cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
BAIT: Benchmarking (Embedding) Architectures for Interactive Theorem-Proving
Creators: name: Lamont, Sean
name: Norrish, Michael
name: Dezfouli, Amir
name: Walder, Christian
name: Montague, Paul
Publisher: name: arXiv
Year: 2024
Subjects: subject: Artificial Intelligence (cs.AI)
subject: Machine Learning (cs.LG)
subject: Logic in Computer Science (cs.LO)
subject: FOS: Computer and information sciences

description: Artificial Intelligence for Theorem Proving has given rise to a plethora of benchmarks and methodologies, particularly in Interactive Theorem Proving (ITP). Research in the area is fragmented, with a diverse set of approaches being spread across several ITP systems. This presents a significant challenge to the comparison of methods, which are often complex and difficult to replicate. Addressing this, we present BAIT, a framework for fair and streamlined comparison of learning approaches in ITP. We demonstrate BAIT's capabilities with an in-depth comparison, across several ITP benchmarks, of state-of-the-art architectures applied to the problem of formula embedding. We find that Structure Aware Transformers perform particularly well, improving on techniques associated with the original problem sets. BAIT also allows us to assess the end-to-end proving performance of systems built on interactive environments. This unified perspective reveals a novel end-to-end system that improves on prior work. We also provide a qualitative analysis, illustrating that improved performance is associated with more semantically-aware embeddings. By streamlining the implementation and comparison of Machine Learning algorithms in the ITP context, we anticipate BAIT will be a springboard for future research.
Thermal Field Theory and Generalized Light Front Coordinates
Creators: name: Weldon, H. Arthur
Publisher: name: arXiv
Year: 2003
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: The dependence of thermal field theory on the surface of quantization and on the velocity of the heat bath is investigated by working in general coordinates that are arbitrary linear combinations of the Minkowski coordinates. In the general coordinates the metric tensor $g_{\bar{μν}}$ is non-diagonal. The Kubo, Martin, Schwinger condition requires periodicity in thermal correlation functions when the temporal variable changes by an amount $-i\big/(T\sqrt{g_{\bar{00}}})$. Light front quantization fails since $g_{\bar{00}}=0$, however various related quantizations are possible.
description: 10 pages
title: 01_0302
Creators: name: Wesley Baldwin, John
name: Baldwin, John W.
Publisher: name: NAKALA - https://nakala.fr (Huma-Num - CNRS)
publisherIdentifier: https://ror.org/04ces3204
publisherIdentifierScheme: ROR
Year: 2018
Subjects: subject: LaMOP
subject: Laboratoire de Médiévistique Occidentale de Paris

description: L'ensemble de ces notes ont été crée par John Baldwin lors d'une de ses premières périodes de résidence à Paris. Ces documents comprennent tous les magistri qu’il avait pu rencontrer dans ses sources. Aux XIIème et XIIIème siècles, les universités n'existant pas encore, le titre de magister s'il évoque certainement une compétence n'est pas rattaché de façon systématique au passage par les écoles. De surcroît, les magistris sont le plus souvent désignés par leur seul prénom. La lecture de ces données est donc difficile et suppose un long travail pour tenter d'identifier un individu auquel on pourrait rattacher plusieurs mentions. John Baldwin avait donc renoncé à utiliser ces données pour donner un prolongement à sa magnifique étude sur les gradués d'université et leur emploi par les Capétiens et les Plantagenêts. Néanmoins, il a conservé ces données et elles sont potentiellement très utile dans le cadre de Studium, comme le sont toutes les mentions dans les volumes des Fasti Ecclesiae Gallicanae de chanoines portant ce titre de magister sans autres précisions. L'ampleur des dépouillements rend ces données très utiles et nous devons une grande reconnaissance à John Baldwin pour avoir pris la peine de faire photocopier ses fiches et de nous les avoir transmises amicalement.
Les données ainsi que les images des fiches sont accessibles sur le site Internet à l'adresse suivante : http://studium-baldwin.lamop.fr/.
Les transcriptions des fiches ont été effectuées par des étudiants de Paris 1 Panthéon - Sorbonne mais elles n'ont pas été corrigées par la suite.
description: Relation: https://lamop.hypotheses.org/
Open Access to the Resource of Antibiotic Treatment Efficacy Subject to Bacterial Resistance
Creators: name: Nkuiya, Bruno
name: Herrmann, Markus
name: Nkuiya, Bruno
name: Herrmann, Markus
Publisher: name: Unknown
Year: 2013
Subjects: subject: Health Economics and Policy
subject: Antibiotic management
subject: Non-renewable resource
subject: Open access
subject: Social optimum
subject: Public health

description: In this paper, we are interested in how a pharmaceutical industry manages existing antibiotic drugs in the context of bacterial resistance. We consider a model based on an epidemiological framework where antibiotic recovery rates, and thus intrinsic qualities, may differ. Antibiotic efficacy is modeled as a common pool of a non-renewable resource to which antibiotic producers have open access. The paper derives antibiotic demands within a vertical differentiation model and characterizes the dynamics of infected individuals, antibiotic efficacy and treatment rates under the open-access and the socially optimal allocation. We show that the high-quality antibiotic drug loses its comparative advantage over time under both allocations, such that the low-quality drug should be used longer. This occurs at a later point of time in the social optimum and allows for a better control of infection in the longer run. In contrast with the ambiguous outcome reported in the literature, the socially optimal steady-state level of antibiotic efficacy is lower than that of the open-access allocation. We also extend our analysis to a strategic, duopolistic context.
Anomalous Ising freezing times
Creators: name: Denholm, James
name: Hourahine, Ben
Publisher: name: arXiv
Year: 2020
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: We measure the relaxation time of a square lattice Ising ferromagnet that is quenched to zero-temperature from supercritical initial conditions. We reveal an anomalous and seemingly overlooked timescale associated with the relaxation to "frozen" two-stripe states. While close to a power law of the form $\sim L^ν$ , we argue this timescale actually grows as $\sim L^{2}\ln L$, with L the linear dimension of the system. We uncover the mechanism behind this scaling form by using a synthetic initial condition that replicates the late time ordering of two-stripe states, and subsequently explain it heuristically.
Semi-brittle flow of rocks: Cracks, dislocations and strain hardening
Creators: name: Brantut, Nicolas
Publisher: name: arXiv
Year: 2024
Subjects: subject: Geophysics (physics.geo-ph)
subject: FOS: Physical sciences

description: Strain hardening is a key feature observed in many rocks deformed in the so-called ``semi-brittle'' regime, where both crystal plastic and brittle deformation mechanisms operate. Dislocation storage has long been recognised as a major process leading to strain hardening. Here, we suggest that tensile microcracks may be viewed as dislocation sinks, by offering internal free surfaces where dislocations can escape individual crystals within an aggregate. Strain hardening is modelled with a conventional approach, combining Taylor's equation relating stress to dislocation density, and a dislocation density evolution law based on dislocation mean-free path and dynamic recovery. The initiation of microcracks is modelled as a function dislocation density, assuming dislocation pile-ups at grain boundaries. Microcrack growth is modelled using linear elastic fracture mechanics. The model captures important qualitative features observed in calcite marble deformation experiments: pressure-dependency of strength in the ductile regime, and a reduction in hardening linked to an increase in crack growth with decreasing confining pressure. Grain-size dependency of strength and hardening is also captured but requires significant toughening (or limitation to crack growth) at small grain sizes. The model can be improved significantly once detailed, systematic microstructural observations become available.
Quality factor of dielectric optical resonators
Creators: name: Zambrana-Puyalto, Xavier
name: Raza, Søren
Publisher: name: arXiv
Year: 2024
Subjects: subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: We show analytically that the quality ($Q$) factor of magnetic and electric Mie modes in a lossless dielectric spherical resonator with high refractive index ($n \gg 1$) scales as $n^{2j+1}$ and $n^{2j+3}$ respectively, where $j$ denotes the multipolar order. We numerically validate these results and show that our high-$n$ analytical relation is accurate for the dipolar modes when $n>5$. For higher multipolar orders, the analytical relation becomes valid for increasingly lower $n$. We study the dependence of the $Q$ factor on absorption losses and determine a general functional form that describes the $Q$ factor for all Mie modes for any complex refractive index. Finally, we observe that this functional form predicts a multipolar-dependent singular value of optical gain which gives rise to a lasing condition with an infinite $Q$ factor.
description: 4 figures
Multiplicity of Galactic Cepheids and RR Lyrae stars from Gaia DR2 -- II. Resolved common proper motion pairs
Creators: name: Kervella, P.
name: Gallenne, A.
name: Evans, N. R.
name: Szabados, L.
name: Arenou, F.
name: Mérand, A.
name: Nardetto, N.
name: Gieren, W.
name: Pietrzynski, G.
Publisher: name: arXiv
Year: 2019
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: Context. The multiplicity of classical Cepheids (CCs) and RR Lyrae stars (RRLs) is still imperfectly known, particularly for RRLs. Aims. In order to complement the close-in short orbital period systems presented in Paper I, our aim is to detect the wide, spatially resolved companions of the targets of our reference samples of Galactic CCs and RRLs. Methods. Angularly resolved common proper motion pairs were detected using a simple progressive selection algorithm to separate the most probable candidate companions from the unrelated field stars. Results. We found 27 resolved, high probability gravitationally bound systems with CCs out of 456 examined stars, and one unbound star embedded in the circumstellar dusty nebula of the long-period Cepheid RS Pup. We found seven spatially resolved, probably bound systems with RRL primaries out of 789 investigated stars, and 22 additional candidate pairs. We report in particular new companions of three bright RRLs: OV And (companion of F4V spectral type), RR Leo (M0V), and SS Oct (K2V). In addition, we discovered resolved companions of 14 stars that were likely misclassified as RRLs. Conclusions. The detection of resolved non-variable companions around CCs and RRLs facilitates the validation of their Gaia DR2 parallaxes. The possibility to conduct a detailed analysis of the resolved coeval companions of CCs and old population RRLs will also be valuable to progress on our understanding of their evolutionary path.
description: 42 pages, published in Astronomy & Astrophysics
Targeted delivery of the probiotic Saccharomyces boulardii to the extracellular matrix enhances gut residence time and recovery in murine colitis
Creators: name: Wang, Yuyan
name: Nguyen, Juliane
name: Anselmo, Aaron C.
name: Heavey, Mairead K.
name: Hazelton, Anthony
name: Arthur, Janelle C.
name: Garner, Mitzy
Publisher: name: Springer Nature
Year: 2024

description: Probiotic and engineered microbe-based therapeutics are an emerging class of pharmaceutical agents. They represent a promising strategy for treating various chronic and inflammatory conditions by interacting with the host immune system and/or delivering therapeutic molecules. Here, we engineered a targeted probiotic yeast platform wherein Saccharomyces boulardii is designed to bind to abundant extracellular matrix proteins found within inflammatory lesions of the gastrointestinal tract through tunable antibody surface display. This approach enabled an additional 24–48 h of probiotic gut residence time compared to controls and 100-fold increased probiotic concentrations within the colon in preclinical models of ulcerative colitis in female mice. As a result, pharmacodynamic parameters including colon length, colonic cytokine expression profiles, and histological inflammation scores were robustly improved and restored back to healthy levels. Overall, these studies highlight the potential for targeted microbial therapeutics as a potential oral dosage form for the treatment of inflammatory bowel diseases.
Deformed logarithms and entropies
Creators: name: Kaniadakis, G.
name: Lissia, M.
name: Scarfone, A. M.
Publisher: name: arXiv
Year: 2004
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: High Energy Physics - Theory (hep-th)
subject: Data Analysis, Statistics and Probability (physics.data-an)
subject: FOS: Physical sciences

description: By solving a differential-functional equation inposed by the MaxEnt principle we obtain a class of two-parameter deformed logarithms and construct the corresponding two-parameter generalized trace-form entropies. Generalized distributions follow from these generalized entropies in the same fashion as the Gaussian distribution follows from the Shannon entropy, which is a special limiting case of the family. We determine the region of parameters where the deformed logarithm conserves the most important properties of the logarithm, and show that important existing generalizations of the entropy are included as special cases in this two-parameter class.
description: Presented at next2003, Second Sardinian International Conference on News and Expectations in Thermostatistics, Villasimius (Cagliari) Italy, 21st-28th September 2003. In press Physica A (2004). Elsevier LaTeX macros, 11 pages, 1 figure
ANÁLISE SOCIOECONÔMICA DO IRRIGANTE DA BACIA HIDROGRÁFICA METROPOLITANA, ESTADO DO CEARÁ
Creators: name: Campos, Kilmer Coelho
name: Pinheiro, Jose Cesar Vieira
name: Campos, Roberio Telmo
name: Campos, Kilmer Coelho
name: Pinheiro, Jose Cesar Vieira
name: Campos, Roberio Telmo
Publisher: name: Unknown
Year: 2006
Subjects: Community/Rural/Urban Development
Environmental Economics and Policy

description: Objetiva-se identificar aspectos sociais, técnicos e econômicos do produtor irrigante do Município de Guaiúba, Estado do Ceará. Os dados utilizados são de natureza primária obtidos através da aplicação de questionários. Fazem-se as análises tabular e descritiva dos dados, para em seguida calcular indicadores de rentabilidade. Os irrigantes têm um baixo nível de escolaridade. A maioria dos agricultores (90,48%) se dedica a irrigação há mais de 6 anos. Com relação à condição legal da propriedade, quase três quartos dos produtores são proprietários e o restante não apresenta o título de posse da terra. Em sua maioria, o produtor é quem decide o que e quanto produzir sem seguir nenhum plano proposto ou orientação de técnicos da EMATERCE/Cooperativas. Predomina a utilização de sistemas de irrigação pouco poupadores de água tais como, aspersão convencional, sulco, inundação e pivô central. Para muitos produtores da amostra, as atividades geraram retornos positivos, enquanto que sete apresentaram-se com prejuízos. Contudo, dentre estes, quase todos adquiriram margens líquidas positivas, significando que a atividade está remunerando a mão-de-obra familiar, as depreciações e, até mesmo, parte do capital empatado.
Random Networks with Tunable Degree Distribution and Clustering
Creators: name: Volz, Erik
Publisher: name: arXiv
Year: 2004
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: FOS: Physical sciences

description: We present an algorithm for generating random networks with arbitrary degree distribution and Clustering (frequency of triadic closure). We use this algorithm to generate networks with exponential, power law, and poisson degree distributions with variable levels of clustering. Such networks may be used as models of social networks and as a testable null hypothesis about network structure. Finally, we explore the effects of clustering on the point of the phase transition where a giant component forms in a random network, and on the size of the giant component. Some analysis of these effects is presented.
description: 9 pages, 13 figures corrected typos, added two references, reorganized references
Factorization Theorems for High Energy nn, gamma p and gamma gamma Scattering
Creators: name: Block, M. M.
Publisher: name: arXiv
Year: 2003
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: The robustness of the factorization theorem for total cross sections, $σ_{nn}/σ_{γp}=σ_{γp}/σ_{γγ}$, originally proved by Block and Kaidalov\cite{bk} for $nn$ (the even portion of $pp$ and $\pbar p$ scattering), $γp$ and $γγ$ scattering, is demonstrated. Factorization theorems for the nuclear slope parameter $B$ and $ρ$, the ratio of the real to the imaginary portion of the forward scattering amplitude, are derived under very general conditions, using analyticity and the optical theorem.
description: Latex2e, 8 pages, 1 postscript figure placed with epsfig.sty
The waste rock of the Touro copper deposit in Galicia, Spain: challenges for its environmental characterization
Creators: name: Meuzelaar, Tom
name: Núñez-Fernández, Pablo
name: Martín-Izard, Agustín
name: Arias-Prieto, Daniel
name: Díaz-Riopa, Fernando
Publisher: name: Geological Society of London
Year: 2021
Subjects: subject: Geology
subject: FOS: Earth and related environmental sciences

description: XRD results
On systems with finite ergodic degree
Creators: name: Isola, Stefano
Publisher: name: arXiv
Year: 2003
Subjects: subject: Dynamical Systems (math.DS)
subject: Mathematical Physics (math-ph)
subject: FOS: Mathematics
subject: FOS: Physical sciences

description: In this paper we study the ergodic theory of a class of symbolic dynamical systems $(Ø, T, μ)$ where $T:Ø\to Ø$ the left shift transformation on $Ø=\prod_0^\infty\{0,1\}$ and $μ$ is a $\s$-finite $T$-invariant measure having the property that one can find a real number $d$ so that $μ(τ^d)=\infty$ but $μ(τ^{d-ε})0$, where $τ$ is the first passage time function in the reference state 1. In particular we shall consider invariant measures $μ$ arising from a potential $V$ which is uniformly continuous but not of summable variation. If $d>0$ then $μ$ can be normalized to give the unique non-atomic equilibrium probability measure of $V$ for which we compute the (asymptotically) exact mixing rate, of order $n^{-d}$. We also establish the weak-Bernoulli property and a polynomial cluster property (decay of correlations) for observables of polynomial variation. If instead $d\leq 0$ then $μ$ is an infinite measure with scaling rate of order $n^d$. Moreover, the analytic properties of the weighted dynamical zeta function and those of the Fourier transform of correlation functions are shown to be related to one another via the spectral properties of an operator-valued power series which naturally arises from a standard inducing procedure. A detailed control of the singular behaviour of these functions in the vicinity of their non-polar singularity at $z=1$ is achieved through an approximation scheme which uses generating functions of a suitable renewal process. In the perspective of differentiable dynamics, these are statements about the unique absolutely continuous invariant measure of a class of piecewise smooth interval maps with an indifferent fixed point.
description: 42 pages
DIMENSIONANDO O PIB DO AGRONEGÓCIO EM PERNAMBUCO
Creators: name: Costa, Ecio De Farias
name: Neto, Djalma Leite De Araujo
name: Costa, Ecio De Farias
name: Neto, Djalma Leite De Araujo
Publisher: name: Unknown
Year: 2006
Subjects: subject: Agribusiness
subject: Dimensionamento
subject: PIB do Agronegócio
subject: Pernambuco

description: Este estudo é realizado devido à importância do cálculo do PIB (Produto Interno Bruto) para a formulação e direcionamento de políticas, e, também, por conta da abertura dos mercados, que forçou o agronegócio, e todos os demais setores da economia, a otimizarem as suas unidades produtivas a fim de se tornarem mais competitivas. O presente trabalho conceitua e faz a caracterização setorial do que venha a ser o complexo agroindustrial (CAI), ou, em outras palavras, o agronegócio. Também trás à tona toda a metodologia usada no dimensionamento do CAI pernambucano. Na análise, a classificação setorial do CAI pernambucano e a mensuração do PIB do CAI são apresentadas. Nestas participam as mensurações dos setores que ficam a montante e a jusante, do núcleo (produto agropecuário) e dos impostos. Além de outros resultados relacionados à participação dos setores a montante, a jusante e sobre o núcleo do agronegócio, aponta-se que o PIB do agronegócio de Pernambuco representa 21,2% do PIB total do Estado, contra 7,7% apontados por estatísticas oficiais para o setor primário.
Uncovering Bound States in the Continuum in InSb nanowire networks
Creators: name: Martínez, D.
name: Orellana, P. A.
name: Rosales, L.
name: Dolado, J.
name: Amado, M.
name: Diez, E.
name: Domínguez-Adame, F.
name: Lima, R. P. A.
Publisher: name: arXiv
Year: 2024
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Other Condensed Matter (cond-mat.other)
subject: FOS: Physical sciences

description: Bound states in the continuum (BICs) are exotic, localized states even though their energy lies in the continuum spectra. Since its discovery in 1929, the quest to unveil these exotic states in charge transport experiments remains an active pursuit in condensed matter physics. Here, we study charge transport in InSb nanowire networks in the ballistic regime and subject to a perpendicular magnetic field as ideal candidates to observe and control the appearance of BICs. We find that BICs reveal themselves as distinctive resonances or antiresonances in the conductance by varying the applied magnetic field and the Fermi energy. We systematically consider different lead connections in hashtag-like nanowire networks, finding the optimal configuration that enhances the features associated with the emergence of BICs. Finally, the investigation focuses on the effect of the Rashba spin-orbit interaction of InSb on the occurrence of BICs in nanowire networks. While the interaction generally plays a detrimental role in the signatures of the BICs in the conductance of the nanowire networks, it opens the possibility to operate these nanostructures as spin filters for spintronics. We believe that this work could pave the way for the unambiguous observation of BICs in charge transport experiments and for the development of advanced spintronic devices.
description: 9 pages, 6 figures, supplementary material. Submission to SciPost
The effect of solvent polarity on the antioxidant potential of echinatin, a retrochalcone, towards various ROS: a DFT thermodynamic study
Creators: name: Mittal, Ankit
name: Kakkar, Rita
Publisher: name: Taylor & Francis
Year: 2020
Subjects: subject: Biophysics
subject: Biochemistry
subject: 29999 Physical Sciences not elsewhere classified
subject: FOS: Physical sciences
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: Ecology
subject: FOS: Biological sciences
subject: 69999 Biological Sciences not elsewhere classified

description: The antioxidant properties of echinatin (Ech), isolated from liquorice, have recently been reported. It is well known that the free radical species can be deactivated by phenolic antioxidants via different mechanistic pathways. In this work, the scavenging of eighteen different reactive oxygen species (ROS) has been considered, focussing on three main working mechanisms, namely hydrogen atom transfer (HAT), single electron transfer followed by proton transfer (SET-PT) and sequential proton loss electron transfer (SPLET). The investigations have been performed in different dielectric media, viz. gas phase, benzene, methanol and aqueous solution, using density functional theory (DFT) calculations at the M05-2X/6-311++G** level. Various molecular descriptors have been elucidated for Ech as well as the ROS and compared with the reference antioxidant molecule, trolox. In addition, the redox potentials and the equilibrium constants have been calculated to discuss the feasibility of the overall scavenging process. The results demonstrate that the 4-OH group is the first site for H-atom donation, followed by 4’-OH. Further, it has been found that HAT would be the most favourable mechanism in the gas phase. The SPLET mechanism is thermodynamically favoured in polar media like water and methanol, while in the case of non-polar solvents like benzene, the two mechanisms are observed to be competitive.
Quantum key distribution with 1.25 Gbps clock synchronization
Creators: name: Bienfang, J. C.
name: Gross, A. J.
name: Mink, A.
name: Hershman, B. J.
name: Nakassis, A.
name: Tang, X.
name: Lu, R.
name: Su, D. H.
name: Clark, Charles W
name: Williams, Carl J.
name: Hagley, E. W.
name: Wen, Jesse
Publisher: name: arXiv
Year: 2004
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We have demonstrated the exchange of sifted quantum cryptographic key over a 730 meter free-space link at rates of up to 1.0 Mbps, two orders of magnitude faster than previously reported results. A classical channel at 1550 nm operates in parallel with a quantum channel at 845 nm. Clock recovery techniques on the classical channel at 1.25 Gbps enable quantum transmission at up to the clock rate. System performance is currently limited by the timing resolution of our silicon avalanche photodiode detectors. With improved detector resolution, our technique will yield another order of magnitude increase in performance, with existing technology.
description: 6 pages, 3 figures, 99 kB .pdf document
The waste rock of the Touro copper deposit in Galicia, Spain: challenges for its environmental characterization
Creators: name: Meuzelaar, Tom
name: Núñez-Fernández, Pablo
name: Martín-Izard, Agustín
name: Arias-Prieto, Daniel
name: Díaz-Riopa, Fernando
Publisher: name: Geological Society of London
Year: 2021
Subjects: subject: Geology
subject: FOS: Earth and related environmental sciences

description: Static test results
Improvement of dielectric loss of doped Ba0.5Sr0.5TiO3 thin films for tunable microwave devices
Creators: name: Chong, K. B.
name: Kong, L. B.
name: Chen, LinFeng
name: Yan, L.
name: Tan, C. Y.
name: Yang, T.
name: Ong, C. K.
name: Osipowicz, T.
Publisher: name: arXiv
Year: 2003
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Al2O3-Ba0.5Sr0.5TiO3 (Al2O3-BST) thin films, with different Al2O3 contents, were deposited on (100) LaAlO3 substrate by pulsed laser deposition (PLD) technique. The Al2O3-BST films was demosnstrated to be a suitable systems to fabricate ferroelectric thin films with low dielectric loss and higher figure of merit for tunable microwave devices. Pure BST thin films were also fabricated for comparison purpose. The films' structure and morphology were analyzed by X-ray diffractiopn and scanning electron microscopy, respectively; nad showed that the surface roughness for the Al2O3-BST films increased with the Al2O3 content. Apart from that, the broadening in the intensity peak in XRD result indicating the grain size of the Al2O3-BST films reduced with the increasing of Al2O3 dopant. We measured the dielctric properties of Al2O3-BST films with a home-made non-destructive dual resonator method at frequency ~ 7.7 GHZ. The effect of doped Al2O3 into BST thin films significantly reduced the dielectric constant, dielectric loss and tunability compare to pure BST thin film. Our result shows the figure of merit (K), used to compare the films with varied dielectric properties, increased with the Al2O3 content. Therefore Al2O3-BST films show the potential to be exploited in tunable microwave devices.
description: 8 pages, 4 figures, 1 table. Accepted & tentatively for Feb 15 2004 issue, Journal of Applied Physics
Lecturers' Multimedia Technology Skills for Global Competitiveness in Public Universities in Rivers State
Creators: name: Dr. Amadi, Chijioke Clancy
name: Dr. Ekeh, Florence
name: Nalelo, Oroma Archibald
Publisher: name: NJSR Publication Service
Year: 2024
Subjects: Lecturers
Multimedia
technology skills
global competitiveness
public universities
Rivers State

description: The study investigated lecturers’ multimedia technology skills for global competitiveness in public universities in Rivers State. The purpose of the study was to examine the ways technological skills can be enhance global competitiveness. Four research questions and four hypotheses guided the study. The population comprised 128 academic staff in the Department of Educational Management from the three (3) public universities, namely: Ignatius Ajuru University of Education with 44 academic staff, Rivers State University, 51, and University of Port Harcourt, 33, respectively. A sample size of 128 lecturers was drawn using census sampling technique. A validated instrument titled “Lecturer Multimedia Technology Skill for Global Competitiveness in Public University questionnaire” (LMTSGCPUQ) was used for data collection. The reliability coefficient gave 0.88 for the study, a modified four-point Likert’s scale was used. Mean and standard deviation were used to answer research questions while t-test was used to test the hypotheses at 0.05 level of significance. The criterion means of 2.50, was interpreted as accepted and below 2.50 was interpreted as rejected. The result revealed that lecturers agreed that video technology, cyber security, troubleshoot skills, among others as the innovative and 21st century academic skills required for global competitiveness in public universities. It was concluded that creating multimedia technology skills would develop lecturers’ mental skills and culture for a competitive advantage. It was recommended that stakeholders in education should encourage the use of multimedia technology skills for quality education delivery, and education managers should engage the services of experience facilitators in order to properly guide lecturers on technology skills related areas, and that non-governmental agencies should support to provide a stable network supply to boost the use of technological devices for teaching and learning in public university.
The cosmic trimmer: Black-hole hair in scalar-Gauss-Bonnet gravity is altered by cosmology
Creators: name: Babichev, Eugeny
name: Sawicki, Ignacy
name: Trombetta, Leonardo G.
Publisher: name: arXiv
Year: 2024
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: Static black holes in general relativity modified by a linear scalar coupling to the Gauss-Bonnet invariant always carry hair. We show that the same mechanism that creates the hair makes it incompatible with a cosmological horizon. Other scalar-tensor models do not have this problem when time dependence of the scalar provides a natural matching to cosmology. Scalar-Gauss-Bonnet gravity is particularly rigid, and such a scenario does not help. An extra operator makes the theory behave like the other models, and the cosmological horizon can be accommodated. The hair, however, is drastically altered.
description: 6 pages. Published version
The influence of H/D kinetic isotope effect on radiation-induced transformations of hydroxyl-containing compounds in aqueous solutions
Creators: name: Palina S. Nepachalovich
name: Shadyro, Oleg I.
name: Bekish, Andrei V.
name: Shmanai, Vadim V.
Publisher: name: Taylor & Francis
Year: 2020
Subjects: subject: Biophysics
subject: Biochemistry
subject: Physiology
subject: FOS: Biological sciences
subject: Pharmacology
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: 69999 Biological Sciences not elsewhere classified
subject: Cancer

description: Vicinal diols and its derivatives can be exploited as model compounds for the investigation of radiation-induced free-radical transformations of hydroxyl-containing biomolecules such as carbohydrates, phospholipids, ribonucleotides, amino acids, and peptides. In this paper, for the first time, the prospects of isotope reinforcement approach in inhibiting free-radical transformations of hydroxyl-containing compounds in aqueous solutions are investigated on the example of radiolysis of 1,2-propanediol and 1,2-propanediol-2-d1 aqueous solutions. At an absorbed dose rate of 0.110 ± 0.003 Gy·s−1 a profound kinetic isotope effect (KIE) is observed for the non-branched chain formation of acetone, which is a final dehydration product of predominant carbon-centred radicals CH3·C(OH)CH2OH. In 0.1 and 1 M deaerated solutions at pH 7.00 ± 0.01, the values of KIE are 8.9 ± 1.7 and 15.3 ± 3.1, respectively. A rationale for the fact that a strong KIE takes place only in the case of chain processes, which may occur during free-radical transformations of vicinal diols, is also provided herein based on the results of 2-propanol and 2-propanol-2-d1 indirect radiolysis. Lastly, the lack of KIE is shown in the case of 2-butanone formation from 2,3-butanediol or 2,3-butanediol-2,3-d2. This indicates that the type (primary, secondary) of the β-carbonyl radicals formed as a result of CH3·C(OH)CH(OH)R (R = H, CH3) dehydration determines the manifestation of the effect.
MOESM1 of Using EMDR therapy with patients in an acute mental health crisis
Creators: name: Proudlock, Simon
name: Peris, Jasmine
Publisher: name: figshare
Year: 2020
Subjects: subject: Space Science
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: 69999 Biological Sciences not elsewhere classified
subject: FOS: Biological sciences
subject: 19999 Mathematical Sciences not elsewhere classified
subject: FOS: Mathematics
subject: Science Policy
subject: Hematology

description: Additional file 1: Raw EMDR Data. Table S1. Paired Samples Statistics. Table S2. Paired Samples Correlations. Table S3. Paired Samples Test.
WMAP and Inflation
Creators: name: Barger, V.
name: Lee, Hye-Sung
name: Marfatia, Danny
Publisher: name: arXiv
Year: 2003
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: Astrophysics (astro-ph)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We assay how inflationary models whose properties are dominated by the dynamics of a single scalar field are constrained by cosmic microwave background (CMB) data from the Wilkinson Microwave Anisotropy Probe (WMAP). We classify inflationary models in a plane defined by the horizon-flow parameters. Our approach differs from that of the WMAP collaboration in that we analyze only WMAP data and take the spectral shapes from slow-roll inflation rather than power-law parameterizations of the spectra. The only other information we use is the measurement of $h$ from the Hubble Space Telescope (HST) Key Project. We find that the spectral index of primordial density perturbations lies in the 1σrange 0.94
description: 7 pages, 3 figures. Version to appear in PLB
The waste rock of the Touro copper deposit in Galicia, Spain: challenges for its environmental characterization
Creators: name: Meuzelaar, Tom
name: Núñez-Fernández, Pablo
name: Martín-Izard, Agustín
name: Arias-Prieto, Daniel
name: Díaz-Riopa, Fernando
Publisher: name: Geological Society of London
Year: 2021
Subjects: subject: Geology
subject: FOS: Earth and related environmental sciences

description: SPLP results
The waste rock of the Touro copper deposit in Galicia, Spain: challenges for its environmental characterization
Creators: name: Meuzelaar, Tom
name: Núñez-Fernández, Pablo
name: Martín-Izard, Agustín
name: Arias-Prieto, Daniel
name: Díaz-Riopa, Fernando
Publisher: name: Geological Society of London
Year: 2021
Subjects: subject: Geology
subject: FOS: Earth and related environmental sciences

description: Humidity cell results
Long route to consensus: Two stage coarsening in a binary choice voting model
Creators: name: Mukherjee, Sudip
name: Biswas, Soumyajyoti
name: Sen, Parongama
Publisher: name: arXiv
Year: 2020
Subjects: subject: Physics and Society (physics.soc-ph)
subject: FOS: Physical sciences

description: Formation of consensus, in binary yes/no type of voting, is a well defined process. However, even in presence of clear incentives, the dynamics involved can be incredibly complex. Specifically, formations of large groups of similarly opinionated individuals could create a condition of `support-bubbles' or spontaneous polarization that renders consensus virtually unattainable (e.g., the question of the UK exiting the EU). There have been earlier attempts in capturing the dynamics of consensus formation in societies through simple $Z_2$-symmetric models hoping to capture the essential dynamics of average behaviorof a large number of individuals in a statistical sense. However, in absence of external noise, they tend to reach a frozen state with fragmented and polarized states i.e., two or more groups of similarly opinionated groups with frozen dynamics. Here we show in a kinetic exchange opinion model (KEM) considered on $L \times L$ square lattices, that while such frozen states could be avoided, an exponentially slow approach to consensus is manifested. Specifically, the system could either reach consensus in a time that scales as $L^2$ or a long lived metastable state (termed a domain-wall state) for which formation of consensus takes a time scaling as $L^{3.6}$. The latter behavior is comparable to some voter-like models with intermediate states studied previously. The late-time anomaly in the time scale is reflected in the persistence probability of the model. Finally, the interval of zero-crossing of the average opinion i.e., the time interval over which the average opinion does not change sign is shown to follow a scale free distribution, which is compared with that seen in the opinion surveys regarding Brexit and associated issues in the last 40 years. The issue of minority spreading is also addressed by calculating the exit probability.
description: 10 pages, 7 figures
MOESM2 of Establishing views of traditional healers and biomedical practitioners on collaboration in mental health care in Zanzibar: a qualitative pilot study
Creators: name: Solera-Deuchar, Lindsay
name: Mussa, Mahmoud
name: Ali, Suleiman
name: Haji Haji
name: McGovern, Peter
Publisher: name: figshare
Year: 2020
Subjects: subject: Medicine
subject: 69999 Biological Sciences not elsewhere classified
subject: FOS: Biological sciences
subject: 80699 Information Systems not elsewhere classified
subject: FOS: Computer and information sciences
subject: Developmental Biology
subject: Cancer
subject: Science Policy

description: Additional file 2. Topic guides.
Solar X-ray Monitor (XSM) On-board Chandrayaan-2 Orbiter
Creators: name: Shanmugam, M.
name: Vadawale, S. V.
name: Patel, Arpit R.
name: Adalaja, Hitesh Kumar
name: Mithun, N. P. S.
name: Ladiya, Tinkal
name: Goyal, Shiv Kumar
name: Tiwari, Neeraj K.
name: Singh, Nishant
name: Kumar, Sushil
name: Painkra, Deepak Kumar
name: Acharya, Y. B.
name: Bhardwaj, Anil
name: Hait, A. K.
name: Patinge, A.
name: Kapoor, Abinandhan
name: Kumar, H. N. Suresh
name: Satya, Neeraj
name: Saxena, Gaurav
name: Arvind, Kalpana
Publisher: name: arXiv
Year: 2019
Subjects: subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: Solar X-ray Monitor (XSM) is one of the scientific instruments on-board Chandrayaan-2 orbiter. The XSM along with instrument CLASS (Chandras Large Area Soft x-ray Spectrometer) comprise the remote X-ray fluorescence spectroscopy experiment of Chandrayaan-2 mission with an objective to determine the elemental composition of the lunar surface on a global scale. XSM instrument will measure the solar X-rays in the energy range of 1-15 keV using state-of-the-art Silicon Drift Detector (SDD). The Flight Model (FM) of the XSM payload has been designed, realized and characterized for various operating parameters. XSM provides energy resolution of 180 eV at 5.9 keV with high time cadence of one second. The X-ray spectra of the Sun observed with XSM will also contribute to the study of solar corona. The detailed description and the performance characteristics of the XSM instrument are presented in this paper.
MOESM1 of Engineering of Streptomyces lividans for heterologous expression of secondary metabolite gene clusters
Creators: name: Ahmed, Yousra
name: Rebets, Yuriy
name: Estévez, Marta
name: Zapp, Josef
name: Myronovskyi, Maksym
name: Luzhetskyy, Andriy
Publisher: name: figshare
Year: 2020
Subjects: subject: Biochemistry
subject: Microbiology
subject: FOS: Biological sciences
subject: Genetics
subject: Molecular Biology
subject: 69999 Biological Sciences not elsewhere classified
subject: 80699 Information Systems not elsewhere classified
subject: FOS: Computer and information sciences
subject: 19999 Mathematical Sciences not elsewhere classified
subject: FOS: Mathematics
subject: Developmental Biology
subject: Inorganic Chemistry
subject: FOS: Chemical sciences
subject: Plant Biology
subject: Computational Biology

description: Additional file 1: Table S1. Secondary metabolites gene clusters in S. lividans TK24 and their transcriptional level Average in minimal medium in mini-bioreactor [1].
Modeling hydrodynamics, magnetic fields and synthetic radiographs for high-energy-density plasma flows in shock-shear targets
Creators: name: Lu, Yingchao
name: Li, Shengtai
name: Li, Hui
name: Flippo, Kirk A.
name: Barnak, Dan
name: Birkel, Andrew
name: Lahmann, Brandon
name: Li, Chikang
name: Rasmus, Alexander M.
name: Kelso, Kwyntero
name: Zylstra, Alex
name: Liang, Edison
name: Tzeferacos, Petros
name: Lamb, Don
Publisher: name: arXiv
Year: 2019
Subjects: subject: Plasma Physics (physics.plasm-ph)
subject: FOS: Physical sciences

description: Three-dimensional FLASH radiation-magnetohydrodynamics (radiation-MHD) modeling is carried out to study the hydrodynamics and magnetic fields in the shock-shear derived platform. Simulations indicate that fields of tens of Tesla can be generated via Biermann battery effect due to vortices and mix in the counter-propagating shock-induced shear layer. Synthetic proton radiography simulations using MPRAD and synthetic X-ray image simulations using SPECT3D are carried out to predict the observable features in the diagnostics. Quantifying the effects of magnetic fields in inertial confinement fusion (ICF) and high-energy-density (HED) plasmas represents frontier research that has far-reaching implications in basic and applied sciences.
description: 14 pages, 7 figures
Multipartite entanglement distribution in a topological photonic network
Creators: name: Zurita, Juan
name: Casado, Andrés Agustí
name: Creffield, Charles E.
name: Platero, Gloria
Publisher: name: arXiv
Year: 2024
Subjects: subject: Quantum Physics (quant-ph)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: In the ongoing effort towards a scalable quantum computer, multiple technologies have been proposed. Some of them exploit topological materials to process quantum information. In this work, we propose a lattice of photonic cavities with alternating hoppings to create a modified multidomain SSH chain, that is, a sequence of topological insulators made from chains of dimers. A qubit is then coupled to each boundary. We show this system is well suited for quantum information processing because topological transfer of photons through this one-dimensional lattice can entangle any set of qubits on demand, providing a scalable quantum platform. We verify this claim evaluating entanglement measures and witnesses proving that bipartite and multipartite entanglement is produced, even in the presence of some disorder.
description: 17 pages, 10 figures
Anisotropic flow from Lee-Yang zeroes: a practical guide
Creators: name: Borghini, N.
name: Bhalerao, R. S.
name: Ollitrault, J. -Y.
Publisher: name: arXiv
Year: 2004
Subjects: subject: Nuclear Theory (nucl-th)
subject: Nuclear Experiment (nucl-ex)
subject: FOS: Physical sciences

description: We present a new method to analyze anisotropic flow from the genuine correlation among a large number of particles, focusing on the practical implementation of the method.
description: 4 pages; contribution to Quark Matter 2004, Oakland, January 11-17, 2004
Axino dark matter from thermal production
Creators: name: Brandenburg, Arnd
name: Steffen, Frank Daniel
Publisher: name: arXiv
Year: 2004
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: The axino is a promising candidate for dark matter in the Universe. It is electrically and color neutral, very weakly interacting, and could be - as assumed in this study - the lightest supersymmetric particle, which is stable for unbroken R-parity. In supersymmetric extensions of the standard model, in which the strong CP problem is solved via the Peccei-Quinn mechanism, the axino arises naturally as the fermionic superpartner of the axion. We compute the thermal production rate of axinos in supersymmetric QCD. Using hard thermal loop resummation, we obtain a finite result in a gauge-invariant way, which takes into account Debye screening in the hot quark-gluon-squark-gluino plasma. The relic axino abundance from thermal scatterings after inflation is evaluated. We find that thermally produced axinos could provide the dominant part of cold dark matter, for example, for an axino mass of 100 keV and a reheating temperature of 10^6 GeV.
description: 33 pages, 7 figures, 1 table, erratum added
ANOMALY DETECTION IN HYBRID CLOUD DATA PROCESSING
Creators: name: Rajendra Baleshwar*
name: Dr. Ramesh Vishwakarma
Publisher: name: Zenodo
Year: 2024
Subjects: cloud provider, data, protecting, privacy.

description: Abstract: The cloud is extensively utilized, yet it comes with its own set of concerns and threats to users' privacy. When compared to more conventional computer frameworks, the shared computing infrastructure known as the cloud presents a significant number of security vulnerabilities. It is never feasible to have complete faith in the cloud provider or tenants who store their data in a shared environment since there is always the possibility that they may leak data at any point of the compute process. Because of these problems with cloud computing, there is a requirement for a secure framework to carry out analytics activities, and cryptographic tools need to be developed in order to safeguard sensitive data while it is being stored and while it is in transit. The majority of companies have a dilemma when it comes to protecting large amounts of data while it is being stored.