cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Convolutional Neural Networks for Searching Superflares from Pixel-level Data of the Transiting Exoplanet Survey Satellite
Creators: name: Tu, Zuo-Lin
name: Wu, Qin
name: Wang, Wenbo
name: Zhang, G. Q.
name: Liu, Zi-Ke
name: Wang, F. Y.
Publisher: name: arXiv
Year: 2022
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: FOS: Physical sciences

description: In this work, six convolutional neural networks (CNNs) have been trained based on %different feature images and arrays from the database including 15,638 superflare candidates on solar-type stars, which are collected from the three-years observations of Transiting Exoplanet Survey Satellite ({\em TESS}). These networks are used to replace the artificially visual inspection, which was a direct way to search for superflares, and exclude false positive events in recent years. Unlike other methods, which only used stellar light curves to search superflare signals, we try to identify superflares through {\em TESS} pixel-level data with lower risks of mixing false positive events, and give more reliable identification results for statistical analysis. The evaluated accuracy of each network is around 95.57\%. After applying ensemble learning to these networks, stacking method promotes accuracy to 97.62\% with 100\% classification rate, and voting method promotes accuracy to 99.42\% with relatively lower classification rate at 92.19\%. We find that superflare candidates with short duration and low peak amplitude have lower identification precision, as their superflare-features are hard to be identified. The database including 71,732 solar-type stars and 15,638 superflare candidates from {\em TESS} with corresponding feature images and arrays, and trained CNNs in this work are public available.
description: Published in ApJ, 27 pages, 11 figures, 3 tables
Flood risk map from hydrological and mobility data: a case study in São Paulo (Brazil)
Creators: name: Tomás, Lívia Rodrigues
name: Soares, Giovanni Guarnieri
name: Jorge, Aurelienne A. S.
name: Mendes, Jeferson Feitosa
name: Freitas, Vander L. S.
name: Santos, Leonardo B. L.
Publisher: name: arXiv
Year: 2022
Subjects: subject: Physics and Society (physics.soc-ph)
subject: FOS: Physical sciences

description: Cities increasingly face flood risk primarily due to extensive changes of the natural land cover to built-up areas with impervious surfaces. In urban areas, flood impacts come mainly from road interruption. This paper proposes an urban flood risk map from hydrological and mobility data, considering the megacity of São Paulo, Brazil, as a case study. We estimate the flood susceptibility through the Height Above the Nearest Drainage algorithm; and the potential impact through the exposure and vulnerability components. We aggregate all variables into a regular grid and then classify the cells of each component into three classes: Moderate, High, and Very High. All components, except the flood susceptibility, have few cells in the Very High class. The flood susceptibility component reflects the presence of watercourses, and it has a strong influence on the location of those cells classified as Very High.
description: 22 pages, 20 figures
Full Statistics of Nonstationary Heat Transfer in the Kipnis-Marchioro-Presutti Model
Creators: name: Bettelheim, Eldad
name: Smith, Naftali R.
name: Meerson, Baruch
Publisher: name: arXiv
Year: 2022
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Mathematical Physics (math-ph)
subject: Probability (math.PR)
subject: Exactly Solvable and Integrable Systems (nlin.SI)
subject: FOS: Physical sciences
subject: FOS: Mathematics

description: We investigate non-stationary heat transfer in the Kipnis-Marchioro-Presutti (KMP) lattice gas model at long times in one dimension when starting from a localized heat distribution. At large scales this initial condition can be described as a delta-function, $u(x,t=0)=W δ(x)$. We characterize the process by the heat, transferred to the right of a specified point $x=X$ by time $T$, $$ J=\int_X^\infty u(x,t=T)\,dx\,, $$ and study the full probability distribution $\mathcal{P}(J,X,T)$. The particular case of $X=0$ has been recently solved [Bettelheim \textit{et al}. Phys. Rev. Lett. \textbf{128}, 130602 (2022)]. At fixed $J$, the distribution $\mathcal{P}$ as a function of $X$ and $T$ has the same long-time dynamical scaling properties as the position of a tracer in a single-file diffusion. Here we evaluate $\mathcal{P}(J,X,T)$ by exploiting the recently uncovered complete integrability of the equations of the macroscopic fluctuation theory (MFT) for the KMP model and using the Zakharov-Shabat inverse scattering method. We also discuss asymptotics of $\mathcal{P}(J,X,T)$ which we extract from the exact solution, and also obtain by applying two different perturbation methods directly to the MFT equations.
description: 23 pages, 6 figures
Additional file 3: of Quantification of porcine myocardial perfusion with modified dual bolus MRI – a prospective study with a PET reference
Creators: name: Husso, Minna
name: Nissi, Mikko
name: Kuivanen, Antti
name: Halonen, Paavo
name: Tarkia, Miikka
name: Teuho, Jarmo
name: Saunavaara, Virva
name: Vainio, Pauli
name: Sipola, Petri
name: Manninen, Hannu
name: Ylä-Herttuala, Seppo
name: Knuuti, Juhani
name: Töyräs, Juha
Publisher: name: Figshare
Year: 2019
Subjects: subject: Space Science
subject: 29999 Physical Sciences not elsewhere classified
subject: FOS: Physical sciences
subject: Medicine
subject: Cell Biology
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: Sociology
subject: FOS: Sociology
subject: 69999 Biological Sciences not elsewhere classified
subject: FOS: Biological sciences
subject: Science Policy

description: Recalculated mean values of MBF, when data of pig #2 rest study is excluded. (PDF 6 kb)
title: Resonancias del Quijote en el siglo XXI 4
Creators: name: Tecnológico de Monterrey
Publisher: name: Tecnológico de Monterrey
publisherIdentifier: https://ror.org/03ayjn504
publisherIdentifierScheme: ROR
Year: 2024
Subjects: classificationCode: 6.2
subject: FOS: Languages and literature

description: Este 2024, el programa Pasión por la Lectura, iniciativa de la Cátedra Alfonso Reyes del Tecnológico de Monterrey, ha elegido como libro del año al emblemático El ingenioso hidalgo Don Quijote de la Mancha. Con orgullo se presenta el XXI capítulo de la primera parte prologado por Enriqueta Guadalupe del Río Martínez, profesora del Campus Monterrey.
Diagnostic Accuracy of the Child and Adolescent Symptom Inventory (CASI- 4R) Substance Use Subscale in Detecting Substance Use Disorders in Youths
Creators: name: Tsai, Angelina Pei-Tzu
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2021

description: It is vital to identify SUDs early and accurately: they are among the biggest contributors to impairment in teens and young adults. Previous studies have investigated validity and reliability of the CASI-4R for anxiety, mood, and behavior problems. We hypothesize that these scales can discriminate teens and young adults with and without SUDs to justify clinical application within an evidence-based assessment framework. N=484 outpatient adolescents and their caregivers completed K-SADS-PL+ semi-structured diagnostic interviews. Caregivers did the CASI-4R caregiver report and teens did the Youth Inventory (YI). K-SADS-PL+ indicated that 33 youths met DSM-IV criteria for SUDs. Receiver Operating Characteristics (ROC) estimated likelihood of having SUDs based on substance use scores of caregiver and YI report. Both subscales significantly identified SUDs in adolescents (Caregiver [AUCs] = .90, p < .0005; YI [AUCs] = .91, p < .0005). Both subscales appear to have diagnostic and clinical utility in identifying SUDs current settings.
Electrostatic and Magnetic Fields in Bilayer Graphene
Creators: name: Jellal, Ahmed
name: Redouani, Ilham
name: Bahlouli, Hocine
Publisher: name: arXiv
Year: 2014
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We compute the transmission probability through rectangular potential barriers and p-n junctions in the presence of a magnetic and electric fields in bilayer graphene taking into account contributions from the full four bands of the energy spectrum. For energy $E$ higher than the interlayer coupling $γ_1$ ($E > γ_1$) two propagation modes are available for transport giving rise to four possible ways for transmission and reflection coefficients. However, when the energy is less than the height of the barrier the Dirac fermions exhibit transmission resonances and only one mode of propagation is available for transport. We study the effect of the interlayer electrostatic potential denoted by $δ$ and variations of different barrier geometry parameters on the transmission probability.
description: 18 pages, 11 figures
The harmonic mean $χ^2$ test to substantiate scientific findings
Creators: name: Held, Leonhard
Publisher: name: arXiv
Year: 2019
Subjects: subject: Methodology (stat.ME)
subject: FOS: Computer and information sciences

description: Statistical methodology plays a crucial role in drug regulation. Decisions by the FDA or EMA are typically made based on multiple primary studies testing the same medical product, where the two-trials rule is the standard requirement, despite a number of shortcomings. A new approach is proposed for this task based on the (weighted) harmonic mean of the squared study-specific test statistics. Appropriate scaling ensures that, for any number of independent studies, the null distribution is a $χ^2$-distribution with one degree of freedom. This gives rise to a new method for combining one-sided $p$-values and calculating confidence intervals for the overall treatment effect. Further properties are discussed and a comparison with the two-trials rule is made, as well as with alternative research synthesis methods. An attractive feature of the new approach is that a claim of success requires each study to be convincing on its own to a certain degree depending on the overall significance level and the number of studies. A real example with 5 clinical trials investigating the effect of Carvedilol for the treatment of patients with moderate to severe heart failure patients is used to illustrate the methodology.
description: Final version, to be published in JRSSC
Reverse engineering of one-qubit filter functions with dynamical invariants
Creators: name: Colmenar, R. K. L.
name: Kestner, J. P.
Publisher: name: arXiv
Year: 2022
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We derive an integral expression for the filter-transfer function of an arbitrary one-qubit gate through the use of dynamical invariant theory and Hamiltonian reverse engineering. We use this result to define a cost function which can be efficiently optimized to produce one-qubit control pulses that are robust against specified frequency bands of the noise power spectral density. We demonstrate the utility of our result by generating optimal control pulses that are designed to suppress broadband detuning and pulse amplitude noise. We report an order of magnitude improvement in gate fidelity in comparison with known composite pulse sequences. More broadly, we also use the same theoretical framework to prove the robustness of nonadiabatic geometric quantum gates under specific error models and control constraints.
description: 10 pages, 4 figures
On instruction sets for Boolean registers in program algebra
Creators: name: Bergstra, J. A.
name: Middelburg, C. A.
Publisher: name: arXiv
Year: 2015
Subjects: subject: Programming Languages (cs.PL)
subject: FOS: Computer and information sciences
subject: F.1.1; F.1.3

description: In previous work carried out in the setting of program algebra, including work in the area of instruction sequence size complexity, we chose instruction sets for Boolean registers that contain only instructions of a few of the possible kinds. In the current paper, we study instruction sequence size bounded functional completeness of all possible instruction sets for Boolean registers. We expect that the results of this study will turn out to be useful to adequately assess results of work that is concerned with lower bounds of instruction sequence size complexity.
description: 18 pages, the preliminaries are largely the same as the preliminaries in arXiv:1402.4950 [cs.PL] and some earlier papers; 21 pages, presentation improved
Monatractides parviventris K. Viets 1935
Creators: name: Pešić, Vladimir
name: Chatterjee, Tapas
name: Bordoloi, Sabitry
Publisher: name: Zenodo
Year: 2010
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Arachnida
Trombidiformes
Torrenticolidae
Monatractides
Monatractides parviventris

description: Monatractides parviventris (K. Viets, 1935)
Records from the study area: Tamil Nadu, Maharashtra—“ Toorenticola (Monatractides) pusta “ Cook (1967); Prasad (1974); Pešić & Smit (2009b).
Habitat: Streams and hyporheic interstitial; probably rhithrobiont and hyporheophilous.
Distribution: Indonesia, Sulawesi, Brunei, India, Sri Lanka (” Torrenticola pusta ” K. O. Viets 1973), Thailand, Malaysia.
description: Published as part of Pešić, Vladimir, Chatterjee, Tapas & Bordoloi, Sabitry, 2010, A checklist of the water mites (Acari: Hydrachnidia) of India, with new records and description of one new species, pp. 1-54 in Zootaxa 2617 (1) on page 14, DOI: 10.11646/zootaxa.2617.1.1, http://zenodo.org/record/197964
Natural Calamity, Its Impact and Level of Preparations Significance and Implications to the Community
Creators: name: Asio, John Mark R.
Publisher: name: figshare
Year: 2020
Subjects: subject: 40104 Climate Change Processes
subject: FOS: Earth and related environmental sciences
subject: 50203 Environmental Education and Extension
subject: 50204 Environmental Impact Assessment
subject: 50205 Environmental Management
subject: 50206 Environmental Monitoring

description: The purpose of the study is to analyze the knowledge ofnatural calamity, its impact and level of preparations of respondents in Central Luzon, Philippines. This study employed a descriptive-correlation design. 125 respondents participated in the survey with the use of convenience sampling technique. We drafted a questionnaire and subjected it to validity and reliability test which yielded an overall Cronbach alpha score of .969. After the survey, We analyzed the data using SPSS 20 and the following statistical tools: frequency, percentage, means, t-test, ANOVA, Pearson-r and Regression Analysis. The study found that the respondents are knowledgeable on natural calamities and its impacts. They are also prepared when a calamity occurs. There are significant differences on the knowledge of natural calamity and impact of natural calamity in terms of community and family members. There is also asignificant relationship observed between community, knowledge of natural calamity and impact of naturalcalamity. The same is observed between knowledge of natural calamity, impact of natural calamity and level of preparations of respondents. The community is a significant determinant of knowledge on natural calamity and impact of natural calamity and age is a significant determinant of knowledge on natural calamity.
Gradient flow formulation and second order numerical method for motion by mean curvature and contact line dynamics on rough surface
Creators: name: Gao, Yuan
name: Liu, Jian-Guo
Publisher: name: arXiv
Year: 2020
Subjects: subject: Numerical Analysis (math.NA)
subject: Fluid Dynamics (physics.flu-dyn)
subject: FOS: Mathematics
subject: FOS: Physical sciences
subject: 35R35, 35K93, 65M06, 76T30

description: We study the dynamics of a droplet moving on an inclined rough surface in the absence of inertial and viscous stress effects. In this case, the dynamics of the droplet is a purely geometric motion in terms of the wetting domain and the capillary surface. Using a single graph representation, we interpret this geometric motion as a gradient flow on a Hilbert manifold. We propose unconditionally stable first/second order numerical schemes to simulate this geometric motion of the droplet, which is described using motion by mean curvature coupled with moving contact lines. The schemes are based on (i) explicit moving boundaries, which decouple the dynamic updates of the contact lines and the capillary surface, (ii) a semi-Lagrangian method on moving grids and (iii) a predictor-corrector method with a nonlinear elliptic solver upto second order accuracy. For the case of quasi-static dynamics with continuous spatial variable in the numerical schemes, we prove the stability and convergence of the first/second order numerical schemes. To demonstrate the accuracy and long-time validation of the proposed schemes, several challenging computational examples - including breathing droplets, droplets on inhomogeneous rough surfaces and quasi-static Kelvin pendant droplets - are constructed and compared with exact solutions to quasi-static dynamics obtained by desingularized differential-algebraic system of equations (DAEs).
description: 8 figures, 48 pages
The Effect of Water-Binder Ratio and RHA on the Mechanical Performance of Sustainable Concrete
Creators: name: Khoso, Salim
Publisher: name: figshare
Year: 2023
Subjects: classificationCode: 400504
subject: Construction engineering
classificationCode: 400505
subject: Construction materials
classificationCode: 400509
subject: Structural dynamics
classificationCode: 400510
subject: Structural engineering
classificationCode: 400513
subject: Water resources engineering

description: Nowadays, the utilization of industrial energy, as well as construction waste, is of high concern. The current paper describes a study of the mechanical properties of cement concrete mixes utilizing Rice Husk Ash (RHA) as a cement substitute. The use of such industrial and agricultural by-products has been the focus of waste reduction for economic, environmental, and technical reasons. In this research, the compressive and split tensile strength of concrete was studied through a 15% substitution of cement with RHA with 0.40, 0.45, and 0.50 waterbinder ratios. It has been found that the addition of RHA significantly improves the mechanical properties of concrete for the used water-binder ratios. The ultimate strength in both compressive and tensile strength was observed at a water-binder ratio of 0.50. It has also been observed that as the water to cement ratio increased, higher gains in concrete's compressive and tensile strength were obtained for all curing periods.
Long-term evolution of the neutron rate at the Canfranc Underground Laboratory
Creators: name: Orrigo, S. E. A.
name: Tain, J. L.
name: Mont-Geli, N.
name: Tarifeño-Saldivia, A.
name: Fraile, L. M.
name: Grieger, M.
name: Agramunt, J.
name: Algora, A.
name: Bemmerer, D.
name: Calviño, F.
name: Cortés, G.
name: De Blas, A.
name: Dillmann, I.
name: Bugarín, A. Domínguez
name: García, R.
name: Nacher, E.
name: Tolosa-Delgado, A.
Publisher: name: arXiv
Year: 2022
Subjects: subject: Nuclear Experiment (nucl-ex)
subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: We report results on the long-term variation of the neutron counting rate at the Canfranc Underground Laboratory, of importance for several low-background experiments installed there, including rare-event searches. The measurement campaign was performed employing the High Efficiency Neutron Spectrometry Array (HENSA) mounted in Hall A and lasted 412 live days. The present study is the first long-term measurement of the neutron rate with sensitivity over a wide range of neutron energies (from thermal up to 0.1 GeV and beyond) performed in any underground laboratory so far. Data on the environmental variables inside the experimental hall (radon concentration, air temperature, air pressure and humidity) were also acquired during all the measurement campaign. We have investigated for the first time the evolution of the neutron rate for different energies of the neutrons and its correlation with the ambient variables.
description: 12 pages, 5 figures, 2 tables
The effect of the rapid growth of covid-19 publications on citation indicators
Creators: name: Sjögårde, Peter
Publisher: name: arXiv
Year: 2022
Subjects: subject: Digital Libraries (cs.DL)
subject: FOS: Computer and information sciences

description: A concern has been raised that "covidization" of research would cause an overemphasizes on covid-19 and pandemics at the expense of other research. The rapid growth of publications related to the Covid-19 pandemic renders a vast amount of citations from this literature. This growth may affect bibliometric indicators. In this paper I explored how the growth of covid-19 publications influences bibliometric indicators commonly used in university rankings, research evaluation and research allocation, namely the field normalized citation score and the journal impact factor. I found that the burst of publications in the early stage of the covid-19 pandemic affects field-normalized citation scores and will affect the journal impact factor. Publications unrelated to covid-19 are also heavily affected. I conclude that there is a considerable risk to draw misleading conclusions from citation indicators spanning over the beginning of the covid-19 pandemic, in particular when time series are used and when the biomedical literature is assessed.
Bilayer Hubbard model: Analysis based on the fermionic sign problem
Creators: name: Mou, Yingping
name: Mondaini, Rubem
name: Scalettar, Richard T.
Publisher: name: arXiv
Year: 2022
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: The bilayer Hubbard model describes the antiferromagnet to spin singlet transition and, potentially, aspects of the physics of unconventional superconductors. Despite these important applications, significant aspects of its `phase diagram' in the interplane hopping $t_\perp$ versus on-site interaction $U$ parameter space, at half filling, are largely in disagreement. Here we provide an analysis making use of the average sign of weights over the course of the importance sampling in quantum Monte Carlo simulations to resolve several central open questions. Specifically, this metric of the weights clarifies the finite-sized metallic regimes at small $U$. Furthermore, at strong interactions, it points to the existence of a crossover from a correlated to uncorrelated band insulator not yet explored in a variety of existing, unbiased numerical methods. Our work demonstrates the versatility of using properties of the weights in quantum Monte Carlo simulations to reveal important physical characteristics of the models under study.
description: 6+7 pages, 3+9 figures, update the figures
Searching for velocity-dependent dark matter annihilation signals from extragalactic halos
Creators: name: Baxter, Eric J.
name: Kumar, Jason
name: Paul, Aleczander D.
name: Runburg, Jack
Publisher: name: arXiv
Year: 2022
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We consider gamma-ray signals of dark matter annihilation in extragalactic halos in the case where dark matter annihilates from a $p$-wave or $d$-wave state. In these scenarios, signals from extragalactic halos are enhanced relative to other targets, such as the Galactic Center or dwarf spheroidal galaxies, because the typical relative speed of the dark matter is larger in extragalactic halos. We perform a mock data analysis of gamma rays produced by dark matter annihilation in halos detected by the Sloan Digital Sky Survey. We include a model for uncorrelated galactic and extragalactic gamma ray backgrounds, as well as a simple model for backgrounds due to astrophysical processes in the extragalactic halos detected by the survey. We find that, for models which are still allowed by other gamma ray searches, searches of extragalactic halos with the current Fermi exposure can produce evidence for dark matter annihilation, though it is difficult to distinguish the $p$-wave and $d$-wave scenarios. With a factor $10\times$ larger exposure, though, discrimination of the velocity-dependence is possible.
description: 20 pages, 5 figures; replaced to match version accepted by JCAP
Tits type alternative for groups acting on toric affine varieties
Creators: name: Arzhantsev, I.
name: Zaidenberg, M.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Algebraic Geometry (math.AG)
subject: Group Theory (math.GR)
subject: FOS: Mathematics
subject: 14R20 (primary), 20B22 (secondary)

description: Given a toric affine algebraic variety $X$ and a collection of one-parameter unipotent subgroups $U_1,\ldots,U_s$ of $\mathop{\rm Aut}(X)$ which are normalized by the torus acting on $X$, we show that the group $G$ generated by $U_1,\ldots,U_s$ verifies the following alternative of Tits' type: either $G$ is a unipotent algebraic group, or it contains a non-abelian free subgroup. We deduce that if $G$ is $2$-transitive on a $G$-orbit in $X$, then $G$ contains a non-abelian free subgroup, and so, is of exponential growth.
description: 24 pages. The main result strengthened, the proof of Proposition 4.8 written in more detail; some references added; the referee remarks taken into account; the title changed
CRIMINAL JUSTICE CONTACT AND PHYSICAL HEALTH OUTCOMES AMONG U.S. ADULTS
Creators: name: Mitchell, Denise
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2021

description: This project examines whether being stopped by police, arrested, convicted of a crime, or incarcerated is associated with poor physical health among U.S. young adults. Scholars have begun examining whether pre-incarceration contacts with law enforcement—such as being stopped by the police or arrested—are associated with health. Findings are inconsistent regarding whether pre-incarceration contacts are associated with poorer physical health. Previous research has tended to use single biomarker measures such as C-reactive protein or self-reported health, neither of which captures overall disease risk or poor health in young adult populations. I use a sample of Black, Latino, and White young adults ages 34-44 from the National Longitudinal Study of Adolescent to Adult Health (n=2,986) along with negative binomial regression models to examine the associations between criminal justice contacts and allostatic load. Results show that arrests at Wave III are associated with allostatic load at Wave V.
Existence and uniqueness of bounded stable solutions to the Peierls-Nabarro model for curved dislocations
Creators: name: Dong, Hongjie
name: Gao, Yuan
Publisher: name: arXiv
Year: 2020
Subjects: subject: Analysis of PDEs (math.AP)
subject: Pattern Formation and Solitons (nlin.PS)
subject: FOS: Mathematics
subject: FOS: Physical sciences

description: We study the well-posedness of the vector-field Peierls-Nabarro model for curved dislocations with a double well potential and a bi-states limit at far field. Using the Dirichlet to Neumann map, the 3D Peierls-Nabarro model is reduced to a nonlocal scalar Ginzburg-Landau equation. We derive an integral formulation of the nonlocal operator, whose kernel is anisotropic and positive when Poisson's ratio $ν\in(-\frac12, \frac13)$. We then prove that any bounded stable solutions to this nonlocal scalar Ginzburg-Landau equation has a 1D profile, which corresponds to the PDE version of flatness result for minimal surfaces with anisotropic nonlocal perimeter. Based on this, we finally obtain that steady states to the nonlocal scalar equation, as well as the original Peierls-Nabarro model, can be characterized as a one-parameter family of straight dislocation solutions to a rescaled 1D Ginzburg-Landau equation with the half Laplacian.
description: 24 pages
High-Cardinality Geometrical Constellation Shaping for the Nonlinear Fibre Channel
Creators: name: Sillekens, Eric
name: Liga, Gabriele
name: Lavery, Domaniç
name: Bayvel, Polina
name: Killey, Robert I.
Publisher: name: arXiv
Year: 2022
Subjects: subject: Information Theory (cs.IT)
subject: Signal Processing (eess.SP)
subject: FOS: Computer and information sciences
subject: FOS: Electrical engineering, electronic engineering, information engineering

description: This paper presents design methods for highly efficient optimisation of geometrically shaped constellations to maximise data throughput in optical communications. It describes methods to analytically calculate the information-theoretical loss and the gradient of this loss as a function of the input constellation shape. The gradients of the \ac{MI} and \ac{GMI} are critical to the optimisation of geometrically-shaped constellations. It presents the analytical derivative of the achievable information rate metrics with respect to the input constellation. The proposed method allows for improved design of higher cardinality and higher-dimensional constellations for optimising both linear and nonlinear fibre transmission throughput. Near-capacity achieving constellations with up to 8192 points for both 2 and 4 dimensions, with generalised mutual information (GMI) within 0.06 bit/2Dsymbol of additive white Gaussian noise channel (AWGN) capacity, are presented. Additionally, a design algorithm reducing the design computation time from days to minutes is introduced, allowing the presentation of optimised constellations for both linear AWGN and nonlinear fibre channels for a wide range of signal-to-noise ratios.
Symplectic Noise & The Classical Analog of the Lindblad Generator
Creators: name: Gough, John
Publisher: name: arXiv
Year: 2014
Subjects: subject: Quantum Physics (quant-ph)
subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: We introduce the concepts of Poisson brackets for classical noise, and of canonically conjugate Wiener processes (symplectic noise). Phase space diffusions driven by these processes are considered and the general form of a stochastic process preserving the full (system and noise) Poisson structure is obtained. We show that, once the classical stochastic model is required to preserve the joint system and noise Poisson bracket, it has much in common with quantum markovian models.
description: 14 pages, no figures - (typos corrected - factor of \mathsf{s} restored)
Continuous-variable quantum key distribution: security analysis with trusted hardware noise against general attacks
Creators: name: Goncharov, Roman
name: Kiselev, Alexei D.
name: Samsonov, Eduard
name: Egorov, Vladimir
Publisher: name: arXiv
Year: 2022
Subjects: subject: Quantum Physics (quant-ph)
subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: In this paper, using the full security framework for continuous variable quantum key distribution (CV-QKD), we provide a composable security proof for the CV-QKD system in a realistic implementation. We take into account equipment losses and contributions from various components of excess noise and evaluate performance against collective and coherent attacks assuming trusted hardware noise. The calculation showed that the system remains operable at channel losses up to 10.2 dB in the presence of collective attacks and up to 7.5 dB in the presence of coherent ones.
description: 28 pages, 5 figures
Gradient flow approach to an exponential thin film equation: global existence and latent singularity
Creators: name: Gao, Yuan
name: Liu, Jian-Guo
name: Lu, Xin Yang
Publisher: name: arXiv
Year: 2017
Subjects: subject: Analysis of PDEs (math.AP)
subject: FOS: Mathematics
subject: 35K65, 35R06, 49J40

description: In this work, we study a fourth order exponential equation, $u_t=Δe^{-Δu},$ derived from thin film growth on crystal surface in multiple space dimensions. We use the gradient flow method in metric space to characterize the latent singularity in global strong solution, which is intrinsic due to high degeneration. We define a suitable functional, which reveals where the singularity happens, and then prove the variational inequality solution under very weak assumptions for initial data. Moreover, the existence of global strong solution is established with regular initial data.
description: latent singularity, curve of maximal slope. arXiv admin note: text overlap with arXiv:1711.07405 by other authors
Symphony Generation with Permutation Invariant Language Model
Creators: name: Liu, Jiafeng
name: Dong, Yuanliang
name: Cheng, Zehua
name: Zhang, Xinran
name: Li, Xiaobing
name: Yu, Feng
name: Sun, Maosong
Publisher: name: arXiv
Year: 2022
Subjects: subject: Sound (cs.SD)
subject: Artificial Intelligence (cs.AI)
subject: Machine Learning (cs.LG)
subject: Audio and Speech Processing (eess.AS)
subject: FOS: Computer and information sciences
subject: FOS: Electrical engineering, electronic engineering, information engineering

description: In this work, we propose a permutation invariant language model, SymphonyNet, as a solution for symbolic symphony music generation. We propose a novel Multi-track Multi-instrument Repeatable (MMR) representation for symphonic music and model the music sequence using a Transformer-based auto-regressive language model with specific 3-D positional embedding. To overcome length overflow when modeling extra-long symphony tokens, we also propose a modified Byte Pair Encoding algorithm (Music BPE) for music tokens and introduce a novel linear transformer decoder architecture as a backbone. Meanwhile, we train the decoder to learn automatic orchestration as a joint task by masking instrument information from the input. We also introduce a large-scale symbolic symphony dataset for the advance of symphony generation research. Empirical results show that the proposed approach can generate coherent, novel, complex and harmonious symphony as a pioneer solution for multi-track multi-instrument symbolic music generation.
Dirac dark matter, neutrino masses, and dark baryogenesis
Creators: name: Restrepo, Diego
name: Rivera, Andrés
name: Tangarife, Walter
Publisher: name: arXiv
Year: 2022
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We present a gauged baryon number model as an example of models where all new fermions required to cancel out the anomalies help to solve phenomenological problems of the standard model (SM). Dark fermion doublets, along with the iso-singlet charged fermions, in conjunction with a set of SM-singlet fermions, participate in the generation of small neutrino masses through the Dirac-dark Zee mechanism. The other SM-singlets explain the dark matter in the Universe, while their coupling to an inert singlet scalar is the source of the $CP$ violation. In the presence of a strong first-order electroweak phase transition, this "dark" $CP$ violation allows for a successful electroweak baryogenesis mechanism.
description: 22 pages, 6 figures. Comments are welcome! v.3 matches the published version
Rare-earth monopnoctides -- family of antiferromagnets hosting magnetic Fermi arcs
Creators: name: Kushnirenko, Yevhen
name: Schrunk, Benjamin
name: Kuthanazhi, Brinda
name: Wang, Lin-Lin
name: Ahn, Junyeong
name: O`Leary, Evan
name: Eaton, Andrew
name: Bud`ko, S. L.
name: Slager, Robert-Jan
name: Canfield, P. C.
name: Kaminski, Adam
Publisher: name: arXiv
Year: 2022
Subjects: subject: Other Condensed Matter (cond-mat.other)
subject: FOS: Physical sciences

description: Since the discovery of topological insulators a lot of research effort has been devoted to magnetic topological materials, in which non-trivial spin properties can be controlled by magnetic fields, culminating in a wealth of fundamental phenomena and possible applications. The main focus was on ferromagnetic materials that can host Weyl fermions and therefore spin textured Fermi arcs. The recent discovery of Fermi arcs and new magnetic bands splitting in antiferromagnet (AFM) NdBi has opened up new avenues for exploration. Here we show that these uncharted effects are not restricted to this specific compound, but rather emerge in CeBi, NdBi, and NdSb when they undergo paramagnetic to AFM transition. Our data show that the Fermi arcs in NdSb have 2-fold symmetry, leading to strong anisotropy that may enhance effects of spin textures on transport properties. Our findings thus demonstrate that the RBi and RSb series are materials that host magnetic Fermi arcs and may be a potential platform for modern spintronics.
description: 19 pages, five figures, supplemental information
On the Landau system in noncommutative phase-space
Creators: name: Gangopadhyay, Sunandan
name: Saha, Anirban
name: Halder, Aslam
Publisher: name: arXiv
Year: 2014
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We consider a charged particle moving in a two dimensional plane in the presence of a background magnetic field perpendicular to the plane, i.e. the Landau system in a phase-space where the coordinates and momenta both follow canonical noncommutative algebra. A set of generalized transformations is derived in this paper which maps the NC problem to an equivalent commutative problem. In this set up, we study the Aharonov-Bohm effect and the Landau levels. For the Aharonov-Bohm effect, the phase-shift is found to contain corrections due to phase-space noncommutativity and also depends on the scaling parameter appearing in the generalized transformations. The result agrees with those in the literature upto first order in the noncommutative parameters when proper choice of the scaling parameter is taken. We then obtain the magnetic length and degeneracy of the Landau levels, both are seen to admit NC corrections. The Landau levels are seen to get altered due to phase-space noncommutativity as well. This energy spectrum of the Landau system is computed from two different perspectives, namely the explicit NC variable approach and the commutative-equivalent approach. The results match exactly, solidifying the evidence in favour of the equivalence of the two approaches.
description: section added, abstract rewritten, references added, to appear in Physics Letters A
Probing Lorentz-Invariance-Violation Induced Nonthermal Unruh Effect in Quasi-Two-Dimensional Dipolar Condensates
Creators: name: Tian, Zehua
name: Wu, Longhao
name: Zhang, Liang
name: Jing, Jiliang
name: Du, Jiangfeng
Publisher: name: arXiv
Year: 2022
Subjects: subject: Quantum Physics (quant-ph)
subject: Quantum Gases (cond-mat.quant-gas)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: The Unruh effect states an accelerated particle detector registers a thermal response when moving through the Minkowski vacuum, and its thermal feature is believed to be inseparable from Lorentz symmetry: Without the latter, the former disappears. Here we propose to observe analogue circular Unruh effect using an impurity atom in a quasi-two-dimensional Bose-Einstein condensate (BEC) with dominant dipole-dipole interactions between atoms or molecules in the ultracold gas. Quantum fluctuations in the condensate possess a Bogoliubov spectrum $ω_{\mathbf k}=c_0|{\mathbf k}|f(\hbar\,c_0|{\mathbf k}|/M_\ast)$, working as an analogue Lorentz-violating quantum field with the Lorentz-breaking scale $M_\ast$, and the impurity acts as an effective Unruh-DeWitt detector thereof. When the detector travels close to the sound speed, observation of the Unruh effect in our quantum fluid platform becomes experimentally feasible. In particular, the deviation of the Bogoliubov spectrum from the Lorentz-invariant case is highly engineerable through the relative strength of the dipolar and contact interactions, and thus a viable laboratory tool is furnished to experimentally investigate whether the thermal characteristic of Unruh effect is robust to the breaking of Lorentz symmetry.
description: 8+4 pages, 3 figures
Regularity and monotonicity for solutions to a continuum model of epitaxial growth with nonlocal elastic effects
Creators: name: Gao, Yuan
name: Lu, Xin Yang
name: Wang, Chong
Publisher: name: arXiv
Year: 2020
Subjects: subject: Analysis of PDEs (math.AP)
subject: FOS: Mathematics

description: We study a nonlocal 4th order degenerate equation deriving from the epitaxial growth on crystalline materials. We first prove the global existence of evolution variational inequality solution with a general initial data using the gradient flow structure. Then with a monotone initial data, we prove the subdifferential of the associated convex functional is indeed single-valued, which gives higher regularities of the global solution. Particularly, higher regularites imply that the strict monotonicity maintains for all time, which provides rigorous justification for global-in time monotone solution to epitaxial growth model with nonlocal elastic effects on vicinal surface.
Monatractides pinapalpis Cook 1967
Creators: name: Pešić, Vladimir
name: Chatterjee, Tapas
name: Bordoloi, Sabitry
Publisher: name: Zenodo
Year: 2010
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Arachnida
Trombidiformes
Torrenticolidae
Monatractides
Monatractides pinapalpis

description: Monatractides pinapalpis (Cook, 1967)
Records from the study area: Kerala, Tamil Nadu—“ Torenticola (Monatractides) pinapalpis “ Cook (1967); “ T. pinapalpis “ Prasad (1974).
Habitat: Streams.
Distribution: India.
description: Published as part of Pešić, Vladimir, Chatterjee, Tapas & Bordoloi, Sabitry, 2010, A checklist of the water mites (Acari: Hydrachnidia) of India, with new records and description of one new species, pp. 1-54 in Zootaxa 2617 (1) on page 14, DOI: 10.11646/zootaxa.2617.1.1, http://zenodo.org/record/197964
Classification using a two-qubit quantum chip
Creators: name: Neumann, Niels M. P.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Quantum computing has great potential for advancing machine learning algorithms beyond classical reach. Even though full-fledged universal quantum computers do not exist yet, its expected benefits for machine learning can already be shown using simulators and already available quantum hardware. In this work, we focus on distance-based classification using actual early stage quantum hardware. We extend earlier work and present a distance-based classification algorithm using only two qubits. We show that the results are similar to the theoretically expected results.
On dynamic mutual information for bivariate lifetimes
Creators: name: Ahmadi, Jafar
name: Di Crescenzo, Antonio
name: Longobardi, Maria
Publisher: name: arXiv
Year: 2014
Subjects: subject: Probability (math.PR)
subject: Information Theory (cs.IT)
subject: FOS: Mathematics
subject: FOS: Computer and information sciences
subject: 94A17, 62N05, 60E99

description: We consider dynamic versions of the mutual information of lifetime distributions, with focus on past lifetimes, residual lifetimes and mixed lifetimes evaluated at different instants. This allows to study multicomponent systems, by measuring the dependence in conditional lifetimes of two components having possibly different ages. We provide some bounds, and investigate the mutual information of residual lifetimes within the time-transformed exponential model (under both the assumptions of unbounded and truncated lifetimes). Moreover, with reference to the order statistics of a random sample, we evaluate explicitly the mutual information between the minimum and the maximum, conditional on inspection at different times, and show that it is distribution-free. Finally, we develop a copula-based approach aiming to express the dynamic mutual information for past and residual bivariate lifetimes in an alternative way.
description: 19 pages, 3 figures
ngravs: Distinct gravitational interactions in GADGET-2
Creators: name: Croker, K. A. S.
Publisher: name: arXiv
Year: 2015
Subjects: subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: We discuss an extension of the massively parallel cosmological simulation code GADGET-2, which now enables investigation of multiple and distinct gravitational force laws, provided they are dominated by a constant scaling of the Newtonian force. In addition to simplifying investigations of a universally modified force law, the ngravs extension provides a foundation for state-of-the-art collisionless cosmological simulations of exotic gravitational scenarios. We briefly review the algorithms used by GADGET-2, and present our extension to multiple gravities, highlighting additional features that facilitate consideration of exotic force laws. We discuss the accuracy and performance of the ngravs extension, both internally and with an unaltered GADGET-2, in the relevant operational modes. The ngravs extension is publicly released to the research community.
description: 10 pages, 6 figures. Includes CPC referee requested revisions
Secure Communication with a Wireless-Powered Friendly Jammer
Creators: name: Liu, Wanchun
name: Zhou, Xiangyun
name: Durrani, Salman
name: Popovski, Petar
Publisher: name: arXiv
Year: 2014
Subjects: subject: Information Theory (cs.IT)
subject: FOS: Computer and information sciences

description: In this paper, we propose to use a wireless-powered friendly jammer to enable secure communication between a source node and destination node, in the presence of an eavesdropper. We consider a two-phase communication protocol with fixed-rate transmission. In the first phase, wireless power transfer is conducted from the source to the jammer. In the second phase, the source transmits the information-bearing signal under the protection of a jamming signal sent by the jammer using the harvested energy in the first phase. We analytically characterize the long-time behavior of the proposed protocol and derive a closed-form expression for the throughput. We further optimize the rate parameters for maximizing the throughput subject to a secrecy outage probability constraint. Our analytical results show that the throughput performance differs significantly between the single-antenna jammer case and the multi-antenna jammer case. For instance, as the source transmit power increases, the throughput quickly reaches an upper bound with single-antenna jammer, while the throughput grows unbounded with multi-antenna jammer. Our numerical results also validate the derived analytical results.
description: accepted for publication in IEEE Transactions on Wireless Communications
DISCOVERY OF NEW LATENCY REVERSAL TARGETS AND DEVELOPMENT OF  ASSAYS TO MEASURE THE LATENT RESERVOIR
Creators: name: Sanchez, Anthony
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2021

description: Human Immunodeficiency Virus (HIV) infects human CD4+ T-cells and causes terminal disease if left untreated. Despite treatment with antiretroviral therapy, some infected cells that contain replication competent and transcriptionally silenced HIV persist. These cells reactivate upon cessation of therapy, posing the main barrier to an HIV cure. Latency reversal agents (LRAs) attempt to reactivate viral gene expression, exposing these cells to the host immune system for clearance. Polycomb Repressive Complex 2 (PRC2), the sole known depositor of histone H3 lysine 27 trimethylation (H3K27me3), has been implicated as an LRA target. Despite the knowledge that PRC2 is involved in HIV latency, it is unknown which PRC2 subcomplex is relevant. Herein we describe two projects; 1) Examining the role of PRC2 accessory subunits inHIV latency to identify new targets for LRA development and 2) Development of a high throughput viral outgrowth assay using cell-raft technology to measure the efficacy of LRAs.