cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Entanglement Spectrum Crossings Reveal non-Hermitian Dynamical Topology
Creators: name: Sayyad, Sharareh
name: Yu, Jinlong
name: Grushin, Adolfo G.
name: Sieberer, Lukas M.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: The development of non-Hermitian topological band theory has led to observations of novel topological phenomena in effectively classical, driven and dissipative systems. However, for open quantum many-body systems, the absence of a ground state presents a challenge to define robust signatures of non-Hermitian topology. We show that such a signature is provided by crossings in the time evolution of the entanglement spectrum. These crossings occur in quenches from the trivial to the topological phase of a driven-dissipative Kitaev chain that is described by a Markovian quantum master equation in Lindblad form. At the topological transition, which can be crossed either by changing parameters of the Hamiltonian of the system or by increasing the strength of dissipation, the time scale at which the first entanglement spectrum crossing occurs diverges with a dynamical critical exponent of $ε= 1/2$. We corroborate these numerical findings with an exact analytical solution of the quench dynamics for a spectrally flat postquench Liouvillian. This exact solution suggests an interpretation of the topological quench dynamics as a fermion parity pump. Our work thus reveals signatures of non-Hermitian topology which are unique to quantum many-body systems and cannot be emulated in classical simulators of non-Hermitian wave physics.
description: 28 pages, 14 figures
Transcription of a story about Verdena's cat
Creators: name: Parker, Verdena
name: Escamilla, Ramón
Publisher: name: California Language Archive, University of California, Berkeley
Year: 2022
Subjects: subject: hup

description: Audio file VP-160811-16: Transcription of a story about Verdena's cat (file VP-230711-01), from 7:10 to 9:35.
Reinforcement Alternatives for Concrete Bridge Decks
Creators: name: Hill, Chris
name: Chiaw, Choo Ching
name: Harik, Issam E.
Publisher: name: Kentucky Transportation Center, University of Kentucky
Year: 2003
Subjects: subject: Transportation Engineering

description: This report investigates the application of various reinforcement types in concrete bridge decks as potential replacements or supplements to conventional steel reinforcement. Traditional epoxy coated reinforcement (ECS), stainless steel clad (SSC) reinforcement, MMFX microcomposite reinforcement, and carbon fiber reinforced polymer (CFRP) reinforcement were evaluated. Tests were conducted to determine the material properties of each reinforcement type. Full-scale two-span reinforced concrete deck specimens were load tested to evaluate their performance. CFRP reinforcement was deployed in a single-span bridge located on Elkin Station Road in Clark County, KY. The SSC and MMFX reinforcements were each placed in a separate span in a two-span bridge located on Galloway Road in Scott County, KY. Results of the laboratory investigation showed that bridge decks reinforced with ECS, SSC, MMFX, and CFRP reinforcements satisfy the AASHTO Specification strength requirements.
CP Violation in Hadronic tau Decays
Creators: name: Datta, Alakabha
name: Kiers, Ken
name: London, David
name: O'Donnell, Patrick J.
name: Szynkman, Alejandro
Publisher: name: arXiv
Year: 2006
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We re-examine CP violation in the Delta S = 0 decays tau -> N pi nu_tau (N=2,3,4). We assume that the new physics (NP) is a charged Higgs. We show that there is no NP contribution to tau -> pi pi nu_tau, which means that no CP violation is expected in this decay. On the other hand, NP can contribute to tau -> N pi nu_tau (N=3,4). These are dominated by the intermediate resonant decays tau -> omega pi nu_tau, tau -> rho pi nu_tau and tau -> a_1 pi nu_tau. We show that the only sizeable CP-violating effects which are possible are in tau -> a_1 pi nu_tau -> 4 pi nu_tau (polarization-dependent rate asymmetry) and tau -> omega pi nu_tau (triple-product asymmetry).
description: 21 pages, 2 figures (enclosed). Numerical analysis added; references renumbered; figure changed. Analysis and conclusions unchanged
Transcription of a story about a UFO crash near Xowung-q'it
Creators: name: Parker, Verdena
name: Newbold, Lindsey
Publisher: name: California Language Archive, University of California, Berkeley
Year: 2022
Subjects: subject: hup

description: Audio files VP-160811-15a/c: Transcription of a story about a UFO that crashed across the river from Xowung-q'it (file VP-230711-07), from 1:40 to the end of the Hupa portion at 4:01.
Crash Rates At Intersections
Creators: name: Green, Eric R.
name: Agent, Kenneth R.
Publisher: name: Kentucky Transportation Center, University of Kentucky
Year: 2003
Subjects: subject: Transportation Engineering

description: The objectives of this study were to develop a database of intersections, match traffic crashes to these intersections, calculate crash rates for various types of intersections, and identify intersections with the highest crash rates. A procedure was used to: a) identify intersections, b) assign crashes to these intersections, c) determine entering traffic volume, d) calculate a crash rate for each intersection, and e) calculate a critical rate factor (CRF) for each intersection.  About 7,000 intersections were identified with almost 19,000 crashes related to these intersections for the three-year period of 2000 through 2002. The analysis identified 428 intersections that had a CRF of one or more while only 36 intersections had a CRF above two. As would be expected, the crash rates are higher in urban than in rural areas. In both rural and urban areas, the rate was highest for four-lane undivided highways and lowest for four-lane divided highways.  An Excel spreadsheet containing a list of all intersections of two or more state-maintained roadways was developed. The spreadsheet also contains crash and volume data for each intersection. The intersections with the highest critical rate factors can be identified. This list can be divided by highway district with the objective of investigating the intersections with the highest CRFs and determining if improvements should be implemented.
ARRANGEMENT OF INFORMATION SIGNS ON THE STREETS OF THE HISTORICAL CITY. (IN THE EXAMPLE OF THE CITY OF SAMARKAND)
Creators: name: Matniyazov, Zafarbek
name: Elmurodov, Samidullo
name: Tajibaev, Jurat
Publisher: name: Zenodo
Year: 2023

description: In the article, an opinion is given about the projects studied and expected to be implemented on the subject of design code. At present, much attention is being paid to tourism, and the original appearance of buildings in urban areas is being lost, and advertising and information are taking over, and meaningless information is taking the place of historicity.
Are complex systems hard to evolve?
Creators: name: Adamatzky, Andy
name: Bull, Larry
Publisher: name: arXiv
Year: 2008
Subjects: subject: Neural and Evolutionary Computing (cs.NE)
subject: FOS: Computer and information sciences

description: Evolutionary complexity is here measured by the number of trials/evaluations needed for evolving a logical gate in a non-linear medium. Behavioural complexity of the gates evolved is characterised in terms of cellular automata behaviour. We speculate that hierarchies of behavioural and evolutionary complexities are isomorphic up to some degree, subject to substrate specificity of evolution and the spectrum of evolution parameters.
An X-ray spectral study of the origin of reflection features in bare Seyfert 1 galaxy ESO 511--G030
Creators: name: Ghosh, Ritesh
name: Laha, Sibasish
Publisher: name: arXiv
Year: 2020
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: The reprocessed X-ray emission from Active Galactic Nuclei (AGN) is an important diagnostic tool to study the dynamics and geometry of the matter surrounding the supermassive black holes (SMBHs). We present a broadband (optical-UV to hard X-ray) spectral study of the bare Seyfert 1 galaxy, ESO~511--G030, using multi-epoch Suzaku and XMM-Newton data from 2012 and 2007 respectively. The broadband spectra of ESO~511--G030 exhibit a UV bump, a prominent soft-excess below 2 keV, a relatively broad ($σ=0.08 - 0.14$ keV) Fe emission line at 6.4 keV and a weak Compton hump at E > 10 keV. The soft X-ray excess in ESO~511--G030 can be described either as the thermal Comptonization of disk seed photons by a warm ($0.40^{+0.02}_{-0.02}$ keV), optically thick ($τ= 12.7^{+0.5}_{-0.4}$) and compact ($< 15 \rm r_{g}$) corona or as the blurred reflection from an untruncated and moderate to highly ionized accretion disk. However, for the blurred reflection, the model requires some extreme configuration of the disk and corona. Both these models prefer a rapidly spinning black hole ($a>0.78$) and a compact corona, indicating a relativistic origin of the broad Fe emission line. We found an inner disk temperature of $\sim 2-3$ eV that characterises the UV bump and the SMBH accretes at a sub-Eddington rate ($λ_{Edd} = 0.004-0.008$).
description: 14 pages, 3 figures, accepted in ApJ
Dimension 2 condensates and Polyakov Chiral Quark Models
Creators: name: Megias, E.
name: Arriola, E. Ruiz
name: Salcedo, L. L.
Publisher: name: arXiv
Year: 2006
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We address a possible relation between the expectation value of the Polyakov loop in pure gluodynamics and full QCD based on Polyakov Chiral Quark Models where constituent quarks and the Polyakov loop are coupled in a minimal way. To this end we use a center symmetry breaking Gaussian model for the Polyakov loop distribution which accurately reproduces gluodynamics data above the phase transition in terms of dimension 2 gluon condensate. The role played by the quantum and local nature of the Polyakov loop is emphasized.
description: 3 pages, 1 figure. Talk given at the IVth International Conference on Quarks an Nuclear Physics, Madrid, June 5th-10th 2006
Contrasting Mechanisms for Photodissociation of Methyl Halides Adsorbed on Thin Films of C$_6$H$_6$ and C$_6$F$_6$
Creators: name: Jensen, E. T.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Chemical Physics (physics.chem-ph)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: The mechanisms for photodissociation of methyl halides (CH$_3$X, X= Cl, Br, I) have been studied for these molecules when adsorbed on thin films of C$_6$H$_6$ or C$_6$F$_6$ on copper single crystals, using time-of-flight spectroscopy with 248nm and 193nm light. For CH$_3$Cl and CH$_3$Br monolayers adsorbed on C$_6$H$_6$, two photodissociation pathways can be identified: neutral photodissociation similar to the gas-phase, and a dissociative electron attachment (DEA) pathway due to photoelectrons from the metal. The same methyl halides adsorbed on a C$_6$F$_6$ thin film display only neutral photodissociation, with the DEA pathway entirely absent due to intermolecular quenching via a LUMO-derived electronic band in the C$_6$F$_6$ thin film. For CH$_3$I adsorbed on a C$_6$F$_6$ thin film, illumination with 248nm light results in CH$_3$ photofragments departing due to neutral photodissociation via the A-band absorption. When CH$_3$I monolayers on C$_6$H$_6$ thin films are illuminated at the same wavelength, additional new photodissociation pathways are observed that are due to absorption in the molecular film with energy transfer leading to dissociation of the CH$_3$I molecules adsorbed on top. The proposed mechanism for this photodissociation is via a charge-transfer complex for the C$_6$H$_6$ layer and adsorbed CH$_3$I.
description: 13 pages, 9 figures. Accepted for publication in Physical Chemistry Chemical Physics
Power Fluctuations of An Irreversible Quantum Otto Engine
Creators: name: Jiao, Guangqian
name: Zhu, Shoubao
name: He, Jizhou
name: Ma, Yongli
name: Wang, Jianhui
Publisher: name: arXiv
Year: 2020
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: We derive the general probability distribution function of stochastic work for quantum Otto engines in which both the isochoric and driving processes are irreversible due to finite time duration. The time-dependent power fluctuations, average power, and thermodynamic efficiency are explicitly obtained for a complete cycle operating with an analytically solvable two-level system. We show that, there is a trade-off between efficiency (or power) and power fluctuations.
Chen-Jiang decompositions for projective varieties, without Hodge modules
Creators: name: Villadsen, Mads Bach
Publisher: name: arXiv
Year: 2020
Subjects: subject: Algebraic Geometry (math.AG)
subject: FOS: Mathematics

description: We give a new proof of a theorem by Pareschi, Popa and Schnell that the direct image of the canonical bundle of a smooth projective variety along a morphism to an abelian variety admits a Chen-Jiang decomposition, without using the theory of Hodge modules.
description: 18 pages
CINECA Cohort Level metadata Representation D3.1
Creators: name: Jin, Vivian
name: Brinkman, Fiona
Publisher: name: Zenodo
Year: 2020
Subjects: data discover, minimal metadata, metadata, Ontology , omics data, genomic, data dictionaries

description: To support human cohort genomic and other “omic” data discovery and analysis across jurisdictions, basic data such as cohort participant age, sex, etc needs to be harmonised. Developing a key “minimal metadata model” of these basic attributes which should be recorded with all cohorts is critical to aid initial querying across jurisdictions for suitable dataset discovery. We describe here the creation of a minimal metadata model, the specific methods used to create the minimal metadata model, and this model’s utility and impact.  A first version of the metadata model was built based on a review of Maelstrom research data standards and a manual survey of cohort data dictionaries, which identified and incorporated overlapping core variables across CINECA cohorts. The model was then converted to Genomics Cohorts Knowledge Ontology (GECKO) format and further expanded with additional terms. The minimal metadata model is being made broadly available to aid any project or projects, including those outside of CINECA interested in facilitating cross-jurisdictional data discovery and analysis.
Quark anti-quark expectation value in finite volume
Creators: name: Bijnens, Johan
name: Ghorbani, Karim
Publisher: name: arXiv
Year: 2006
Subjects: subject: High Energy Physics - Lattice (hep-lat)
subject: FOS: Physical sciences

description: We have computed the quark anti-quark expectation value in finite volume at two loop in chiral perturbation theory and compare it with a formula obtained in analogy to the Luscher formula for pion mass in finite volume. We observe that due to the small finite size correction at two loop it is not possible to obtain conclusions on the accuracy of the extended Luscher formula.
description: 4 pages, talk presented at IPM-LHP06, Tehran, Iran; PSN: IPM-LHP06-19May
Transcription of a story about Verdena's cat
Creators: name: Parker, Verdena
name: Escamilla, Ramón
name: Newbold, Lindsey
Publisher: name: California Language Archive, University of California, Berkeley
Year: 2022
Subjects: subject: hup

description: Audio files VP-160811-13 and VP-160811-14: transcription of a story about Verdena's cat (file VP-230711-01), from the beginning of the story to 5:30 (VP-160811-13) and from 5:30 to 7:10 (VP-160811-14)
LSTM-based Traffic Load Balancing and Resource Allocation for an Edge System
Creators: name: Dlamini, Thembelihle
name: Vilakati, Sifiso
Publisher: name: arXiv
Year: 2020
Subjects: subject: Networking and Internet Architecture (cs.NI)
subject: Systems and Control (eess.SY)
subject: FOS: Computer and information sciences
subject: FOS: Electrical engineering, electronic engineering, information engineering

description: The massive deployment of small cell Base Stations (SBSs) empowered with computing capabilities presents one of the most ingenious solutions adopted for 5G cellular networks towards meeting the foreseen data explosion and the ultra-low latency demanded by mobile applications. This empowerment of SBSs with Multi-access Edge Computing (MEC) has emerged as a tentative solution to overcome the latency demands and bandwidth consumption required by mobile applications at the network edge. The MEC paradigm offers a limited amount of resources to support computation, thus mandating the use of intelligence mechanisms for resource allocation. The use of green energy for powering the network apparatuses (e.g., Base Stations (BSs), MEC servers) has attracted attention towards minimizing the carbon footprint and network operational costs. However, due to their high intermittency and unpredictability, the adoption of learning methods is a requisite. Towards intelligent edge system management, this paper proposes a Green-based Edge Network Management (GENM) algorithm, which is a online edge system management algorithm for enabling green-based load balancing in BSs and energy savings within the MEC server. The main goal is to minimize the overall energy consumption and guarantee the Quality of Service (QoS) within the network. To achieve this, the GENM algorithm performs dynamic management of BSs, autoscaling and reconfiguration of the computing resources, and on/off switching of the fast tunable laser drivers coupled with location-aware traffic scheduling in the MEC server. The obtained simulation results validate our analysis and demonstrate the superior performance of GENM compared to a benchmark algorithm.
description: 8 Figures, 13 pages
Rigorous Derivation of the Gross-Pitaevskii Equation with a Large Interaction Potential
Creators: name: Erdos, Laszlo
name: Schlein, Benjamin
name: Yau, Horng-Tzer
Publisher: name: arXiv
Year: 2008
Subjects: subject: Mathematical Physics (math-ph)
subject: Analysis of PDEs (math.AP)
subject: FOS: Physical sciences
subject: FOS: Mathematics
subject: 35Q55; 81Q15; 81T18; 81V70

description: Consider a system of $N$ bosons in three dimensions interacting via a repulsive short range pair potential $N^2V(N(x_i-x_j))$, where $\bx=(x_1, >..., x_N)$ denotes the positions of the particles. Let $H_N$ denote the Hamiltonian of the system and let $ψ_{N,t}$ be the solution to the Schrödinger equation. Suppose that the initial data $ψ_{N,0}$ satisfies the energy condition \[ < ψ_{N,0}, H_N ψ_{N,0} > \leq C N >. \] and that the one-particle density matrix converges to a projection as $N \to \infty$. Then, we prove that the $k$-particle density matrices of $ψ_{N,t}$ factorize in the limit $N \to \infty$. Moreover, the one particle orbital wave function solves the time-dependent Gross-Pitaevskii equation, a cubic non-linear Schrödinger equation with the coupling constant proportional to the scattering length of the potential $V$. In \cite{ESY}, we proved the same statement under the condition that the interaction potential $V$ is sufficiently small; in the present work we develop a new approach that requires no restriction on the size of the potential.
description: LateX file; 53 pages. Final version
Erklärung der Bonner Arbeitsgemeinschaft christlicher Kirchen (ACK) zum Verhältnis Christen und Juden
Publisher: name: Ökumenische Rundschau
Year: 2025

description: Ökumenische Rundschau, Bd. 58 Nr. 1 (2009): Ökumenische Rundschau, Band 58, Heft 1
Dynamical Instabilities in a two-component Bose condensate in a 1d optical lattice
Creators: name: Hooley, Samantha
name: Benedict, Keith A
Publisher: name: arXiv
Year: 2006
Subjects: subject: Other Condensed Matter (cond-mat.other)
subject: FOS: Physical sciences

description: In this paper we carry out a stability analysis of the Bloch states of a two-component Bose-Einstein condensate confined to a 1d optical lattice. We consider two concrete systems: a mixture of two hyperfine states of Rubidium-87 and a mixture of Sodium-23 and Rubidium-87. The former is seen to exhibit similar phenomena to a single component condensate while the latter also suffers an instability to phase separation at small Bloch wave vectors. It is shown that sufficiently deep optical lattices can remove this latter instability, potentially allowing imiscible cold atoms species to be held in intimate contact and transported within an experimental system.
description: 14 Pages, 9 figures
Energetic spin-polarized proton beams from two-stage coherent acceleration in laser-driven plasma
Creators: name: Gong, Zheng
name: Shou, Yinren
name: Tang, Yuhui
name: Yan, Xueqing
Publisher: name: arXiv
Year: 2020
Subjects: subject: Plasma Physics (physics.plasm-ph)
subject: Accelerator Physics (physics.acc-ph)
subject: Applied Physics (physics.app-ph)
subject: FOS: Physical sciences

description: We propose a scheme to overcome the great challenge of polarization loss in spin-polarized ion acceleration. When a petawatt laser pulse penetrates through a compound plasma target consisting of a double layer slab and prepolarized hydrogen halide gas, a strong forward moving quasistatic longitudinal electric field is constructed by the self-generated laser-driven plasma. This field with a varying drift velocity efficiently boosts the prepolarized protons via a two-stage coherent acceleration process. Its merit is not only achieving a highly energetic beam but also eliminating the undesired polarization loss of the accelerated protons. We study the proton dynamics via Hamiltonian analyses, specifically deriving the threshold of triggering the two-stage coherent acceleration. To confirm the theoretical predictions, we perform three-dimensional PIC simulations, where unprecedented proton beams with energy approximating half GeV and polarization ratio $\sim$ 94\% are obtained.
Environmental Impacts of Bridge Cleaning Operations
Creators: name: Hopwood, Theodore
name: Palle, Sudhir
name: Younce, Rick
Publisher: name: Kentucky Transportation Center, University of Kentucky
Year: 2003
Subjects: subject: Transportation Engineering

description: Cleaning (washing) operations of existing leaded paints on bridges were studied to determine the level of lead contamination in the resulting wastewater. Twelve experimental overcoating projects were let on bridges with various types of existing paint in varying states of deterioration. The projects employed different washing pressures ranging from 2500 psi to 10000 psi and various wash nozzles (fan and 0o spinner tips). KYTC standard filtration was used on 10 projects and 2 projects used an experimental filtration unit having a sand filter and two types of chemical filter media.  Prior to painting, the existing paint was analyzed for thickness, adhesion, and lead content. Wastewater generated during maintenance painting operations (potable, unfiltered and filtered) was sampled and analyzed for lead content (total and dissolved), total suspended solids and pH. No clear correlations were obtained between lead in the wastewater, wash pressures, nozzle type, or any of the existing paint parameters tested. The sand filter and chemical filter media of the experimental filtration unit provided significant removal of lead from wastewater.
Transcriptional regulatory elements in the long terminal repeats of the human endrogenous retrovirus, HERV-H
Creators: name: Nelson, David Troy
Publisher: name: University of British Columbia
Year: 2009

description: HERV-H sequences comprise a large family of human endogenous retroviruslike elements. Previous DNA sequence comparisons of HERV-H long terminal repeats (LTRs) have led to their classification into three subtypes, Type I, la and II. Type la appears to have been generated by recombination between Type I and II LTRs. These subtypes differ in evolutionary age and transcriptional activity with Type la LTRs being younger in evolutionary terms and possessing stronger promoter function than the other two subtypes. In this study, possible mechanics responsible for the functional difference between LTRs have been explored. Type I and II LTRs each contain different sets of repeated segments in their U3 regions which are disrupted in Type la LTRs. Using reporter gene assays, both types of repeated segments were shown to suppress activity of the human R-globin gene promoter when cloned at a distant site. Both sets of repeats also repress promoter activity of a Type la LTR when directly inserted within its U3 region. In further support of these findings, removal of the strongly supressing Type II repeat set from a Type II LTR increased promoter activity in one test cell line. However, this result was not observed in all cell lines or with both LTR types, emphasizing the complexity and cell-type dependence of HERV-H promoter regulation. In addition, using deletion constructs, two positive regulatory segments have been localized within the Type la LTR, both of which contain a potential binding site for the transcription factor Sp1. Gel mobility shift assays demonstrated that fragments containing these sites do bind Sp1. Although Type I LTRs are generally similar to Type la LTRs in the regions surrounding the Sp1 sites, there are sequence differences within the sites. Gel shift analysis revealed no, or much reduced, Sp1 binding of Type I LTR fragments containing these sites. Thus, it appears that the loss of repeated suppresser elements and the acquisition of Sp1 binding sites have both contributed to the relatively strong transcriptional activity of the Type la LTRs.
A Survey of Hydroxyl Toward Supernova Remnants: Evidence for Extended 1720 MHz Maser Emission
Creators: name: Hewitt, J. W.
name: Yusef-Zadeh, F.
name: Wardle, M.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We present the results of GBT observations of all four ground-state hydroxyl (OH) transitions toward 15 supernova remnants (SNRs) which show OH(1720 MHz) maser emission. This species of maser is well established as an excellent tracer of an ongoing interaction between the SNR and dense molecular material. For the majority of these objects we detect significantly higher flux densities with a single dish than has been reported with interferometric observations. We infer that spatially extended, low level maser emission is a common phenomenon that traces the large-scale interaction in maser-emitting SNRs. Additionally we use a collisional pumping model to fit the physical conditions under which OH is excited behind the SNR shock front. We find the observed OH gas associated with the SNR interaction having columns less than approximately 10^17 per square cm, temperatures of 20 to 125 K, and densities 10^5 per cubic cm.
description: 24 pages, 23 figures, Accepted to ApJ, March 26, 2008; v2 - added Figure 6, minor clarifications to text in Sections 3 and 4
Can we constrain the aftermath of binary neutron star mergers with short gamma-ray bursts?
Creators: name: Patricelli, Barbara
name: Bernardini, Maria Grazia
Publisher: name: arXiv
Year: 2020
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: The joint observation of GW170817 and GRB170817A proved that binary neutron star (BNS) mergers are progenitors of short Gamma-ray Bursts (SGRB): this established a direct link between the still unsettled SGRB central engine and the outcome of BNS mergers, whose nature depends on the equation of state (EOS) and on the masses of the NSs. We propose a novel method to probe the central engine of SGRBs based on this link. We produce an extended catalog of BNS mergers by combining recent theoretically predicted BNS merger rate as a function of redshift and the NS mass distribution inferred from measurements of Galactic BNSs. We use this catalog to predict the number of BNS systems ending as magnetars (stable or Supramassive NS) or BHs (formed promptly or after the collapse of a hypermassive NS) for different EOSs, and we compare these outcomes with the observed rate of SGRBs. Despite the uncertainties mainly related to the poor knowledge of the SGRB jet structure, we find that for most EOSs the rate of magnetars produced after BNS mergers is sufficient to power all the SGRBs, while scenarios with only BHs as possible central engine seems to be disfavoured.
description: Accepted for publication in MNRAS Letters
Survey of Welding Processes
Creators: name: Hopwood, Theodore
Publisher: name: Kentucky Transportation Center, University of Kentucky
Year: 2003
Subjects: subject: Transportation Engineering

description: The current KYTC “SPECIAL PROVISION NO. 4 WELDING STEEL BRIDGES” prohibits the use of welding processes other than shielded metal arc welding (SMAW) and submerged arc welding (SAW). Nationally, bridge welding is codified under ANSI/AASHTO/AWS D1.5M/D1.5:2002 Bridge Welding Code. That document allows the use of other welding processes including flux core arc welding, gas metal arc welding, electroslag welding and electrogas welding after passing qualification tests.  Both the KYTC Special Provision and the Bridge Welding Code were reviewed. Representatives from 14 state highway agencies, fabrication shops, universities and welding equipment firms were questioned regarding the wider use of the welding processes allowed by the Bridge Welding Code but prohibited by the KYTC Special Provision. Based upon those responses, recommendations are provided to KYTC for updating the Special Provision and more fully adopting the Bridge Welding Code.
Evaluation and Analysis of Highway Pavement Drainage
Creators: name: Mahboub, Kamyar C.
name: Liu, Yinhui
name: Allen, David L.
Publisher: name: Kentucky Transportation Center, University of Kentucky
Year: 2003
Subjects: subject: Transportation Engineering

description: This report presents an analysis of pavement drainage using various finite element models. The analysis included a range of pavement materials and drainage parameters. The computational tool in study was the SEEP/W option in the GEOSLOPE computer program. A steady-state saturated flow analysis was employed to generate flow paths and flux quantities through the cross-sectional area of the pavement. Finite element models in this study covered various drainage practices and quantified their relative drainage advantages. Finally, recommendations were provided for optimum drainage practices as well as future research topics in this area.
COVID-19: the essential in three stages
Creators: name: Gattinoni, Luciano
Publisher: name: figshare
Year: 2021
Subjects: subject: 110310 Intensive Care
subject: FOS: Clinical medicine
subject: 110305 Emergency Medicine
subject: 110309 Infectious Diseases
subject: FOS: Health sciences

description: When the first cases of COVID-19 infection started to be detected the profound difference between patients in terms of severity of disease quickly became evident. A vast majority of patients remained asymptomatic and eventually healed while some, despite lacking initial symptom, eventually worsen and a few fell ill quite rapidly. While facing a new disease, COVID-19 pneumonia was approached based on medical knowledge translated from the most similar illness but, a year later since the beginning of the outbreak in Northern Italy, knowledge has evolved. This text has the intent to offer a comprehensive view of COVID-19 pneumonia and its treatment options as a continuum of the same but complex disease, from the early to the late phase.
Transcription of a story about a UFO crash near Xowung-q'it
Creators: name: Parker, Verdena
name: Newbold, Lindsey
Publisher: name: California Language Archive, University of California, Berkeley
Year: 2022
Subjects: subject: hup

description: Audio file VP-160811-12: Transcription of a story about a UFO that crashed across the river from Xowung-q'it (file VP-230711-07), from the beginning of the file to 1:40.
title: African nightshade (Solanum scabrum Mill.)
title: impact of cultivation and plant processing on its health promoting potential as determined in a human liver cell model
titleType: Subtitle
Creators: name: Odongo, Grace Akinyi
name: Schlotz, Nina
name: Baldermann, Susanne
name: Neugart, Susanne
name: Huyskens-Keil, Susanne
name: Ngwene, Benard
name: Trierweiler, Bernhard
name: Schreiner, Monika
name: Lamy, Evelyn
Publisher: name: Universität Potsdam
Year: 2021
Subjects: subject: 610 Medizin und Gesundheit

description: Plant cultivation and processing may impact nutrient and phytochemical content of vegetables. The present study aimed at determining the influence of cultivation and processing on the health promoting capacity of African nightshade (Solanum scabrum Mill.) leaves, an indigenous vegetable, rich in nutrients and phytochemicals. Anti-genotoxicity against the human liver carcinogen aflatoxin B1 (AFB1) as determined by the comet assay and radical oxygen species (ROS) scavenging capacity of ethanolic and aqueous extracts were investigated in human derived liver (HepG2) cells. ROS scavenging activity was assessed using electron paramagnetic spin resonance and quantification of ARE/Nrf2 mediated gene expression. The cultivation was done under different environmental conditions. The processing included fermentation and cooking; postharvest ultraviolet irradiation (UV-C) treatment was also investigated. Overall, S. scabrum extracts showed strong health promoting potential, the highest potential was observed with the fermented extract, which showed a 60% reduction of AFB1 induced DNA damage and a 38% reduction in FeSO4 induced oxidative stress. The content of total polyphenols, carotenoids and chlorophylls was indeed affected by cultivation and processing. Based on the present in vitro findings consumption of S. scabrum leaves could be further encouraged, preferentially after cooking or fermentation of the plant.
description: Postprints der Universität Potsdam : Mathematisch-Naturwissenschaftliche Reihe; 1133
Electrified Higher-Dimensional Brane Intersections
Creators: name: Douari, Jamila
Publisher: name: arXiv
Year: 2006
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We discuss the duality of intersecting D1-D5 branes in the low energy effective theory in the presence of electric field. This duality is found to be unbroken. We also deal with the solutions corresponding to two and three excited scalars in the D3-brane theory in the absence and the presence of an electric field. The solutions are given as a spike which is interpreted as an attached bundle of a superposition of coordinates of another brane given as a collective coordinate a long which the brane extends away from the D3-brane. The lowest energy in both cases is higher than the energy found in the case of D1$\bot$D3 branes.
description: 14 pages, no figures, final version to appear in PLB
Thickness identification of thin InSe by optical microscopy methods
Creators: name: Zhao, Qinghua
name: Puebla, Sergio
name: Zhang, Wenliang
name: Wang, Tao
name: Frisenda, Riccardo
name: Castellanos-Gomez, Andres
Publisher: name: arXiv
Year: 2020
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: Indium selenide (InSe), as a novel van der Waals layered semiconductor, has attracted a large research interest thanks to its excellent optical and electrical properties in the ultra-thin limit. Here, we discuss four different optical methods to quantitatively identify the thickness of thin InSe flakes on various substrates, such as SiO2/Si or transparent polymeric substrates. In the case of thin InSe deposited on a transparent substrate, the transmittance of the flake in the blue region of the visible spectrum can be used to estimate the thickness. For InSe supported by SiO2/Si, the thickness of the flakes can be estimated either by assessing their apparent colors or accurately analyzed using a Fresnel-law based fitting model of the optical contrast spectra. Finally, we also studied the thickness dependency of the InSe photoluminescence emission energy, which provides an additional tool to estimate the InSe thickness and it works both for InSe deposited on SiO2/Si and on a transparent polymeric substrate.
description: 4 figures
Doped AB_2 Hubbard Chain: Spiral, Nagaoka and RVB States, Phase Separation and Luttinger Liquid Behavior
Creators: name: Montenegro-Filho, R. R.
name: Coutinho-Filho, M. D.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: We present an extensive numerical study of the Hubbard model on the doped AB$_2$ chain, both in the weak coupling and the infinite-U limit. Due to the special unit cell topology, this system displays a rich variety of phases as function of hole doping ($δ$) away from half-filling. Near half-filling, spiral states develop in the weak coupling regime, while Nagaoka itinerant ferromagnetism is observed in the infinite-U limit. For higher doping the system phase-separates before reaching a Mott insulating phase of short-range RVB states at $δ=1/3$. Moreover, for $δ>1/3$ we observe a crossover, which anticipates the Luttinger liquid behavior for $δ> 2/3$.
description: 11 pages, 13 figures
Data for the manuscript "Convergence to the fixed-node limit in deep variational Monte Carlo"
Creators: name: Schätzle, Zeno
name: Hermann, Jan
name: Noé, Frank
Publisher: name: figshare
Year: 2021
Subjects: subject: Computational Chemistry
subject: Computational Physics
subject: 80110 Simulation and Modelling
subject: FOS: Computer and information sciences

description: Data simulated with the deepQMC package, used to generate the figures from the manuscript "Convergence to the fixed-node limit in deep variational Monte Carlo".
A universal centred high-order method based on implicit Taylor series expansion with fast second order evolution of spatial derivatives
Creators: name: Montecinos, Gino I.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Numerical Analysis (math.NA)
subject: FOS: Mathematics
subject: 65M08, 65M12, 65L04

description: In this paper, a centred universal high-order finite volume method for solving hyperbolic balance laws is presented. The scheme belongs to the family of ADER methods where the Generalized Riemann Problems (GRP) is a building block. The solution to these problems is carried through an implicit Taylor series expansion, which allows the scheme to works very well for stiff source terms. A von Neumann stability analysis is carried out to investigate the range of CFL values for which stability and accuracy are balanced. The scheme implements a centred, low dissipation approach for dealing with the advective part of the system which profits from small CFL values. Numerical tests demonstrate that the present scheme can solve, efficiently, hyperbolic balance laws in both conservative and non-conservative form as well. An empirical convergence rate assessment shows that the expected theoretical orders of accuracy are achieved up to the fifth order.
Pseudocyrtolophosis alpestris Foissner 1980
Creators: name: Durán-Ramírez, Carlos Alberto
name: Dias, Roberto Júnio Pedroso
name: Estrada, Rosaura Mayén-
Publisher: name: Zenodo
Year: 2020
Subjects: Biodiversity
Taxonomy
Chromista
Ciliophora
Colpodea
Cyrtolophosidida
Cyrtolophosididae
Pseudocyrtolophosis
Pseudocyrtolophosis alpestris

description: Pseudocyrtolophosis alpestris Foissner, 1980
Distribution. BRAZIL: (Foissner et al. 2003). DOMINICAN REPUBLIC: (Foissner et al. 2003). ECUADOR: (Foissner et al. 2003). MEXICO: Ixtlán de Juárez (Durán-Ramírez et al. 2015), (To); Santuario del Bosque de Niebla, near Xalapa (Durán-Ramírez et al. 2015), (Th). VENEZUELA: South margin of the Henri Pittier National Park, Biological Station Rancho Grande (Foissner 2016); North border of the Henri Pittier National Park, surroundings of the village of Choroni (Foissner 2016), (Ts).
description: Published as part of Durán-Ramírez, Carlos Alberto, Dias, Roberto Júnio Pedroso & Estrada, Rosaura Mayén-, 2020, Checklist of ciliates (Alveolata: Ciliophora) that inhabit in bromeliads from the Neotropical Region, pp. 1-36 in Zootaxa 4895 (1) on page 26, DOI: 10.11646/zootaxa.4895.1.1, http://zenodo.org/record/4321437
Surface Melting of the Vortex Lattice in Layered Superconductors: Density Functional Theory
Creators: name: De Col, A.
name: Menon, G. I.
name: Geshkenbein, V. B.
name: Blatter, G.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: We study the effects of an $ab$-surface on the vortex-solid to vortex-liquid transition in layered superconductors in the limit of vanishing inter-layer Josephson coupling. We derive the interaction between pancake vortices in a semi-infinite sample and adapt the density functional theory of freezing to this system. We obtain an effective one-component order-parameter theory which can be used to describe the effects of the surface on vortex-lattice melting. Due to the absence of protecting layers in the neighbourhood of the surface, the vortex lattice formed near the surface is more susceptible to thermal fluctuations. Depending on the value of the magnetic field, we predict either a continuous or a discontinuous surface melting transition. For intermediate values of the magnetic field, the surface melts continuously, assisting the formation of the liquid phase and suppressing hysteresis above the melting transition, a prediction consistent with experimental results. For very low and very high magnetic fields, the surface melts discontinuously. The two different surface melting scenarios are separated by two surface multicritical points, which we locate on the melting line.
description: 16 pages, 12 figures
Active opportunity and fund performance
Creators: name: Von Reibnitz, Anna
Publisher: name: The Australian National University
Year: 2013
Subjects: subject: Portfolio management
subject: Rate of return
subject: Investment analysis
subject: Investment advisors
subject: Investments

description: The active funds industry is large and growing. However empirical evidence suggests that the average active fund produces negative risk-adjusted performance after expenses. This is commonly taken as evidence that active fund managers lack the skills to justify the fees they charge. Existing studies look at performance over a sample period as a whole, without conditioning on the active opportunity set faced by fund managers. Yet active opportunity is not constant and has a major influence on the success of active strategies. This dissertation investigates the impact of active opportunity, as measured by cross-sectional dispersion in stock returns, on active fund performance. I find that a positive relation exists between active opportunity and the average performance of active funds. During periods of high return dispersion, in which active strategies have the greatest impact on returns, active fund performance on average significantly exceeds that achieved during lower dispersion months, in which active strategies are of lesser effect. Stratifying my sample based on the activeness of funds' strategies reveals that the positive relation between dispersion and fund performance is increasing in the activeness of the fund. A portfolio comprising the least active funds significantly underperforms when dispersion is low and does not improve when dispersion is high. A portfolio of the most active funds, on the other hand, does not significantly underperform in low dispersion months and achieves significantly higher performance in high dispersion months. Moreover, the outperformance of the most active funds relative to the least active funds documented in the literature is largely concentrated in months of high return dispersion. Bootstrap simulations performed to distinguish skill from luck in fund performance confirm that the prevalence of managerial skill significantly increases with fund activeness. Regardless of the performance metric employed, the least active fund portfolio contains the lowest prevalence of manager skill, with the highest prevalence of skilled managers contained within the most active portfolio of funds.
FROM 19__ TO 19__
Creators: name: Goldie, James
Publisher: name: The University of British Columbia
Year: 2018

description: Time book maintained sporadically by James Goldie from 1914 to 1929; mainly a record of labour performed for the ranch by individuals. Two loose paper inserts: - Statement dated Mar. 1, 1923; Mr. C.R. Wentworth; Dr. L.R.Seeman - Note dated June 20, 1922; pencilled notations of labour performed; N.A. Robinson; J. Wentworth.
On filament fragmentation and the impact of ambient environment on it
Creators: name: Anathpindika, S.
name: Di Francesco, J.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: Filaments are crucial intermediaries in the star formation process. Recent observations of filaments show that - \textbf{(i)} a number of them are non-singular entities, and rather a bundle of velocity coherent fibres, and \textbf{(ii)} while a majority of filaments spawn cores narrower than their natal filaments, some cores are broader. We explore these issues by developing hydrodynamic simulations of an initially sub-critical individual filament that is allowed to accrete gas from its neighbourhood and evolves under self-gravity. Results obtained here support the idea that fibres form naturally during the filament formation process. We further argue that the ambient environment, i.e., the magnitude of external pressure, and not the filament linemass alone, has bearing upon the morphology of its evolution. We observe that a filament is susceptible to the \emph{sausage}-type instability irrespective of the external pressure. The fragments, however, are pinched in a filament experiencing pressure comparable to that in the Solar neighbourhood ($\sim 10^{4}$ K cm$^{-3}$). By contrast, fragments are broad and spherical - having density profiles similar to that of a stable Bonnor - Ebert sphere - when the filament experiences a higher pressure, typically $\ge 10^{5}$ K cm$^{-3}$, but $\le 10^{6}$ K cm$^{-3}$). The filament tends to rupture at even higher external pressure ($\ge 10^{7}$ K cm$^{-3}$). These observations collectively mean that star formation is less efficient with increasing external pressure.
description: 19 pages, 14 figures; To appear in MNRAS; Fig. 2f has been revised slightly after an error was found in the earlier version