cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
GESTATSION PIYELONEFRIT: SAMARQAND VILOYATIDAGI HOLAT
Creators: name: Karimov, Xurshid
name: Azzamov, Abror
name: Begimov, Ilhom
name: Shopulotov, Shoxrux
name: Boboqulov, Nurillo
Publisher: name: Zenodo
Year: 2024

description: Piyelonefritda yallig'lanishning surunkali bosqichiga ta'sir etuvchi patogen omil o'zining bosh rolini yo'qotadi. Muhim rol qon va mikrosirkulyatsiyaning reologik xususiyatlari o'zgarishiga ta'sir qiluvchi jarayonlar bilan kechadi, bu surunkali holatning rivojlanishiga olib keladi. Ushbu kasallikning sabablari ona va homila uchun xavf omili bo'lib, perinatal yo'qotishlarga olib keladi.
Iterative Snapping of Odometry Trajectories for Path Identification
Creators: name: Wang, Richard
name: Veloso, Manuela M.
name: Srinivasan  Seshan
Publisher: name: Carnegie Mellon University
Year: 1987
Subjects: subject: 89999 Information and Computing Sciences not elsewhere classified
subject: FOS: Computer and information sciences

description: An increasing number of mobile devices are capable of automatically sensing and recording rich information about the surrounding environment. Spatial locations of such data can help to better learn about the environment. In this work, we address the problem of identifying the locations visited by a mobile device as it moves within an indoor environment. We focus on devices equipped with odometry sensors that capture changes in motion. Odometry suffers from cumulative errors of dead reckoning but it captures the relative shape of the traversed path well. Our approach will correct such errors by matching the shape of the trajectory from odometry to traversable paths of a known map. Our algorithm is inspired by prior vehicular GPS map matching techniques that snap global GPS measurements to known roads. We similarly wish to snap the trajectory from odometry to known hallways. Several modifications are required to ensure these techniques are robust when given relative measurements from odometry. If we assume an office-like environment with only straight hallways, then a significant rotation indicates a transition to another hallway. As a result, we partition the trajectory into line segments based on significant turns. Each trajectory segment is snapped to a corresponding hallway that best maintains the shape of the original trajectory. These snapping decisions are made based on the similarity of the two curves as well as the rotation to transition between hallways. We will show robustness under different types of noise in complex environments and the ability to propose coarse sensor noise errors.
OptShrink: An algorithm for improved low-rank signal matrix denoising by optimal, data-driven singular value shrinkage
Creators: name: Nadakuditi, Raj Rao
Publisher: name: arXiv
Year: 2013
Subjects: subject: Statistics Theory (math.ST)
subject: Information Theory (cs.IT)
subject: Machine Learning (stat.ML)
subject: FOS: Mathematics
subject: FOS: Computer and information sciences

description: The truncated singular value decomposition (SVD) of the measurement matrix is the optimal solution to the_representation_ problem of how to best approximate a noisy measurement matrix using a low-rank matrix. Here, we consider the (unobservable)_denoising_ problem of how to best approximate a low-rank signal matrix buried in noise by optimal (re)weighting of the singular vectors of the measurement matrix. We exploit recent results from random matrix theory to exactly characterize the large matrix limit of the optimal weighting coefficients and show that they can be computed directly from data for a large class of noise models that includes the i.i.d. Gaussian noise case. Our analysis brings into sharp focus the shrinkage-and-thresholding form of the optimal weights, the non-convex nature of the associated shrinkage function (on the singular values) and explains why matrix regularization via singular value thresholding with convex penalty functions (such as the nuclear norm) will always be suboptimal. We validate our theoretical predictions with numerical simulations, develop an implementable algorithm (OptShrink) that realizes the predicted performance gains and show how our methods can be used to improve estimation in the setting where the measured matrix has missing entries.
description: Published version. The algorithm can be downloaded from http://www.eecs.umich.edu/~rajnrao/optshrink
Time-dependent optimized coupled-cluster method for multielectron dynamics
Creators: name: Sato, Takeshi
name: Pathak, Himadri
name: Orimo, Yuki
name: Ishikawa, Kenichi L.
Publisher: name: arXiv
Year: 2017
Subjects: subject: Chemical Physics (physics.chem-ph)
subject: FOS: Physical sciences

description: Time-dependent coupled-cluster method with time-varying orbital functions, called time-dependent optimized coupled- cluster (TD-OCC) method, is formulated for multielectron dynamics in an intense laser field. We have successfully derived equations of motion for CC amplitudes and orthonormal orbital functions based on the real action functional, and implemented the method including double excitations (TD-OCCD) and double and triple excitations (TD-OCCDT) within the optimized active orbitals. The present method is size extensive and gauge invariant, a polynomial cost-scaling alternative to the time-dependent multiconfiguration self-consistent-field method. The first application of the TD-OCC method to intense-laser driven correlated electron dynamics in Ar atom is reported.
Centrality dependent Lévy-stable two-pion Bose-Einstein correlations at the PHENIX experiment
Creators: name: Lökös, Sándor
Publisher: name: arXiv
Year: 2018
Subjects: subject: Nuclear Experiment (nucl-ex)
subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: Investigation of femtoscopic correlation functions in relativistic heavy ion reactions is an important tool to access the space-time structure of particle production in the sQGP. The shape of the correlation functions is often assumed to be Gaussian, but a detailed analysis reveals that the statistically correct assumption could be the so-called Lévy distribution. The detailed analysis of correlation functions in various systems may shed light on the location of the critical endpoint on the QCD phase diagram. It could also reveal if there is partially coherent pion production or could indicate the possible in-medium mass modification of the $η'$ meson due to the (partial) restoration of the $U_A(1)$ axial symmetry. In this paper we present the status of the centrality dependent measurements of two-pion Lévy Bose-Einstein correlation functions in Au+Au collisions at PHENIX.
description: Presented on the 10th Bolyai-Gauss-Lobachevsky conference on non-Euclidean Geometry and its Application
Iterative Row Sampling
Creators: name: Li, Mu
name: Miller, Gary L.
name: Peng, Richard
Publisher: name: Carnegie Mellon University
Year: 1974
Subjects: subject: 89999 Information and Computing Sciences not elsewhere classified
subject: FOS: Computer and information sciences

description: There has been significant interest and progress recently in algorithms that solve regression problems involving tall and thin matrices in input sparsity time. Given a n * d matrix where n ≥ d, these algorithms find an approximation with fewer rows, allowing one to solve a poly(d) sized problem instead. In practice, the best performances are often obtained by invoking these routines in an iterative fashion. We show these iterative methods can be adapted to give theoretical guarantees comparable to and better than the current state of the art. Our approaches are based on computing the importances of the rows, known as leverage scores, in an iterative manner. We show that alternating between computing a short matrix estimate and finding more accurate approximate leverage scores leads to a series of geometrically smaller instances. This gives an algorithm whose runtime is input sparsity plus an overhead comparable to the cost of solving a regression problem on the smaller approximation. Our results build upon the close connection between randomized matrix algorithms, iterative methods, and graph sparsification.
Surface Plasmon mediated near-field imaging and optical addressing in nanoscience
Creators: name: Drezet, A.
name: Hohenau, A.
name: Krenn, J. R.
name: Brun, M.
name: Huant, S.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Optics (physics.optics)
subject: Other Condensed Matter (cond-mat.other)
subject: FOS: Physical sciences

description: We present an overview of recent progress in plasmonics. We focus our study on the observation and excitation of surface plasmon polaritons (SPPs) with optical near-field microscopy. We discuss in particular recent applications of photon scanning tunnelling microscope (PSTM) for imaging of SPP propagating in metal and dielectric wave guides. We show how near-field scanning optical microscopy (NSOM) can be used to optically and actively address remotely nano-objects such as quantum dots. Additionally we compare results obtained with near-field microscopy to those obtained with other optical far-field methods of analysis such as leakage radiation microscopy (LRM).
Delaunay-type hypersurfaces in cohomogeneity one manifolds
Creators: name: Bettiol, Renato G.
name: Piccione, Paolo
Publisher: name: arXiv
Year: 2013
Subjects: subject: Differential Geometry (math.DG)
subject: FOS: Mathematics
subject: 53C42, 58E09, 53A10, 58D10, 58D19, 58J55

description: Classical Delaunay surfaces are highly symmetric constant mean curvature (CMC) submanifolds of space forms. We prove the existence of Delaunay-type hypersurfaces in a large class of compact manifolds, using the geometry of cohomogeneity one group actions and variational bifurcation techniques. Our construction specializes to the classical examples in round spheres, and allows to obtain Delaunay-type hypersurfaces in many other ambient spaces, ranging from complex and quaternionic projective spaces to Kervaire exotic spheres.
description: LaTeX2e, 28 pages, final version
Report on promotional material for LISA
Creators: name: Antonio, Daniela
Publisher: name: Zenodo
Year: 2022

description: The Strategy and Graphical Identity for LISA (Laser Ionisation and Spectroscopy of Actinides) details the strategic aspects of the project’s communications to help determine its identity/voice, as well as the graphic identity. On a first stage, it supported the creation of promotional material destined to represent the LISA network at national and international events, developed with the support of CERN Design Service and EU Communication Officer at CERN, following an editorial and design process in sequence.
Iterative Constructions and Private Data Release
Creators: name: Gupta, Anupam
name: Roth, Aaron
name: Ullman, Jonathan
Publisher: name: Carnegie Mellon University
Year: 1987
Subjects: subject: 89999 Information and Computing Sciences not elsewhere classified
subject: FOS: Computer and information sciences

description: In this paper we study the problem of approximately releasing the cut function of a graph while preserving differential privacy, and give new algorithms (and new analyses of existing algorithms) in both the interactive and non-interactive settings. Our algorithms in the interactive setting are achieved by revisiting the problem of releasing differentially private, approximate answers to a large number of queries on a database. We show that several algorithms for this problem fall into the same basic framework, and are based on the existence of objects which we call iterative database construction algorithms. We give a new generic framework in which new (efficient) IDC algorithms give rise to new (efficient) interactive private query release mechanisms. Our modular analysis simplifies and tightens the analysis of previous algorithms, leading to improved bounds. We then give a new IDC algorithm (and therefore a new private, interactive query release mechanism) based on the Frieze/Kannan low-rank matrix decomposition. This new release mechanism gives an improvement on prior work in a range of parameters where the size of the database is comparable to the size of the data universe (such as releasing all cut queries on dense graphs). We also give a non-interactive algorithm for efficiently releasing private synthetic data for graph cuts with error O(|V|1.5). Our algorithm is based on randomized response and a non-private implementation of the SDP-based, constant-factor approximation algorithm for cut-norm due to Alon and Naor. Finally, we give a reduction based on the IDC framework showing that an efficient, private algorithm for computing sufficiently accurate rank-1 matrix approximations would lead to an improved efficient algorithm for releasing private synthetic data for graph cuts. We leave finding such an algorithm as our main open problem.
A quasi-periodic fast-propagating magnetosonic wave associated with the eruption of a magnetic flux rope
Creators: name: Shen, Yuandeng
name: Liu, Yu
name: Song, Tengfei
name: Tian, Zhanjun
Publisher: name: arXiv
Year: 2017
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: Using high temporal and high spatial resolution observations taken by the Atmospheric Imaging Assembly onboard the Solar Dynamics Observatory, we present the detailed observational analysis of a high quality quasi-periodic fast- propagating (QFP) magnetosonic wave that was associated with the eruption of a magnetic flux rope and a GOES C5.0 flare. For the first time, we find that the QFP wave lasted during the entire flare lifetime rather than only the rising phase of the accompanying flare as reported in previous studies. In addition, the propagation of the different parts of the wave train showed different kinematics and morphologies. For the southern (northern) part, the speed, duration, intensity variation are about 875 +/- 29 (1485 +/- 233) km/s, 45 (60) minutes, and 4% (2%), and the pronounced periods of them are 106 +/- 12 and 160 +/- 18 (75 +/- 10 and 120 +/- 16) seconds, respectively. It is interesting that the northern part of the wave train showed obvious refraction effect when they pass through a region of strong magnetic field. Periodicity analysis result indicates that all the periods of the QFP wave can be found in the period spectrum of the accompanying flare, suggesting their common physical origin. We propose that the quasi-periodic nonlinear magnetohydrodynamics process in the magnetic reconnection that produces the accompanying flare should be important for exciting of QFP wave, and the different magnetic distribution along different paths can account for the different speeds and morphology evolution of the wave fronts.
description: 14 pages, 6 figures, and 2 tables
Neutrino spin rotation in dense matter and electromagnetic field
Creators: name: Arbuzova, E. V.
name: Lobanov, A. E.
name: Murchikova, E. M.
Publisher: name: arXiv
Year: 2007
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: Exact solutions of the Dirac--Pauli equation for massive neutrino with anomalous magnetic moment interacting with dense matter and strong electromagnetic field are found. The complete system of neutrino wavefunctions, which show spin rotation properties are obtained and their possible applications are discussed.
description: 11 pages, latex, misprints are corrected
Recurrent imagery and didactic technique in Lucretius' De rerum natura
Creators: name: Hill, Brian P.
Publisher: name: No Publisher Supplied
Year: 2018

description: In this dissertation, I analyze the recurrence and subtle reformulation of various images over the course of Lucretius’ De rerum natura. In particular, I examine the multifaceted Lucretian technique which I call “incremental didacticism.” By that term, I mean to denote the process by which Lucretius often reintroduces an image which he has used earlier in the poem, such that, with each successive recurrence of that image, its slightly modified presentation poses an increased challenge to the reader in one of a number of ways.In the first two chapters, I focus on the ways in which Lucretius increases the reader’s proximity to the events in question and gradually tests the reader to approach a given challenge with Epicurean equanimity. More specifically, the first chapter analyzes Lucretius’ use of particular military vocabulary as a means of ushering the reader ever closer to the melee of the battlefield and challenging the reader to exercise ataraxic calm in these increasingly trying scenarios. Similarly, in the second chapter, I argue that Lucretius trains his pupil to apply the lessons of the (ever less remote) past to the present day. In the third chapter, I explore another facet of incremental didacticism by arguing that Lucretius applies a common double entendre to his presentation of acorns in the poem. I demonstrate that these suggestive acorns participate in the poet’s demythologization of Venus in the natural world. The fourth chapter explores Lucretius’ use of jar imagery in philosophical argumentation, showing how the poet wrests the image from the hands of would-be philosophical detractors and applies it in ever-shifting fashion as an analogical tool in his exposition of Epicureanism. Over the course of the poem, Lucretius changes the specific referent to which the jar corresponds in these various analogies, and I track the way in which that changing specification demands increased diligence from the reader. In the fifth chapter, I explore the ways in which Lucretius employs clothing imagery as a means of signaling his affinities with the refined poetic aesthetics associated especially with Hellenistic poets, and I identify the various challenges placed on the reader which Lucretius’ subtle method of allusion to these authors entails. In a concluding section, I demonstrate how each of the sets of images studied in this project illuminates a different facet of Lucretius’ program of incremental didacticism, and I point to avenues for further inquiry on the basis of the arguments advanced in this dissertation.
Multiloop Amplitudes of Light-cone Gauge Superstring Field Theory: Odd Spin Structure Contributions
Creators: name: Ishibashi, Nobuyuki
name: Murakami, Koichi
Publisher: name: arXiv
Year: 2017
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We study the odd spin structure contributions to the multiloop amplitudes of light-cone gauge superstring field theory. We show that they coincide with the amplitudes in the conformal gauge with two of the vertex operators chosen to be in the pictures different from the standard choice, namely (-1,-1) picture in the type II case and -1 picture in the heterotic case. We also show that the contact term divergences can be regularized in the same way as in the amplitudes for the even structures and we get the amplitudes which coincide with those obtained from the first-quantized approach.
description: 32 pages, 2 figures
Interlayer Coupling Effect on a Bilayer Kitaev Model
Creators: name: Tomishige, Hiroyuki
name: Nasu, Joji
name: Koga, Akihisa
Publisher: name: arXiv
Year: 2017
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: We investigate a bilayer Kitaev model, where two honeycomb layers are coupled by the Heisenberg interactions, to discuss effects of an interlayer coupling against the Kitaev quantum spin liquids (QSLs). In this model, there exists a local conserved quantity, which results in no long-range spin correlations in the system. Using the exact diagonalization, bond operator mean-field theory, and cluster expansion techniques, we study ground state properties in the system. The obtained results suggest the existence of a first-order quantum phase transition between the Kitaev QSL and singlet-dimer states. We find that one-triplet excitation from the singlet-dimer ground state is localized owing to the existence of the local conserved quantity. To examine finite-temperature properties, we make use of the thermal pure quantum state approach. We clarify that double-peak structure in the specific heat inherent in the Kitaev QSL is maintained even above the quantum phase transition. The present results suggest that the Kitaev QSL is stable against the interlayer interference. Magnetic properties of multilayer Kitaev models are also addressed.
description: 8 pages, 8 figures
Pseudogap and electronic structure of electron-doped Sr$_2$IrO$_4$
Creators: name: Moutenet, Alice
name: Georges, Antoine
name: Ferrero, Michel
Publisher: name: arXiv
Year: 2018
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: We present a theoretical investigation of the effects of correlations on the electronic structure of the Mott insulator Sr$_2$IrO$_4$ upon electron doping. A rapid collapse of the Mott gap upon doping is found, and the electronic structure displays a strong momentum-space differentiation at low doping level: The Fermi surface consists of pockets centered around $(π/2,π/2)$, while a pseudogap opens near $(π,0)$. Its physical origin is shown to be related to short-range spin correlations. The pseudogap closes upon increasing doping, but a differentiated regime characterized by a modulation of the spectral intensity along the Fermi surface persists to higher doping levels. These results, obtained within the cellular dynamical mean-field theory framework, are discussed in comparison to recent photoemission experiments and an overall good agreement is found.
Issues in symbol processing
Creators: name: Touretzky, David S
name: Artificial Intelligence And Psychology Project.
Publisher: name: Carnegie Mellon University
Year: 2007
Subjects: subject: 89999 Information and Computing Sciences not elsewhere classified
subject: FOS: Computer and information sciences

description: Abstract: "The notion of mind as symbol processor is fundamental to AI and cognitive science, but some connectionists are now arguing against it. Eliminative connectionism challenges the validity of formal symbol manipulation as a level of mental description. We review some of the claims that have been made, and argue that most connectionist models, especially those constructed by learning algorithms, are operating at the level of pattern classifiers. Their (rather limited) success using non-symbolic representations demonstrates that they have not yet even approached the tasks which symbol processing models attempt to solve. Continued progress in connectionist research may require reimplementation rather than rejection of the symbolic level."
Neutrino Physics and CP violation
Creators: name: Branco, G. C.
name: Rebelo, M. N.
Publisher: name: arXiv
Year: 2007
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We review some aspects of neutrino physics and CP violation both in the quark and lepton sectors.
description: Presented by G. C. Branco at Cracow School of Theoretical Physics: 47th Course 2007: New Developments in Astrophysics and Astroparticle Physics, Zakopane, Poland, 14-22 Jun 2007
Additional file 5 of The signature of HBV-related liver disease in peripheral blood mononuclear cell DNA methylation
Creators: name: Li, Kang
name: Qin, Ling
name: Jiang, Sanjie
name: Li, Ang
name: Zhang, Chi
name: Liu, Guihai
name: Sun, Jianping
name: Sun, Huanqing
name: Zhao, Yan
name: Li, Ning
name: Zhang, Yonghong
Publisher: name: figshare
Year: 2020
Subjects: subject: Medicine
subject: Genetics
subject: FOS: Biological sciences
subject: Molecular Biology
subject: Chemical Sciences not elsewhere classified
subject: Immunology
subject: FOS: Clinical medicine
subject: Biological Sciences not elsewhere classified
subject: Cancer
subject: Infectious Diseases
subject: FOS: Health sciences

description: Additional file 5:. Supplementary table 5. Results of confusion matrix analysis of CpG sites model and LC model
Local Magnetic Measurements of Trapped Flux Through a Permanent Current Path in Graphite
Creators: name: Stiller, Markus
name: Esquinazi, Pablo D.
name: Barzola-Quiquia, Jose
name: Precker, Christian E.
Publisher: name: arXiv
Year: 2018
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: Temperature and field dependent measurements of the electrical resistance of different natural graphite samples, suggest the existence of superconductivity at room temperature in some regions of the samples. To verify whether dissipationless electrical currents are responsible for the trapped magnetic flux inferred from electrical resistance measurements, we localized them using magnetic force microscopy on a natural graphite sample in remanent state after applying a magnetic field. The obtained evidence indicates that at room temperature a permanent current flows at the border of the trapped flux region. The current path vanishes at the same transition temperature $T_c\approx370$~K as the one obtained from electrical resistance measurements on the same sample. This sudden decrease of the phase is different from what is expected for a ferromagnetic material. Time dependent measurements of the signal show the typical behavior of flux creep of a permanent current flowing in a superconductor. The overall results support the existence of room-temperature superconductivity at certain regions in the graphite structure and indicate that magnetic force microscopy is suitable to localize them. Magnetic coupling is excluded as origin of the observed phase signal.
description: 10 pages, 9 Figures
The Normal Form Theorem around Poisson Transversals
Creators: name: Frejlich, Pedro
name: Marcut, Ioan
Publisher: name: arXiv
Year: 2013
Subjects: subject: Symplectic Geometry (math.SG)
subject: Differential Geometry (math.DG)
subject: FOS: Mathematics

description: We prove a normal form theorem for Poisson structures around Poisson transversals (also called cosymplectic submanifolds), which simultaneously generalizes Weinstein's symplectic neighborhood theorem from symplectic geometry and Weinstein's splitting theorem. Our approach turns out to be essentially canonical, and as a byproduct, we obtain an equivariant version of the latter theorem.
description: 15 pages; v2: the title was changed; v3: proof of Lemma 2 was included
Coordinates, observables and symmetry in relativity
Creators: name: Westman, Hans
name: Sonego, Sebastiano
Publisher: name: arXiv
Year: 2007
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We investigate the interplay and connections between symmetry properties of equations, the interpretation of coordinates, the construction of observables, and the existence of physical relativity principles in spacetime theories. Using the refined notion of an event as a ``point-coincidence'' between scalar fields that completely characterise a spacetime model, we also propose a natural generalisation of the relational local observables that does not require the existence of four everywhere invertible scalar fields. The collection of all point-coincidences forms in generic situations a four-dimensional manifold, that is naturally identified with the physical spacetime.
description: 37 pages
Suppressed phase variations in a high amplitude rapidly oscillating Ap star pulsating in a distorted quadrupole mode
Creators: name: Holdsworth, Daniel L.
name: Saio, Hideyuki
name: Bowman, Dominic M.
name: Kurtz, Donald W.
name: Sefako, Ramotholo R.
name: Joyce, Meridith
name: Lambert, Trystan
name: Smalley, Barry
Publisher: name: arXiv
Year: 2018
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: We present the results of a multisite photometric observing campaign on the rapidly oscillating Ap (roAp) star 2MASS 16400299-0737293 (J1640; $V=12.7$). We analyse photometric $B$ data to show the star pulsates at a frequency of $151.93$ d$^{-1}$ ($1758.45 μ$Hz; $P=9.5$ min) with a peak-to-peak amplitude of 20.68 mmag, making it one of the highest amplitude roAp stars. No further pulsation modes are detected. The stellar rotation period is measured at $3.6747\pm0.0005$ d, and we show that rotational modulation due to spots is in anti-phase between broadband and $B$ observations. Analysis and modelling of the pulsation reveals this star to be pulsating in a distorted quadrupole mode, but with a strong spherically symmetric component. The pulsational phase variation in this star is suppressed, leading to the conclusion that the contribution of $\ell>2$ components dictate the shape of phase variations in roAp stars that pulsate in quadrupole modes. This is only the fourth time such a strong pulsation phase suppression has been observed, leading us to question the mechanisms at work in these stars. We classify J1640 as an A7 Vp SrEu(Cr) star through analysis of classification resolution spectra.
description: 15 pages, 12 figure, 9 tables, accepted for publication in MNRAS
Supersymmetric field theory with benign ghosts
Creators: name: Smilga, A. V.
Publisher: name: arXiv
Year: 2013
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We construct a supersymmetric (1+1)-dimensional field theory involving extra derivatives and associated ghosts: the spectrum of the Hamiltonian is not bounded from below, neither from above. In spite of that, there is neither classical, nor quantum collapse and unitarity is preserved.
description: Final version published in J.Phys. A; 8 pages, 3 figures
Issues in Requirements Elicitation
Creators: name: Christel, Michael G
name: Kang, Kyo C
Publisher: name: Carnegie Mellon University
Year: 2007
Subjects: subject: 89999 Information and Computing Sciences not elsewhere classified
subject: FOS: Computer and information sciences

description: There are many problems associated with requirements engineering, including problems in defining the system scope, problems in fostering understanding among the different communities affected by the development of a given system, and problems in dealing with the volatile nature of requirements. These problems may lead to poor requirements and the cancellation of system development, or else the development of a system that is later judged unsatisfactory or unacceptable, has high maintenance costs, or undergoes frequent changes. By improving requirements elicitation, the requirements engineering process can be improved, resulting in enhanced system requirements and potentially a much better system. Requirements engineering can be decomposed into the activities of requirements elicitation, specification, and validation. Most of the requirements techniques and tools today focus on specification, i.e., the representation of the requirements. This report concentrates instead on elicitation concerns, those problems with requirements engineering that are not adequately addressed by specification techniques. An elicitation methodology is proposed to handle these concerns. This new elicitation methodology strives to incorporate the advantages of existing elicitation techniques while comprehensively addressing the activities performed during requirements elicitation. These activities include fact-finding, requirements gathering, evaluation and rationalization, prioritization, and integration. Taken by themselves, existing elicitation techniques are lacking in one or more of these areas.
Chamomile as a potential remedy for obesity and metabolic syndrome
Creators: name: Bayliak, Maria M.
name: Dmytriv, Tetiana R.
name: Melnychuk, Antonina V.
name: Strilets, Nadia V.
name: Storey, Kenneth B.
name: Lushchak, Volodymyr I.
Publisher: name: IfADo - Leibniz Research Centre for Working Environment and Human Factors, Dortmund
Year: 2021
Subjects: chamomile
polyphenols
inflammation
pro-oxidant
Nrf2
PPARγ

description: Obesity is an increasing health concern related to many metabolic disorders, including metabolic syndrome, diabetes type 2 and cardiovascular diseases. Many studies suggest that herbal products can be useful dietary supplements for weight management due to the presence of numerous biologically active compounds, including antioxidant polyphenols that can counteract obesity-related oxidative stress. In this review we focus on Matricaria cha-momilla, commonly known as chamomile, and one of the most popular medicinal plants in the world. Thanks to a high content of phenolic compounds and essential oils, preparations from chamomile flowers demonstrate a number of pharmacological effects, including antioxidant, anti-inflammatory, antimicrobial and sedative actions as well as improving gastrointestinal function. Several recent studies have shown certain positive effects of chamomile preparations in the prevention of obesity and complications of diabetes. These effects were associated with modulation of signaling pathways involving the AMP-activated protein kinase, NF-κB, Nrf2 and PPARγ transcription factors. However, the potential of chamomile in the management of obesity seems to be underestimated. This review summarizes current data on the use of chamomile and its individual components (apigenin, luteolin, essential oils) to treat obesity and related metabolic disorders in cell and animal models and in human studies. Special attention is paid to molecular mechanisms that can be involved in the anti-obesity effects of chamomile preparations. Limitation of chamomile usage is also analyzed.
description: EXCLI Journal; 20:Doc1261; ISSN 1611-2156
Profiniteness in finitely generated varieties is undecidable
Creators: name: Nurakunov, Anvar M.
name: Stronkowski, Michał M.
Publisher: name: arXiv
Year: 2017
Subjects: subject: Logic (math.LO)
subject: General Topology (math.GN)
subject: FOS: Mathematics
subject: 22A30, 03D35, 03C05, 06E15, 08B25

description: Profinite algebras are exactly those that are isomorphic to inverse limits of finite algebras. Such algebras are naturally equipped with Boolean topologies. A variety $\mathcal V$ is standard if every Boolean topological algebra with the algebraic reduct in $\mathcal V$ is profinite. We show that there is no algorithm which takes as input a finite algebra $\mathbf A$ of a finite type and decide whether the variety ${\mathcal V}({\mathbf A})$ generated by ${\mathbf A}$ is standard. We also show the undecidability of some related properties. In particular, we solve a problem posed by Clark, Davey, Freese and Jackson. We accomplish this by combining two results. The first one is Moore's result saying that there is no algorithm which takes as input a finite algebra $\mathbf A$ of a finite type and decides whether ${\mathcal V}({\mathbf A})$ has definable principal subcongruences. The second is our result saying that possessing definable principal subcongruences yields possessing finitely determined syntactic congruences for varieties. The latter property is known to yield standardness.
Is Approval Voting Optimal Given Approval Votes?
Creators: name: Procaccia, Ariel D.
name: Nisarg  Shah
Publisher: name: Carnegie Mellon University
Year: 2005
Subjects: subject: 89999 Information and Computing Sciences not elsewhere classified
subject: FOS: Computer and information sciences

description: Some crowdsourcing platforms ask workers to express their opinions by approving a set of k good alternatives. It seems that the only reasonable way to aggregate these k-approval votes is the approval voting rule, which simply counts the number of times each alternative was approved. We challenge this assertion by proposing a probabilistic framework of noisy voting, and asking whether approval voting yields an alternative that is most likely to be the best alternative, given k-approval votes. While the answer is generally positive, our theoretical and empirical results call attention to situations where approval voting is suboptimal.
New force replica exchange method and protein folding pathways probed by force-clamp technique
Creators: name: Kouza, Maksim
name: Hu, Chin-Kun
name: Li, Mai Suan
Publisher: name: arXiv
Year: 2007
Subjects: subject: Biomolecules (q-bio.BM)
subject: FOS: Biological sciences

description: We have developed a new extended replica exchange method to study thermodynamics of a system in the presence of external force. Our idea is based on the exchange between different force replicas to accelerate the equilibrium process. We have shown that the refolding pathways of single ubiquitin depend on which terminus is fixed. If the N-end is fixed then the folding pathways are different compared to the case when both termini are free, but fixing the C-terminal does not change them. Surprisingly, we have found that the anchoring terminal does not affect the pathways of individual secondary structures of three-domain ubiquitin, indicating the important role of the multi-domain construction. Therefore, force-clamp experiments, in which one end of a protein is kept fixed, can probe the refolding pathways of a single free-end ubiquitin if one uses either the poly-ubiquitin or a single domain with the C-terminus anchored. However, it is shown that anchoring one end does not affect refolding pathways of the titin domain I27, and the force-clamp spectroscopy is always capable to predict folding sequencing of this protein. We have obtained the reasonable estimate for unfolding barrier of ubiqutin. The linkage between residue Lys48 and the C-terminal of ubiquitin is found to have the dramatic effect on the location of the transition state along the end-to-end distance reaction coordinate, but the multi-domain construction leaves the transition state almost unchanged. We have found that the maximum force in the force-extension profile from constant velocity force pulling simulations depends on temperature nonlinearly. However, for some narrow temperature interval this dependence becomes linear, as have been observed in recent experiments.
description: 37 pages, 1 table, 11 figures, accepted for publication in JCP
The synthesis of bottlebrushes with improved longer side chains by combining grafting through and grafting from methods
Creators: name: Xiao, Lifen
name: Zhu, Xiaoming
name: Li, Liang
name: Lin, Dongyang
name: Huang, Geng
name: Li, Wei
Publisher: name: Taylor & Francis
Year: 2023
Subjects: Biophysics
Biochemistry
Physical Sciences not elsewhere classified
Medicine
Pharmacology
Biotechnology
Chemical Sciences not elsewhere classified
Biological Sciences not elsewhere classified
Hematology

description: Bottlebrushes have intensive applications in photonics, surfactants, supersoft elastomers, medical imaging, drug delivery and nanomaterials owing to their unique morphology and properties. While the traditional grafting from method required low monomer conversion to avoid gelation, and resulted shorter side chain length. Compared with the traditional grafting from method, the bottlebrushes with improved longer side chains were successfully prepared by combining grafting through and grafting from methods. In this approach, RAFT and ROMP polymerizations were used in sequence to synthesize a series of main chains: including PNB-PMA7, PNB-PMA13 and PNB-PMA25. RAFT polymerization was then used to prepare bottlebrushes with different kinds of main chains under the same conditions. In the meantime, homo-polymerization of PMA was appeared inevitably, which was related to the polymerization time. Owing to the greater molecular weight of PNB-PMA13 and PNB-PMA25, the polymerized solutions transformed into gel in shorter time, and resulted to the lower proportion of homo-polymerization (<11%). Compared with PNB-SCS as main chain, the side chain’s degree of polymerization increased from 41 to 80 when PNB-PMA13 was used as main chain.
Full-sky maps for gravitational lensing of the CMB
Creators: name: Carbone, Carmelita
name: Springel, Volker
name: Baccigalupi, Carlo
name: Bartelmann, Matthias
name: Matarrese, Sabino
Publisher: name: arXiv
Year: 2007
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We use the large cosmological Millennium Simulation (MS) to construct the first all-sky maps of the lensing potential and the deflection angle, aiming at gravitational lensing of the CMB, with the goal of properly including small-scale non-linearities and non-Gaussianity. Exploiting the Born approximation, we implement a map-making procedure based on direct ray-tracing through the gravitational potential of the MS. We stack the simulation box in redshift shells up to $z\sim 11$, producing continuous all-sky maps with arcminute angular resolution. A randomization scheme avoids repetition of structures along the line of sight and structures larger than the MS box size are added to supply the missing contribution of large-scale (LS) structures to the lensing signal. The angular power spectra of the projected lensing potential and the deflection-angle modulus agree quite well with semi-analytic estimates on scales down to a few arcminutes, while we find a slight excess of power on small scales, which we interpret as being due to non-linear clustering in the MS. Our map-making procedure, combined with the LS adding technique, is ideally suited for studying lensing of CMB anisotropies, for analyzing cross-correlations with foreground structures, or other secondary CMB anisotropies such as the Rees-Sciama effect.
description: LaTeX file, 10 pages, MNRAS in press, scales larger than the Millennium Simulation box size semi-analytically added, maps changed, references added, typos corrected
Investigations on Ensemble Based Semi-Supervised Acoustic Model Training
Creators: name: Zhang, Rong
name: Bawab, Ziad Al
name: Chan, Arthur
name: Ananlada  Chotimongkol
name: Huggins-Daines, David
name: Rudnicky, Alexander
Publisher: name: Carnegie Mellon University
Year: 2005
Subjects: subject: 89999 Information and Computing Sciences not elsewhere classified
subject: FOS: Computer and information sciences

description: Computer Science Department
Cosmic Axion Spin Precession Experiment (CASPEr)
Creators: name: Budker, Dmitry
name: Graham, Peter W.
name: Ledbetter, Micah
name: Rajendran, Surjeet
name: Sushkov, Alex
Publisher: name: arXiv
Year: 2013
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: Other Condensed Matter (cond-mat.other)
subject: High Energy Physics - Experiment (hep-ex)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We propose an experiment to search for QCD axion and axion-like-particle (ALP) dark matter. Nuclei that are interacting with the background axion dark matter acquire time-varying CP-odd nuclear moments such as an electric dipole moment. In analogy with nuclear magnetic resonance, these moments cause precession of nuclear spins in a material sample in the presence of an electric field. Precision magnetometry can be used to search for such precession. An initial phase of this experiment could cover many orders of magnitude in ALP parameter space beyond the current astrophysical and laboratory limits. And with established techniques, the proposed experimental scheme has sensitivity to QCD axion masses m_a < 10^-9 eV, corresponding to theoretically well-motivated axion decay constants f_a > 10^16 GeV. With further improvements, this experiment could ultimately cover the entire range of masses m_a < 10^-6 eV, complementary to cavity searches.
description: 11 pages, 2 figures, 1 table. v2: Reordered sections and minor modifications to agree with published version
Structure of the Radio Source 3C 120 at 8.4 GHz from VLBA+ Observations in 2002
Creators: name: Bajkova, Anisa T.
name: Pushkarev, Aleksandr B.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: Maps of the radio source 3C 120 obtained from VLBA+ observations at 8.4 GHz at five epochs in January - September 2002 are presented. The images were reconstructed using the maximum entropy method and the Pulkovo VLBImager software package for VLBI mapping. Apparent superluminal motions of the brightest jet knots have been estimated. The speeds of jet knots decreases with distance from the core, changing from 5.40+-0.48c $ to 2.00+-0.48c over 10 mas (where c is the speed of light) for a Hubble constant of 65 km/s/Mpc. This can be explained by interaction of the jet with the medium through which it propagates.
description: 9 pages, 6 figures, 5 tables
Ads spacetime in Lorentz covariant gauges
Creators: name: Valtancoli, Paolo
Publisher: name: arXiv
Year: 2018
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We show how to generate the AdS spacetime metric in general Lorentz covariant gauges. In particular we propose an iterative method for solving the Lorentz gauge.
description: 9 pages, no figures
Philadelphia-positive acute lymphoblastic leukemia in a case of MPL p.(W515L) variant essential thrombocythemia: case report and literature review
Creators: name: Ma, Jiale
name: Chen, Shan
name: Huang, Yanqing
name: Zi, Jie
name: Ma, Jinlong
name: Ge, Zheng
Publisher: name: Taylor & Francis
Year: 2021
Subjects: subject: Medicine
subject: Genetics
subject: FOS: Biological sciences
subject: Pharmacology
subject: Biotechnology
subject: Ecology
subject: Immunology
subject: FOS: Clinical medicine
subject: Cancer
subject: Hematology
subject: Infectious Diseases
subject: FOS: Health sciences
subject: Plant Biology

description: Acute lymphoblastic leukemia (ALL) arising in preexisting myeloproliferative neoplasms (MPN) is rare with historical cases unable to differentiate between concomitant malignancies or leukemic transformation. Here, we report a case of patient with Philadelphia positive B lymphoblastic leukemia (Ph+ALL) who developed from MPL-mutated essential thrombocythemia (ET) 13 years after initial presentation. Molecular studies showed the discrepancy between the high percentage of lymphocyte blasts (91%) and the low MPL p.(W515L) variant allele frequency (2.59%) at diagnosis in the bone marrow, indicating that the Ph+ALL clone did not originate from the ET clone carrying the MPL p.(W515L) variant. After the treatment of a new tyrosine kinase inhibitor flumatinib and prednisolone, cytogenetic and molecular remission had been achieved rapidly and followed by the recovery of original ET manifestation. Although relapsed eventually, this is still a very rare case of simultaneous presence of two cytogenetics abnormalities and evolution of MPL p.(W515L) variant ET to Ph+ALL and may provide evidence to illustrate the clonal relationship of MPN and post-MPN ALL.