ð¸Ð¹ Ð¿Ð¾Ð´Ð³Ð¾ÑÐ¾Ð²ÐºÐ¸.
Digital control of force microscope cantilevers using a field programmable gate array
Creators: name: Jacky, Jonathan P.
name: Garbini, Joseph L.
name: Ettus, Matthew
name: Sidles, John A.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Instrumentation and Detectors (physics.ins-det)
subject: FOS: Physical sciences

description: This report describes a cantilever controller for magnetic resonance force microscopy (MRFM) based on a field programmable gate array (FPGA), along with the hardware and software used to integrate the controller into an experiment. The controller is assembled from a low-cost commercially available software defined radio (SDR) device and libraries of open-source software. The controller includes a digital filter comprising two cascaded second-order sections ("biquads"), which together can implement transfer functions for optimal cantilever controllers. An appendix in this report shows how to calculate filter coefficients for an optimal controller from measured cantilever characteristics. The controller also includes an input multiplexer and adder used in calibration protocols. Filter coefficients and multiplexer settings can be set and adjusted by control software while an experiment is running. The input is sampled at 64 MHz; the sampling frequency in the filters can be divided down under software control to achieve a good match with filter characterisics. Data reported here were sampled at 500 kHz, chosen for acoustic cantilevers with resonant frequencies near 8 kHz. Inputs are digitized with 12 bits resolution, outputs with 14 bits. The experiment software is organized as a client and server to make it easy to adapt the controller to different experiments. The server encapusulates the details of controller hardware organization, connection technology, filter architecture, and number representation. The same server could be used in any experiment, while a different client encodes the particulars of each experiment.
description: submitted to Review of Scientific Instruments
First Constraints on Heavy QCD Axions with a Liquid Argon Time Projection Chamber using the ArgoNeuT Experiment
Creators: name: ArgoNeuT Collaboration
name: Acciarri, R.
name: Adams, C.
name: Baller, B.
name: Basque, V.
name: Cavanna, F.
name: Co, R. T.
name: Fitzpatrick, R. S.
name: Fleming, B.
name: Green, P.
name: Harnik, R.
name: Kelly, K. J.
name: Kumar, S.
name: Lang, K.
name: Lepetic, I.
name: Liu, Z.
name: Luo, X.
name: Lyu, K. F.
name: Palamara, O.
name: Scanavini, G.
name: Soderberg, M.
name: Spitz, J.
name: Szelc, A. M.
name: Wu, W.
name: Yang, T.
Publisher: name: arXiv
Year: 2022
Subjects: subject: High Energy Physics - Experiment (hep-ex)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We present the results of a search for heavy QCD axions performed by the ArgoNeuT experiment at Fermilab. We search for heavy axions produced in the NuMI neutrino beam target and absorber decaying into dimuon pairs, which can be identified using the unique capabilities of ArgoNeuT and the MINOS near detector. This decay channel is motivated by a broad class of heavy QCD axion models that address the strong CP and axion quality problems with axion masses above the dimuon threshold. We obtain new constraints at a 95\% confidence level for heavy axions in the previously unexplored mass range between 0.2-0.9 GeV, for axion decay constants around tens of TeV.
description: 6 pages, 4 figures. Version accepted by PRL
Evaluating the Impact of State-Level Public Masking Mandates on New COVID-19 Cases and Deaths in the United States: A Demonstration of the Causal Roadmap
Creators: name: Wong, Angus K.
name: Balzer, Laura B.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Applications (stat.AP)
subject: Methodology (stat.ME)
subject: FOS: Computer and information sciences

description: At a national-level, we sought to investigate the effect of public masking mandates on COVID-19 in Fall 2020. Specifically, we aimed to evaluate how the relative growth of COVID-19 cases and deaths would have differed if all states had issued a mandate to mask in public by September 1, 2020 versus if all states had delayed issuing such a mandate. To do so, we applied the Causal Roadmap, a formal framework for causal and statistical inference. The outcome was defined as the state-specific relative increase in cumulative cases and in cumulative deaths {21, 30, 45, 60}-days after September 1. Despite the natural experiment in state-level masking policies, the causal effect of interest was not identifiable. Nonetheless, we specified the target statistical parameter as the adjusted rate ratio (aRR): the expected outcome with early implementation divided by the expected outcome with delayed implementation, after adjusting for state-level confounders. To minimize strong estimation assumptions, primary analyses used targeted maximum likelihood estimation (TMLE) with Super Learner. After 60-days and at a national-level, early implementation was associated 9% reduction in new COVID-19 cases (aRR: 0.91; 95%CI: 0.88-0.95) and a 16% reduction in new COVID-19 deaths (aRR: 0.84; 95%CI: 0.76-0.93). Although lack of identifiability prohibited causal interpretations, application of the Causal Roadmap facilitated estimation and inference of statistical associations, providing timely answers to pressing questions in the COVID-19 response.
description: 34 total page (including supp materials)
Big Toy Models: Representing Physical Systems As Chu Spaces
Creators: name: Abramsky, Samson
Publisher: name: arXiv
Year: 2009
Subjects: subject: Quantum Physics (quant-ph)
subject: Logic in Computer Science (cs.LO)
subject: Category Theory (math.CT)
subject: FOS: Physical sciences
subject: FOS: Computer and information sciences
subject: FOS: Mathematics

description: We pursue a model-oriented rather than axiomatic approach to the foundations of Quantum Mechanics, with the idea that new models can often suggest new axioms. This approach has often been fruitful in Logic and Theoretical Computer Science. Rather than seeking to construct a simplified toy model, we aim for a `big toy model', in which both quantum and classical systems can be faithfully represented - as well as, possibly, more exotic kinds of systems. To this end, we show how Chu spaces can be used to represent physical systems of various kinds. In particular, we show how quantum systems can be represented as Chu spaces over the unit interval in such a way that the Chu morphisms correspond exactly to the physically meaningful symmetries of the systems - the unitaries and antiunitaries. In this way we obtain a full and faithful functor from the groupoid of Hilbert spaces and their symmetries to Chu spaces. We also consider whether it is possible to use a finite value set rather than the unit interval; we show that three values suffice, while the two standard possibilistic reductions to two values both fail to preserve fullness.
description: 24 pages. Accepted for Synthese 16th April 2010. Published online 20th April 2011
Additional file 1 of Extracellular vesicles released from hiPSC-derived MSCs attenuate chronic prostatitis/chronic pelvic pain syndrome in rats by immunoregulation
Creators: name: Peng, Xufeng
name: Guo, Hailin
name: Yuan, Ji
name: Chen, Yu
name: Xia, Yuguo
name: Wang, Lin
name: Wang, Ying
name: Huang, Yichen
name: Xie, Hua
name: Wang, Yang
name: Chen, Fang
Publisher: name: figshare
Year: 2021
Subjects: subject: Biochemistry
subject: Cell Biology
subject: Physiology
subject: FOS: Biological sciences
subject: Chemical Sciences not elsewhere classified
subject: Immunology
subject: FOS: Clinical medicine
subject: Cancer

description: Additional file 1: Figure S1. Expression of vimentin. A, DAPI staining identifies cell nuclei. B, Negative staining of vimentin in iMSCs. C, Merged image of A and B.
The Hubble Tension, The $M$ Crisis of Late Time $H(z)$ Deformation Models and the Reconstruction of Quintessence Lagrangians
Creators: name: Theodoropoulos, Anastasios
name: Perivolaropoulos, Leandros
Publisher: name: arXiv
Year: 2021
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: We present a detailed and pedagogical analysis of recent cosmological data, including CMB, BAO, SnIa and the recent local measurement of $H_0$. We thus obtain constraints on the parameters of standard dark energy parameterizations, including $ΛCDM$, and $H(z)$ deformation models such as $wCDM$ (constant equation of state $w$ of dark energy), and the CPL model (corresponding to the evolving dark energy equation-of-state parameter $w(z) = w_0 + w_a \frac{z}{1+z}$). The fitted parameters include the dark matter density $Ω_{0m}$, the SnIa absolute magnitude $M$, the Hubble constant $H_0$ and the dark energy parameters (e.g., $w$ for $wCDM$). All models considered lead to a best-fit value of $M$ that is inconsistent with the locally determined value obtained by Cepheid calibrators ($M$ tension). We then use the best-fit dark energy parameters to reconstruct the quintessence Lagrangian that would be able to reproduce these best-fit parameterizations. Due to the derived late phantom behavior of the best-fit dark energy equation-of-state parameter $w(z)$, the reconstructed quintessence models have a negative kinetic term and are therefore plagued with instabilities.
description: 69 pages,4 tables,33 figures. Based on the BSc thesis of AT. Published in Universe 7 (2021) 8, 300. The numerical analysis files that were used for the production of the figures may be downloaded from: https://github.com/TasosTheodoropoulos/M_crisis
On the unfolding of simple closed curves
Creators: name: Pardon, John
Publisher: name: arXiv
Year: 2008
Subjects: subject: Differential Geometry (math.DG)
subject: FOS: Mathematics
subject: 53C24, 53A04

description: I show that every rectifiable simple closed curve in the plane can be continuously deformed into a convex curve in a motion which preserves arc length and does not decrease the Euclidean distance between any pair of points on the curve. This result is obtained by approximating the curve with polygons and invoking the result of Connelly, Demaine, and Rote that such a motion exists for polygons. I also formulate a generalization of their program, thereby making steps toward a fully continuous proof of the result. To facilitate this, I generalize two of the primary tools used in their program: the Farkas Lemma of linear programming to Banach spaces and the Maxwell-Cremona Theorem of rigidity theory to apply to stresses represented by measures on the plane.
description: to appear in Transactions of the AMS
Live Multi-Streaming and Donation Recommendations via Coupled Donation-Response Tensor Factorization
Creators: name: Lai, Hsu-Chao
name: Tsai, Jui-Yi
name: Shuai, Hong-Han
name: Huang, Jiun-Long
name: Lee, Wang-Chien
name: Yang, De-Nian
Publisher: name: arXiv
Year: 2021
Subjects: subject: Information Retrieval (cs.IR)
subject: Machine Learning (cs.LG)
subject: FOS: Computer and information sciences

description: In contrast to traditional online videos, live multi-streaming supports real-time social interactions between multiple streamers and viewers, such as donations. However, donation and multi-streaming channel recommendations are challenging due to complicated streamer and viewer relations, asymmetric communications, and the tradeoff between personal interests and group interactions. In this paper, we introduce Multi-Stream Party (MSP) and formulate a new multi-streaming recommendation problem, called Donation and MSP Recommendation (DAMRec). We propose Multi-stream Party Recommender System (MARS) to extract latent features via socio-temporal coupled donation-response tensor factorization for donation and MSP recommendations. Experimental results on Twitch and Douyu manifest that MARS significantly outperforms existing recommenders by at least 38.8% in terms of hit ratio and mean average precision.
Stability of concordance embeddings
Creators: name: Goodwillie, Thomas
name: Krannich, Manuel
name: Kupers, Alexander
Publisher: name: arXiv
Year: 2022
Subjects: subject: Algebraic Topology (math.AT)
subject: Geometric Topology (math.GT)
subject: FOS: Mathematics
subject: 57R40, 57S05, 58D05, 58D10

description: We prove a stability theorem for spaces of smooth concordance embeddings. From it we derive various applications to spaces of concordance diffeomorphisms and homeomorphisms.
description: 27 pages, 6 figures, to appear in Proceedings of the Royal Society of Edinburgh (Memorial volume in honour of Andrew Ranicki)
Hadrons as QCD Bound States
Creators: name: Hoyer, Paul
Publisher: name: arXiv
Year: 2021
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: Bound state perturbation theory is well established for QED atoms. Today the hyperfine splitting of Positronium is known to $O(α^7\logα)$. Whereas standard expansions of scattering amplitudes start from free states, bound states are expanded around eigenstates of the Hamiltonian including a binding potential. The eigenstate wave functions have all powers of $α$, requiring a choice in the ordering of the perturbative expansion. Temporal $(A^0=0)$ gauge permits an expansion starting from valence Fock states, bound by their instantaneous gauge field. This formulation is applicable in any frame and seems promising even for hadrons in QCD. The $O(α_s^0)$ confining potential is determined (up to a universal scale) by a homogeneous solution of Gauss' law.
description: 7 pages, 1 figure. Talk at the (virtual) "Quark Confinement and the Hadron Spectrum 2021" conference on 2 -- 6 August 2021 in Stavanger, Norway
An integer valued bi-invariant metric on the group of contactomorphisms of R^2n x S^1
Creators: name: Sandon, Sheila
Publisher: name: arXiv
Year: 2009
Subjects: subject: Symplectic Geometry (math.SG)
subject: Geometric Topology (math.GT)
subject: FOS: Mathematics

description: In his 1992 article on generating functions Viterbo constructed a bi-invariant metric on the group of compactly supported Hamiltonian symplectomorphisms of R^2n. Using the set-up of arXiv:0901.3112 we extend the Viterbo metric to the group of compactly supported contactomorphisms of R^2n x S^1 isotopic to the identity. We also prove that the contactomorphism group is unbounded with respect to this metric.
description: 10 pages, final version
Intensity-Dependent Enhancement of Saturable Absorption in PbS-Au4 Nanohybrid Composites: Evidence for Resonant Energy Transfer by Auger Recombination
Creators: name: Elim, Hendry I.
name: Ji, Wei
name: Yang, Jian
name: Lee, Jim Yang
Publisher: name: arXiv
Year: 2008
Subjects: subject: Optics (physics.optics)
subject: Chemical Physics (physics.chem-ph)
subject: FOS: Physical sciences

description: Intensity-dependent enhancement of saturable absorption in a film of PbS-Au4 nanohybrid composites has been observed by femtosecond time-resolved transient absorption measurement at 780 nm. The nonlinear absorption coefficient of saturable absorption in PbS-Au4 nanohybrid composites is found to be dependent on excitation irradiance and it is determined to be -2.9 cm/GW at 78 GW/cm2, an enhancement of nearly fourfold in comparison with that of pure PbS quantum dots (QDs). The enhancement is attributed to excitation of surface plasmon by resonant energy transfer between PbS QDs and Au nanoparticles through Auger recombination.
description: 14 pages, 3 figures. Accepted in Appl. Phys. Lett. (2008)
Multicomponent, multiwavelength benchmarks for source- and filament-extraction methods
Creators: name: Men'shchikov, A.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: FOS: Physical sciences

description: Modern multiwavelength observations of star-forming regions that reveal highly structured molecular clouds require adequate extraction methods that provide both detection of the structures and their accurate measurements. The omnipresence of filamentary structures and their physical connection to prestellar cores demand methods that are able to disentangle and extract both sources and filaments. It is fundamentally important to test all extraction methods to compare their detection and measurement qualities and fully understand their capabilities before their scientific applications. A recent publication described getsf, the new method for source and filament extraction that employs the separation of the structural components, a successor to getsources, getfilaments, and getimages (collectively referred to as getold). This new paper describes a detailed benchmarking of both getsf and getold using two multicomponent, multiwavelength benchmarks resembling the Herschel observations of the nearby star-forming regions. Each benchmark consists of simulated images at six Herschel wavelengths and one additional surface density image with a 13 arcsec resolution. The structural components of the benchmarks include a background cloud, a dense filament, hundreds of starless and protostellar cores, and instrumental noise. Five variants of benchmark images of different complexity are used to perform the source and filament extractions with getsf and getold. A formalism for evaluating source detection and measurement qualities is presented, allowing quantitative comparisons of extraction methods in terms of their completeness, reliability, and goodness, as well as the detection and measurement accuracies and the overall quality. A detailed analysis shows that getsf has better qualities than getold and that the best choice for source detection is the high-resolution surface density.
description: 26 pages, 16 figures, 5 tables, accepted by Astronomy & Astrophysics, final language-edited version
Non-commutative Supersymmetric Quantum Mechanics
Creators: name: Das, Ashok
name: Falomir, H.
name: Gamboa, J.
name: Mendez, F.
Publisher: name: arXiv
Year: 2008
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: General non-commutative supersymmetric quantum mechanics models in two and three dimensions are constructed and some two and three dimensional examples are explicitly studied. The structure of the theory studied suggest other possible applications in physical systems with potentials involving spin and non-local interactions.
description: some references added. PLB in press
Two Photon Distribution Amplitudes
Creators: name: Beiyad, M. El
name: Pire, B.
name: Szymanowski, L.
name: Wallon, S.
Publisher: name: arXiv
Year: 2008
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: The factorization of the amplitude of the process gamma* gamma -> gamma gamma in the low energy and high photon virtuality region is demonstrated at the Born order and in the leading logarithmic approximation. The leading order two photon (generalized) distribution amplitudes exhibit a characteristic ln Q2 behaviour and obey new inhomogeneous evolution equations.
description: to be published in the proceedings of the workshop HLPW08, Spa, March 6-8, 2008, AIP conference proceedings series
A molecular relay race: sequential first-passage events to the terminal reaction centre in a cascade of diffusion controlled processes
Creators: name: Grebenkov, Denis S.
name: Metzler, Ralf
name: Oshanin, Gleb
Publisher: name: arXiv
Year: 2021
Subjects: subject: Biological Physics (physics.bio-ph)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Chemical Physics (physics.chem-ph)
subject: FOS: Physical sciences

description: We consider a sequential cascade of molecular first-reaction events towards a terminal reaction centre in which each reaction step is controlled by diffusive motion of the particles. The model studied here represents a typical reaction setting encountered in diverse molecular biology systems, in which, e.g., a signal transduction proceeds via a series of consecutive "messengers": the first messenger has to find its respective immobile target site triggering a launch of the second messenger, the second messenger seeks its own target site and provokes a launch of the third messenger and so on, resembling a relay race in human competitions. For such a molecular relay race taking place in infinite one-, two- and three-dimensional systems, we find exact expressions for the probability density function of the time instant of the terminal reaction event, conditioned on preceding successful reaction events on an ordered array of target sites. The obtained expressions pertain to the most general conditions: number of intermediate stages and the corresponding diffusion coefficients, the sizes of the target sites, the distances between them, as well as their reactivities are arbitrary.
title: Memoria de la Unidad de Recursos de Información Científica para la Investigación 2024
Creators: name: CSIC-Unidad De Recursos De Información Científica Para La Investigación (URICI)
Publisher: name: CSIC - Unidad de Recursos de Información Científica para la Investigación (URICI)
Year: 2025
Subjects: subject: Memoria anual
subject: Annual report
subject: Annual reports
subject: https://id.loc.gov/authorities/genreForms/gf2014026046.html

description: La Unidad de Recursos de Información Científica para la Investigación (URICI), dependiente de la Vicepresidencia de Organización y Relaciones Institucionales, coordina el desarrollo y funcionamiento de los servicios de apoyo a la investigación dentro del nuevo paradigma de la ciencia abierta. Coordina la Red de Bibliotecas y Archivos del CSIC, sus servicios presenciales y/o digitales, y la gestión automatizada de fondos bibliográficos, archivísticos y de sus colecciones digitales. Su misión principal es ofrecer servicios de información científica de soporte para la actividad investigadora del CSIC, organizándose como un sistema horizontal completo, homogéneo y de calidad.
The fundamental mathematical and acoustical properties of woodwind and brass instruments
Creators: name: Krush, Joseph Martin
Publisher: name: University of British Columbia
Year: 2010

description: The contents of this thesis belongs entirely to the area of instrumental acoustics. It is written in the style of a textbook for music students, and aims to serve an instructional and informative purpose. The first goal of the paper is to outline the manner in which woodwind and brass instruments function. Similarities and differences between individual instruments and families of instruments are discussed. The basis of the thesis is a disclosure of the physical properties of sound waves in general, waves in cylindrical tubes, waves in conical tubes, and waves in both these types of tubes with certain boundary conditions imposed on them. These properties are directly applied to the woodwind instruments, but they cannot be applied to brass instruments; consequently, a different procedure is adopted for their discussion. The original goal of the author was to discuss the most salient known, proven mathematical and acoustical properties of woodwind and brass instruments. In the process of doing this, conclusions evolved which led to a claim and subsequent formation of theories which are, to the best of the writer's knowledge, presented here for the first time, and which still remain to be completely proven by complex mathematical methods.
Comment on "Central limit behavior in deterministic dynamical systems"
Creators: name: Grassberger, Peter
Publisher: name: arXiv
Year: 2008
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: We check claims for a generalized central limit theorem holding at the Feigenbaum (infinite bifurcation) point of the logistic map, made recently by U. Tirnakli, C. Beck, and C. Tsallis (Phys. Rev. {\bf 75}, 040106(R) (2007)). We show that there is no obvious way that these claims can be made consistent with high statistics simulations. We also refute more recent claims by the same authors that extend the claims made in the above reference.
description: 3 pages, including 3 figures
HaloAE: An HaloNet based Local Transformer Auto-Encoder for Anomaly Detection and Localization
Creators: name: Mathian, E.
name: Liu, H.
name: Fernandez-Cuesta, L.
name: Samaras, D.
name: Foll, M.
name: Chen, L.
Publisher: name: arXiv
Year: 2022
Subjects: subject: Computer Vision and Pattern Recognition (cs.CV)
subject: Artificial Intelligence (cs.AI)
subject: FOS: Computer and information sciences

description: Unsupervised anomaly detection and localization is a crucial task as it is impossible to collect and label all possible anomalies. Many studies have emphasized the importance of integrating local and global information to achieve accurate segmentation of anomalies. To this end, there has been a growing interest in Transformer, which allows modeling long-range content interactions. However, global interactions through self attention are generally too expensive for most image scales. In this study, we introduce HaloAE, the first auto-encoder based on a local 2D version of Transformer with HaloNet. With HaloAE, we have created a hybrid model that combines convolution and local 2D block-wise self-attention layers and jointly performs anomaly detection and segmentation through a single model. We achieved competitive results on the MVTec dataset, suggesting that vision models incorporating Transformer could benefit from a local computation of the self-attention operation, and pave the way for other applications.
description: 21 pages, 6 figures, rejected to ECCV 2023
Broadband Purcell effect: Radiative decay engineering with metamaterials
Creators: name: Jacob, Zubin
name: Smolyaninov, Igor
name: Narimanov, Evgenii
Publisher: name: arXiv
Year: 2009
Subjects: subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: Engineering the photonic density of states (PDOS) using resonant microcavities or periodic dielectric media gives control over a plethora of classical and quantum phenomena associated with light. Here, we show that nanostructured metamaterials with hyperbolic dispersion, possess a broad bandwidth singularity in the PDOS, an effect not present in any other photonic system, which allows remarkable control over light-matter interactions. A spectacular manifestation of this non-resonant PDOS alteration is the broadband Purcell effect, an enhancement in the spontaneous emission of a light source, which ultimately leads to a device that can efficiently harness a single photon from an isolated emitter. Our approach differs from conventional resonant Purcell effect routes to single photon sources with a limitation in bandwidth, which places restrictions on the probable use of such methods for practical device applications, especially at room temperature. The proposed metadevice, useful for applications from quantum communications to biosensing also opens up the possibility of using metamaterials to probe the quantum electrodynamic properties of atoms and artificial atoms such as quantum dots.
“A chiare lettere – Confronti” • L’Inquisizione come tipo di giudice immune da intuitus personae (papale, o episcopale). Un’alternativa per il superamento dell’attuale crisi dell’udienza penale diocesana e di quella della giustizia amministrativa
Creators: name: Zanchini Di Castiglionchio, Francesco
Publisher: name: Stato, Chiese e pluralismo confessionale
Year: 2021

description: SOMMARIO: 1. Preambolo - 2. Si autem peccaverit in te frater tuus. Un caso di sviluppo esorbitante di un brano scritturale? - 3. Istituzione e metanoia; ovvero della irriducibile individualità del soggetto - 4. Su una ipotesi “diffusa” di episkopé. Dislocazione dell’azione penale a livello collegiale? - 5. (segue) Verso un rinnovamento radicale del processo penale (e non solo). The inquisition as model for a papal or episcopal magistrature exempt from intuitus personae. Towards an alternative to overcome the current crisis of penal and administrative justice ABSTRACT: The purpose of this article is to highlight the remains of absolutism that still permeate the legal codes of the Catholic Church (1917 and 1983), as traceable in and hierarchical relationship existing between the udienza diocesana (diocesian audience) and the udienza pontificia (Papal audience) and the individualistic nature of both. The author highlights dramatic elements of inefficiency and anti-historical prejudice in these institutions, which contrast with the hegemonic collegial ethos that has emerged from Vatican II. In proposing the inquisition as archetypal model for a transversal concentration of the judicial districts of different dioceses - as already implemented since 1938 in regard to judgements of matrimonial annulment - the article supports the overcoming of the limits that canon 1423 imposes on the collegial autonomy of bishops. These limits - the author concludes - can be surmounted only by a gradual recentering a collegial strategy on a recognizable unitary fulcrum of penal jurisdiction and the institutionalization of that “tribunal administrativum” that had been promised by canon 1400, § 2, of the current code, but has remained buried between indolence and oblivion in the Papal Curia.
description: Stato, Chiese e pluralismo confessionale, 2021: 18 gennaio
The targum (1972:Apr. 3 - 1972:Apr. 28)
Creators: name: No Name Supplied
Publisher: name: Targum Association
Year: 1972

description: Some University historians indicate that the Targum was first published as an annual in 1867, but of this we have no extant evidence. In January 1869, the Targum as we now know it, made its appearance as a monthly paper that concerned itself with student “literary contributions” and college news as well as serving as a vehicle for bringing news to alumni and the general public. The newspaper, which originally was for sale, varied in frequency over the years as did its title (The Targum, Rutgers Targum, Rutgers Daily Targum, and Daily Targum). The newspaper has continuously been published since 1869 with the exception of 19 months during the second world war, between February 1944 and October 1945. The Targum was published by the students of Rutgers College, and later Rutgers University—New Brunswick represented through the years as the Targum Association, Rutgers Targum Association, and Rutgers College Targum. As a student organization, the Targum operated under the oversight of the dean of students and student government but in October 1980, the Targum became an independent college paper.
Poincaré Complex Diagonals and the Bass trace Conjecture
Creators: name: Klein, John R.
name: Naef, Florian
Publisher: name: arXiv
Year: 2022
Subjects: subject: Algebraic Topology (math.AT)
subject: Geometric Topology (math.GT)
subject: K-Theory and Homology (math.KT)
subject: FOS: Mathematics
subject: Primary: 57P10, Secondary: 16E20, 13D03, 55P91

description: For a finitely dominated Poincaré duality space $M$, we show how the author's total obstruction to the existence of a Poincaré embedding of the diagonal map $M \to M \times M$ relates to the Reidemeister trace of the identity map of $M$.
 We also show that if the dimension of $M$ is even and at least four, and if $π_1(M)$ is a finite direct product of cyclic groups of order two, then the diagonal map admits a Poincaré embedding.
description: Final prepublication version. This paper is to appear in, "Manifolds and K-Theory: in honour of Andrew Ranicki of the journal Proceedings of the Royal Society of Edinburgh Section A: Mathematics."
Lo specchio rotto del Liebeskonzil: un caso di blasfemia nell’Impero guglielmino
Creators: name: Sabbatini, Carlo
Publisher: name: Stato, Chiese e pluralismo confessionale
Year: 2021

description: SOMMARIO: 1. Panizza, un suddito infedele - 2. Scalpori e processi - 3. La pietra dello scandalo - 4. Un “teologo [...] eretico pittore di immagini sacre” - 5. Una scelta [quasi] obbligata - 6. Una foresta di simboli performativi - 7. Ordine religioso e ordine politico: l’ecosistema del processo - 8. Un “martire” a processo - 9. Martedì 30 aprile 1895, ore 19: la condanna - 10. Panizza sulla censura - 11. Morale religiosa come morale sessuale - 12. Manicomio, prigione, fuga - 13. “Un uomo fuori dal mondo”: ontologia di un blasfemo - 14. Istituzioni che succhiano il sangue. The broken mirror of Liebeskonzil: a case of blasphemy in the Wilhelminian Empire ABSTRACT: In 1895, due to the publication of the play Liebeskonzil, the writer Oskar Panizza was sentenced to one year imprisonment for blasphemy. Starting with such exemplary conviction, the essay reconstructs some aspects of the writer's existential and creative path, treating his vitriolic satires of religion as an access key to the political and social situation during the Wilhelminian Empire, where press laws and targeted use of crimes such as lèse majesté, obscenity and profanity, highlight the tenacity of Government, right-wing parties and Catholic Centre Party in pursuing the common purpose of silencing the opponents of the status quo.
description: Stato, Chiese e pluralismo confessionale, 2021: 18 gennaio
Toward Interpretable Sleep Stage Classification Using Cross-Modal Transformers
Creators: name: Pradeepkumar, Jathurshan
name: Anandakumar, Mithunjha
name: Kugathasan, Vinith
name: Suntharalingham, Dhinesh
name: Kappel, Simon L.
name: De Silva, Anjula C.
name: Edussooriya, Chamira U. S.
Publisher: name: arXiv
Year: 2022
Subjects: subject: Machine Learning (cs.LG)
subject: Signal Processing (eess.SP)
subject: FOS: Computer and information sciences
subject: FOS: Electrical engineering, electronic engineering, information engineering

description: Accurate sleep stage classification is significant for sleep health assessment. In recent years, several machine-learning based sleep staging algorithms have been developed , and in particular, deep-learning based algorithms have achieved performance on par with human annotation. Despite improved performance, a limitation of most deep-learning based algorithms is their black-box behavior, which have limited their use in clinical settings. Here, we propose a cross-modal transformer, which is a transformer-based method for sleep stage classification. The proposed cross-modal transformer consists of a novel cross-modal transformer encoder architecture along with a multi-scale one-dimensional convolutional neural network for automatic representation learning. Our method outperforms the state-of-the-art methods and eliminates the black-box behavior of deep-learning models by utilizing the interpretability aspect of the attention modules. Furthermore, our method provides considerable reductions in the number of parameters and training time compared to the state-of-the-art methods. Our code is available at https://github.com/Jathurshan0330/Cross-Modal-Transformer. A demo of our work can be found at https://bit.ly/Cross_modal_transformer_demo.
description: 11 pages, 7 figures, 6 tables
First-principles studies for structural transitions in ordered phase of cubic approximant Cd6Ca
Creators: name: Nozawa, Kazuki
name: Ishii, Yasushi
Publisher: name: arXiv
Year: 2008
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Recently low-temperature structural transition has been reported for complex cubic compounds Cd6M (M=Ca, Yb, Y, rare earth) and it is believed that the transition is due to orientational ordering of an atomic shell in the icosahedral cluster in Cd6M. The first-principles electronic structure calculations and structural relaxations are carried out to investigate structures and orientational ordering of the innermost tetrahedral shell of the icosahedral cluster in Cd6Ca. The very short interatomic distances in the experimental average structures are relaxed and the innermost tetrahedral shell of an almost regular shape is obtained. Three types of orientation for the tetrahedral shell and eight different combinations of them for the clusters at a vertex and body-centre of a cubic cell are obtained. A possible model describing the orientational ordering at low temperatures or high pressures is discussed.
description: 17 pages, 7 figures
Cross-modal Spectrum Transformation Network For Acoustic Scene classification
Creators: name: Liu, Yang
name: Neophytou, Alexandros
name: Sengupta, Sunando
name: Sommerlade, Eric
Publisher: name: arXiv
Year: 2021
Subjects: subject: Sound (cs.SD)
subject: Audio and Speech Processing (eess.AS)
subject: FOS: Computer and information sciences
subject: FOS: Electrical engineering, electronic engineering, information engineering

description: Convolutional neural networks (CNNs) with log-mel spectrum features have shown promising results for acoustic scene classification tasks. However, the performance of these CNN based classifiers is still lacking as they do not generalise well for unknown environments. To address this issue, we introduce an acoustic spectrum transformation network where traditional log-mel spectrums are transformed into imagined visual features (IVF). The imagined visual features are learned by exploiting the relationship between audio and visual features present in video recordings. An auto-encoder is used to encode images as visual features and a transformation network learns how to generate imagined visual features from log-mel. Our model is trained on a large dataset of Youtube videos. We test our proposed method on the scene classification task of DCASE and ESC-50, where our method outperforms other spectrum features, especially for unseen environments.
Laicità e bilateralità a trent’anni dalla sentenza madre. I test dell’Islam italiano e dell’ateismo militante
Creators: name: Alicino, Francesco
Publisher: name: Stato, Chiese e pluralismo confessionale
Year: 2021

description: SOMMARIO: 1. Introduzione - 2. L’idioma della laicità - 3. Laicità e bilateralità - 4. La difficile convivenza con il favor religionis - 5. Gli Islam e l’ateismo - 6. Gli obblighi internazionali della laicità - 7. Conclusioni. Le potenzialità nascoste della laicità. Secularism and Bilateralism Thirty Years after the 1989 Landmark Constitutional Decision. The Italian Secularism tested by Islam and atheism ABSTRACT: In 1989 the Constitutional Court stated that secularism (laicità) is one of the supreme principles (principi supremi) of the Italian constitutional order. On the basis of articles 2, 3, 7, 8, 19 and 20 of the 1948 Constitution, the Court said that secularism does not affirm indifference of the State towards religions; rather, it sustains the protection of religious freedom in a context of cultural-confessional pluralism. With this essay the author examines the way the Italian supreme principle of secularism has developed in the last thirty years, especially in relation to the so-called bilateralism method (as stated in articles 7.2 and 8.3 of the Italian Constitution) and in the light of today’s pluralism, which is characterized by the presence of new collective organizations, such as those referring to Islam and atheism.
description: Stato, Chiese e pluralismo confessionale, 2021: 18 gennaio
Classification of BPS equations in higher dimensions
Creators: name: Loginov, E. K.
Publisher: name: arXiv
Year: 2008
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We systematically classify all possible Bogomol'nyi-Prasad-Sommerfield (BPS) equations in Euclidean dimension $d\leq8$. We discuss symmetries of BPS equations and their connection with the self-dual Yang-Mills equations. Also, we present a general method allowing to obtain the BPS equations in any dimension. In addition, we find all BPS equations in the Minkowski space of dimension $d\leq6$ and apply the obtained results to the supersymmetric Yang-Mills theories. In conclusion, we discuss the possibility of using the classification to construct soliton solutions of the low-energy effective theory of the heterotic string.
description: 31 pages, LaTeX
Black-box Hamiltonian simulation and unitary implementation
Creators: name: Berry, Dominic W.
name: Childs, Andrew M.
Publisher: name: arXiv
Year: 2009
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We present general methods for simulating black-box Hamiltonians using quantum walks. These techniques have two main applications: simulating sparse Hamiltonians and implementing black-box unitary operations. In particular, we give the best known simulation of sparse Hamiltonians with constant precision. Our method has complexity linear in both the sparseness D (the maximum number of nonzero elements in a column) and the evolution time t, whereas previous methods had complexity scaling as D^4 and were superlinear in t. We also consider the task of implementing an arbitrary unitary operation given a black-box description of its matrix elements. Whereas standard methods for performing an explicitly specified N x N unitary operation use O(N^2) elementary gates, we show that a black-box unitary can be performed with bounded error using O(N^{2/3} (log log N)^{4/3}) queries to its matrix elements. In fact, except for pathological cases, it appears that most unitaries can be performed with only O(sqrt{N}) queries, which is optimal.
description: 19 pages, 3 figures, minor corrections
Local entropy averages and projections of fractal measures
Creators: name: Hochman, Michael
name: Shmerkin, Pablo
Publisher: name: arXiv
Year: 2009
Subjects: subject: Dynamical Systems (math.DS)
subject: Classical Analysis and ODEs (math.CA)
subject: FOS: Mathematics
subject: 28A80, 28A78, 37C45, 37F35

description: We show that for families of measures on Euclidean space which satisfy an ergodic-theoretic form of "self-similarity" under the operation of re-scaling, the dimension of linear images of the measure behaves in a semi-continuous way. We apply this to prove the following conjecture of Furstenberg: Let m,n be integers which are not powers of the same integer, and let X,Y be closed subsets of the unit interval which are invariant, respectively, under times-m mod 1 and times-n mod 1. Then, for any non-zero t: dim(X+tY)=min{1,dim(X)+dim(Y)}. A similar result holds for invariant measures, and gives a simple proof of the Rudolph-Johnson theorem. Our methods also apply to many other classes of conformal fractals and measures. As another application, we extend and unify Results of Peres, Shmerkin and Nazarov, and of Moreira, concerning projections of products self-similar measures and Gibbs measures on regular Cantor sets. We show that under natural irreducibility assumptions on the maps in the IFS, the image measure has the maximal possible dimension under any linear projection other than the coordinate projections. We also present applications to Bernoulli convolutions and to the images of fractal measures under differentiable maps.
description: 55 pages. Version 2: Corrected an error in proof Thm. 4.3; some new references; various small corrections