cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Four annular structures in a protostellar disk less than 500,000 years old
Creators: name: Segura-Cox, Dominique M.
name: Schmiedeke, Anika
name: Pineda, Jaime E.
name: Stephens, Ian W.
name: Fernández-López, Manuel
name: Looney, Leslie W.
name: Caselli, Paola
name: Li, Zhi-Yun
name: Mundy, Lee G.
name: Kwon, Woojin
name: Harris, Robert J.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: Annular structures, or rings and gaps, in disks around pre-main sequence stars have been detected in abundance towards Class II objects ~1,000,000 years in age. These structures are often interpreted as evidence of planet formation, with planet-mass bodies carving rings and gaps in the disk. This implies that planet formation may already be underway in even younger disks in the Class I phase, when the protostar is still embedded in a larger scale dense envelope of gas and dust. While younger disks likely play an important role in the onset of planet formation, only within the past decade have detailed properties of disks in the youngest star-forming phases begun to be observed. Here we present 1.3 mm dust emission observations with 5 au resolution that show four annular substructures in the disk of the young (<500,000 years) protostar IRS 63. IRS 63, a single Class I source located in the nearby Ophiuchus molecular cloud (at a distance of 144 pc), is one of the brightest Class I protostars at (sub)millimeter wavelengths that also has a relatively large disk (>50 au). Multiple annular substructures observed towards disks at young times can act as an early foothold for dust grain growth, a prerequisite of planet formation. Whether planets already exist or not in the disk of IRS 63, it is clear that the planet formation process begins in the young protostellar phases, earlier than predicted by current planet formation theories.
description: Accepted for publication in Nature, appearing in the 8 Oct 2020 issue, DOI: 10.1038/s41586-020-2779-6
La sinodalità nelle Chiese di Puglia a partire dalla celebrazione dei sinodi diocesani dopo il 1983
Creators: name: Gramegna, Domenico
Publisher: name: Apulia Theologica
Year: 2025

description: Apulia Theologica, V. 8 N. 1 (2022): Apulia theologica vol. 8, fascicolo 1
Trace-automata : a formal framework for using abstraction to verify hybrid systems
Creators: name: Martin, Andrew Kenneth
Publisher: name: University of British Columbia
Year: 2009

description: This dissertation presents a new framework, trace-automata, for verifying hybrid systems. In addition, a simple, general theory of abstraction is presented, based on the idea of approximations that are liberal or conservative with respect to an abstraction function. This theory gives rise to a sound technique whereby hybrid systems are verified by constructing discrete approximations of both the implementation and the specification, and verifying that the approximate implementation satisfies the approximate specification. Trace-automata are language accepting, infinite tape automata, extended to allow multiple tapes, and to allow tapes that consist of continuous traces over the reals, as well as tapes that consist of sequences of discrete symbols. Hybrid systems are represented by automata that read some continuous tapes and some discrete tapes. Trace-automata are used to represent both the implementation and the specification of the system to be verified. Verification corresponds to demonstrating that the language accepted by the implementation is contained in that accepted by the specification. Hybrid systems are verified by constructing and verifying discrete approximations. Abstraction functions map continuous traces to discrete sequences. A liberal approximation of the system implementation is verified against a conservative approximation of the system specification. From this verification, it can be concluded that the original hybrid model satisfies the original specification. The dissertation describes a general technique for constructing discrete, liberal approximations of trace-automata representing differential equations and inclusions. In addition, trace-automata themselves can encode abstraction functions, with the result that trace-automata language containment can also be used to establish that an approximation is liberal or conservative as the case may be. These techniques are illustrated with an example verification based upon the Philips Audio Control Protocol with two agents, each capable of both transmitting and receiving. The verification is novel in that it is based upon a detailed model of the analog electrical behaviour of the bus.
COHORT: Coordination of Heterogeneous Thermostatically Controlled Loads for Demand Flexibility
Creators: name: Chen, Bingqing
name: Francis, Jonathan
name: Pritoni, Marco
name: Kar, Soummya
name: Bergés, Mario
Publisher: name: arXiv
Year: 2020
Subjects: subject: Systems and Control (eess.SY)
subject: FOS: Electrical engineering, electronic engineering, information engineering

description: Demand flexibility is increasingly important for power grids. Careful coordination of thermostatically controlled loads (TCLs) can modulate energy demand, decrease operating costs, and increase grid resiliency. We propose a novel distributed control framework for the Coordination Of HeterOgeneous Residential Thermostatically controlled loads (COHORT). COHORT is a practical, scalable, and versatile solution that coordinates a population of TCLs to jointly optimize a grid-level objective, while satisfying each TCL's end-use requirements and operational constraints. To achieve that, we decompose the grid-scale problem into subproblems and coordinate their solutions to find the global optimum using the alternating direction method of multipliers (ADMM). The TCLs' local problems are distributed to and computed in parallel at each TCL, making COHORT highly scalable and privacy-preserving. While each TCL poses combinatorial and non-convex constraints, we characterize these constraints as a convex set through relaxation, thereby making COHORT computationally viable over long planning horizons. After coordination, each TCL is responsible for its own control and tracks the agreed-upon power trajectory with its preferred strategy. In this work, we translate continuous power back to discrete on/off actuation, using pulse width modulation. COHORT is generalizable to a wide range of grid objectives, which we demonstrate through three distinct use cases: generation following, minimizing ramping, and peak load curtailment. In a notable experiment, we validated our approach through a hardware-in-the-loop simulation, including a real-world air conditioner (AC) controlled via a smart thermostat, and simulated instances of ACs modeled after real-world data traces. During the 15-day experimental period, COHORT reduced daily peak loads by an average of 12.5% and maintained comfortable temperatures.
description: Accepted to ACM BuildSys 2020; 10 pages
Testing the Curvature Effect and Internal Origin of Gamma-Ray Burst Prompt Emissions and X-ray Flares with Swift Data
Creators: name: Liang, E. W.
name: Zhang, B.
name: O'Brien, P. T.
name: Willingale, R.
name: Angelini, L.
name: Burrows, D. N.
name: Campana, S.
name: Chincarini, G.
name: Falcone, A.
name: Gehrels, N.
name: Goad, M. R.
name: Grupe, D.
name: Kobayashi, S.
name: Mészáros, P.
name: Nousek, J. A.
name: Osborne, J. P.
name: Page, K. L.
name: Tagliaferri, G.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: The X-ray light curves of many gamma-ray bursts (GRBs) observed by the Swift X-Ray Telescope (XRT) have a very steep-decay component (tail) following the prompt gamma-rays in the early phase and have some erratic flares occurring at a time from ~10^2 up to ~10^5 seconds. Based on the assumption that these tails and flares are of internal shock origin and that their decline behaviors are dominated by the curvature effect of the fireball, we present a self-consistency test for this scenario with a sample of 36 prompt-emission-tails/flare-tails in 22 GRB XRT light curves. Our results show that the t0 of the prompt emission tails and the tails of well-separated flares are usually at the rising segment of the last pulse of the prompt emission or the corresponding X-ray flare, being self-consistent with the expectation of the internal dissipation models for the prompt emission and X-ray flares. Our results indicate that each X-ray flare forms a distinct new episode of central engine activity and the GRB central engine remains active after the prompt emission is over, sometimes up to ~1 day after the GRB trigger (e.g. GRB 050502B & GRB 050724). This challenges the conventional central engine models and calls for new ideas to re-start the central engine. We further show that the on-set time of the late central engine activity does not depend on the GRB duration. We also identify a minority group of GRBs whose combined BAT-XRT light curves are smoothly connected without an abrupt transition between the prompt emission and the afterglow. These GRBs may have an external origin for both the prompt emission and the afterglow.
description: 17 pages total with 2 figures, version accepted for publication in ApJ
Current behavior of a quantum Hamiltonian ratchet in resonance
Creators: name: Poletti, Dario
name: Carlo, Gabriel G.
name: Li, Baowen
Publisher: name: arXiv
Year: 2006
Subjects: subject: Quantum Physics (quant-ph)
subject: Soft Condensed Matter (cond-mat.soft)
subject: FOS: Physical sciences

description: We investigate the ratchet current that appears in a kicked Hamiltonian system when the period of the kicks corresponds to the regime of quantum resonance. In the classical analogue, a spatial-temporal symmetry should be broken to obtain a net directed current. It was recently discovered that in quantum resonance the temporal symmetry can be kept, and we prove that breaking the spatial symmetry is a necessary condition to find this effect. Moreover, we show numerically and analytically how the direction of the motion is dramatically influenced by the strength of the kicking potential and the value of the period. By increasing the strength of the interaction this direction changes periodically, providing us with a non-expected source of current reversals in this quantum model. These reversals depend on the kicking period also, though this behavior is theoretically more difficult to analyze. Finally, we generalize the discussion to the case of a non-uniform initial condition.
description: 6 pages, 4 figures
Fluctuations and Fermi-Dirac Correlations in e+e- annihilation
Creators: name: Gustafson, Gosta
Publisher: name: arXiv
Year: 2006
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: In this talk I first present a short review of fluctuations in $e^+e^-$-annihilations. I then describe some new results on FD correlations. Experimental analyses of $pp$ and $ΛΛ$ correlations indicate a very small production radius. This result relies very strongly on comparisons with MC simulations. A study of the approximations and uncertainties is these simulations imply that it is premature to draw such a conclusion from the data.
description: Talk presented at XXXVI Int. Symp. on Multiparticle Dynamics, Paraty, Brazil, 2 - 8 Sept. 2006
Clove essential oil and its major component, eugenol: a comparative study of their in vitro antioxidant and anticancer properties
Creators: name: Haro-González, José Nabor
name: Barbosa-Nuñez, Jorge Alejandro
name: Castillo-Herrera, Gustavo Adolfo
name: Estarrón-Espinosa, Mirna
name: Herrera-Rodríguez, Sara Elisa
name: Espinosa-Andrews, Hugo
name: Álvarez, Ángel H.
name: Martínez-Velázquez, Moisés
Publisher: name: Taylor & Francis
Year: 2024
Subjects: subject: Biochemistry
subject: Microbiology
subject: FOS: Biological sciences
subject: Neuroscience
subject: Pharmacology
subject: Environmental Sciences not elsewhere classified
subject: Chemical Sciences not elsewhere classified
subject: Ecology
subject: Developmental Biology

description: Syzygium aromaticum L. (clove) is a species native to subtropical countries. Its dried flower buds are rich in essential oils, which have shown insecticidal, anti-inflammatory and anaesthetic effects. This work was aimed to study the differences in antioxidant and anticancer activities between clove essential oil (CEO) and its major component, eugenol. The chemical composition of the CEO was determined by GC-MS. The physicochemical properties and antioxidant activity were determined in CEO and eugenol. Finally, anticancer activities were assayed against seven cell lines. Chemical analysis revealed that 80% of the CEO was eugenol. The density and IR were similar, and the colour was ΔE*>3. CEO had a lower phenolic content, but similar antioxidant activity to eugenol. The anticancer activity of the CEO was greater than that of eugenol in all the cell lines except for HeLa cells. These results suggest that secondary compounds in CEO enhance its antioxidant and ­anticancer activities.
Creation of a predictive equation to estimate fat-free mass and the ratio of fat-free mass to skeletal size using morphometry in lean working farm dogs
Creators: name: Leung, YM
name: Cave, NJ
name: Hodgson, BAS
Publisher: name: Taylor & Francis
Year: 2018
Subjects: subject: Biochemistry
subject: Medicine
subject: Physiology
subject: FOS: Biological sciences
subject: Pharmacology
subject: Biotechnology
subject: Evolutionary Biology
subject: Ecology
subject: Sociology
subject: FOS: Sociology
subject: Immunology
subject: FOS: Clinical medicine
subject: Inorganic Chemistry
subject: FOS: Chemical sciences
subject: Computational Biology

description: To develop an equation that accurately estimates fat-free mass (FFM) and the ratio of FFM to skeletal size or mass, using morphometric measurements in lean working farm dogs, and to examine the association between FFM derived from body condition score (BCS) and FFM measured using isotope dilution. Thirteen Huntaway and seven Heading working dogs from sheep and beef farms in the Waikato region of New Zealand were recruited based on BCS (BCS < 3, 3–4, > 4) using a nine-point scale. Bodyweight, BCS, and morphometric measurements (head length and circumference, body length, thoracic girth, and fore and hind limb length) were recorded for each dog, and body composition was measured using an isotopic dilution technique. A new variable using morphometric measurements, termed skeletal size, was created using principal component analysis. Models for predicting FFM, leanST (FFM minus skeletal mass) and ratios of FFM and leanST to skeletal size or mass were generated using multiple linear regression analysis. Mean FFM of the 20 dogs, measured by isotope dilution, was 22.1 (SD 4.4) kg and the percentage FFM of bodyweight was 87.0 (SD 5.0)%. Median BCS was 3.0 (min 1, max 6). Bodyweight, breed, age and skeletal size or mass were associated with measured FFM (p<0.001). There was a good correlation between predicted FFM and measured FFM (R2=0.96), and for the ratio of predicted FFM to skeletal size and measured values (R2=0.99). Correlation coefficients were higher for the ratio FFM and leanST to skeletal size than for ratios using skeletal mass. There was a positive correlation between BCS-derived fat mass as a percentage of bodyweight and fat mass percentage determined using isotope dilution (R2=0.65). As expected, the predictive equation was accurate in estimating FFM when tested on the same group of dogs used to develop the equation. The significance of breed, independent of skeletal size, in predicting FFM indicates that individual breed formulae may be required. Future studies that apply these equations on a greater population of working Huntaway and Heading dogs are needed to establish the utility of these equations on a large scale. Such studies could ascertain if there is a ratio for lean mass to skeletal size below which the risk of injury or disease increases. If these equations prove useful they would provide an objective and non-invasive measure to determine when welfare in individual dogs is compromised by underfeeding.
CapsField: Light Field-based Face and Expression Recognition in the Wild using Capsule Routing
Creators: name: Sepas-Moghaddam, Alireza
name: Etemad, Ali
name: Pereira, Fernando
name: Correia, Paulo Lobato
Publisher: name: arXiv
Year: 2021
Subjects: subject: Computer Vision and Pattern Recognition (cs.CV)
subject: FOS: Computer and information sciences

description: Light field (LF) cameras provide rich spatio-angular visual representations by sensing the visual scene from multiple perspectives and have recently emerged as a promising technology to boost the performance of human-machine systems such as biometrics and affective computing. Despite the significant success of LF representation for constrained facial image analysis, this technology has never been used for face and expression recognition in the wild. In this context, this paper proposes a new deep face and expression recognition solution, called CapsField, based on a convolutional neural network and an additional capsule network that utilizes dynamic routing to learn hierarchical relations between capsules. CapsField extracts the spatial features from facial images and learns the angular part-whole relations for a selected set of 2D sub-aperture images rendered from each LF image. To analyze the performance of the proposed solution in the wild, the first in the wild LF face dataset, along with a new complementary constrained face dataset captured from the same subjects recorded earlier have been captured and are made available. A subset of the in the wild dataset contains facial images with different expressions, annotated for usage in the context of face expression recognition tests. An extensive performance assessment study using the new datasets has been conducted for the proposed and relevant prior solutions, showing that the CapsField proposed solution achieves superior performance for both face and expression recognition tasks when compared to the state-of-the-art.
description: Accepted in IEEE Transactions on Image Processing (IEEE T-IP)
title: Interactions of commercial fisheries and marine renewable energy developments in Scottish waters
Creators: name: Kafas, Andronikos
name: Jones, Gareth
name: Davies, Ian
name: Scott, Beth
Publisher: name: ASC 2013 - Theme session I
Year: 2024
Subjects: Pressures, impacts, conservation, and management

description: No abstracts are to be cited without prior reference to the author. Marine Renewable Energy Developments (MREDs) need to be accommodated within the existing pattern of commercial and conservation uses, in the context of limited ocean space availability. The Scottish Government places high priority on renewable energy, aiming to cover the total electricity demand from renewable sources by 2020. Hence a large number of MREDs are expected. Optimum siting of these developments, while maintaining the sustainability of sectors (economic and ecological), such as commercial fisheries, involves multiple scientific challenges. Predicting and minimising environmental and socio-economic interactions between fisheries and the renewable industry is an important element of both marine planning and licensing. In this study, the spatial distribution of the Scottish commercial fishing fleet is studied to quantify the conflicts and synergies arising from MREDs. The number of vessels impacted, gear types used and fishing intensity in the draft sectoral plan option areas for MREDs in Scottish waters out to 200 nm have been identified. Socio-economic impacts of renewable energy developments on fishing effort/ landings/ revenues at the Scottish fleet and individual vessel scales have been assessed, and potential displacement opportunities have been identified. Outputs from this study may inform both large scale strategic planning and individual project siting in the future.
The QCD critical end point in the SU(3) Nambu--Jona-Lasinio model
Creators: name: Costa, Pedro
name: de Sousa, C. A.
name: Ruivo, M. C.
name: Kalinovsky, Yu. L.
Publisher: name: arXiv
Year: 2007
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We study the chiral phase transition at finite temperature $T$ and baryonic chemical potential $μ_B$ within the framework of the SU(3) Nambu-Jona-Lasinio (NJL) model. The QCD critical end point (CEP) and the critical line at finite $T$ and $μ_B$ are investigated: the study of physical quantities, such as the baryon number susceptibility and the specific heat in the vicinity the CEP, will provide relevant information concerning the order of the phase transition. The class of the CEP is determined by calculating the critical exponents of those quantities.
description: 10 pages, 4 figures; PLB version
Creation of a predictive equation to estimate fat-free mass and the ratio of fat-free mass to skeletal size using morphometry in lean working farm dogs
Creators: name: Leung, Y.M.
name: Cave, N.J.
name: Hodgson, B.A.S.
Publisher: name: Taylor & Francis
Year: 2018
Subjects: subject: Biochemistry
subject: Medicine
subject: Physiology
subject: FOS: Biological sciences
subject: Pharmacology
subject: Biotechnology
subject: Ecology
subject: Sociology
subject: FOS: Sociology
subject: Immunology
subject: FOS: Clinical medicine
subject: Inorganic Chemistry
subject: FOS: Chemical sciences
subject: Computational Biology

description: AIMS: To develop an equation that accurately estimates fat-free mass (FFM) and the ratio of FFM to skeletal size or mass, using morphometric measurements in lean working farm dogs, and to examine the association between FFM derived from body condition score (BCS) and FFM measured using isotope dilution. METHODS: Thirteen Huntaway and seven Heading working dogs from sheep and beef farms in the Waikato region of New Zealand were recruited based on BCS (BCS <3, 3–4, >4) using a nine-point scale. Bodyweight, BCS, and morphometric measurements (head length and circumference, body length, thoracic girth, and fore and hind limb length) were recorded for each dog, and body composition was measured using an isotopic dilution technique. A new variable using morphometric measurements, termed skeletal size, was created using principal component analysis. Models for predicting FFM, leanST (FFM minus skeletal mass) and ratios of FFM and leanST to skeletal size or mass were generated using multiple linear regression analysis. RESULTS: Mean FFM of the 20 dogs, measured by isotope dilution, was 22.1 (SD 4.4) kg and the percentage FFM of bodyweight was 87.0 (SD 5.0)%. Median BCS was 3.0 (min 1, max 6). Bodyweight, breed, age and skeletal size or mass were associated with measured FFM (p<0.001). There was a good correlation between predicted FFM and measured FFM (R2=0.96), and for the ratio of predicted FFM to skeletal size and measured values (R2=0.99). Correlation coefficients were higher for the ratio FFM and leanST to skeletal size than for ratios using skeletal mass. There was a positive correlation between BCS-derived fat mass as a percentage of bodyweight and fat mass percentage determined using isotope dilution (R2=0.65). CONCLUSIONS AND CLINICAL RELEVANCE: As expected, the predictive equation was accurate in estimating FFM when tested on the same group of dogs used to develop the equation. The significance of breed, independent of skeletal size, in predicting FFM indicates that individual breed formulae may be required. Future studies that apply these equations on a greater population of working Huntaway and Heading dogs are needed to establish the utility of these equations on a large scale. Such studies could ascertain if there is a ratio for lean mass to skeletal size below which the risk of injury or disease increases. If these equations prove useful they would provide an objective and non-invasive measure to determine when welfare in individual dogs is compromised by underfeeding.
Το σύστημα πρόσληψης των εκπαιδευτικών στη χώρα μας από το 1998 έως σήμερα: το παράδειγμα των φιλολόγων
Creators: name: Τσιουπλάκα, Παρασκευή Γεωργίου
Publisher: name: Aristotle University of Thessaloniki
Year: 2011
Subjects: εκπαιδευτικοί
σύστημα πρόσληψης
ΑΣΕΠ
teachers
recruitment system
ASEP

description: Με την παρούσα διατριβή γίνεται μια προσπάθεια να διερευνηθούν οι απόψεις των μελών ΔΕΠ για την αποτελεσματικότητα του συστήματος πρόσληψης των φιλολόγων μέσα από τον διαγωνισμό του Α.Σ.Ε.Π. Η εργασία αποτελείται από δύο μέρη, το θεωρητικό και το εμπειρικό. Στο πρώτο μέρος της εργασίας επιχειρείται να παρουσιαστεί το σύστημα πρόσληψης των εκπαιδευτικών στην Ελλάδα, ο διαγωνισμός του Α.Σ.Ε.Π. Ακολουθεί η παρουσίαση και η ανάλυση των θεμάτων των φιλολόγων στις δύο θεματικές ενότητες σε όλους τους διαγωνισμούς που έχουν διεξαχθεί. Στο εμπειρικό μέρος διερευνώνται οι απόψεις των μελών ΔΕΠ για τον διαγωνισμό του Α.Σ.Ε.Π. φιλολόγων, χρησιμοποιώντας την τεχνική της συνέντευξης. Εκτίθενται η αφετηρία, οι στόχοι, τα ερωτήματα και η μεθοδολογία της έρευνας. Στη συνέχεια, με τη μέθοδο της ποιοτικής ανάλυσης περιεχομένου, γίνεται η επεξεργασία και η ανάλυση των δεδομένων και τέλος, συζητούνται τα ερευνητικά πορίσματα
description: An effort is being made with this dissertation to investigate and identify the viewpoints of faculty members about the effectiveness of the philology- teacher recruitment system in Greece, through examination of Supreme Council for Civil Personnel Selection (ASEP). The dissertation is separated into two parts, the theoretical and the empirical. In the first part, initially, it is attempted to be displayed the examination of ASEP and then the analysis of the exams’ questions follows. In the second part, the opinions of faculty members are explored through interviews. More specifically, the starting point, the objectives, the questions and the methodology of research are presented. The data, concerning the research are elaborated and analyzed, with the mode of qualitative analysis of content, and are discussed at the end.
Bias spectroscopy and simultaneous SET charge state detection of Si:P double dots
Creators: name: Mitic, M.
name: Petersson, K. D.
name: Cassidy, M. C.
name: Starrett, R. P.
name: Gauja, E.
name: Ferguson, A. J.
name: Yang, C.
name: Jamieson, D. N.
name: Clark, R. G.
name: Dzurak, A. S.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We report a detailed study of low-temperature (mK) transport properties of a silicon double-dot system fabricated by phosphorous ion implantation. The device under study consists of two phosphorous nanoscale islands doped to above the metal-insulator transition, separated from each other and the source and drain reservoirs by nominally undoped (intrinsic) silicon tunnel barriers. Metallic control gates, together with an Al-AlOx single-electron transistor, were positioned on the substrate surface, capacitively coupled to the buried dots. The individual double-dot charge states were probed using source-drain bias spectroscopy combined with non-invasive SET charge sensing. The system was measured in linear (VSD = 0) and non-linear (VSD <> 0) regimes allowing calculations of the relevant capacitances. Simultaneous detection using both SET sensing and source-drain current measurements was demonstrated, providing a valuable combination for the analysis of the system. Evolution of the triple points with applied bias was observed using both charge and current sensing. Coulomb diamonds, showing the interplay between the Coulomb charging effects of the two dots, were measured using simultaneous detection and compared with numerical simulations.
description: 7 pages, 6 figures
Solution of an infection model near threshold
Creators: name: Kessler, David A.
name: Shnerb, Nadav M.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Populations and Evolution (q-bio.PE)
subject: FOS: Biological sciences

description: We study the Susceptible-Infected-Recovered model of epidemics in the vicinity of the threshold infectivity. We derive the distribution of total outbreak size in the limit of large population size $N$. This is accomplished by mapping the problem to the first passage time of a random walker subject to a drift that increases linearly with time. We recover the scaling results of Ben-Naim and Krapivsky that the effective maximal size of the outbreak scales as $N^{2/3}$, with the average scaling as $N^{1/3}$, with an explicit form for the scaling function.
Gaussian approximation for finitely extensible bead-spring chains with hydrodynamic interaction
Creators: name: Prabhakar, R.
name: Prakash, J. Ravi
Publisher: name: arXiv
Year: 2006
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: FOS: Physical sciences

description: The Gaussian Approximation, proposed originally by Ottinger [J. Chem. Phys., 90 (1) : 463-473, 1989] to account for the influence of fluctuations in hydrodynamic interactions in Rouse chains, is adapted here to derive a new mean-field approximation for the FENE spring force. This "FENE-PG" force law approximately accounts for spring-force fluctuations, which are neglected in the widely used FENE-P approximation. The Gaussian Approximation for hydrodynamic interactions is combined with the FENE-P and FENE-PG spring force approximations to obtain approximate models for finitely-extensible bead-spring chains with hydrodynamic interactions. The closed set of ODE's governing the evolution of the second-moments of the configurational probability distribution in the approximate models are used to generate predictions of rheological properties in steady and unsteady shear and uniaxial extensional flows, which are found to be in good agreement with the exact results obtained with Brownian dynamics simulations. In particular, predictions of coil-stretch hysteresis are in quantitative agreement with simulations' results. Additional simplifying diagonalization-of-normal-modes assumptions are found to lead to considerable savings in computation time, without significant loss in accuracy.
description: 26 pages, 17 figures, 2 tables, 75 numbered equations, 1 appendix with 10 numbered equations Submitted to J. Chem. Phys. on 6 February 2006
title: The Maritime Spatial Planning – from planning for society to planning with society
Creators: name: Aps, R.
name: Kopti, M.
name: Suursaar, Ü.
Publisher: name: ASC 2013 - Theme session I
Year: 2024
Subjects: Pressures, impacts, conservation, and management

description: No abstracts are to be cited without prior reference to the author. The aim of the 7FP Project „Bridging the gap between science, stakeholders and policy makers Phase 2 - Integration of evidence-based knowledge and its application to science and management of fisheries and the marine environment (GAP2)“ is to promote and enable processes for open and effective participation of stakeholders in research and management. The GAP2 Project’s Baltic Sea Case Study „Mapping the Baltic Sea fisheries in support of the Maritime Spatial Planning” is building on a Mutual Learning as a basic principle of transdisciplinarity that incorporates processes, methodologies, knowledge and goals of stakeholders from science, industry, and politics. This paper is addressing the Mutual Learning as an important process of the Maritime Spatial Planning (MSP). This process of step-by-step approach toward collaboration is based on understanding the other side’s thinking, focusing on shared interests, looking for solutions to common problems, and is technically supported by the Participatory GIS Mutual Learning methodology. The results of the GAP2 Project’s Baltic Sea Case Study related stakeholder’s Mutual Learning aimed at the integration of fisheries into the real process of MSP in Estonia are presented and discussed.
An Estelle.Z parser for a protocol test generation environment TESTGEN+
Creators: name: Zhang, Rui
Publisher: name: University of British Columbia
Year: 2009

description: Protocol testing is an indispensable constituent in protocol development. The test suite generation and selection processes are usually tedious and time-consuming. It is difficult to manually generate and select test suites without errors. Therefore, an automatic protocol test suite generation and selection environment is required. For this purpose, the protocol test suite generation and selection environment, TESTGEN+ , was developed. TESTGEN+ includes the TESTGEN, TESTSEL and TESTVAL tools for test suite generation, selection, and validation, respectively. In this thesis, a new front end of the TESTGE N tool, an Estelle.Z parser which is for an Estelle-like protocol specification language, is designed and implemented. A real world protocol, home agent - a major component of the Mobile IP protocol, is specified in Estelle.Z. The specification is fed into the TESTGE N tool to yield a test suite, which is then fed into the TESTSE L tool to get a subset of an efficient test suite with user satisfactory coverage and cost. In order to evaluate the correctness of the parser, the same protocol is specified in Estelle.Y+ASN.l and fed through a different parser into TESTGEN and TESTSEL generating a test suite. Comparing the two test suites, results from the experiment indicate: a) the Estelle.Z parser works with the TESTGE N tool well; b) TESTGE N and TESTSE L are competent tools to generate and select test suites for protocol specifications; c) furthermore, there is room to improve the TESTGE N and the TESTSEL tools.
Mid Infrared Photometry of Mass-Losing AGB Stars
Creators: name: Busso, M.
name: Guandalini, R.
name: Persi, P.
name: Corcione, L.
name: Ferrari-Toniolo, M.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We present ground-based mid-infrared imaging for 27 M-, S- and C-type Asymptotic Giant Branch (AGB) stars. The data are compared with those of the database available thanks to the IRAS, ISO, MSX and 2MASS catalogues. Our goal is to establish relations between the IR colors, the effective temperature $T_{eff}$, the luminosity $L$ and the mass loss rate $\dot M$, for improving the effectiveness of AGB modelling. Bolometric (absolute) magnitudes are obtained through distance compilations, and by applying previously-derived bolometric corrections; the variability is also studied, using data accumulated since the IRAS epoch. The main results are: i) Values of $L$ and $\dot M$ for C stars fit relations previously established by us, with Miras being on average more evolved and mass losing than Semiregulars. ii) Moderate IR excesses (as compared to evolutionary tracks) are found for S and M stars in our sample: they are confirmed to originate from the dusty circumstellar environment. iii) A larger reddening characterizes C-rich Miras and post-AGBs. In this case, part of the excess is due to AGB models overestimating $T_{eff}$ for C-stars, as a consequence of the lack of suitable molecular opacities. This has a large effect on the colors of C-rich sources and sometimes disentangling the photospheric and circumstellar contributions is difficult; better model atmospheres should be used in stellar evolutionary codes for C stars. iv) The presence of a long-term variability at mid-IR wavelengths seems to be limited to sources with maximum emission in the 8 -- 20 $μ$m region, usually Mira variables (1/3 of our sample). Most Semiregular and post-AGB stars studied here remained remarkably constant in mid-IR over the last twenty years.
description: Accepted for publication in the Astronomical Journal - 35 pages (in preprint), 9 figures, 5 tables
Asynchronous Runtime with Distributed Manager for Task-based Programming Models
Creators: name: Bosch, Jaume
name: Álvarez, Carlos
name: Jiménez-González, Daniel
name: Martorell, Xavier
name: Ayguadé, Eduard
Publisher: name: arXiv
Year: 2020
Subjects: subject: Distributed, Parallel, and Cluster Computing (cs.DC)
subject: FOS: Computer and information sciences

description: Parallel task-based programming models, like OpenMP, allow application developers to easily create a parallel version of their sequential codes. The standard OpenMP 4.0 introduced the possibility of describing a set of data dependences per task that the runtime uses to order the tasks execution. This order is calculated using shared graphs, which are updated by all threads in exclusive access using synchronization mechanisms (locks) to ensure the dependence management correctness. The contention in the access to these structures becomes critical in many-core systems because several threads may be wasting computation resources waiting their turn. This paper proposes an asynchronous management of the runtime structures, like task dependence graphs, suitable for task-based programming model runtimes. In such organization, the threads request actions to the runtime instead of doing them directly. The requests are then handled by a distributed runtime manager (DDAST) which does not require dedicated resources. Instead, the manager uses the idle threads to modify the runtime structures. The paper also presents an implementation, analysis and performance evaluation of such runtime organization. The performance results show that the proposed asynchronous organization outperforms the speedup obtained by the original runtime for different benchmarks and different many-core architectures.
description: 2020 Parallel Computing
Participatory Approaches in Farming: Enhancing Farmer Engagement and Knowledge Transfer in Rural Areas in Rajasthan
Creators: name: Dr. Pitambar Sharma
Publisher: name: Zenodo
Year: 2017

description: This research paper explores the impact of participatory approaches in farming on enhancing farmer engagement andknowledge transfer in rural areas of Rajasthan. By integrating local knowledge with modern agricultural practices, theseapproaches have demonstrated significant improvements in agricultural productivity and sustainability. The studyhighlights the role of participatory methods in fostering community involvement, promoting the adoption of innovativefarming techniques, and enhancing resource management, particularly in the context of water and soil conservation.Furthermore, the paper discusses the challenges and limitations faced in implementing participatory strategies, includinglow literacy rates, inadequate infrastructure, social hierarchies, financial constraints, and climate change vulnerabilities.Through qualitative and quantitative analyses, the findings reveal that participatory approaches can lead to increased cropyields, improved water-use efficiency, and enhanced resilience to climatic uncertainties. The research underscores theimportance of inclusivity in participatory programs to ensure that marginalized groups benefit equitably. Ultimately, thepaper argues that embracing participatory approaches is crucial for achieving sustainable agricultural development in ruralareas of Rajasthan, fostering innovation, improving livelihoods, and ensuring food security in the region.
Conformal invariance of the planar beta-deformed N=4 SYM theory requires beta real
Creators: name: Elmetti, Federico
name: Mauri, Andrea
name: Penati, Silvia
name: Santambrogio, Alberto
name: Zanon, Daniela
Publisher: name: arXiv
Year: 2006
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We study the \cal{N}=1 SU(N) SYM theory which is a marginal deformation of the \cal{N}=4 theory, with a complex deformation parameter β. We consider the large N limit and study perturbatively the conformal invariance condition. We find that finiteness requires reality of the deformation parameter β.
description: LaTex, 15 pages, 7 figures
MoeBIOS project and the BIOplastics upcycling in the packaging, textile and agricultural sectors.
Creators: name: Jiménez Pardo, María José
name: Lorenzo, Miriam
Publisher: name: Zenodo
Year: 2024

description: MoeBIOS - IMprOving waste management of BIObased plastics and the upcycling in packaging, textile and agriculture sectors. MoeBIOS is demonstrating the integration of the bioplastics BIOs End of Life value chain from collection, recycling, upcycling in Packaging (Spain), Textiles (Italy) and Agriculture (Germany). It is formed by a consortium of 21 partners + 2 Affiliated Entities led by ITENE Research Centre. It will develop 3 upcycled demonstrators from developed value chains (packaging, Agriculture and Textile) in order to reduce waste and lower environmental impact, providing a sustainable alternative to fossil resources.
Η επίδραση του υπεροξειδίου του υδρογόνου στη μετασυλλεκτική συμπεριφορά των καρπών νεκταρινιάς (Prunus persica L.).:
Creators: name: Μανωλοπούλου, Ιφιγένεια Εμμανουήλ
Publisher: name: Aristotle University of Thessaloniki
Year: 2011
Subjects: Υπεροξείδιο του υδρογόνου
Οξειδωτικός μεταβολισμός
Νεκταρινιά
Hydrogen peroxide
Oxidative metabolism
Nectarine

description: Στην παρούσα μεταπτυχιακή διατριβή διερευνήθηκε η επίδραση του οξειδωτικού μεταβολισμού κατά τη διεργασία της γήρανσης σε καρπούς νεκταρινιάς (Prunus persica L. Batsch), ποικιλίας “Stark Red Gold”. Οι καρποί συγκομίστηκαν στο στάδιο ωρίμανσης κατάλληλο για εμπορία και τοποθετήθηκαν στη συνέχεια σε θερμοκρασία δωματίου (22οC) για 8 ημέρες. Για την επίδραση του οξειδωτικού μεταβολισμού στο γηρασμό, οι καρποί εμβαπτίστηκαν σε 10 mM Η2Ο2 για 40 λεπτά και στη συνέχεια τοποθετήθηκαν σε θερμοκρασία δωματίου. Με βάση τα αποτελέσματα διαπιστώθηκε υψηλός ρυθμός αναπνοής και αύξηση στην παραγωγή αιθυλενίου μετά την μεταχείριση των καρπών με Η2Ο2 σε σύγκριση με τον μάρτυρα. Στο νωπό βάρος και στην αντίσταση της σάρκας δεν παρατηρήθηκαν σημαντικές μεταβολές. Διαπιστώθηκε επίσης ότι αρχικά οι καρποί οι οποίοι μεταχειρίστηκαν με Η2Ο2 έχουν χαμηλότερη οξύτητα σε σχέση με τον μάρτυρα, ενώ καταγράφηκε αύξηση στα επίπεδα των σακχάρων. Η αντιοξειδωτική ικανότητα των καρπών την τελευταία ημέρα του πειράματος ήταν σε υψηλότερα επίπεδα σε σχέση με το μάρτυρα. Τέλος σημαντικές μεταβολές στη δράση των αντιοξειδωτικών ενζύμων, υπεροξειδική δισμουτάση (SOD), υπεροξειδάση (POD), πολυφαινολοξειδάση (PPO), αναγωγάση της γλουταθειόνης (GR), παρατηρήθηκαν τόσο μετά την εφαρμογή του Η2Ο2 όσο και κατά τη διάρκεια του πειράματος.
description: In the present study the effect of oxidative metabolism in the process of senescence in nectarine fruit (Prunus persica L. Batsch), variety "Stark Red Gold" was investigated. The fruits were harvested at maturity suitable for marketing and then placed at room temperature (22oC) for 8 days. For the effect of oxidative metabolism in senescence, fruit were pre-treated with 10 mM H2O2 for 40 minutes and then placed at room temperature. Results showed a high respiration rate and an increase in ethylene production after treatment of fruit with H2O2 compared to the control. Fresh weight and tissue firmness had no significant changes. It was also evidenced that initially the fruits which were treated with H2O2 had lower acidity and higher sugar level compared to control. The antioxidant capacity of fruits in the last days of the experiment was higher than the control. Finally, significant changes in the activity of antioxidant enzymes, superoxide dismutase (SOD), peroxidase (POD), polyphenol oxidase (PPO), glutathione reductase (GR), were observed after H2O2 application as well as during the experiment.
Shortcuts to Adiabaticity in Digitized Adiabatic Quantum Computing
Creators: name: Hegade, Narendra N.
name: Paul, Koushik
name: Ding, Yongcheng
name: Sanz, Mikel
name: Albarrán-Arriagada, F.
name: Solano, Enrique
name: Chen, Xi
Publisher: name: arXiv
Year: 2020
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Shortcuts to adiabaticity are well-known methods for controlling the quantum dynamics beyond the adiabatic criteria, where counter-diabatic (CD) driving provides a promising means to speed up quantum many-body systems. In this work, we show the applicability of CD driving to enhance the digitized adiabatic quantum computing paradigm in terms of fidelity and total simulation time. We study the state evolution of an Ising spin chain using the digitized version of the standard CD driving and its variants derived from the variational approach. We apply this technique in the preparation of Bell and Greenberger-Horne-Zeilinger states with high fidelity using a very shallow quantum circuit. We implement this proposal in the IBM quantum computer, proving its usefulness for the speed up of adiabatic quantum computing in noisy intermediate-scale quantum devices.
description: 11 pages, 7 figures
Numerical evidence for the maximum number of mutually unbiased bases in dimension six
Creators: name: Butterley, Paul
name: Hall, William
Publisher: name: arXiv
Year: 2007
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: The question of determining the maximal number of mutually unbiased bases in dimension six has received much attention since their introduction to quantum information theory, but a definitive answer has still not been found. In this paper we move away from the traditional analytic approach and use a numerical approach to attempt to determine this number. We numerically minimise a non-negative function of a set of N+1 orthonormal bases in dimension d which only evaluates to zero if the bases are mutually unbiased. As a result we find strong evidence that (as has been conjectured elsewhere) there are no more than three mutually unbiased bases in dimension six.
description: 4 pages, 2 figures, some minor changes made
title: Integration at the round table – Marine Spatial Planning in multi-stakeholder settings[1]'
Creators: name: Olsen, E.
name: Hoel, AH.
name: Fluharty, DL.
name: Maes, F.
name: Pecceu, E.
Publisher: name: ASC 2013 - Theme session I
Year: 2024
Subjects: Pressures, impacts, conservation, and management

description: No abstracts are to be cited without prior reference to the author. Marine spatial planning (MSP) is often concidered as a pragmatic approach for the implementation of an ecosystem based management to manage marine space in a sustainable manner. Implementing MSP in an ecosystem context requires the involvement of multiple actors and stakeholders at various levels of government and society.
Quantum Computation of Finite-Temperature Static and Dynamical Properties of Spin Systems Using Quantum Imaginary Time Evolution
Creators: name: Sun, Shi-Ning
name: Motta, Mario
name: Tazhigulov, Ruslan N.
name: Tan, Adrian T. K.
name: Chan, Garnet Kin-Lic
name: Minnich, Austin J.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Developing scalable quantum algorithms to study finite-temperature physics of quantum many-body systems has attracted considerable interest due to recent advancements in quantum hardware. However, such algorithms in their present form require resources that exceed the capabilities of current quantum computers except for a limited range of system sizes and observables. Here, we report calculations of finite-temperature properties including energies, static and dynamical correlation functions, and excitation spectra of spin Hamiltonians with up to four sites on five-qubit IBM Quantum devices. These calculations are performed using the quantum imaginary time evolution (QITE) algorithm and made possible by several algorithmic improvements, including a method to exploit symmetries that reduces the quantum resources required by QITE, circuit optimization procedures to reduce circuit depth, and error mitigation techniques to improve the quality of raw hardware data. Our work demonstrates that the ansatz-independent QITE algorithm is capable of computing diverse finite-temperature observables on near-term quantum devices.
description: 14 pages, 10 figures