cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Wee partons in large nuclei: from virtual dream to hard reality
Creators: name: Venugopalan, Raju
Publisher: name: arXiv
Year: 1995
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: We construct a weak coupling, many body theory to compute parton distributions in large nuclei for $x\ll A^{-1/3}$. The wee partons are highly coherent, non--Abelian Weizsäcker--Williams fields. Radiative corrections to the classical results are discussed. The parton distributions for a single nucleus provide the initial conditions for the dynamical evolution of matter formed in ultrarelativistic nuclear collisions.
description: Plenary talk at Quark Matter '95, Monterey, CA, Jan 1995; LaTex file 16 pages, uses espcrc2.sty; 1 separate uuencoded figure file which uses epsf.sty
Casa Grande National Monument, Vibration Investigation
Creators: name: King, Kenneth
name: King, Elaine
Year: 1998
Subjects: subject: Classic Period
valueUri: https://core.tdar.org/browse/temporal-keyword/125/classic-period
subject: Hohokam
valueUri: https://core.tdar.org/browse/culture-keyword/21/hohokam
subject: Archaeological Feature
valueUri: https://core.tdar.org/browse/site-type/339/archaeological-feature
subject: Non-Domestic Structures
valueUri: https://core.tdar.org/browse/site-type/309/non-domestic-structures
subject: Domestic Structure or Architectural Complex
valueUri: https://core.tdar.org/browse/site-type/251/domestic-structure-or-architectural-complex
subject: Wood
valueUri: https://core.tdar.org/browse/material-type/15/wood
subject: Ceramic
valueUri: https://core.tdar.org/browse/material-type/1/ceramic
subject: Building Materials
valueUri: https://core.tdar.org/browse/material-type/8/building-materials
subject: Architectural Documentation
valueUri: https://core.tdar.org/browse/investigation-type/16/architectural-documentation
subject: Historic Background Research
valueUri: https://core.tdar.org/browse/investigation-type/18/historic-background-research
subject: Collections Research
valueUri: https://core.tdar.org/browse/investigation-type/3/collections-research
subject: Data Recovery / Excavation
valueUri: https://core.tdar.org/browse/investigation-type/5/data-recovery-excavation
subject: Site Evaluation / Testing
valueUri: https://core.tdar.org/browse/investigation-type/10/site-evaluation-testing
subject: Site Stabilization
valueUri: https://core.tdar.org/browse/investigation-type/11/site-stabilization

description: This document is a report on vibrations that could potentially damage the Great House in Compound A at the Casa Grande Ruins National Monument. The report details the procedures involved in testing vibrations and includes a chart indicating the natural vibration parameters at the Great House. Elevation diagrams show placement of testing devices and at risk locations are identified. Test analysis is also provided.
Additional file 1 of Conducting molybdenum sulfide/graphene oxide/polyvinyl alcohol nanocomposite hydrogel for repairing spinal cord injury
Creators: name: Chen, Lingling
name: Wang, Wanshun
name: Lin, Zefeng
name: Lu, Yao
name: Chen, Hu
name: Li, Binglin
name: Li, Zhan
name: Xia, Hong
name: Li, Lihua
name: Zhang, Tao
Publisher: name: figshare
Year: 2022
Subjects: subject: Biochemistry
subject: Genetics
subject: FOS: Biological sciences
subject: Neuroscience
subject: Physiology
subject: Biotechnology
subject: Chemical Sciences not elsewhere classified
subject: Immunology
subject: FOS: Clinical medicine
subject: Biological Sciences not elsewhere classified
subject: Developmental Biology

description: Additional file 1: Fig. S1. Mapping images of MoS2/GO CN. Fig. S2. XPS spectra of MoS2/GO CN. Fig. S3. POD-like properties of GO, MoS2, and MoS2/GO NSs. Fig. S4. Adhesion tests of hydrogels to spinal cord tissue in vitro. Fig. S5. Zeta potential of nanocomposite hydrogels. Fig. S6. Conductivity test of nanocomposite hydrogels in vitro. Fig. S7. Photocurrent of PVA, GO/PVA, MoS2/PVA and MoS2/GO/PVA hydrogels. Fig. S8. The degradation of the nanocomposite hydrogels in vitro. Fig. S9. The proliferation rate of the nanocomposite hydrogels in vitro. Fig. S10. Effects of hydrogels on ROS level in RAW264.7 cells. Fig. S11. Safety test of nanocomposite hydrogels in vivo.
Machine learning method for state preparation and gate synthesis on photonic quantum computers
Creators: name: Arrazola, Juan Miguel
name: Bromley, Thomas R.
name: Izaac, Josh
name: Myers, Casey R.
name: Brádler, Kamil
name: Killoran, Nathan
Publisher: name: arXiv
Year: 2018
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We show how techniques from machine learning and optimization can be used to find circuits of photonic quantum computers that perform a desired transformation between input and output states. In the simplest case of a single input state, our method discovers circuits for preparing a desired quantum state. In the more general case of several input and output relations, our method obtains circuits that reproduce the action of a target unitary transformation. We use a continuous-variable quantum neural network as the circuit architecture. The network is composed of several layers of optical gates with variable parameters that are optimized by applying automatic differentiation using the TensorFlow backend of the Strawberry Fields photonic quantum computer simulator. We demonstrate the power and versatility of our methods by learning how to use short-depth circuits to synthesize single photons, Gottesman-Kitaev-Preskill states, NOON states, cubic phase gates, random unitaries, cross-Kerr interactions, as well as several other states and gates. We routinely obtain high fidelities above 99\% using short-depth circuits, typically consisting of a few hundred gates. The circuits are obtained automatically by simply specifying the target state or gate and running the optimization algorithm.
description: 13 pages, 14 figures. Source code for the algorithms employed in this paper is available at https://github.com/XanaduAI/quantum-learning
Initial results on energy resolution of the NEXT-White detector
Creators: name: Renner, J.
name: Ferrario, P.
name: Martínez-Lema, G.
name: Monrabal, F.
name: Para, A.
name: Gómez-Cadenas, J. J.
name: Adams, C.
name: Álvarez, V.
name: Arazi, L.
name: Azevedo, C. D. R.
name: Bailey, K.
name: Ballester, F.
name: Benlloch-Rodríguez, J. M.
name: Borges, F. I. G. M.
name: Botas, A.
name: Cárcel, S.
name: Carrión, J. V.
name: Cebrián, S.
name: Conde, C. A. N.
name: Díaz, J.
name: Diesburg, M.
name: Escada, J.
name: Esteve, R.
name: Felkai, R.
name: Fernandes, A. F. M.
name: Fernandes, L. M. P.
name: Ferreira, A. L.
name: Freitas, E. D. C.
name: Generowicz, J.
name: Goldschmidt, A.
name: González-Díaz, D.
name: Guenette, R.
name: Gutiérrez, R. M.
name: Hafidi, K.
name: Hauptman, J.
name: Henriques, C. A. O.
name: Hernandez, A. I.
name: Morata, J. A. Hernando
name: Herrero, V.
name: Johnston, S.
name: Jones, B. J. P.
name: Kekic, M.
name: Labarga, L.
name: Laing, A.
name: Lebrun, P.
name: López-March, N.
name: Losada, M.
name: Mano, R. D. P.
name: Martín-Albo, J.
name: Martínez, A.
name: McDonald, A. D.
name: Monteiro, C. M. B.
name: Mora, F. J.
name: Vidal, J. Muñoz
name: Musti, M.
name: Nebot-Guinot, M.
name: Novella, P.
name: Nygren, D. R.
name: Palmeiro, B.
name: Pérez, J.
name: Psihas, F.
name: Querol, M.
name: Repond, J.
name: Riordan, S.
name: Ripoll, L.
name: Rodríguez, J.
name: Rogers, L.
name: Romo-Luque, C.
name: Santos, F. P.
name: Santos, J. M. F. dos
name: Simón, A.
name: Sofka, C.
name: Sorel, M.
name: Stiegler, T.
name: Toledo, J. F.
name: Torrent, J.
name: Veloso, J. F. C. A.
name: Webb, R.
name: White, J. T.
name: Yahlali, N.
Publisher: name: arXiv
Year: 2018
Subjects: subject: Instrumentation and Detectors (physics.ins-det)
subject: FOS: Physical sciences

description: One of the major goals of the NEXT-White (NEW) detector is to demonstrate the energy resolution that an electroluminescent high pressure xenon TPC can achieve for high energy tracks. For this purpose, energy calibrations with 137Cs and 232Th sources have been carried out as a part of the long run taken with the detector during most of 2017. This paper describes the initial results obtained with those calibrations, showing excellent linearity and an energy resolution that extrapolates to approximately 1% FWHM at Q$_{ββ}$.
description: 14 pages, 8 figures, Accepted for publication in JINST
Partial representations of orderings
Creators: name: Bosi, Gianni
name: Estevan, Asier
name: Zuanon, Magali
Publisher: name: arXiv
Year: 2024
Subjects: subject: General Topology (math.GN)
subject: FOS: Mathematics

description: In the present paper a new concept of representability is introduced, which can be applied to not total and also to intransitive relations (semiorders in particular). This idea tries to represent the orderings in the simplest manner, avoiding any unnecessary information. For this purpose, the new concept of representability is developed by means of partial functions, so that other common definitions of representability (i.e. (Richter-Peleg) multi-utility, Scott-Suppes representability,...) are now particular cases in which the partial functions are actually functions. The paper also presents a collection of examples and propositions showing the advantages of this kind of representations, particularly in the case of partial orders and semiorders, as well as some results showing the connections between distinct kinds of representations.
Phonon-assisted damping of plasmons in three- and two-dimensional metals
Creators: name: Caruso, Fabio
name: Novko, Dino
name: Draxl, Claudia
Publisher: name: arXiv
Year: 2018
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: We investigate the effects of crystal lattice vibrations on the dispersion of plasmons. The loss function of the homogeneous electron gas (HEG) in two and three dimensions is evaluated numerically in presence of electronic coupling to an optical phonon mode. Our calculations are based on many-body perturbation theory for the dielectric function as formulated by the Hedin-Baym equations in the Fan-Migdal approximation. The coupling to phonons broadens the spectral signatures of plasmons in the electron-energy loss spectrum (EELS) and it induces the decay of plasmons on timescales shorter than 1 ps. Our results further reveal the formation of a kink in the plasmon dispersion of the 2D HEG, which marks the onset of plasmon-phonon scattering. Overall, these features constitute a fingerprint of plasmon-phonon coupling in the EELS of simple metals. It is shown that these effects may be accounted for by resorting to a simplified treatment of the electron-phonon interaction which is amenable to first-principles calculations.
description: 8 pages, 4 figures
The Number Density of Low Surface Brightness Galaxies with 23
Creators: name: Dalcanton, J. J.
name: Spergel, D. N.
name: Gunn, J. E.
name: Schmidt, M.
name: Schneider, D. P.
Publisher: name: arXiv
Year: 1997
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We present results of a large area CCD survey for low surface brightness galaxies (LSBs) that reaches central surface brightnesses of mu_0=25 mag/sqr-" in V. We have analyzed 17.5 degrees of transit scan data, and identified a statistical subset of 7 pure disk LSB's with mu_0 fainter than 23V-mag/sqr-" and with angular exponential scale lengths larger than alpha=2.5". The LSB detection is entirely automated, and the selection efficiency of the survey is well-quantified. After correcting for the selection efficiency, we find a surface density of 4.1^{+2.6}_{-2.1} galaxies/deg^2 for LSBs in the considered range of mu_0 and alpha (90% confidence levels). The final sample of LSBs are at distances comparable to those probed by large galaxy catalogs, and have intrinsic scale lengths of 1.7-3.6 kpc (H=50km/s/Mpc), based upon optical redshifts. We use the redshifts and the selection efficiency to calculate the number density in LSBs with 23
description: Latex file, 41 pages total, including 13 pages of figures, uses aaspp4.sty & psfig.sty. Accepted to the Astronomical Journal
Policy Optimization via Importance Sampling
Creators: name: Metelli, Alberto Maria
name: Papini, Matteo
name: Faccio, Francesco
name: Restelli, Marcello
Publisher: name: arXiv
Year: 2018
Subjects: subject: Machine Learning (cs.LG)
subject: Artificial Intelligence (cs.AI)
subject: Machine Learning (stat.ML)
subject: FOS: Computer and information sciences

description: Policy optimization is an effective reinforcement learning approach to solve continuous control tasks. Recent achievements have shown that alternating online and offline optimization is a successful choice for efficient trajectory reuse. However, deciding when to stop optimizing and collect new trajectories is non-trivial, as it requires to account for the variance of the objective function estimate. In this paper, we propose a novel, model-free, policy search algorithm, POIS, applicable in both action-based and parameter-based settings. We first derive a high-confidence bound for importance sampling estimation; then we define a surrogate objective function, which is optimized offline whenever a new batch of trajectories is collected. Finally, the algorithm is tested on a selection of continuous control tasks, with both linear and deep policies, and compared with state-of-the-art policy optimization methods.
National level data and indicators
Creators: name: Krausmann, Fridolin
name: Wiedenhofer, Dominik
name: Kalt, Gerald
Publisher: name: Zenodo
Year: 2018

description: Presentation on "National level data and indicators" given at the "MAT_STOCKS
 Understanding the Role of Material Stock Patterns for the Transformation to a Sustainable Society, KickOff Workshop" 12.04.2018, Institute of Social Ecology
A topological study for the existence of lower-semicontinuous Richter-Peleg multi-utilities
Creators: name: Bosi, Gianni
name: Estevan, Asier
name: Raventós, Armajac
Publisher: name: arXiv
Year: 2024
Subjects: subject: General Topology (math.GN)
subject: FOS: Mathematics

description: In the present paper we study necessary and sufficient conditions for the existence of a semicontinuous and finite Richter-Peleg multi-utility for a preorder. It is well know that, given a preorder on a topological space, if there is a lower (upper) semicontinuous Richter-Peleg multi-utility, then the topology of the space must be finer than the Upper (resp. Lower) topology. However, this condition does not guarantee the existence of a semicontinuous representation.
 We search for finer topologies which are necessary for semicontinuity, as well as that they could guarantee the existence of a semicontinuous representation. As a result, we prove that Scott topology (that refines the Upper one) must be contained in the topology of the space in case there exists a finite lower semicontinuous Richter-Peleg multi-utility. However, as it is shown, the existence of this representation cannot be guaranteed.
The three loop on-shell renormalization of QCD and QED
Creators: name: Melnikov, Kirill
name: van Ritbergen, Timo
Publisher: name: arXiv
Year: 2000
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We describe a calculation of the on-shell renormalization factors in QCD and QED at the three loop level. Explicit results for the fermion mass renormalization factor Zm and the on-shell fermion wave function renormalization constant Z2 are given. We find that at O(alpha_s^3) the wave function renormalization constant Z2 in QCD becomes gauge dependent also in the on-shell scheme, thereby disproving the ``gauge-independence'' conjecture based on an earlier two-loop result. As a byproduct, we derive an O(alpha_s^3) contribution to the anomalous dimension of the heavy quark field in HQET.
description: 24 pages, 2 figures, revtex
Variations on the Dirac string
Creators: name: Cownden, Brad
name: Frey, Andrew R.
Publisher: name: arXiv
Year: 2018
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: Dirac's original solution of the nontrivial Bianchi identity for magnetic monopoles [Dirac 1948], which redefines the fieldstrength along the Dirac string, diagonalizes the gauge and monopole degrees of freedom. We provide a variant of the Dirac string, which we motivate through a formal expansion of the Bianchi identity. We show how to use our variant prescription to study monopole electrodynamics without reference to a dual potential and provide some applications.
description: 7 pages; v2. minor corrections, added acknowledgments
Simultaneously enhanced strength and ductility in graphene nanosheet/Al-Cu-Mg nano-laminated composites by incorporating coarse domains
Creators: name: Teng, Haoyu
name: Tan, Zhanqiu
name: Zhao, Xihang
name: Fan, Genlian
name: Yue, Zhenming
name: Li, Zhiqiang
name: Xiong, Ding-Bang
Publisher: name: Taylor & Francis
Year: 2022
Subjects: Biophysics
Physical Sciences not elsewhere classified
Cell Biology
Environmental Sciences not elsewhere classified
Biological Sciences not elsewhere classified

description: A heterogeneous structure by designing soft/hard domains with dramatically different strengths is effective to maintain the high ductility of metals but it sacrifices the yield strength. Here we first demonstrate a simultaneous enhancement of yield strength and tensile elongation by ∼20% in graphene nanosheet (GNS)/Al-Cu-Mg nano-laminated composites, with a tensile strength of ∼687 MPa and elongation over 10%, by designing heterogeneous domains with a little difference. The underlying mechanism was investigated by microstructural characterizations and simulations, and the hetero-deformation-induced hardening and nano-precipitation strengthening were mainly responsible for the strength-ductility synergy. This study broadens the understanding of heterostructured materials in pursuit of extraordinary mechanical properties. A novel heterogeneous nano-laminated structure with little domain difference was designed to achieve an excellent strength-ductility combination in GNS/Al-Cu-Mg composites.
Effects of treatment process on larvae growth performance and nutrient yield during cyanobacteria bioconversion by black soldier fly
Creators: name: Gu, P.
name: Chen, L.Q.
name: Zhang, K.N.
name: Hu, H.R.
name: Yang, K.L.
name: Zhang, Z.S.
name: Ren, X.L.
name: Liu, C.
name: Zhang, Z.H.
name: Zhou, J.
name: Miao, H.F.
Publisher: name: Brill Online
Year: 2024
Subjects: classificationCode: 309999
subject: Other agricultural, veterinary and food sciences not elsewhere classified

description: Cyanobacteria blooms, a global environmental problem, have caused serious economic and ecological disasters worldwide. Black soldier fly larvae (BSFL) are known to feed and develop on a wide range of feed sources, which makes the use of BSFL bioconversion promising for harvested cyanobacteria. In this study, cyanobacteria were compounded into feedstock by three different treatments, and then BSFL was placed into the substrates to explore the effect of treatments on BSFL growth performance and nutrient yield. It was found that the alterations in the nutrient composition of the substrate and the content of key compounds (vitamin C and microcystin-LR) caused by different treatments were responsible for the different growth performance of BSFL. Difference in larvae digestive enzyme activities caused by changes in treatment processes and substrate moisture content will ultimately affect the BSFL nutrient production. The larvae stress response to different treatment processes demonstrated that the low moisture content environment has an inhibitory effect on the growth of BSFL, and the harvested cyanobacteria treated by the sun-drying treatment process exhibited less interference on BSFL. Through a brief economic assessment, we conclude that cyanobacteria can only produce benefits with the sun-drying treatment process where the substrate moisture content needs to be maintained at 70-80%, wall-breaking and heating treatment and heating treatment processes showed a deficit due to a higher cost and a lower output. This study provides a reference for promoting the utilization of cyanobacteria and proffer instructive significance for the biotransformation of cyanobacteria by BSFL.
Inverse meson mass ordering in color-flavor-locking phase of high density QCD
Creators: name: Son, D. T.
name: Stephanov, M. A.
Publisher: name: arXiv
Year: 1999
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: We derive the effective Lagrangian for the low-energy massive meson excitations of the color-flavor-locking (CFL) phase of QCD with 3 flavors of light quarks. We compute the decay constants, the maximum velocities, and the masses of the mesons at large baryon chemical potential mu. The decay constants are linear in mu. The meson maximum velocities are close to that of sound. The meson masses in the CFL phase are significantly smaller than in the normal QCD vacuum and depend only on bare quark masses. The order of the meson masses is, to some extent, reversed compared to that in the QCD vacuum. In particular, the lightest particle is eta'.
description: 18 pages, 3 figures
Anomalies and large N limits in matrix string theory
Creators: name: Wynter, Thomas
Publisher: name: arXiv
Year: 1998
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We study the loop expansion for the low energy effective action for matrix string theory. For long string configurations we find the result depends on the ordering of limits. Taking $g_s\to 0$ before $N\to\infty$ we find free strings. Reversing the order of limits however we find anomalous contributions coming from the large $N$ limit that invalidate the loop expansion. We then embed the classical instanton solution into a long string configuration. We find the instanton has a loop expansion weighted by fractional powers of $N$. Finally we identify the scaling regime for which interacting long string configurations have a well defined large $N$ limit. The limit corresponds to large "classical" strings and can be identified with the "dual of the 't Hooft limit, $g_{SYM}^2\sim N$.
description: 13 pages, 1 figure, harvmac.tex, notational errors corrected, references added. Trivial error in section 5 corrected with the result that the domain of validity of the loop expn. is slightly modified
The shape of the Galactic halo with $Gaia$ DR2 RR Lyrae. Anatomy of an ancient major merger
Creators: name: Iorio, G.
name: Belokurov, V.
Publisher: name: arXiv
Year: 2018
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: We use the $Gaia$ DR2 RR Lyrae sample to gain an uninterrupted view of the Galactic stellar halo. We dissect the available volume in slices parallel to the Milky Way's disc to show that within $\sim30$ kpc from the Galactic centre the halo is triaxial, with the longest axis misaligned by $\sim70^{\circ}$ with respect to the Galactic $x$-axis. This anatomical procedure exposes two large diffuse over-densities aligned with the semi-major axis of the halo: the Hercules-Aquila Cloud and the Virgo Over-density. We reveal the kinematics of the entire inner halo by mapping out the amplitudes and directions of the RR Lyrae proper motions. These are then compared to simple models with different anisotropies to demonstrate that the inner halo is dominated by stars on highly eccentric orbits. We interpret the shape of the density and the kinematics of the $Gaia$ DR2 RR Lyrae as evidence in favour of a scenario in which the bulk of the halo was deposited in a single massive merger event.
description: 12 pages, 7 figures; Accepted for publication in MNRAS
Hyperplane arrangements in CoCoA
Creators: name: Palezzato, Elisa
name: Torielli, Michele
Publisher: name: arXiv
Year: 2018
Subjects: subject: Algebraic Geometry (math.AG)
subject: Combinatorics (math.CO)
subject: FOS: Mathematics

description: We introduce the package \textbf{arrangements} for the software CoCoA. This package provides a data structure and the necessary methods for working with hyperplane arrangements. In particular, the package implements methods to enumerate many commonly studied classes of arrangements, perform operations on them, and calculate various invariants associated to them.
Geometric frustration in ordered lattices of plasmonic nanoelements
Creators: name: Rubio, Ana Conde
name: Rodriguez, Arantxa Fraile
name: Espinha, Andre
name: Mihi, Agustin
name: Perez-Murano, Francesc
name: Batlle, Xavier
name: Labarta, Amilcar
Publisher: name: arXiv
Year: 2024
Subjects: subject: Optics (physics.optics)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: Inspired by geometrically frustrated magnetic systems, we present the optical response of three cases of hexagonal lattices of plasmonic nanoelements. All of them were designed using a metal-insulator-metal configuration to enhance absorption of light, with elements in close proximity to exploit near-field coupling, and with triangular symmetry to induce frustration of the dipolar polarization in the gaps between neighboring structures. Both simulations and experimental results demonstrate that these systems behave as perfect absorbers in the visible and/or the near infrared. Besides, the numerical study of the time evolution shows that they exhibit a relatively extended time response over which the system fluctuates between localized and collective modes. It is of particular interest the echoed excitation of surface lattice resonance modes, which are still present at long times because of the geometric frustration inherent to the triangular lattice. It is worth noting that the excitation of collective modes is also enhanced in other types of arrays where dipolar excitations of the nanoelements are hampered by the symmetry of the array. However, we would like to emphasize that the enhancement in triangular arrays can be significantly larger because of the inherent geometric incompatibility of dipolar excitations and three-fold symmetry axes.
SELF-ENERGY PECULIARITIES OF THE HOT GAUGE THEORY AFTER SYMMETRY BREAKING
Creators: name: Kalashnikov, O. K.
Publisher: name: arXiv
Year: 1995
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: A tensor representation of the gluon propagator is found within covariant gauges for a non-Abelian theory after symmetry breaking due to $\ne 0$ and the exact equations which determine the dispersion laws of plasma excitations are explicitly obtained. In the high temperature region and fixing the Feynman gauge we solved these equations and found the damping of the plasma oscillations and the shifting of their frequency. The phase transition of a gauge symmetry restoration is estimated to be $α_c(T) \approx{4/3}$.
description: 13 pages, LaTex, No figures
An introduction to leading and next-to-leading BFKL
Creators: name: Salam, Gavin P.
Publisher: name: arXiv
Year: 1999
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: Of late, the field of BFKL physics has been the subject of significant developments. The calculation of the NLL terms was recently completed, and they turned out to be very large. Techniques have been proposed to resum these corrections. These lectures provide an introduction to the BFKL equation and some of the recent developments, using DGLAP evolution as the starting point.
description: 27 pages; presented at the Cracow School of Theoretical Physics, XXXIX Course, May 1999
Estimulación cognitiva por ordenador y donepezilo: efectos de la terapia combinada en el deterioro cognitivo
Creators: name: Ruiz Sánchez de León, José M.
Publisher: name: figshare
Year: 2024
Subjects: classificationCode: 520301
subject: Clinical neuropsychology

description: Ruiz Sánchez de León, J. M. y Llanero Luque, M. (2007). Estimulación cognitiva por ordenador y donepezilo: efectos de la terapia combinada en el deterioro cognitivo. Mapfre Medicina, 18(1), 25-33.En la actualidad, la estimulación cognitiva está ocupando un lugar cada vez más importante en el tratamiento, junto al farmacológico, de los casos de deterioro cognitivo. El objetivo del presente trabajo consiste en destacar mediante un caso clínico la importancia de la terapia combinada (cognitiva y farmacológica). Caso clínico. Tratamos a un varón de 61 años con un diagnóstico de demencia de probable origen degenerativo primario, de perfil fronto-subcortical. Presenta de forma florida un cuadro de desinhibición, irritabilidad, ideas delirantes y alucinaciones. Cognitivamente muestra una alteración moderada de la memoria verbal, tanto inmediata como demorada, problemas gnósicos leves y de inhibición de respuestas automáticas. La exploración neurológica es normal. Tras 20 sesiones de 35 minutos de estimulación cognitiva por ordenador y tratamiento con Donepecilo, y aunque persiste la alteración funcional, los síntomas psiquiátricos han desaparecido en su mayoría y la ejecución en las pruebas neuropsicológicas se encuentra dentro de los valores normales para su edad. Por todo ello se sugiere que la terapia combinada a base de estimulación cognitiva y tratamiento farmacológico es beneficiosa, no solo para el rendimiento cognitivo de los pacientes con deterioro cognitivo, sino también para las alteraciones psiquiátricas asociadas.
Sbottoms as probes to MSSM with nonholomorphic soft interactions
Creators: name: Chattopadhyay, Utpal
name: Datta, AseshKrishna
name: Mukherjee, Samadrita
name: Swain, Abhaya Kumar
Publisher: name: arXiv
Year: 2018
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: Presence of nonholomorphic soft SUSY breaking terms is known to be a possibility in the popular setup of the Minimal Supersymmetric Standard Model (MSSM). It has been shown that such a scenario known as NonHolomorphic Supersymmetric Standard Model (NHSSM) could remain `natural' ( i.e., not fine-tuned) even in the presence of a rather heavy higgsino-like LSP. However, it turns out that distinguishing such a scenario from the MSSM is unlikely to be an easy task, in particular at the Large Hadron Collider (LHC). In a first study of such a scenario at colliders (LHC), we explore a possible way that focuses on the sbottom phenomenology. This exploits the usual $\tanβ$-dependence (enhancement) of the bottom Yukawa coupling but reinforced/altered in the presence of non-vanishing nonholomorphic soft trilinear parameter $A_b^{\prime}$. For a given set of masses of the sbottom(s) and the light electroweakinos (LSP, lighter chargino etc.) which are known from experiments, the difference between the two scenarios could manifest itself via event rate in the 2b-jets + ${\, \not \! \! E_T}$ final state, which could be characteristically different from its MSSM expectation. Impact on the phenomenology of the stops at the LHC is also touched upon.
description: 32 pages, 17 figures, 1 table, no changes in texts/figures, three references added, version published in JHEP
Additional file 1 of Comparison of metabolic and functional parameters using cardiac 18F-FDG-PET in early to mid-adulthood male and female mice
Creators: name: Fischer, Maximilian
name: Zacherl, Mathias J.
name: Weinberger, Tobias
name: Weckbach, Ludwig
name: Huber, Bruno
name: Schulz, Christian
name: Massberg, Steffen
name: Bartenstein, Peter
name: Lehner, Sebastian
name: Todica, Andrei
Publisher: name: figshare
Year: 2021
Subjects: subject: Medicine
subject: Cell Biology
subject: Physiology
subject: FOS: Biological sciences
subject: Developmental Biology
subject: Cancer
subject: Mental Health
subject: Computational Biology

description: Additional file 1.. Figure S1: (a) Viability defect in male and female mice at different weeks of age. (b) is showing the change in weight during the follow-up. (c) Correlation of mice body weight and LVMV. (d) Correlation of heart rate per minute and body weight in male and female mice. All groups n = 7-8 at different time points and cumulative group size in correlations n = 45. All data represent mean ± SD. * p < 0.05, ** p < 0.01, *** p < 0.001.
Tree–herb co-existence and community assembly in natural forest-steppe transitions
Creators: name: Tölgyesi, Csaba
name: Valkó, Orsolya
name: Deák, Balázs
name: Kelemen, András
name: Bragina, Tatyana M.
name: Gallé, Róbert
name: Erdős, László
name: Bátori, Zoltán
Publisher: name: Taylor & Francis
Year: 2018
Subjects: subject: Ecology
subject: FOS: Biological sciences
subject: Plant Biology

description: Background: The effects of trees on understorey communities is a major driver of vegetation composition. However, we have little understanding on how isolated forest patches of the forest-steppe transition affect their herb layer as compared to adjacent grasslands. Aims: Our aim was to test whether trees had a protective effect on understorey herbaceous communities in the most arid regions of the forest-steppe transition, where the stress gradient hypothesis predicts positive net effects. Methods: We surveyed herbaceous cover and species composition in 135 forest-steppe sites and recorded soil moisture, microclimate and canopy cover in northern Kazakhstan. Results: Total cover and species richness were lower in the herb layer of groves than in the steppe stands and the soil of the groves was not moister than that of the steppes. Groves were dominated by grassland specialist plants, while forest specialist species remained scarce. However, these grassland species were different from the ones inhabiting the steppes, leading to little nestedness between groves and steppes. Conclusions: Although the presence of groves greatly increase the landscape level diversity of Middle-Asian forest-steppes, trees in the southern edge of the zone seem to have net negative effect on the understorey vegetation, seemingly contradicting the stress gradient hypothesis.
Generalized ladder operators for the perturbed harmonic oscillator
Creators: name: Bosso, Pasquale
name: Das, Saurya
Publisher: name: arXiv
Year: 2018
Subjects: subject: Quantum Physics (quant-ph)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: In this paper, we construct corrections to the raising and lowering (i.e. ladder) operators for a quantum harmonic oscillator subjected to a polynomial type perturbation of any degree and to any order in perturbation theory. We apply our formalism to a couple of examples, namely q and p 4 perturbations, and obtain the explicit form of those operators. We also compute the expectation values of position and momentum for the above perturbations. This construction is essential for defining coherent and squeezed states for the perturbed oscillator. Furthermore, this is the first time that corrections to ladder operators for a harmonic oscillator with a generic perturbation and to an arbitrary order of perturbation theory have been constructed.
description: 11 pages
A search for millimetric emission from Gamma Ray Bursts
Creators: name: Ali, S.
name: Schaefer, R. K.
name: Limon, M.
name: Piccirillo, L.
Publisher: name: arXiv
Year: 1997
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We have used the 2- year Differential Microwave Radiometer data from the COsmic Background Explorer (COBE) satellite to systematically search for millimetric (31 - 90 GHz) emission from the Gamma Ray Bursts (GRBs) in the Burst And Transient Source Experiment (BATSE) GRB 3B catalog. The large beamsize of the COBE instrument (7 degs FWHM) allows for an efficient search of the large GRB positional error boxes, although it also means that fluxes from (point source) GRB objects will be somewhat diluted. A likelihood analysis has been used to look for a change in the level of millimetric emission from the locations of 81 GRB events during the first two years (1990 & 1991) of the COBE mission. The likelihood analysis determined that we did not find any significant millimetric signal before or after the occurance of the GRB. We find 95% confidence level upper limits of 175, 192 and 645 Jy or, in terms of fluxes, of 9.6, 16.3 and 54.8 10^{-13} erg/cm^2/s, respectively at 31, 53 and 90 GHz. We also look separately at different classes of GRBs, including a study of the top ten (in peak flux) GRBs, the "short burst" and "long burst" subsets, finding similar upper limits. While these limits may be somewhat higher than one would like, we estimate that using this technique with future planned missions could push these limits down to \sim 1 mJy.
description: 21 pages, 5 figures, to be published in The Astrophysical Journal
Correlation between two non-linear events in a complex dusty plasma system
Creators: name: Mishra, Rinku
name: Adhikari, S.
name: Mukherjee, Rupak
name: Dey, M.
Publisher: name: arXiv
Year: 2018
Subjects: subject: Plasma Physics (physics.plasm-ph)
subject: FOS: Physical sciences
subject: 76Pxx, 76Xxx

description: A phenomenological model using fluid theory is developed to show that the decay of two seemingly independent nonlinear structures namely the dust void and dust soliton strongly depends on the plasma ionization parameter in an unmagnetized complex plasma system. Numerical solution of model equations has shown that the evolution of dust voids and their subsequent decay in a time frame is intimately related with the ionization parameter. A similar result also holds good in case of dust solitons where stability of soliton is found to depend critically upon ionization parameter. Most importantly, it is observed that time of the collapse of a dust soliton precedes the onset time of a dust void decay and therefore soliton decay acts as a precursor for void decay to occur in a given dusty plasma system.
description: 17 pages, 12 figures
Influence of Perfluorinated Ionomer in PEDOT:PSS on the Rectification and Degradation of Organic Photovoltaic Cells
Creators: name: Howells, Calvyn T.
name: Saylan, Sueda
name: Kim, Haeri
name: Marbou, Khalid
name: Aoyama, Tetsua
name: Nakao, Aiko
name: Uchiyama, Masanobu
name: Samuel, Ifor D. W.
name: Kim, Dong-Wook
name: Dahlem, Marcus S.
name: André, Pascal
Publisher: name: arXiv
Year: 2018
Subjects: subject: Applied Physics (physics.app-ph)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Poly(3,4-ethylenedioxythiophene):poly(styrenesulfonate) (PEDOT:PSS) is widely used to build optoelectronic devices. However, as a hygroscopic water-based acidic material, it brings major concerns for stability and degradation, resulting in an intense effort to replace it in organic photovoltaic (OPV) devices. In this work, we focus on the perfluorinated ionomer (PFI) polymeric additive to PEDOT:PSS. We demonstrate that it can reduce the relative amplitude of OPV device burn-in, and find two distinct regimes of influence. At low concentrations there is a subtle effect on wetting and work function, for instance, with a detrimental impact on the device characteristics, and above a threshold it changes the electronic and device properties. The abrupt threshold in the conducting polymer occurs for PFI concentrations greater than or equal to the PSS concentration and was revealed by monitoring variations in transmission, topography, work-function, wettability and OPV device characteristics. Below this PFI concentration threshold, the power conversion efficiency (PCE) of OPVs based on poly(3-hexylthiophene-2,5-diyl):[6,6]-phenyl-C61-butyric acid methyl ester (P3HT:PCBM) are impaired largely by low fill-factors due to poor charge extraction. Above the PFI concentration threshold, we recover the PCE before it is improved beyond the pristine PEDOT:PSS layer based OPV devices. Supplementary to the performance enhancement, PFI improves OPV device stability and lifetime. Our degradation study leads to the conclusion that PFI prevents water from diffusing to and from the hygrosopic PEDOT:PSS layer, which slows down the deterioration of the PEDOT:PSS layer and the aluminum electrode. These findings reveal mechanisms and opportunities that should be taken into consideration when developing components to inhibit OPV degradation.
description: 14 pages, 9 figures, 1 table, Journal of Materials Chemistry A 2018
On fixed point theory in partially ordered sets and an application to asymptotic complexity of algorithms
Creators: name: Estevan, Asier
name: Minãna, Juan-José
name: Valero, Oscar
Publisher: name: arXiv
Year: 2024
Subjects: subject: Information Theory (cs.IT)
subject: FOS: Computer and information sciences

description: The celebrated Kleene fixed point theorem is crucial in the mathematical modelling of recursive specifications in Denotational Semantics. In this paper we discuss whether the hypothesis of the aforementioned result can be weakened. An affirmative answer to the aforesaid inquiry is provided so that a characterization of those properties that a self-mapping must satisfy in order to guarantee that its set of fixed points is non-empty when no notion of completeness are assumed to be satisfied by the partially ordered set. Moreover, the case in which the partially ordered set is coming from a quasi-metric space is treated in depth. Finally, an application of the exposed theory is obtained. Concretely, a mathematical method to discuss the asymptotic complexity of those algorithms whose running time of computing fulfills a recurrence equation is presented. Moreover, the aforesaid method retrieves the fixed point based methods that appear in the literature for asymptotic complexity analysis of algorithms. However, our new method improves the aforesaid methods because it imposes fewer requirements than those that have been assumed in the literature and, in addition, it allows to state simultaneously upper and lower asymptotic bounds for the running time computing.
Positivity constraints and flavor dependence of higher twists
Creators: name: Soffer, J.
name: Teryaev, O. V.
Publisher: name: arXiv
Year: 2000
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: The positivity bound for the transverse asymmetry $A_2$ may be improved and applied for each quark flavor separately. We use it to test the consistency of twist-two approximation for the transverse spin-dependent ($g_T$) and the longitudinal spin-averaged ($F_L$) structure functions. While it is satisfied in the case of $u$ quarks, it might be violated for $d$ quarks in a region of moderate $x$ because of its negative polarization. We attribute this inconsistency to a stronger twist-three contribution, whose existence found by the QCD sum rule method is a long-standing puzzle.
description: 11 pages, 2 figures
Skyrmions around Kerr black holes and spinning BHs with Skyrme hair
Creators: name: Herdeiro, C.
name: Perapechka, I.
name: Radu, E.
name: Shnir, Ya.
Publisher: name: arXiv
Year: 2018
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We study solutions of the Einstein-Skyrme model. Firstly we consider test field Skyrmions on the Kerr background. These configurations -- hereafter dubbed Skerrmions -- can be in equilibrium with a Kerr black hole (BH) by virtue of a synchronisation condition. We consider two sectors for Skerrmions. In the sector with non-zero baryon charge, Skerrmions are akin to the known Skyrme solutions on the Schwarzschild background. These `topological' configurations reduce to flat spacetime Skyrmions in a vanishing BH mass limit; moreoever, they never become "small" perturbations on the Kerr background: the non-linearities of the Skyrme model are crucial for all such Skerrmions. In the non-topological sector, on the other hand, Skerrmions have no analogue on the Schwarzschild background. Non-topological Skerrmions carry not baryon charge and bifurcate from a subset of Kerr solutions defining an existence line. Therein the appropriate truncation of the Skyrme model yield a linear scalar field theory containing a complex plus a real field, both massive and decoupled, and the Skerrmions reduce to the known stationary scalar clouds around Kerr BHs. Moreover, non-topological Skerrmions trivialise in the vanishing BH mass limit. We then discuss the backreaction of these Skerrmions, that yield rotating BHs with synchronised Skyrme hair, which continously connect to the Kerr solution (self-gravitating Skyrmions) in the non-topological (topological) sector. In particular, the non-topological hairy BHs provide a non-linear realisation, within the Skyrme model, of the synchronous stationary scalar clouds around Kerr.
description: 23 pages, 7 figures; to appear in JHEP
High-speed Implementation of Length-compatible Privacy Amplification in Continuous-variable Quantum Key Distribution
Creators: name: Wang, Xiangyu
name: Zhang, Yi-Chen
name: Yu, Song
name: Guo, Hong
Publisher: name: arXiv
Year: 2018
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Privacy amplification is an indispensable step in postprocessing of continuous-variable quantum key distribution (CV-QKD), which is used to distill unconditional secure keys from identical corrected keys between two distant legal parties. The processing speed of privacy amplification has a significant effect on the secret key rate of CV-QKD system. We report the high-speed parallel implementation of length-compatible privacy amplification algorithm based on graphic processing unit. Length-compatible algorithm is used to satisfy the security requirement of privacy amplification at different transmission distances when considering finite-size effect. We achieve the speed of privacy amplification over 1 Gbps at arbitrary input length and the speed is one to two orders of magnitude faster than previous demonstrations, which supports high-speed real-time CV-QKD system and ensures the security of privacy amplification.
description: 10 pages, 3 figures
lions.pdf from Correction to ‘Lönnstedt OM, Ferrari MCO, Chivers DP. 2014 Lionfish predators use flared fin displays to initiate cooperative hunting’
Creators: name: Chivers, Douglas P.
name: Ferrari, Maud C. O.
Publisher: name: The Royal Society
Year: 2018
Subjects: subject: Ecology
subject: FOS: Biological sciences
subject: 60114 Systems Biology
subject: 60801 Animal Behaviour

description: lions.pdf
Gauge Unification within the Dual Standard Model
Creators: name: Lepora, Nathan F.
Publisher: name: arXiv
Year: 1999
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We calculate the gauge couplings in the dual standard model. These values are consistent with an associated GeV mass scale, and predict the weak mixing angle to be ${\sin^2 θ_w} (M_Z) \sim 0.22$.
description: 4 pages, LaTeX. 1 figure. typos and additional clarification