cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
title: ÐÐ½Ð°Ð»Ð¸Ð· Ð¿Ð¾Ð²ÑÐµÐ¶Ð´Ð°ÐµÐ¼Ð¾ÑÑÐ¸ ÑÑÐ°Ð½ÑÑÐ¾ÑÐ¼Ð°ÑÐ¾ÑÐ¾Ð² Ð¿ÑÐ¸ Ð¿ÐµÑÐµÐ³ÑÑÐ·ÐºÐ°Ñ
title: Ð²ÑÐ¿ÑÑÐºÐ½Ð°Ñ ÐºÐ²Ð°Ð»Ð¸ÑÐ¸ÐºÐ°ÑÐ¸Ð¾Ð½Ð½Ð°Ñ ÑÐ°Ð±Ð¾ÑÐ° Ð¼Ð°Ð³Ð¸ÑÑÑÐ°
titleType: Subtitle
title: Damage analysis of transformers during overloads
Creators: name: ÐÐ¸ÑÑÐºÐ¾Ð²Ð°, ÐÐ»Ð¸Ð½Ð°
Publisher: name: Ð¡Ð°Ð½ÐºÑ-ÐÐµÑÐµÑÐ±ÑÑÐ³ÑÐºÐ¸Ð¹ Ð¿Ð¾Ð»Ð¸ÑÐµÑÐ½Ð¸ÑÐµÑÐºÐ¸Ð¹ ÑÐ½Ð¸Ð²ÐµÑÑÐ¸ÑÐµÑ ÐÐµÑÑÐ° ÐÐµÐ»Ð¸ÐºÐ¾Ð³Ð¾
Year: 2021
Subjects: Ð­Ð»ÐµÐºÑÑÐ¸ÑÐµÑÐºÐ¸Ðµ Ð¿Ð¾Ð´ÑÑÐ°Ð½ÑÐ¸Ð¸
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Ð½Ð°Ð¸Ð±Ð¾Ð»ÐµÐµ Ð½Ð°Ð³ÑÐµÑÐ°Ñ ÑÐ¾ÑÐºÐ°
Duval triangle
hottest point

description: Ð Ð´Ð°Ð½Ð½Ð¾Ð¹ Ð²ÑÐ¿ÑÑÐºÐ½Ð¾Ð¹ ÐºÐ²Ð°Ð»Ð¸ÑÐ¸ÐºÐ°ÑÐ¸Ð¾Ð½Ð½Ð¾Ð¹ ÑÐ°Ð±Ð¾ÑÐµ Ð±ÑÐ»Ð¾ ÑÐ°ÑÑÐ¼Ð¾ÑÑÐµÐ½Ð¾ Ð¿ÑÐ¾ÐµÐºÑÐ¸ÑÐ¾Ð²Ð°Ð½Ð¸Ðµ Ð¿Ð¾Ð´ÑÑÐ°Ð½ÑÐ¸Ð¸ 110/35/10ÐºÐ. Ð¡Ð¿ÑÐ¾ÐµÐºÑÐ¸ÑÐ¾Ð²Ð°Ð½Ð° ÑÐ»ÐµÐºÑÑÐ¸ÑÐµÑÐºÐ°Ñ ÑÐ°ÑÑÑ Ð¿Ð¾Ð´ÑÑÐ°Ð½ÑÐ¸Ð¸, Ð²ÑÐ±ÑÐ°Ð½Ð¾ Ð¾Ð±Ð¾ÑÑÐ´Ð¾Ð²Ð°Ð½Ð¸Ðµ, ÑÐ¾ÑÑÐ°Ð²Ð»ÐµÐ½Ð° Ð¿ÑÐ¸Ð½ÑÐ¸Ð¿Ð¸Ð°Ð»ÑÐ½Ð°Ñ ÑÐ»ÐµÐºÑÑÐ¸ÑÐµÑÐºÐ°Ñ ÑÑÐµÐ¼Ð°, ÐºÐ¾ÑÐ¾ÑÐ°Ñ Ð¿Ð¾Ð´ÑÐ²ÐµÑÐ¶Ð´ÐµÐ½Ð° ÑÐ¾Ð¾ÑÐ²ÐµÑÑÑÐ²ÑÑÑÐ¸Ð¼Ð¸ ÑÐ°ÑÑÐµÑÐ°Ð¼Ð¸. Ð ÑÐ¾Ð´Ðµ ÑÐ°Ð±Ð¾ÑÑ Ð±ÑÐ» Ð¿ÑÐ¾Ð°Ð½Ð°Ð»Ð¸Ð·Ð¸ÑÐ¾Ð²Ð°Ð½ ÐÐÐ¡Ð¢ 14209-97. ÐÑÐ» Ð¸Ð·ÑÑÐµÐ½ ÑÑÐ¾Ð¼Ð°ÑÐ¾Ð³ÑÐ°ÑÐ¸ÑÐµÑÐºÐ¸Ð¹ Ð°Ð½Ð°Ð»Ð¸Ð· ÑÑÐ°Ð½ÑÑÐ¾ÑÐ¼Ð°ÑÐ¾ÑÐ½Ð¾Ð³Ð¾ Ð¼Ð°ÑÐ»Ð°.
description: In this final qualifying work, it was considered design of a 110/35/10 kV substation. Electrical design part of the substation, selected equipment, compiled a basic electrical circuit, which is confirmed by appropriate calculations. In the course of the work, GOST 14209-97 was analyzed. Chromatographic analysis of transformer oil was studied.
Resonant Scanning Design and Control for Fast Spatial Sampling
Creators: name: Sun, Zhanghao
name: Quan, Ronald
name: Solgaard, Olav
Publisher: name: arXiv
Year: 2021
Subjects: subject: Image and Video Processing (eess.IV)
subject: Computer Vision and Pattern Recognition (cs.CV)
subject: Robotics (cs.RO)
subject: FOS: Electrical engineering, electronic engineering, information engineering
subject: FOS: Computer and information sciences

description: Two-dimensional, resonant scanners have been utilized in a large variety of imaging modules due to their compact form, low power consumption, large angular range, and high speed. However, resonant scanners have problems with non-optimal and inflexible scanning patterns and inherent phase uncertainty, which limit practical applications. Here we propose methods for optimized design and control of the scanning trajectory of two-dimensional resonant scanners under various physical constraints, including high frame-rate and limited actuation amplitude. First, we propose an analytical design rule for uniform spatial sampling. We demonstrate theoretically and experimentally that by including non-repeating scanning patterns, the proposed designs outperform previous designs in terms of scanning range and fill factor. Second, we show that we can create flexible scanning patterns that allow focusing on user-defined Regions-of-Interest (RoI) by modulation of the scanning parameters. The scanning parameters are found by an optimization algorithm. In simulations, we demonstrate the benefits of these designs with standard metrics and higher-level computer vision tasks (LiDAR odometry and 3D object detection). Finally, we experimentally implement and verify both unmodulated and modulated scanning modes using a two-dimensional, resonant MEMS scanner. Central to the implementations is high bandwidth monitoring of the phase of the angular scans in both dimensions. This task is carried out with a position-sensitive photodetector combined with high-bandwidth electronics, enabling fast spatial sampling at ~ 100Hz frame-rate.
description: 16 pages, 11 figures
La rabbia attraverso i racconti: riconoscere, affrontare e superare le emozioni provocate dal sentimento di rabbia attraverso la comprensione di racconti
Creators: name: Corrado, Patrizia
Publisher: name: Scuola Universitaria della Svizzera Italiana (SUPSI)
Year: 2016

description: Una tra le emozioni più difficili e problematiche da gestire è quella della rabbia. Il bambino fin dalla prima infanzia è confrontato con questa emozione non sempre facile da gestire. Uno dei compiti dell’adulto è quello di aiutare il bambino a riconoscere e a gestire le emozioni. Questo elaborato, rivolto ai docenti di scuola dell’infanzia, mira a favorire una migliore conoscenza e gestione dell’emozione della rabbia nel bambino. Il progetto è costituito da una serie di racconti che trattano questa particolare emozione. Attraverso la loro comprensione si punta ad una migliore conoscenza dell’emozione e alla scoperta di nuove tecniche di ritorno alla calma. Parte del progetto riguardava anche la valutazione della sua efficacia. Sono quindi state previste delle attività di discussione atte a mettere in luce i principali aspetti dei racconti trattati. Sono inoltre state svolte delle osservazioni mirate, registrate su di una specifica griglia, per rilevare il comportamento dei bambini in situazioni determinate dall’emozione della rabbia. I risultati hanno evidenziato che i bambini che trovavano più difficoltà nella gestione della propria rabbia hanno mostrato dei piccoli progressi, riuscendo a gestire meglio le proprie reazioni emotive in situazioni avverse. I progressi osservati in alcuni bambini avvalorano l’importanza di affrontare questo tema in sezione, con la possibilità di ampliarlo in un percorso sull’educazione alle emozioni. Relatrice: Jenny Marcionetti
Seismic strengthening and retrofit of damaged and deficient circular reinforced concrete bridge piers with ferrocement
Creators: name: Kennedy-Kuiper, Remy Cameron Sebastien
Publisher: name: University of British Columbia
Year: 2020

description: In Canada and abroad, a significant number of bridges that enable the operation of the transportation industry are in poor condition and require immediate attention. Many bridges are also approaching or have surpassed their anticipated design service life. As a result, deficient construction due to their age coupled with deterioration puts them at risk of collapsing. Moreover, many bridges around the world are located in high-risk seismic zones and were built before the implementation of seismic provisions, and therefore lack proper seismic detailing. Thus, there is a need to study and introduce an effective, readily available, and inexpensive method of bridge rehabilitation so that bridge components can be strengthened to avoid catastrophic failure. Ferrocement, which is a composite structural material made of cementitious mortar and steel wire mesh, has seen its emergence as a viable strengthening material. This thesis expands the knowledge and research field surrounding the seismic response of ferrocement-jacketed reinforced concrete (RC) bridge piers. In this study, preliminary experiments were first carried out by conducting mechanical tests on ferrocement materials to evaluate the performance of various material combinations. Then, the confinement effect of ferrocement was investigated using two 1/3-scale RC bridge piers, each strengthened with a ferrocement jacket made from three layers of 19-gauge mesh and Portland cement mortar. The first bridge pier – a seismically damaged conventional pier, and the second – an undamaged shear-deficient pier, were subjected to an axial load and a cyclic lateral load. The piers’ seismic responses were evaluated by analyzing their hysteretic behaviour during loading and comparing the findings to past researchers’ tests. Results showed that using ferrocement to strengthen a seismically damaged bridge pier can restore its flexural capacity, energy dissipation capacity, and ductility. When using ferrocement to strengthen a seismically deficient pier, results showed that the ductility and energy dissipation capacity can be enhanced, and the flexural and moment capacities can be increased, preventing total collapse. The findings of this research prove that ferrocement jacketing can effectively rehabilitate damaged and deficient bridge piers in earthquake scenarios. This research could assist with code implementation, and encourage efficient and inexpensive up-gradation of transportation infrastructure.
Local energy bounds and strong locality in chiral CFT
Creators: name: Carpi, Sebastiano
name: Tanimoto, Yoh
name: Weiner, Mihály
Publisher: name: arXiv
Year: 2021
Subjects: subject: Mathematical Physics (math-ph)
subject: Operator Algebras (math.OA)
subject: Quantum Algebra (math.QA)
subject: FOS: Physical sciences
subject: FOS: Mathematics
subject: 81T05, 81R10, 17B69

description: A family of quantum fields is said to be strongly local if it generates a local net of von Neumann algebras. There are few methods of showing directly strong locality of a quantum field. Among them, linear energy bounds are the most widely used, yet a chiral conformal field of conformal weight $d>2$ cannot admit linear energy bounds. In this paper we give a new direct method to prove strong locality in two-dimensional conformal field theory. We prove that if a chiral conformal field satisfies an energy bound of degree $d-1$, then it also satisfies a certain local version of the energy bound, and this in turn implies strong locality. A central role in our proof is played by diffeomorphism symmetry. As a concrete application, we show that the vertex operator algebra given by a unitary vacuum representation of the $\mathcal{W}_3$-algebra is strongly local. For central charge $c > 2$, this yields a new conformal net. We further prove that these nets do not satisfy strong additivity, and hence are not completely rational.
description: 27 pages, no figure. The constant C' in Proposition 3.3 replaced, main results unaffected
Convergence of clock processes in random environments and ageing in the p-spin SK model
Creators: name: Bovier, Anton
name: Gayrard, Véronique
Publisher: name: arXiv
Year: 2010
Subjects: subject: Probability (math.PR)
subject: Mathematical Physics (math-ph)
subject: FOS: Mathematics
subject: FOS: Physical sciences

description: We derive a general criterion for the convergence of clock processes in random dynamics in random environments that is applicable in cases when correlations are not negligible, extending recent results by Gayrard [(2010), (2011), forthcoming], based on general criterion for convergence of sums of dependent random variables due to Durrett and Resnick [Ann. Probab. 6 (1978) 829-846]. We demonstrate the power of this criterion by applying it to the case of random hopping time dynamics of the p-spin SK model. We prove that on a wide range of time scales, the clock process converges to a stable subordinator almost surely with respect to the environment. We also show that a time-time correlation function converges to the arcsine law for this subordinator, almost surely. This improves recent results of Ben Arous, Bovier and Cerny [Comm. Math. Phys. 282 (2008) 663-695] that obtained similar convergence results in law, with respect to the random environment.
description: Published in at http://dx.doi.org/10.1214/11-AOP705 the Annals of Probability (http://www.imstat.org/aop/) by the Institute of Mathematical Statistics (http://www.imstat.org)
Extensions to the Theory of Widely Linear Complex Kalman Filtering
Creators: name: Dang, Wenbing
name: Scharf, Louis L.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Systems and Control (eess.SY)
subject: Information Theory (cs.IT)
subject: Optimization and Control (math.OC)
subject: FOS: Electrical engineering, electronic engineering, information engineering
subject: FOS: Computer and information sciences
subject: FOS: Mathematics

description: For an improper complex signal x, its complementary covariance ExxT is not zero and thus it carries useful statistical information about x. Widely linear processing exploits Hermitian and complementary covariance to improve performance. In this paper we extend the existing theory of widely linear complex Kalman filters (WLCKF) and unscented WLCKFs [1]. We propose a WLCKF which can deal with more general dynamical models of complex-valued states and measurements than the WLCKFs in [1]. The proposed WLCKF has an equivalency with the corresponding dual channel real KF. Our analytical and numerical results show the performance improvement of a WLCKF over a complex Kalman filter (CKF) that does not exploit complementary covariance. We also develop an unscented WLCKF which uses modified complex sigma points. The modified complex sigma points preserve complete first and second moments of complex signals, while the sigma points in [1] only carry the mean and Hermitian covariance, but not complementary covariance of complex signals.
Application of abelian holonomy formalism to the elementary theory of numbers
Creators: name: Abe, Yasuhiro
Publisher: name: arXiv
Year: 2010
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Number Theory (math.NT)
subject: FOS: Physical sciences
subject: FOS: Mathematics

description: We consider an abelian holonomy operator in two-dimensional conformal field theory with zero-mode contributions. The analysis is made possible by use of a geometric-quantization scheme for abelian Chern-Simons theory on $S^1 \times S^1 \times {\bf R}$. We find that a purely zero-mode part of the holonomy operator can be expressed in terms of Riemann's zeta function. We also show that a generalization of linking numbers can be obtained in terms of the vacuum expectation values of the zero-mode holonomy operators. Inspired by mathematical analogies between linking numbers and Legendre symbols, we then apply these results to a space of ${\bf F}_p = {\bf Z}/ p {\bf Z}$ where $p$ is an odd prime number. This enables us to calculate "scattering amplitudes" of identical odd primes in the holonomy formalism. In this framework, the Riemann hypothesis can be interpreted by means of a physically obvious fact, i.e., there is no notion of "scattering" for a single-particle system. Abelian gauge theories described by the zero-mode holonomy operators will be useful for studies on quantum aspects of topology and number theory.
description: 50 pages; v2,3. minor corrections; v4. minor revisions, published version
CaCu2(SeO3)2Cl2: spin-1/2 Heisenberg chain compound with complex frustrated interchain couplings
Creators: name: Janson, Oleg
name: Tsirlin, Alexander A.
name: Rosner, Helge
name: Olenev, Andrei V.
name: Osipova, Elena S.
name: Berdonosov, Peter S.
name: Dolgikh, Valery A.
Publisher: name: arXiv
Year: 2010
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: We report the crystal structure, magnetization measurements, and band-structure calculations for the spin-1/2 quantum magnet CaCu2(SeO3)2Cl2. The magnetic behavior of this compound is well reproduced by a uniform spin-1/2 chain model with the nearest-neighbor exchange of about 133 K. Due to the peculiar crystal structure, spin chains run in the direction almost perpendicular to the structural chains. We find an exotic regime of frustrated interchain couplings owing to two inequivalent exchanges of 10 K each. Peculiar superexchange paths grant an opportunity to investigate bond-randomness effects under partial Cl-Br substitution.
description: Extended version: 9 pages, 7 figures, 4 tables
Così non mi sottovaluto! Laboratorio di valutazione per l’apprendimento
Creators: name: Del Fante, Sara
Publisher: name: Scuola Universitaria della Svizzera Italiana (SUPSI)
Year: 2017

description: Che la valutazione sia “un momento centrale nella vita scolastica che troppo spesso viene limitato alla sola dimensione certificativa, dissipandone tutte le potenzialità di sviluppo metacognitivo e incremento motivazionale legate al suo aspetto formativo“ (DECS, 2015) è una constatazione oramai condivisa che, in un’ottica di sviluppo, necessita di uno sforzo di concretizzazione attraverso la sperimentazione. Trovandomi direttamente confrontata con la responsabilità di poter promuovere lo sviluppo di competenze nei miei allievi, ho deciso di concentrare i miei sforzi nel metter in pratica strategie efficaci per situare allievi e docente al centro di una valutazione formativa funzionale al processo di insegnamento-apprendimento. La meticolosa raccolta e analisi delle produzioni degli allievi sotto forma di testi narrativi, autovalutazioni, prove di verifica, poster, ricerche, relazioni di laboratorio, foto e video, mi hanno permesso di mettere in pratica una regolazione formativa efficace con cui è stato possibile costruire apprendimenti attraverso lo sviluppo di competenze. Ciò è stato possibile attraverso la messa in pratica di un atteggiamento formativo basato sulle seguenti azioni: osservazione, interazione, raccolta di tracce significative, analisi e restituzione. Esse hanno alimentato la fiamma di una continua regolazione formativa attraverso la quale è stato possibile far girare la turbina dello sviluppo di competenze che ha reso possibile la conversione di gran parte dell’energia investita (da parte mia e degli allievi) in apprendimento (degli allievi e mio). Materia: scienze dell'educazione
title: The First Zodiac Sign and the Daimon
title: The Advent of an Astrological Tradition and Seven Elaborate Horoscopes
titleType: Subtitle
Creators: name: Winkler, Andreas
Publisher: name: Freie Universität Berlin
Year: 2022
Subjects: subject: Egyptian astrology
subject: Daimon
subject: ZODIAC publication
classificationCode: 932
subject: Geschichte Ägyptens bis 640

description: Known as the cradle of astrology in antiquity, Egypt has produced an astonishing amount of evidence for its practice. The multifaceted sources at our disposal show the widespread popularity of astrology during the Grae co-Roman period. The material includes monumental zodiac depictions, astrological manuals, and horoscopes of various levels of sophistication in both Greek and Demotic. While the majority of the published horoscopes in Egyptian are regarded as so-called simple horoscopes, the Greek examples are a more varied lot. Neverthe less, elaborate horoscopes were also compiled in the native language. Here seven horoscopes on ostraca written in demotic and hieratic are presented and discussed. The texts are among the oldest sources for natal astrology from ancient Egypt, recording nativities between the years 48 BC and AD 1. They are also the most elaborate horoscopes in Egyptian known to date. The positions of the planets in the zodiac signs are given in degrees of longitude, and these are correlated to the so-called system of terms. The astrologers compiling the horoscopes, furthermore, calculated the position of the lots, such as the Lot of the Daimon and the Lot of Fortune. In total, eight such points are mentioned. Other astrologically relevant phenomena that are mentioned include prenatal syzygies, which were established by correlating the lunar and civil calendars. The date of the nativity is con nected to a year in the 25-year lunar cycle seemingly following the system laid out in P.Carlsberg 9.
Deep Learning Method for Multisource Point-of-Interest Matching
Creators: name: pengpeng, li
Publisher: name: figshare
Year: 2021
Subjects: subject: 80107 Natural Language Processing
subject: FOS: Computer and information sciences

description: Multisource point-of-interest (POI) matching refers to the pairing of POIs that point to the same geographic entity in different data sources; this also constitutes the core issue in geospatial data fusion and update. Existing methods usually rely on common substrings of attributes to measure similarity and then make judgments based on specific matching rules. These similarity measurement methods cannot effectively capture the complex semantic information in the text, and manually defined rules have a great effect on the matching results. In this study, we developed a multisource POI matching method based on deep learning that transforms the POI pair matching problem into a binary classification problem. First, we used different Chinese word segmentation methods to segment the POI text attributes and used the segmentation results to train the Word2Vec model to generate the corresponding word vector representation. Then, we used the text convolutional neural network and multilayer perceptron to extract the features of the POI attributes and generated the corresponding feature vector representation. Finally, we used the enhanced sequential inference model to perform local inference and inference combinations on each attribute of the POI to realize the classification of POI pairs. We used the POI dataset containing Baidu Map, Tencent Map, and Gaode Map from Chengdu to train, verify, and test the model. Experimental results show that the matching precision, recall, and F1 score of the proposed method in the test set exceed 98%. Thus, it is significantly better than the existing matching methods based on single-attribute and multi-attribute weighted matching methods.
Experimental study of quantum uncertainty from lack of information
Creators: name: Zhao, Yuan-Yuan
name: Rozpędek, Filip
name: Hou, Zhibo
name: Wu, Kang-Da
name: Xiang, Guo-Yong
name: Li, Chuan-Feng
name: Guo, Guang-Can
Publisher: name: arXiv
Year: 2021
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Quantum uncertainty is a well-known property of quantum mechanics that states the impossibility of predicting measurement outcomes of multiple incompatible observables simultaneously. In contrast, the uncertainty in the classical domain comes from the lack of information about the exact state of the system. One may naturally ask, whether the quantum uncertainty is indeed a fully intrinsic property of the quantum theory, or whether similarly to the classical domain lack of knowledge about specific parts of the physical system might be the source of this uncertainty. This question has been addressed in the previous literature where the authors argue that in the entropic formulation of the uncertainty principle that can be illustrated using the, so-called, guessing games, indeed such lack of information has a significant contribution to the arising quantum uncertainty. Here we investigate this issue experimentally by implementing the corresponding two-dimensional and three-dimensional guessing games. Our results confirm that within the guessing-game framework, the quantum uncertainty to a large extent relies on the fact that quantum information determining the key properties of the game is stored in the degrees of freedom that remain inaccessible to the guessing party. Moreover, we offer an experimentally compact method to construct the high-dimensional Fourier gate which is a major building block for various tasks in quantum computation, quantum communication, and quantum metrology.
description: close to the version published in npj quantum information
Non-universality of halo profiles and implications for dark matter experiments
Creators: name: Reed, Darren S.
name: Koushiappas, Savvas M.
name: Gao, Liang
Publisher: name: arXiv
Year: 2010
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: We explore the cosmological halo-to-halo scatter of the distribution of mass within dark matter halos utilizing a well-resolved statistical sample of clusters from the cosmological Millennium simulation. We find that at any radius, the spherically-averaged dark matter density of a halo (corresponding to the "smooth-component") and its logarithmic slope are well-described by a Gaussian probability distribution. At small radii (within the scale radius), the density distribution is fully determined by the measured Gaussian distribution in halo concentrations. The variance in the radial distribution of mass in dark matter halos is important for the interpretation of direct and indirect dark matter detection efforts. The scatter in mass profiles imparts approximately a 25 percent cosmological uncertainty in the dark matter density at the Solar neighborhood and a factor of ~3 uncertainty in the expected Galactic dark matter annihilation flux. The aggregate effect of halo-to-halo profile scatter leads to a small (few percent) enhancement in dark matter annihilation background if the Gaussian concentration distribution holds for all halo masses versus a 10 percent enhancement under the assumption of a log-normal concentration distribution. The Gaussian nature of the cluster profile scatter implies that the technique of "stacking" halos to improve signal to noise should not suffer from bias.
description: replaced with accepted mnras version
Heuristic bounds on superconductivity and how to exceed them
Creators: name: Hofmann, Johannes S.
name: Chowdhury, Debanjan
name: Kivelson, Steven A.
name: Berg, Erez
Publisher: name: arXiv
Year: 2021
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: What limits the value of the superconducting transition temperature ($T_c$) is a question of great fundamental and practical importance. Various heuristic upper bounds on $T_c$ have been proposed, expressed as fractions of the Fermi temperature, $T_F$, the zero-temperature superfluid stiffness, $ρ_s(0)$, or a characteristic Debye frequency, $ω_0$. We show that while these bounds are physically motivated and are certainly useful in many relevant situations, none of them serve as a fundamental bound on $T_c$. To demonstrate this, we provide explicit models where $T_c/T_F$ (with an appropriately defined $T_F$), $T_c/ρ_s(0)$, and $T_c/ω_0$ are unbounded.
description: 6 pages, 3 figures + appendices; (v2) Includes additional discussion, references and a revised title
An explicit algorithm for normal forms in small overlap monoids
Creators: name: Mitchell, James D.
name: Tsalakou, Maria
Publisher: name: arXiv
Year: 2021
Subjects: subject: Formal Languages and Automata Theory (cs.FL)
subject: Data Structures and Algorithms (cs.DS)
subject: Rings and Algebras (math.RA)
subject: FOS: Computer and information sciences
subject: FOS: Mathematics
subject: 20M05, 08A50, 20F10

description: We describe a practical algorithm for computing normal forms for semigroups and monoids with finite presentations satisfying so-called small overlap conditions. Small overlap conditions are natural conditions on the relations in a presentation, which were introduced by J. H. Remmers and subsequently studied extensively by M. Kambites. Presentations satisfying these conditions are ubiquitous; Kambites showed that a randomly chosen finite presentation satisfies the $C(4)$ condition with probability tending to 1 as the sum of the lengths of relation words tends to infinity. Kambites also showed that several key problems for finitely presented semigroups and monoids are tractable in $C(4)$ monoids: the word problem is solvable in $O(\min\{|u|, |v|\})$ time in the size of the input words $u$ and $v$; the uniform word problem for $\langle A|R\rangle$ is solvable in $O(N ^ 2 \min\{|u|, |v|\})$ where $N$ is the sum of the lengths of the words in $R$; and a normal form for any given word $u$ can be found in $O(|u|)$ time. Although Kambites' algorithm for solving the word problem in $C(4)$ monoids is highly practical, it appears that the coefficients in the linear time algorithm for computing normal forms are too large in practice. In this paper, we present an algorithm for computing normal forms in $C(4)$ monoids that has time complexity $O(|u| ^ 2)$ for input word $u$, but where the coefficients are sufficiently small to allow for practical computation. Additionally, we show that the uniform word problem for small overlap monoids can be solved in $O(N \min\{|u|, |v|\})$ time.
description: 31 pages, 6 figures (some further minor corrections from the referee are resolved, to appear in Journal of Algebra)
Szegö kernel asymptotics and Morse inequalities on CR manifolds
Creators: name: Hsiao, Chin-Yu
name: Marinescu, George
Publisher: name: arXiv
Year: 2010
Subjects: subject: Complex Variables (math.CV)
subject: Differential Geometry (math.DG)
subject: Spectral Theory (math.SP)
subject: FOS: Mathematics
subject: 32A25, 32F10, 32V20, 32W10, 58J50

description: We consider an abstract compact orientable Cauchy-Riemann manifold endowed with a Cauchy-Riemann complex line bundle. We assume that the manifold satisfies condition Y(q) everywhere. In this paper we obtain a scaling upper-bound for the Szegö kernel on (0, q)-forms with values in the high tensor powers of the line bundle. This gives after integration weak Morse inequalities, analogues of the holomorphic Morse inequalities of Demailly. By a refined spectral analysis we obtain also strong Morse inequalities which we apply to the embedding of some convex-concave manifolds.
description: 40 pages, the constants in Theorems 1.1-1.8 have been modified by a multiplicative constant 1/2 ; v.2 is a final update
Manifold Topology Divergence: a Framework for Comparing Data Manifolds
Creators: name: Barannikov, Serguei
name: Trofimov, Ilya
name: Sotnikov, Grigorii
name: Trimbach, Ekaterina
name: Korotin, Alexander
name: Filippov, Alexander
name: Burnaev, Evgeny
Publisher: name: arXiv
Year: 2021
Subjects: subject: Machine Learning (cs.LG)
subject: Artificial Intelligence (cs.AI)
subject: Computer Vision and Pattern Recognition (cs.CV)
subject: Algebraic Topology (math.AT)
subject: Metric Geometry (math.MG)
subject: FOS: Computer and information sciences
subject: FOS: Mathematics
subject: 55N31, 68T07

description: We develop a framework for comparing data manifolds, aimed, in particular, towards the evaluation of deep generative models. We describe a novel tool, Cross-Barcode(P,Q), that, given a pair of distributions in a high-dimensional space, tracks multiscale topology spacial discrepancies between manifolds on which the distributions are concentrated. Based on the Cross-Barcode, we introduce the Manifold Topology Divergence score (MTop-Divergence) and apply it to assess the performance of deep generative models in various domains: images, 3D-shapes, time-series, and on different datasets: MNIST, Fashion MNIST, SVHN, CIFAR10, FFHQ, chest X-ray images, market stock data, ShapeNet. We demonstrate that the MTop-Divergence accurately detects various degrees of mode-dropping, intra-mode collapse, mode invention, and image disturbance. Our algorithm scales well (essentially linearly) with the increase of the dimension of the ambient high-dimensional space. It is one of the first TDA-based practical methodologies that can be applied universally to datasets of different sizes and dimensions, including the ones on which the most recent GANs in the visual domain are trained. The proposed method is domain agnostic and does not rely on pre-trained networks.
Additional file 1 of Lactobacillus rhamnosus GG modifies the metabolome of pathobionts in gnotobiotic mice
Creators: name: Kim, Jinhee
name: Balasubramanian, Iyshwarya
name: Bandyopadhyay, Sheila
name: Nadler, Ian
name: Singh, Rajbir
name: Harlan, Danielle
name: Bumber, Amanda
name: He, Yuling
name: Kerkhof, Lee J.
name: Gao, Nan
name: Su, Xiaoyang
name: Ferraris, Ronaldo P.
Publisher: name: figshare
Year: 2021
Subjects: subject: Biochemistry
subject: Medicine
subject: Microbiology
subject: FOS: Biological sciences
subject: Genetics
subject: Molecular Biology
subject: Physiology
subject: Biotechnology
subject: Chemical Sciences not elsewhere classified
subject: Ecology
subject: Immunology
subject: FOS: Clinical medicine
subject: Cancer
subject: Plant Biology

description: Additional file 1: Supplementary Table 1A. Nutrient composition of autoclavable rodent pellets used in experiments optimizing the metabolite extraction procedure. Supplementary Table 1B. Nutrient composition of the diet used in the LTS and PTS experiment. Supplementary Table 2. Primer sequences used in RT-qPCR of mouse genes. Supplementary Table 3A. VIP scores and regulation of fecal metabolites in LTS compared to PTS mice. Supplementary Table 3B. VIP scores and regulation of fecal metabolites in GF compared to PTS mice. Supplementary Table 3C. VIP scores and regulation of fecal metabolites in GF compared to LTS mice. Supplementary Table 3D. Highly significant VIP metabolites that are up or downregulated with PTS relative to GF, with LTS relative to GF, and LTS relative to PTS fall into four categories: (1) those that are upregulated in both PTS and LTS, (2) downregulated in both PTS and LTS, (3) upregulated in PTS or downregulated in LTS, and (4) upregulated in LTS. Supplementary Table 4. Accurate m/z and relative intensity values of peaks in the ms2 spectra of unidentified metabolites.
Fock space expansion of sigma meson in leading-Nc
Creators: name: Llanes-Estrada, Felipe J.
name: Pelaez, Jose Ramon
name: de Elvira, Jacobo Ruiz
Publisher: name: arXiv
Year: 2011
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We examine the leading-Nc behavior of the masses and transition matrix elements of some low-lying, few-particle configurations in QCD. A truncation of the Fock space produces an effective, symmetric Hamiltonian that we diagonalize. The lowest eigenvalue is identified as the sigma meson if the Hamiltonian is chosen to represent the scalar sector. As an application, the coefficients of the Nc powers are then fit to two-loop Unitarized SU(2) Chiral Perturbation Theory results for the sigma mass and width as a function of the number of colors, and we show that those results can be accommodated using the QCD Nc dependence previously derived for matrix elements, without the need for unnatural parameters or fine tunings. Finally, we show a very preliminary good quality fit, estimating the proportion of tetraquark/molecule-like (dominant), q-anti-q-like (subdominant) and exotic-like (marginal) configurations in the sigma.
description: 4 pages, 4 figures, Proceedings of QCD10, the 15th High-Energy Physics International Conference on Quantum Chromodynamics
Anisotropia da Suscetibilidade Magnética em granitos variscos portugueses: 20 anos de investigação
Creators: name: Sant'Ovaia, Helena
name: Claúdia Cruz
name: Gonçalves, Ana M.
name: Noronha, Fernando
Publisher: name: Zenodo
Year: 2020

description: No Centro de Geologia da Universidade do Porto, que integra atualmente o Instituto de Ciências da Terra (ICT), têm vindo a ser realizados, ao longo dos últimos 20 anos, estudos de Anisotropia da Suscetibilidade Magnética (ASM) em granitos variscos portugueses. Os dados apresentados sistematizam resultados de ASM obtidos em cerca de 750 pontos de amostragem. A compilação e tratamento dos dados mostra que a suscetibilidade magnética (Km) aumenta nos granitos quando a sua génese implicou um aumento da contribuição mantélica e/ou basicrustal nos magmas nomeadamente no período extensional reconhecido nos últimos estádios da orogenia Varisca implicando, por vezes, granitos tipo-magnetite. A ASM que se relaciona com o grau de deformação em granitos tipo-ilmenite, diminui à medida que os granitos são mais tardios relativamente à orogenia Varisca, consequência da diminuição da intensidade da deformação. A classificação baseada na relação Km versus anisotropia magnética para granitos tipo-ilmenite, permitiu verificar que Km ~ 70 µSI define a fronteira entre granitos de duas micas e granitos essencialmente biotíticos. O fabric magnético põe em evidência as anisotropias estruturais encontradas durante a evolução da orogenia varisca e materializa a rotação da compressão máxima, σ1, da fase D3 para a fase tardi- a pós-D3. Os granitos sintectónicos (sin-D3) apresentam um fabric paralelizável a zonas de cisalhamento Variscas ca. N 120º E; o fabric dos granitos tarditectónicos é paralelizável com desligamentos regionais ca. N 155º E; os granitos tardi- a pós-D3 evidenciam relações com estruturas NW-SE e finalmente, os granitos pós-D3 apresentam forte associação espacial com desligamentos regionais, com orientação dominante NNE-SSW.
Modeling the Multi-Wavelength Emission of Shell-Type Supernova Remnant RX J1713.7-3946
Creators: name: Yuan, Qiang
name: Liu, Siming
name: Fan, Zhonghui
name: Bi, Xiaojun
name: Fryer, Christopher L.
Publisher: name: arXiv
Year: 2010
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: Emission mechanisms of the shell-type supernova remnant (SNR) RX J1713.7-3946 are studied with multi-wavelength observational data from radio, X-ray, GeV $γ$-ray to TeV $γ$-ray band. A Markov Chain Monte Carlo method is employed to explore the high-dimensional model parameter space systematically. Three scenarios for the $γ$-ray emission are investigated: the leptonic, the hadronic and a hybrid one. Thermal emission from the background plasma is also included to constrain the gas density, assuming ionization equilibrium, and a 2$σ$ upper limit of about 0.03 cm$^{-3}$ is obtained as far as thermal energies account for a significant fraction of the dissipated kinetic energy of the SNR shock. Although systematic errors dominate the $χ^2$ of the spectral fit of all models, we find that 1) the leptonic model has the best constrained model parameters, whose values can be easily accommodated with a typical supernova, but gives relatively poor fit to the TeV $γ$-ray data; 2) The hybrid scenario has one more parameter than the leptonic one and improves the overall spectral fit significantly; 3) The hadronic one, which has three more parameters than the leptonic model, gives the best fit to the overall spectrum with relatively not-well-constrained model parameters and very hard spectra of accelerated particles. The uncertainties of the model parameters decrease significantly if the spectral indices of accelerated electrons and protons are the same. The hybrid and hadronic models also require an energy input into high-energy protons, which seems to be too high compared with typical values of a supernova explosion. Further investigations are required to reconcile these observations with SNR theories.
description: 20 pages, 6 figures and 2 tables. Fermi data are updated, discussion extended; accepted for publication in ApJ
Hyperbolic and trigonometric hypergeometric solutions to the star-star equation
Creators: name: Catak, Erdal
name: Gahramanov, Ilmar
name: Mullahasanoglu, Mustafa
Publisher: name: arXiv
Year: 2021
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Mathematical Physics (math-ph)
subject: Exactly Solvable and Integrable Systems (nlin.SI)
subject: FOS: Physical sciences

description: We construct the hyperbolic and trigonometric solutions to the star-star relation via the gauge/YBE correspondence by using the three-dimensional lens partition function and superconformal index for a certain N=2 supersymmetric gauge dual theories. This correspondence relates supersymmetric gauge theories to exactly solvable models of statistical mechanics. The equality of partition functions for the three-dimensional supersymmetric dual theories can be written as an integral identity for hyperbolic and basic hypergeometric functions.
description: 14 pages, v2: minor corrections and comments, v3: minor corrections
Spin Correlations in $e^{+}e^{-}$ Pair Creation by Two-Photons and Entanglement in QED
Creators: name: Yongram, N.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Quantum Physics (quant-ph)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: Spin correlations of $e^{+}e^{-}$ pair productions of two colliding photons are investigated and explicit expressions for their corresponding probabilities are derived and found to be \textit{energy} (speed) dependent, for initially \textit{linearly} and \textit{circularly polarized} photons, different from those obtained by simply combining the spins of the relevant particles, for initially \textit{polarized} photons. These expressions also depend on the angles of spin of $e^{+}$ (and/or of $e^{-}$), for initially {\it linearly polarized} photons, but not for {\it circularly polarized} photons, as a function of the energy. It is remarkable that these explicit results obtained from quantum field theory show a clear violation of Bell's inequality of Local Hidden Variables theories at all {\it energies} beyond that of the threshold one for particle production, in support of quantum field theory in the relativistic regime. We hope that our explicit expression will lead to experiments, of the type described in the bulk of this paper, which can monitor energy (and speed) in polarization correlation experiments.
description: 12 pages, 4 figures
Scaling Limit of Moderately Interacting Particle Systems with Singular Interaction and Environmental Noise
Creators: name: Guo, Shuchen
name: Luo, Dejun
Publisher: name: arXiv
Year: 2021
Subjects: subject: Probability (math.PR)
subject: FOS: Mathematics

description: We consider moderately interacting particle systems with singular interaction kernel and environmental noise. It is shown that the mollified empirical measures converge in strong norms to the unique (local) solutions of nonlinear Fokker-Planck equations. The approach works for the Biot-Savart and repulsive Poisson kernels.
description: 40 pages. Accepted by Annals of Applied Probability
Effective dissipation rate in a Liouvillian graph picture of high-temperature quantum hydrodynamics
Creators: name: White, Christopher David
Publisher: name: arXiv
Year: 2021
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: At high temperature, generic strongly interacting spin systems are expected to display hydrodynamics: local transport of conserved quantities, governed by classical partial differential equations like the diffusion equation. I argue that the emergence of this dissipative long-wavelength dynamics from the system's unitary microscopic dynamics is controlled by the structure of the \textit{Liouvillean graph} of the system's Hamiltonian, that is, the graph induced on Pauli strings by commutation with that Hamiltonian. The Liouvillean graph decomposes naturally into subgraphs of Pauli strings of constant diameter, and the coherent dynamics of these subgraphs determines the rate at which operator weight spreads to long operators. This argument provides a quantitative theory of the emergence of a dissipative effective dynamics from unitary microscopic dynamics; it also leads to an effective model with Hilbert space dimension linear in system size and exponential in the UV cutoff for diffusion.
description: Updated with changes in light of referee response, incl. discussion of chaos in pools of long operators. Close to published version
Neutrino Backgrounds in Future Liquid Noble Element Dark Matter Direct Detection Experiments
Creators: name: Gaspert, Andrea
name: Giampa, Pietro
name: Morrissey, David E.
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: Experiments that use liquid noble gasses as target materials, such as argon and xenon, play a significant role in direct detection searches for WIMP(-like) dark matter. As these experiments grow in size, they will soon encounter a new background to their dark matter discovery potential from neutrino scattering off nuclei and electrons in their targets. Therefore, a better understanding of this new source of background is crucial for future large-scale experiments such as ARGO and DARWIN. In this work, we study the impact of atmospheric neutrino flux uncertainties, electron recoil rejection efficiency, recoil energy sensitivity, and other related factors on the dark matter discovery reach. We also show that a significant improvement in sensitivity can potentially be obtained, at large exposures, by combining data from independent argon and xenon experiments.
description: 44 pages, 11 figures, added references and discussion and updated figures for clarity, matches published version
Influence Maximization in Social Networks: A Survey of Behaviour-Aware Methods
Creators: name: Zareie, Ahmad
name: Sakellariou, Rizos
Publisher: name: arXiv
Year: 2021
Subjects: subject: Social and Information Networks (cs.SI)
subject: FOS: Computer and information sciences

description: Social networks have become an increasingly common abstraction to capture the interactions of individual users in a number of everyday activities and applications. As a result, the analysis of such networks has attracted lots of attention in the literature. Among the topics of interest, a key problem relates to identifying so-called influential users for a number of applications, which need to spread messages. Several approaches have been proposed to estimate users' influence and identify sets of influential users in social networks. A common basis of these approaches is to consider links between users, that is, structural or topological properties of the network. To a lesser extent, some approaches take into account users' behaviours or attitudes. Although a number of surveys have reviewed approaches based on structural properties of social networks, there has been no comprehensive review of approaches that take into account users' behaviour. This paper attempts to cover this gap by reviewing and proposing a taxonomy of such behaviour-aware methods to identify influential users in social networks.
Ergodic properties of randomly coloured point sets
Creators: name: Müller, Peter
name: Richard, Christoph
Publisher: name: arXiv
Year: 2010
Subjects: subject: Dynamical Systems (math.DS)
subject: Mathematical Physics (math-ph)
subject: FOS: Mathematics
subject: FOS: Physical sciences
subject: 37B50, 37A30, 37A50

description: We provide a framework for studying randomly coloured point sets in a locally compact, second-countable space on which a metrisable unimodular group acts continuously and properly. We first construct and describe an appropriate dynamical system for uniformly discrete uncoloured point sets. For point sets of finite local complexity, we characterise ergodicity geometrically in terms of pattern frequencies. The general framework allows to incorporate a random colouring of the point sets. We derive an ergodic theorem for randomly coloured point sets with finite-range dependencies. Special attention is paid to the exclusion of exceptional instances for uniquely ergodic systems. The setup allows for a straightforward application to randomly coloured graphs.
description: This version is almost identical to the version published electronically on May 10, 2012 in the Canadian Journal of Mathematics
Is the solution to the BCS gap equation continuous in the temperature ?
Creators: name: Watanabe, Shuji
Publisher: name: arXiv
Year: 2010
Subjects: subject: Mathematical Physics (math-ph)
subject: Superconductivity (cond-mat.supr-con)
subject: Functional Analysis (math.FA)
subject: FOS: Physical sciences
subject: FOS: Mathematics
subject: 45G05, 47H10, 47N50, 82D55

description: One of long-standing problems in mathematical studies of superconductivity is to show that the solution to the BCS gap equation is continuous in the temperature. In this paper we address this problem. We regard the BCS gap equation as a nonlinear integral equation on a Banach space consisting of continuous functions of both $T$ and $x$. Here, $T (\geq 0)$ stands for the temperature and $x$ the kinetic energy of an electron minus the chemical potential. We show that the unique solution to the BCS gap equation obtained in our recent paper is continuous with respect to both $T$ and $x$ when $T$ is small enough. The proof is carried out based on the Banach fixed-point theorem.
description: Journal of Mathematical Analysis and Applications, in press. The new title is "Addendum to `The solution to the BCS gap equation and the second-order phase transition in superconductivity' ". arXiv admin note: substantial text overlap with arXiv:1006.0765