cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
title: Orthopedic Injury Profiles in Adolescent Elite Athletes
title: A Retrospective Analysis From a Sports Medicine Department
titleType: Subtitle
Creators: name: Cassel, Michael
name: Müller, Juliane
name: Moser, Othmar
name: Strempler, Mares Elaine
name: Reso, Judith
name: Mayer, Frank
Publisher: name: Universität Potsdam
Year: 2019

description: Aim: The aim of the study was to identify common orthopedic sports injury profiles in adolescent elite athletes with respect to age, sex, and anthropometrics. Methods: A retrospective data analysis of 718 orthopedic presentations among 381 adolescent elite athletes from 16 different sports to a sports medical department was performed. Recorded data of history and clinical examination included area, cause and structure of acute and overuse injuries. Injury-events were analyzed in the whole cohort and stratified by age (11–14/15–17 years) and sex. Group differences were tested by chi-squared-tests. Logistic regression analysis was applied examining the influence of factors age, sex, and body mass index (BMI) on the outcome variables area and structure (a = 0.05). Results: Higher proportions of injury-events were reported for females (60%) and athletes of the older age group (66%) than males and younger athletes. The most frequently injured area was the lower extremity (47%) followed by the spine (30.5%) and the upper extremity (12.5%). Acute injuries were mainly located at the lower extremity (74.5%), while overuse injuries were predominantly observed at the lower extremity (41%) as well as the spine (36.5%). Joints (34%), muscles (22%), and tendons (21.5%) were found to be the most often affected structures. The injured structures were different between the age groups (p = 0.022), with the older age group presenting three times more frequent with ligament pathology events (5.5%/2%) and less frequent with bony problems (11%/20.5%) than athletes of the younger age group. The injured area differed between the sexes (p = 0.005), with males having fewer spine injury-events (25.5%/34%) but more upper extremity injuries (18%/9%) than females. Regression analysis showed statistically significant influence for BMI (p = 0.002) and age (p = 0.015) on structure, whereas the area was significantly influenced by sex (p = 0.005). Conclusion: Events of soft-tissue overuse injuries are the most common reasons resulting in orthopedic presentations of adolescent elite athletes. Mostly, the lower extremity and the spine are affected, while sex and age characteristics on affected area and structure must be considered. Therefore, prevention strategies addressing the injury-event profiles should already be implemented in early adolescence taking age, sex as well as injury entity into account.
description: Postprints der Universität Potsdam : Humanwissenschaftliche Reihe, 559
title: The ABCB7-Like Transporter PexA in Rhodobacter capsulatus Is Involved in the Translocation of Reactive Sulfur Species
Creators: name: Riedel, Simona
name: Siemiatkowska, Beata
name: Watanabe, Mutsumi
name: Müller, Christina S.
name: Schünemann, Volker
name: Hoefgen, Rainer
name: Leimkühler, Silke
Publisher: name: Universität Potsdam
Year: 2019

description: The mitochondrial ATP-binding cassette (ABC) transporters ABCB7 in humans, Atm1 in yeast and ATM3 in plants, are highly conserved in their overall architecture and particularly in their glutathione binding pocket located within the transmembrane spanning domains. These transporters have attracted interest in the last two decades based on their proposed role in connecting the mitochondrial iron sulfur (Fe–S) cluster assembly with its cytosolic Fe–S cluster assembly (CIA) counterpart. So far, the specific compound that is transported across the membrane remains unknown. In this report we characterized the ABCB7-like transporter Rcc02305 in Rhodobacter capsulatus, which shares 47% amino acid sequence identity with its mitochondrial counterpart. The constructed interposon mutant strain in R. capsulatus displayed increased levels of intracellular reactive oxygen species without a simultaneous accumulation of the cellular iron levels. The inhibition of endogenous glutathione biosynthesis resulted in an increase of total glutathione levels in the mutant strain. Bioinformatic analysis of the amino acid sequence motifs revealed a potential aminotransferase class-V pyridoxal-50-phosphate (PLP) binding site that overlaps with the Walker A motif within the nucleotide binding domains of the transporter. PLP is a well characterized cofactor of L-cysteine desulfurases like IscS and NFS1 which has a role in the formation of a protein-bound persulfide group within these proteins. We therefore suggest renaming the ABCB7-like transporter Rcc02305 in R. capsulatus to PexA for PLP binding exporter. We further suggest that this ABC-transporter in R. capsulatus is involved in the formation and export of polysulfide species to the periplasm.
description: Postprints der Universität Potsdam : Mathematisch-Naturwissenschaftliche Reihe, 740
Blessings and Curses of Covariate Shifts: Adversarial Learning Dynamics, Directional Convergence, and Equilibria
Creators: name: Liang, Tengyuan
Publisher: name: arXiv
Year: 2022
Subjects: subject: Machine Learning (stat.ML)
subject: Machine Learning (cs.LG)
subject: Optimization and Control (math.OC)
subject: Statistics Theory (math.ST)
subject: FOS: Computer and information sciences
subject: FOS: Mathematics

description: Covariate distribution shifts and adversarial perturbations present robustness challenges to the conventional statistical learning framework: mild shifts in the test covariate distribution can significantly affect the performance of the statistical model learned based on the training distribution. The model performance typically deteriorates when extrapolation happens: namely, covariates shift to a region where the training distribution is scarce, and naturally, the learned model has little information. For robustness and regularization considerations, adversarial perturbation techniques are proposed as a remedy; however, careful study needs to be carried out about what extrapolation region adversarial covariate shift will focus on, given a learned model. This paper precisely characterizes the extrapolation region, examining both regression and classification in an infinite-dimensional setting. We study the implications of adversarial covariate shifts to subsequent learning of the equilibrium -- the Bayes optimal model -- in a sequential game framework. We exploit the dynamics of the adversarial learning game and reveal the curious effects of the covariate shift to equilibrium learning and experimental design. In particular, we establish two directional convergence results that exhibit distinctive phenomena: (1) a blessing in regression, the adversarial covariate shifts in an exponential rate to an optimal experimental design for rapid subsequent learning; (2) a curse in classification, the adversarial covariate shifts in a subquadratic rate to the hardest experimental design trapping subsequent learning.
description: 27 pages, 2 figures
The Riemannian geometry of orbit spaces. The metric, geodesics, and integrable systems
Creators: name: Alekseevsky, Dmitry
name: Kriegl, Andreas
name: Losik, Mark
name: Michor, Peter W.
Publisher: name: arXiv
Year: 2001
Subjects: subject: Differential Geometry (math.DG)
subject: Representation Theory (math.RT)
subject: Symplectic Geometry (math.SG)
subject: FOS: Mathematics
subject: 26C10, 53C22

description: We investigate the rudiments of Riemannian geometry on orbit spaces $M/G$ for isometric proper actions of Lie groups on Riemannian manifolds. Minimal geodesic arcs are length minimising curves in the metric space $M/G$ and they can hit strata which are more singular only at the end points. This is phrased as convexity result. The geodesic spray, viewed as a (strata-preserving) vector field on $TM/G$, leads to the notion of geodesics in $M/G$ which are projections under $M\to M/G$ of geodesics which are normal to the orbits. It also leads to `ballistic curves' which are projections of the other geodesics. In examples (Hermitian and symmetric matrices, and more generally polar representations) we compute their equations by singular symplectic reductions and obtain generalizations of Calogero-Moser systems with spin.
description: AmSTeX, 21 pages
Merrifieldia tridactyla
Creators: name: Ustjuzhanin, P. Ya.
name: Kovtunovich, V. N.
Publisher: name: Zenodo
Year: 2018
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Lepidoptera
Pterophoridae
Merrifieldia
Merrifieldia tridactyla

description: Merrifieldia tridactyla (Linnaeus, 1758)
NOTES. This species was recorded from Azerbaijan by Arenberger (2013).
DISTRIBUTION. Europe, the Caucasus, Turkey, Iran, Kazakhstan, Southern Ural, south of western Siberia, western Yakutia.
description: Published as part of Ustjuzhanin, P. Ya. & Kovtunovich, V. N., 2018, Fauna of plume moths (Lepidoptera: Pterophoridae) of Azerbaijan, pp. 16-24 in Far Eastern Entomologist 352 on page 23, DOI: 10.25221/fee.352.4, http://zenodo.org/record/7164067
Additional file 1: of Three-dimensional greyscale transrectal ultrasound-guidance and biopsy core preembedding for detection of prostate cancer: Dutch clinical cohort study
Creators: name: Aa, Anouk
name: Mannaerts, Christophe
name: Gayet, Maudy
name: Linden, Johannes
name: Schrier, Barthold
name: J. Sedelaar
name: Mischi, Massimo
name: Beerlage, Harrie
name: Wijkstra, Hessel
Publisher: name: figshare
Year: 2019
Subjects: subject: Space Science
subject: Medicine
subject: Cell Biology
subject: Pharmacology
subject: Biotechnology
subject: 80699 Information Systems not elsewhere classified
subject: FOS: Computer and information sciences
subject: Developmental Biology
subject: Cancer
subject: 110309 Infectious Diseases
subject: FOS: Health sciences
subject: 60506 Virology
subject: FOS: Biological sciences

description: Table S1. Univariate and multivariate logistic regression analyses of individual risk factors for detection of prostate cancer and clinically significant prostate cancer. (DOCX 14 kb)
Irani, R. M., Iyer, R., Meisenzahl, R. R., & Peydró, J.-L. (2021). The rise of shadow banking: Evidence from capital regulation. Review of Financial Studies, 34(5), 2181–2235. https://doi.org/10.1093/rfs/hhaa106
Creators: name: Peydró, José-Luis
name: Irani, Rustom
name: Iyer, Rajkamal
name: Meisenzahl, Ralf
Publisher: name: figshare
Year: 2021
Subjects: subject: 140210 International Economics and International Finance
subject: FOS: Economics and business

description: We investigate the connections between bank capital regulation and the prevalence of lightly regulated nonbanks (shadow banks) in the U.S. corporate loan market. For identification, we exploit a supervisory credit register of syndicated loans, loan-time fixed effects, and shocks to capital requirements arising from surprise features of the U.S. implementation of Basel III. We find that less-capitalized banks reduce loan retention, particularly among loans with higher capital requirements and at times when capital is scarce, and nonbanks step in. This reallocation is associated with important adverse effects during the 2008 crisis: loans funded by nonbanks with fragile liabilities are less likely to be rolled over and experience greater price volatility.
Supplementary document for Observation of Carrier Transfer in Vertical 0D-CsPbBr₃/2D-MoS₂ Mixed-Dimensional van der Waals Heterojunction - 6211259.pdf
Creators: name: Qin, Chaochao
name: Geng, Yujie
name: Zhou, Zhongpo
name: Song, Jian
name: Ma, Shuhong
name: Guangrui, Jia
name: Jiao, Zhaoyong
name: Zhu, ZunLue
name: JIANG, Y. H.
Publisher: name: Optica Publishing Group
Year: 2023
Subjects: Uncategorized

description: Supplement 1
Additional file 1: of Transforming manufacturing to be â good for planet and peopleâ , through enabling lean and green thinking in small and medium-sized enterprises
Creators: name: H. Caldera
name: C. Desha
name: L. Dawes
Publisher: name: figshare
Year: 2019
Subjects: subject: Medicine
subject: Molecular Biology
subject: Sociology
subject: FOS: Sociology
subject: Developmental Biology
subject: Science Policy
subject: Plant Biology
subject: FOS: Biological sciences

description: Interview guide. (DOCX 17 kb)
Entropy production and Lyapunov instability at the onset of turbulent convection
Creators: name: Castillo, V. M.
name: Hoover, Wm. G.
Publisher: name: arXiv
Year: 2000
Subjects: subject: Chaotic Dynamics (nlin.CD)
subject: Fluid Dynamics (physics.flu-dyn)
subject: FOS: Physical sciences

description: Computer simulations of a compressible fluid, convecting heat in two dimensions, suggest that, within a range of Rayleigh numbers, two distinctly different, but stable, time-dependent flow morphologies are possible. The simpler of the flows has two characteristic frequencies: the rotation frequency of the convecting rolls, and the vertical oscillation frequency of the rolls. Observables, such as the heat flux, have a simple-periodic (harmonic) time dependence. The more complex flow has at least one additional characteristic frequency -- the horizontal frequency of the cold, downward- and the warm, upward-flowing plumes. Observables of this latter flow have a broadband frequency distribution. The two flow morphologies, at the same Rayleigh number, have different rates of entropy production and different Lyapunov exponents. The simpler "harmonic" flow transports more heat (produces entropy at a greater rate), whereas the more complex "chaotic" flow has a larger maximum Lyapunov exponent (corresponding to a larger rate of phase-space information loss). A linear combination of these two rates is invariant for the two flow morphologies over the entire range of Rayleigh numbers for which the flows coexist, suggesting a relation between the two rates near the onset of convective turbulence.
description: 5 pages, 4 figures
Low-Temperature Series for the Square Lattice Potts Model by the Improved Finite-Lattice Method
Creators: name: Arisue, H.
name: Tabata, K.
Publisher: name: arXiv
Year: 1997
Subjects: subject: Condensed Matter (cond-mat)
subject: High Energy Physics - Lattice (hep-lat)
subject: FOS: Physical sciences

description: The low-temperature series are calculated for the free energy, magnetization and susceptibility in the Q-state Potts model on the square lattice, using the improved algorithm of the finite lattice method. The series are obtained to the order of $z^{41}$ for each of Q=5-50, and the result of their Padé type analysis is compared with those of the large-Q expansion and the Monte Carlo simulations.
description: 28 pages, LaTeX, 4 eps figures, postscript file also available at http://www2.yukawa.kyoto-u.ac.jp/~arisue/tables.html, to appear in Journal of Physics A
Exact Solutions for the Intrinsic Geometry of Black Hole Coalescence
Creators: name: Lehner, Luis
name: Bishop, Nigel T.
name: Gómez, Roberto
name: Szilágyi, Béla
name: Winicour, Jeffrey
Publisher: name: arXiv
Year: 1998
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We describe the null geometry of a multiple black hole event horizon in terms of a conformal rescaling of a flat space null hypersurface. For the prolate spheroidal case, we show that the method reproduces the pair-of-pants shaped horizon found in the numerical simulation of the head-on-collision of black holes. For the oblate case, it reproduces the initially toroidal event horizon found in the numerical simulation of collapse of a rotating cluster. The analytic nature of the approach makes further conclusions possible, such as a bearing on the hoop conjecture. From a time reversed point of view, the approach yields a description of the past event horizon of a fissioning white hole, which can be used as null data for the characteristic evolution of the exterior space-time.
description: 21 pages, 6 figures, revtex, to appear in Phys. Rev. D
Errors on the inverse problem solution for a noisy spherical gravitational wave antenna
Creators: name: Merkowitz, S. M.
name: Lobo, J. A.
name: Serrano, M. A.
Publisher: name: arXiv
Year: 1999
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: A single spherical antenna is capable of measuring the direction and polarization of a gravitational wave. It is possible to solve the inverse problem using only linear algebra even in the presence of noise. The simplicity of this solution enables one to explore the error on the solution using standard techniques. In this paper we derive the error on the direction and polarization measurements of a gravitational wave. We show that the solid angle error and the uncertainty on the wave amplitude are direction independent. We also discuss the possibility of determining the polarization amplitudes with isotropic sensitivity for any given gravitational wave source.
description: 13 pages, 4 figures, LaTeX2e, IOP style, submitted to CQG
Exploring phase space localization of chaotic eigenstates via parametric variation
Creators: name: Cerruti, Nicholas R.
name: Lakshminarayan, Arul
name: Lefebvre, Julie H.
name: Tomsovic, Steven
Publisher: name: arXiv
Year: 2000
Subjects: subject: Chaotic Dynamics (nlin.CD)
subject: FOS: Physical sciences

description: In a previous Letter [Phys. Rev. Lett. 77, 4158 (1996)], a new correlation measure was introduced that sensitively probes phase space localization properties of eigenstates. It is based on a system's response to varying an external parameter. The measure correlates level velocities with overlap intensities between the eigenstates and some localized state of interest. Random matrix theory predicts the absence of such correlations in chaotic systems whereas in the stadium billiard, a paradigm of chaos, strong correlations were observed. Here, we develop further the theoretical basis of that work, extend the stadium results to the full phase space, study the hbar-dependence, and demonstrate the agreement between this measure and a semiclassical theory based on homoclinic orbits.
description: 18 pages, 13 figures, submitted to Phys. Rev. E, companion paper
GNSS Time Synchronization in Vehicular Ad-Hoc Networks: Benefits and Feasibility
Creators: name: Hasan, Khondokar Fida
name: Feng, Yanming
name: Tian, Yu-Chu
Publisher: name: arXiv
Year: 2018
Subjects: subject: Networking and Internet Architecture (cs.NI)
subject: FOS: Computer and information sciences

description: Time synchronization is critical for the operation of distributed systems in networked environments. It is also demanded in vehicular ad-hoc networks (VANETs), which, as a special type of wireless networks, are becoming increasingly important for emerging cooperative intelligent transport systems. Global navigation satellite system (GNSS) is a proven technology to provide precise timing information in many distributed systems. It is well recognized to be the primary means for vehicle positioning and velocity determination in VANETs. However, GNSS-based time synchronization is not well understood for its role in the coordination of various tasks in VANETs. To address this issue, this paper examines the requirements, potential benefits, and feasibility of GNSS time synchronization in VANETs. The availability of GNSS time synchronization is characterized by almost 100% in our experiments in high-rise urban streets, where the availability of GNSS positioning solutions is only 80%. Experiments are also conducted to test the accuracy of time synchronization with 1-PPS signals output from consumer grade GNSS receivers. They have shown 30-ns synchronization accuracy between two receivers of different models. All these experimental results demonstrate the feasibility of GNSS time synchronization for stringent VANET applications.
description: 10 pages
Scatomyza FALLEN 1810
Creators: name: Ozerov, A. L.
name: Krivosheina, M. G.
Publisher: name: Zenodo
Year: 2018
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Diptera
Scathophagidae
Scatomyza

description: Key to species of the genus Scatomyza of Nepal
 1. Scutellum with a pair of strong basal setae and a pair of small apical scutellar setae. Proepisternum with 1 strong seta. Male sternites 4 and 5 (Fig. 2). Cerci and surstyli (Figs 3, 4) …...............................……………… S. curtipilata Feng
– Scutellum with two pairs of strong setae, basal and apical. Proepisternum covered with hairs near lower margin, without strong seta …………………………..… 2
 2. Abdomen shining or subshining, without grey dust. Male sternite 5 (Fig. 19). Cerci and surstyli (Figs 20, 21) ……………………..………….. S. sinensis Sun
– Abdomen densely grey dusted..………………………………………………… 3
 3. Tibiae of all legs black, grey dusted. Male sternites 4 and 5 (Fig. 6). Cerci and surstyli (Figs 7, 8) ……………………….…………………. S. medvedevi sp. n.
– Tibiae of all legs yellow..……………………………………………………..… 4
 4. Mid and hind femora black, grey dusted. Scutum with densely black stripe between dorsocentral rows (Figs 12, 13). Male sternites 4 and 5 (Fig. 15). Cerci and surstyli (Figs 16, 17) ……………............................... S. nigrolineata sp. n.
 – Mid and hind femora yellow. Scutum more or less unicolor, with four indistinctly brownish stripes. Male sternites 4 and 5 (Fig. 9). Cerci and surstyli (Figs 10, 11)........................................................................................... S. mellipes Coquillett
description: Published as part of Ozerov, A. L. & Krivosheina, M. G., 2018, To the knowledge of the genus Scatomyza Fallén, 1810 (Diptera: Scathophagidae) of Nepal, pp. 1-16 in Far Eastern Entomologist 353 on page 14, DOI: 10.25221/fee.353.1, http://zenodo.org/record/7164040
MILLIY IQTISODIYOT TARMOQLARIDA SUN'IY INTELLEKTNING ISH BOZORINI QAYTA TUZISHDAGI YETAKCHI KUCHLARI
Creators: name: Bahromova, Dilnavoz
name: Almirzayeva, Laziza
Publisher: name: Zenodo
Year: 2024

description: Maqolada O‘zbekiston milliy iqtisodiyotidagi turli tarmoqlarda sun’iy intellekt texnologiyalarining ish bozoriga ta’siri va uni qayta shakllantirishdagi yetakchi kuchlari tahlil qilindi.Maqolada sun’iy intellektning ish joylarini avtomatizatsiya qilish, yangi kasblarni yaratish,ish samaradorligini oshirish va xodimlarning malakasini yuksaltirishdagi roli o‘rganildi.Shuningdek ,maqolada O‘zbekistonning turli tarmoqlarida, xususan, qishloq xo‘jaligi,sanoat, moliya, turizm va ta’limda sun‘iy intellektning ish bozoriga tahlil qilindi.
Far-infrared edge modes in quantum dots
Creators: name: Lipparini, E.
name: Barberan, N.
name: Barranco, M.
name: Pi, M.
name: Serra, Ll.
Publisher: name: arXiv
Year: 1997
Subjects: subject: Condensed Matter (cond-mat)
subject: FOS: Physical sciences

description: We have investigated edge modes of different multipolarity sustained by quantum dots submitted to external magnetic fields. We present a microscopic description based on a variational solution of the equation of motion for any axially symmetric confining potential and multipole mode. Numerical results for dots with different number of electrons whose ground-state is described within a local Current Density Functional Theory are discussed. Two sum rules, which are exact within this theory, are derived. In the limit of a large neutral dot at B=0, we have shown that the classical hydrodynamic dispersion law for edge waves ω(q) \sim \sqrt{q \ln (q_0/q)} holds when quantum and finite size effects are taken into account.
description: We have changed some figures as well as a part of the text
Strong unique continuation for second order hyperbolic equations with time independent coefficients
Creators: name: Vessella, Sergio
Publisher: name: arXiv
Year: 2019
Subjects: subject: Analysis of PDEs (math.AP)
subject: FOS: Mathematics
subject: 35R25, 35L, Secondary 35B60, 35R30

description: In this paper we prove that if $u$ is a solution to second order hyperbolic equation $\partial^2_tu+a(x)\partial_tu-(div_x\left(A(x)\nabla_x u\right)+b(x)\cdot\nabla_x u+c(x)u)=0$ and $u$ is flat on a segment $\{x_0\}\times (-T,T)$ then $u$ vanishes in a neighborhood of $\{x_0\}\times (-T,T)$.
Tabulaephorus decipiens
Creators: name: Ustjuzhanin, P. Ya.
name: Kovtunovich, V. N.
Publisher: name: Zenodo
Year: 2018
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Lepidoptera
Pterophoridae
Tabulaephorus
Tabulaephorus decipiens

description: Tabulaephorus decipiens (Lederer, 1870)
NOTES. This species was recorded from Azerbaijan by Arenberger (2013).
DISTRIBUTION. Iran, Kyrgyzstan, Azerbaijan, Armenia, Tajikistan.
description: Published as part of Ustjuzhanin, P. Ya. & Kovtunovich, V. N., 2018, Fauna of plume moths (Lepidoptera: Pterophoridae) of Azerbaijan, pp. 16-24 in Far Eastern Entomologist 352 on page 22, DOI: 10.25221/fee.352.4, http://zenodo.org/record/7164067
Two-step estimators of high dimensional correlation matrices
Creators: name: García-Medina, Andrés
name: Miccichè, Salvatore
name: Mantegna, Rosario N.
Publisher: name: arXiv
Year: 2022
Subjects: subject: Methodology (stat.ME)
subject: Physics and Society (physics.soc-ph)
subject: FOS: Computer and information sciences
subject: FOS: Physical sciences

description: We investigate block diagonal and hierarchical nested stochastic multivariate Gaussian models by studying their sample cross-correlation matrix on high dimensions. By performing numerical simulations, we compare a filtered sample cross-correlation with the population cross-correlation matrices by using several rotationally invariant estimators (RIE) and hierarchical clustering estimators (HCE) under several loss functions. We show that at large but finite sample size, sample cross-correlation filtered by RIE estimators are often outperformed by HCE estimators for several of the loss functions. We also show that for block models and for hierarchically nested block models the best determination of the filtered sample cross-correlation is achieved by introducing two-step estimators combining state-of-the-art non-linear shrinkage models with hierarchical clustering estimators.
description: 14 pages, 6 figures, 6 tables
Totally Positive Functions and Gabor Frames over Rational Lattices
Creators: name: Gröchenig, Karlheinz
Publisher: name: arXiv
Year: 2023
Subjects: subject: Functional Analysis (math.FA)
subject: FOS: Mathematics
subject: 42C15, 42C40, 94A20, 42A82

description: We show that for an arbitrary totally positive function $g\in L^1(\mathbb{R} )$ and
 $αβ$ rational, the Gabor family $\{e^{2πi βl
 t} g(t-αk): k,l \in \mathbb{Z} \}$ is a frame for $L^2(\mathbb{R})$, if and only if $αβ<1$.
description: 11 pages
Operators near completely polynomially dominated ones and similarity problems
Creators: name: Badea, C.
Publisher: name: arXiv
Year: 2001
Subjects: subject: Functional Analysis (math.FA)
subject: FOS: Mathematics
subject: 47A30 ; 46L07

description: Let T and C be two Hilbert space operators. We prove that if T is near, in a certain sense, to an operator completely polynomially dominated with a finite bound by C, then T is similar to an operator which is completely polynomially dominated by the direct sum of C and a suitable weighted unilateral shift. Among the applications, a refined Banach space version of Rota similarity theorem is given and partial answers to a problem of K. Davidson and V. Paulsen are obtained. The latter problem concerns CAR-valued Foguel-Hankel operators which are generalizations of the operator considered by G. Pisier in his example of a polynomial bounded operator not similar to a contraction.
description: 22 pages
Electronic Supplementary Material from Nitrogen and chlorine co-doped carbon dots as probe for sensing and imaging in biological samples
Creators: name: Li, Jin
name: Tang, Kai
name: Yu, Jianxin
name: wang, Hanqin
name: Tu, Mingli
name: Wang, Xiaobo
Publisher: name: The Royal Society
Year: 2019

description: A facile one-step hydrothermal synthesis approach was proposed to prepare nitrogen and chlorine co-doped carbon dots (CDs) using l-ornithine hydrochloride as the sole precursor. The configuration and component of CDs were characterized by transmission electron microscopy and X-ray photoelectron and Fourier transform infrared spectroscopies. The obtained CDs (Orn-CDs) with a mean diameter of 2.1 nm were well monodispersed in aqueous solutions. The as-prepared CDs exhibited a bright blue fluorescence with a high yield of 60%, good photostability and low cytotoxicity. The emission of Orn-CDs could be selectively and effectively suppressed by Fe3+. Thus, a quantitative assay of Fe3+ was realized by this nanoprobe with a detection limit of 95.6 nmol l−1 in the range of 0.3–50 µmol l−1. Furthermore, ascorbic acid could recover the fluorescence of Orn-CDs suppressed by Fe3+, owing to the transformation of Fe3+ to Fe2+ by ascorbic acid. The limit of detection for ascorbic acid was 137 nmol l−1 in the range of 0.5–10 µmol l−1. In addition, the established method was successfully applied for Fe3+ and ascorbic acid sensing in human serum and urine specimens and for imaging of Fe3+ in living cells. Orn-CD-based sensing platform showed its potential to be used for biomedicine-related study because it is cost-effective, easily scalable and can be used without additional functionaliation and sample pre-treatment.
MOESM1 of Prevalence, infection intensity and associated factors of soil transmitted helminths among primary school children in Gurage zone, South Central Ethiopia: a cross-sectional study design
Creators: name: Habtamu Weldesenbet
name: Abdulsemed Worku
name: Teha Shumbej
Publisher: name: figshare
Year: 2019
Subjects: subject: Biotechnology
subject: 59999 Environmental Sciences not elsewhere classified
subject: FOS: Earth and related environmental sciences
subject: 69999 Biological Sciences not elsewhere classified
subject: FOS: Biological sciences
subject: Science Policy
subject: 110309 Infectious Diseases
subject: FOS: Health sciences
subject: Computational Biology

description: Additional file 1. Prevalence of soil-transmitted helminths among school children in Gurage zone Southern Ethiopia (January to December 30, 2017) (N = 600).
Minimal-Time Synthesis for Parametric Timed Automata
Creators: name: André, Étienne
name: Bloemen, Vincent
name: Petrucci, Laure
name: van de Pol, Jaco
Publisher: name: arXiv
Year: 2019
Subjects: subject: Logic in Computer Science (cs.LO)
subject: FOS: Computer and information sciences

description: Parametric timed automata (PTA) extend timed automata by allowing parameters in clock constraints. Such a formalism is for instance useful when reasoning about unknown delays in a timed system. Using existing techniques, a user can synthesize the parameter constraints that allow the system to reach a specified goal location, regardless of how much time has passed for the internal clocks. We focus on synthesizing parameters such that not only the goal location is reached, but we also address the following questions: what is the minimal time to reach the goal location? and for which parameter values can we achieve this? We analyse the problem and present an algorithm that solves it. We also discuss and provide solutions for minimizing a specific parameter value to still reach the goal. We empirically study the performance of these algorithms on a benchmark set for PTAs and show that minimal-time reachability synthesis is more efficient to compute than the standard synthesis algorithm for reachability.
description: Author version of the paper of the same name published in the proceedings of the 25th International Conference on Tools and Algorithms for the Construction and Analysis of Systems (TACAS 2019)
Additional file 3: of Decarboxylation mechanisms of C4 photosynthesis in Saccharum spp.: increased PEPCK activity under water-limiting conditions
Creators: name: Cacefo, Viviane
name: Ribas, Alessandra
name: Zilliani, Rafael
name: Neris, Daniel
name: Domingues, Douglas
name: Moro, Adriana
name: Luiz Vieira
Publisher: name: figshare
Year: 2019
Subjects: subject: Biochemistry
subject: Cell Biology
subject: Molecular Biology
subject: Physiology
subject: FOS: Biological sciences
subject: 59999 Environmental Sciences not elsewhere classified
subject: FOS: Earth and related environmental sciences
subject: Ecology
subject: Developmental Biology
subject: Inorganic Chemistry
subject: FOS: Chemical sciences
subject: Plant Biology

description: Figure S3. Differences in leaf anatomy of C4 NADP-ME and PEPCK species. Abbreviations: MC - mesophyll cells; BS - bundle sheath; VB - vascular bundle; MS - mestome sheath. A. NADP-ME species show suberized BS, absence of MS and centrifugally arranged chloroplasts. B. PEPCK species have BS and MS suberized and chloroplasts show variable placement. (PDF 283 kb)
Quantum Flux from a Moving Spherical Mirror
Creators: name: Anderson, Warren G.
name: Israel, Werner
Publisher: name: arXiv
Year: 1999
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We calculate the flux from a spherical mirror which is expanding or contracting with nearly uniform acceleration. We find that the flux at an exterior point (which could in principle be a functional of the mirror's past history) is actually found to be a local function, depending on the first and second time derivatives of acceleration at the retarded time.
description: 13 pages, 2 figures, RevTex, submitted to Phys. Rev. D
Spinons and parafermions in fermion cosets
Creators: name: Cabra, D. C.
Publisher: name: arXiv
Year: 1997
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Condensed Matter (cond-mat)
subject: FOS: Physical sciences

description: We introduce a set of gauge invariant fermion fields in fermionic coset models and show that they play a very central role in the description of several Conformal Field Theories (CFT's). In particular we discuss the explicit realization of primaries and their OPE in unitary minimal models, parafermion fields in $Z_k$ CFT's and that of spinon fields in $SU(N)_k, k=1$ Wess-Zumino-Witten models (WZW) theories. The higher level case ($k>1$) will be briefly discussed. Possible applications to QHE systems and spin-ladder systems are addressed.
description: 6 pages, Latex file. Invited talk at International Seminar dedicated to the memory of D.V.Volkov, Kharkov, January 5-7, 1997
Fast Bayesian tomography of a two-qubit gate set in silicon
Creators: name: Evans, T. J.
name: Huang, W.
name: Yoneda, J.
name: Harper, R.
name: Tanttu, T.
name: Chan, K. W.
name: Hudson, F. E.
name: Itoh, K. M.
name: Saraiva, A.
name: Yang, C. H.
name: Dzurak, A. S.
name: Bartlett, S. D.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Benchmarking and characterising quantum states and logic gates is essential in the development of devices for quantum computing. We introduce a Bayesian approach to self-consistent process tomography, called fast Bayesian tomography (FBT), and experimentally demonstrate its performance in characterising a two-qubit gate set on a silicon-based spin qubit device. FBT is built on an adaptive self-consistent linearisation that is robust to model approximation errors. Our method offers several advantages over other self-consistent tomographic methods. Most notably, FBT can leverage prior information from randomised benchmarking (or other characterisation measurements), and can be performed in real time, providing continuously updated estimates of full process matrices while data is acquired.
description: 10 pages + 6 page appendix, 6 figures, comments welcome
Entanglement Rényi Entropies from Ballistic Fluctuation Theory: the free fermionic case
Creators: name: Del Vecchio, Giuseppe Del Vecchio
name: Doyon, Benjamin
name: Ruggiero, Paola
Publisher: name: arXiv
Year: 2023
Subjects: subject: Quantum Physics (quant-ph)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: The large-scale behaviour of entanglement entropy in finite-density states, in and out of equilibrium, can be understood using the physical picture of particle pairs. However, the full theoretical origin of this picture is not fully established yet. In this work, we clarify this picture by investigating entanglement entropy using its connection with the large-deviation theory for thermodynamic and hydrodynamic fluctuations. We apply the universal framework of Ballistic Fluctuation Theory (BFT), based the Euler hydrodynamics of the model, to correlation functions of \emph{branch-point twist fields}, the starting point for computing Rényi entanglement entropies within the replica approach. Focusing on free fermionic systems in order to illustrate the ideas, we show that both the equilibrium behavior and the dynamics of Rényi entanglement entropies can be fully derived from the BFT. In particular, we emphasise that long-range correlations develop after quantum quenches, and accounting for these explain the structure of the entanglement growth. We further show that this growth is related to fluctuations of charge transport, generalising to quantum quenches the relation between charge fluctuations and entanglement observed earlier. The general ideas we introduce suggest that the large-scale behaviour of entanglement has its origin within hydrodynamic fluctuations.
description: 53 pages, 2 figures
Critical sets of nonlinear Sturm-Liouville operators of Ambrosetti-Prodi type
Creators: name: Bueno, H.
name: Tomei, C.
Publisher: name: arXiv
Year: 2001
Subjects: subject: Functional Analysis (math.FA)
subject: FOS: Mathematics
subject: 34L30; 34A26

description: The critical set C of the operator F:H^2_D([0,pi]) -> L^2([0,pi]) defined by F(u)=-u''+f(u) is studied. Here X:=H^2_D([0,pi]) stands for the set of functions that satisfy the Dirichlet boundary conditions and whose derivatives are in L^2([0,pi]). For generic nonlinearities f, C=\cup C_k decomposes into manifolds of codimension 1 in X. If f''<0 or f''>0, the set C_j is shown to be non-empty if, and only if, -j^2 (the j-th eigenvalue of u -> u'') is in the range of f'. The critical components C_k are (topological) hyperplanes.
description: 6 pages, no figures
Phase space localization of chaotic eigenstates: Violating ergodicity
Creators: name: Lakshminarayan, Arul
name: Cerruti, Nicholas R.
name: Tomsovic, Steven
Publisher: name: arXiv
Year: 2000
Subjects: subject: Chaotic Dynamics (nlin.CD)
subject: FOS: Physical sciences

description: The correlation between level velocities and eigenfunction intensities provides a new way of exploring phase space localization in quantized non-integrable systems. It can also serve as a measure of deviations from ergodicity due to quantum effects for typical observables. This paper relies on two well known paradigms of quantum chaos, the bakers map and the standard map, to study correlations in simple, yet chaotic, dynamical systems. The behaviors are dominated by the presence of several classical structures. These primarily include short periodic orbits and their homoclinic excursions. The dependences of the correlations deriving from perturbations allow for eigenfunction features violating ergodicity to be selectively highlighted. A semiclassical theory based on periodic orbit sums leads to certain classical correlations that are super-exponentially cut off beyond a logarithmic time scale. The theory is seen to be quite successful in reproducing many of the quantum localization features.
description: 12 pages, 12 figures, submitted to Phys. Rev. E, companion paper
Gain of regularity for a coupled system of generalized nonlinear Schrödinger equations
Creators: name: Mollisaca, Raul Nina
name: Cortés, Mauricio Sepúlveda
name: Asem, Rodrigo Véjar
name: Villagrán, Octavio Vera
Publisher: name: arXiv
Year: 2023
Subjects: subject: Analysis of PDEs (math.AP)
subject: FOS: Mathematics
subject: 35Q53 (Primary), 47J353 (Secondary)

description: In this paper we study the smoothness properties of solutions to a one-dimensional coupled nonlinear Schrödinger system equations that describes some physical phenomena such as propagation of polarized laser beams in birefringent Kerr medium in nonlinear optics. We show that the equations dispersive nature leads to a gain in regularity for the solution. In particular, if the initial data $(u_{0},\,v_{0})$ possesses certain regularity and sufficient decay as $|x|\rightarrow\infty,$ then the solution $(u(t),\,v(t))$ will be smoother than $(u_{0},\,v_{0})$ for $0 < t \leq T$ where $T$ is the existence time of the solution.
description: arXiv admin note: text overlap with arXiv:nlin/0103012 by other authors
Additional file 2: of Decarboxylation mechanisms of C4 photosynthesis in Saccharum spp.: increased PEPCK activity under water-limiting conditions
Creators: name: Cacefo, Viviane
name: Ribas, Alessandra
name: Zilliani, Rafael
name: Neris, Daniel
name: Domingues, Douglas
name: Moro, Adriana
name: Luiz Vieira
Publisher: name: figshare
Year: 2019
Subjects: subject: Biochemistry
subject: Space Science
subject: 59999 Environmental Sciences not elsewhere classified
subject: FOS: Earth and related environmental sciences
subject: Ecology
subject: FOS: Biological sciences
subject: 69999 Biological Sciences not elsewhere classified
subject: Developmental Biology
subject: Plant Biology

description: Figure S2. Cycles of quantification (Cq) of genes of the C4 pathway for the tolerant (RB92579) and susceptible (SP80–3280) sugarcane plants under the different water deficit regimes (12 replicates). The Boxplot chart shows the median values as rows in the box. The lower and upper boxes indicate quartiles 1 and 3, respectively. The bars represent the upper and lower limits. (PDF 242 kb)
Effect of surface oxidation on electron spin coherence of single nitrogen-vacancy centers in nanodiamonds
Creators: name: Tsukahara, Ryuta
name: Fujiwara, Masazumi
name: Sera, Yoshihiko
name: Nishimura, Yushi
name: Sugai, Yuko
name: Jentgens, Christian
name: Teki, Yoshio
name: Hashimoto, Hideki
name: Shikata, Shinichi
Publisher: name: arXiv
Year: 2018
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Fluorescent nanodiamonds (NDs) are crystal defect-based light-emitting nanoparticles that can be applied to quantum information science and quantum sensing. Of particular interest are nitrogen vacancy (NV) centers that allow optical access to their coherently controllable electron spin systems, leading to spin-photon quantum devices and nanoscale sensing of various physical parameters. However, the NV spin coherence time (T2) in NDs has been limited to one or two orders of magnitude shorter than those in bulk diamonds owing to the complicated surface effect that decoheres the NV spin systems. Here, we study the relation between the surface properties and T2 of single NV centers in NDs by systematically analyzing the effect of surface oxidation. We apply aerobic and acidic oxidation methods with various heating temperatures and processing times and find that aerobic oxidation most effectively oxidizes the surface and extends T2 by a factor of 1.6 to the original NDs. The ND-size dependence of T2 clearly shows that the surface oxidation removes a constant decoherence contribution irrespective of the ND size and that a new surface derived decoherence source emerges when the ND size reduces below 50 nm. The present results provide quantitative information on the decoherence sources of NV spin systems of NDs and will enable a strategic surface modification for better spin manipulations of NV centers in the context of quantum information science and nanoscale quantum sensing.
Wheeleria kabuli
Creators: name: Ustjuzhanin, P. Ya.
name: Kovtunovich, V. N.
Publisher: name: Zenodo
Year: 2018
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Lepidoptera
Pterophoridae
Wheeleria
Wheeleria kabuli

description: Wheeleria kabuli (Arenberger, 1981)
NOTES. This species was recorded from Azerbaijan by Gielis (2003).
DISTRIBUTION. Afghanistan, Azerbaijan, Iran.
description: Published as part of Ustjuzhanin, P. Ya. & Kovtunovich, V. N., 2018, Fauna of plume moths (Lepidoptera: Pterophoridae) of Azerbaijan, pp. 16-24 in Far Eastern Entomologist 352 on page 23, DOI: 10.25221/fee.352.4, http://zenodo.org/record/7164067
The Role of Platform Brand in the Association Between Social Media Use, Stress and Educational Attainment
Creators: name: Tibber, Marc S.
name: Wang, Minglei
name: Zhang, Chan
Publisher: name: Taylor & Francis
Year: 2022
Subjects: subject: Biotechnology
subject: Ecology
subject: FOS: Biological sciences
subject: Biological Sciences not elsewhere classified
subject: Inorganic Chemistry
subject: FOS: Chemical sciences
subject: Science Policy
subject: Mental Health

description: According to the Uses and Gratifications theory and Transformation Framework, social media users are drawn to different platforms according to platform affordances and motivations for use, with potential implications for wellbeing and functional outcomes. However, most research uses single- or cross-platform data. We tested the hypothesis, therefore, that the use of different social media platforms differentially predicts outcomes. Using undergraduate survey data (n = 3500+) regression analyses explored associations between time spent on eight common platforms and perceived stress and GPA scores. Platforms were also rated on design features using the Transformation Framework in order to identify potential affordance-outcome links. Our hypothesis was supported: platforms showed differential patterns of association (positive and negative) with stress and GPA, with little overlap in patterns of association with the two outcome variables. These findings suggest platforms should not be treated as a homogenous phenomenon, and implicate independent mechanisms underlying social media, wellbeing and attainment links.
No-scalar hair conjecture in asymptotic de-Sitter spacetime
Creators: name: Torii, T.
name: Meeda, K.
name: Narita, M.
Publisher: name: arXiv
Year: 1998
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We discuss the no-hair conjecture in the presence of a cosmological constant. For the firststep the real scalar field is considered as the matter field and the spacetime is assumed to be static spherically symmetric. If the scalar field is massless or has a convex potential such as a mass term, it is proved that there is no regular black hole solution. For a general positive potential, we search for black hole solutions which support the scalar field with a double well potential, and find them by numerical calculations. The existence of such solutions depends on the values of the vacuum expectation value and the self-coupling constant of the scalar field. When we take the zero horizon radius limit, the solution becomes a boson star like solution which we found before. However new solutions are found to be unstable against the linear perturbation. As a result we can conclude that the no-scalar hair conjecture holds in the case of scalar fields with a convex or double well potential.
description: 9 pages, 2 Postscript figures
Spectral functions of nucleon form factors: Three-pion continua at low energies
Creators: name: Kaiser, N.
name: Passemar, E.
Publisher: name: arXiv
Year: 2019
Subjects: subject: Nuclear Theory (nucl-th)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We study the imaginary parts of the isoscalar electromagnetic and isovector axial form factors of the nucleon close to the $3π$-threshold in covariant baryon chiral perturbation theory. At the two-loop level, the contributions arising from leading and next-to-leading order chiral $πN$-vertices, as well as pion-induced excitations of virtual $Δ(1232)$-isobars, are calculated. It is found that the heavy baryon treatment overestimates substantially these $3π$-continua. From a phenomenological analysis, that includes the narrow $ω(783)$-resonance or the broad $a_1$-resonance, one can recognize small windows near threshold, where chiral $3π$-dynamics prevails. However, in the case of the isoscalar electromagnetic form factors $G_{E,M}^s(t)$, the radiative correction provided by the $π^0γ$-intermediate state turns out to be of similar size.
description: 12 pages, 9 figures, accepted for publication in Eur. Phys. J. A