cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Generalized Attractor Points in Gauged Supergravity
Creators: name: Kachru, Shamit
name: Kallosh, Renata
name: Shmakova, Marina
Publisher: name: arXiv
Year: 2011
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: The attractor mechanism governs the near-horizon geometry of extremal black holes in ungauged 4D N=2 supergravity theories and in Calabi-Yau compactifications of string theory. In this paper, we study a natural generalization of this mechanism to solutions of arbitrary 4D N=2 gauged supergravities. We define generalized attractor points as solutions of an ansatz which reduces the Einstein, gauge field, and scalar equations of motion to algebraic equations. The simplest generalized attractor geometries are characterized by non-vanishing constant anholonomy coefficients in an orthonormal frame. Basic examples include Lifshitz and Schrodinger solutions, as well as AdS and dS vacua. There is a generalized attractor potential whose critical points are the attractor points, and its extremization explains the algebraic nature of the equations governing both supersymmetric and non-supersymmetric attractors.
description: 31 pages, LaTeX; v2, references fixed; v3, minor changes, version to appear in Phys. Rev. D
VCIOM-SPUTNIK Poll: June 2021
Creators: name: VCIOM (Russian Public Opinion Research Center)
Publisher: name: Roper Center for Public Opinion Research
Year: 2021

description: President of Russia approval (1); Prime Minister approval (1); State Duma of Russia (2); political party preference (2); mass protests (2); Internet usage (1); watch TV (1); trade unions (1); judicial system (1); Russian Orthodox church (1); personal financial situation (2); employment (2); sources of income (1); most important problems (5); rise in prices, inflation (2); Russian ruble and US dollar exchange rate fluctuations (3); unemployment (2); take out loans (2); spend or save money (1); savings (1); economic policy (1); social policy (1); foreign policy (1); direction of country (1); life satisfaction (2).
A single fermion in a Bose Josephson Junction
Creators: name: Rinck, Maximilian
name: Bruder, Christoph
Publisher: name: arXiv
Year: 2010
Subjects: subject: Quantum Gases (cond-mat.quant-gas)
subject: FOS: Physical sciences

description: We consider the tunneling properties of a single fermionic impurity immersed in a Bose-Einstein condensate in a double-well potential. For strong boson-fermion interaction, we show the existence of a tunnel resonance where a large number of bosons and the fermion tunnel simultaneously. We give analytical expressions for the lineshape of the resonance using degenerate Brillouin-Wigner theory. We finally compute the time-dependent dynamics of the mixture. Using the fermionic tunnel resonances as beam splitter for wave-functions, we construct a Mach-Zehnder interferometer that allows complete population transfer from one well to the other by tilting the double-well potential and only taking into account the fermion's tunnel properties.
title: Ð Ð°Ð·ÑÐ°Ð±Ð¾ÑÐºÐ° Ð±Ð¸Ð±Ð»Ð¸Ð¾ÑÐµÐºÐ¸ Ð´Ð»Ñ Ð²Ð¸Ð·ÑÐ°Ð»Ð¸Ð·Ð°ÑÐ¸Ð¸ ÑÑÑÑ Ð¼ÐµÑÐ½ÑÑ ÑÑÐµÐ½ Ñ Ð¸ÑÐ¿Ð¾Ð»ÑÐ·Ð¾Ð²Ð°Ð½Ð¸ÐµÐ¼ Ð³Ð¸Ð±ÑÐ¸Ð´Ð½ÑÑ Ð¼ÐµÑÐ¾Ð´Ð¾Ð² ÑÐµÐ½Ð´ÐµÑÐ¸Ð½Ð³Ð°
title: Ð²ÑÐ¿ÑÑÐºÐ½Ð°Ñ ÐºÐ²Ð°Ð»Ð¸ÑÐ¸ÐºÐ°ÑÐ¸Ð¾Ð½Ð½Ð°Ñ ÑÐ°Ð±Ð¾ÑÐ° Ð¼Ð°Ð³Ð¸ÑÑÑÐ°
titleType: Subtitle
title: Development of a library for visualization of three-dimensional scenes using hybrid rendering methods
Creators: name: ÐÐµÑÐµÐ»Ð¾Ð², ÐÐ»ÐµÐºÑÐ°Ð½Ð´Ñ
Publisher: name: Ð¡Ð°Ð½ÐºÑ-ÐÐµÑÐµÑÐ±ÑÑÐ³ÑÐºÐ¸Ð¹ Ð¿Ð¾Ð»Ð¸ÑÐµÑÐ½Ð¸ÑÐµÑÐºÐ¸Ð¹ ÑÐ½Ð¸Ð²ÐµÑÑÐ¸ÑÐµÑ ÐÐµÑÑÐ° ÐÐµÐ»Ð¸ÐºÐ¾Ð³Ð¾
Year: 2020
Subjects: ÑÐ¸Ð·Ð¸ÑÐµÑÐºÐ¸-ÐºÐ¾ÑÑÐµÐºÑÐ½ÑÐ¹ ÑÐµÐ½Ð´ÐµÑÐ¸Ð½Ð³
Ð³Ð¸Ð±ÑÐ¸Ð´Ð½ÑÐ¹ ÑÐµÐ½Ð´ÐµÑÐ¸Ð½Ð³
Ð¼ÐµÑÐ¾Ð´ ÐÐ¾Ð½ÑÐµ-ÐÐ°ÑÐ»Ð¾
ÑÑÐ°ÑÑÐ¸ÑÐ¾Ð²ÐºÐ° Ð¿ÑÑÐ¸
ÑÑÐ°ÑÑÐ¸ÑÐ¾Ð²ÐºÐ° Ð»ÑÑÐµÐ¹
Ð¿Ð°ÑÐ°Ð»Ð»ÐµÐ»ÑÐ½ÑÐµ Ð²ÑÑÐ¸ÑÐ»ÐµÐ½Ð¸Ñ
Ð³ÑÐ°ÑÐ¸ÑÐµÑÐºÐ¸Ð¹ Ð¿ÑÐ¾ÑÐµÑÑÐ¾Ñ
ÑÐ¸Ð»ÑÑÑÐ°ÑÐ¸Ñ Ð¸Ð·Ð¾Ð±ÑÐ°Ð¶ÐµÐ½Ð¸Ð¹
physically-based rendering
hybrid rendering
Monte Carlo method
ray tracing
path tracing
parallel computing
GPU
image filtering
denoising

description: ÐÐ°Ð½Ð½Ð°Ñ ÑÐ°Ð±Ð¾ÑÐ° Ð¿Ð¾ÑÐ²ÑÑÐµÐ½Ð° ÑÐ¾Ð·Ð´Ð°Ð½Ð¸Ñ Ð¿ÑÐ¾Ð³ÑÐ°Ð¼Ð¼Ð½Ð¾Ð³Ð¾ Ð¿ÑÐ¾Ð´ÑÐºÑÐ° Ð´Ð»Ñ ÑÐ¸Ð·Ð¸ÑÐµÑÐºÐ¸-ÐºÐ¾ÑÑÐµÐºÑÐ½Ð¾Ð¹ Ð²Ð¸Ð·ÑÐ°Ð»Ð¸Ð·Ð°ÑÐ¸Ð¸ ÑÑÑÑÐ¼ÐµÑÐ½ÑÑ ÑÑÐµÐ½ Ð² ÑÐµÐ°Ð»ÑÐ½Ð¾Ð¼ Ð²ÑÐµÐ¼ÐµÐ½Ð¸. ÐÑÐ¸ ÐµÐ³Ð¾ ÑÐ°Ð·ÑÐ°Ð±Ð¾ÑÐºÐµ Ð±ÑÐ»Ð¸ Ð¸ÑÑÐ»ÐµÐ´Ð¾Ð²Ð°Ð½Ñ Ð½Ð°Ð¸Ð±Ð¾Ð»ÐµÐµ ÑÐ¾Ð²ÑÐµÐ¼ÐµÐ½Ð½ÑÐµ Ð°Ð»Ð³Ð¾ÑÐ¸ÑÐ¼Ñ Ð¸Ð½ÑÐµÑÐ°ÐºÑÐ¸Ð²Ð½Ð¾Ð³Ð¾ ÑÐµÐ½Ð´ÐµÑÐ¸Ð½Ð³Ð°, Ð° ÑÐ°ÐºÐ¶Ðµ Ð¿ÑÐµÐ´Ð»Ð¾Ð¶ÐµÐ½Ñ ÑÐ¾Ð±ÑÑÐ²ÐµÐ½Ð½ÑÐµ Ð¿Ð¾Ð´ÑÐ¾Ð´Ñ. ÐÑÐ¾Ð±ÐµÐ½Ð½Ð¾ÑÑÑÑ Ð¿ÑÐ¾Ð³ÑÐ°Ð¼Ð¼Ð½Ð¾Ð³Ð¾ Ð¿ÑÐ¾Ð´ÑÐºÑÐ° ÑÐ²Ð»ÑÐµÑÑÑ Ð»ÐµÐ¶Ð°ÑÐ¸Ð¹ Ð² ÐµÐ³Ð¾ Ð¾ÑÐ½Ð¾Ð²Ðµ Ð¼ÐµÑÐ¾Ð´ Ð³Ð¸Ð±ÑÐ¸Ð´Ð½Ð¾Ð³Ð¾ ÑÐµÐ½Ð´ÐµÑÐ¸Ð½Ð³Ð°, Ð¿ÑÐ¸ ÐºÐ¾ÑÐ¾ÑÐ¾Ð¼ Ð¿ÐµÑÐµÐ½Ð¾Ñ Ð¾ÑÐ²ÐµÑÐµÐ½Ð¸Ñ ÑÐ°Ð·Ð±Ð¸Ð²Ð°ÐµÑÑÑ Ð½Ð° Ð¾ÑÐ´ÐµÐ»ÑÐ½ÑÐµ ÑÐ¾ÑÑÐ°Ð²Ð»ÑÑÑÐ¸Ðµ, Ð²ÑÑÐ¸ÑÐ»ÑÐµÐ¼ÑÐµ Ñ Ð¸ÑÐ¿Ð¾Ð»ÑÐ·Ð¾Ð²Ð°Ð½Ð¸ÐµÐ¼ Ð½Ð°Ð¸Ð±Ð¾Ð»ÐµÐµ Ð¿Ð¾Ð´ÑÐ¾Ð´ÑÑÐ¸Ñ Ð´Ð»Ñ Ð½Ð¸Ñ Ð°Ð»Ð³Ð¾ÑÐ¸ÑÐ¼Ð¾Ð². Ð­ÑÐ¾ Ð¿Ð¾Ð·Ð²Ð¾Ð»ÑÐµÑ ÑÑÑÐµÑÑÐ²ÐµÐ½Ð½Ð¾ Ð¿Ð¾Ð²ÑÑÐ¸ÑÑ Ð¿ÑÐ¾Ð¸Ð·Ð²Ð¾Ð´Ð¸ÑÐµÐ»ÑÐ½Ð¾ÑÑÑ Ð¿Ð¾ ÑÑÐ°Ð²Ð½ÐµÐ½Ð¸Ñ Ñ Ð¼ÐµÑÐ¾Ð´Ð¾Ð¼ ÑÑÐ°ÑÑÐ¸ÑÐ¾Ð²ÐºÐ¸ Ð¿ÑÑÐ¸, ÑÐ¾ÑÑÐ°Ð½Ð¸Ð² ÑÐ¾ÑÐ¾ÑÐµÐ°Ð»Ð¸ÑÑÐ¸ÑÐ½Ð¾ÑÑÑ Ð¸Ð·Ð¾Ð±ÑÐ°Ð¶ÐµÐ½Ð¸Ñ.
description: The master's thesis is devoted to creating a software product for physically correct visualization of three-dimensional scenes in real time. During its development, the state-of-the-art rendering algorithms were investigated, and we proposed our own approaches. The main feature of the software product is the hybrid method in which the light transport is split into individual components, each of them is calculated using the most suitable algorithm. This allows to significantly improve performance compared to the path tracing method, while maintaining the photorealistic result.
Non-adiabatic derivative coupling elements for the coupled cluster singles and doubles model
Creators: name: Kjønstad, Eirik F.
name: Koch, Henrik
Publisher: name: arXiv
Year: 2023
Subjects: subject: Chemical Physics (physics.chem-ph)
subject: FOS: Physical sciences

description: We present an efficient implementation of analytical non-adiabatic derivative coupling elements for the coupled cluster singles and doubles model. The derivative coupling elements are evaluated in a biorthonormal formulation in which the nuclear derivative acts on the right electronic state, where this state is biorthonormal with respect to the set of left states. This stands in contrast to earlier implementations based on normalized states and a gradient formula for the derivative coupling. As an illustration of the implementation, we determine a minimum energy conical intersection between the nπ* and ππ* states in the nucleobase thymine.
description: 8 pages, 4 figures
On parabolicity and area growth of minimal surfaces
Creators: name: Neel, Robert W.
Publisher: name: arXiv
Year: 2010
Subjects: subject: Differential Geometry (math.DG)
subject: Probability (math.PR)
subject: FOS: Mathematics
subject: 53A10 (Primary) 58J65 60H30 (Secondary)

description: We establish parabolicity and quadratic area growth for minimal surfaces-with-boundary contained in regions of R^3 which are within a sub-logarithmic factor of the exterior of a cone. Unlike previous work showing that these two properties hold for minimal surfaces-with-boundary contained between two catenoids, we do not make use of universal superharmonic functions. Instead, we use stochastic methods, which have the additional feature of giving a type of parabolicity in a more general context than Brownian motion on a minimal surface.
description: 14 pages, sections 3 and 4 generalized, reference added, typos corrected
Causality, Measurement, and Elementary Interactions
Creators: name: Gillis, Edward J.
Publisher: name: arXiv
Year: 2010
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Signal causality, the prohibition of superluminal information transmission, is the fundamental property shared by quantum measurement theory and relativity, and it is the key to understanding the connection between nonlocal measurement effects and elementary interactions. To prevent those effects from transmitting information between the generating and observing process, they must be induced by the kinds of entangling interactions that constitute measurements, as implied in the Projection Postulate. They must also be nondeterministic as reflected in the Born Probability Rule. The nondeterminism of entanglement-generating processes explains why the relevant types of information cannot be instantiated in elementary systems, and why the sequencing of nonlocal effects is, in principle, unobservable. This perspective suggests a simple hypothesis about nonlocal transfers of amplitude during entangling interactions, which yields straightforward experimental consequences.
description: 34 pages, Final version, To be published in Foundations of Physics. The final publication is available at www.springerlink.com. http://www.springerlink.com/content/x1w8403t47040321/
Additional file 1 of A monocentric phase I study of vemurafenib plus cobimetinib plus PEG-interferon (VEMUPLINT) in advanced melanoma patients harboring the V600BRAF mutation
Creators: name: Simeone, Ester
name: Scognamiglio, Giosuè
name: Mariaelena Capone
name: Giannarelli, Diana
name: Grimaldi, Antonio M.
name: Mallardo, Domenico
name: Madonna, Gabriele
name: Curvietto, Marcello
name: Esposito, Assunta
name: Sandomenico, Fabio
name: Sabbatino, Francesco
name: Bayless, Nicholas L.
name: Warren, Sarah
name: SuFey Ong
name: Botti, Gerardo
name: Flaherty, Keith T.
name: Soldano Ferrone
name: Ascierto, Paolo A.
Publisher: name: figshare
Year: 2021
Subjects: subject: Medicine
subject: Genetics
subject: FOS: Biological sciences
subject: Pharmacology
subject: Immunology
subject: FOS: Clinical medicine
subject: Developmental Biology
subject: Cancer
subject: 110309 Infectious Diseases
subject: FOS: Health sciences
subject: 60506 Virology

description: Additional file 1: Table S1. HLA-A and HLA-B,C expression on melanoma cells in pre- and post-treatment biopsies. Abbreviation:% = percentage; Int = Intensity; Loc= localization.
The mixed-state entanglement in holographic p-wave superconductor model
Creators: name: Yang, Zhe
name: Cheng, Fang-Jing
name: Niu, Chao
name: Zhang, Cheng-Yong
name: Liu, Peng
Publisher: name: arXiv
Year: 2023
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: In this paper, we investigate the mixed-state entanglement in a model of p-wave superconductivity phase transition using holographic methods. We calculate several entanglement measures, including holographic entanglement entropy (HEE), mutual information (MI), and entanglement wedge cross-section (EWCS). Our results show that these measures display critical behavior at the phase transition points, with the EWCS exhibiting opposite temperature behavior compared to the HEE. Additionally, we find that the critical exponents of all entanglement measures are twice those of the condensate. Moreover, we find that the EWCS is a more sensitive indicator of the critical behavior of phase transitions than the HEE. Furthermore, we uncover a universal inequality in the growth rates of EWCS and MI near critical points in thermal phase transitions, such as p-wave and s-wave superconductivity, suggesting that MI captures more information than EWCS when a phase transition first occurs.
description: 24 pages, 13 figures; several refs added and the text improved
Summing bulk quantum numbers with Monte Carlo in spin foam theories
Creators: name: Dona, Pietro
name: Frisoni, Pietropaolo
Publisher: name: arXiv
Year: 2023
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We introduce a strategy to compute EPRL spin foam amplitudes with many internal faces numerically. We work with sl2cfoam-next, the state-of-the-art framework to numerically evaluate spin foam transition amplitudes. We find that uniform sampling Monte Carlo is exceptionally effective in approximating the sum over internal quantum numbers of a spin foam amplitude, considerably reducing the computational resources necessary. We apply it to compute large volume divergences of the theory and find surprising numerical evidence that the EPRL vertex renormalization amplitude is instead finite.
description: Version 2 matching published version, 25 pages and 21 figures
AstroPix: CMOS pixels in space
Creators: name: Steinhebel, Amanda L.
name: Caputo, Regina
name: Fleischhack, Henrike
name: Striebig, Nicolas
name: Jadhav, Manoj
name: Suda, Yusuke
name: Luz, Ricardo
name: Violette, Daniel
name: Kierans, Carolyn
name: Tajima, Hiroyasu
name: Fukazawa, Yasushi
name: Leys, Richard
name: Peric, Ivan
name: Metcalfe, Jessica
name: Negro, Michela
name: Perkins, Jeremy S.
Publisher: name: arXiv
Year: 2023
Subjects: subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: FOS: Physical sciences

description: Space-based gamma-ray telescopes such as the Fermi Large Area Telescope have used single sided silicon strip detectors to measure the position of charged particles produced by incident gamma rays with high resolution. At energies in the Compton regime and below, two dimensional position information within a single detector is required. Double sided silicon strip detectors are one option; however, this technology is difficult to fabricate and large arrays are susceptible to noise. This work outlines the development and implementation of monolithic CMOS active pixel silicon sensors, AstroPix, for use in future gamma-ray telescopes. Based upon detectors designed using the HVCMOS process at the Karlsruhe Institute of Technology, AstroPix has the potential to maintain the high energy and angular resolution required of a medium-energy gamma-ray telescope while reducing noise with the dual detection-and-readout capabilities of a CMOS chip. The status of AstroPix development and testing as well as outlook for application in future telescopes is presented.
description: Proceedings for PIXEL2022; Dec. 12-16 2022; Santa Fe, NM, USA
Pelletization strategies to reduce costs of wildfire mitigation
Creators: name: Jacobson, Ryan
Publisher: name: University of British Columbia
Year: 2022

description: The Prince George Timber Supply Area (TSA) produces 43,000 dry tonnes of easily accessible forest residues in the area around Prince George with an average of 279 m³ haˉ¹ or roughly 36 tonnes haˉ¹. These forest residues are excellent feedstock for high moisture mobile pelletization, using a self-loading mobile woodchipper to comminute and forward the material to the trailer mounted pelletization system. A high moisture pellet mill can accept feedstock with moisture contents up to 36% wet basis and reduce the needed drying energy 4-7% by extruding water through the compression and frictional heating during the pelletization process. Wood pellets produced in the mobile wood pellet system cost $402.71 tonneˉ¹. Feedstock costs were $64.89 tonneˉ¹, labor costs were $74.63 tonneˉ¹ and energy costs were $30.17 tonneˉ¹. Transportation costs in the mobile system are minimized by limiting the distance the chipped forest residues travel and transporting the much denser wood pellets the longest distances. Drying in the mobile system can also use forest residues to generate heat in place of natural gas or propane. In the traditional pellet mill assessed using the same parameters, wood pellets cost $181.98 tonneˉ¹ to produce. The mobile pellet mill employs 5 people to operate the system, a manager to oversee all the operations and an additional 5 to operate the self-loading mobile woodchipper used to collect feedstock. If the province provided a subsidy to cover the difference of $222.71 tonneˉ¹ between the market selling price of wood pellets and the production costs of the mobile system, the province would receive $1.62 in benefits for every dollar invested. The mobile system provided the province with $382.83 tonneˉ¹ in reduced fuel treatment costs, $69.76 tonneˉ¹ in avoided Employment Insurance payments, $12.56 tonneˉ¹ business taxes, and $6.98 tonneˉ¹ in income taxes while producing 89,232 tonnes of wood pellets from 22 mobile systems.
Gutzwiller-projected wave functions for the pseudogap state of underdoped high-temperature superconductors
Creators: name: Sensarma, Rajdeep
name: Galitski, Victor
Publisher: name: arXiv
Year: 2010
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: Recent experiments strongly suggest that a Fermi surface reconstruction and multiple Fermi pockets are important common features of the underdoped high-temperature cuprate superconductors. A related theoretical work [Phys. Rev. B 79, 134512 (2009)] has demonstrated that a number of hallmark phenomena observed in the underdoped cuprates appear naturally in the scenario of a paired electron pocket co-existing with unpaired hole pockets. We propose Gutzwiller-projected wave-functions to describe this two-fluid state as well as two competing states in its vicinity. It is argued that a pseudogap state constructed from these wave-functions may be selected by energetics at finite temperatures due to spin fluctuations.
description: 4 pages, 3 figures
Dirac Equation with Spin Symmetry for the Modified Pöschl-Teller Potential in $D$-dimensions
Creators: name: Agboola, D.
Publisher: name: arXiv
Year: 2010
Subjects: subject: Mathematical Physics (math-ph)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We present solutions of the Dirac equation with spin symmetry for vector and scalar modified Pöschl-Teller potential within framework of an approximation of the centrifugal term. The relativistic energy spectrum is obtained using the Nikiforov-Uvarov method and the two-component spinor wavefunctions are obtain are in terms of the Jacobi polynomials. It is found that there exist only positive-energy states for bound states under spin symmetry, and the energy levels increase with the dimension and the potential range parameter $α$.
description: 9 pages and 1table
Detecting entanglement of unknown states by violating the Clauser-Horne-Shimony-Holt inequality
Creators: name: Cortés-Vega, J.
name: Barra, J. F.
name: Pereira, L.
name: Delgado, A.
Publisher: name: arXiv
Year: 2023
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Entangled states play a fundamental role in Quantum Mechanics and are at the core of many contemporary applications, such as quantum communication and quantum computing. Therefore, determining whether a state is entangled or not is an important task. Here, we propose a method to detect the entanglement of unknown two-qubit quantum states. Our method is based on the violation of the Clauser-Horne-Shimony-Holt inequality. This maximizes the value of the inequality even when \lp{it} contains an unknown quantum state. The method iteratively generates local measurement settings that lead to increasing values of the inequality. We show by numerical simulations for pure and mixed states that our algorithm exceeds the classical limit of 2 after a few iterations.
Additional file 1 of A novel computational model for predicting potential LncRNA-disease associations based on both direct and indirect features of LncRNA-disease pairs
Creators: name: Yubin Xiao
name: Xiao, Zheng
name: Feng, Xiang
name: Zhiping Chen
name: Linai Kuang
name: Wang, Lei
Publisher: name: figshare
Year: 2020
Subjects: subject: Artificial Intelligence and Image Processing
subject: FOS: Computer and information sciences

description: Additional file 1 The ROC curves achieved by FVTLDA_ANN in framework of LOOCV.
Comparing the host galaxy ages of X-ray selected AGN in COSMOS: Obscured AGN are associated with older galaxies
Creators: name: Georgantopoulos, I.
name: Pouliasis, E.
name: Mountrichas, G.
name: Van der Wel, A.
name: Marchesi, S.
name: Lanzuisi, G.
Publisher: name: arXiv
Year: 2023
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: We explore the properties of the host galaxies of X-ray selected AGN in the COSMOS field using the Chandra Legacy sample and the LEGA-C survey VLT optical spectra. Our main goal is to compare the relative ages of the host galaxies of the obscured and unobscured AGN by means of the calcium break Dn(4000) and the Hdelta Balmer line. The host galaxy ages are examined in conjunction with other properties such as the galaxy stellar mass, and star-formation rate as well as the AGN Eddington ratio. Our sample consists of 50 unobscured or mildly obscured (logN_H (cm-2) < 23) and 23 heavily obscured AGN (log N_H (cm-2) >23) in the redshift range z=0.6-1. We take specific caution to create control samples in order to match the exact luminosity and redshift distributions for the obscured and unobscured AGN. The majority of unobscured AGN appear to live in young galaxies in contrast to the obscured AGN which appear to live in galaxies located between the young and old galaxy populations. This finding may be in contrast to those evolutionary AGN unification models which postulate that the AGN begin their life in a heavy obscuration phase. The host galaxies of the obscured AGN have significantly lower levels of specific star-formation. At the same time the obscured AGN have lower Eddington ratios indicating a link between the star-formation and the black hole accretion. We find that the distribution of the stellar masses of the host galaxies of obscured AGN is skewed towards higher stellar masses in agreement with previous findings. Our results on the relative age of obscured AGN are valid when we match our obscured and unobscured AGN samples according to the stellar mass of their host galaxies. All the above results become less conspicuous when a lower column density (log N_H(cm-2)= 21.5 or 22) is used to separate the obscured and unobscured AGN populations.
description: Accepted for publication in A&A
Characterization of coorbit spaces with phase-space covers
Creators: name: Romero, José Luis
Publisher: name: arXiv
Year: 2010
Subjects: subject: Functional Analysis (math.FA)
subject: FOS: Mathematics
subject: 42B35, 42C15, 42C40

description: We show that coorbit spaces can be characterized in terms of arbitrary phase-space covers, which are families of phase-space multipliers associated with partitions of unity. This generalizes previously known results for time-frequency analysis to include time-scale decompositions. As a by-product, we extend the existing results for time-frequency analysis to an irregular setting.
description: 31 pages. Revised version (title slightly changed). Typos fixed
Structure, Bose-Einstein condensation and superfluidity of two-dimensional confined dipolar assemblies
Creators: name: Jain, Piyush
name: Cinti, Fabio
name: Boninsegni, Massimo
Publisher: name: arXiv
Year: 2011
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Quantum Gases (cond-mat.quant-gas)
subject: FOS: Physical sciences

description: Low temperature properties of harmonically confined two-dimensional assemblies of dipolar bosons are systematically investigated by Monte Carlo simulations. Calculations carried out for different numbers of particles and strengths of the confining potential yield evidence of a quantum phase transition from a superfluid to a crystal-like phase, consistently with what is observed in the ho- mogeneous system. It is found that the crystal phase nucleates in the center of the trap, as the density increases. Bose-Einstein condensation vanishes at T = 0 upon entering the crystalline phase, concurrently with the disappearance of the superfluid response.
description: 10 pages, 9 figures
Large Eddy Simulations of Fully-Developed Turbulent Flows Over Additively Manufactured Rough Surfaces
Creators: name: Garg, Himani
name: Wang, Lei
name: Sahut, Guillaume
name: Fureby, Christer
Publisher: name: arXiv
Year: 2023
Subjects: subject: Fluid Dynamics (physics.flu-dyn)
subject: FOS: Physical sciences

description: In the last decade, progresses in additive manufacturing (AM) have paved the way for optimized heat exchangers, whose disruptive design will depend on predictive numerical simulations. Typical AM rough surfaces show limited resemblance to the artificially constructed rough surfaces that have been the basis of most prior fundamental research on turbulent flow over rough walls. Therefore, a high-fidelity LES database is built to develop and assess novel wall models for AM. This article investigates the flow in rough pipes built from the surfaces created using AM techniques at Siemens based on Nickel Alloy IN939 material. We developed a code to generate the desired rough pipes from scanned planar surfaces and performed high-fidelity LES of turbulent rough pipe flows at Re = 11,700 to reveal the influence of roughness on turbulence, mainly the average roughness height and the Effective Slope. The equivalent sand-grain roughnesses, ks, of the present AM rough surfaces are predicted using the Colebrook correlation. In the present study, the existence of a logarithmic layer is marked even for high values of ks. The mean flow, the velocity fluctuations, and the Reynolds stresses show turbulence's strong dependence on the roughness topography. Profiles of turbulence statistics are compared by introducing an effective wall-normal distance. The effective distance collapses the shear stresses and the velocity fluctuations outside the roughness sublayer; thus, Townsend's similarity of the streamwise mean velocity is marked for the present roughnesses. Furthermore, a mixed scaling is introduced to improve the collapse of turbulence statistics in the roughness sublayer.
Особенности налогообложения компании «Транснефть»
Creators: name: Каширина Марина Валентиновна
name: Бортник Ирина Вадимовна
Publisher: name: Московский экономический журнал
Year: 2019
Subjects: «Транснефть»
нефть
тариф
налог на прибыль организаций
налоговое администрирование.
«Transneft»
oil
tariff
profit tax
tax administration.

description: В статье рассматривается современное состояние нефтяной отрасли в Российской Федерации, история создания и дальнейшего развития компании «Транснефть», текущая работа компании. Также рассмотрены спорные вопросы применения тарифов и взаимодействия с нефтедобывающими компаниями, особенности налогообложения и налогового администрирования компании.
description: The article discusses the current state of the oil industry in the Russian Federation, the history and further development of Transneft and it`s the current work. Also item considers controversial tariffs` issues and work with oil companies, its taxation and tax administration of the company related to its work.
Additional file 2 of A novel computational model for predicting potential LncRNA-disease associations based on both direct and indirect features of LncRNA-disease pairs
Creators: name: Yubin Xiao
name: Xiao, Zheng
name: Feng, Xiang
name: Zhiping Chen
name: Linai Kuang
name: Wang, Lei
Publisher: name: figshare
Year: 2020
Subjects: subject: Artificial Intelligence and Image Processing
subject: FOS: Computer and information sciences

description: Additional file 2 The ROC curves achieved by FVTLDA_MLR in framework of 5-fold CV.
Multiple orthogonal polynomials of mixed type: Gauss-Borel factorization and the multi-component 2D Toda hierarchy
Creators: name: Álvarez-Fernández, Carlos
name: Prieto, Ulises Fidalgo
name: Mañas, Manuel
Publisher: name: arXiv
Year: 2010
Subjects: subject: Classical Analysis and ODEs (math.CA)
subject: Mathematical Physics (math-ph)
subject: Exactly Solvable and Integrable Systems (nlin.SI)
subject: FOS: Mathematics
subject: FOS: Physical sciences

description: Multiple orthogonality is considered in the realm of a Gauss--Borel factorization problem for a semi-infinite moment matrix. Perfect combinations of weights and a finite Borel measure are constructed in terms of M-Nikishin systems. These perfect combinations ensure that the problem of mixed multiple orthogonality has a unique solution, that can be obtained from the solution of a Gauss--Borel factorization problem for a semi-infinite matrix, which plays the role of a moment matrix. This leads to sequences of multiple orthogonal polynomials, their duals and second kind functions. It also gives the corresponding linear forms that are bi-orthogonal to the dual linear forms. Expressions for these objects in terms of determinants from the moment matrix are given, recursion relations are found, which imply a multi-diagonal Jacobi type matrix with snake shape, and results like the ABC theorem or the Christoffel--Darboux formula are re-derived in this context (using the factorization problem and the generalized Hankel symmetry of the moment matrix). The connection between this description of multiple orthogonality and the multi-component 2D Toda hierarchy, which can be also understood and studied through a Gauss--Borel factorization problem, is discussed. Deformations of the weights, natural for M-Nikishin systems, are considered and the correspondence with solutions to the integrable hierarchy, represented as a collection of Lax equations, is explored. Corresponding Lax and Zakharov--Shabat matrices as well as wave functions and their adjoints are determined. The construction of discrete flows is discussed in terms of Miwa transformations which involve Darboux transformations for the multiple orthogonality conditions. The bilinear equations are derived and the $τ$-function representation of the multiple orthogonality is given.
description: 53 pages. In this version minor revisions regarding the Christoffel-Darboux operators are performed
Encounter-based model of a run-and-tumble particle II: absorption at sticky boundaries
Creators: name: Bressloff, Paul C.
Publisher: name: arXiv
Year: 2023
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Quantitative Methods (q-bio.QM)
subject: FOS: Physical sciences
subject: FOS: Biological sciences

description: In this paper we develop an encounter-based model of a run-and-tumble particle (RTP) confined to a finite interval $[0,L]$ with partially absorbing, sticky boundaries at both ends. We assume that the particle switches between two constant velocity states $\pm v$ at a rate $α$. Whenever the particle hits a boundary, it becomes stuck by pushing on the boundary until either a tumble event reverses the swimming direction or it is permanently absorbed. We formulate the absorption process by identifying the first passage time (FPT) for absorption with the event that the time $A(t)$ spent attached to either wall up to time $t$ (the occupation time) crosses some random threshold $\hat{A}$. Taking $Ψ({a})\equiv\mathbb{P}[\hat{A}\gt{a}]$ to be an exponential distribution, $Ψ[{a}]=e^{-κ_0a}$, we show that the joint probability density for particle position $X(t)$ and velocity state $σ(t)=\pm $ satisfies a well-defined boundary value problem (BVP) with $κ_0$ representing a constant absorption rate. The solution of this BVP determines the so-called occupation time propagator, which is the joint probability density for the triplet $(X(t),A(t),σ(t))$. The propagator is then used to incorporate more general models of absorption based on non-exponential (non-Markovian) distributions $Ψ(a)$. We illustrate the theory by calculating the mean FPT (MFPT) and splitting probabilities for absorption. We also show how our previous results for partially absorbing, non-sticky boundaries can be recovered in an appropriate limit. Absorption now depends on the number of collisions $\ell(t)$ of the RTP with the boundary. Finally, we extend the theory by taking absorption to depend on the individual occupation times at the two ends.
description: 27 pages, 7 figures
Faithful guiding-center orbits in an axisymmetric magnetic field
Creators: name: Brizard, Alain J.
name: Hodgeman, Brook C.
Publisher: name: arXiv
Year: 2023
Subjects: subject: Plasma Physics (physics.plasm-ph)
subject: FOS: Physical sciences

description: The problem of the charged-particle motion in an axisymmetric magnetic geometry is used to assess the validity of higher-order Hamiltonian guiding-center theory, which includes higher-order corrections associated with gyrogauge invariance as well as guiding-center polarization induced by magnetic-field non-uniformity. Two axisymmetric magnetic geometries are considered: a magnetic mirror geometry and a simple tokamak geometry. When a magnetically-confined charged-particle orbit is regular (i.e., its guiding-center magnetic moment is adiabatically invariant), the guiding-center approximation, which conserves both energy and azimuthal canonical angular momentum, is shown to be faithful to the particle orbit when higher-order corrections are taken into account.
description: 13 pages, 10 figures
Localized D-dimensional global k-defects
Creators: name: Avelino, P. P.
name: Bazeia, D.
name: Menezes, R.
name: Ramos, J. G. G. S.
Publisher: name: arXiv
Year: 2010
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We explicitly demonstrate the existence of static global defect solutions of arbitrary dimensionality whose energy does not diverge at spatial infinity, by considering maximally symmetric solutions described by an action with non-standard kinetic terms in a D+1 dimensional Minkowski space-time. We analytically determine the defect profile both at small and large distances from the defect centre. We verify the stability of such solutions and discuss possible implications of our findings, in particular for dark matter and charge fractionalization in graphene.
description: 6 pages, published version
Computing chemical potentials of adsorbed or confined fluids
Creators: name: Schmid, Rochus
name: Cheng, Bingqing
Publisher: name: arXiv
Year: 2023
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Materials Science (cond-mat.mtrl-sci)
subject: Chemical Physics (physics.chem-ph)
subject: FOS: Physical sciences

description: The chemical potential of adsorbed or confined fluids provides insight into their unique thermodynamic properties and determines adsorption isotherms. However, it is often difficult to compute this quantity from atomistic simulations using existing statistical mechanical methods. We introduce a computational framework that utilizes static structure factors, thermodynamic integration and free energy perturbation, for calculating the absolute chemical potential of fluids. For demonstration, we apply the method to compute the adsorption isotherms of carbon dioxide in a metal-organic framework (MOF) and water in carbon nanotubes.
Weak-triplet, color-octet scalars and the CDF dijet excess
Creators: name: Dobrescu, Bogdan A.
name: Krnjaic, Gordan Z.
Publisher: name: arXiv
Year: 2011
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: We extend the standard model to include a weak-triplet and color-octet scalar. This `octo-triplet' field consists of three particles, two charged and one neutral, whose masses and renormalizable interactions depend only on two new parameters. The charged octo-triplet decay into a W boson and a gluon is suppressed by a loop factor and an accidental cancellation. Thus, the main decays of the charged octo-triplet may occur through higher-dimensional operators, mediated by a heavy vectorlike fermion, into quark pairs. For an octo-triplet mass below the t\bar{b} threshold, the decay into Wb\bar{b} or Wb\bar{s} through an off-shell top quark has a width comparable to that into c\bar{s} or c\bar{b}. Pair production with one octo-triplet decaying into two jets and the other decaying into a W and two soft b jets may explain the dijet-plus-W excess reported by the CDF Collaboration. Using a few kinematic distributions, we compare two mechanisms of octo-triplet pair production: through an s-channel coloron and through the coupling to gluons. The higher-dimensional operators that allow dijet decays also lead to CP violation in B_s - \bar B_s mixing.
description: 18 pages. New CDF kinematic distributions using 7.3 fb^{-1} compared to both resonant and gluon-induced pair production of octets. Corrections in Section 3.1. Comment on the D0 Wjj result included in Section 3.3. Implications for LHC expanded in Section 3.5
Additional file 3 of A novel computational model for predicting potential LncRNA-disease associations based on both direct and indirect features of LncRNA-disease pairs
Creators: name: Yubin Xiao
name: Xiao, Zheng
name: Feng, Xiang
name: Zhiping Chen
name: Linai Kuang
name: Wang, Lei
Publisher: name: figshare
Year: 2020
Subjects: subject: Artificial Intelligence and Image Processing
subject: FOS: Computer and information sciences

description: Additional file 3 The ROC curves achieved by FVTLDA_MLR in framework of 10-fold CV.
Transcranial direct current stimulation (tDCS) paired with massed practice training to promote adaptive plasticity and motor recovery in chronic incomplete tetraplegia: A pilot study
Creators: name: Potter-Baker, Kelsey A.
name: Janini, Daniel P.
name: Lin, Yin-Liang
name: Sankarasubramanian, Vishwanath
name: Cunningham, David A.
name: Varnerin, Nicole M.
name: Chabra, Patrick
name: Kilgore, Kevin L.
name: Richmond, Mary Ann
name: Frost, Frederick S.
name: Plow, Ela B.
Publisher: name: Taylor & Francis
Year: 2022
Subjects: subject: Medicine
subject: Neuroscience
subject: Physiology
subject: FOS: Biological sciences
subject: 69999 Biological Sciences not elsewhere classified
subject: 111714 Mental Health
subject: FOS: Health sciences
subject: Computational Biology

description: Objective: Our goal was to determine if pairing transcranial direct current stimulation (tDCS) with rehabilitation for two weeks could augment adaptive plasticity offered by these residual pathways to elicit longer-lasting improvements in motor function in incomplete spinal cord injury (iSCI). Design: Longitudinal, randomized, controlled, double-blinded cohort study. Setting: Cleveland Clinic Foundation, Cleveland, Ohio, USA. Participants: Eight male subjects with chronic incomplete motor tetraplegia. Interventions: Massed practice (MP) training with or without tDCS for 2 hrs, 5 times a week. Outcome Measures: We assessed neurophysiologic and functional outcomes before, after and three months following intervention. Neurophysiologic measures were collected with transcranial magnetic stimulation (TMS). TMS measures included excitability, representational volume, area and distribution of a weaker and stronger muscle motor map. Functional assessments included a manual muscle test (MMT), upper extremity motor score (UEMS), action research arm test (ARAT) and nine hole peg test (NHPT). Results: We observed that subjects receiving training paired with tDCS had more increased strength of weak proximal (15% vs 10%), wrist (22% vs 10%) and hand (39% vs. 16%) muscles immediately and three months after intervention compared to the sham group. Our observed changes in muscle strength were related to decreases in strong muscle map volume (r=0.851), reduced weak muscle excitability (r=0.808), a more focused weak muscle motor map (r=0.675) and movement of weak muscle motor map (r=0.935). Conclusion: Overall, our results encourage the establishment of larger clinical trials to confirm the potential benefit of pairing tDCS with training to improve the effectiveness of rehabilitation interventions for individuals with SCI. Trial Registration: NCT01539109
Additional file 4 of A novel computational model for predicting potential LncRNA-disease associations based on both direct and indirect features of LncRNA-disease pairs
Creators: name: Yubin Xiao
name: Xiao, Zheng
name: Feng, Xiang
name: Zhiping Chen
name: Linai Kuang
name: Wang, Lei
Publisher: name: figshare
Year: 2020
Subjects: subject: Artificial Intelligence and Image Processing
subject: FOS: Computer and information sciences

description: Additional file 4 The ROC curves achieved by FVTLDA_ANN in framework of 5-fold CV.
High Metallicity and Non-equilibrium Chemistry in the Dayside Atmosphere of hot-Neptune GJ 436b
Creators: name: Madhusudhan, N.
name: Seager, S.
Publisher: name: arXiv
Year: 2010
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: FOS: Physical sciences

description: We present a detailed analysis of the dayside atmosphere of the hot-Neptune GJ~436b, based on recent Spitzer observations. We report statistical constraints on the thermal and chemical properties of the planetary atmosphere, study correlations between the various molecular species, and discuss scenarios of equilibrium and non-equilibrium chemistry in GJ 436b. We model the atmosphere with a one-dimensional line-by-line radiative transfer code with parameterized molecular abundances and temperature structure. We explore the model parameter space with 10^6 models, using a Markov chain Monte Carlo scheme. Our results encompass previous findings, indicating a paucity of methane, an overabundance of CO and CO2, and a slight underabundance of H2O, as compared to equilibrium chemistry with solar metallicity. The concentrations of the species are highly correlated. Our best-fit, and most plausible, constraints require a CH4 mixing ratio of 1.0E-7 to 1.0E-6, with CO >= 1.0E-3, CO2 ~ 1.0E-6 to 1.0E-4, and H2O <= 1.0E-4; higher CH4 would require much higher CO and CO2. Based on calculations of equilibrium and non-equilibrium chemistry, we find that the observed abundances can potentially be explained by a combination of high metallicity (~ 10 x solar) and vertical mixing with Kzz ~ 10^6 - 10^7 cm^2/s. The inferred metallicity is enhanced over that of the host star which is known to be consistent with solar metallicity. Our constraints rule out a dayside thermal inversion in GJ 436b. We emphasize that the constraints reported in this work depend crucially on the observations in the two Spitzer channels at 3.6 micron and 4.5 micron. Future observations with warm Spitzer and with the James Webb Space Telescope will be extremely important to improve upon the present constraints on the abundances of carbon species in the dayside atmosphere of GJ 436b.
description: Accepted version, 15 pages in emulateapj, 7 figures. Published in ApJ, 2011, 729, 41
Hyperspectral imaging for high resolution mapping of soil profile organic carbon distribution in an Austrian Alpine landscape
Creators: name: YASER OSTOVARI
name: Köppendörfer, Baptist
name: Guigue, Julien
name: Van Groenigen, Jan Willem
name: Creamer, Rachel
name: Guggenberger, Thomas
name: Grassauer, Florian
name: Hobley, Eleanor
name: Ferron, Laura
name: Martens, Henk
name: Kögel-Knabner, Ingrid
name: Vidal, Alix
Publisher: name: Zenodo
Year: 2020
Subjects: Vis-NIR imaging spectroscopy, Alpine grassland, Digital elevation model, Subsoils

description: Studies on soil organic carbon (SOC) stocks mostly focus on topsoils (< 30 cm). However, 30 to 63% of the SOC are stored in the subsoils (30 to 100 cm), and the factors controlling SOC storage in subsoils may be substantially different than in topsoils. The low mean SOC content in subsoils makes its quantification and characterization challenging. Thus, new approaches are required to depict the SOC stocks distribution in full soil profile. Hyperspectral imaging of soil core samples can provide high spatial resolution of the vertical distribution of SOC in a soil profile. The main objective of the ongoing study, within the Horizon 2020 European Project Circular Agronomics, is to apply laboratory hyperspectral imaging with a variety of machine learning approaches for the mapping of OC distribution in undisturbed soil cores. Soil cores were collected down to a depth of one meter in grasslands of 15 organic farms located in the Lungau Valley, in Austria. Some samples were divided into five depths in the field for classical bulk soil measurements (total carbon and nitrogen, texture, pH, EC and bulk density) on disturbed samples. Undisturbed soil cores were sliced vertically for laboratory hyperspectral imaging in the range of Vis-NIR (400-1000 nm). We were able to reveal the hotspots of OC and map the OC distribution in soil profile by applying a variety of machine learning approaches (i.e. partial least square and random forest regression) as a function of spectral responses. A digital elevation model was further exploited to investigate the effects of topographical factors such as elevation, aspect and slope on SOC profile distribution. Landsat 8 data were also used to depict the spatial variability of land insensitive cover/vegetation in study area.
Analysis of two-player quantum games in an EPR setting using geometric algebra
Creators: name: Chappell, James M.
name: Iqbal, Azhar
name: Abbott, Derek
Publisher: name: arXiv
Year: 2010
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: The framework for playing quantum games in an Einstein-Podolsky-Rosen (EPR) type setting is investigated using the mathematical formalism of Clifford geometric algebra (GA). In this setting, the players' strategy sets remain identical to the ones in the classical mixed-strategy version of the game, which is then obtained as proper subset of the corresponding quantum game. As examples, using GA we analyze the games of Prisoners' Dilemma and Stag Hunt when played in the EPR type setting.
description: 20 pages, no figure, revised
Dileptons and Photons at RHIC
Creators: name: Zahed, Ismail
Publisher: name: arXiv
Year: 2010
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: Nuclear Experiment (nucl-ex)
subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: Electromagnetic emission in the form of photons or dileptons provide important information on the onset and evolution of a heavy ion collision at ultrarelativistic energies. We briefly summarize the theoretical assessments of the thermalized electromagnetic emissivities from a hot partonic and hadronic medium, and compare them to current experiments at collider energies.
description: 7 pages; 4 figures