cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Strict Limit on CPT Violation from Polarization of Gamma-Ray Bursts
Creators: name: Toma, Kenji
name: Mukohyama, Shinji
name: Yonetoku, Daisuke
name: Murakami, Toshio
name: Gunji, Shuichi
name: Mihara, Tatehiro
name: Morihara, Yoshiyuki
name: Sakashita, Tomonori
name: Takahashi, Takuya
name: Wakashima, Yudai
name: Yonemochi, Hajime
name: Toukairin, Noriyuki
Publisher: name: arXiv
Year: 2012
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We report the strictest observational verification of CPT invariance in the photon sector, as a result of gamma-ray polarization measurement of distant gamma-ray bursts (GRBs), which are brightest stellar-size explosions in the universe. We detected the gamma-ray polarization of three GRBs with high significance, and the source distances may be constrained by a well-known luminosity indicator for GRBs. For the Lorentz- and CPT-violating dispersion relation E_{\pm}^2=p^2 \pm 2ξp^3/M_{Pl}, where \pm denotes different circular polarization states of the photon, the parameter ξis constrained as |ξ|
description: 4 pages; accepted for publication in Physical Review Letters; redshift estimates of GRBs changed (i.e z=0.382 was wrong for GRB 110721A) and calculations of \xi limit improved from the previous version
Personalized Federated Learning with Multi-branch Architecture
Creators: name: Mori, Junki
name: Yoshiyama, Tomoyuki
name: Ryo, Furukawa
name: Teranishi, Isamu
Publisher: name: arXiv
Year: 2022
Subjects: subject: Machine Learning (cs.LG)
subject: FOS: Computer and information sciences

description: Federated learning (FL) is a decentralized machine learning technique that enables multiple clients to collaboratively train models without requiring clients to reveal their raw data to each other. Although traditional FL trains a single global model with average performance among clients, statistical data heterogeneity across clients has resulted in the development of personalized FL (PFL), which trains personalized models with good performance on each client's data. A key challenge with PFL is how to facilitate clients with similar data to collaborate more in a situation where each client has data from complex distribution and cannot determine one another's distribution. In this paper, we propose a new PFL method (pFedMB) using multi-branch architecture, which achieves personalization by splitting each layer of a neural network into multiple branches and assigning client-specific weights to each branch. We also design an aggregation method to improve the communication efficiency and the model performance, with which each branch is globally updated with weighted averaging by client-specific weights assigned to the branch. pFedMB is simple but effective in facilitating each client to share knowledge with similar clients by adjusting the weights assigned to each branch. We experimentally show that pFedMB performs better than the state-of-the-art PFL methods using the CIFAR10 and CIFAR100 datasets.
description: Published at IJCNN 2023
Asymptotic Learning on Bayesian Social Networks
Creators: name: Mossel, Elchanan
name: Sly, Allan
name: Tamuz, Omer
Publisher: name: arXiv
Year: 2012
Subjects: subject: Probability (math.PR)
subject: FOS: Mathematics

description: Understanding information exchange and aggregation on networks is a central problem in theoretical economics, probability and statistics. We study a standard model of economic agents on the nodes of a social network graph who learn a binary "state of the world" S, from initial signals, by repeatedly observing each other's best guesses. Asymptotic learning is said to occur on a family of graphs G_n = (V_n, E_n), with |V_n| tending to infinity, if with probability tending to 1 as n tends to infinity all agents in G_n eventually estimate S correctly. We identify sufficient conditions for asymptotic learning and contruct examples where learning does not occur when the conditions do not hold.
description: 28 pages, 2 figures. arXiv admin note: substantial text overlap with arXiv:1105.4765
The Migrating Embryo Model for Disk Evolution
Creators: name: Basu, Shantanu
name: Vorobyov, Eduard I.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: A new view of disk evolution is emerging from self-consistent numerical simulation modeling of the formation of circumstellar disks from the direct collapse of prestellar cloud cores. This has implications for many aspects of star and planet formation, including the growth of dust and high-temperature processing of materials. A defining result is that the early evolution of a disk is crucially affected by the continuing mass loading from the core envelope, and is driven into recurrent phases of gravitational instability. Nonlinear spiral arms formed during these episodes fragment to form gaseous clumps in the disk. These clumps generally migrate inward due to gravitational torques arising from their interaction with a trailing spiral arm. Occasionally, a clump can open up a gap in the disk and settle into a stable orbit, revealing a direct pathway to the formation of companion stars, brown dwarfs, or giant planets. At other times, when multiple clumps are present, a low mass clump may even be ejected from the system, providing a pathway to the formation of free-floating brown dwarfs and giant planets in addition to low mass stars. Finally, it has been suggested that the inward migration of gaseous clumps can provide the proper conditions for the transport of high-temperature processed solids from the outer disk to the inner disk, and even possibly accelerate the formation of terrestrial planets in the inner disk. All of these features arising from clump formation and migration can be tied together conceptually in a Migrating Embryo model for disk evolution that can complement the well-known Core Accretion model for planet formation.
description: 11 pages, 5 figures, to appear in Meteoritics and Planetary Science
Detection of acceleration processes during the initial phase of the 12 June 2010 flare
Creators: name: Kashapova, L. K.
name: Meshalkina, N. S.
name: Kisil, M. S.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: We present an analysis of the plasma parameters during the initial phase of the 12 June 2010 flare (SOL2010-06-12T00:57). A peculiarity of the flare was the detection of $γ$--emission that is unusual for such weak and short event. The analysis revealed the presence of a flare precursor detected about 5 minutes before the flare onset in 94 Å\ images which spatially coincided with the non-polarized microwave (MW) source at 17 GHz (\textit{the Nobeyama Radio Heliograph}) that is the Neutral Line associated Source (NLS). A comparison of the results obtained from MW data by \textit{the Nobeyama Radio Polarimeters} and \textit{the multi-frequency Siberian radioheliograph} (the new 10-antenna radio heliograph prototype at 4.6 and 6.4 GHz) and hard X-ray (HXR) observations by \textit{the Fermi Gamma-ray Space Telescope} reveal the presence of accelerated electrons during the flare initial phase. The analysis of MW and HXR spectra also confirms the presence of accelerated particles. Moreover a good temporal correlation between several lightcurves in different HXR energy bands and at MW frequencies indicates generation of both HXR and MW emission by a common population of accelerated electrons. Detection of accelerated particles during the initial phase of the flare and soft-hard-harder (SHH) behavior of the spectra indicate several episodes of particle acceleration and confirm the non-impulsive type of the flare evolution.
description: 12 pages, 4 figures; accepted for publication in Solar Physics
On lower ramification subgroups and canonical subgroups
Creators: name: Hattori, Shin
Publisher: name: arXiv
Year: 2012
Subjects: subject: Number Theory (math.NT)
subject: Algebraic Geometry (math.AG)
subject: FOS: Mathematics

description: Let p be a rational prime, k be a perfect field of characteristic p and K be a finite totally ramified extension of the fraction field of the Witt ring of k. Let G be a finite flat commutative group scheme over O_K killed by some p-power. In this paper, we prove a description of ramification subgroups of G via the Breuil-Kisin classification, generalizing the author's previous result on the case where G is killed by p>2. As an application, we also prove that the higher canonical subgroup of a level n truncated Barsotti-Tate group G over O_K coincides with lower ramification subgroups of G if the Hodge height of G is less than (p-1)/p^n.
description: 23 pages; Theorem 1.3 added
Additional file 1 of Hepatitis E virus seroprevalence in pets in the Netherlands and the permissiveness of canine liver cells to the infection
Creators: name: Li, Yunlong
name: Qu, Changbo
name: Spee, Bart
name: Zhang, Ruyi
name: Penning, Louis C.
name: de Man, Robert A.
name: Peppelenbosch, Maikel P.
name: Fieten, Hille
name: Pan, Qiuwei
Publisher: name: figshare
Year: 2020
Subjects: subject: Space Science
subject: Medicine
subject: Biotechnology
subject: Immunology
subject: FOS: Clinical medicine
subject: Cancer
subject: Mental Health
subject: Infectious Diseases
subject: FOS: Health sciences
subject: Virology

description: Additional file 1: Table S1. qRT-PCR primer sequences. Figure S1. qRT-PCR determined standard curve. HEV plasmid based standard curve is generated by plotting the log copy number versus the cycle threshold (CT) value. Figure S2. Potent anti-HEV activity of ribavirin and interferon-α (IFN-α) in Huh7.5 cell model. Treatment of ribavirin or IFN-α for 24, 48, 72 or 96 h in the subgenomic model determined by luciferase activity (mean ± SEM, n = 5. CTR, non-treatment control.), and in the infectious model determined by viral RNA (mean ± SEM, n = 4. CTR, non-treatment control). *P < .05; **P < .001; ***P < .0001. Figure S3. Immunofluorescence staining of viral protein ORF2 (red) in BDE cells, upon infection of 24 h, 48 h, 72 h and 96 h. BDE-HEV cells incubated with the matched IgG control antibody serves as negative control, and HEV infected Huh7.5 cells serves as positive control. DAPI (blue) was applied to visualize nuclei. (40× oil immersion objective; Scale bar, 200 μm).
Rolf Reichardt, Hans Jürgen Lüsebrink (Hrsg.), Handbuch politisch-sozialer Grundbegriffe in Frankreich 1680–1820. Heft 12: Agiotage, Agioteur: Anette Höfer, Constitution, Constitutionnel: Wolfgang Schmale, Droit: Wolfgang Schmale, 1992
Creators: name: Meyer, Jean
Publisher: name: Francia
Year: 2019

description: -
description: Francia, Bd. 22 Nr. 2 (1995)
Транскриптор к анализатору спектра типа С4-44 (С5-3)
Creators: name: В.В., Любимов
Publisher: name: Zenodo
Year: 1987
Subjects: магнитное поле, магнитные измерения, магнитометры, анализаторы спектра

description: В работе (в предложении) дано описание конструкции и схемы электронного устройства (транскриптора), которое позволяет существенно расширить функциональные возможности спектроанализатора С4-44 (С5-3) при использовании его как для настройки аналоговых частей и трактов магнитометров, так и для работы (в процессе регистрации данных) с магнитометрами имеющими аналоговый выход измеряемых данных. На данное рационализаторское предложение получено официальное Удостоверение зарегистрированное в Патентном отделе ИЗМИРАН СССР 08.04.1987 г. под №6/327.
Nonequilibrium dynamics of a spin-3/2 Blume Capel model with quenched random crystal field
Creators: name: Vatansever, Erol
name: Polat, Hamza
Publisher: name: arXiv
Year: 2012
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: The relaxation and complex magnetic susceptibility treatments of a spin-3/2 Blume-Capel model with quenched random crystal field on a two dimensional square lattice are investigated by a method combining the statistical equilibrium theory and the thermodynamics of linear irreversible processes. Generalized force and flux are defined in irreversible thermodynamics limit. The kinetic equation for the magnetization is obtained by using linear response theory. Temperature and also crystal field dependencies of the relaxation time are obtained in the vicinity of phase transition points. We found that the relaxation time exhibits divergent treatment near the order-disorder phase transition point as well as near the isolated critical point whereas it displays cusp behavior near the first order phase transition point. In addition, much effort has been devoted to investigation of complex magnetic susceptibility response of the system to changing applied field frequencies and it is observed that the considered disordered magnetic system exhibits unusual and interesting behaviors. Furthermore, dynamical mean field critical exponents for the relaxation time and complex magnetic susceptibility are calculated in order to formulate the critical behavior of the system. Finally, a comparison of our observations with those of recently published studies is represented and it is shown that there exists a qualitatively good agreement.
description: 13 pages, 8 figures
Phase mask pinholes as spatial filters for laser interference lithography
Creators: name: Capraro, Giovanna
name: Lipkin, Maxim
name: Möller, Michael
name: Bolten, Jens
name: Lemme, Max C.
Publisher: name: arXiv
Year: 2022
Subjects: subject: Optics (physics.optics)
subject: Applied Physics (physics.app-ph)
subject: FOS: Physical sciences

description: Laser resonators have outputs with Gaussian spatial beam profiles. In laser interference lithography (LIL), using such Gaussian shaped beams leads to an inhomogeneous exposure of the substrate. As a result, dimensions of lithography defined features vary significantly across the substrate. In most LIL setups, pinholes are used as filters to remove optical noise. Following a concept proposed by Hariharan et. al. a phase mask can be added to these pinholes. In theory, this modification results in a more uniform beam profile, and, if applied as spatial filters in LIL, in improved exposure and hence feature size uniformity. Here, we report on the first successful fabrication of such elements and demonstrate their use in an LIL setup to reduce feature dimension variations from 47.2% to 27.5% using standard and modified pinholes, respectively.
Isometries in higher dimensional CCNV spacetimes
Creators: name: McNutt, David
name: Coley, Alan
name: Pelavas, Nicos
Publisher: name: arXiv
Year: 2012
Subjects: subject: Mathematical Physics (math-ph)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences
subject: 53B50, 53B30, 83E30, 83E50

description: We study the class of higher-dimensional Kundt metrics admitting a covariantly constant null vector, known as CCNV spacetimes. We pay particular attention to those CCNV spacetimes with constant (polynomial) curvature invariants (CSI). We investigate the existence of an additional isometry in CCNV spacetimes, by studying the Killing equations for the general form of the CCNV metric. In particular, we list all CCNV spacetimes allowing an additional non-spacelike isometry for all values of the lightcone coordinate v, which are of interest due to the invariance of the metric under a translation in v. As an application we use our results to find all CSI CCNV spacetimes with an additional isometry as well as the subset of these spacetimes in which the isometry is non-spacelike for all values v.
description: 46 pages
Composite Score for Anomaly Detection in Imbalanced Real-World Industrial Dataset
Creators: name: Bougaham, Arnaud
name: Adoui, Mohammed El
name: Linden, Isabelle
name: Frénay, Benoît
Publisher: name: arXiv
Year: 2022
Subjects: subject: Computer Vision and Pattern Recognition (cs.CV)
subject: Machine Learning (cs.LG)
subject: FOS: Computer and information sciences

description: In recent years, the industrial sector has evolved towards its fourth revolution. The quality control domain is particularly interested in advanced machine learning for computer vision anomaly detection. Nevertheless, several challenges have to be faced, including imbalanced datasets, the image complexity, and the zero-false-negative (ZFN) constraint to guarantee the high-quality requirement. This paper illustrates a use case for an industrial partner, where Printed Circuit Board Assembly (PCBA) images are first reconstructed with a Vector Quantized Generative Adversarial Network (VQGAN) trained on normal products. Then, several multi-level metrics are extracted on a few normal and abnormal images, highlighting anomalies through reconstruction differences. Finally, a classifer is trained to build a composite anomaly score thanks to the metrics extracted. This three-step approach is performed on the public MVTec-AD datasets and on the partner PCBA dataset, where it achieves a regular accuracy of 95.69% and 87.93% under the ZFN constraint.
description: This version of the article has been accepted for publication, after peer review and is subject to Springer Nature AM terms of use, but is not the Version of Record and does not reflect post-acceptance improvements, or any corrections. The Version of Record is available online at: https://doi.org/10.1007/s10994-023-06415-9
Deriving the asymptotic distribution of U- and V-statistics of dependent data using weighted empirical processes
Creators: name: Beutner, Eric
name: Zähle, Henryk
Publisher: name: arXiv
Year: 2012
Subjects: subject: Statistics Theory (math.ST)
subject: FOS: Mathematics

description: It is commonly acknowledged that V-functionals with an unbounded kernel are not Hadamard differentiable and that therefore the asymptotic distribution of U- and V-statistics with an unbounded kernel cannot be derived by the Functional Delta Method (FDM). However, in this article we show that V-functionals are quasi-Hadamard differentiable and that therefore a modified version of the FDM (introduced recently in (J. Multivariate Anal. 101 (2010) 2452--2463)) can be applied to this problem. The modified FDM requires weak convergence of a weighted version of the underlying empirical process. The latter is not problematic since there exist several results on weighted empirical processes in the literature; see, for example, (J. Econometrics 130 (2006) 307--335, Ann. Probab. 24 (1996) 2098--2127, Empirical Processes with Applications to Statistics (1986) Wiley, Statist. Sinica 18 (2008) 313--333). The modified FDM approach has the advantage that it is very flexible w.r.t. both the underlying data and the estimator of the unknown distribution function. Both will be demonstrated by various examples. In particular, we will show that our FDM approach covers mainly all the results known in literature for the asymptotic distribution of U- and V-statistics based on dependent data -- and our assumptions are by tendency even weaker. Moreover, using our FDM approach we extend these results to dependence concepts that are not covered by the existing literature.
description: Published in at http://dx.doi.org/10.3150/11-BEJ358 the Bernoulli (http://isi.cbs.nl/bernoulli/) by the International Statistical Institute/Bernoulli Society (http://isi.cbs.nl/BS/bshome.htm)
Tedania Gray 1867
Creators: name: Trejo, Alejandra
name: Carballo, José Luis
name: Segovia, Johanna
Publisher: name: Zenodo
Year: 2025
Subjects: Biodiversity
Taxonomy
Animalia
Porifera
Demospongiae
Poecilosclerida
Tedaniidae
Tedania

description: Genus Tedania Gray, 1867
Definition. Tedaniidae with differentiated ectosomal and choanosomal megascleres (Van Soest 2002).
description: Published as part of Trejo, Alejandra, Carballo, José Luis & Segovia, Johanna, 2025, New records and checklist of sponges from El Salvador (Eastern Tropical Pacific), pp. 99-125 in Zootaxa 5613 (1) on page 111, DOI: 10.11646/zootaxa.5613.1.4, http://zenodo.org/record/15216236
Diffusion on edges of insulating graphene with intravalley and intervalley scattering
Creators: name: Tkachov, G.
name: Hentschel, Martina
Publisher: name: arXiv
Year: 2012
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: Band gap engineering in graphene may open the routes towards transistor devices in which electric current can be switched off and on at will. One may, however, ask if a semiconducting band gap alone is sufficient to quench the current in graphene. In this paper we demonstrate that despite a bulk band gap graphene can still have metallic conductance along the sample edges (provided that they are shorter than the localization length). We find this for single-layer graphene with a zigzag-type boundary which hosts gapless propagating edge states even in the presence of a bulk band gap. By generating inter-valley scattering, sample disorder reduces the edge conductance. However, for weak scattering a metallic regime emerges with the diffusive conductance G = (e^2/h)(l_KK' / L) per spin, where l_KK' is the transport mean-free path due to the inter-valley scattering and L >> l_KK' is the edge length. We also take intra-valley scattering by smooth disorder (e.g. by remote ionized impurities in the substrate) into account. Albeit contributing to the elastic quasiparticle life-time, the intra-valley scattering has no effect on G.
description: 7.5 pages, 2 figures, published version
The role of the Riemann-Silberstein vector in classical and quantum theories of electromagnetism
Creators: name: Bialynicki-Birula, Iwo
name: Bialynicka-Birula, Zofia
Publisher: name: arXiv
Year: 2012
Subjects: subject: Classical Physics (physics.class-ph)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: It is shown that the use of the Riemann-Silberstein (RS) vector greatly simplifies the description of the electromagnetic field both in the classical domain and in the quantum domain. In this review we describe many specific examples where this vector enables one to significantly shorten the derivations and make them more transparent. We also argue why the RS vector may be considered as the best possible choice for the photon wave function.
description: Topical review
Levy flights in confining environments: Random paths and their statistics
Creators: name: Zaba, M.
name: Garbaczewski, P.
name: Stephanovich, V.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Mathematical Physics (math-ph)
subject: Chemical Physics (physics.chem-ph)
subject: Data Analysis, Statistics and Probability (physics.data-an)
subject: FOS: Physical sciences

description: We analyze a specific class of random systems that are driven by a symmetric Lévy stable noise. In view of the Lévy noise sensitivity to the confining "potential landscape" where jumps take place (in other words, to environmental inhomogeneities), the pertinent random motion asymptotically sets down at the Boltzmann-type equilibrium, represented by a probability density function (pdf) $ρ_*(x) \sim \exp [-Φ(x)]$. Since there is no Langevin representation of the dynamics in question, our main goal here is to establish the appropriate path-wise description of the underlying jump-type process and next infer the $ρ(x,t)$ dynamics directly from the random paths statistics. A priori given data are jump transition rates entering the master equation for $ρ(x,t)$ and its target pdf $ρ_*(x)$. We use numerical methods and construct a suitable modification of the Gillespie algorithm, originally invented in the chemical kinetics context. The generated sample trajectories show up a qualitative typicality, e.g. they display structural features of jumping paths (predominance of small vs large jumps) specific to particular stability indices $μ\in (0,2)$.
description: 10 pages, 7 figures
Weak Lensing Tomographic Redshift Distribution Inference for the Hyper Suprime-Cam Subaru Strategic Program three-year shape catalogue
Creators: name: Rau, Markus Michael
name: Dalal, Roohi
name: Zhang, Tianqing
name: Li, Xiangchong
name: Nishizawa, Atsushi J.
name: More, Surhud
name: Mandelbaum, Rachel
name: Miyatake, Hironao
name: Strauss, Michael A.
name: Takada, Masahiro
Publisher: name: arXiv
Year: 2022
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: We present posterior sample redshift distributions for the Hyper Suprime-Cam Subaru Strategic Program Weak Lensing three-year (HSC Y3) analysis. Using the galaxies' photometry and spatial cross-correlations, we conduct a combined Bayesian Hierarchical Inference of the sample redshift distributions. The spatial cross-correlations are derived using a subsample of Luminous Red Galaxies (LRGs) with accurate redshift information available up to a photometric redshift of $z < 1.2$. We derive the photometry-based constraints using a combination of two empirical techniques calibrated on spectroscopic- and multiband photometric data that covers a spatial subset of the shear catalog. The limited spatial coverage induces a cosmic variance error budget that we include in the inference. Our cross-correlation analysis models the photometric redshift error of the LRGs to correct for systematic biases and statistical uncertainties. We demonstrate consistency between the sample redshift distributions derived using the spatial cross-correlations, the photometry, and the posterior of the combined analysis. Based on this assessment, we recommend conservative priors for sample redshift distributions of tomographic bins used in the three-year cosmological Weak Lensing analyses.
description: 23 pages, 11 figures, 1 table, updated to match the accepted version in the MNRAS
Killing vectors in higher dimensional spacetimes with constant scalar curvature invariants
Creators: name: McNutt, David
name: Pelavas, Nicos
name: Coley, Alan
Publisher: name: arXiv
Year: 2012
Subjects: subject: Differential Geometry (math.DG)
subject: High Energy Physics - Theory (hep-th)
subject: Mathematical Physics (math-ph)
subject: FOS: Mathematics
subject: FOS: Physical sciences
subject: 53B50, 53B30, 83E30, 83E50

description: We study the existence of a non-spacelike isometry, ζ, in higher dimensional Kundt spacetimes with constant scalar curvature invariants (CSI). We present the particular forms for the null or timelike Killing vectors and a set of constraints for the metric functions in each case. Within the class of N dimensional CSI Kundt spacetimes, admitting a non-spacelike isometry, we determine which of these can admit a covariantly constant null vector that also satisfy ζ_{[a;b]} = 0.
description: 20 pages
title: Dpe2/phs1 revealed unique starch metabolism with three distinct phases characterized by different starch granule numbers per chloroplast, allowing insights into the control mechanism of granule number regulation by gene co-regulation and metabolic profiling
Creators: name: Li, Xiaoping
name: Apriyanto, Ardha
name: Flores Castellanos, Junio
name: Compart, Julia
name: Muntaha, Sidratul Nur
name: Fettke, Joerg
Publisher: name: Universitätsverlag Potsdam
Year: 2022
Subjects: subject: 570 Biowissenschaften; Biologie

description: An Arabidopsis mutant lacking both the cytosolic Disproportionating enzyme 2 (DPE2) and the plastidial glucan Phosphorylase 1 (PHS1) revealed a unique starch metabolism. Dpe2/phs1 has been reported to have only one starch granule number per chloroplast when grown under diurnal rhythm. For this study, we analyzed dpe2/phs1 in details following the mutant development, and found that it showed three distinct periods of granule numbers per chloroplast, while there was no obvious change observed in Col-0. In young plants, the starch granule number was similar to that in Col-0 at first, and then decreased significantly, down to one or no granule per chloroplast, followed by an increase in the granule number. Thus, in dpe2/phs1, control over the starch granule number is impaired, but it is not defective in starch granule initiation. The data also indicate that the granule number is not fixed, and is regulated throughout plant growth. Furthermore, the chloroplasts revealed alterations during these three periods, with a partially strong aberrant morphology in the middle phase. Interestingly, the unique metabolism was perpetuated when starch degradation was further impaired through an additional lack of Isoamylase 3 (ISA3) or Starch excess 4 (SEX4). Transcriptomic studies and metabolic profiling revealed the co-regulation of starch metabolism-related genes and a clear metabolic separation between the periods. Most senescence-induced genes were found to be up-regulated more than twice in the starch-less mature leaves. Thus, dpe2/phs1 is a unique plant material source, with which we may study starch granule number regulation to obtain a more detailed understanding.
description: Zweitveröffentlichungen der Universität Potsdam : Mathematisch-Naturwissenschaftliche Reihe; 1286
Additional file 1 of Effect of hydrogen/oxygen therapy for ordinary COVID-19 patients: a propensity-score matched case-control study
Creators: name: Zeng, Yingying
name: Guan, Weijie
name: Wang, Kai
name: Jie, Zhijun
name: Zou, Xu
name: Tan, Xiaoping
name: Li, Xinyu
name: Chen, Xiaohua
name: Ren, Xiaoting
name: Jiang, Junhong
name: Zheng, Zeguang
name: Shi, Jindong
name: Zhong, Nanshan
Publisher: name: figshare
Year: 2023
Subjects: subject: Medicine
subject: Immunology
subject: FOS: Clinical medicine
subject: Biological Sciences not elsewhere classified
subject: Cancer
subject: Science Policy
subject: Hematology
subject: Virology
subject: Computational Biology

description: Supplementary Material 1
Combined Structural and Plasmonic Enhancement of Nanometer-Thin Film Photocatalysis for Solar-Driven Wastewater Treatment
Creators: name: Daskalova, Desislava
name: Flores, Gonzalo Aguila
name: Plachetka, Ulrich
name: Möller, Michael
name: Wolters, Julia
name: Wintgens, Thomas
name: Lemme, Max C.
Publisher: name: arXiv
Year: 2022
Subjects: subject: Optics (physics.optics)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Chemical Physics (physics.chem-ph)
subject: FOS: Physical sciences

description: Titanium dioxide (TiO$_2$) thin films are commonly used as photocatalytic materials. Here, we enhance the photocatalytic activity of devices based on TiO$_2$ by combining nanostructured glass substrates with metallic plasmonic nanostructures. We achieve a three-fold increase of the catalyst's surface area through nanoscale three-dimensional patterning of periodic conical grids, which creates a broadband optical absorber. The addition of aluminum and gold activates the structures plasmonically and improves the optical absorption in the TiO$_2$ films to above 70% in the visible and NIR spectral range. We demonstrate the resulting enhancement of the photocatalytic activity with organic dye degradation tests under different light sources. Furthermore, the pharmaceutical drug Carbamazepine, a common water pollutant, is reduced in aqueous solution by up to 48% in 360 minutes. Our approach is scalable and potentially enables future solar-driven wastewater treatment.
description: 36 pages
Comment on the CMS search for charge-asymmetric production of W' boson in ttbar + jet events
Creators: name: Endo, Motoi
name: Iwamoto, Sho
Publisher: name: arXiv
Year: 2012
Subjects: subject: High Energy Physics - Experiment (hep-ex)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: A reanalysis is presented on the CMS result on a search for a W' boson that couples to the top and down quarks. The model is motivated by the Tevatron results on the forward-backward asymmetry of ttbar pair production. In the evaluation of the theoretical cross section of pp -> ttbar + j, the interference effect between the SM and W' amplitudes is shown to be important, though it is ignored in the CMS analysis. The lower mass bound on the W' boson is relaxed from 840 GeV to 740 GeV at the 95% C.L. due to the interference effect. The bound is also compared to the top forward-backward asymmetry.
description: 7 pages, 4 figures
Simulations of electromagnetic effects in high frequency capacitively coupled discharges using the Darwin approximation
Creators: name: Eremin, Denis
name: Hemke, Torben
name: Brinkmann, Ralf Peter
name: Mussenbrock, Thomas
Publisher: name: arXiv
Year: 2012
Subjects: subject: Plasma Physics (physics.plasm-ph)
subject: FOS: Physical sciences

description: The Darwin approximation is investigated for its possible use in simulation of electromagnetic effects in large size, high frequency capacitively coupled discharges. The approximation is utilized within the framework of two different fluid models which are applied to typical cases showing pronounced standing wave and skin effects. With the first model it is demonstrated that Darwin approximation is valid for treatment of such effects in the range of parameters under consideration. The second approach, a reduced nonlinear Darwin approximation-based model, shows that the electromagnetic phenomena persist in a more realistic setting. The Darwin approximation offers a simple and efficient way of carrying out electromagnetic simulations as it removes the Courant condition plaguing explicit electromagnetic algorithms and can be implemented as a straightforward modification of electrostatic algorithms. The algorithm described here avoids iterative schemes needed for the divergence cleaning and represents a fast and efficient solver, which can be used in fluid and kinetic models for self-consistent description of technical plasmas exhibiting certain electromagnetic activity.
Magnetic White Dwarf Stars in the Sloan Digital Sky Survey
Creators: name: Kepler, S. O.
name: Pelisoli, Ingrid
name: Jordan, Stefan
name: Kleinman, Scot J.
name: Kulebi, Baybars
name: Koester, Detlev
name: Peçanha, Viviane
name: Castanheira, Bárbara G.
name: Nitta, Atsuko
name: Costa, José Eduardo da Silveira
name: Winget, Don Earl
name: Kanaan, Antonio
name: Fraga, Luciano
Publisher: name: arXiv
Year: 2012
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: To obtain a better statistics on the occurrence of magnetism among white dwarfs, we searched the spectra of the hydrogen atmosphere white dwarf stars (DAs) in the Data Release 7 of the Sloan Digital Sky Survey (SDSS) for Zeeman splittings and estimated the magnetic fields. We found 521 DAs with detectable Zeeman splittings, with fields in the range from around 1 MG to 733 MG, which amounts to 4% of all DAs observed. As the SDSS spectra have low signal-to-noise ratios, we carefully investigated by simulations with theoretical spectra how reliable our detection of magnetic field was.
description: 30 pages, 14 figures. R1: updated references
Spin-dependent WIMP scattering off nuclei
Creators: name: Menendez, J.
name: Gazit, D.
name: Schwenk, A.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: Nuclear Experiment (nucl-ex)
subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: Chiral effective field theory (EFT) provides a systematic expansion for the coupling of WIMPs to nucleons at the momentum transfers relevant to direct cold dark matter detection. We derive the currents for spin-dependent WIMP scattering off nuclei at the one-body level and include the leading long-range two-body currents, which are predicted in chiral EFT. As an application, we calculate the structure factor for spin-dependent WIMP scattering off 129,131Xe nuclei, using nuclear interactions that have been developed to study nuclear structure and double-beta decays in this region. We provide theoretical error bands due to the nuclear uncertainties of WIMP currents in nuclei.
description: 6 pages, 3 figures, published version
Bernoulli honeywords
Creators: name: Wang, Ke Coby
name: Reiter, Michael K.
Publisher: name: arXiv
Year: 2022
Subjects: subject: Cryptography and Security (cs.CR)
subject: FOS: Computer and information sciences

description: Decoy passwords, or "honeywords," planted in a credential database can alert a site to its breach if ever submitted in a login attempt. To be effective, some honeywords must appear at least as likely to be user-chosen passwords as the real ones, and honeywords must be very difficult to guess without having breached the database, to prevent false breach alarms. These goals have proved elusive, however, for heuristic honeyword generation algorithms. In this paper we explore an alternative strategy in which the defender treats honeyword selection as a Bernoulli process in which each possible password (except the user-chosen one) is selected as a honeyword independently with some fixed probability. We show how Bernoulli honeywords can be integrated into two existing system designs for leveraging honeywords: one based on a honeychecker that stores the secret index of the user-chosen password in the list of account passwords, and another that does not leverage secret state at all. We show that Bernoulli honeywords enable analytic derivation of false breach-detection probabilities irrespective of what information the attacker gathers about the sites' users; that their true and false breach-detection probabilities demonstrate compelling efficacy; and that Bernoulli honeywords can even enable performance improvements in modern honeyword system designs.
description: Accepted for publication in the Network and Distributed System Security (NDSS) Symposium 2024
Analytical matrix elements of the Uehling potential in three-body systems, and applications to exotic molecules
Creators: name: Karr, Jean-Philippe
name: Hilico, Laurent
Publisher: name: arXiv
Year: 2012
Subjects: subject: Atomic Physics (physics.atom-ph)
subject: FOS: Physical sciences

description: Exact analytical expressions for the matrix elements of the Uehling potential in a basis of explicitly correlated exponential wave functions are presented. The obtained formulas are then used to compute with an improved accuracy the vacuum polarization correction to the binding energy of muonic and pionic molecules, both in a first-order perturbative treatment and in a nonperturbative approach. The first resonant states lying below the n=2 threshold are also studied, by means of the stabilization method with a real dilatation parameter.
Brane inflation: A field theory approach in background supergravity
Creators: name: Choudhury, Sayantan
name: Pal, Supratik
Publisher: name: arXiv
Year: 2012
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We propose a model of inflation in the framework of brane cosmology driven by background supergravity. Starting from bulk supergravity we construct the inflaton potential on the brane and employ it to investigate for the consequences to inflationary paradigm. To this end, we derive the expressions for the important parameters in brane inflation, which are somewhat different from their counterparts in standard cosmology, using the one loop radiative corrected potential. We further estimate the observable parameters and find them to fit well with recent observational data. We have studied extensively reheating phenomenology, which explains the thermal history of the universe and leptogenesis through the production of thermal gravitino pertaining to the particle physics phenomenology of the early universe.
description: 4 pages, 2 figures; to appear in the Proceedings of COSGRAV-2012 (International Conference on Modern Perspectives of Cosmology and Gravitation), Indian Statistical Institute, Kolkata, India, February 7-11, 2012
Minimising the total number of subsets and supersets
Creators: name: Gowty, Adam
name: Horsley, Daniel
name: Mammoliti, Adam
Publisher: name: arXiv
Year: 2022
Subjects: subject: Combinatorics (math.CO)
subject: FOS: Mathematics
subject: 05D05 (Primary) 05C35, 05C69 (Secondary)

description: Let $\mathcal{F}$ be a family of subsets of a ground set $\{1,\ldots,n\}$ with $|\mathcal{F}|=m$, and let $\mathcal{F}^{\updownarrow}$ denote the family of all subsets of $\{1,\ldots,n\}$ that are subsets or supersets of sets in $\mathcal{F}$. Here we determine the minimum value that $|\mathcal{F}^{\updownarrow}|$ can attain as a function of $n$ and $m$. This can be thought of as a `two-sided' Kruskal-Katona style result. It also gives a solution to the isoperimetric problem on the graph whose vertices are the subsets of $\{1,\ldots,n\}$ and in which two vertices are adjacent if one is a subset of the other. This graph is a supergraph of the $n$-dimensional hypercube and we note some similarities between our results and Harper's theorem, which solves the isoperimetric problem for hypercubes. In particular, analogously to Harper's theorem, we show there is a total ordering of the subsets of $\{1,\ldots,n\}$ such that, for each initial segment $\mathcal{F}$ of this ordering, $\mathcal{F}^{\updownarrow}$ has the minimum possible size. Our results also answer a question that arises naturally out of work of Gerbner et al. on cross-Sperner families and allow us to strengthen one of their main results.
description: 21 pages, 1 figure
Top-Quark Charge Asymmetry with a Jet Handle
Creators: name: Berge, Stefan
name: Westhoff, Susanne
Publisher: name: arXiv
Year: 2012
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: Pairs of top and antitop quarks are produced at the LHC to a large extent in association with a hard jet. We investigate the charge asymmetry in top pair + jet production in quantum chromodynamics (QCD) and with additional massive color-octet vector bosons. The total charge asymmetry at the LHC is suppressed by the large charge-symmetric background from gluon-gluon fusion. We show to what extent the asymmetry can be enhanced by suitable phase space cuts and, in particular, elaborate on the kinematics of the hard jet in the top pair + jet final state. We demonstrate that in QCD, the asymmetry amounts to -1.5% for central jets without an excessive reduction of the cross section. By applying additional kinematical cuts, the asymmetry can be enhanced to -4%, but at the cost of a strong reduction of the cross section. Massive color-octet states can generate sizeable effects in top pair + jet production, both on the charge asymmetry and on the cross section. The charge asymmetry probes both vector and axial-vector couplings to quarks. We show that massive color octets can generate asymmetries up to +-10% for moderate and up to +-30% for strong kinematical cuts to be used in experimental analyses at the LHC. Jet kinematics can be used to obtain further information about the nature of the couplings and thereby to discriminate between different models.
description: 29 pages, 12 figures
Model for magnetic flux pattern induced by in-plane magnetic fields on spatially inhomogeneous superconducting interfaces of LaAlO_3-SrTiO_3
Creators: name: Aoyama, Kazushi
name: Sigrist, Manfred
Publisher: name: arXiv
Year: 2012
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: The effect of spatial inhomogeneity on the properties of a two-dimensional non-centrosymmetric superconductor in an in-plane magnetic field is investigated, as it can be realized in LaAlO_3-SrTiO_3 interfaces. We demonstrate that the spatial variation of Rashba spin-orbit coupling (RSOC) yields a local magnetic flux pattern due to the field-induced inhomogeneous helical phase. For sufficiently strong fields, vortices can nucleate at inhomogeneities of the RSOC.
description: 5 pages, 3 figures, accepted for publication in PRL
DEBAIXO DE VARA
Creators: name: Santana, José Cláudio Pavão
Publisher: name: Zenodo - Cadernos da Pena do Pavao
Year: 2023

description: Ano 08 – n. 23/2020
O requinte com que o Min Celso de Mello fez questão de enfatizar a convocação de três generais para deporem como testemunhaas, em tempos de Império, seria compreensível.
Design, Modeling and Control of a Top-loading Fully-Actuated Cargo Transportation Multirotor
Creators: name: Park, Wooyong
name: Wu, Xiangyu
name: Lee, Dongjae
name: Lee, Seung Jae
Publisher: name: arXiv
Year: 2023
Subjects: subject: Robotics (cs.RO)
subject: Systems and Control (eess.SY)
subject: FOS: Computer and information sciences
subject: FOS: Electrical engineering, electronic engineering, information engineering

description: Existing multirotor-based cargo transportation does not maintain a constant cargo attitude due to underactuation; however, fragile payloads may require a consistent posture. The conventional method is also cumbersome when loading cargo, and the size of the cargo to be loaded is limited. To overcome these issues, we propose a new fully-actuated multirotor unmanned aerial vehicle platform capable of translational motion while maintaining a constant attitude. Our newly developed platform has a cubic exterior and can freely place cargo at any point on the flat top surface. However, the center-of-mass (CoM) position changes when cargo is loaded, leading to undesired attitudinal motion due to unwanted torque generation. To address this problem, we introduce a new model-free center-of-mass position estimation method inspired by the extremum-seeking control (ESC) technique. Experimental results are presented to validate the performance of the proposed estimation method, effectively estimating the CoM position and showing satisfactory constant-attitude flight performance.
description: 8 pages, 8 figures, submitted to IEEE RA-L
title: Exploring the potential of universal design for learning with regards to mental health issues in higher education
Creators: name: Fovet, Frédéric
Publisher: name: Pacific Rim International Conference on Disability and Diversity Conference Proceedings
Year: 2020
Subjects: Higher education
Mental health

description: Licensed under CC BY 4.0.
description: The paper explores the potential of universal design for learning (UDL) in addressing mental health (MH) issues within higher education (HE) teaching and learning, from a multidisciplinary perspective. It examines first the hurdles which are generically reported to accessibility services by students. It then explores the tension instructors report with regards to addressing students' mental health issues in the classroom. Lastly, the paper examines UDL solutions which are being proposed by instructional designers, from a design perspective, to minimize the impact of mental health issues within the learning experience.
title: Examining the (lack of) impact the #disabilitytoowhite movement has had on higher ed disability service provision
Creators: name: Fovet, Frédéric
Publisher: name: Pacific Rim International Conference on Disability and Diversity Conference Proceedings
Year: 2020
Subjects: Disability
Higher education

description: Licensed under CC BY 4.0.
description: The paper first examines the media coverage surrounding the #disabilitytoowhite movement. It then unpacks the agenda of this activist movement. The paper subsequently surveys and gauges the current state of play around intersectionality within disability services, advocacy and scholarship in academia within the North American landscape. It examines and analyzes the resistance to change that is tangible in this area. Finally, the paper explores possible sustainable solutions for campuses attempting to address the lack of intersectionality within disability service provision.