cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Loop corrections for Kaluza-Klein AdS amplitudes
Creators: name: Aprile, F.
name: Drummond, J. M.
name: Heslop, P.
name: Paul, H.
Publisher: name: arXiv
Year: 2017
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: Recently we conjectured the four-point amplitude of graviton multiplets in ${\rm AdS}_5 \times {\rm S}^5$ at one loop by exploiting the operator product expansion of $\mathcal{N}=4$ super Yang-Mills theory. Here we give the first extension of those results to include Kaluza-Klein modes, obtaining the amplitude for two graviton multiplets and two states of the first KK mode. Our method again relies on resolving the large N degeneracy among a family of long double-trace operators, for which we obtain explicit formulas for the leading anomalous dimensions. Having constructed the one-loop amplitude we are able to obtain a formula for the one-loop corrections to the anomalous dimensions of all twist five double-trace operators.
description: 37 pages. One ancillary file containing data on the correlators
Decision Models for Affordable Housing and Sustainable Community Development
Creators: name: Johnson, Michael P.
Publisher: name: Carnegie Mellon University
Year: 2006
Subjects: subject: Information Systems
subject: FOS: Computer and information sciences
subject: 160510 Public Policy
subject: FOS: Political science

description: Researchers in urban housing and community development face significant challenges in evaluating the success of efforts to improve urban neighborhoods, and identifying underlying theories that might predict the success of future initiatives. Practitioners in this field confront political considerations, restrictive administrative guidelines and limited funding. In the face of these challenges, prescriptive decision models have the potential to improve policy responses to challenges such as affordable housing, race and class segregation, ineffective and/or inequitable economic development, and urban sprawl. This paper first reviews previous research in these areas across multiple disciplines and identify important limitations and modeling opportunities. It then describes recent work on tools and methods to assist policymakers to design effective and sustainable housing and community development strategies. These strategies are based on explicit values of maximization of social welfare and social equity and use best-available evidence regarding impacts of housing and community development policies on program participants and non-participants. The discussion is animated by a case study of a hypothetical affordable housing policy initiative for a diverse metropolitan area that we analyze from three perspectives. The first is a long-term and national perspective in which stylized policy models provide insight into large-scale implementation of this program. The second perspective is the medium- term and regional, in which detailed planning models and decision support systems provide specific guidance to housing providers. The third perspective is the short-term and local, in which decision support systems assist individuals’ choice of specific alternatives as defined by housing initiatives. These complementary modeling perspectives are shown to provide technical and policy insights that differ significantly from, and improve on, those associated with conventional methods.
Reconstructing the evolution of double helium white dwarfs: envelope loss without spiral-in
Creators: name: Nelemans, Gijs
name: Verbunt, Frank
name: Yungelson, Lev R.
name: Zwart, Simon F. Portegies
Publisher: name: arXiv
Year: 2000
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: The unique core-mass - radius relation for giants with degenerate helium cores enables us to reconstruct the evolution of three observed double helium white dwarfs with known masses of both components. The last mass transfer phase in their evolution must have been a spiral-in. In the formalism proposed by Webbink (1984), we can constrain the efficiency of the deposition of orbital energy into the envelope to be $1 \la α\la 6$, for an envelope structure parameter $λ=0.5$. We find that the two standard mass transfer types (stable mass transfer and spiral-in) are both unable to explain the first phase of mass transfer for these three binaries. We use a parametric approach to describe mass transfer in low-mass binaries, where both stars are of comparable mass and find that the orbital characteristics of the observed double helium white dwarfs can be well reproduced if the envelope of the primary is lost with ~1.5 times the specific angular momentum of the initial binary. In this case no substantial spiral-in occurs.
description: 8 pages, accepted for publication in A&A
Optimized annealing of traveling salesman problem from the nth-nearest-neighbor distribution
Creators: name: Chen, Yong
name: Zhang, Pan
Publisher: name: arXiv
Year: 2006
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: FOS: Physical sciences

description: We report a new statistical general property in traveling salesman problem, that the $n$th-nearest-neighbor distribution of optimal tours verifies with very high accuracy an exponential decay as a function of the order of neighbor $n$. With defining the energy function as the deviation $λ$ from this exponential decay, which is different to the tour length $d$ in normal annealing processes, we propose a distinct highly optimized annealing scheme which is performed in $λ$-space and $d$-space by turns. The simulation results of some standard traveling salesman problems in TSPLIB95 are presented. It is shown that our annealing recipe is superior to the canonical simulated annealing.
description: 11 pages, 3 figures, preprint
Supplementary figure from Misophonia reactions in the general population are correlated with strong emotional reactions to other everyday sensory-emotional experiences
Creators: name: Mednicoff, Solena D.
name: Barashy, Sivan
name: Vollweiler, David J.
name: Benning, Stephen D.
name: Snyder, Joel S.
name: Hannon, Erin E.
Publisher: name: The Royal Society
Year: 2024
Subjects: classificationCode: 310901
subject: Animal behaviour
classificationCode: 520499
subject: Cognitive and computational psychology not elsewhere classified

description: Misophonic experiences are common in the general population, and they may shed light on everyday emotional reactions to multi-modal stimuli. We performed an online study of a non-clinical sample to understand the extent to which adults who have misophonic reactions are generally reactive to a range of audio-visual emotion-inducing stimuli. We also hypothesized that musicality might be predictive of one's emotional reactions to these stimuli because music is an activity that involves strong connections between sensory processing and meaningful emotional experiences. Participants completed self-report scales of misophonia and musicality. They also watched videos meant to induce misophonia, autonomous sensory meridian response (ASMR) and musical chills, and were asked to click a button whenever they had any emotional reaction to the video. They also rated the emotional valence and arousal of each video. Reactions to misophonia videos were predicted by reactions to ASMR and chills videos, which could indicate that the frequency with which individuals experience emotional responses varies similarly across both negative and positive emotional contexts. Musicality scores were not correlated with measures of misophonia. These findings could reflect a general phenotype of stronger emotional reactivity to meaningful sensory inputs.This article is part of the theme issue ‘Sensing and feeling: an integrative approach to sensory processing and emotional experience’.
Multisymplectic analysis of the short pulse equation
Creators: name: Pietrzyk, Monika
name: Kanattšikow, Igor
Publisher: name: Weierstrass Institute
Year: 2007
Subjects: subject: Multisymplectic formalism
subject: multisymplectic integrator
subject: Short Pulse Equation
subject: ultrashort pulses
subject: nonlinear optics
subject: 37K10
subject: 78A60
subject: 35Q60
subject: 35Q51
subject: 02.30.lk
subject: 42.65.-k
subject: 42.81.Gs

description: The multisymplectic analysis of the Short Pulse Equation known in nonlinear optics is used in order to construct a geometric multisymplectic integrator of it. A brief comparison of its effectiveness relative to the pseudo-spectral integration scheme is presented.
Additional file 9 of CCHCR1-astrin interaction promotes centriole duplication through recruitment of CEP72
Creators: name: Ying, Zhenguang
name: Wang, Kaifang
name: Wu, Junfeng
name: Wang, Mingyu
name: Yang, Jing
name: Wang, Xia
name: Zhou, Guowei
name: Chen, Haibin
name: Xu, Hongwu
name: Sze, Stephen Cho Wing
name: Gao, Feng
name: Li, Chunman
name: Sha, Ou
Publisher: name: figshare
Year: 2022
Subjects: subject: Genetics
subject: FOS: Biological sciences

description: Additional file 9. Verification reports of astrin-KO cell line.
Spectroscopic factors for bound s-wave states derived from neutron scattering lengths
Creators: name: Mohr, P.
name: Herndl, H.
name: Oberhummer, H.
Publisher: name: arXiv
Year: 1996
Subjects: subject: Nuclear Theory (nucl-th)
subject: Nuclear Experiment (nucl-ex)
subject: FOS: Physical sciences

description: A simple and model-independent method is described to derive neutron single-particle spectroscopic factors of bound s-wave states in $^{A+1}Z = ^{A}Z \otimes n$ nuclei from neutron scattering lengths. Spectroscopic factors for the nuclei ^{13}C, ^{14}C, ^{16}N, ^{17}O, ^{19}O, ^{23}Ne, ^{37}Ar, and ^{41}Ar are compared to results derived from transfer experiments using the well-known DWBA analysis and to shell model calculations. The scattering length of ^{14}C is calculated from the ^{15}C_{g.s.} spectroscopic factor.
description: 9 pages (uses revtex), no figures, accepted for publication in PRC, uuencoded tex-files and postscript-files available at ftp://is1.kph.tuwien.ac.at/pub/ohu/Thermal.uu
Magnetar-like X-ray bursts suppress pulsar radio emission
Creators: name: Archibald, R. F.
name: Burgay, M.
name: Lyutikov, M.
name: Kaspi, V. M.
name: Esposito, P.
name: Israel, G.
name: Kerr, M.
name: Possenti, A.
name: Rea, N.
name: Sarkissian, J.
name: Scholz, P.
name: Tendulkar, S. P.
Publisher: name: arXiv
Year: 2017
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: Rotation-powered pulsars and magnetars are two different observational manifestations of neutron stars: rotation powered pulsars are rapidly spinning objects that are mostly observed as pulsating radio sources, while magnetars, neutron stars with the highest known magnetic fields, often emit short-duration X-ray bursts. Here we report simultaneous observations of the high-magnetic-field radio pulsar PSR J1119-6127 at X-ray, with XMM-Newton & NuSTAR, and at radio energies with Parkes radio telescope, during a period of magnetar-like bursts. The rotationally powered radio emission shuts off coincident with the occurrence of multiple X-ray bursts, and recovers on a time scale of ~70 seconds. These observations of related radio and X-ray phenomena further solidify the connection between radio pulsars and magnetars, and suggest that the pair plasma produced in bursts can disrupt the acceleration mechanism of radio emitting particles.
description: 8 pages, 4 figures. Submitted to ApJL
WFPC2 Stellar Photometry with HSTphot
Creators: name: Dolphin, Andrew E.
Publisher: name: arXiv
Year: 2000
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: HSTphot, a photometry package designed to handle the undersampled PSFs found in WFPC2 images, is introduced and described, as well as some of the considerations that have to be made in order to obtain accurate PSF-fitting stellar photometry with WFPC2 data. Tests of HSTphot's internal reliability are made using multiple observations of the same field, and tests of external reliability are made by comparing with DoPHOT reductions of the same data.
description: 33 pages, 7 figures Accepted for publication in October 2000 PASP
R^4, purified
Creators: name: Policastro, Giuseppe
name: Tsimpis, Dimitrios
Publisher: name: arXiv
Year: 2006
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We derive, using the pure-spinor formalism, the complete -- including the fermions -- four-point effective action of both type II superstrings to all orders in $α'$, at tree level in string loops. We find that, in the quartic-field approximation, the supergravity Lagrangian can be thought of as the tensor product, in a suitable sense, of two copies of the superYang-Mills Lagrangian in ten dimensions. The NS-NS three-form enters the supergravity Lagrangian through a modified connection with torsion. As a byproduct, we derive the complete, i.e. to all orders in the $θ$-expansion, closed-string vertex operator in a flat target-space background.
description: 32 pages. v2: minor corrections in the text; references added, including references to early pioneering work on pure spinors
title: 02_1553
Creators: name: Wesley Baldwin, John
name: Baldwin, John W.
Publisher: name: NAKALA - https://nakala.fr (Huma-Num - CNRS)
publisherIdentifier: https://ror.org/04ces3204
publisherIdentifierScheme: ROR
Year: 2018
Subjects: subject: LaMOP
subject: Laboratoire de Médiévistique Occidentale de Paris

description: L'ensemble de ces notes ont été crée par John Baldwin lors d'une de ses premières périodes de résidence à Paris. Ces documents comprennent tous les magistri qu’il avait pu rencontrer dans ses sources. Aux XIIème et XIIIème siècles, les universités n'existant pas encore, le titre de magister s'il évoque certainement une compétence n'est pas rattaché de façon systématique au passage par les écoles. De surcroît, les magistris sont le plus souvent désignés par leur seul prénom. La lecture de ces données est donc difficile et suppose un long travail pour tenter d'identifier un individu auquel on pourrait rattacher plusieurs mentions. John Baldwin avait donc renoncé à utiliser ces données pour donner un prolongement à sa magnifique étude sur les gradués d'université et leur emploi par les Capétiens et les Plantagenêts. Néanmoins, il a conservé ces données et elles sont potentiellement très utile dans le cadre de Studium, comme le sont toutes les mentions dans les volumes des Fasti Ecclesiae Gallicanae de chanoines portant ce titre de magister sans autres précisions. L'ampleur des dépouillements rend ces données très utiles et nous devons une grande reconnaissance à John Baldwin pour avoir pris la peine de faire photocopier ses fiches et de nous les avoir transmises amicalement.
Les données ainsi que les images des fiches sont accessibles sur le site Internet à l'adresse suivante : http://studium-baldwin.lamop.fr/.
Les transcriptions des fiches ont été effectuées par des étudiants de Paris 1 Panthéon - Sorbonne mais elles n'ont pas été corrigées par la suite.
description: Relation: https://lamop.hypotheses.org/
A model equation for ultrashort optical pulses
Creators: name: Amiranashvili, Shalva
name: Vladimirov, Andrei G.
name: Bandelow, Uwe
Publisher: name: Weierstrass Institute
Year: 2008
Subjects: subject: ultrashort pulses
subject: few-cycle pulses
subject: 78A60
subject: 35Q60
subject: 42.65.Re
subject: 42.81.Dp
subject: 42.65.Tg
subject: 05.45.Yv

description: The nonlinear Schrödinger equation based on the Taylor approximation of the material dispersion can become invalid for ultrashort and few-cycle optical pulses. Instead, we use a rational fit to the dispersion function such that the resonances are naturally accounted for. This approach allows us to derive a simple non-envelope model for short pulses propagating in one spatial dimension. This model is further investigated numerically and analytically.
Spectral and spatial shaping of Smith Purcell Radiation
Creators: name: Remez, Roei
name: Shapira, Niv
name: Roques-Carmes, Charles
name: Tirole, Romain
name: Yang, Yi
name: Lereah, Yossi
name: Soljačić, Marin
name: Kaminer, Ido
name: Arie, Ady
Publisher: name: arXiv
Year: 2017
Subjects: subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: The Smith Purcell effect, observed when an electron beam passes in the vicinity of a periodic structure, is a promising platform for the generation of electromagnetic radiation in previously-unreachable spectral ranges. However, most of the studies of this radiation were performed on simple periodic gratings, whose radiation spectrum exhibits a single peak and its higher harmonics predicted by a well-established dispersion relation. Here, we propose a method to shape the spatial and spectral far-field distribution of the radiation using complex periodic and aperiodic gratings. We show, theoretically and experimentally, that engineering multiple peak spectra with controlled widths located at desired wavelengths is achievable using Smith-Purcell radiation. Our method opens the way to free-electron driven sources with tailored angular and spectral response, and gives rise to focusing functionality for spectral ranges where lenses are unavailable or inefficient.
Cycles of Violence: A Dynamic Control Analysis (or Model?)
Creators: name: Caulkins, Jonathan P.
name: Feichtinger, Gustav
name: Tragler, Gernot
name: Veliov, Vladimir M
Publisher: name: Carnegie Mellon University
Year: 2002
Subjects: subject: Information Systems
subject: FOS: Computer and information sciences
subject: 160510 Public Policy
subject: FOS: Political science

description: We introduce and analyze a simple model of cycle of violence in which oscillations are generated when surges in lethal violence shrink the pool of active violent offenders. Models with such endogenously induced variation may help explain why historically observed trends in violence are generally not well correlated with exogenous forcing functions, such as changes in the state of the economy. The analysis includes finding the optimal dynamic trajectory of incarceration and violence prevention inteverventions. Those trajectories yield some surprising results, including situations in which myopic decision makers will invest more in prevention than will far-sighted decision makers.
Large magnetoresistance in La2/3Ca1/3MnO3 thin films induced by metal masked ion damage technique
Creators: name: Zhang, M. J.
name: Li, J.
name: Peng, Z. H.
name: Zheng, D. N.
name: Jin, A. Z.
name: Gu, C. Z.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: e have developed a simple process to obtain large magnetoresistance (MR) in perovskite manganite thin films by a combination of focused ion beam (FIB) milling and 120 keV H$_{2}^{+}$ ion implantation. Metal slits about 70 nm in width were printed by 30 kV focused Ga ion beam nanolithography on a 4 mm track, and the materials in these slits are then irradiated by the accelerated H$_{2}^{+}$ ions. Using this method, in a magnetic field of 5 T we can get a MR${>}$60% over a 230 K temperature scope, with a maximum value of 95% at around 70 K. This technique is very promising in terms of its simplicity and flexibility of fabrication and has potential for high-density integration.
description: 3 pages, 5 figures
Factors that influence field hockey footwear selection: An online survey
Creators: name: Derry, Christopher
name: Menz, Hylton
name: Kryger, Katrine Okholm
name: Thompson, Athol
name: Hoey, Caoimhe
name: Bonanno, Daniel
Publisher: name: La Trobe
Year: 2024
Subjects: classificationCode: 42
subject: Health sciences
subject: FOS: Health sciences
classificationCode: 3202
subject: Clinical sciences
classificationCode: 4201
subject: Allied health and rehabilitation science
classificationCode: 4207
subject: Sports science and exercise

description: Abstract: Background: Little is known about factors that influence footwear selection by field hockey players. Methods: An online survey was used to collect data on participant demographics and physical characteristics, factors influencing footwear selection, perceptions regarding footwear design features on injury and performance, and experiences regarding usability. Nominal and ordinal data were described as absolute frequencies and relative frequencies. Free text responses were analysed using content analysis. Sex-related differences in quantitative and qualitative data were explored. Results: A total of 401 hockey players completed the survey. Participants reported that fit, comfort, support, and cushioning were the most important factors when selecting hockey footwear. Most hockey players believed that stud design could influence athletic performance (65%) and injury risk (63%) but reported having no preference on outsole design or stud shape. Most participants (63%) used hockey-specific footwear, but 46% of female hockey players did not, with 40% using trail running footwear instead. Qualitative analysis revealed that hockey players, particularly female participants, encounter difficulties finding properly fitting footwear. They desire more options for wide or narrow feet and face challenges in accessing suitable hockey shoes due to limited choices and availability. Conclusions: With over a third of field hockey players not using hockey-specific footwear, future research should attempt to understand the reasons and assess the impact of different footwear features on comfort, performance, injury risk, and usability.
The open flux evolution of a solar-mass star on the main sequence
Creators: name: See, V.
name: Jardine, M.
name: Vidotto, A. A.
name: Donati, J. -F.
name: Saikia, S. Boro
name: Fares, R.
name: Folsom, C. P.
name: Jeffers, S. V.
name: Marsden, S. C.
name: Morin, J.
name: Petit, P.
name: Collaboration, the BCool
Publisher: name: arXiv
Year: 2017
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: Magnetic activity is known to be correlated to the rotation period for moderately active main sequence solar-like stars. In turn, the stellar rotation period evolves as a result of magnetised stellar winds that carry away angular momentum. Understanding the interplay between magnetic activity and stellar rotation is therefore a central task for stellar astrophysics. Angular momentum evolution models typically employ spin-down torques that are formulated in terms of the surface magnetic field strength. However, these formulations fail to account for the magnetic field geometry, unlike those that are expressed in terms of the open flux, i.e. the magnetic flux along which stellar winds flow. In this work, we model the angular momentum evolution of main sequence solar-mass stars using a torque law formulated in terms of the open flux. This is done using a potential field source surface model in conjunction with the Zeeman-Doppler magnetograms of a sample of roughly solar-mass stars. We explore how the open flux of these stars varies with stellar rotation and choice of source surface radii. We also explore the effect of field geometry by using two methods of determining the open flux. The first method only accounts for the dipole component while the second accounts for the full set of spherical harmonics available in the Zeeman-Doppler magnetogram. We find only a small difference between the two methods, demonstrating that the open flux, and indeed the spin-down, of main sequence solar-mass stars is likely dominated by the dipolar component of the magnetic field.
description: 12 pages, 7 figures, accepted to MNRAS
Cycles of Violence: A Dynamic Control Analysis (or Model?)
Creators: name: Caulkins, Jonathan
name: Feichtinger, Gustav
name: Tragler, Gernot
name: Veliov, Vladimir M.
Publisher: name: Carnegie Mellon University
Year: 2002
Subjects: subject: Information Systems
subject: FOS: Computer and information sciences
subject: 160510 Public Policy
subject: FOS: Political science

description: This paper introduce and analyze a simple model of cycle of violence in which oscillations are generated when surges in lethal violence shrink the pool of active violent offenders. Models with such endogenously induced variation may help explain why historically observed trends in violence are generally not well correlated with exogenous forcing functions, such as changes in the state of the economy. The analysis includes finding the optimal dynamic trajectory of incarceration and violence prevention inteverventions. Those trajectories yield some surprising results, including situations in which myopic decision makers will invest more in prevention than will far-sighted decision makers.
Additional file 10 of The effects of testosterone on bone health in males with testosterone deficiency: a systematic review and meta-analysis
Creators: name: Zhang, Zhichao
name: Kang, Deying
name: Li, Hongjun
Publisher: name: figshare
Year: 2020
Subjects: subject: Physiology
subject: FOS: Biological sciences
subject: Sociology
subject: FOS: Sociology
subject: Biological Sciences not elsewhere classified
subject: Developmental Biology
subject: Science Policy
subject: Computational Biology

description: Additional file 10.
title: Urban Food Systems: Applying Life Cycle Assessment in Built Environments and Aquaponics
title: Urban Food Systems
titleType: AlternativeTitle
Creators: name: Ianchenko, Alex
name: Proksch, Gundula
Publisher: name: University of Massachusetts Amherst
Year: 2019
Subjects: subject: open
subject: life cycle assessment
subject: urban agriculture
subject: aquaponics
subject: Architectural Technology
subject: Architecture
subject: FOS: Civil engineering

description: As the building sector faces global challenges that affect urban supplies of food, water and energy, multifaceted sustainability solutions need to be re-examined through the lens of built environments. Aquaponics, a strategy that combines recirculating aquaculture with hydroponics to optimize fish and plant production, has been recognized as one of "ten technologies which could change our lives" by merit of its potential to revolutionize how we feed urban populations. To holistically assess the environmental performance of urban aquaponic farms, impacts generated by aquaponic systems must be combined with impacts generated by host envelopes. This paper outlines the opportunities and challenges of using life cycle assessment (LCA) to evaluate and design urban aquaponic farms. The methodology described here is part of a larger study of urban integration of aquaponics conducted by the interdisciplinary research consortium CITYFOOD. First, the challenges of applying LCA in architecture and agriculture are outlined. Next, the urban aquaponic farm is described as a series of unit process flows. Using the ISO 14040:2006 framework for developing an LCA, subsequent LCA phases are described, focusing on scenario-specific challenges and tools. Particular attention is given to points of interaction between growing systems and host buildings that can be optimized to serve both. Using a hybrid LCA framework that incorporates methods from the building sector as well as the agricultural sector, built environment professionals can become key players in interdisciplinary solutions for the food-water-energy nexus and the design of sustainable urban food systems.
Rapid Gamma-ray variability of NGC 1275
Creators: name: Baghmanyan, V.
name: Gasparyan, S.
name: Sahakyan, N.
Publisher: name: arXiv
Year: 2017
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: We report on a detailed analysis of the $γ$-ray light curve of NGC 1275 using the Fermi large area telescope data accumulated in 2008-2017. Major $γ$-ray flares were observed in October 2015 and December 2016/January 2017 when the source reached a daily peak flux of $(2.21\pm0.26)\times10^{-6}\:{\rm photon\:cm^{-2}\:s^{-1}}$, achieving a flux of $(3.48\pm0.87)\times10^{-6}\:{\rm photon\:cm^{-2}\:s^{-1}}$ within 3 hours, which corresponds to an apparent isotropic $γ$-ray luminosity of $\simeq3.84\times10^{45}\:{\rm erg\:s^{-1}}$. The most rapid flare had e-folding time as short as $1.21\pm0.22$ hours which had never been previously observed for any radio galaxy in $γ$-ray band. Also $γ$-ray spectral changes were observed during these flares: in the flux versus photon index plane the spectral evolution follows correspondingly a counter clockwise and a clockwise loop inferred from the light curve generated by an adaptive binning method. On December 30, 2016 and January 01, 2017 the X-ray photon index softened ($Γ_{\rm X}\simeq 1.75-1.77$) and the flux increased nearly $\sim3$ times as compared with the quiet state. The observed hour-scale variability suggests a very compact emission region ($R_γ\leq5.22\times10^{14}\:(δ/4)\:{\rm cm}$) implying that the observed emission is most likely produced in the subparsec-scale jet if the entire jet width is responsible for the emission. During the active periods the $γ$-ray photon index hardened, shifting the peak of the high energy spectral component to $>{\rm GeV}$, making it difficult to explain the observed X-ray and $γ$-ray data in the standard one-zone synchrotron self-Compton model.
description: Accepted for publication in ApJ
On supersymmetric Minkowski vacua in IIB orientifolds
Creators: name: Krefl, Daniel
name: Lust, Dieter
Publisher: name: arXiv
Year: 2006
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: Supersymmetric Minkowski vacua in IIB orientifold compactifications based on orbifolds with background fluxes and non-perturbative superpotentials are investigated. Especially, microscopic requirements and difficulties to obtain such vacua are discussed. We show that orbifold models with one and two complex structure moduli and supersymmetric 2-form flux can be successfully stabilized to such vacua. By taking additional gaugino condensation on fixed space-time filling D3-branes into account also models without complex structure can be consistently stabilized to Minkowski vacua.
description: 17 pages, 2 figures; More detailed proof for absence of complex flat directions in susy AdS vacua given; Footnotes and reference added
Radiative gravitational collapse to spherical, toroidal and higher genus black holes
Creators: name: Mena, Filipe C.
name: Oliveira, João M.
Publisher: name: arXiv
Year: 2017
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We derive the matching conditions between FLRW and generalised Vaidya spacetimes with spherical, planar or hyperbolic symmetry, across timelike hypersurfaces. We then construct new models of gravitational collapse of FLRW spacetimes with a negative cosmological constant having electromagnetic radiation in the exterior. The final state of the collapse are asymptotically AdS black holes with spherical, toroidal or higher genus topologies. We analyse the collapse dynamics including trapped surface formation, for various examples.
description: 20 pages, 3 figures, to appear in Annals of Physics
How to compute the length of a geodesic on a Riemannian manifold with small error in arbitrary Sobolev norms
Creators: name: Kampen, Jörg
Publisher: name: Weierstrass Institute
Year: 2008
Subjects: subject: length of geodesic
subject: regular polynomial interpolation
subject: 65N99
subject: 35F20
subject: 35K10

description: We compute the length of geodesics on a Riemannian manifold by regular polynomial interpolation of the global solution of the eikonal equation related to the line element $ds^2=g_ijdx^idx^j$ of the manifold. Our algorithm approximates the length functional in arbitrarily strong Sobolev norms. Error estimates are obtained where the geometric information is used. It is pointed out how the algorithm can be used to get accurate approximations of solutions of linear parabolic partial differential equations leading to obvious applications in finance, physics and other sciences.
Cues and Heuristics on Capitol Hill: Network-Based Shortcuts in Legislative Decision Making
Creators: name: Gross, Justin
Publisher: name: Carnegie Mellon University
Year: 2008
Subjects: subject: Information Systems
subject: FOS: Computer and information sciences
subject: 160510 Public Policy
subject: FOS: Political science

description: Heinz College paper
D-SLATS: Distributed Simultaneous Localization and Time Synchronization
Creators: name: Alanwar, Amr
name: Ferraz, Henrique
name: Hsieh, Kevin
name: Thazhath, Rohit
name: Martin, Paul
name: Hespanha, Joao
name: Srivastava, Mani
Publisher: name: arXiv
Year: 2017
Subjects: subject: Machine Learning (cs.LG)
subject: Distributed, Parallel, and Cluster Computing (cs.DC)
subject: Networking and Internet Architecture (cs.NI)
subject: Robotics (cs.RO)
subject: Systems and Control (eess.SY)
subject: FOS: Computer and information sciences
subject: FOS: Electrical engineering, electronic engineering, information engineering

description: Through the last decade, we have witnessed a surge of Internet of Things (IoT) devices, and with that a greater need to choreograph their actions across both time and space. Although these two problems, namely time synchronization and localization, share many aspects in common, they are traditionally treated separately or combined on centralized approaches that results in an ineffcient use of resources, or in solutions that are not scalable in terms of the number of IoT devices. Therefore, we propose D-SLATS, a framework comprised of three different and independent algorithms to jointly solve time synchronization and localization problems in a distributed fashion. The First two algorithms are based mainly on the distributed Extended Kalman Filter (EKF) whereas the third one uses optimization techniques. No fusion center is required, and the devices only communicate with their neighbors. The proposed methods are evaluated on custom Ultra-Wideband communication Testbed and a quadrotor, representing a network of both static and mobile nodes. Our algorithms achieve up to three microseconds time synchronization accuracy and 30 cm localization error.
Generalized seniority scheme in light Sn isotopes
Creators: name: Sandulescu, N.
name: Blomqvist, J.
name: Engeland, T.
name: Hjorth-Jensen, M.
name: Holt, A.
name: Liotta, R. J.
name: Osnes, E.
Publisher: name: arXiv
Year: 1996
Subjects: subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: The yrast generalized seniority states are compared with the corresponding shell model states for the case of the Sn isotopes $^{104-112}$Sn. For most of the cases the energies agree within 100 keV and the overlaps of the wave functions are greater than 0.7.
description: 8 pages, revtex. Submitted to Phys. Rev. C
Method for computing the nonlinear refractive index via Keldysh theory
Creators: name: Brée, Carsten
name: Demircan, Ayhan
name: Steinmeyer, Günter
Publisher: name: Weierstrass Institute
Year: 2008
Subjects: subject: Nonlinear Optics
subject: Laser-matter interaction
subject: 78A10
subject: 78A60

description: By making use of the multiphoton limit of Keldysh theory, we show that for the case of two-photon absorption a Kramers-Kronig expansion can be used to calculate the nonlinear refractive index for different wavelenghts. We apply this method to various inert gases and compare the obtained numerical values to different experimental and theoretical results for the dispersion of the Kerr nonlinearity.
Leistungen des ökologischen Landbaus für Umwelt und Gesellschaft. 2. überarbeitete und ergänzte Auflage
Creators: name: Sanders, Jürn
name: Heß, Jürgen
name: Sanders, Jürn
name: Heß, Jürgen
Publisher: name: Unknown
Year: 2019
Subjects: Farm Management

description: Organic farming is considered to be a sustainable land use system and is therefore specifically supported by policy. Although the interactions between organic farming and the resulting socially relevant environmental benefits have received increasingly widespread recognition in science and politics, the potential of organic farming to solve the environmental and resource challenges of our time are still assessed differently. Against this background, the aim of this study was to conduct a comprehensive analysis and evaluation of scientific studies on public goods provided by organic farming in the following areas: water protection, soil fertility, biodiversity, climate mitigation, climate adaptation, resource efficiency, and animal welfare. As part of a literature review, a total of 528 studies with 2,816 pairs (organic vs. conventional farming) were selected for the analysis. These studies had to meet the following criteria: (a) publication period: January 1990 to March 2018; (b) region: temperate climates; (c) study design: at least one organic/conventional pair, and (d) language: studies in German or English. The results of the comparisons between organic and conventional farming were evaluated using descriptive statistics (min, max, mean and median values) and graphically illustrated using box plot diagrams. In addition, the results of the organic variant of the individual pairs were classified on the basis of quantitative criteria with regard to their relative characteristics compared to the conventional variant (Öko +, Öko =, Öko ‐). The evaluation of the scientific literature found that, across all indicators for the fields of environmental protection and resource conservation, organic management showed advantages over conventional management in 58 % of the pairs analysed. No differences were found for 28 %, and in 14 % of the comparison pairs, the conventional management was more advantageous. No clear picture was drawn regarding animal welfare. No substantial differences were found between organic and conventional livestock across all animal species and production forms in 46 % of the comparison pairs. Organic management showed advantages in 35 % of the pairs, whereas conventional management performed better in 19 % of the pairs. However, very few studies have been found considering animal welfare in a comprehensive sense...
description: DOI:10.3220/REP1576488624000
First-Principles Supercell Calculations of Small Polarons with Proper Account for Long-Range Polarization Effects
Creators: name: Kokott, Sebastian
name: Levchenko, Sergey V
name: Rinke, Patrick
name: Scheffler, Matthias
Publisher: name: arXiv
Year: 2017
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: We present a density functional theory (DFT) based supercell approach for modeling small polarons with proper account for the long-range elastic response of the material. Our analysis of the supercell dependence of the polaron properties (e.g., atomic structure, binding energy, and the polaron level) reveals long-range electrostatic effects and the electron-phonon interaction as the two main contributors. We develop a correction scheme for DFT polaron calculations that significantly reduces the dependence of polaron properties on the DFT exchange-correlation functional and the size of the supercell in the limit of strong electron-phonon coupling. Using our correction approach, we present accurate all-electron full-potential DFT results for small polarons in rocksalt MgO and rutile TiO$_2$.
A Near-Infrared L Band Survey of the Young Embedded Cluster NGC 2024
Creators: name: Haisch, Karl E.
name: Lada, Elizabeth A.
name: Lada, Charles J.
Publisher: name: arXiv
Year: 2000
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We present the results of the first sensitive L band (3.4 micron) imaging study of the nearby young embedded cluster NGC 2024. Two separate surveys of the cluster were acquired in order to obtain a census of the circumstellar disk fraction in the cluster. From an analysis of the JHKL colors of all sources in our largest area, we find an infrared excess fraction of > 86%. The JHKL colors suggest that the infrared excesses arise in circumstellar disks, indicating that the majority of the sources which formed in the NGC 2024 cluster are currently surrounded by, and likely formed with circumstellar disks. The excess fractions remain very high, within the errors, even at the faintest L magnitudes from our deeper surveys suggesting that disks form around the majority of the stars in very young clusters such as NGC 2024 independent of mass. From comparison with published JHKL observations of Taurus, we find the K - L excess fraction in NGC 2024 to be consistent with a high initial incidence of circumstellar disks in both NGC 2024 and Taurus. Because NGC 2024 represents a region of much higher stellar density than Taurus, this suggests that disks may form around most of the YSOs in star forming regions independent of environment. We find a relatively constant JHKL excess fraction with increasing cluster radius, indicating that the disk fraction is independent of location in the cluster. In contrast, the JHK excess fraction increases rapidly toward the central region of the cluster, and is most likely due to contamination of the K band measurements by bright nebulosity in the central regions of the cluster. We identify 45 candidate protostellar sources in the central regions of the NGC 2024 cluster, and find a lower limit on the protostellar phase of early stellar evolution of 0.4 - 1.4 X 10^5 yr, similar to that in Taurus.
description: 37 pages, 8 figures, 3 tables, To appear in the Astronomical Journal
Additional file 1 of The effects of testosterone on bone health in males with testosterone deficiency: a systematic review and meta-analysis
Creators: name: Zhang, Zhichao
name: Kang, Deying
name: Li, Hongjun
Publisher: name: figshare
Year: 2020
Subjects: subject: Medicine
subject: Physiology
subject: FOS: Biological sciences
subject: Sociology
subject: FOS: Sociology
subject: Biological Sciences not elsewhere classified
subject: Developmental Biology
subject: Science Policy

description: Additional file 1. Search Strategies.
Enhanced Photon Extraction from a Nanowire Quantum Dot Using a Bottom-Up Photonic Shell
Creators: name: Jeannin, Mathieu
name: Crémel, Thibault
name: Häyrynen, Teppo
name: Gregersen, Niels
name: Bellet-Amalric, Edith
name: Nogues, Gilles
name: Kheng, Kuntheak
Publisher: name: arXiv
Year: 2017
Subjects: subject: Optics (physics.optics)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: Semiconductor nanowires offer the possibility to grow high-quality quantum-dot heterostructures, and, in particular, CdSe quantum dots inserted in ZnSe nanowires have demonstrated the ability to emit single photons up to room temperature. In this paper, we demonstrate a bottom-up approach to fabricate a photonic fiberlike structure around such nanowire quantum dots by depositing an oxide shell using atomic-layer deposition. Simulations suggest that the intensity collected in our NA = 0.6 microscope objective can be increased by a factor 7 with respect to the bare nanowire case. Combining microphotoluminescence, decay time measurements, and numerical simulations, we obtain a fourfold increase in the collected photoluminescence from the quantum dot. We show that this improvement is due to an increase of the quantum-dot emission rate and a redirection of the emitted light. Our ex situ fabrication technique allows a precise and reproducible fabrication on a large scale. Its improved extraction efficiency is compared to state-of-the-art top-down devices.
Test of cold denaturation mechanism for proteins as a function of water's structure
Creators: name: Marques, Manuel I.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Other Condensed Matter (cond-mat.other)
subject: Soft Condensed Matter (cond-mat.soft)
subject: FOS: Physical sciences

description: In a recent paper [PRL 91, 138103 (2003)] a new mechanism to explain the cold denaturation of proteins, based on the loss of local low-density water structure, has been proposed. In the present paper this mechanism is tested by means of full atom numerical simulations. In good agreement with this proposal, cold denaturation resulting in the unfolded state was found at the High Density Liquid (HDL) state of water, at which the amount of open tetragonal hydrogen bonds decreases at cooling.
description: 5 pages, 5 figures
Deviant xulq atvorning ijtimoiy, psixologik, biologik sabablari
Creators: name: Rustamxoʻjayeva Shaxnozaxon Gʻiyosxon qizi
Publisher: name: Zenodo
Year: 2025

description: Annotatsiya: Ushbu maqolada deviant (me’yordan og‘uvchi) xulq-atvorning yuzaga kelishiga sabab bo‘luvchi omillar chuqur tahlil qilingan. Xususan, ijtimoiy omillar sifatida oila, muhit, ta’lim tizimi va ijtimoiy nazorat mexanizmlarining yetishmasligi ko‘rib chiqilgan. Psixologik jihatdan shaxsiy xususiyatlar, travmatik tajribalar va ruhiy salomatlik holati ta’siri o‘rganilgan. Biologik sabablar esa genetik moyillik, neyrofiziologik o‘zgarishlar va irsiy omillar orqali yoritilgan. Maqolada ushbu omillarning o‘zaro bog‘liqligi va jamiyatdagi deviant xulq-atvorga olib keluvchi asosiy risk faktorlarining tahlili berilgan. Tadqiqot natijalari deviant xulqning oldini olish va unga qarshi kurashishda tizimli yondashuv zarurligini ta’kidlaydi.

Kalit so‘zlar: deviant xulq-atvor, ijtimoiy omillar, psixologik sabablar, biologik omillar, ijtimoiy nazorat, shaxsiy xususiyatlar, genetik moyillik, ruhiy salomatlik, ijtimoiy muhit, og‘ish holatlari.
Counterterror and Counterdrug policies: Comparisons and Contrasts
Creators: name: Caulkins, Jonathan
name: Kleiman, Mark A.R.
name: Reuter, Peter
Publisher: name: Carnegie Mellon University
Year: 2002
Subjects: subject: Information Systems
subject: FOS: Computer and information sciences
subject: 160510 Public Policy
subject: FOS: Political science

description: Heinz College paper
The infrared behavior of the gluon and ghost propagators in SU(2) Yang-Mills theory in the maximal Abelian gauge
Creators: name: Capri, M. A. L.
name: Dudal, D.
name: Gracey, J. A.
name: Lemes, V. E. R.
name: Sobreiro, R. F.
name: Sorella, S. P.
name: Thibes, R.
name: Verschelde, H.
Publisher: name: arXiv
Year: 2006
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We report on some recent analytical results on the behaviour of the gluon and ghost propagators in Euclidean SU(2) Yang-Mills theory quantized in the maximal Abelian gauge (MAG). This gauge is of particular interest for the dual superconductivity picture to explain color confinement. Two kinds of effects are taken into account: those arising from a treatment of Gribov copies in the MAG and those arising from a dynamical mass originating in a dimension two gluon condensate. The diagonal component of the gluon propagator displays the typical Gribov-type behaviour, while the off-diagonal component is of the Yukawa type due to the dynamical mass. These results are in qualitative agreement with available lattice data on the gluon propagators. The off-diagonal ghost propagator exhibits an infrared enhancement due to the Gribov restriction, while the diagonal one remains unaffected.
description: 6 pages. Talk given by S.P. Sorella at the "I Latin American Workshop on High Energy Phenomenology (I LAWHEP)", December 1-3 2005, Instituto de Fisica, UFRGS, Porto Alegre, Rio Grande Do Sul, Brasil
Doña Teresa en la cueva. Relación de los varios sucesos de Don Manuel Contreras y Doña Teresa de Rivera: Digital edition
Creators: name: Leblanc Elina
Publisher: name: Zenodo
Year: 2024
Subjects: Spanish literature
Digital edition
XML-TEI

description: Digital edition of a Spanish pliego de cordel, published by the Andalusian printer José María Moreno (19th c.). It contains the XML-TEI file of the edition, as well as the files that led to this edition, i.e. the digital facsimiles (raw and retouched), and the transcription produced by the OCR tool Transkribus (PAGE-XML). This digital edition is a part of the research project Desenrollando el cordel / Untangling the cordel / Démêler le cordel (2020-2024), led by professor Constance Carta at the University of Geneva and supported by the philanthropic Sandoz-Monique de Meuron Family Foundation.