cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Flux ropes and dynamics of the heliospheric current sheet
Creators: name: Réville, V.
name: Fargette, N.
name: Rouillard, A. P.
name: Lavraud, B.
name: Velli, M.
name: Strugarek, A.
name: Parenti, S.
name: Brun, A. S.
name: Shi, C.
name: Kouloumvakos, A.
name: Poirier, N.
name: Pinto, R. F.
name: Louarn, P.
name: Fedorov, A.
name: Owen, C. J.
name: Génot, V.
name: Horbury, T. S.
name: Laker, R.
name: O'Brien, H.
name: Angelini, V.
name: Fauchon-Jones, E.
name: Kasper, J. C.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: Plasma Physics (physics.plasm-ph)
subject: FOS: Physical sciences

description: Context. Solar Orbiter and PSP jointly observed the solar wind for the first time in June 2020, capturing data from very different solar wind streams, calm and Alfvénic wind as well as many dynamic structures. Aims. The aim here is to understand the origin and characteristics of the highly dynamic solar wind observed by the two probes, in particular in the vicinity of the heliospheric current sheet (HCS). Methods. We analyse the plasma data obtained by PSP and Solar Orbiter in situ during the month of June 2020. We use the Alfvén-wave turbulence MHD solar wind model WindPredict-AW, and perform two 3D simulations based on ADAPT solar magnetograms for this period. Results. We show that the dynamic regions measured by both spacecraft are pervaded with flux ropes close to the HCS. These flux ropes are also present in the simulations, forming at the tip of helmet streamers, i.e. at the base of the heliospheric current sheet. The formation mechanism involves a pressure driven instability followed by a fast tearing reconnection process, consistent with the picture of Réville et al. (2020a). We further characterize the 3D spatial structure of helmet streamer born flux ropes, which seems, in the simulations, to be related to the network of quasi-separatrices.
description: 14 pages, 12 Figures, accepted for publication in Astronomy and Astrophysics
Diabetes in clinical microsystems
Creators: name: Camara, Mohamed
Publisher: name: F1000Research
Year: 2015

description: The aim of my presentation is to promote the concept of the leadership in Clinical Microsystems in managing the chronic disease. The concept will be based on the self-efficacy; self-management in the chronic care. Everyone needs to trust in him or herself. That can be beneficial for managing chronic diseases. In chronic pain for instance, people usually take strong pain medicines for life; while alternatives to pain medications can help them to relieve their pain in a very high rate. Those alternatives could be decided and implemented by patients themselves. Alternatives would include for example; stretching; deep massage; swimming. Many American adults deal with the chronic diseases. Those diseases include, but not limited to, chronic pain; cardiovascular disease; diabetes; renal disease. In those chronic diseases, their life could be improved by changing their life styles. According to a CDC report; “Chronic disease and conditions-such as heart disease, stroke, cancer, diabetes, obesity, and arthritis-are among the most common, costly, and preventable of all health problems.”

The diabetes is an example of the chronic disease that can be efficiently managed with the concept of the Clinical Microsystems. In diabetes, the patients should frequently perform their own finger stick. In Clinical Microsystems, the patients should report their own data to their providers. That already works in some healthcare settings in the developed countries. The Clinical Leaders in the diabetes care, would implement the following strategies to enhance the self-efficacy and the self-management of the patients:

- Education
- Communication
- Access of the patients to their medical records on line
- Provide to the patients a copy of each visit

Reference:
Centers for Disease Control and Prevention: Disease Prevention and Health Promotion: Chronic Disease
and Health Promotion; Chronic Diseases: The Leading Causes of Death and Disability in The United States; Retrieved from
http://www.cdc.gov/chronicdisease/overview/
Efficient Bypass in Mesh and Torus NoCs
Creators: name: Pérez, Iván
name: Vallejo, Enrique
name: Beivide, Ramón
Publisher: name: arXiv
Year: 2020
Subjects: subject: Hardware Architecture (cs.AR)
subject: FOS: Computer and information sciences

description: Minimizing latency and power are key goals in the design of NoC routers. Different proposals combine lookahead routing and router bypass to skip the arbitration and buffering, reducing router delay. However, the conditions to use them requires completely empty buffers in the intermediate routers. This restricts the amount of flits that use the bypass pipeline especially at medium and high loads, increasing latency and power. This paper presents NEBB, Non-Empty Buffer Bypass, a mechanism that allows to bypass flits even if the buffers to bypass are not empty. The mechanism applies to wormhole and virtual-cut-through, each of them with different advantages. NEBB-Hybrid is proposed to employ the best flow control in each situation. The mechanism is extended to torus topologies, using FBFC and shared buffers. The proposals have been evaluated using Booksim, showing up to 75% reduction of the buffered flits for single-flit packets, which translates into latency and dynamic power reductions of up to 30% and 23% respectively. For bimodal traffic, these improvements are 20 and 21% respectively. Additionally, the bypass utilization is largely independent of the number of VCs when using shared buffers and very competitive with few private ones, allowing to simplify the allocation mechanisms.
description: 14 pages, 16 figures, LaTeX; this review is an update of the preprint to the accepted manuscript of the paper; the final version of this work has been published in the Journal of SystemArchitecture, DOI: https://doi.org/10.1016/j.sysarc.2020.101832
Global phase diagram of the spin-1 antiferromagnet with uniaxial anisotropy on the kagome lattice
Creators: name: Xu, Cenke
name: Moore, Joel E.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: The phase diagram of the XXZ spin-1 quantum magnet on the kagome lattice is studied for all cases where the $J_z$ coupling is antiferromagnetic. In the zero magnetic field case, the six previously introduced phases, found using various methods, are: the nondegenerate gapped photon phase which breaks no space symmetry or spin symmetry; the six-fold degenerate phase with plaquette order, which breaks both time reversal symmetry and translational symmetry; the "superfluid" (ferromagnetic) phase with an in-plane global U(1) symmetry broken, when $J_{xy} < 0$; the $\sqrt{3}\times\sqrt{3}$ order when $J_{xy} > 0$; the nematic phase when $D < 0$ and large; and a phase with resonating dimers on each hexagon. We obtain all of these phases and partial information about their quantum phase transitions in a single framework by studying condensation of defects in the six-fold plaquette phases. The transition between nematic phase and the six-fold degenerate plaquette phase is potentially an unconventional second-order critical point. In the case of a nonzero magnetic field along $\hat{z}$, another ordered phase with translation symmetry broken is opened up in the nematic phase. Due to the breaking of time-reversal symmetry by the field, a supersolid phase emerges between the six-fold plaquette order and the superfluid phase. This phase diagram might be accessible in nickel compounds, BF$_4$ salts, or optical lattices of atoms with three degenerate states on every site.
description: 17 pages, 16 figures
Determination of the interactions in confined macroscopic Wigner islands: theory and experiments
Creators: name: Galatola, P.
name: Coupier, G.
name: Jean, M. Saint
name: Fournier, J. -B.
name: Guthmann, C.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: Macroscopic Wigner islands present an interesting complementary approach to explore the properties of two-dimensional confined particles systems. In this work, we characterize theoretically and experimentally the interaction between their basic components, viz., conducting spheres lying on the bottom electrode of a plane condenser. We show that the interaction energy can be approximately described by a decaying exponential as well as by a modified Bessel function of the second kind. In particular, this implies that the interactions in this system, whose characteristics are easily controllable, are the same as those between vortices in type-II superconductors.
description: 8 pages, 8 figures
Hong-Ou-Mandel interference depends on the method of the erasing the beam path information
Creators: name: Youn, Sun-Hyun
Publisher: name: arXiv
Year: 2020
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We study how the information of the beam path is related to the Hong-Ou-Mandel interference with two pulsed light sources. Through a simple model in which two photons in the form of pulses pass a beamsplitter and are observed at two detectors, we investigate how, during the measurement process, information about the paths of the two photons can be erased. There are two ways to clear the information of the beam path, the first being that from the beginning, during the physical measurement process, the time information is not obtained. The other is after measuring the information, to erase the temporal information in the data analyzing process. We show that Hong-Ou-Mandel interference can be obtained only when the beam path inofrmation is cleared from the physical measurement process.
The bacterial replication origin BUS promotes nucleobase capture.
Creators: name: Pelliciari, Simone
name: Bodet-Lefèvre, Salomé
name: Fenyk, Stepan
name: Stevens, Daniel
name: Winterhalter, Charles
name: Schramm, Frederic D
name: Pintar, Sara
name: Burnham, Daniel R
name: Merces, George
name: Richardson, Tomas T
name: Tashiro, Yumiko
name: Hubbard, Julia
name: Yardimci, Hasan
name: Ilangovan, Aravindan
name: Murray, Heath
Publisher: name: The Francis Crick Institute
Year: 2024
Subjects: classificationCode: Genome Integrity & Repair
subject: Genome Integrity & Repair
classificationCode: Biochemistry & Proteomics
subject: Biochemistry & Proteomics
classificationCode: Structural Biology & Biophysics
subject: Structural Biology & Biophysics
classificationCode: Imaging
subject: Imaging
classificationCode: Cell Cycle & Chromosomes
subject: Cell Cycle & Chromosomes

description: Genome duplication is essential for the proliferation of cellular life and this process is generally initiated by dedicated replication proteins at chromosome origins. In bacteria, DNA replication is initiated by the ubiquitous DnaA protein, which assembles into an oligomeric complex at the chromosome origin (oriC) that engages both double-stranded DNA (dsDNA) and single-stranded DNA (ssDNA) to promote DNA duplex opening. However, the mechanism of DnaA specifically opening a replication origin was unknown. Here we show that Bacillus subtilis DnaAATP assembles into a continuous oligomer at the site of DNA melting, extending from a dsDNA anchor to engage a single DNA strand. Within this complex, two nucleobases of each ssDNA binding motif (DnaA-trio) are captured within a dinucleotide binding pocket created by adjacent DnaA proteins. These results provide a molecular basis for DnaA specifically engaging the conserved sequence elements within the bacterial chromosome origin basal unwinding system (BUS).
Elicitation - switch-reference
Creators: name: Sampi Ríos, Celia
name: Clem, Emily
Publisher: name: California Language Archive, University of California, Berkeley
Year: 2024
Subjects: subject: amc

description: This bundle contains recordings and associated notes from an elicitation session conducted by Emily Clem with Celia Sampi Ríos. Topics covered include switch-reference, attitude reports, word order with complex nominals, and negation.
Neutrino physics at large colliders
Creators: name: del Aguila, F.
name: Aguilar-Saavedra, J. A.
name: Pittau, R.
Publisher: name: arXiv
Year: 2006
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: Large colliders are not sensitive to light neutrino masses and character, but they can produce new heavy neutrinos, allowing also for the determination of their Dirac or Majorana nature. We review the discovery limits at the next generation of large colliders.
description: LaTeX 32 pages. This review summarises and extends work presented at several conferences. To appear in the proceedings of CORFU2005. References added
Photonic integrated circuits for life sciences
Creators: name: Witzens, Jeremy
name: Leisching, Patrick
name: Mashayekh, Alireza T.
name: Klos, Thomas
name: Koch, Sina
name: Merget, Florian
name: Geuzebroek, Douwe
name: Klein, Edwin
name: Veenstra, Theo
name: Dekker, Ronald
Publisher: name: arXiv
Year: 2021
Subjects: subject: Instrumentation and Detectors (physics.ins-det)
subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: We report on the use of silicon nitride (SiN) photonic integrated circuits (PICs) in high-value instrumentation, namely multi-color laser engines (MLEs), a core element of cutting-edge biophotonic systems applied to confocal microscopy, fluorescent microscopy - including super-resolution stimulated emission depletion (STED) microscopy - flow cytometry, optogenetics, genetic analysis and DNA sequencing, to name just a few. These have in common the selective optical excitation of molecules - fluorophores, or, in the case of optogenetics, light-gated ion channels - with laser radiation falling within their absorption spectrum. Unambiguous identification of molecules or cellular subsets often requires jointly analyzing fluorescent signals from several fluorescent markers, so that MLEs are required to provide excitation wavelengths for several commercially available biocompatible fluorophores. A number of functionalities are required from MLEs in addition to sourcing the required wavelengths: Variable attenuation and/or digital intensity modulation in the Hz to kHz range are required for a number of applications such as optical trapping, lifetime imaging, or fluorescence recovery after photobleaching (FRAP). Moreover, switching of the laser between two fiber outputs can be utilized for example to switch between scanning confocal microscopy and widefield illumination modes, for instance, for conventional fluorescence imaging.
Walking in the SU(N)
Creators: name: Dietrich, Dennis D.
name: Sannino, Francesco
Publisher: name: arXiv
Year: 2006
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We study the phase diagram as function of the number of colours and flavours of asymptotically free non-supersymmetric theories with matter in higher dimensional representations of arbitrary SU(N) gauge groups. Since matter in higher dimensional representations screens more than in the fundamental a general feature is that a lower number of flavours is needed to achieve a near-conformal theory. We study the spectrum of the theories near the fixed point and consider possible applications of our analysis to the dynamical breaking of the electroweak symmetry.
description: 12 pages
MUSCLE CLASSIFICATION
Creators: name: Djuraeva, Barno
name: Abdukhalilov, Javohir
name: Abdusaminov, Sarvarbek
Publisher: name: Zenodo
Year: 2024

description: This comprehensive article explores the classification of muscles, offering a detailed examination of the major types based on structure, function, and arrangement. It delves into skeletal muscles, responsible for voluntary movements; smooth muscles, governing involuntary actions; and cardiac muscles, essential for maintaining heart function. The structural classification covers parallel, pennate, and convergent muscles, elucidating their unique features and applications. Additionally, the functional classification categorizes muscles as prime movers, antagonists, synergists, and fixators, providing insights into their roles during movement. The article emphasizes the clinical significance of understanding muscle classification in fields like physical therapy and sports science. Overall, it serves as a comprehensive guide for readers seeking a nuanced understanding of the diverse world of muscles.
Phase Space Representations and Perturbation Theory for Continuous-time Histories
Creators: name: Burch, Aidan
Publisher: name: arXiv
Year: 2007
Subjects: subject: Quantum Physics (quant-ph)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We consider two technical developments of the formalism of continuous-time histories. First, we provide an explicit description of histories of the simple harmonic oscillator on the classical histories phase space, comparing and contrasting the Q, P and Wigner representations; we conclude that a representation based on coherent states is the most appropriate. Second, we demonstrate a generic method for implementing a perturbative approach for interacting theories in the histories formalism, using the quartic anharmonic oscillator. We make use of the identification of the closed-time path (CTP) generating functional with the decoherence functional to develop a perturbative expansion for the latter up to second order in the coupling constant. We consider both configuration space and phase space histories.
description: 22 pages; slightly shortened, more concise argumentation; ref. added
Inference of sparse networks with unobserved variables. Application to gene regulatory networks
Creators: name: Slavov, Nikolai
Publisher: name: F1000Research
Year: 2015

description: Networks are becoming a unifying framework for modeling complex systems and network inference problems are frequently encountered in many fields. Here, I develop and apply a generative approach to network inference (RCweb) for the case when the network is sparse and the latent (not observed) variables affect the observed ones. From all possible factor analysis (FA) decompositions explaining the variance in the data, RCweb selects the FA decomposition that is consistent with a sparse underlying network. The sparsity constraint is imposed by a novel method that significantly outperforms (in terms of accuracy, robustness to noise, complexity scaling and computational efficiency) methods using l1 norm relaxation such as K-SVD and l1-based sparse principle component analysis (PCA). Results from simulated models demonstrate that RCweb recovers exactly the model structures for sparsity as low (as non-sparse) as 50% and with ratio of unobserved to observed variables as high as 2. RCweb is robust to noise, with gradual decrease in the parameter ranges as the noise level increases.
The adolescent feline faecal microbiome: a longitudinal study into the effects of age, gender and neutering
Creators: name: Deusch, Oliver
Publisher: name: F1000Research
Year: 2015

description: Companion animals provide an excellent model for studies of the gut microbiome because potential confounders such as diet and environment can be more readily controlled for than in humans. Additionally, domestic cats and dogs are typically neutered early in life, enabling an investigation into the potential effect of sex hormones on the microbiome. In a longitudinal study to investigate the potential effects of neutering, neutering age and gender on the gut microbiome during growth, the faeces of kittens (16 male, 14 female) were sampled at 18, 30 and 42 weeks of age. DNA was shotgun sequenced on the Illumina HiSeq platform and sequence reads were annotated for taxonomy and function by comparison to a database of protein coding genes using a composition vector approach. In a statistical analysis of diversity, taxonomy and functional potential, age was identified as the only factor with significant associations. No significant effects were detected for gender, neutering, or age when neutered (early or conventional). At 18 weeks of age the microbiome was dominated by the genera Lactobacillus and Bifidobacterium (35% and 20% average abundance). Structural and functional diversity was significantly increased by week 30 but there was no further significant increase. At 42 weeks of age the most abundant genera were Bacteroides (16%), Prevotella (14%) and Megasphaera (8%). Significant differences in functional potential included an enrichment for genes in energy metabolism (carbon metabolism and oxidative phosphorylation) and depletion in cell motility (flagella and chemotaxis). We conclude that the feline faecal microbiome is predominantly determined by age when diet and environment are controlled for. We suggest this finding may also be informative for studies of the human microbiome, where control over such factors is usually limited.
Elicitation - switch-reference
Creators: name: Soria Pérez, Celia
name: Clem, Emily
Publisher: name: California Language Archive, University of California, Berkeley
Year: 2024
Subjects: subject: amc

description: This bundle contains recordings and associated notes from an elicitation session conducted by Emily Clem with Celia Soria Pérez. Topics covered include word order with complex nominals, switch-reference, attitude reports, and negation.
The curvature of contact structure on 3-manifolds
Creators: name: Krouglov, Vladimir
Publisher: name: arXiv
Year: 2008
Subjects: subject: Differential Geometry (math.DG)
subject: Geometric Topology (math.GT)
subject: FOS: Mathematics
subject: 53D35; 53B21

description: We study the sectional curvature of plane distributions on 3-manifolds. We show that if the distribution is a contact structure it is easy to manipulate this curvature. As a corollary we obtain that for every transversally oriented contact structure on a closed 3-dimensional manifold $M$ there is a metric, such that the sectional curvature of the contact distribution is equal to -1. We also introduce the notion of Gaussian curvature of the plane distribution. For this notion of curvature we get the similar results.
description: 9 pages
Development of data-driven spd tight-binding models of Fe -- parameterisation based on QSGW and DFT calculations including information about higher-order elastic constants
Creators: name: Barzdajn, Bartosz
name: Garrett, Alexander M
name: Whiting, Thomas M
name: Race, Christopher P
Publisher: name: arXiv
Year: 2020
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Quantum-mechanical (QM) simulations, thanks to their predictive power, can provide significant insights into the nature and dynamics of defects such as vacancies, dislocations and grain boundaries. These considerations are essential in the context of the development of reliable, inexpensive and environmentally friendly alloys. However, despite significant progress in computer performance, QM simulations of defects are still extremely time-consuming with ab-initio/non-parametric methods. The two-centre Slater-Koster (SK) tight-binding (TB) models can achieve significant computational efficiency and provide an interpretable picture of the electronic structure. In some cases, this makes TB a compelling alternative to models based on abstraction of the electronic structure, such as the embedded atom model. The biggest challenge in the implementation of the SK method is the estimation of the optimal and transferable parameters that are used to construct the Hamiltonian matrix. In this paper, we will present results of the development of a data-driven framework, following the classical approach of adjusting parameters in order to recreate properties that can be measured or estimated using ab-initio or non-parametric methods. Distinct features include incorporation of data from QSGW (quasi-particle self-consistent GW approximation) calculations, as well as consideration of higher-order elastic constants. Furthermore, we provide a description of the optimisation procedure, omitted in many publications, including the design stage. We also apply modern optimisation techniques that allow us to minimise constraints on the parameter space. In summary, this paper introduces some methodological improvements to the semi-empirical approach while addressing associated challenges and advantages.
Systematic Uncertainties in Stellar Mass Estimation for Distinct Galaxy Populations
Creators: name: Kannappan, Sheila J.
name: Gawiser, Eric
Publisher: name: arXiv
Year: 2007
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We show that different stellar-mass estimation methods yield overall mass scales that disagree by factors up to ~2 for the z=0 galaxy population, and more importantly, relative mass scales that sometimes disagree by factors >~3 between distinct classes of galaxies (spiral/irregular types, classical E/S0s, and E/S0s whose colors reflect recent star formation). This comparison considers stellar mass estimates based on (a) two different calibrations of the correlation between K-band mass-to-light ratio and B-R color (Bell et al., Portinari et al.) and (b) detailed fitting of UBRJHK photometry and optical spectrophotometry using two different population synthesis models (Bruzual-Charlot, Maraston), with the same initial mass function in all cases. We also compare stellar+gas masses with dynamical masses. This analysis offers only weak arguments for preferring a particular stellar-mass estimation method, given the plausibility of real variations in dynamical properties and dark matter content. These results help to calibrate the systematic uncertainties inherent in mass-based evolutionary studies of galaxies, including comparisons of low and high redshift galaxies.
description: 5 pages including 2 enlarged figures, ApJ Letters, accepted
Conformal geometry on a class of embedded hypersurfaces in spacetimes
Creators: name: Sherif, Abbas M.
name: Dunsby, Peter K. S.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Differential Geometry (math.DG)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Mathematics
subject: FOS: Physical sciences

description: In this work, we study various properties of embedded hypersurfaces in $1+1+2$ decomposed spacetimes with a preferred spatial direction, denoted $e^μ$, which are orthogonal to the fluid flow velocity of the spacetime and admit a proper conformal transformation. To ensure a non-vanishing positivity scalar curvature of the induced metric, we impose that the scalar curvature of the conformal metric is non-negative and that the associated conformal factor satisfies $\hatφ^2+2\hat{\hatφ}>0$, where $\hat{\ast}$ denotes derivative along $e^μ$. Firstly, it is demonstrated that such hypersurface is either Einstein or the twist vanishes on it, and that the scalar curvature of the induced metric is constant. It is then proved that if the hypersurface is compact and of Einstein, and admits a proper conformal transformation, then the hypersurface must be isomorphic to the $3$-sphere, where we make use of well known results on Riemannian manifolds admitting conformal transformations. If the hypersurface is not Einstein and has nowhere vanishing sheet expansion, we show that this conclusion fails. However, with the additional conditions that the scalar curvatures of the induced metric and the conformal metric coincide, the associated conformal factor is strictly negative and the third and higher order derivatives of the conformal factor vanish, the conclusion follows. Furthermore, additional results are obtained under the conditions that the scalar curvature of a metric conformal to the induced metric is also constant. Finally, we consider some of our results in context of locally rotationally symmetric spacetimes and show that, if the hypersurfaces are compact and not of Einstein type, then under specified conditions the hypersurface is isomorphic to the $3$-sphere, where we constructed explicit examples of proper conformal Killing vector fields along $e^μ$.
description: 21 pages, no figure, Accepted for publication in CQG
Double-Trace Deformations, Mixed Boundary Conditions and Functional Determinants in AdS/CFT
Creators: name: Hartman, Thomas
name: Rastelli, Leonardo
Publisher: name: arXiv
Year: 2006
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: According to the AdS/CFT dictionary, perturbing the large N boundary theory by a relevant double-trace deformation of the form f O^2 corresponds in the bulk to imposing ``mixed'' boundary conditions for the field dual to O. In this note we address various aspects of this correspondence. The change c_{UV} - c_{IR} of the central charge between the UV ad IR fixed points is known from explicit calculations (hep-th/0210093, hep-th/0212138) to be exactly the same in the bulk and in the boundary theories. By comparing the appropriate bulk and boundary functional determinants, we give a simple ``kinematic'' explanation for this universal agreement. We also clarify the prescription for computing AdS/CFT correlators with Delta_- boundary conditions.
description: 30 pages, LaTex. v2: reference added
Development of time-of-flight particle identification for future Higgs factories
Creators: name: Dudar, Bohdan
name: Einhaus, Ulrich
name: List, Jenny
name: Helms, Konrad
name: Gaede, Frank
Publisher: name: Deutsches Elektronen-Synchrotron, DESY, Hamburg
Year: 2023
Subjects: tracks, length
detector, design
detector, technology
calorimeter, electromagnetic
time-of-flight
particle identification
tracking detector
Higgs-factory
energy loss
exceptional
Cherenkov counter
machine learning
silicon
particle flow
RICH
performance
resolution
ILD detector
hadron

description: With the emergence of advanced Silicon (Si) sensor technologies such as LGADs, it is now possible to achieve exceptional time measurement precision below 50 ps. As a result, the implementation of time-of-flight (TOF) particle identification (PID) for charged hadrons at future $e^{+}e^{-}$ Higgs factory detectors has gained increasing attention. Other PID techniques require a gaseous tracker with excellent dE/dx resolution, or a Ring-imaging Cherenkov detector (RICH), which adds additional material in front of the calorimeter. TOF measurements can be implemented either in the outer layers of the tracker or in the electromagnetic calorimeter, and are thus particularly interesting as a PID method for detector concepts based on all-silicon trackers and optimised for particle-flow reconstruction. In this study, we will explore potential integration scenarios of a TOF measurement in a future Higgs factory detector, using the International Large Detector (ILD) as an example. We will focus on the challenges associated with crucial components of TOF PID, namely track length reconstruction and TOF measurements. The subsequent discussion will highlight the vital impact of precise track length reconstruction and various TOF measurement techniques, including recently developed machine learning approaches. We will evaluate the performance in terms of $\pi/K$ and $K/p$ separation as a function of momentum, and discuss potential physics applications.
How virtual testing can improve the experimental material property determination
Creators: name: Petersen, E.
Publisher: name: Zenodo
Year: 2016
Subjects: CFRP
virtual testing
material characterization

description: For a beneficial use of composites in lightweight structures the correct determination of material properties is an important issue. Countless static tests are available, which should provide mechanical properties like elasticities, strengths, fracture toughness or internal friction. It can be ascertained that not every test leads to the true mechanical value required for the simulation of composite structures. For the understanding of the different test setups and their applicability for material characterization, modelling the test setup leads to great insights. Especially the knowledge about strain and stress distributions is of high importance. However, additional measurement techniques like digital image correlation or ultrasonic inspection can lead to similar findings and should therefore, if possible, be taken into account. The presentation contains different examples how the use of finite element simulation -containing linear or nonlinear material behavior- helps to decide, if a specific test is suitable to lead to the required material property value. Therefore, the specific test setups are modelled considering the determined material properties as input parameters. From the coincidence of the structural behavior of test and simulation, consequently the validity of the test method can be confirmed and the obtained material value can be used for further simulations.
Anomaly Detection Support Using Process Classification
Creators: name: Eresheim, Sebastian
name: Klausner, Lukas Daniel
name: Kochberger, Patrick
Publisher: name: arXiv
Year: 2021
Subjects: subject: Machine Learning (cs.LG)
subject: Cryptography and Security (cs.CR)
subject: FOS: Computer and information sciences

description: Anomaly detection systems need to consider a lot of information when scanning for anomalies. One example is the context of the process in which an anomaly might occur, because anomalies for one process might not be anomalies for a different one. Therefore data -- such as system events -- need to be assigned to the program they originate from. This paper investigates whether it is possible to infer from a list of system events the program whose behavior caused the occurrence of these system events. To that end, we model transition probabilities between non-equivalent events and apply the $k$-nearest neighbors algorithm. This system is evaluated on non-malicious, real-world data using four different evaluation scores. Our results suggest that the approach proposed in this paper is capable of correctly inferring program names from system events.
description: 14 pages, 6 figures
A Full Quantum Generative Adversarial Network Model for High Energy Physics Simulations
Creators: name: Rehm, Florian Matthias
name: Vallecorsa, Sofia
name: Grossi, Michele
name: Borras, Kerstin
name: Krücker, Dirk
Publisher: name: Deutsches Elektronen-Synchrotron, DESY, Hamburg
Year: 2023
Subjects: network
pixel
hybrid
machine learning
hardware
CERN LHC Coll
showers
calorimeter
neural network

description: The prospect of quantum computing with a potential exponential speed-up compared to classical computing identifies it as a promising method in the search for alternative future High Energy Physics (HEP) simulation approaches. HEP simulations, such as employed at the Large Hadron Collider at CERN, are extraordinarily complex and require an immense amount of computing resources in hardware and time. For some HEP simulations, classical machine learning models have already been successfully developed and tested, resulting in several orders of magnitude speed-up. In this research, we proceed to the next step and explore whether quantum computing can provide sufficient accuracy, and further improvements, suggesting it as an exciting direction of future investigations. With a small prototype model, we demonstrate a full quantum Generative Adversarial Network (GAN) model for generating downsized eight-pixel calorimeter shower images. The advantage over previous quantum models is that the model generates real individual images containing pixel energy values instead of simple probability distributions averaged over a test sample. To complete the picture, the results of the full quantum GAN model are compared to hybrid quantum-classical models using a classical discriminator neural network.
THE URINARY SYSTEM: A VITAL PLAYER IN HUMAN PHYSIOLOGY
Creators: name: Djuraeva, Barno
name: Olloberganova, Dilafruz
name: Davronova, Durdonabegim
Publisher: name: Zenodo
Year: 2024

description: This essay explores the intricate relationship between lifestyle choices and the maintenance of urinary health. It emphasizes the impact of hydration, dietary habits, and various lifestyle factors on the functionality of the urinary system. The essay also highlights healthy practices, including regular physical activity, avoiding smoking, and the importance of seeking professional guidance for preventive healthcare. By addressing the lifestyle aspects influencing urinary health, the essay aims to provide insights into practical strategies for maintaining optimal functioning and preventing potential complications.
Data Cube: A Relational Aggregation Operator Generalizing Group-By, Cross-Tab, and Sub-Totals
Creators: name: Gray, Jim
name: Chaudhuri, Surajit
name: Bosworth, Adam
name: Layman, Andrew
name: Reichart, Don
name: Venkatrao, Murali
name: Pellow, Frank
name: Pirahesh, Hamid
Publisher: name: arXiv
Year: 2007
Subjects: subject: Databases (cs.DB)
subject: FOS: Computer and information sciences

description: Data analysis applications typically aggregate data across many dimensions looking for anomalies or unusual patterns. The SQL aggregate functions and the GROUP BY operator produce zero-dimensional or one-dimensional aggregates. Applications need the N-dimensional generalization of these operators. This paper defines that operator, called the data cube or simply cube. The cube operator generalizes the histogram, cross-tabulation, roll-up, drill-down, and sub-total constructs found in most report writers. The novelty is that cubes are relations. Consequently, the cube operator can be imbedded in more complex non-procedural data analysis programs. The cube operator treats each of the N aggregation attributes as a dimension of N-space. The aggregate of a particular set of attribute values is a point in this space. The set of points forms an N-dimensional cube. Super-aggregates are computed by aggregating the N-cube to lower dimensional spaces. This paper (1) explains the cube and roll-up operators, (2) shows how they fit in SQL, (3) explains how users can define new aggregate functions for cubes, and (4) discusses efficient techniques to compute the cube. Many of these features are being added to the SQL Standard.
Limousine Service Management: Capacity Planning with Predictive Analytics and Optimization
Creators: name: Liu, Peng
name: Chen, Ying
name: Teo, Chung-Piaw
Publisher: name: arXiv
Year: 2020
Subjects: subject: Applications (stat.AP)
subject: FOS: Computer and information sciences

description: The limousine service in luxury hotels is an integral component of the whole customer journey in the hospitality industry. One of the largest hotels in Singapore manages a fleet of both in-house and outsourced vehicles around the clock, serving 9000 trips per month on average. The need for vehicles may scale up rapidly, especially during special events and festive periods in the country. The excess demand is met by having additional outsourced vehicles on standby, incurring millions of dollars of additional expenses per year for the hotel. Determining the required number of limousines by hour of the day is a challenging service capacity planning problem. In this paper, a recent transformational journey to manage this problem in the hotel is introduced, driving up to S\$3.2 million of savings per year with improved service level. The approach builds on widely available open-source statistical and spreadsheet optimization tools, along with robotic process automation, to optimize the schedule of its fleet of limousines and drivers, and to support decision-making for planners/controllers to drive sustained business value.
Data Management: Past, Present, and Future
Creators: name: Gray, Jim
Publisher: name: arXiv
Year: 2007
Subjects: subject: Databases (cs.DB)
subject: FOS: Computer and information sciences

description: Soon most information will be available at your fingertips, anytime, anywhere. Rapid advances in storage, communications, and processing allow us move all information into Cyberspace. Software to define, search, and visualize online information is also a key to creating and accessing online information. This article traces the evolution of data management systems and outlines current trends. Data management systems began by automating traditional tasks: recording transactions in business, science, and commerce. This data consisted primarily of numbers and character strings. Today these systems provide the infrastructure for much of our society, allowing fast, reliable, secure, and automatic access to data distributed throughout the world. Increasingly these systems automatically design and manage access to the data. The next steps are to automate access to richer forms of data: images, sound, video, maps, and other media. A second major challenge is automatically summarizing and abstracting data in anticipation of user requests. These multi-media databases and tools to access them will be a cornerstone of our move to Cyberspace.
Pus ‘ta cabrón : variation of pues in the Spanish of southern San Diego
Creators: name: Avilés González, Luis Felipe
name: 0000-0002-0166-6651
Publisher: name: The University of Texas at Austin
Year: 2023
Subjects: Pues
San Diego
Language variation
Sociolinguistics
Languages in the borderlands
Discourse marker

description: This dissertation documents linguistic variation in the Spanish of the border community of Southern San Diego. A diverse community that comprises recent migrants, established immigrant communities, and heritage speakers, it is an ideal area for linguistic inquiry. This work explores the discourse marker pues, which is ubiquitous in Mexican Spanish, where it is variously translated as 'well', 'so', 'since', and 'then' and presents a wide range of variation in its production. The present study focuses on a four-way distinction, contrasting standard pues [pwes] and three forms that carry social stigma: the archaic pos [pos], the vowel-raised form pus [pus], and the devoiced p's [ps]. The study entertained the following questions: (i) Do the various forms of the discourse marker pues in the Spanish of Southern San Diego differ in frequency of occurrence? and (ii) What are the linguistic (internal) and social (external) factors that condition the various realizations of pues in the Spanish of Southern San Diego? I sought to answer these questions following a quantitative variationist methodology. For that purpose, I analyzed forty-seven (47) sociolinguistic interviews collected between January and June 2022. These interviews were transcribed using Automatic Speech Recognition technology and the resulting transcripts yielded 4,431 tokens of the discourse marker. The study examined the variation in the production of the discourse marker pues as [pwes], [pos], [pus], and [ps] by considering a series of linguistic and social variables. The independent variables: position in the utterance and pragmatic function as internal variables, and gender, generation, social class, and ethno-racial identity as external variables. Statistical analysis of the data was carried out in R. The packages used for random forest and conditional inference trees was party, and the packages ggplot and VGAM were used for visualization and multinomial regression as required. The results show that the variant with the highest frequency in production was [pwes] at 44.93%, closely followed by [pus] at 37.26%. The data further reveal that this variation is conditioned by the social variables of gender, class, and self-reported ethno-racial identity. In particular, gender was a strong indicator for variation, as female speakers overall tended to default to the the standard [pwes], whereas male speakers produced [pus] at higher rates. However, socioeconomic class was seen to condition this variation, with women from the higher class also favoring pus over pues. This dissertation project offers insight into linguistic variation and vitality in an understudied region in Southern California as and contributes to growing research on the sociolinguistics of the borderlands.
Two-parameter Radial Equilibrium Models for Field-Reversed Configurations
Creators: name: Ma, Haojie
name: Xie, Huasheng
name: Bai, Yukun
name: Cheng, Shikui
name: Deng, Bihe
name: Tuszewski, Michel
name: Li, Yang
name: Zhao, Hanyue
name: Chen, Bin
name: Liu, Jinyuan
Publisher: name: arXiv
Year: 2020
Subjects: subject: Plasma Physics (physics.plasm-ph)
subject: FOS: Physical sciences

description: A new equilibrium pressure profile extending the Rigid-Rotor (RR) model with a simple unified expression $P=P(ψ;β_{s},α, σ)$ for both inside and outside the separatrix is proposed, in which the radial normalized field-reversed configuration (FRC) equilibrium profiles for pressure, magnetic field, and current can be determined by only two dimensionless parameters $β_s\equiv P_s/2μ_0B_e^2$ and $δ_s\equiv L_{ps}/R_s$, where $P_s$ is the thermal pressure at the separatrix, $B_e$ is the external magnetic field strength, $L_{ps}$ is the pressure profile scale length at the separatrix, and $R_s$ is the separatrix radius. This modified rigid rotor (MRR) model has sufficient flexibility to accommodate the narrow scrape of layer (SOL) width and hollow current density profiles, and can be used to fit experimental measurements satisfactorily. Detailed one-dimensional (1D) characteristics of the new MRR model are investigated analytically and numerically, and the results are also confirmed in two-dimensional (2D) numerical equilibrium solutions.
description: 10 pages, 9 figures, submitted to Nucl. Fusion
NIT COVID-19 at WNUT-2020 Task 2: Deep Learning Model RoBERTa for Identify Informative COVID-19 English Tweets
Creators: name: S, Jagadeesh M
name: A, Alphonse P J
Publisher: name: arXiv
Year: 2020
Subjects: subject: Computation and Language (cs.CL)
subject: FOS: Computer and information sciences

description: This paper presents the model submitted by the NIT_COVID-19 team for identified informative COVID-19 English tweets at WNUT-2020 Task2. This shared task addresses the problem of automatically identifying whether an English tweet related to informative (novel coronavirus) or not. These informative tweets provide information about recovered, confirmed, suspected, and death cases as well as the location or travel history of the cases. The proposed approach includes pre-processing techniques and pre-trained RoBERTa with suitable hyperparameters for English coronavirus tweet classification. The performance achieved by the proposed model for shared task WNUT 2020 Task2 is 89.14% in the F1-score metric.
description: 5 pages, one figures, conference
Disk illumination by black hole superradiance of electromagnetic perturbations
Creators: name: Kobayashi, Taichi
name: Onda, Kohei
name: Tomimatsu, Akira
Publisher: name: arXiv
Year: 2008
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: Using the Kerr-Schild formalism to solve the Einstein-Maxwell equations, we study energy transport due to time-dependent electromagnetic perturbations around a Kerr black hole, which may work as a mechanism to illuminate a disk located on the equatorial plane. For such a disk-hole system it is found that the energy extraction from the hole can occur under the well-known superradiance condition for wave frequency, even though the energy absorption into the hole should be rather dominant near the polar region of the horizon. We estimate the efficiency of the superradiant amplification of the disk illumination. Further we calculate the time-averaged energy density distribution to show explicitly the existence of a negative energy region near the horizon and to discuss the possible generation of a hot spot on the disk.
description: 11 pages, 4 figures, corrected typos, published in Physical Review D