cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
The star formation histories of Hickson compact group galaxies
Creators: name: Plauchu-Frayn, I.
name: del Olmo, A.
name: Coziol, R.
name: Torres-Papaqui, J. P.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: ABRIDGED: We study the Star Formation History (SFH) of 210 galaxies members of 55 Hickson Compact Groups (HCG) and 309 galaxies from the Catalog of Isolated Galaxies (CIG). The SFH traces the variation of star formation over the lifetime of a galaxy, and yields consequently a snapshot picture of its formation. Comparing the SFHs in these extremes in galaxy density, allows us to determine the main effects of Compact Groups (CG) on the formation of galaxies. We fit our spectra using the spectral synthesis code STARLIGHT and obtain the stellar population contents and mean stellar ages of HCG and CIG galaxies in three different morphological classes: early-type galaxies (EtG), early-type spirals (EtS), and late-type spirals (LtS). We find that EtG and EtS galaxies in HCG show larger contents of old and intermediate stellar populations as well as an important deficit of the young stellar population, what clearly implies an older average stellar age in early galaxies in HCG. For LtS galaxies we find similar mean values for the stellar content and age in the two samples. However, we note that LtS can be split into two subclasses, namely old and young LtS. In HCG we find a higher fraction of young LtS than in the CIG sample, in addition, most of these galaxies belong to groups where most of the galaxies are also young and actively forming stars. The Specific Star Formation Rate (SSFR) of spiral galaxies in the two samples differ. EtS in HCG show lower values of the SSFR, while LtS peak at higher values when comparing with their counterparts in isolation. We have also measured shorter Star Formation Time Scale (SFTS) in HCG galaxies, indicating that they have less prolonged star formation activity than CIG galaxies.
description: 14 pages, 15 figures. Accepted for publication in A&A
Joint density of a stable process and its supremum: regularity and upper bounds
Creators: name: Cázares, Jorge González
name: Higa, Arturo Kohatsu
name: Mijatović, Aleksandar
Publisher: name: arXiv
Year: 2020
Subjects: subject: Probability (math.PR)
subject: FOS: Mathematics
subject: 60G52, 60G70 (Primary) 60H07 (Secondary)

description: This article uses a combination of three ideas from simulation to establish a nearly optimal polynomial upper bound for the joint density of the stable process and its associated supremum at a fixed time on the entire support of the joint law. The representation of the concave majorant of the stable process and the Chambers-Mallows-Stuck representation for stable laws are used to define an approximation of the random vector of interest. An interpolation technique using multilevel Monte Carlo is applied to accelerate the approximation, allowing us to establish the infinite differentiability of the joint density as well as nearly optimal polynomial upper bounds for the joint mixed derivatives of any order.
description: Restructured the paper and the introduction. 30 pages, 2 figures, YouTube video on: https://youtu.be/x0n3Up9CxCA
Rapid Size-Controlled Synthesis of Dextran-Coated, 64Cu-Doped Iron Oxide Nanoparticles
Creators: name: Wong, Ray M.
name: Gilbert, Dustin
name: Liu, Kai
name: Louie, Angelique Y.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Research into developing dual modality probes enabled for magnetic resonance imaging (MRI) and positron emission tomography (PET) has been on the rise recently due to the potential to combine the high resolution of MRI and the high sensitivity of PET. Current synthesis techniques for developing multimodal probes is largely hindered in part by prolonged reaction times during radioisotope incorporation - leading to a weakening of the radioactivity. Along with a time-efficient synthesis, the resulting products must fit within a critical size range (between 20-100nm) to increase blood retention time. In this work, we describe a novel, rapid, microwave-based synthesis technique to grow dextran-coated iron oxide nanoparticles doped with copper (DIO/Cu). Traditional methods for coprecipitation of dextran-coated iron oxide nanoparticles require refluxing for 2 hours and result in approximately 50 nm diameter particles. We demonstrate that microwave synthesis can produce 50 nm nanoparticles with 5 minutes of heating. We discuss the various parameters used in the microwave synthesis protocol to vary the size distribution of DIO/Cu, and demonstrate the successful incorporation of 64Cu into these particles with the aim of future use for dual-mode MR/PET imaging.
description: 17 pages, 7 figures, 2 tables
On Multiple Frequency Power Density Measurements
Creators: name: Alberti, Giovanni S.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Analysis of PDEs (math.AP)
subject: FOS: Mathematics
subject: 35R30, 35J57, 35B30, 35B38

description: We shall give a priori conditions on the illuminations $ϕ_i$ such that the solutions to the Helmholtz equation $-div(a \nabla u^i)-k q u^i=0$ in Ω, $u^i=ϕ_i$ on $\partialΩ$, and their gradients satisfy certain non-zero and linear independence properties inside the domain Ω, provided that a finite number of frequencies k are chosen in a fixed range. These conditions are independent of the coefficients, in contrast to the illuminations classically constructed by means of complex geometric optics solutions. This theory finds applications in several hybrid problems, where unknown parameters have to be imaged from internal power density measurements. As an example, we discuss the microwave imaging by ultrasound deformation technique, for which we prove new reconstruction formulae.
description: 26 pages, 4 figures
Importance of the spectral gap in estimating ground-state energies
Creators: name: Deshpande, Abhinav
name: Gorshkov, Alexey V.
name: Fefferman, Bill
Publisher: name: arXiv
Year: 2020
Subjects: subject: Quantum Physics (quant-ph)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Computational Complexity (cs.CC)
subject: FOS: Physical sciences
subject: FOS: Computer and information sciences

description: The field of quantum Hamiltonian complexity lies at the intersection of quantum many-body physics and computational complexity theory, with deep implications to both fields. The main object of study is the LocalHamiltonian problem, which is concerned with estimating the ground-state energy of a local Hamiltonian and is complete for the class QMA, a quantum generalization of the class NP. A major challenge in the field is to understand the complexity of the LocalHamiltonian problem in more physically natural parameter regimes. One crucial parameter in understanding the ground space of any Hamiltonian in many-body physics is the spectral gap, which is the difference between the smallest two eigenvalues. Despite its importance in quantum many-body physics, the role played by the spectral gap in the complexity of the LocalHamiltonian is less well-understood. In this work, we make progress on this question by considering the precise regime, in which one estimates the ground-state energy to within inverse exponential precision. Computing ground-state energies precisely is a task that is important for quantum chemistry and quantum many-body physics. In the setting of inverse-exponential precision, there is a surprising result that the complexity of LocalHamiltonian is magnified from QMA to PSPACE, the class of problems solvable in polynomial space. We clarify the reason behind this boost in complexity. Specifically, we show that the full complexity of the high precision case only comes about when the spectral gap is exponentially small. As a consequence of the proof techniques developed to show our results, we uncover important implications for the representability and circuit complexity of ground states of local Hamiltonians, the theory of uniqueness of quantum witnesses, and techniques for the amplification of quantum witnesses in the presence of postselection.
description: 32 pages, 4 figures. Comments welcome. v2: close to published version
Emergence of interlacements from the finite volume Bose soup
Creators: name: Vogel, Quirin
Publisher: name: arXiv
Year: 2020
Subjects: subject: Probability (math.PR)
subject: FOS: Mathematics
subject: 60K35 (Primary), 60F10, 82B41 (Secondary)

description: We show that, conditioned on the (empirical) particle density exceeding the critical value, the finite volume Bose loop soup converges to the superposition of the Bosonic loop soup (on the whole space) and the Poisson point process of random interlacements. The intensity of the latter is given by the excess density above the critical point. We consider both the free case and the mean field case.
description: 37 pages, fixed typos
Simulation of the drawdown and its duration in Lévy models via stick-breaking Gaussian approximation
Creators: name: Cázares, Jorge González
name: Mijatović, Aleksandar
Publisher: name: arXiv
Year: 2020
Subjects: subject: Probability (math.PR)
subject: Mathematical Finance (q-fin.MF)
subject: FOS: Mathematics
subject: FOS: Economics and business
subject: 60G51, 60G70, 65C05 (Primary) 91G60 (Secondary)

description: We develop a computational method for expected functionals of the drawdown and its duration in exponential Lévy models. It is based on a novel simulation algorithm for the joint law of the state, supremum and time the supremum is attained of the Gaussian approximation of a general Lévy process. We bound the bias for various locally Lipschitz and discontinuous payoffs arising in applications and analyse the computational complexities of the corresponding Monte Carlo and multilevel Monte Carlo estimators. Monte Carlo methods for Lévy processes (using Gaussian approximation) have been analysed for Lipschitz payoffs, in which case the computational complexity of our algorithm is up to two orders of magnitude smaller when the jump activity is high. At the core of our approach are bounds on certain Wasserstein distances, obtained via the novel SBG coupling between a Lévy process and its Gaussian approximation. Numerical performance, based on the implementation in the dedicated GitHub repository, exhibits a good agreement with our theoretical bounds.
description: 45 pages, 6 figures, 4 tables, short video on https://youtu.be/EL0v2QUb5tQ
Cooperative non-equilibrium phase transition in a dilute Rydberg ensemble
Creators: name: Carr, Christopher
name: Ritter, Ralf
name: Wade, Christopher
name: Adams, Charles S
name: Weatherill, Kevin J
Publisher: name: arXiv
Year: 2013
Subjects: subject: Atomic Physics (physics.atom-ph)
subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: We demonstrate a non-equilibrium phase transition in a dilute thermal atomic gas. The phase transition, between states of low and high Rydberg occupancy, is induced by resonant dipole-dipole interactions between Rydberg atoms. The gas can be considered as dilute as the atoms are separated by distances much greater than the wavelength of the optical transitions used to excite them. In the frequency domain we observe a mean-field shift of the Rydberg state which results in intrinsic optical bistability above a critical Rydberg number density. In the time domain we observe critical slowing down where the recovery time to system perturbations diverges with critical exponent $τ=0.53 \pm 0.10$. The atomic emission spectrum of the phase with high Rydberg occupancy provides evidence for a superradiant cascade.
Performance Indicators Contributing To Success At The Group And Play-Off Stages Of The 2019 Rugby World Cup
Creators: name: Bunker, Rory
name: Spencer, Kirsten
Publisher: name: arXiv
Year: 2020
Subjects: subject: Applications (stat.AP)
subject: Machine Learning (cs.LG)
subject: FOS: Computer and information sciences

description: Performance indicators that contributed to success at the group stage and play-off stages of the 2019 Rugby World Cup were analysed using publicly available data obtained from the official tournament website using both a non-parametric statistical technique, Wilcoxon's signed rank test, and a decision rules technique from machine learning called RIPPER. Our statistical results found that ball carry effectiveness (percentage of ball carries that penetrated the opposition gain-line) and total metres gained (kick metres plus carry metres) were found to contribute to success at both stages of the tournament and that indicators that contributed to success during the group stages (dominating possession, making more ball carries, making more passes, winning more rucks, and making less tackles) did not contribute to success at the play-off stage. Our results using RIPPER found that low ball carries and a low lineout success percentage jointly contributed to losing at the group stage, while winning a low number of rucks and carrying over the gain-line a sufficient number of times contributed to winning at the play-off stage of the tournament. The results emphasise the need for teams to adapt their playing strategies from the group stage to the play-off stage at tournament in order to be successful.
Magnetic Mn5Ge3 nanocrystals embedded in crystalline Ge: a magnet/semiconductor hybrid synthesized by ion implantation
Creators: name: Zhou, Shengqiang
name: Zhang, Wenxu
name: Shalimov, A.
name: Wang, Yutian
name: Huang, Zhisuo
name: Buerger, D.
name: Mücklich, A.
name: Zhang, Wanli
name: Schmidt, H.
name: Helm, M.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: The integration of ferromagnetic Mn5Ge3 with the Ge matrix is promising for spin injection in a silicon-compatible geometry. In this paper, we report the preparation of magnetic Mn5Ge3 nanocrystals embedded inside the Ge matrix by Mn ions implantation at elevated temperature. By X-ray diffraction and transmission electron microscopy, we observe crystalline Mn5Ge3 with variable size depending on the Mn ion fluence. The electronic structure of Mn in Mn5Ge3 nanocrystals is 3d6 configuration, the same as in bulk Mn5Ge3. A large positive magnetoresistance has been observed at low temperatures. It can be explained by the conductivity inhomogeneity in the magnetic/semiconductor hybrid system.
description: 16 pages, 5 figures
Rotating Black Holes in Three-Dimensional Horava Gravity Revisited
Creators: name: Park, Mu-In
Publisher: name: arXiv
Year: 2020
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: I revisit rotating black hole solutions in three-dimensional Horava gravity with z = 2 as a simpler set-up of the renormalizable quantum gravity `a la Lifshitz and DeWitt. The solutions have a curvature singularity at the origin for a non-vanishing rotation parameter J, unlike the black holes in three-dimensional Einstein gravity. For anti-de Sitter space, there are black hole event horizons as usual and the singularity is not naked, in agreement with the cosmic censorship. On the other hand, for flat or de Sitter space, the earlier solution has also a cosmic-censorship problem because there are no conventional black hole horizons as in Einstein gravity, other than the usual cosmological horizon for the latter case, so that the singularity could be naked in Horava gravity. However, with the help of recent corrections, I show that the solutions have a peculiar black hole horizon at the origin so that the singularity is not naked even without the conventional black hole horizons in flat or de Sitter case, due to the Lorentz-violating higher-derivative terms. On the other hand, I note also that a new ``cosmological" horizon exists even for the flat case, contrary to the usual wisdom, due to combined effects of the higher derivatives and the angular-momentum barrier. I study an unified treatment of their unusual black hole thermodynamics for the flat and de Sitter spaces, as well as the anti-de Sitter space, which might be due to lack of the absolute horizons in the Lorentz-violating gravity.
description: Changed title, Added comments, 16 pages, 7 figures
Argenis y Poliarco
Creators: name: Demattè, Claudia
Publisher: name: Zenodo
Year: 2021
Subjects: Calderón
Argenis y Poliarco
Métrica dramática
Segmentación dramática
Bibliografía

description: Calderón Digital: base de datos, argumentos y motivos del teatro de Calderón (dir. Fausta Antonucci). Ficha dedicada a Argenis y Poliarco, con datos bibliográficos primarios y secundarios, fecha probable de composición, cómputo de las formas métricas, análisis de las coordenadas espacio-temporales, adscripción genérica y sinopsis argumental detallada, con indicación de los principales motivos (diegéticos y simbólicos) y propuesta de segmentación articulada según los cambios de forma métrica, de espacio y tiempo dramáticos.
Logiciel CorText Manager - Extraction d'information et analyse socio-sémantique pour les sciences humaines et sociales
Creators: name: Villard, Lionel
Publisher: name: Zenodo
Year: 2023
Subjects: Fouille de données
Text and Data Mining
TDM
Cortext
Analyse statistique
Visualisation des données

description: CorTexT Manager est une application web construite par des chercheurs et par des ingénieurs à destination de chercheurs en sciences humaines et sociales, au plus près des questions portées par les chercheurs qui nous entourent et par notre communauté d’utilisateurs. Cette application web peut produire un grand nombre d’analyses différentes qui ont trait aux champs méthodologiques du traitement automatique de la langue, de l’analyse des réseaux sociaux, de la statistique, et plus récemment autour de la dimension géographique qui se cache dans ces données. Un des points forts de Cortext Manager est de pouvoir traiter plusieurs dimensions d’analyse en les combinant dans le même espace. Cet aspect hétérogène permet par exemple d’associer le temps avec la dimension sociale, de l’analyse de texte avec la dimension sociale ou géographique. Cela permet d’appréhender l’émergence de domaines de recherche et d’innovation, d’étudier des controverses et "hot topics", d’effectuer des cartographies socio-sémantiques des productions de la recherche (publications, brevets, projets), ainsi que d’analyser des contenus issus du web et des média-sociaux. Cet atelier se propose de sensibiliser l’audience à certaines de ces méthodes tout en découvrant l’organisation et l’évolution de la production scientifique autour de la chloroquine et de l’hydroxychloroquine entre 2014 et 2020.
description: Cette présentation a été réalisée lors du webinaire du mercredi 21 juin 2023, organisé par le GTSO Données de Couperin. L'enregistrement est disponible ici : https://youtu.be/siMM8Uhz-ms
Inhalt
Creators: name: Redaktion, Die
Publisher: name: Germania : Anzeiger der Römisch-Germanischen Kommission des Deutschen Archäologischen Instituts
Year: 2018

description: Germania : Anzeiger der Römisch-Germanischen Kommission des Deutschen Archäologischen Instituts, Bd. 28, Nr. 1/2 (1944-1950)
S3CNet: A Sparse Semantic Scene Completion Network for LiDAR Point Clouds
Creators: name: Cheng, Ran
name: Agia, Christopher
name: Ren, Yuan
name: Li, Xinhai
name: Bingbing, Liu
Publisher: name: arXiv
Year: 2020
Subjects: subject: Computer Vision and Pattern Recognition (cs.CV)
subject: Artificial Intelligence (cs.AI)
subject: Machine Learning (cs.LG)
subject: Robotics (cs.RO)
subject: FOS: Computer and information sciences

description: With the increasing reliance of self-driving and similar robotic systems on robust 3D vision, the processing of LiDAR scans with deep convolutional neural networks has become a trend in academia and industry alike. Prior attempts on the challenging Semantic Scene Completion task - which entails the inference of dense 3D structure and associated semantic labels from "sparse" representations - have been, to a degree, successful in small indoor scenes when provided with dense point clouds or dense depth maps often fused with semantic segmentation maps from RGB images. However, the performance of these systems drop drastically when applied to large outdoor scenes characterized by dynamic and exponentially sparser conditions. Likewise, processing of the entire sparse volume becomes infeasible due to memory limitations and workarounds introduce computational inefficiency as practitioners are forced to divide the overall volume into multiple equal segments and infer on each individually, rendering real-time performance impossible. In this work, we formulate a method that subsumes the sparsity of large-scale environments and present S3CNet, a sparse convolution based neural network that predicts the semantically completed scene from a single, unified LiDAR point cloud. We show that our proposed method outperforms all counterparts on the 3D task, achieving state-of-the art results on the SemanticKITTI benchmark. Furthermore, we propose a 2D variant of S3CNet with a multi-view fusion strategy to complement our 3D network, providing robustness to occlusions and extreme sparsity in distant regions. We conduct experiments for the 2D semantic scene completion task and compare the results of our sparse 2D network against several leading LiDAR segmentation models adapted for bird's eye view segmentation on two open-source datasets.
description: 14 pages
Additional file 1 of Global prevalence of Rett syndrome: systematic review and meta-analysis
Creators: name: Petriti, Uarda
name: Dudman, Daniel C.
name: Scosyrev, Emil
name: Lopez-Leon, Sandra
Publisher: name: figshare
Year: 2023
Subjects: subject: Medicine
subject: Genetics
subject: FOS: Biological sciences
subject: Biotechnology
subject: 19999 Mathematical Sciences not elsewhere classified
subject: FOS: Mathematics
subject: Science Policy
subject: 60506 Virology
subject: Computational Biology

description: Additional file 1: Supplement 1. Database search strategies.
My Software has a Vulnerability, should I worry?
Creators: name: Allodi, Luca
name: Massacci, Fabio
Publisher: name: arXiv
Year: 2013
Subjects: subject: Cryptography and Security (cs.CR)
subject: FOS: Computer and information sciences

description: (U.S) Rule-based policies to mitigate software risk suggest to use the CVSS score to measure the individual vulnerability risk and act accordingly: an HIGH CVSS score according to the NVD (National (U.S.) Vulnerability Database) is therefore translated into a "Yes". A key issue is whether such rule is economically sensible, in particular if reported vulnerabilities have been actually exploited in the wild, and whether the risk score do actually match the risk of actual exploitation. We compare the NVD dataset with two additional datasets, the EDB for the white market of vulnerabilities (such as those present in Metasploit), and the EKITS for the exploits traded in the black market. We benchmark them against Symantec's threat explorer dataset (SYM) of actual exploit in the wild. We analyze the whole spectrum of CVSS submetrics and use these characteristics to perform a case-controlled analysis of CVSS scores (similar to those used to link lung cancer and smoking) to test its reliability as a risk factor for actual exploitation. We conclude that (a) fixing just because a high CVSS score in NVD only yields negligible risk reduction, (b) the additional existence of proof of concepts exploits (e.g. in EDB) may yield some additional but not large risk reduction, (c) fixing in response to presence in black markets yields the equivalent risk reduction of wearing safety belt in cars (you might also die but still..). On the negative side, our study shows that as industry we miss a metric with high specificity (ruling out vulns for which we shouldn't worry). In order to address the feedback from BlackHat 2013's audience, the final revision (V3) provides additional data in Appendix A detailing how the control variables in the study affect the results.
description: 12 pages, 4 figures
Zur Anthropologie des Endneolithikums und der frühen Bronzezeit im untermainisch-mittelrheinischen Gebiet
Creators: name: Gerhardt, Kurt
Publisher: name: Germania : Anzeiger der Römisch-Germanischen Kommission des Deutschen Archäologischen Instituts
Year: 2018

description: -
description: Germania : Anzeiger der Römisch-Germanischen Kommission des Deutschen Archäologischen Instituts, Bd. 29, Nr. 1/2 (1951)
Ein römischer Gesichtshelm von Strass-Moos, Kr. Neuburg a. D.
Creators: name: Paret, Oscar
Publisher: name: Germania : Anzeiger der Römisch-Germanischen Kommission des Deutschen Archäologischen Instituts
Year: 2018

description: -
description: Germania : Anzeiger der Römisch-Germanischen Kommission des Deutschen Archäologischen Instituts, Bd. 29, Nr. 1/2 (1951)
Monte Carlo algorithm for the extrema of tempered stable processes
Creators: name: Cázares, Jorge Ignacio González
name: Mijatović, Aleksandar
Publisher: name: arXiv
Year: 2021
Subjects: subject: Mathematical Finance (q-fin.MF)
subject: Probability (math.PR)
subject: Methodology (stat.ME)
subject: FOS: Economics and business
subject: FOS: Mathematics
subject: FOS: Computer and information sciences
subject: 60G51, 65C05

description: We develop a novel Monte Carlo algorithm for the vector consisting of the supremum, the time at which the supremum is attained and the position at a given (constant) time of an exponentially tempered Lévy process. The algorithm, based on the increments of the process without tempering, converges geometrically fast (as a function of the computational cost) for discontinuous and locally Lipschitz functions of the vector. We prove that the corresponding multilevel Monte Carlo estimator has optimal computational complexity (i.e. of order $\varepsilon^{-2}$ if the mean squared error is at most $\varepsilon^2$) and provide its central limit theorem (CLT). Using the CLT we construct confidence intervals for barrier option prices and various risk measures based on drawdown under the tempered stable (CGMY) model calibrated/estimated on real-world data. We provide non-asymptotic and asymptotic comparisons of our algorithm with existing approximations, leading to rule-of-thumb guidelines for users to the best method for a given set of parameters. We illustrate the performance of the algorithm with numerical examples.
description: 31 pages, 10 figures, video available on https://youtu.be/FJG6A3zk2lI
Fundchronik I.
Creators: name: Redaktion, Die
Publisher: name: Germania : Anzeiger der Römisch-Germanischen Kommission des Deutschen Archäologischen Instituts
Year: 2018

description: -
description: Germania : Anzeiger der Römisch-Germanischen Kommission des Deutschen Archäologischen Instituts, Bd. 29, Nr. 1/2 (1951)
Unsupervised Domain Adaptation with Progressive Adaptation of Subspaces
Creators: name: Li, Weikai
name: Chen, Songcan
Publisher: name: arXiv
Year: 2020
Subjects: subject: Machine Learning (cs.LG)
subject: Computer Vision and Pattern Recognition (cs.CV)
subject: Machine Learning (stat.ML)
subject: FOS: Computer and information sciences
subject: I.2.6
subject: 68T10

description: Unsupervised Domain Adaptation (UDA) aims to classify unlabeled target domain by transferring knowledge from labeled source domain with domain shift. Most of the existing UDA methods try to mitigate the adverse impact induced by the shift via reducing domain discrepancy. However, such approaches easily suffer a notorious mode collapse issue due to the lack of labels in target domain. Naturally, one of the effective ways to mitigate this issue is to reliably estimate the pseudo labels for target domain, which itself is hard. To overcome this, we propose a novel UDA method named Progressive Adaptation of Subspaces approach (PAS) in which we utilize such an intuition that appears much reasonable to gradually obtain reliable pseudo labels. Speci fically, we progressively and steadily refine the shared subspaces as bridge of knowledge transfer by adaptively anchoring/selecting and leveraging those target samples with reliable pseudo labels. Subsequently, the refined subspaces can in turn provide more reliable pseudo-labels of the target domain, making the mode collapse highly mitigated. Our thorough evaluation demonstrates that PAS is not only effective for common UDA, but also outperforms the state-of-the arts for more challenging Partial Domain Adaptation (PDA) situation, where the source label set subsumes the target one.
El mágico prodigioso
Creators: name: Giuliani, Luigi
Publisher: name: Zenodo
Year: 2021
Subjects: Calderón
El mágico prodigioso
Métrica dramática
Segmentación dramática
Bibliografía

description: Calderón Digital: base de datos, argumentos y motivos del teatro de Calderón (dir. Fausta Antonucci). Ficha dedicada a El mágico prodigioso, con datos bibliográficos primarios y secundarios, fecha probable de composición, cómputo de las formas métricas, análisis de las coordenadas espacio-temporales, adscripción genérica y sinopsis argumental detallada, con indicación de los principales motivos (diegéticos y simbólicos) y propuesta de segmentación articulada según los cambios de forma métrica, de espacio y tiempo dramáticos.
Die Schlosskirche zum Hl. Kreuz in Rastatt. Wiedereröffnung eines „Raumwunders“ der Gegenreformation
Creators: name: Wilhelm, Johannes
Publisher: name: Denkmalpflege in Baden-Württemberg – Nachrichtenblatt der Landesdenkmalpflege
Year: 2018

description: -
description: Denkmalpflege in Baden-Württemberg – Nachrichtenblatt der Landesdenkmalpflege, Bd. 47, Nr. 1 (2018)
A Survey on Negative Transfer
Creators: name: Zhang, Wen
name: Deng, Lingfei
name: Zhang, Lei
name: Wu, Dongrui
Publisher: name: arXiv
Year: 2020
Subjects: subject: Machine Learning (cs.LG)
subject: Computer Vision and Pattern Recognition (cs.CV)
subject: Machine Learning (stat.ML)
subject: FOS: Computer and information sciences

description: Transfer learning (TL) utilizes data or knowledge from one or more source domains to facilitate the learning in a target domain. It is particularly useful when the target domain has very few or no labeled data, due to annotation expense, privacy concerns, etc. Unfortunately, the effectiveness of TL is not always guaranteed. Negative transfer (NT), i.e., leveraging source domain data/knowledge undesirably reduces the learning performance in the target domain, has been a long-standing and challenging problem in TL. Various approaches have been proposed in the literature to handle it. However, there does not exist a systematic survey on the formulation of NT, the factors leading to NT, and the algorithms that mitigate NT. This paper fills this gap, by first introducing the definition of NT and its factors, then reviewing about fifty representative approaches for overcoming NT, according to four categories: secure transfer, domain similarity estimation, distant transfer, and NT mitigation. NT in related fields, e.g., multi-task learning, lifelong learning, and adversarial attacks, are also discussed.
A generalisation of Schenkman's theorem
Creators: name: Aivazidis, Stefanos
name: Safonova, Ina N.
name: Skiba, Alexander N.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Group Theory (math.GR)
subject: FOS: Mathematics
subject: 20D10, 20D15, 20D20

description: Let $G$ be a finite group and let $\mathfrak{F}$ be a hereditary saturated formation. We denote by $\mathbf{Z}_{\mathfrak{F}}(G)$ the product of all normal subgroups $N$ of $G$ such that every chief factor $H/K$ of $G$ below $N$ is $\mathfrak{F}$-central in $G$, that is, \[ (H/K) \rtimes (G/\mathbf{C}_{G}(H/K)) \in \mathfrak{F}. \]A subgroup $A \leq G$ is said to be $\mathfrak{F}$-subnormal in the sense of Kegel, or $K$-$\mathfrak{F}$-subnormal in $G$, if there is a subgroup chain \[ A = A_0 \leq A_1 \leq \ldots \leq A_n = G \] such that either $A_{i-1} \trianglelefteq A_{i}$ or $A_i / (A_{i-1})_{A_i} \in \mathfrak{F}$ for all $i = 1, \ldots , n$. In this paper, we prove the following generalisation of Schenkman's Theorem on the centraliser of the nilpotent residual of a subnormal subgroup: Let $\mathfrak{F}$ be a hereditary saturated formation and let $S$ be a $K$-$\mathfrak{F}$-subnormal subgroup of $G$. If $\mathbf{Z}_{\mathfrak{F}}(E) = 1$ for every subgroup $E$ of $G$ such that $S \leq E$ then $\mathbf{C}_{G}(D) \leq D$, where $D = S^{\mathfrak{F}}$ is the $\mathfrak{F}$-residual of $S$.
description: 9 pages
Maßgeschneidert von der Stange. Typen-Tankstellen der Nachkriegszeit
Creators: name: Huber, Peter
Publisher: name: Denkmalpflege in Baden-Württemberg – Nachrichtenblatt der Landesdenkmalpflege
Year: 2018

description: -
description: Denkmalpflege in Baden-Württemberg – Nachrichtenblatt der Landesdenkmalpflege, Bd. 47, Nr. 1 (2018)
Near- and far-field expansions for stationary solutions of Poisson--Nernst--Planck equations
Creators: name: Lyu, Jhih-Hong
name: Lee, Chiun-Chang
name: Lin, Tai-Chia
Publisher: name: arXiv
Year: 2021
Subjects: subject: Analysis of PDEs (math.AP)
subject: Mathematical Physics (math-ph)
subject: FOS: Mathematics
subject: FOS: Physical sciences
subject: 35M33, 35B25, 35Q92, 35R09, 78A25

description: This work is concerned with the stationary Poisson--Nernst--Planck equation with a large parameter which describes a huge number of ions occupying an electrolytic region. Firstly, we focus on the model with a single specie of positive charges in one-dimensional bounded domains due to the assumption that these ions are transported in the same direction along a tubular-like mircodomain. We show that the solution asymptotically blows up in a thin region attached to the boundary, and establish the refined "near-field" and "far-field" expansions for the solutions with respect to the parameter. Moreover, we obtain the boundary concentration phenomenon of the net charge density, which mathematically confirms the physical description that the non-neutral phenomenon occurs near the charged surface. In addition, we revisit a nonlocal Poisson--Boltzmann model for monovalent binary ions and establish a novel comparison for these two models.
Entropy for practical stabilization
Creators: name: Colonius, Fritz
name: Hamzi, Boumediene
Publisher: name: arXiv
Year: 2020
Subjects: subject: Optimization and Control (math.OC)
subject: Dynamical Systems (math.DS)
subject: FOS: Mathematics
subject: 93D15, 37B40, 94A17

description: For deterministic continuous time nonlinear control systems, epsilon-practical stabilization entropy and practical stabilization entropy are introduced. Here the rate of attraction is specified by a KL-function. Upper and lower bounds for the diverse entropies are proved, with special attention to exponential KL-functions. The relation to feedbacks is discussed, the linear case and several nonlinear examples are analyzed in detail.
description: The paper has been thoroughly revised
„Alles Schöne, was man so braucht“. Das historische Warenarchiv der WMF in Geislingen an der Steige
Creators: name: Büchner, Dieter
Publisher: name: Denkmalpflege in Baden-Württemberg – Nachrichtenblatt der Landesdenkmalpflege
Year: 2018

description: -
description: Denkmalpflege in Baden-Württemberg – Nachrichtenblatt der Landesdenkmalpflege, Bd. 47, Nr. 1 (2018)
Dynamical transitions in Markovian exciton transport
Creators: name: Hossein-Nejad, Hoda
name: Olaya-Castro, Alexandra
name: Fassioli, Francesca
name: Scholes, Gregory D.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Quantum Physics (quant-ph)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: The large deviation theory has recently been applied to open quantum systems to uncover dynamical crossovers in the space of quantum trajectories associated to Markovian evolutions. Such dynamical crossovers are characterized by qualitative changes in the fluctuations of rare quantum jump trajectories, and have been observed in the statistics of coherently driven quantum systems. In this article we investigate the counting statistics of rare quantum trajectories of an undriven system undergoing a pure relaxation process, namely, Markovian exciton transport. We find that dynamical crossovers occur in systems with a minimum of three interacting molecules, and are strongly activated by exciton delocalization and interference. Our results illustrate how quantum features of the underlying system Hamiltonian can influence the statistical properties of energy transfer processes in a non-trivial manner.
description: 15 pages, 3 figures, Accepted for publication in NJP
Additional file 1 of Sensory salience processing moderates attenuated gazes on faces in autism spectrum disorder: a case–control study
Creators: name: Bast, Nico
name: Mason, Luke
name: Ecker, Christine
name: Baumeister, Sarah
name: Banaschewski, Tobias
name: Jones, Emily J. H.
name: Murphy, Declan G. M.
name: Buitelaar, Jan K.
name: Loth, Eva
name: Pandina, Gahan
name: Freitag, Christine M.
Publisher: name: figshare
Year: 2023
Subjects: subject: Medicine
subject: Neuroscience
subject: Sociology
subject: FOS: Sociology
subject: 69999 Biological Sciences not elsewhere classified
subject: FOS: Biological sciences
subject: Science Policy
subject: 111714 Mental Health
subject: FOS: Health sciences

description: Additional file 1. Further information on duration of video scenes, pupil size comparisons between groups and video category, pupillary response components, stimuli characterization, comparison of model fits, model definitions, full linear mixed model results, Area-of-interest (AOI) definition criteria, applied R packages, and covariates in the statistical analyses.
Generation of optical Schrödinger's cat states by generalized photon subtraction
Creators: name: Takase, Kan
name: Yoshikawa, Jun-ichi
name: Asavanant, Warit
name: Endo, Mamoru
name: Furusawa, Akira
Publisher: name: arXiv
Year: 2020
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We propose a high-rate generation method of optical Schrödinger's cat states. Thus far, photon subtraction from squeezed vacuum states has been a standard method in cat-state generation, but its constraints on experimental parameters limit the generation rate. In this paper, we consider the state generation by photon number measurement in one mode of arbitrary two-mode Gaussian states, which is a generalization of conventional photon subtraction, and derive the conditions to generate high-fidelity and large-amplitude cat states. Our method relaxes the constraints on experimental parameters, allowing us to optimize them and attain a high generation rate. Supposing realistic experimental conditions, the generation rate of cat states with large amplitudes ($|α| \ge 2)$ can exceed megacounts per second, about $10^3$ to $10^6$ times better than typical rates of conventional photon subtraction. This rate would be improved further by the progress of related technologies. Ability to generate non-Gaussian states at a high rate is important in quantum computing using optical continuous variables, where scalable computing platforms have been demonstrated but preparation of non-Gaussian states of light remains as a challenging task. Our proposal reduces the difficulty of the state preparation and open a way for practical applications in quantum optics.
description: 8 pages, 5 figures
Asymptotic shape of the concave majorant of a Lévy process
Creators: name: Bang, David
name: Cázares, Jorge Ignacio González
name: Mijatović, Aleksandar
Publisher: name: arXiv
Year: 2021
Subjects: subject: Probability (math.PR)
subject: FOS: Mathematics
subject: 60F05, 60G51 (Primary)

description: We establish distributional limit theorems for the shape statistics of a concave majorant (i.e. the fluctuations of its length, its supremum, the time it is attained and its value at $T$) of any Lévy process on $[0,T]$ as $T\to\infty$. The scale of the fluctuations of the length and other statistics, as well as their asymptotic dependence, vary significantly with the tail behaviour of the Lévy measure. The key tool in the proofs is the recent representation of the concave majorant for all Lévy processes using a stick-breaking representation.
description: 24 pages, 3 figures, short video on https://youtu.be/b0AOJm-dE3g
Constraints on radion in a warped extra dimension model from Higgs boson searches at the LHC
Creators: name: Cho, Gi-Chol
name: Nomura, Daisuke
name: Ohno, Yoshiko
Publisher: name: arXiv
Year: 2013
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We study constraints on the radion mass and couplings in the Randall-Sundrum model from the recent LHC data on the Standard Model (SM) Higgs boson searches. When the radion is heavy enough so that it can decay into a pair of on-shell Z-bosons, we find that the ZZ channel gives a stringent constraint. For example, if the radion mass m_ϕis 200 GeV, the scale Λ_ϕwhich characterizes the interactions of the radion with the SM fields must be larger than 5 TeV. Even for m_ϕ=1 TeV, we find that the lower bound on Λ_ϕis 2 TeV.
description: 10 pages, 3 figures. v2: References added. Discussions added in Section 5. Results unchanged. v3: typos corrected, accepted for publication in Mod. Phys. Lett. A
A gradient flow equation for optimal control problems with end-point cost
Creators: name: Scagliotti, Alessandro
Publisher: name: arXiv
Year: 2021
Subjects: subject: Optimization and Control (math.OC)
subject: FOS: Mathematics

description: In this paper we consider a control system of the form $\dot x = F(x)u$, linear in the control variable $u$. Given a fixed starting point, we study a finite-horizon optimal control problem, where we want to minimize a weighted sum of an end-point cost and the squared $2$-norm of the control. This functional induces a gradient flow on the Hilbert space of admissible controls, and we prove a convergence result by means of the Lojasiewicz-Simon inequality. Finally, we show that, if we let the weight of the end-point cost tend to infinity, the resulting family of functionals is $Γ$-convergent, and it turns out that the limiting problem consists in joining the starting point and a minimizer of the end-point cost with a horizontal length-minimizer path.
description: 55 pages. Deep revision of the paper
Concave Utility Reinforcement Learning with Zero-Constraint Violations
Creators: name: Agarwal, Mridul
name: Bai, Qinbo
name: Aggarwal, Vaneet
Publisher: name: arXiv
Year: 2021
Subjects: subject: Machine Learning (cs.LG)
subject: Artificial Intelligence (cs.AI)
subject: FOS: Computer and information sciences

description: We consider the problem of tabular infinite horizon concave utility reinforcement learning (CURL) with convex constraints. For this, we propose a model-based learning algorithm that also achieves zero constraint violations. Assuming that the concave objective and the convex constraints have a solution interior to the set of feasible occupation measures, we solve a tighter optimization problem to ensure that the constraints are never violated despite the imprecise model knowledge and model stochasticity. We use Bellman error-based analysis for tabular infinite-horizon setups which allows analyzing stochastic policies. Combining the Bellman error-based analysis and tighter optimization equation, for $T$ interactions with the environment, we obtain a high-probability regret guarantee for objective which grows as $\Tilde{O}(1/\sqrt{T})$, excluding other factors. The proposed method can be applied for optimistic algorithms to obtain high-probability regret bounds and also be used for posterior sampling algorithms to obtain a loose Bayesian regret bounds but with significant improvement in computational complexity.
description: Transactions on Machine Learning Research, Dec 2022
Effect of Outlier Removal from Temporal ASF Corrections on Multichain Loran Positioning Accuracy
Creators: name: Park, Jongmin
name: Son, Pyo-Woong
name: Kim, Woohyun
name: Rhee, Joon Hyo
name: Seo, Jiwon
Publisher: name: arXiv
Year: 2020
Subjects: subject: Signal Processing (eess.SP)
subject: FOS: Electrical engineering, electronic engineering, information engineering

description: The widely used global navigation satellite systems (GNSSs) are vulnerable to radio frequency interference (RFI). Long-range navigation (Loran), a terrestrial navigation system, can compensate for this weakness; however, it suffers from low positioning accuracy, and studies are under way to improve its positioning performance. One such study has proposed the multichain Loran positioning method that uses the signals of transmitting stations belonging to different chains. Although the multichain Loran positioning performance is superior to the performance of conventional methods, the additional secondary factor (ASF) can still degrade its positioning accuracy. To mitigate the effects of temporal ASF, which is one of the ASF components, it is necessary to obtain temporal correction data from a nearby reference station at a known location. In this study, an experiment is performed to verify the effect of removing the outliers in the temporal correction data on the multichain Loran positioning accuracy.
description: Submitted to ICCAS 2020
Rapid Microwave-Assisted Synthesis of Dextran-Coated Iron Oxide Nanoparticles for Magnetic Resonance Imaging
Creators: name: Osborne, Elizabeth A.
name: Atkins, Tonya M.
name: Gilbert, Dustin A.
name: Kauzlarich, Susan M.
name: Liu, Kai
name: Louie, Angelique Y.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Currently, magnetic iron oxide nanoparticles are the only nano-sized magnetic resonance imaging (MRI) contrast agents approved for clinical use, yet commercial manufacturing of these agents has been limited or discontinued. Though there is still widespread demand for these particles both for clinical use and research, they are difficult to obtain commercially, and complicated syntheses make in-house preparation infeasible for most biological research labs or clinics. To make commercial production viable and increase accessibility of these products, it is crucial to develop simple, rapid, and reproducible preparations of biocompatible iron oxide nanoparticles. Here, we report a rapid, straightforward microwave-assisted synthesis of superparamagnetic dextran-coated iron oxide nanoparticles. The nanoparticles were produced in two hydrodynamic sizes with differing core morphologies by varying the synthetic method as either a two-step or single step process. A striking benefit of these methods is the ability to obtain swift and consistent results without the necessity for air, pH, or temperature sensitive techniques; therefore, reaction times and complex manufacturing processes are greatly reduced as compared to conventional synthetic methods. This is a great benefit for cost-effective translation to commercial production. The nanoparticles are found to be superparamagnetic and exhibit properties consistent for use in MRI. In addition, the dextran coating imparts the water-solubility and biocompatibility necessary for in vivo utilization.
description: 19 pages, 5 figures, 1 table
Flat Bands near Fermi Level of Topological Line Defects on Graphite
Creators: name: Feng, Lei
name: Lin, Xianqing
name: Meng, Lan
name: Nie, Jia-Cai
name: Ni, Jun
name: He, Lin
Publisher: name: arXiv
Year: 2012
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: Flat bands play an important role in the study of strongly correlated phenomena, such as ferromagnetism, superconductivity, and fractional quantum Hall effect. Here we report direct experimental evidence for the presence of flat bands, close to the Fermi level, in one-dimensional topological defects on graphite seen as a pronounced peak in the tunnelling density of states. Our ab initio calculations indicate that the flat bands with vanishing Fermi velocity originate from sp2 dangling bonds (with antibonding nature) of undercoordinated carbon atoms at the edges of the defects. We further demonstrate that the presence of flat bands could be a universal behavior of 1D defects of graphene/graphite with undercoordinated carbon atoms at the edges of the defects.