cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
D1.2 First release of the EXTRACT use-cases
Creators: name: EXTRACT
Publisher: name: Zenodo
Year: 2024
Subjects: semantic urban digital twin
astrophysics
extreme data
emergency preparedness
personalized evacuation route

description: This deliverable presents the first release of the PER (Personal Evacuation Routing system) and TASKA (Transient Astrophysics using the SKA pathfinder) use-cases. The primary objective of this deliverable is to detail the progress and initial outcomes in moving from the definition of use cases to the actual deployment of the Minimum Viable Proudcts (MVPs). 

The development of the PER and TASKA use-cases is grounded in the comprehensive requirements defined in the earlier phase of the project. These requirements were established through an in-depth analysis involving stakeholders' inputs, system actors' roles, and the anticipated application environments for the EXTRACT solution (see D1.1). 

This process ensured that the foundation for the development of the EXTRACT platform/system was robust and tailored to real-world needs and challenges. This deliverable outlines the evolution of the PER and TASKA use-cases form their conceptual stages to their current state. It includes: 

Detailed scenarios for each use-case, 

An overview of the functionalities implemented,

The technical strategies employed. 

These aspects highlight the tangible progress made in translating the defined requirements into operational components of the EXTRACT project. 

It's important to acknowledge that this first releaes of the MVPs is an intial step in an ongoing development process. The insights gained from this phase will fuel further refinements and enhancements in subsequent releases. The feedback from early testing and stakeholder engagement will be instrumental in fine-tuning the use-cases to better align with the evolving needs of the project.
Multifragmentation threshold in ^{93}Nb+{nat}Mg collisions at 30 MeV/nucleon
Creators: name: Manduci, Loredana
Publisher: name: arXiv
Year: 2008
Subjects: subject: Nuclear Experiment (nucl-ex)
subject: FOS: Physical sciences

description: We analyzed the $^{93}Nb$ on $^{nat}Mg$ reaction at 30 MeV/nucleon in the aim of disentangling binary sequential decay and multifragmentation decay close to the energy threshold, i.e. $\simeq 3$ MeV/nucleon. Using the backtracing technique applied to the statistical models GEMINI and SMM we reconstruct simulated charge, mass and excitation energy distributions and compare them to the experimental ones. We show that data are better described by SMM than by GEMINI in agreement with the fact that multifragmentation is responsible for fragment production at excitation energies around 3 MeV/nucleon.
description: 16 pages, 12 figures, 5 tables Soumis \`a Nuclear Physics A
La mujer en áreas STEM: experiencias en educación secundaria y educación superior
Creators: name: García-Holgado, A.
Publisher: name: Zenodo
Year: 2021
Subjects: STEM, STEAM, género, inclusión, CreaSTEAM, W-STEM, empoderamiento de la mujer, mujer en la Ciencia

description: Conferencia invitada en la I Jornada Retos y Aprendizaje IS: Educación STEM celebradas el 23 de noviembre de 2021. En esta conferencia se ilustra la necesidad de empoderamiento de la mujer en la Ciencia, con especial atención a las áreas STEM. Para ello, se toman como referencia dos proyectos europeos CreaSTEAM (2020-1-ES01-KA201-082601) y W-STEM (598923-EPP-1-2018-1-ES-EPPKA2-CBHE-JP).
Effective theory for the cosmological generation of structure
Creators: name: Bojowald, Martin
name: Skirzewski, Aureliano
Publisher: name: arXiv
Year: 2008
Subjects: subject: Astrophysics (astro-ph)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: The current understanding of structure formation in the early universe is mainly built on a magnification of quantum fluctuations in an initial vacuum state during an early phase of accelerated universe expansion. One usually describes this process by solving equations for a quantum state of matter on a given expanding background space-time, followed by decoherence arguments for the emergence of classical inhomogeneities from the quantum fluctuations. Here, we formulate the coupling of quantum matter fields to a dynamical gravitational background in an effective framework which allows the inclusion of back-reaction effects. It is shown how quantum fluctuations couple to classical inhomogeneities and can thus manage to generate cosmic structure in an evolving background. Several specific effects follow from a qualitative analysis of the back-reaction, including a likely reduction of the overall amplitude of power in the cosmic microwave background, the occurrence of small non-Gaussianities, and a possible suppression of power for odd modes on large scales without parity violation.
description: 8 pages, 1 figure
Analysis of viscous flow stability by the finite element method
Creators: name: Baldwin, John Frederick
Publisher: name: University of British Columbia
Year: 2010

description: The stability of two dimensional viscous flow is studied by means of a Finite Element method. A small perturbation stream function is added to the stream function form of the Navier-Stokes equations. The linearized perturbation equation is then recast as a restricted variational principle and discretized using finite elements. The time dependance of the perturbation is taken as exp(-λt) which leads to an eigenvalue problem where the'real part of the eigenvalue indicates the stability and the imaginary part indicates the transient nature of the associated mode. The simplification to the Orr-Sommerfeld equation is made, and this problem is solved using cubic finite elements. The results are compared to those from other solution methods in the literature and the agreement is found to be excellent. The convergence is studied and as observed with other methods a very fine grid is needed to yield accurate results. The behaviour of the finite element method in this one dimensional problem is assessed to form a guideline for the two dimensional problem. The two dimensional problem is solved using 18 d.o.f. C¹ triangular elements. It is found that the Jacobian matrix used in the Newton-Raphson iteration for the steady laminar flow solution with the addition of a mass matrix forms the basis of the perturbation eigenvalue problem. Preliminary results for a two dimensional solution of the Poiseuille flow stability problem are presented. A comparison to the Orr-Sommerfeld results is drawn and it is noted that a grid much finer than allowed by present limitations is needed. The stability of recirculating flow in a square cavity is also studied. An unstable mode is observed but its critical Reynolds number varies with grid size, and it is doubtful if this corresponds to a physical instability. The continuum problem is real and unsymmetric, which suggests the possibility of complex eigenvalues. This is observed in the discrete spectrum. The complex eigenvalues are not thought to be spurious, however, since they are present at low Reynolds number (even at R = 0.001) and are seen to converge with grid refinement. This is in contrast to one dimensional advection diffusion problems where spurious complex eigenvalues in the discrete problem can lead to an excessively bumpy numerical approximation. The results indicate that the method works well but that it is very sensitive to grid refinement which is limited by the present computing methods and facilities. The main limitation is the matrix eigenvalue routine which does not take advantage of the banded nature of the finite element matrices and finds all of the eigenvalues though our interest lies only with the first few.
GHASP : An Halpha kinematic survey of spiral and irregular galaxies - VI. New Halpha data cubes for 108 galaxies
Creators: name: Epinat, B.
name: Amram, P.
name: Marcelin, M.
name: Balkowski, C.
name: Daigle, O.
name: Hernandez, O.
name: Chemin, L.
name: Carignan, C.
name: Gach, J. -L.
name: Balard, P.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We present the Fabry-Perot observations obtained for a new set of 108 galaxies that completes the GHASP survey (Gassendi HAlpha survey of SPirals). The GHASP survey consists of 3D Ha data cubes for 203 spiral and irregular galaxies, covering a large range in morphological types and absolute magnitudes, for kinematics analysis. The GHASP sample is by now the largest sample of Fabry-Perot data ever published. We have derived Ha data cubes from which are computed Ha maps, radial velocity fields as well as residual velocity fields, position-velocity diagrams, rotation curves and the kinematical parameters for almost all galaxies. Original improvements in the determination of the kinematical parameters, rotation curves and their uncertainties have been implemented in the reduction procedure. This new method is based on the whole 2D velocity field and on the power spectrum of the residual velocity fieldrather than the classical method using successive crowns in the velocity field. Among the results, we point out that morphological position angles have systematically higher uncertainties than kinematical ones, especially for galaxies with low inclination. Morphological inclination of galaxies having no robust determination of their morphological position angle cannot be constrained correctly. Galaxies with high inclination show a better agreement between their kinematical inclination and their morphological inclination computed assuming a thin disk. The consistency of the velocity amplitude of our rotation curves have been checked using the Tully-Fisher relationship. Our data are in good agreement with previous determinations found in the literature. Nevertheless, galaxies with low inclination have statistically higher velocities than expected and fast rotators are less luminous than expected.
description: accepted in MNRAS for publication, 60 pages, 25 figures, usues biblio.bib for bibliography (.bbl included in the archive), natbib.sty, epsfig.sty
U-Net with Hierarchical Bottleneck Attention for Landmark Detection in Fundus Images of the Degenerated Retina
Creators: name: Tang, Shuyun
name: Qi, Ziming
name: Granley, Jacob
name: Beyeler, Michael
Publisher: name: arXiv
Year: 2021
Subjects: subject: Image and Video Processing (eess.IV)
subject: Computer Vision and Pattern Recognition (cs.CV)
subject: Machine Learning (cs.LG)
subject: FOS: Electrical engineering, electronic engineering, information engineering
subject: FOS: Computer and information sciences

description: Fundus photography has routinely been used to document the presence and severity of retinal degenerative diseases such as age-related macular degeneration (AMD), glaucoma, and diabetic retinopathy (DR) in clinical practice, for which the fovea and optic disc (OD) are important retinal landmarks. However, the occurrence of lesions, drusen, and other retinal abnormalities during retinal degeneration severely complicates automatic landmark detection and segmentation. Here we propose HBA-U-Net: a U-Net backbone enriched with hierarchical bottleneck attention. The network consists of a novel bottleneck attention block that combines and refines self-attention, channel attention, and relative-position attention to highlight retinal abnormalities that may be important for fovea and OD segmentation in the degenerated retina. HBA-U-Net achieved state-of-the-art results on fovea detection across datasets and eye conditions (ADAM: Euclidean Distance (ED) of 25.4 pixels, REFUGE: 32.5 pixels, IDRiD: 32.1 pixels), on OD segmentation for AMD (ADAM: Dice Coefficient (DC) of 0.947), and on OD detection for DR (IDRiD: ED of 20.5 pixels). Our results suggest that HBA-U-Net may be well suited for landmark detection in the presence of a variety of retinal degenerative diseases.
Effect of welding parameter on pitch angle for electronic circuit process
Creators: name: Thanapong Punchit
name: Kontorn Chamniprasart
name: Keerati Sulaksna
Publisher: name: Faculty of Engineering, Khon Kaen Univeristy
Year: 2012
Subjects: Welding,Design of experiment,Pitch angle,Correlation equation,Box-Behnken method

description: 1, 39, KKU Engineering Journal
Unifying cosmological and recent time variations of fundamental couplings
Creators: name: Dent, Thomas
name: Stern, Steffen
name: Wetterich, Christof
Publisher: name: arXiv
Year: 2008
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: Astrophysics (astro-ph)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: A number of positive and null results on the time variation of fundamental constants have been reported. It is difficult to judge whether or not these claims are mutually consistent, since the observable quantities depend on several parameters, namely the coupling strengths and masses of particles. The evolution of these coupling-parameters over cosmological history is also a priori unknown. A direct comparison requires a relation between the couplings. We explore several distinct scenarios based on unification of gauge couplings, providing a representative (though not exhaustive) sample of such relations. For each scenario we obtain a characteristic time dependence and discuss whether a monotonic time evolution is allowed. For all scenarios, some contradictions between different observations appear. We show how a clear observational determination of non-zero variations would test the dominant mechanism of varying couplings within unified theories.
description: Formatting changes and minor typos, equivalent to published version. 35 pages (11pt article format), 8 figures
The CoRoT Evolution and Seismic Tools Activity: Goals and Tasks
Creators: name: Lebreton, Y.
name: Monteiro, M. J. P. F. G.
name: Montalban, J.
name: Moya, A.
name: Baglin, A.
name: Christensen-Dalsgaard, J.
name: Goupil, M. -J.
name: Michel, E.
name: Provost, J.
name: Roxburgh, I. W.
name: Scuflaire, R.
name: Team, the ESTA
Publisher: name: arXiv
Year: 2008
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: The forthcoming data expected from space missions such as CoRoT require the capacity of the available tools to provide accurate models whose numerical precision is well above the expected observational errors. In order to secure that these tools meet the specifications, a team has been established to test and, when necessary, to improve the codes available in the community. The CoRoT evolution and seismic tool activity (ESTA) has been set up with this mission. Several groups have been involved. The present paper describes the motivation and the organisation of this activity, providing the context and the basis for the presentation of the results that have been achieved so far. This is not a finished task as future even better data will continue to demand more precise and complete tools for asteroseismology.
description: 11 pages, 3 figures, accepted for publication in Astrophysics and Space Science, 'CoRoT ESTA' special volume
The Future of Citizen Science Research workshop and panel discussion (graphic facilitation image)
Creators: name: Leach, Cath
name: Golumbic, Yaela
name: Bonney, Patrick
name: Marks, Leah
name: Martin, Victoria
name: Cornwell, Will
name: Pecl, Gretta
name: Rickards, Lauren
Publisher: name: figshare
Year: 2021
Subjects: subject: 49999 Earth Sciences not elsewhere classified
subject: FOS: Earth and related environmental sciences

description: Content generated from Australian Citizen Science Association Early and Mid Career Researcher panel discussion at the CitSciOz21 Conference.
Hosted by Dr Yaela Golumbic and Dr Patrick Bonney. Speakers: Leah Marks, Dr. Vicki Martin, A/prof. Will Cornwell, Prof. Gretta Pec, Prof. Lauren Rickards. Graphic facilitation by Cath Leach from Catfish Creative (www.catfishcreative.com.au).

The illustration may not be manipulated in any way by any third party, including colour change, cropping, isolation of imagery, editing of imagery in any way. The work is not approved for use in marketing collateral, packaging, resale of any kind of commercial usage without prior approval from Catfish Creative.
Pedinotus tundisii Félix & Penteado-Dias, 2004, sp. nov.
Creators: name: Félix, F. C.
name: Penteado-Dias, A. M.
Publisher: name: Zenodo
Year: 2004
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Hymenoptera
Braconidae
Pedinotus
Pedinotus tundisii

description: Pedinotus tundisii, sp. nov. (figs 1­4)
 Female: Body color: head yellow with a black longitudinal stripe extending from antenna through occipital carina; palpi yellow; mesosoma black except scutellum and propodeum dorsally yellow; metasoma black dorsally, white laterally, brown to black ventrally; wings lightly dusky, veins and stigma brown, tegula yellow; fore and middle legs yellow, hind leg brown, middle and hind coxae black, fore yellow. Body length. 7.0 mm. Fore wing length 4.5 mm.
 Head (fig. 1): Face rugose, frons weakly striate and excavated, vertex and temple smooth; malar space 0.33 eye height; ocell­ocular distance twice diameter of lateral ocellus; 32­40 antennomeres; first flagellomere is larger than scape and pedicel combined.
 Mesosoma (fig. 2): Pronotum smooth, pronotal groove rugose mesoscutal lobes smooth; notauli scrobiculate meeting large rugose area; scutellum weakly rugose; mesopleuron including subalar groove smooth, sternaulus smooth; propodeum smooth laterally, areolate rugose dorsally, median and lateral carinae distinct with no areola.
 Metasoma (fig.3) First tergum areolate rugose, longer than apical width; second tergum with median semicircular area areolate rugose,1.3 wider at apex than long, lateral areas areolate; remaining four terga smooth on apical half, basal half areolate; ovipositor slightly greater than metasoma.
 Fore wing (fig. 4) Vein 1cu­a slightly post furcal; m­cu arising before 2RS.
 Hind wing (fig. 4) Vein r­m about 0.2 length of vein 1M.
 Male. Unknown.
 Material Examined. Holotype (DCBU); female, Brazil, SP, Peruíbe, Estação Ecológica Juréia­Itatins, 24°31´06´´S /47°1206´´W, sweeping vegetation, 5.V.2002; N. Wanderley Periotto col.
 Comments. This species is distinguished by the absence of a propodeal areola, the presence of distinct metasomal sculpture, as in P. n i g e r, the length of the first two tergites and the colour of the body.
 Etymology. This species is named for José Galízia Tundisi for his contributions to ecological research in Brazil.
description: Published as part of Félix, F. C. & Penteado-Dias, A. M., 2004, from Brazil, pp. 1-4 in Zootaxa 602 on pages 2-4, DOI: 10.5281/zenodo.158331
A COMBINED METHOD OF TREATMENT OF INTRA-ARTICULAR FRACTURES OF THE PHALANGES OF THE HAND USING A DYNAMIC EXTERNAL FIXATION DEVICE AND A HYALURONIC ACID PREPARATION
Creators: name: Fasakhov, R.
name: Gaizatullin, R.
Publisher: name: Norwegian Journal of Development of the International Science
Year: 2021
Subjects: Intra-articular fracture
hyaluronic acid
dynamic external fixation apparatus

description: The article describes the technique of treatment of intra-articular fractures. A combined tactic was applied in which a dynamic distraction apparatus is applied and a hyaluronic acid preparation is injected. Good results have been obtained.
Observation of ZZ production in ppbar collisions at sqrt(s) = 1.96 TeV
Creators: name: D0 Collaboration
name: Abazov, V.
Publisher: name: arXiv
Year: 2008
Subjects: subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: We present an observation for ZZ -> l+l-l'+l'- (l, l' = e or mu) production in ppbar collisions at a center-of-mass energy of sqrt(s) = 1.96 TeV. Using 1.7 fb-1 of data collected by the D0 experiment at the Fermilab Tevatron Collider, we observe three candidate events with an expected background of 0.14 +0.03 -0.02 events. The significance of this observation is 5.3 standard deviations. The combination of D0 results in this channel, as well as in ZZ -> l+l-nunubar, yields a significance of 5.7 standard deviations and a combined cross section of sigma(ZZ) = 1.60 +/- 0.63 (stat.) +0.16 -0.17 (syst.) pb.
description: 7 pages, 1 figure, 2 tables Modified slightly following review process
Preparation of nanostructured crystalline titanium dioxide (TiO2) by Sol-Gel technique
Creators: name: Khanitta Kamwilaisak
name: Puttiporn Thiamsinsangwon
Publisher: name: Faculty of Engineering, Khon Kaen Univeristy
Year: 2013
Subjects: Sol-Gel Photocatalysis TiO2

description: 2, 40, KKU Engineering Journal
Towards a Framework for Nonlinear Predictive Control using Derivative-Free Optimization
Creators: name: McInerney, Ian
name: Nita, Lucian
name: Nie, Yuanbo
name: Oliveri, Alberto
name: Kerrigan, Eric C.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Optimization and Control (math.OC)
subject: Systems and Control (eess.SY)
subject: FOS: Mathematics
subject: FOS: Electrical engineering, electronic engineering, information engineering

description: The use of derivative-based solvers to compute solutions to optimal control problems with non-differentiable cost or dynamics often requires reformulations or relaxations that complicate the implementation or increase computational complexity. We present an initial framework for using the derivative-free Mesh Adaptive Direct Search (MADS) algorithm to solve Nonlinear Model Predictive Control problems with non-differentiable features without the need for reformulation. The MADS algorithm performs a structured search of the input space by simulating selected system trajectories and computing the subsequent cost value. We propose handling the path constraints and the Lagrange cost term by augmenting the system dynamics with additional states to compute the violation and cost value alongside the state trajectories, eliminating the need for reconstructing the state trajectories in a separate phase. We demonstrate the practicality of this framework by solving a robust rocket control problem, where the objective is to reach a target altitude as close as possible, given a system with uncertain parameters. This example uses a non-differentiable cost function and simulates two different system trajectories simultaneously, with each system having its own free final time.
description: Accepted for presentation at the 7th IFAC Conference on Nonlinear Model Predictive Control
Superconductivity phase diagrams of electron doped cuprates R(2-x)CexCuO4 (R = La, Pr, Nd, Sm, and Eu)
Creators: name: Krockenberger, Y.
name: Kurian, J.
name: Winkler, A.
name: Tsukada, A.
name: Naito, M.
name: Alff, L.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: The superconductivity phase diagrams of electron doped cuprates of the form R(2-x)CexCuO4 (with R= La, Pr, Nd, Sm, and Eu) have been determined for cerium compositions 0 < x < 0.36 in a consistent series of epitaxial thin films grown by reactive molecular beam epitaxy (MBE). The use of epitaxial thin films allows the growth of materials away from thermodynamical equilibrium expanding the accessible phase space beyond the availability of bulk material. The superconducting phase space systematically increases with the rare earth ionic size. The doping concentration where the maximal transition temperature occurs in La(2-x)CexCuO4 is considerably shifted to lower doping (x ~ 0.09) compared to La(2-x)SrxCuO4 (x ~ 0.15). At the same time, the width of the superconducting region is broadened.
description: 5 pages, 4 figures
ANIMAL DELAY PERIOD PREDICTION IN THE SHELTER USING NLP METHODS
Creators: name: Marchenkov, I.
Publisher: name: Norwegian Journal of Development of the International Science
Year: 2021
Subjects: Pet adoption
euthanasia problem
machine learning methods
natural language processing
decision sup-port tool

description: The problem of homeless animals is considered in the article. Among the 7-8 million animals that end up in rescue shelters, about 45% of animals are euthanized, 15-25% of animals die due to overcrowding in shelters each year. The aim of the study is to improve the rate of appropriation of animals in shelters, using machine learning methods: Logistic regression, Naive Bayes classifier, Support vector machine, Decision trees, Random forest and Extremely randomized trees, as well as Natural language processing methods.
Slender concrete column analysis using direct methods
Creators: name: Oldridge, Dennis Philip
Publisher: name: University of British Columbia
Year: 2010

description: Current design formulas for slender concrete columns are inaccurate when failure is due to instability. Three direct methods, the energy method, collocation and finite differences, were applied to the problem in an attempt to obtain a design method suitable for code use. Of the three methods, the collocation method appeared to give the best results since the equations obtained from energy and finite differences were much too complex for the required degree of accuracy. The methods require the adoption of a suitable moment-curvature model, and it was found that a straight line and two parabola model could adequately represent the real moment-curvature relation.
AUTOMATIC GAS WELL FLOW CONTROL SYSTEM BASED ON EXPRESS ASSESSMENT OF THEIR CONDITION
Creators: name: Krasnov, A.
name: Prakhova, M.
name: Kalashnik Yu.
Publisher: name: Norwegian Journal of Development of the International Science
Year: 2021
Subjects: gas well
water cut
sand production
flow rate control

description: The aim of the study is a system for automatic control of the flow rate of a gas well based on an express assessment of the degree of its water cut and sand production. It is proposed to estimate the water cut based on the dynamics of the temperature and pressure values at the wellhead, and the sand production rate according to the readings of the DSP-AKE sensor additionally installed at the wellhead. The system makes it possible to regulate the flow rate in real time, and in the case of its blowdown, it can be carried out in automatic mode.
Attitude Reconstruction from Inertial Measurement: Mitigating Runge Effect for Dynamic Applications
Creators: name: Wu, Yuanxin
name: Zhu, Maoran
Publisher: name: arXiv
Year: 2021
Subjects: subject: Robotics (cs.RO)
subject: Systems and Control (eess.SY)
subject: FOS: Computer and information sciences
subject: FOS: Electrical engineering, electronic engineering, information engineering

description: Time-equispaced inertial measurements are practically used as inputs for motion determination. Polynomial interpolation is a common technique of recovering the gyroscope signal but is subject to a fundamentally numerical stability problem due to the Runge effect on equispaced samples. This paper reviews the theoretical results of Runge phenomenon in related areas and proposes a straightforward borrowing-and-cutting (BAC) strategy to depress it. It employs the neighboring samples for higher-order polynomial interpolation but only uses the middle polynomial segment in the actual time interval. The BAC strategy has been incorporated into attitude computation by functional iteration, leading to accuracy benefit of several orders of magnitude under the classical coning motion. It would potentially bring significant benefits to the inertial navigation computation under sustained dynamic motions.
description: 9 pages, 8 figures
Spin-independent elastic WIMP scattering and the DAMA annual modulation signal
Creators: name: Fairbairn, Malcolm
name: Schwetz, Thomas
Publisher: name: arXiv
Year: 2008
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: Astrophysics (astro-ph)
subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: We discuss the interpretation of the annual modulation signal seen in the DAMA experiment in terms of spin-independent elastic WIMP scattering. Taking into account channeling in the crystal as well as the spectral signature of the modulation signal we find that the low-mass WIMP region consistent with DAMA data is confined to WIMP masses close to $m_χ\simeq 12$ GeV, in disagreement with the constraints from CDMS and XENON. We conclude that even if channeling is taken into account this interpretation of the DAMA modulation signal is disfavoured. There are no overlap regions in the parameter space at 90% CL and a consistency test gives the probability of $1.2\times 10^{-5}$. We study the robustness of this result with respect to variations of the WIMP velocity distribution in our galaxy, by changing various parameters of the distribution function, and by using the results of a realistic N-body dark matter simulation. We find that only by making rather extreme assumptions regarding halo properties can we obtain agreement between DAMA and CDMS/XENON.
description: 21 pages, 12 figures, matches version accepted in JCAP
The Future of Citizen Science Research workshop and panel discussion graphic facilitation image
Creators: name: Leach, Cath
name: Golumbic, Yaela
name: Bonney, Patrick
name: Marks, Leah
name: Martin, Victoria
name: Cornwell, Will
name: Pecl, Gretta
name: Rickards, Lauren
Publisher: name: figshare
Year: 2021
Subjects: subject: 49999 Earth Sciences not elsewhere classified
subject: FOS: Earth and related environmental sciences

description: Content generated from Australian Citizen Science Association Early and Mid Career Researcher panel discussion at the CitSciOz21 Conference.
Hosted by Dr Yaela Golumbic and Dr Patrick Bonney. Speakers: Leah Marks, Dr. Vicki Martin, A/prof. Will Cornwell, Prof. Gretta Pec, Prof. Lauren Rickards. Graphic facilitation by Cath Leach from Catfish Creative (www.catfishcreative.com.au).

The illustration may not be manipulated in any way by any third party, including colour change, cropping, isolation of imagery, editing of imagery in any way. The work is not approved for use in marketing collateral, packaging, resale of any kind of commercial usage without prior approval from Catfish Creative.
An Optimal Tunable Josephson Element for Quantum Computing
Creators: name: Chiarello, F.
name: Castellano, M. G.
name: Torrioli, G.
name: Poletto, S.
name: Cosmelli, C.
name: Carelli, P.
name: Balashov, D. V.
name: Khabipov, M. I.
name: Zorin, A. B.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We introduce a three-junction SQUID that can be effectively used as an optimal tunable element in Josephson quantum computing applications. This device can replace the simple dc SQUID generally used as tunable element in this kind of applications, with a series of advantages for the coherence time and for the tolerance to small errors. We study the device both theoretically and experimentally at 4.2 K, obtaining a good agreement between the results.
description: 3 pages, 4 figures
Cotton Mill Kid Tackles Duke And Nebraska
Creators: name: Stewart, Kenneth D.
Publisher: name: Maryland Shared Open Access Repository
Year: 2024

description: Maude Bullard and Jehu Stewart grew up on farms in central North Carolina. They left that life to work in a Duke Township, North Carolina cotton mill. Maude and Jehu met while working in that mill in their late teens and married six months later. Socially and economically, their three sons, Cecil, Tom, and Ken, are best described as southern smalltown cotton mill kids. This memoir focuses on Ken’s experiences as an undergraduate at Duke, a graduate student at the University of Nebraska, Lincoln (UNL), and during a pre-doctoral internship at Duke University Medical School. Despite economic disadvantages and self-doubts, Ken tackled every challenge head-on and succeeded through determination and the caring support of many Duke and UNL faculty members.
Pseudoscalar perturbations and polarization of the cosmic microwave background
Creators: name: Pospelov, Maxim
name: Ritz, Adam
name: Skordis, Constantinos
Publisher: name: arXiv
Year: 2008
Subjects: subject: Astrophysics (astro-ph)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We show that models of new particle physics containing massless pseudoscalar fields super-weakly coupled to photons can be very efficiently probed with CMB polarization anisotropies. The stochastic pseudoscalar fluctuations generated during inflation provide a mechanism for converting E-mode polarization to B-mode during photon propagation from the surface of last scattering. The efficiency of this conversion process is controlled by the dimensionless ratio H/(2πf_a), where H is the Hubble scale during inflation, and f_a^{-1} is the strength of the pseudoscalar coupling to photons. The current observational limits on the B-mode constrain this ratio to be less than 0.07, which in many models of inflation translates to a sensitivity to values of f_a in excess of 10^{14} GeV, surpassing the sensitivity of other tests.
description: 4 pages, 1 figure
Plasmonic engineering of metal nanoparticles for enhanced fluorescence and Raman scattering
Creators: name: Cade, N. I.
name: Ritman-Meer, T.
name: Richards, D.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Other Condensed Matter (cond-mat.other)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: We have investigated the effects of tuning the localized surface plasmon resonances (LSPRs) of silver nanoparticles on the fluorescence intensity, lifetime, and Raman signal from nearby fluorophores. The presence of a metallic structure can alter the optical properties of a molecule by increasing the excitation field, and by modifying radiative and non-radiative decay mechanisms. By careful choice of experimental parameters we have been able to decouple these effects. We observe a four-fold increase in fluorescence enhancement and an almost 30-fold increase in decay rate from arrays of Ag nanoparticles, when the LSPR is tuned to the emission wavelength of a locally situated fluorophore. This is consistent with a greatly increased efficiency for energy transfer from fluorescence to surface plasmons. Additionally, surface enhanced Raman scattering (SERS) measurements show a maximum enhancement occurs when both the incident laser light and the Raman signal are near resonance with the plasmon energy. Spatial mapping of the SERS signal from a nanoparticle array reveals highly localized differences in the excitation field resulting from small differences in the LSPR energy.
description: Submitted to Plasmonics (Springer)
Strong and radiative decays of the scalars f0(980) and a0(980) in a hadronic molecule approach
Creators: name: Branz, Tanja
name: Gutsche, Thomas
name: Lyubovitskij, Valery E.
Publisher: name: arXiv
Year: 2008
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We analyze the electromagnetic and strong decay properties of the light scalars a0(980) and f0(980) within a hadronic molecule interpretation. Both scalars are discussed within a covariant and gauge invariant model which also allows for finite size effects due to their spatially extended structure in the K Kbar-bound state picture. Allowing for f0-a0 mixing we also study its influence on the radiative decays f0/a0 to gamma gamma, f0/a0 to gamma omega, and f0/a0 to gamma rho as well as the phi production of the f0 and a0. Furthermore, we apply our formalism to describe the strong f0 to pi pi and a0 to pi eta decay properties.
description: 16 pages, 6 figures, typos corrected, accepted for publication in Phys. Rev. D
Angle-dependent ultrasonic transmission through plates with subwavelength hole arrays
Creators: name: Estrada, Hector
name: Candelas, Pilar
name: Uris, Antonio
name: Belmar, Francisco
name: de Abajo, F. J. Garcia
name: Meseguer, Francisco
Publisher: name: arXiv
Year: 2008
Subjects: subject: Other Condensed Matter (cond-mat.other)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: We study sound transmission in perforated plates as a function of incident angle and conclude that it holds distinctive properties that make it unique and essentially different from optical transmission through perforated metallic plates. More precisely, we conclude the following: (a) similar to its optical counterpart, acoustic transmission minima respond to Wood anomalies in which the periodicity plays a central role; (b) in contrast to both the optical case and the acoustical case with slits, homogeneous-plate modes (Lamb and Scholte-Stoneley modes) are strongly coupled to lattice and Fabry-Pérot resonances. This gives rise to unique transmission behavior, thus opening new perspectives for exotic wave phenomena.
description: 4 figures. Submitted to Phys. Rev. Lett
Gravity Waves and Linear Inflation from Axion Monodromy
Creators: name: McAllister, Liam
name: Silverstein, Eva
name: Westphal, Alexander
Publisher: name: arXiv
Year: 2008
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Astrophysics (astro-ph)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: Wrapped branes in string compactifications introduce a monodromy that extends the field range of individual closed-string axions to beyond the Planck scale. Furthermore, approximate shift symmetries of the system naturally control corrections to the axion potential. This suggests a general mechanism for chaotic inflation driven by monodromy-extended closed-string axions. We systematically analyze this possibility and show that the mechanism is compatible with moduli stabilization and can be realized in many types of compactifications, including warped Calabi-Yau manifolds and more general Ricci-curved spaces. In this broad class of models, the potential is linear in the canonical inflaton field, predicting a tensor to scalar ratio r=0.07 accessible to upcoming cosmic microwave background (CMB) observations.
description: pdfLaTeX, 40+1 pages, 4 figures
DEFINITION OF THE CONCEPT OF RESOURCE CAPACITY OF THE REGION
Creators: name: Semyhulin, P.
Publisher: name: Norwegian Journal of Development of the International Science
Year: 2021
Subjects: resources
capacity
potential
region
territory
socio-economic development
regional development management

description: The article is devoted to defining the concept of resource capacity of the region for further use in building an effective system of regional governance in Ukraine, effective use of available resources of territories to ensure socio-economic development through its own competitive advantages and opportunities and improving social living standards.
Low Energy Probes of CP Violation in a Flavor Blind MSSM
Creators: name: Altmannshofer, W.
name: Buras, A. J.
name: Paradisi, P.
Publisher: name: arXiv
Year: 2008
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We analyze the low energy implications of a flavor blind supersymmetric scenario (where the CKM matrix is the only source of flavor violation) in the presence of new CP violating but flavor conserving phases in the soft sector. We find that the best probes of this rather restricted scenario are i) the electric dipole moments (EDMs) of the electron (d_e) and the neutron (d_n) and ii) flavor changing and CP violating processes in B systems, like the CP asymmetries in b->s gamma and B->phi(eta^')K_S, i.e. A_CP(b->s gamma) and S_phi(eta^')K_S, respectively. The non-standard values for S_phi(eta^')K_S, measured at the B factories, can find a natural explanation within our scenario and this would unambiguously imply i) positive and often large (non-standard) values for A_CP(b->s gamma) and ii) a lower bound for the electron and neutron EDMs at the level of d_e,n > 10^-28 e cm. Moreover, we predict positive New Physics (NP) contributions to epsilon_K which could be welcomed in view of the recently lowered Standard Model value for epsilon_K. Interestingly, an explanation for the non-standard values for S_phi(eta^')K_S can also naturally lead to an explanation for the anomaly of the muon anomalous magnetic moment. Finally, we outline the role and the interplay of the direct NP searches at the LHC with the indirect searches performed by low energy flavor physics observables.
description: 7 pages, 8 figures. v3: Eq.(6) corrected, definition (3) changed, minor changes in the corresponding plots, conclusions unchanged
DERIVATION OF COULOMB'S LAW. MAGNETIC FIELD THEORY
Creators: name: Yalovenko, S.
Publisher: name: Norwegian Journal of Development of the International Science
Year: 2021
Subjects: Derivation Coulomb's law
electron structure
magnetic field
interaction of magnets

description: Coulomb's law is derived from the whirlpool concepts of the structure of particles. An electron is a whirlpool of an electromagnetic wave, which has the properties of a wave and a particle, as well as a rest mass, or more correctly, the moment of rotation of a wave rolled up by a whirlpool, by which we mean rest mass. The nature of the magnetic field and the interaction of magnets are considered. Experiments show that whirlpool and magnetic processes are similar phenomena. Images are created that contribute to a deeper understanding of the phenomenon of electromagnetism.
K-shell ionization cross sections of Cu, Zn and Ge by 3-5 MeV/U Si-ion bombardment
Creators: name: Singh, Shashank
name: Oswal, Mumtaz
name: Kumar, Sunil
name: Singh, K. P.
name: Mitra, D.
name: Nandi, T.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Atomic Physics (physics.atom-ph)
subject: FOS: Physical sciences

description: The K x-ray spectra of different targets (Cu, Zn, and Ge) induced by 3 to 5 MeV/u Si projectile ions have been measured to determine the K-shell ionization cross-section. A significant difference is observed between the measurements and theoretical estimates, where the theoretical ones are about 28-35% of the experimental results. Such difference is reduced to a good extent 51-56% if multiple ionization effects are taken into account. Remaining discrepancy may be attributed to the electron capture contribution.
description: 7 pages, 4 figures. arXiv admin note: substantial text overlap with arXiv:2103.08299
Effect of static shear on resistance to liquefaction
Creators: name: Chern, Jin-Ching
Publisher: name: University of British Columbia
Year: 2010

description: The influence of initial static shear stress on undrained cyclic loading behavior of saturated Ottawa sand has been studied using the triaxial test. Improved sample preparation techniques and testing equipment were employed to obtain samples of uniform density and minimize the effect of sample disturbance. Detailed study of the effective stress paths enabled understanding of the fundamental process leading to liquefaction or strain development. It was found that the resistance to liquefaction or cyclic straining for sand with initial static shear stress can either be higher or lower than that for sand with no initial static shear stress, depending on the relative density and the level of initial static shear stress.
Role of Surface Gravity Waves in Aquaplanet Ocean Climates
Creators: name: Studholme, Joshua
name: Markina, Margarita
name: Gulev, Sergey
Publisher: name: arXiv
Year: 2021
Subjects: subject: Atmospheric and Oceanic Physics (physics.ao-ph)
subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: Fluid Dynamics (physics.flu-dyn)
subject: Geophysics (physics.geo-ph)
subject: FOS: Physical sciences

description: We present a set of idealised numerical experiments of a solstitial aquaplanet ocean and examine the thermodynamic and dynamic implications of surface gravity waves (SGWs) upon its mean state. The aquaplanet's oceanic circulation is dominated by an equatorial zonal jet and four Ekman driven meridional overturning circulation (MOC) cells aligned with the westerly atmospheric jet streams and easterly trade winds in both hemispheres. Including SGW parameterization (representing modulations of air-sea momentum fluxes, Langmuir circulation and Stokes-Coriolis force) increases mixed layer vertical momentum diffusivity by approx. 40% and dampens surface momentum fluxes by approx. 4%. The correspondingly dampened MOC impacts the oceanic density structure to 1 km depth by lessening the large-scale advective transports of heat and salt, freshening the equatorial latitudes (where evaporation minus precipitation [E-P] is negative) and increasing salinity in the subtropics (where E-P is positive) by approx. 1%. The midlatitude pycnocline in both hemispheres is deepened by the inclusion of SGWs. Including SGWs into the aquaplanet ocean model acts to increase mixed layer depth by approx. 10% (up to 20% in the wintertime in midlatitudes), decrease vertical shear in the upper 200 m and alter local midlatitude buoyancy frequency. Generally, the impacts of SGWs upon the aquaplanet ocean are found to be consistent across cooler and warmer climates. We suggest that the implications of these simulations could be relevant to understanding future projections of SGW climate, exoplanetary oceans, and the dynamics of the Southern Ocean mixed layer.
DEVELOPMENT THE INDICATORS OF ECONOMY GREENING
Creators: name: Blaga, N.
name: Hobela, V.
name: Svatiuk, O.
Publisher: name: Norwegian Journal of Development of the International Science
Year: 2021
Subjects: indicator
security
environment
greening
sustainable development

description: The study was aimed at selecting the most optimal indicators for assessing the greening and environmental safety of the state. To do this, several literature sources and the majority of indicators for assessing the environment and environmental efficiency of economic activity were analyzed. The most optimal system of greening indicators was singled out. The analysis of pressure – state – reaction model indicators was carried out, its main advantages and disadvantages are determined. Based on research results study proposed to modify the pressure-state-reaction model, which will allow renewing the assessment of state’s environmental safety.
Phase diagram of the Ising square lattice with competing interactions
Creators: name: Kalz, A.
name: Honecker, A.
name: Fuchs, S.
name: Pruschke, T.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: We restudy the phase diagram of the 2D-Ising model with competing interactions $J_1$ on nearest neighbour and $J_2$ on next-nearest neighbour bonds via Monte-Carlo simulations. We present the finite temperature phase diagram and introduce computational methods which allow us to calculate transition temperatures close to the critical point at $J_2 = 0.5 J_1$. Further on we investigate the character of the different phase boundaries and find that the transition is weakly first order for moderate $J_2 > 0.5 J_1$.
description: 5 pages including 6 figures, accepted for publication in EPJ B
In Silico World - D6.2 Scalability Strategies Report
Creators: name: Zając, Karol
name: Meizner, Jan
name: Zhyhulin, Taras
Publisher: name: Zenodo
Year: 2024

description: The purpose of this deliverable is to provide a summary of scalability strategies adopted for the ISW project, including the deployment of tools such as the Model Execution Environment (MEE) [1] to manage the wide range of available resources and results of those actions.

Over the course of the project, Work Package 6 maintained interaction with developers of ISW computational models to enable these models to be executed on large-sale computing resources available to the consortium and to do so in an efficient and organized manner using a toolkit – based on the Model Execution Environment – which was further extended with additional features and integrated with external components of the ISW computational framework. Following this stage, WP6 coordinated large-scale production runs of ISW models, an activity which is ongoing as of the publication date of this deliverable, and which is expected to continue throughout the remainder of the project, and beyond.

The deliverable reports on the development work which took place in the context of WP6, and provides a summary of the status of integration of ISW computational models with the available computing infrastructure. Results of ongoing studies are also described.