cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Effect of subinhibitory concentrations on the spreading of the ampicillin resistance gene blaCMY-2 in an activated sludge microcosm
Creators: name: Basiry, Daniel
name: Kommedal, Roald
name: Kaster, Krista Michelle
Publisher: name: Taylor & Francis
Year: 2024
Subjects: subject: Space Science
subject: Microbiology
subject: FOS: Biological sciences
subject: Genetics
subject: Molecular Biology
subject: Biotechnology
subject: Environmental Sciences not elsewhere classified
subject: Chemical Sciences not elsewhere classified
subject: Ecology
subject: Biological Sciences not elsewhere classified
subject: Cancer
subject: Infectious Diseases
subject: FOS: Health sciences
subject: Virology

description: As the problem of multi-resistant bacteria grows a better understanding of the spread of antibiotic resistance genes is of utmost importance for society. Wastewater treatment plants contain subinhibitory concentrations of antibiotics and are thought to be hotspots for antibiotic resistance gene propagation. Here we evaluate the influence of sub-minimum inhibitory concentrations of antibiotics on the spread of resistance genes within the bacterial community in activated sludge laboratory-scale sequencing batch reactors. The mixed communities were fed two different ampicillin concentrations (500 and 5000 µg/L) and the reactors were run and monitored for 30 days. During the experiment the β-lactamase resistance gene blaCMY-2 was monitored via qPCR and DNA samples were taken to monitor the effect of ampicillin on the microbial community. The relative copy number of blaCMY-2 in the reactor fed with the sub-minimum inhibitory concentration of 500 µg/L ampicillin was spread out over a wider range of values than the control and 5000 µg/L ampicillin reactors indicating more variability of gene number in the 500 µg/L reactor. This result emphasises the problem of sub-minimum inhibitory concentrations of antibiotics in wastewater. High-throughput sequencing showed that continuous exposure to ampicillin caused a shift from a Bacteroidetes to Proteobacteria in the bacterial community. The combined use of qPCR and high-throughput sequencing showed that ampicillin stimulates the spread of resistance genes and leads to the propagation of microbial populations which are resistant to it.
Decay of turbulence generated by spin-down to rest in superfluid 4He
Creators: name: Walmsley, P. M.
name: Golov, A. I.
name: Hall, H. E.
name: Vinen, W. F.
name: Levchenko, A. A.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Other Condensed Matter (cond-mat.other)
subject: FOS: Physical sciences

description: We report on the extension of the experiments (P. M. Walmsley et al., Phys. Rev. Lett. 99, 265302 (2007)) on the decay of quasiclassical turbulence generated by an impulsive spin-down from angular velocity Omega to rest of superfluid 4He in a cubic container at temperatures 0.15 K - 1.6 K. The density of quantized vortex lines L is measured by scattering negative ions. Following the spin-down, the maximal density of vortices is observed after time t ~ 10 Omega^-1. By observing the propagation of ions along the axis of the initial rotation, the transient dynamics of the turbulence spreading from the perimeter of the container into its central region is investigated. Nearly homogeneous turbulence develops after time t ~ 100 Omega^-1 and decays as L proportional to t^(-3/2). The effective kinematic viscosity in T=0 limit is nu = 0.003 kappa, where kappa=10^-3 cm^2 / s is the circulation quantum.
description: To be published in the Journal of Low Temperature Physics. 17 pages, 10 figures
An Investigation of radiative proton-capture reactions in the Cd-In mass region
Creators: name: Vasileiou, P.
name: Mertzimekis, T. J.
name: Chalil, A.
name: Fakiola, C.
name: Karakasis, I.
name: Kotsovolou, A.
name: Pelonis, S.
name: Zyriliou, A.
name: Lagoyannis, A.
name: Axiotis, M.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Nuclear Experiment (nucl-ex)
subject: FOS: Physical sciences

description: The reaction network in the neutron-deficient part of the nuclear chart around $A \sim 100$ contains several nuclei of importance to astrophysical processes, such as the p-process. This work reports on the results from recent experimental studies of the radiative proton-capture reactions $^{112,114}\mathrm{Cd}(p,γ)^{113,115}\mathrm{In}$. Experimental cross sections for the reactions have been measured for proton beam energies residing inside the respective Gamow windows for each reaction, using isotopically enriched $^{112}\mathrm{Cd}$ and $^{114}\mathrm{Cd}$ targets. Two different techniques, the in-beam $γ$-ray spectroscopy and the activation method have been employed, with the latter considered necessary to account for the presence of low-lying isomers in $^{113}\mathrm{In}$ ($E_γ \approx 392$~keV, $t_{1/2} \approx 100$~min), and $^{115}\mathrm{In}$ ($E_γ \approx 336$~keV, $t_{1/2} \approx 4.5$~h). Following the measurement of the total reaction cross sections, the astrophysical S factors have been additionally deduced. The experimental results are compared with Hauser-Feshbach theoretical calculations carried out with the most recent version of TALYS. The results are discussed in terms of their significance to the various parameters entering the models.
description: 17 pages, 9 figures, accepted for publication in Nuclear Physics, Section A. arXiv admin note: text overlap with arXiv:1905.13199
Atom chip for BEC interferometry
Creators: name: Sewell, R. J.
name: Dingjan, J.
name: Baumgartner, F.
name: Llorente-Garcia, I.
name: Eriksson, S.
name: Hinds, E. A.
name: Lewis, G.
name: Srinivasan, P.
name: Moktadir, Z.
name: Gollasch, C. O.
name: Kraft, M.
Publisher: name: arXiv
Year: 2009
Subjects: subject: Quantum Physics (quant-ph)
subject: Atomic Physics (physics.atom-ph)
subject: FOS: Physical sciences

description: We have fabricated and tested an atom chip that operates as a matter wave interferometer. In this communication we describe the fabrication of the chip by ion-beam milling of gold evaporated onto a silicon substrate. We present data on the quality of the wires, on the current density that can be reached in the wires and on the smoothness of the magnetic traps that are formed. We demonstrate the operation of the interferometer, showing that we can coherently split and recombine a Bose-Einstein condensate with good phase stability.
description: 9 pages, 5 figures
Limit Cycles and Chaos Induced by a Nonlinearity with Memory
Creators: name: Peters, K. J. H.
name: Rodriguez, S. R. K.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Optics (physics.optics)
subject: Chaotic Dynamics (nlin.CD)
subject: Applied Physics (physics.app-ph)
subject: Classical Physics (physics.class-ph)
subject: FOS: Physical sciences

description: Inspired by the observation of a distributed time delay in the nonlinear response of an optical resonator, we investigate the effects of a similar delay on a noise-driven mechanical oscillator. For a delay time that is commensurate with the inverse dissipation rate, we find stable limit cycles. For longer delays, we discover a regime of chaotic dynamics associated with a double scroll attractor. We also analyze the effects of time delay on the spectrum and oscillation amplitude of the oscillator. Our results point to new opportunities for nonlinear energy harvesting, provided that a nonlinearity with distributed time delay can be implemented in mechanical systems.
description: 4 figures, 7 pages
High-Speed Laser Processing of Thin Single and Multi-Layer Films
Creators: name: Lutey, Adrian Hugh Alexander <1986>
Publisher: name: Alma Mater Studiorum - Università di Bologna
Year: 2013
Subjects: ING-IND/08 Macchine a fluido

description: Theoretical models are developed for the continuous-wave and pulsed laser incision and cut of thin single and multi-layer films. A one-dimensional steady-state model establishes the theoretical foundations of the problem by combining a power-balance integral with heat flow in the direction of laser motion. In this approach, classical modelling methods for laser processing are extended by introducing multi-layer optical absorption and thermal properties. The calculation domain is consequently divided in correspondence with the progressive removal of individual layers. A second, time-domain numerical model for the short-pulse laser ablation of metals accounts for changes in optical and thermal properties during a single laser pulse. With sufficient fluence, the target surface is heated towards its critical temperature and homogeneous boiling or "phase explosion" takes place. Improvements are seen over previous works with the more accurate calculation of optical absorption and shielding of the incident beam by the ablation products. A third, general time-domain numerical laser processing model combines ablation depth and energy absorption data from the short-pulse model with two-dimensional heat flow in an arbitrary multi-layer structure. Layer removal is the result of both progressive short-pulse ablation and classical vaporisation due to long-term heating of the sample. At low velocity, pulsed laser exposure of multi-layer films comprising aluminium-plastic and aluminium-paper are found to be characterised by short-pulse ablation of the metallic layer and vaporisation or degradation of the others due to thermal conduction from the former. At high velocity, all layers of the two films are ultimately removed by vaporisation or degradation as the average beam power is increased to achieve a complete cut. The transition velocity between the two characteristic removal types is shown to be a function of the pulse repetition rate. An experimental investigation validates the simulation results and provides new laser processing data for some typical packaging materials.
A Streamwise Constant Model of Turbulence in Plane Couette Flow
Creators: name: Gayme, D. F.
name: McKeon, B. J.
name: Papachristodoulou, A.
name: Bamieh, B.
name: Doyle, J. C.
Publisher: name: arXiv
Year: 2010
Subjects: subject: Fluid Dynamics (physics.flu-dyn)
subject: FOS: Physical sciences

description: Streamwise and quasi-streamwise elongated structures have been shown to play a significant role in turbulent shear flows. We model the mean behavior of fully turbulent plane Couette flow using a streamwise constant projection of the Navier Stokes equations. This results in a two-dimensional, three velocity component ($2D/3C$) model. We first use a steady state version of the model to demonstrate that its nonlinear coupling provides the mathematical mechanism that shapes the turbulent velocity profile. Simulations of the $2D/3C$ model under small amplitude Gaussian forcing of the cross-stream components are compared to DNS data. The results indicate that a streamwise constant projection of the Navier Stokes equations captures salient features of fully turbulent plane Couette flow at low Reynolds numbers. A system theoretic approach is used to demonstrate the presence of large input-output amplification through the forced $2D/3C$ model. It is this amplification coupled with the appropriate nonlinearity that enables the $2D/3C$ model to generate turbulent behaviour under the small amplitude forcing employed in this study.
description: Journal of Fluid Mechanics 2010, in press
Microcystins are present in water treatment plant residuals and are impacted by extraction and quantification methodology
Creators: name: van Dommelen, Emma
name: Rosiers, Lillian Des
name: Crafton, Elizabeth
name: Hull, Natalie M.
Publisher: name: Taylor & Francis
Year: 2024
Subjects: subject: Medicine
subject: Environmental Sciences not elsewhere classified
subject: Chemical Sciences not elsewhere classified
subject: Ecology
subject: FOS: Biological sciences
subject: Immunology
subject: FOS: Clinical medicine
subject: Biological Sciences not elsewhere classified
subject: Cancer
subject: Inorganic Chemistry
subject: FOS: Chemical sciences
subject: Infectious Diseases
subject: FOS: Health sciences
subject: Plant Biology
subject: Virology

description: Microcystins (MCs), a toxin produced by some species of the photosynthetic autotrophic cyanobacteria, are the most studied and monitored cyanotoxin in water. Water treatment plant (WTP) residuals are the byproduct of water treatment consisting of solids removed from WTP processes and have been shown to contain cyanobacterial cells. However, the presence of MCs in WTP residuals has not been systematically demonstrated. Samples from four different WTPs across the United States were used to quantify MCs in residuals while assessing extraction and quantification methods adapted from water samples for solid matrices. MCs were present in 100% of samples. MC-LA was the most prevalent variant in these samples (70.05% of MCs quantified by UPLC-PDA). Natural degradation observed in a WTP storage lagoon was also investigated to determine the impact of physical, chemical, and biological processes on MC concentrations in high-biomass residuals. This study demonstrates that residuals of various characteristics across the United States contain MCs, and no one method was found to maximize results consistently across all samples. Cyanotoxins accumulating in WTP residuals are a growing concern. Implications of this work can help regulations and future studies of potential reuse applications and understanding of potential ecological significance of MCs accumulating in WTP residuals. Microcystins are present in various water treatment plant residuals.Variability in residuals content impacts toxin determination.There is no optimal method for determining microcystin content in solids. Microcystins are present in various water treatment plant residuals. Variability in residuals content impacts toxin determination. There is no optimal method for determining microcystin content in solids.
Coelichneumon desinatorius
Creators: name: Riedel
name: Pénigot
name: Schwarz
name: Diller
name: Johansson
name: Japoshvili, G.
Publisher: name: Zenodo
Year: 2023
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Hymenoptera
Ichneumonidae
Coelichneumon
Coelichneumon desinatorius

description: Coelichneumon desinatorius (THUNBERG, 1822)
M a t e r i a l e x a m i n e d: Trap7: 1♀ 5-19.x.; trap 2: 1♀ 1-15.vi.; trap 4: 1♁ 20.iv.-5.v., 1♁ 1-15.vi.; trap 15: 2♀♀ 14-28.vii., 1♀ 2♁♁ 20.viii.-22.ix.
D i s t r i b u t i o n: Transpalaearctic, known from Azerbaijan (ALIEV 1988, ALIYEV 1999), new record for Georgia.
description: Published as part of Riedel, Pénigot, Schwarz, Diller, Johansson & Japoshvili, G., 2023, Darwin wasps (Hymenoptera, Ichneumonidae) of the Kintrishi National Park, Sakartvelo (Georgia), with descriptions of six new species, pp. 61-153 in Linzer biologische Beiträge 55 (1) on page 99, DOI: 10.5281/zenodo.10415120
Det Centrale Virksomhedsregister
Creators: Erhvervsstyrelsen
Erhvervs- og Selvskabsstyrelsen
Told- og Skattestyrelsen
Skat
Danmarks Statistik
Publisher: name: Rigsarkivet
Year: 2022

description: Det centrale virksomhedsregister (CVR)
CVR er statens stamregister for virksomhedsoplysninger og indeholder oplysninger om alle registrerede virksomheder i Danmark.
Erhvervsstyrelsen ejer CVR, og er ansvarlig for registrering heri, samt vedligeholdelse og udvikling af registret.
Coelichneumon dubius
Creators: name: Riedel
name: Pénigot
name: Schwarz
name: Diller
name: Johansson
name: Japoshvili, G.
Publisher: name: Zenodo
Year: 2023
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Hymenoptera
Ichneumonidae
Coelichneumon
Coelichneumon dubius

description: Coelichneumon dubius (TISCHBEIN, 1876)
M a t e r i a l e x a m i n e d: Trap 2: 1♀ 1-15.vi.; trap 4: 1♀ 24.viii.-7.ix.; trap 7: 1♁ 20.v.-1.vi., 1♀ 21.ix.-5.x.; trap 8: 2♁♁ 15-29.vi.
D i s t r i b u t i o n: Transpalaearctic, new record for Georgia and the Caucasus region.
description: Published as part of Riedel, Pénigot, Schwarz, Diller, Johansson & Japoshvili, G., 2023, Darwin wasps (Hymenoptera, Ichneumonidae) of the Kintrishi National Park, Sakartvelo (Georgia), with descriptions of six new species, pp. 61-153 in Linzer biologische Beiträge 55 (1) on page 99, DOI: 10.5281/zenodo.10415120
Backpropagation and fuzzy algorithm Modelling to Resolve Blood Supply Chain Issues in the Covid-19 Pandemic
Creators: name: Erlansari, Aan
name: Effendi, Rusdi
name: C, Funny Farady
name: Wijanarko, Andang
name: Susilo, Boko
name: Hardiansyah, Reza
Publisher: name: arXiv
Year: 2021
Subjects: subject: Machine Learning (cs.LG)
subject: Artificial Intelligence (cs.AI)
subject: Computers and Society (cs.CY)
subject: Information Theory (cs.IT)
subject: FOS: Computer and information sciences

description: Bloodstock shortages and its uncertain demand has become a major problem for all countries worldwide. Therefore, this study aims to provide solution to the issues of blood distribution during the Covid-19 Pandemic at Bengkulu, Indonesia. The Backpropagation algorithm was used to improve the possibility of discovering available and potential donors. Furthermore, the distances, age, and length of donation were measured to obtain the right person to donate blood when it needed. The Backpropagation uses three input layers to classify eligible donors, namely age, body, weight, and bias. In addition, the system through its query automatically counts the variables via the Fuzzy Tahani and simultaneously access the vast database.
Catalytic processes for the transformation of ethanol into acetonitrile
Creators: name: Folco, Federico <1983>
Publisher: name: Alma Mater Studiorum - Università di Bologna
Year: 2013
Subjects: CHIM/04 Chimica industriale

description: This thesis deals with the transformation of ethanol into acetonitrile. Two approaches are investigated: (a) the ammoxidation of ethanol to acetonitrile and (b) the amination of ethanol to acetonitrile. The reaction of ethanol ammoxidation to acetonitrile has been studied using several catalytic systems, such as vanadyl pyrophosphate, supported vanadium oxide, multimetal molibdates and antimonates. The main conclusions are: (I) The surface acidity must be very low, because acidity catalyzes several undesired reactions, such as the formation of ethylene, and of heavy compounds as well. (II) Supported vanadium oxide is the catalyst showing the best catalytic behaviour, but the role of the support is of crucial importance. (III) Both metal molybdates and antimonates show interesting catalytic behaviour, but are poorly active, and probably require harder conditions than those used with the V oxide-based catalysts. (IV) One key point in the reaction network is the rate of reaction between acetaldehyde (the first intermediate) and ammonia, compared to the parallel rates of acetaldehyde transformation into by-products (CO, CO2, HCN, heavy compounds).
Concerning the non-oxidative process, two possible strategies are investigated: (a) the ethanol ammonolysis to ethylamine coupled with ethylamine dehydrogenation, and (b) the direct non-reductive amination of ethanol to acetonitrile. Despite the good results obtained in each single step, the former reaction does not lead to good results in terms of yield to acetonitrile. The direct amination can be catalyzed with good acetonitrile yield over catalyst based on supported metal oxides. Strategies aimed at limiting catalyst deactivation have also been investigated.
Collisional Energy Loss of a Fast Parton in a QGP
Creators: name: Peigne, Stephane
Publisher: name: arXiv
Year: 2008
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: The suppression of hadron p_T spectra in high energy central heavy-ion collisions compared to proton-proton collisions, referred to as 'jet-quenching', is currently attributed to partonic energy loss in the hot medium created in the collision. The RHIC experiments show that at large enough p_T, hadron quenching is strong, and of similar magnitude for light and heavy flavours. This point is difficult to understand in a parton energy loss scenario, where the energy loss is believed to be dominantly radiative, and quantitatively different for light partons and heavy quarks: gluon radiation off a heavy quark is suppressed at small angles - within the so-called dead cone - and a heavy quark suffers less radiative energy loss than a light parton. In this context it is important to reconsider the collisional contribution to partonic energy loss. Although it seems difficult to see how collisional losses could substantially increase heavy flavour quenching without simultaneously increasing light hadron quenching, it is theoretically important to establish correct results for the heavy quark collisional energy loss.
description: 10 pages, Talk presented at the Joint Meeting Heidelberg-Liege-Paris-Wroclaw (HLPW08), 6-8 March, 2008, Spa, Belgium
Intrinsic RESET speed limit of valence change memories
Creators: name: von Witzleben, Moritz
name: Wiefels, Stefan
name: Kindsmüller, Andreas
name: Stasner, Pascal
name: Berg, Fenja
name: Cüppers, Felix
name: Hoffmann-Eifert, Susanne
name: Waser, Rainer
name: Menzel, Stephan
name: Böttger, Ulrich
Publisher: name: arXiv
Year: 2021
Subjects: subject: Applied Physics (physics.app-ph)
subject: FOS: Physical sciences

description: During the last decade, valence change memory (VCM) has been extensively studied due to its promising features, such as a high endurance and fast switching times. The information is stored in a high resistive state (logcial '0', HRS) and a low resistive state (logcial '1', LRS). It can also be operated in two different writing schemes, namely a unipolar switching mode (LRS and HRS are written at the same voltage polarity) and a bipolar switching mode (LRS and HRS are written at opposite voltage polarities). VCM, however, still suffers from a large variability during writing operations and also faults occur, which are not yet fully understood and, therefore, require a better understanding of the underlying fault mechanisms. In this study, a new intrinsic failure mechanism is identified, which prohibits RESET times (transition from LRS to HRS) faster than 400 ps and possibly also limits the endurance. We demonstrate this RESET speed limitation by measuring the RESET kinetics of two valence change memory devices (namely Pt/TaO$_\mathrm{x}$/Ta and Pt/ZrO$_\mathrm{x}$/Ta) in the time regime from 50 ns to 50 ps, corresponding to the fastest writing time reported for VCM. Faster RESET times were achieved by increasing the applied pulse voltage. Above a voltage threshold it was, however, no longer possible to reset both types of devices. Instead a unipolar SET (transition from HRS to LRS) event occurred, preventing faster RESET times. The occurrence of the unipolar SET is attributed to an oxygen exchange at the interface to the Pt~electrode, which can be suppressed by introducing an oxygen blocking layer at this interface, which also allowed for 50 ps fast RESET times.
description: 27 pages, 18 figures and 69 references
Coelichneumon falsificus
Creators: name: Riedel
name: Pénigot
name: Schwarz
name: Diller
name: Johansson
name: Japoshvili, G.
Publisher: name: Zenodo
Year: 2023
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Hymenoptera
Ichneumonidae
Coelichneumon
Coelichneumon falsificus

description: Coelichneumon falsificus (W ESMAEL, 1845)
M a t e r i a l e x a m i n e d: Trap 7: 1♁ 1-25.vi., 1♁ 10-24.viii., 1♀ 5-19.x., 1♀ 19.x.-3.xi.; trap 15: 1♁ 14-28.vii.
Remark: One♀ has a black hind edge of pronotum.
D i s t r i b u t i o n: Transpalaearctic, known from Azerbaijan (ALIYEV 1999), new record for Georgia.
description: Published as part of Riedel, Pénigot, Schwarz, Diller, Johansson & Japoshvili, G., 2023, Darwin wasps (Hymenoptera, Ichneumonidae) of the Kintrishi National Park, Sakartvelo (Georgia), with descriptions of six new species, pp. 61-153 in Linzer biologische Beiträge 55 (1) on page 99, DOI: 10.5281/zenodo.10415120
The Concepts of "Age" and "Universality" in Cosmic Ray Showers
Creators: name: Lipari, Paolo
Publisher: name: arXiv
Year: 2008
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: The concept of "age" as a parameter for the description of the state of development of high energy showers in the atmosphere has been in use in cosmic ray studies for several decades. In this work we briefly discuss how this concept, originally introduced to describe the average behavior of electromagnetic cascades, can be fruitfully applied to describe individual showers generated by primary particles of different nature, including protons, nuclei and neutrinos. Showers with the same age share three different important properties: (i) their electron size has the same fractional rate of change with increasing depth, (ii) the bulk of the electrons and photons in the shower (excluding high energy particles) have energy spectra with shapes and relative normalization uniquely determined by the age parameter, (iii) the electrons and photons in the shower have also the same angular and lateral distributions sufficiently far from the shower axis. In this work we discuss how the properties associated with the shower age can be understood with simple arguments, and how the shapes of the electron and photon spectra and the relative normalization that correspond to a certain age can be calculated analytically.
description: 27 pages, 10 figures
The Close-Limit Approximation for Black Hole Binaries with Post-Newtonian Initial Conditions
Creators: name: Tiec, Alexandre Le
name: Blanchet, Luc
Publisher: name: arXiv
Year: 2009
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: The ringdown phase of a black hole formed from the merger of two orbiting black holes is described by means of the close-limit (CL) approximation starting from second-post-Newtonian (2PN) initial conditions. The 2PN metric of point-particle binaries is formally expanded in CL form and identified with that of a perturbed Schwarzschild black hole. The multipolar coefficients describing the even-parity (polar) and odd-parity (axial) components of the linear perturbation consistently satisfy the 2PN-accurate perturbative field equations. We use these coefficients to build initial conditions for the Regge-Wheeler and Zerilli wave equations, which we then evolve numerically. The ringdown waveform is obtained in two cases: head-on collision with zero-angular momentum, composed only of even modes, and circular orbits, for which both even and odd modes contribute. In a separate work, this formalism is applied to the study of the gravitational recoil produced during the ringdown phase of coalescing binary black holes.
description: 34 pages, 6 figures; to appear in Class. Quant. Grav
Empowering Citizens by a Blockchain-Based Robinson List
Creators: name: Cirillo, Albenzio
name: Dalena, Vito
name: Mauro, Antonio
name: Mogavero, Francesco
name: Pennino, Diego
name: Pizzonia, Maurizio
name: Vitaletti, Andrea
name: Zecchini, Marco
Publisher: name: arXiv
Year: 2021
Subjects: subject: Cryptography and Security (cs.CR)
subject: Networking and Internet Architecture (cs.NI)
subject: FOS: Computer and information sciences

description: A Robinson list protects phone subscribers against commercial spam calls. Its least basic functionality is to collect the denial of the subscribers to be contacted by market operators. Nowadays, Robinson lists run as centralised services, which implies that citizens should trust third parties for the management of their choices. In this paper, we show a design that allows us to realise a Robinson list as a decentralised service. Our work leverages the experience developed by Fondazione Ugo Bordoni as the manager of the Italian Robinson list. We present a general solution and a proof-of-concept (PoC) adopting the Algorand technology. We evaluate the performances of our PoC in terms of its scalability and of the latency perceived by the involved actors. We also discuss aspects related to identity management and privacy.
description: This article has been accepted for publication in International Journal of Computers and Applications, published by Taylor & Francis
The evolution of structural characteristics and redox properties of humin during the composting of sludge and corn straw
Creators: name: Chang, Haoyu
name: Sun, Xiaojie
name: Zhang, Hongxia
name: Tan, Zhihan
name: Xi, Beidou
name: Xing, Meiyan
name: Dong, Bin
name: Zhu, Hongxiang
Publisher: name: Taylor & Francis
Year: 2024
Subjects: subject: Biochemistry
subject: Microbiology
subject: FOS: Biological sciences
subject: Pharmacology
subject: Environmental Sciences not elsewhere classified
subject: Chemical Sciences not elsewhere classified

description: Humins (HMs), the insoluble faction of humic substances (HSs), play a pivotal role in the bioremediation of pollutants by acting as electron shuttles that modulate the interactions between microorganisms and pollutants. This crucial function is intricately linked to their structural composition and electron transfer capabilities. However, the dynamics of the electron transfer capacity (ETC) of HM extracted during the composting process and its determinants have yet to be fully elucidated. This study undertakes a comprehensive analysis of the ETC of HM derived from composting, employing electrochemical techniques alongside spectroscopic methods and elemental analysis to explore the influencing factors, including the electron accepting capacity (EAC), electron donating capacity (EDC), and electron reversible rate (ERR). Our findings reveal substantial variations in the EAC and EDC of HM throughout the composting process, with EAC values ranging from 133.03–220.98 μmol e− gC−1 and EDC values from 111.17–229.33 μmol e− gC−1. Notably, the composting process enhances the ERR and EDC of HM while diminishing their EAC. This shift is accompanied by an augmented presence of aromatic structures, polar functional groups, quinones, and nitrogen – and sulfur-containing moieties, thereby boosting the HM's EDC. Conversely, the reduction in EAC is associated with a decline in lignin carbon content and the abundance of oxygen-containing moieties, as well as the diminishment of visible fulvic-like and protein-like substances within HM. Importantly, humic-like substances and nitrogen-containing moieties within HM demonstrated the capacity for repeated electron transfer, underscoring their significance in the context of environmental remediation.
The Bicomplex Quantum Harmonic Oscillator
Creators: name: Lavoie, Raphael Gervais
name: Marchildon, Louis
name: Rochon, Dominic
Publisher: name: arXiv
Year: 2010
Subjects: subject: Mathematical Physics (math-ph)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: The problem of the quantum harmonic oscillator is investigated in the framework of bicomplex numbers, which are pairs of complex numbers making up a commutative ring with zero divisors. Starting with the commutator of the bicomplex position and momentum operators, and adapting the algebraic treatment of the standard quantum harmonic oscillator, we find eigenvalues and eigenkets of the bicomplex harmonic oscillator Hamiltonian. We construct an infinite-dimensional bicomplex module from these eigenkets. Turning next to the differential equation approach, we obtain coordinate-basis eigenfunctions of the bicomplex harmonic oscillator Hamiltonian in terms of hyperbolic Hermite polynomials.
description: Figures suppressed. To appear in Nuovo Cimento B
Erhvervsbeskæftigelsen 2013
Creators: Danmarks Statistik
Publisher: name: Rigsarkivet
Year: 2022

description: Formålet med Erhvervsbeskæftigelsen er at udarbejde en årlig regionalt fordelt statistik over antal arbejdssteder, der er aktive ultimo november i det aktuelle tællingsår og hvortil der kan knyttes beskæftigelse ultimo november.
Spatial Asymmetric Two dimensional Continuous Abelian Sandpile Model
Creators: name: Azimi-Tafreshi, N.
name: Dashti-Naserabadi, H.
name: Moghimi-Araghi, S.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: We insert some asymmetries in the continuous Abelian sandpile models, such as directedness and ellipticity. We analyze probability distribution of different heights and also find the field theory corresponding to the models. Also we find the fields associated with some height variables.
description: 14 Pages, 11 Figures
Detection of Substructures in Young Transition Disk WL 17
Creators: name: Gulick, Hannah
name: Sadavoy, Sarah
name: Matra, Luca
name: Sheehan, Patrick
name: van der Marel, Nienke
Publisher: name: arXiv
Year: 2021
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: WL 17 is a young transition disk in the Ophiuchus L1688 molecular cloud complex. Even though WL 17 is among the brightest disks in L1688 and massive enough to expect dust self-scattering, it was undetected in polarization down to ALMA's instrument sensitivity limit. Such low polarization fractions could indicate unresolved polarization within the beam or optically thin dust emission. We test the latter case by combining the high sensitivity 233 GHz Stokes I data from the polarization observations with previous ALMA data at 345 GHz and 100 GHz. We use simple geometric shapes to fit the observed disk visibilities in each band. Using our simple models and assumed dust temperature profiles, we estimate the optical depth in all three bands. The optical depth at 233 GHz peaks at $τ_{233} \sim 0.3$, which suggests the dust emission may not be optically thick enough for dust self-scattering to be efficient. We also find the higher sensitivity 233 GHz data show substructure in the disk for the first time. The substructure appears as brighter lobes along the major axis, on either side of the star. We attempt to fit the lobes with a simple geometric model, but they are unresolved in the 233 GHz data. We propose that the disk may be flared at 1 mm such that there is a higher column of dust along the major axis than the minor axis when viewed at an inclination. These observations highlight the strength of high sensitivity continuum data from dust polarization observations to study disk structures.
description: Accepted to ApJ, 13 pages, 6 figures
Erhvervsbeskæftigelsen 2014
Creators: Danmarks Statistik
Publisher: name: Rigsarkivet
Year: 2022

description: Formålet med Erhvervsbeskæftigelsen er at udarbejde en årlig regionalt fordelt statistik over antal arbejdssteder, der er aktive ultimo november i det aktuelle tællingsår og hvortil der kan knyttes beskæftigelse ultimo november.
GASP and MaNGA surveys shed light on the enigma of the gas metallicity gradients in disk galaxies
Creators: name: Franchetto, Andrea
name: Mingozzi, Matilde
name: Poggianti, Bianca M.
name: Vulcani, Benedetta
name: Bacchini, Cecilia
name: Gullieuszik, Marco
name: Moretti, Alessia
name: Tomicic, Neven
name: Fritz, Jacopo
Publisher: name: arXiv
Year: 2021
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: Making use of both MUSE observations of 85 galaxies from the survey GASP (GAs Stripping Phenomena in galaxies with MUSE) and a large sample from MaNGA (Mapping Nearby Galaxies at Apache Point Observatory survey) we investigate the distribution of gas metallicity gradients as a function of stellar mass, for local cluster and field galaxies. Overall, metallicity profiles steepen with increasing stellar mass up to $10^{10.3}\,{\rm M_\odot}$ and flatten out at higher masses. Combining the results from the metallicity profiles and the stellar mass surface density gradients, we propose that the observed steepening is a consequence of local metal enrichment due to in-situ star formation during the inside-out formation of disk galaxies. The metallicity gradient-stellar mass relation is characterized by a rather large scatter, especially for $10^{9.8}
description: Accepted for pubblication in ApJ. 25 pages, 11 figures, and 2 tables
A Game Theoretic Analysis of Incentives in Content Production and Sharing over Peer-to-Peer Networks
Creators: name: Park, Jaeok
name: van der Schaar, Mihaela
Publisher: name: arXiv
Year: 2009
Subjects: subject: Networking and Internet Architecture (cs.NI)
subject: Computer Science and Game Theory (cs.GT)
subject: FOS: Computer and information sciences

description: User-generated content can be distributed at a low cost using peer-to-peer (P2P) networks, but the free-rider problem hinders the utilization of P2P networks. In order to achieve an efficient use of P2P networks, we investigate fundamental issues on incentives in content production and sharing using game theory. We build a basic model to analyze non-cooperative outcomes without an incentive scheme and then use different game formulations derived from the basic model to examine five incentive schemes: cooperative, payment, repeated interaction, intervention, and enforced full sharing. The results of this paper show that 1) cooperative peers share all produced content while non-cooperative peers do not share at all without an incentive scheme; 2) a cooperative scheme allows peers to consume more content than non-cooperative outcomes do; 3) a cooperative outcome can be achieved among non-cooperative peers by introducing an incentive scheme based on payment, repeated interaction, or intervention; and 4) enforced full sharing has ambiguous welfare effects on peers. In addition to describing the solutions of different formulations, we discuss enforcement and informational requirements to implement each solution, aiming to offer a guideline for protocol designers when designing incentive schemes for P2P networks.
description: 31 pages, 3 figures, 1 table
General occurrence of exophylactic and necrophylactic periderms and non-suberized impervious tissues in woody plants
Creators: name: Soo, Benjamin Vui Ling
Publisher: name: University of British Columbia
Year: 2010

description: The intent of this thesis is to determine whether the new concepts of necrophylactic and exophylactic periderms proposed by Mullick from studies of four species of conifers are generally valid in woody plants, and whether the non-suberized impervious tissue (NIT) recently discovered by him is a prerequisite to the formation of necrophyl actic periderms. Studies of 10 species of conifers with representatives from all coniferous families indigenous to North America and 5 species of deciduous trees by cryofixation technique of Mullic showed the general validity of the necrophylactic and exophylactic periderm concept, the general occurrence of NIT and the invariable presence of NIT prior to necrophylactic periderm formation, establishing NIT as a pre-requisite to necrophylactic periderm format ion. Characterization of periderms in the 15 species showed that, within a species, they could be classified into two categories and that when so categorized, all periderms within a species fulfilled the criteria for either the exophylactic or necrophylactic category, thus establishing the general validity of the concept. Non-suberized impervious tissue (NIT) was found to be present in each species studied. Developmental studies of NIT in Pinus contorta and Larix occidental is, and characterization of NIT in all species, revealed common features in NIT development and features at all sites of its formation in all species studied. Necrophylactic periderm was invariably associated with NIT and was only found after NIT formation. Investigation of the chemical nature of NIT indicated that gymnosperm lignin, or closely related compounds are most likely responsible for the imperviousness. Implications of the role of NIT and necrophylactic periderm formation in pathogenesis as proposed by Mulliek are discussed in relation to the now widely established occurrence of them.
Lagrangian Formulations of Self-dual Gauge Theories in Diverse Dimensions
Creators: name: Chen, Wei-Ming
name: Ho, Pei-Ming
Publisher: name: arXiv
Year: 2010
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: In this work, we study Lagrangian formulations for self-dual gauge theories, also known as chiral $n$-form gauge theories, for $n = 2p$ in $D = 4p+2$ dimensional spacetime. Motivated by a recent formulation of M5-branes derived from the BLG model, we generalize the earlier Lagrangian formulation based on a decomposition of spacetime into $(D-1)$ dimensions plus a special dimension, to construct Lagrangian formulations based on a generic decomposition of spacetime into $D'$ and $D" = D - D'$ dimensions. Although the Lorentz symmetry is not manifest, we prove that the action is invariant under modified Lorentz transformations.
description: 27 pages, the modified Lorentz transformation rule revised, minor modifications
Diseño e implementación de la arquitectura de la información para el desarrollo del Repositorio Nacional de Angola
Creators: name: United Nations Educational, Scientific and Cultural Organization
name: Ministério Do Ensino Superior, Ciência
name: Redalyc-Universidad Autónoma Del Estado De México
name: AmeliCA
name: Universidade Óscar Ribas
Publisher: name: Zenodo
Year: 2022
Subjects: Acceso Abierto
Angola
África
Repositorio Nacional de Angola
Software abierto
Divulgación científica y tecnológica

description: Trabajo derivado del proyecto de colaboración entre Redalyc UAEM, AmeliCA, MESCTI y U. Óscar Ribas financiado por UNESCO para el desarrollo de una estrategia de Acceso Abierto en Angola. Vol. 26 de 38
description: {"references": ["Barton, Mary; Waters, Margaret. Creating an institutional repository. Cambridge: MIT Libraries, 2004. [Fecha de consulta: 1 septiembre de 2021]. Disponible en: http://hdl.handle.net/1721.1/26698", "Bustos, Atilio; Fern\u00e1ndez, Antonio. Directrices para la creaci\u00f3n de repositorios institucionales en universidades y organizaciones de educaci\u00f3n superior [en l\u00ednea]. 17 Valpara\u00edso: Ediciones Universitarias de Valpara\u00edso, 2007. [Fecha de consulta: 1 de septiembre de 2021]. Disponible en: http://eprints.rclis.org/13512/1/Directrices_RI_Espa_ol.pdf", "The Open Archives Initiative Protocol for Metadata Harvesting [en l\u00ednea]. 2015. [fecha de consulta: 1 de septiembre de 2021]. Disponible en: http://www.openarchives.org/OAI/openarchivesprotocol.html"]}
Decay of multiply charged vortices at nonzero temperatures
Creators: name: Karpiuk, Tomasz
name: Brewczyk, Miroslaw
name: Gajda, Mariusz
name: Rzazewski, Kazimierz
Publisher: name: arXiv
Year: 2008
Subjects: subject: Other Condensed Matter (cond-mat.other)
subject: FOS: Physical sciences

description: We study the instability of multiply charged vortices in the presence of thermal atoms and find various scenarios of splitting of such vortices. The onset of the decay of a vortex is always preceded by the increase of a number of thermal (uncondensed) atoms in the system and manifests itself by the sudden rise of the amplitude of the oscillations of the quadrupole moment. Our calculations show that the decay time gets shorter when the multiplicity of a vortex becomes higher.
description: 4 pages, 6 figures
Entropy of Black-Branes System and T-Duality
Creators: name: Huang, Wung-Hong
Publisher: name: arXiv
Year: 2009
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: A general black-branes system under the T-duality transformation will become another smeared system with different dimensional black branes. We first use some simple examples to see that both systems have a same value of entropy and then present a rigorous method to prove this general property. Using the property we could easily know the entropy of some complex black-brane systems.
description: Latex file, 6 pages, mention smeared brane
Horizons in de-Sitter Supergravity
Creators: name: Grover, J.
name: Gutowski, J.
Publisher: name: arXiv
Year: 2010
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We classify all pseudo-supersymmetric extremal near-horizon geometries in minimal five-dimensional de-Sitter supergravity. It is shown that the only such near-horizon geometry is the near-horizon geometry of the de-Sitter BMPV solution, and hence there are no regular extremal pseudo-supersymmetric asymptotically de-Sitter black rings.
description: 26 pages, latex. Minor typos in equations (4.16) and (6.12) corrected
Rotation Curves in z~1-2 Star-Forming Disks: Comparison of Dark Matter Fractions and Disk Properties for Different Fitting Methods
Creators: name: Price, S. H.
name: Shimizu, T. T.
name: Genzel, R.
name: Übler, H.
name: Schreiber, N. M. Förster
name: Tacconi, L. J.
name: Davies, R. I.
name: Coogan, R. T.
name: Lutz, D.
name: Wuyts, S.
name: Wisnioski, E.
name: Nestor, A.
name: Sternberg, A.
name: Burkert, A.
name: Bender, R.
name: Contursi, A.
name: Davies, R. L.
name: Herrera-Camus, R.
name: Lee, M. -J.
name: Naab, T.
name: Neri, R.
name: Renzini, A.
name: Saglia, R.
name: Schruba, A.
name: Schuster, K.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: We present a follow-up analysis examining the dynamics and structures of 41 massive, large star-forming galaxies at z~0.67-2.45 using both ionized and molecular gas kinematics. We fit the galaxy dynamics with models consisting of a bulge, a thick, turbulent disk, and a NFW dark matter halo, using code that fully forward models the kinematics, including all observational and instrumental effects. We explore the parameter space using Markov Chain Monte Carlo (MCMC) sampling, including priors based on stellar and gas masses and disk sizes. We fit the full sample using extracted 1D kinematic profiles. For a subset of 14 well-resolved galaxies, we also fit the 2D kinematics. The MCMC approach robustly confirms the results from least-squares fitting presented in Paper I (Genzel et al. 2020): the sample galaxies tend to be baryon-rich on galactic scales (within one effective radius). The 1D and 2D MCMC results are also in good agreement for the subset, demonstrating that much of the galaxy dynamical information is captured along the major axis. The 2D kinematics are more affected by the presence of non-circular motions, which we illustrate by constructing a toy model with constant inflow for one galaxy that exhibits residual signatures consistent with radial motions. This analysis, together with results from Paper I and other studies, strengthens the finding that massive, star-forming galaxies at z~1-2 are baryon-dominated on galactic scales, with lower dark matter fractions towards higher baryonic surface densities. Finally, we present details of the kinematic fitting code used in this analysis.
description: Accepted for publication in ApJ (23 pages, 8 figures, 5 tables)
Antioxidative, glucose management, and muscle protein synthesis properties of fish protein hydrolysates and peptides
Creators: name: Shekoohi, Niloofar
name: Carson, Brian
name: Fitzgerald, Richard
Publisher: name: University of Limerick
Year: 2024
Subjects: classificationCode: 31
subject: Biological sciences
subject: FOS: Biological sciences
classificationCode: 4207
subject: Sports science and exercise

description: The marine environment is an excellent source for many physiologically active compounds due to its extensive biodiversity. Among these, fish proteins stand out for their unique qualities, making them valuable in a variety of applications due to their diverse compositional and functional properties. Utilizing fish and fish coproducts for the production of protein hydrolysates and bioactive peptides not only enhances their economic value but also reduces their potential environmental harm, if left unutilized. Fish protein hydrolysates (FPHs), known for their excellent nutritional value, favorable amino acid profiles, and beneficial biological activities, have generated significant interest for their potential health benefits. These hydrolysates contain bioactive peptides which are peptide sequences known for their beneficial physiological effects. These biologically active peptides play a role in metabolic regulation/modulation and are increasingly seen as promising ingredients in functional foods, nutraceuticals and pharmaceuticals, with potential to improve human health and prevent disease. This review aims to summarize the current in vitro, cell model (in situ) and in vivo research on the antioxidant, glycaemic management and muscle health enhancement properties of FPHs and their peptides