cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Novel Gamma-ray Spectral Features in the Inert Doublet Model
Creators: name: Garcia-Cely, Camilo
name: Ibarra, Alejandro
Publisher: name: arXiv
Year: 2013
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: The inert doublet model contains a neutral stable particle which is an excellent dark matter candidate. We discuss in this paper the indirect signatures of this model in gamma-rays when the dark matter mass is larger than the $W$ boson mass. We show that, in addition to the featureless gamma-ray spectrum produced in the annihilations into two weak gauge bosons, the model generically predicts a distinctive spectral feature from the internal bremsstrahlung process $H^0 H^0 \rightarrow W^+ W^- γ$. We discuss under which conditions the spectral feature is generated and we construct a number of benchmark points, compatible with the observed relic density and all other direct and indirect detection experiments, which lead to a sharp gamma-ray feature from internal bremsstrahlung.
description: 21 pages, 6 figures. It matches published version in JCAP
Coulomb phase diagnostics as function of temperature, interaction range and disorder
Creators: name: Sen, Arnab
name: Moessner, R.
name: Sondhi, S. L.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: The emergent gauge field characteristic of the Coulomb phase of spin ice betrays its existence via pinch points in the spin structure factor ${\cal{S}}$ in reciprocal space which takes the form of a transverse projector ${\cal{P}}$ at low temperature: ${\cal{S}} (q) \sim {\cal{P}} \sim q^2_\bot/q^2$. We develop a theory which establishes the fate of the pinch points at low and high temperature, for hard and soft spins, for short- and long-ranged (dipolar) interactions, as well as in the presence of disorder. We find that their detailed shape can be used to read off the relative sizes of entropic and magnetic Coulomb interactions of monopoles in spin ice, and we resolve the question why pinch points have been experimentally observed for Ho$_{1.7}$Y$_{0.3}$Ti$_2$O$_7$ even at high temperature in the presence of strong disorder.
description: 4+ pages, 2 eps figures, published version
Development of a confocal rheometer for soft and biological materials
Creators: name: Dutta, S. K.
name: Mbi, A.
name: Arevalo, Richard C.
name: Blair, Daniel L.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: We discuss the design and operation of a confocal rheometer, formed by integrating an Anton Paar MCR301 stress-controlled rheometer with a Leica SP5 laser scanning confocal microscope. Combining two commercial instruments results in a system which is straightforward to assemble that preserves the performance of each component with virtually no impact on the precision of either device. The instruments are configured so that the microscope can acquire time-resolved, three-dimensional volumes of a sample whose bulk viscoelastic properties are being measured simultaneously. We describe several aspects of the design and, to demonstrate the system's capabilities, present the results of a few common measurements in the study of soft materials.
description: 9 pages, 7 figures
Specificity, flexibility and valence of DNA bonds guide emulsion architecture
Creators: name: Feng, Lang
name: Pontani, Lea-Laetitia
name: Dreyfus, Remi
name: Chaikin, Paul
name: Brujic, Jasna
Publisher: name: arXiv
Year: 2013
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: The specificity and thermal reversibility of DNA interactions have enabled the self-assembly of crystal structures, self-replicating materials and colloidal molecules. Grafting DNA onto liquid interfaces of emulsions leads to exciting new architectural possibilities due to the mobility of the DNA ligands and the patches they form between bound droplets. Here we show that the size and number of these adhesion patches (valency) can be controlled. Valence 2 leads to flexible polymers of emulsion droplets, while valence above 4 leads to rigid droplet networks. A simple thermodynamic model quantitatively describes the increase in the patch size with droplet radii, DNA concentration and the stiffness of the tether to the sticky-end. The patches are formed between droplets with complementary DNA strands or alternatively with complementary colloidal nanoparticles to mediate DNA binding between droplets. This emulsion system opens the route to directed self-assembly of more complex structures through distinct DNA bonds with varying strengths and controlled valence and flexibility.
description: This paper has been withdrawn by the author due to publication issue
READING STRATEGIES AND TEST OUTCOMES IN IELTS BY VIETNAMESE UNIVERSITY ENGLISH MAJORS
Creators: name: Nguyen, Thanh Quang
name: Le, Phuong Minh Ph.D
Publisher: name: ZAP journals
Year: 2023
Subjects: EFL Vietnamese students
IELTS reading test
reading strategies
test-taking techniques

description: This research focuses on understanding the challenges faced by Vietnamese university English majors in the context of the IELTS reading test and the corresponding strategies employed to address these challenges. The study encompasses eighty-nine participants from Can Tho University, utilizing a questionnaire distributed to all participants and interviews conducted with a randomly selected group of 10 students. Results indicate that Vietnamese English as a Foreign Language (EFL) students encounter various challenges in the IELTS reading test, with a notable emphasis on difficulties related to vocabulary limitations and time constraints. The findings further highlight the prevalent use of text-related, question-related, and general practical strategies by the students to navigate the IELTS reading test. In light of these results, recommendations include increased exposure to test scenarios and the integration of instructional support for test-taking strategies.
Structural decomposition analysis with disaggregate factors within the Leontief inverse: results
Creators: name: Muradov, Kirill
Publisher: name: figshare
Year: 2021
Subjects: subject: 140302 Econometric and Statistical Methods
subject: FOS: Economics and business
subject: 140305 Time-Series Analysis
subject: 149999 Economics not elsewhere classified

description: This dataset contains the results of the numerical experiment that was designed to identify the best-performing simplified solution to the problem of structural decomposition with disaggregate factors within the Leontief inverse. The problem and solutions are described in the manuscript submitted to and accepted by the Journal of Economic Structures. Below is the abstract from the manuscript.A trivial case in input-output structural decomposition analysis is a decomposition of a product of variables, or factors, where one factor is an inverse - typically Leontief inverse - of a sum of other factors. There may be dozens and hundreds of such factors that describe changes in subsets of technical coefficients. The existing literature offers ambiguous guidance in this case. The solution that is consistent with the index number theory is known to be cumbersome and may be virtually infeasible. The simplified ad hoc solutions require the researcher to make arbitrary choices, lead to biased estimates and do not ensure the consistency in aggregation of factors. This paper reviews the ad hoc solutions to the said problem and describes a numerical test to identify the best-performing solution. It is found that calculating the average of the two polar decomposition forms for each factor is superior to other approximations in terms of minimising the errors.
Improving the Drell-Yan probe of small x partons at the LHC via a k_t cut
Creators: name: de Oliveira, E. G.
name: Martin, A. D.
name: Ryskin, M. G.
Publisher: name: arXiv
Year: 2012
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We show that the observation of the Drell-Yan production of low-mass lepton-pairs (M < 20 GeV) at high rapidities (Y > 3) at the LHC can make a direct measurement of parton distribution functions (PDFs) in the low x region, x < 10^{-4}. We describe a procedure that greatly reduces the sensitivity of the predictions to the choice of the factorization scale and, in particular, show how, by imposing a cutoff on the transverse momentum of the lepton-pair, the data are able to probe PDFs in the important low scale, low x domain. We include the effects of the Sudakov suppression factor.
description: 14 pages, 5 figures, version to be published in EPJC, with expanded explanation
Multi-Trial Guruswami--Sudan Decoding for Generalised Reed--Solomon Codes
Creators: name: Nielsen, Johan Sebastian Rosenkilde
name: Zeh, Alexander
Publisher: name: arXiv
Year: 2013
Subjects: subject: Information Theory (cs.IT)
subject: FOS: Computer and information sciences

description: An iterated refinement procedure for the Guruswami--Sudan list decoding algorithm for Generalised Reed--Solomon codes based on Alekhnovich's module minimisation is proposed. The method is parametrisable and allows variants of the usual list decoding approach. In particular, finding the list of \emph{closest} codewords within an intermediate radius can be performed with improved average-case complexity while retaining the worst-case complexity.
description: WCC 2013 International Workshop on Coding and Cryptography (2013)
Superconductivity induced by hydrogen anion substitution in 1111-type iron arsenides
Creators: name: Hosono, Hideo
name: Matsuishi, Satoru
Publisher: name: arXiv
Year: 2013
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: Hydrogen is the simplest bipolar element and its valence state can be controlled from +1 to -1. We synthesized the 1111-type CaFeAsH and LnFeAsO1-xHx (Ln = lanthanide) with the ZrCuSiAs type structure by a high-pressure synthesis method. The position and valence state of the substituted H were determined by neutron diffraction and density functional theory calculations. The close similarity in the structural and electrical properties of CaFeAsH and CaFeAsF indicated the formation of the hydride ion (H-), which is isovalent with the fluoride ion (F-), in the 1111-type iron arsenides. When some of the O2- ions in LnFeAsO are replaced by H-, superconductivity is induced by electron doping to the FeAs-layer to maintain charge neutrality. Since the substitution limit of hydrogen in LnFeAsO (x~0.5) is much higher than that of fluorine (x~0.2), the hydrogen substitution technique provides an effective pathway for high-density electron-doping, making it possible to draw the complete electronic phase diagram of LnFeAsO. The x-T diagrams of LnFeAsO1-xHx (Ln = La, Ce, Sm, Gd) have a wide superconducting (SC) region spanning the range x = 0.04 to 0.4, which is far from the parent antiferromagnetic region near x = 0.0. For Ln=La, another SC dome region was found in the range x = ~ 0.2 to ~0.5 with a maximum Tc = 36 K, in addition to a conventional SC dome located at x ~0.08 with maximum Tc = 29 K. Density functional theory calculations performed for LaFeAsO1-xHx indicated that the newly observed Tc is correlated with the appearance of degeneration of the Fe 3d bands (dxy, dyz and dzx), which is caused not only by regularization of the tetrahedral shape of FeAs4 due to chemical pressure effects but also by selective band occupation with doped electrons. In this article, we review the recent progress of superconductivity in iron (oxy)arsenides and related compounds induced by hydrogen substitution.
description: to appear in Current Opinion. Solid State and Materials Science
Two-dimensional crystals of Rydberg excitations in a resonantly driven lattice gas
Creators: name: Petrosyan, David
Publisher: name: arXiv
Year: 2013
Subjects: subject: Quantum Gases (cond-mat.quant-gas)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: The competition between resonant optical excitation of Rydberg states of atoms and their strong, long-range van der Waals interaction results in spatial ordering of Rydberg excitations in a two-dimensional lattice gas, as observed in a recent experiment of Schauß et al. [Nature 491, 87 (2012)]. Here we use semiclassical Monte Carlo simulations to obtain stationary states for hundreds of atoms in finite-size lattices. We show the formation of regular spatial structures of Rydberg excitations in a system of increasing size, and find highly sub-Poissonian distribution of the number of Rydberg excitations characterized by a large negative value of the Mandel Q parameter which is nearly independent of the system size.
description: modified, expanded ms
Total and selective reuse of Krylov subspaces for the resolution of sequences of nonlinear structural problems
Creators: name: Gosselet, Pierre
name: Rey, Christian
name: Pebrel, Julien
Publisher: name: arXiv
Year: 2013
Subjects: subject: Numerical Analysis (math.NA)
subject: FOS: Mathematics

description: This paper deals with the definition and optimization of augmentation spaces for faster convergence of the conjugate gradient method in the resolution of sequences of linear systems. Using advanced convergence results from the literature, we present a procedure based on a selection of relevant approximations of the eigenspaces for extracting, selecting and reusing information from the Krylov subspaces generated by previous solutions in order to accelerate the current iteration. Assessments of the method are proposed in the cases of both linear and nonlinear structural problems.
description: International Journal for Numerical Methods in Engineering (2013) 24 pages
Аналіз існуючих типів віртуальних спільнот у мережі Інтернет та побудова моделі віртуальної спільноти на основі веб-форуму
Creators: name: А.М., Пелещишин
name: Б., Кравець Р.
name: О., Сєров Ю.
Publisher: name: figshare
Year: 2021
Subjects: subject: Computer Software
subject: FOS: Computer and information sciences
subject: 80602 Computer-Human Interaction
subject: FOS: Psychology
subject: Computer Engineering
subject: 80303 Computer System Security
subject: Applied Computer Science

description: In this paper existing types of virtual communities and their features were analyzed. Formal model of virtual community and web forum was developed.
Voltage-controlled spin injection with an endohedral fullerene CoC$_{60}$ dimer
Creators: name: Saffarzadeh, Alireza
name: Kirczenow, George
Publisher: name: arXiv
Year: 2013
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: Spin-dependent transport through an endohedral fullerene Co@C$_{60}$ dimer with gold electrodes is explored theoretically using density functional and extended Hückel theory. Density of states spin polarizations up to 95%, due to spin-splitting of Co 3d orbitals, are found by varying the gate and/or bias voltage. The current-voltage characteristics and strong (up to 100%) spin polarization of the current indicate that the device can be utilized for highly efficient spin injection into nonmagnetic conductors. This finding opens the way to the realization of electrostatically tuned spintronic nano devices less than 2 nanometers in size, without ferromagnetic electrodes.
description: 5 pages, 4 figures
Interplay between finite resources and local defect in an asymmetric simple exclusion process
Creators: name: Cook, L. Jonathan
name: Dong, J. J.
name: LaFleur, Alexander
Publisher: name: arXiv
Year: 2013
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: When particle flux is regulated by multiple factors such as particle supply and varying transport rate, it is important to identify the respective dominant regimes. We extend the well-studied totally asymmetric simple exclusion model to investigate the interplay between a controlled entrance and a local defect site. The model mimics cellular transport phenomena where there is typically a finite particle pool and non-uniform moving rates due to biochemical kinetics. Our simulations reveal regions where, despite an increasing particle supply, the current remains constant while particles redistribute in the system. Exploiting a domain wall approach with mean-field approximation, we provide a theoretical ground for our findings. The results in steady state current and density profiles provide quantitative insights into the regulation of the transcription and translation process in bacterial protein synthesis. We investigate the totally asymmetric simple exclusion model with controlled entrance and a defect site in the bulk to mimic the finite particle pool and non-uniform moving rates in particle transport processes.
description: 9 pages, 12 figures; v2: minor format changes; v3: major revision, additional references; v4: minor format change to figures, additional references
Surjectivity of Galois representations associated with quadratic Q-curves
Creators: name: Fourn, Samuel Le
Publisher: name: arXiv
Year: 2012
Subjects: subject: Number Theory (math.NT)
subject: FOS: Mathematics

description: We prove in this paper an uniform surjectivity result for Galois representations associated with non-CM $\mathbb{Q}$-curves over imaginary quadratic fields, using various tools for the proof, such as Mazur's method, isogeny theorems, Runge's method and analytic estimates of sums of $L$-functions.
description: 31 pages, minor corrections
Twists of automorphic L-functions at the central point
Creators: name: Bui, H. M.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Number Theory (math.NT)
subject: FOS: Mathematics

description: We study the nonvanishing of twists of automorphic L-functions at the centre of the critical strip. Given a primitive character χmodulo D satisfying some technical conditions, we prove that the twisted L-functions L(f.χ,s) do not vanish at s=1/2 for a positive proportion of primitive forms of weight 2 and level q, for large prime q. We also investigate the central values of high derivatives of L(f.χ,s), and from that derive an upper bound for the average analytic rank of the studied L-functions.
Dynamical systems and σ-symmetries
Creators: name: Cicogna, Giampaolo
name: Gaeta, Giuseppe
name: Walcher, Sebastian
Publisher: name: arXiv
Year: 2013
Subjects: subject: Mathematical Physics (math-ph)
subject: Dynamical Systems (math.DS)
subject: FOS: Physical sciences
subject: FOS: Mathematics
subject: 34C14, 34A34, 34A05, 53A55

description: A deformation of the standard prolongation operation, defined on sets of vector fields in involution rather than on single ones, was recently introduced and christened "σ-prolongation"; correspondingly one has "σ-symmetries" of differential equations. These can be used to reduce the equations under study, but the general reduction procedure under σ-symmetries fails for equations of order one. In this note we discuss how σ-symmetries can be used to reduce dynamical systems, i.e. sets of first order ODEs in the form dx^a/dt = f^a (x).
Associated Production of Different Flavor Heavy Quarks Through $W'$ Bosons at the LHC
Creators: name: Cakir, I. T.
name: Senol, A.
name: Tasci, A. T.
Publisher: name: arXiv
Year: 2012
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: Associated production of different flavor heavy quarks can provide a probe for $W'$ bosons at the LHC. We study $pp\to t'\bar{b'}X$ process with the subsequent decays $t'\to W^+b$ and $\bar{b'}\to W^-W^+\bar b$, and compare the results with the $t\bar{b}$ final state. The effects of the $W'$ boson to the different flavor pair production cross section are shown to be important in some parameter region for the heavy quark masses of 600 and 700 GeV. We present accessible mass limits for the $W'$ boson at the LHC with $\sqrt s$=14 TeV.
description: 7 pages, 2 figures
Surface plasmon polaritons on soft-boundary graphene nanoribbons and their application as voltage controlled plasmonic switches and frequency demultiplexers
Creators: name: Forati, Ebrahim
name: Hanson, George W.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Optics (physics.optics)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: A graphene sheet gated with a ridged ground plane, creating a soft-boundary (SB) graphene nanoribbon, is considered. By adjusting the ridge parameters and bias voltage a channel can be created on the graphene which can guide TM surface plasmon polaritons (SPP). Two types of modes are found; fundemental and higher-order modes with no apparent cutoff frequency and with energy distributed over the created channel, and edge modes with energy concen-trated at the soft-boundary edge. Dispersion curves, electric near-field patterns, and current distributions of these modes are determined. Since the location where energy is concentrated in the edge modes can be easily controlled electronically by the bias voltage and frequency, the edge-mode phenomena is used to propose a novel voltage controlled plasmonic switch and a plasmonic frequency demultiplexer.
La diversità dei dati della ricerca: una strategia comune in un contesto multidisciplinare
Creators: name: Coppini, Sara
Publisher: name: Zenodo
Year: 2023
Subjects: Data Steward
Open Science
University of Bologna
Research Data
Research Data Management
Data Management Plan

description: Presentazione nel contesto della conferenza GARR 2023 di un progetto di mappatura dei dati della ricerca prodotti o gestiti all'Università di Bologna, portato avanti dal gruppo dei data steward di ateneo. La presentazione illustra brevemente il contesto istituzionale e internazionale in cui si situa il lavoro di ricerca e il progetto Data Steward @ UniBO, per poi descrivere il contenuto, gli obiettivi e la metodologia di sviluppo della mappatura, con le fasi compiute e i prossimi sviluppi del lavoro.
Example Data and Labels for Raugh and Hughes (2021)
Creators: name: Raugh, Anne
Publisher: name: Zenodo
Year: 2021

description: This file set uses a single image (HV05070405_9000928_001_RR_FIT) from the Deep Impact PDS3 data set DIF-C-HRIV-3/4-9P-ENCOUNTER-V3.0 to demonstrate the effect of several different labeling errors on how the image is displayed in a standards PDS (Planetary Data System) viewer. The original, archival FITS data file and PDS3 label are included for reference, but the images for the publication were created by stripping off the FITS header and providing minimal PDS4 labels to access the data directly. The pds4_viewer software available from the PDS was used to produce the individual images ultimately combined into the PNG included as "Figure 4" in a paper submitted by Raugh and Hughes to the Planetary Science Journal for publication as part of the Mike A'Hearn issue of the PSJ. In addition to the original data and label, this file set includes four minimal PDS4 labels that read the same data file, the data segment of the archival FITS file, and both PNG and PDF versions of the submitted "Figure 4".
description: {"references": ["McLaughlin, S.A., B. Carcich, S.E. Sackett, T. McCarthy, M. Desnoyer, K.P. Klaasen, and D.W. Wellnitz, DEEP IMPACT 9P/TEMPEL ENCOUNTER - REDUCED HRIV IMAGES V3.0, DIF-C-HRIV-3/4-9P-ENCOUNTER-V3.0:HV05070405_9000928_001_RR_FIT, NASA Planetary Data System, 2014."]}
title: Isolamento sismico di edifici in c.a. esposti all'azione del fuoco: progettazione, modellazione ed analisi termica e dinamica non lineare
Creators: name: Alesina, Fabio
name: Furgiuele, Franco
name: Mazza, Fabio
Publisher: name: Università della Calabria
Year: 2019

description: Dottorato di Ricerca in Ingegneria Civile e Industriale, Ciclo XXXI
Evolution of neutron star + He star binaries: an alternative evolutionary channel to intermediate-mass binary pulsars
Creators: name: Chen, Wen-Cong
name: Liu, Wei-Min
Publisher: name: arXiv
Year: 2013
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: It is difficult for intermediate-mass X-ray binaries to form compact intermediate-mass binary pulsars (IMBPs) with a short orbital-period ($\la 3 \rm d$), which have a heavy ($\ga 0.4 M_{\odot}$) CO or ONeMg white dwarf companions. Since neutron star + He star binaries may experience common-envelope evolution, they have some advantage to account for the formation of short orbital-period IMBPs. In this work, we explore the probability of IMBPs formed by this evolutionary channel. Using Eggleton's stellar evolution code, considering that the dead pulsars were spun up by the accreting material and angular momentum from the He star companions, we have calculated the evolution of a large number of neutron star + He star binaries. Our simulated results indicate that, the NS + He star evolutionary channel can produce IMBPs with a WD of $\sim0.5 - 1.1 M_{\odot}$ and an orbital period of $0.03 - 20$ d, in which pulsars have a spin-period of $1.4 - 200$ ms. Comparing the calculated results with the observational parameters (spin period and orbital period) of 9 compact IMBPs, the NS + He star evolutionary channel can account for the formation of 4 sources. Therefore, NS + He star binaries offer an alternative evolutionary channel to compact IMBPs.
description: 5 pages, 4 figures, accepted for publication in MNRAS letters
Cremastogaster Lund (Cremastogaster 1831
Creators: name: Forel, A.
Publisher: name: L'Imprimerie Nationale
Year: 1891
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Hymenoptera
Formicidae
Cremastogaster

description: Genre CREMASTOGASTER.
Cremastogaster, Lund, Annales des Sciences naturelles (1831).
Acrocoelia, Mayr, Verh. Zool. und Bot. Gesellschaft zu Wien (1852).
[[worker]] et [[queen]]. Pas de carène au côté externe de la fosse antennaire. Epistome prolongé postérieurement entre les insertions des antennes. Arêtes frontales vers le milieu de la face antérieure de la tête (et non au bord latéral). Antennes de dix ou de onze articles; massue de deux ou de trois articles. Mandibules triangulaires (rarement aplaties ou cylindriques et pointues chez la [[queen]]). Palpes maxillaires de cinq, labiaux de trois articles. Premier n œ ud du pédicule aplati dessus. Second n œ ud du pédicule inséré sur le dos du premier segment abdominal (et non sur sa face antérieure). Abdomen subcordiforme, pointu à son extrémité postérieure, pouvant être relevé en haut et en avant jusqu'à venir toucher la tête de son extrémité.
[[male]]. Pas de carène au côté externe de la fosse antennaire. Antennes de douze articles. Scape très court. Funicule filiforme à premier article sphérique, gros. Mésonotum ordinairement sans sillons convergents. Mé- tanotum inerme. Abdomen et insertion du pédicule comme chez la [[worker]] et la [[queen]]. Ailes antérieures avec une cellule cubitale; la nervure transverse s'unit au rameau cubital externe. Cellule radiale ouverte.
Ce genre considérable, si nettement caractérisé par l'articulation du pédicule sur le dos de l'abdomen et par l'habitude qu'ont les [[worker]] de relever l'abdomen jusqu'au delà de leur tête et de le diriger contre tout ennemi qui les effraye, genre répandu dans le monde entier, est représenté à Madagascar par onze espèces et une race, dont huit espèces et une race propres à cette île. Trois espèces diffèrent de toutes les espèces connues du reste du monde par leurs antennes qui n'ont que dix articles.
(A) Antennes de dix articles chez la [[worker]] et la [[queen]].
description: Published as part of Forel, A., 1891, Histoire naturelle des Hymenopteres. Deuxieme partie: Les Formicides., pp. 1-231 in Histoire Physique, Naturelle et Politique de Madagascar., Paris :L'Imprimerie Nationale on pages 179-180, DOI: 10.5281/zenodo.9896
Алгоритм валідації інтернет-імен користувачів віртуальних спільнот
Creators: name: Fedushko, Solomia
name: Yu., Syerov
Publisher: name: figshare
Year: 2019
Subjects: subject: 80505 Web Technologies (excl. Web Search)
subject: FOS: Computer and information sciences
subject: 80612 Interorganisational Information Systems and Web Services

description: This article considers the current problem of investigation and development of members’ internet-names validation methods on web-community. Also, the member’s internet-name validation algorithm and “Username analyzer” utility is developed.
Non-Drude universal scaling laws for the optical response of local Fermi liquids
Creators: name: Berthod, Christophe
name: Mravlje, Jernej
name: Deng, Xiaoyu
name: Žitko, Rok
name: van der Marel, Dirk
name: Georges, Antoine
Publisher: name: arXiv
Year: 2012
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: We investigate the frequency and temperature dependence of the low-energy electron dynamics in a Landau Fermi liquid with a local self-energy. We show that the frequency and temperature dependencies of the optical conductivity obey universal scaling forms, for which explicit analytical expressions are obtained. For the optical conductivity and the associated memory function, we obtain a number of surprising features that differ qualitatively from the Drude model and are universal characteristics of a Fermi liquid. Different physical regimes of scaling are identified, with marked non-Drude features in the regime where hbar omega ~ kB T. These analytical results for the optical conductivity are compared to numerical calculations for the doped Hubbard model within dynamical mean-field theory. For the "universal" low-energy electrodynamics, we obtain perfect agreement between numerical calculations and analytical scaling laws. Both results show that the optical conductivity displays a non-Drude "foot", which could be easily mistaken as a signature of breakdown of the Fermi liquid, while it actually is a striking signature of its applicability. The aforementioned scaling laws provide a quantitative tool for the experimental identification and analysis of the Fermi-liquid state using optical spectroscopy, and a powerful method for the identification of alternative states of matter, when applicable.
description: Published version
Regenerating Arbitrary Video Sequences with Distillation Path-Finding
Creators: name: Le, Thi-Ngoc-Hanh
name: Yao, Sheng-Yi
name: Wu, Chun-Te
name: Lee, Tong-Yee
Publisher: name: arXiv
Year: 2023
Subjects: subject: Computer Vision and Pattern Recognition (cs.CV)
subject: FOS: Computer and information sciences

description: If the video has long been mentioned as a widespread visualization form, the animation sequence in the video is mentioned as storytelling for people. Producing an animation requires intensive human labor from skilled professional artists to obtain plausible animation in both content and motion direction, incredibly for animations with complex content, multiple moving objects, and dense movement. This paper presents an interactive framework to generate new sequences according to the users' preference on the starting frame. The critical contrast of our approach versus prior work and existing commercial applications is that novel sequences with arbitrary starting frame are produced by our system with a consistent degree in both content and motion direction. To achieve this effectively, we first learn the feature correlation on the frameset of the given video through a proposed network called RSFNet. Then, we develop a novel path-finding algorithm, SDPF, which formulates the knowledge of motion directions of the source video to estimate the smooth and plausible sequences. The extensive experiments show that our framework can produce new animations on the cartoon and natural scenes and advance prior works and commercial applications to enable users to obtain more predictable results.
description: This paper has been accepted for publication on IEEE Transactions on Visualization and Computer Graphics (TVCG), January 2023. Project website: http://graphics.csie.ncku.edu.tw/SDPF
E-Commerce and E-Health Strategies and Implementation Activities in the United Kingdom: Review Study
Creators: name: Fedushko, Solomia
name: Shevchuk, Liubov
name: Poritska, Anastasiia
name: Kravets, Ruslan
name: Tymovchak-Maksymets, Oksana
Publisher: name: figshare
Year: 2021
Subjects: subject: 80602 Computer-Human Interaction
subject: FOS: Psychology
subject: Computer Engineering
subject: Applied Computer Science
subject: 100503 Computer Communications Networks
subject: FOS: Electrical engineering, electronic engineering, information engineering
subject: 80303 Computer System Security
subject: FOS: Computer and information sciences
subject: Computer Software
subject: 120304 Digital and Interaction Design
subject: FOS: Arts (arts, history of arts, performing arts, music)
subject: Digital Humanities
subject: 200102 Communication Technology and Digital Media Studies
subject: FOS: Media and communications
subject: Theoretical Computer Science
subject: 190202 Computer Gaming and Animation
subject: 100699 Computer Hardware not elsewhere classified

description: This study deals with the review of e-commerce and e-health. The investigation of e-commerce and e-health in the United Kingdom is proposed. The related works of e-commerce and e-health sectors is analysed. The world market for e-commerce is studied.This study deals with the review of e-commerce and e-health. The investigation of e-commerce and e-health in the United Kingdom is proposed. The related works of e-commerce and e-health sectors is analysed. The world market for e-commerce is studied.
An Experiment on Parallel Model Checking of a CTL Fragment
Creators: name: Saad, Rodrigo Tacla
name: Zilio, Silvano Dal
name: Berthomieu, Bernard
Publisher: name: arXiv
Year: 2013
Subjects: subject: Logic in Computer Science (cs.LO)
subject: Distributed, Parallel, and Cluster Computing (cs.DC)
subject: FOS: Computer and information sciences

description: We propose a parallel algorithm for local, on the fly, model checking of a fragment of CTL that is well-suited for modern, multi-core architectures. This model-checking algorithm takes bene t from a parallel state space construction algorithm, which we described in a previous work, and shares the same basic set of principles: there are no assumptions on the models that can be analyzed; no restrictions on the way states are distributed; and no restrictions on the way work is shared among processors. We evaluate the performance of diff erent versions of our algorithm and compare our results with those obtained using other parallel model checking tools. One of the most novel contributions of this work is to study a space-e fficient variant for CTL model-checking that does not require to store the whole transition graph but that operates on a reverse spanning tree.
description: 10th International Symposium, ATVA 2012, Automated Technology for Verification and Analysis, Thiruvananthapuram : India (2012)
Single-File Diffusion in an Interval: First Passage Properties
Creators: name: Ryabov, Artem
Publisher: name: arXiv
Year: 2013
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: We investigate the long-time behavior of the survival probability of a tagged particle in a single-file diffusion in a finite interval. The boundary conditions are of two types: 1) one boundary is absorbing the second is reflecting, 2) both boundaries are absorbing. For each type of the boundary conditions we consider two types of initial conditions: a) initial number of particles N is given, b) initial concentration of particles is given (N is random). In all four cases the tagged-particle survival probability exhibits different asymptotic behavior. When the both boundaries are absorbing we also consider a case of a random interval length (single-file diffusion on a line with randomly distributed traps). In the latter setting, the initial concentration of particles has the same effect on the asymptotic decay of the survival probability as the concentration of traps.
Proof of Heisenberg's error-disturbance relation
Creators: name: Busch, Paul
name: Lahti, Pekka
name: Werner, Reinhard F.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: While the slogan "no measurement without disturbance" has established itself under the name Heisenberg effect in the consciousness of the scientifically interested public, a precise statement of this fundamental feature of the quantum world has remained elusive, and serious attempts at rigorous formulations of it as a consequence of quantum theory have led to seemingly conflicting preliminary results. Here we show that despite recent claims to the contrary [Rozema et al, Phys. Rev. Lett. 109, 100404 (2012)], Heisenberg-type inequalities can be proven that describe a trade-off between the precision of a position measurement and the necessary resulting disturbance of momentum (and vice versa). More generally, these inequalities are instances of an uncertainty relation for the imprecisions of any joint measurement of position and momentum. Measures of error and disturbance are here defined as figures of merit characteristic of measuring devices. As such they are state independent, each giving worst-case estimates across all states, in contrast to previous work that is concerned with the relationship between error and disturbance in an individual state.
description: Version 2 contains a more explicit description of the significance of the error-disturbance relation, formulated here for figures of merit of measuring devices, and its contrast with approaches that use state-dependent measures of error and disturbance
Методи відстеження появи небажаного інформаційного наповнення Веб-форумуМетоди відстеження появи небажаного інформаційного наповнення Веб-форуму
Creators: name: Yuriy, Syerov
name: Fedushko, Solomia
name: A., Peleshchyshyn
name: R., Ktavets
name: Р.Б., Кравець
name: А.М., Пелещишин
name: Yu., Syerov
Publisher: name: figshare
Year: 2021
Subjects: subject: 80505 Web Technologies (excl. Web Search)
subject: FOS: Computer and information sciences
subject: 80612 Interorganisational Information Systems and Web Services

description: This article considers the current problem of investigation and development of objectionable content monitoring methods on Web-forums. Also, the level of communicative culture of web-forum members is investigated and Web-forum moderators andadministrators' communicative behaviour styles are developed.
Аналіз архітектури та сучасних тенденцій розвитку віртуальних спільнот
Creators: name: Fedushko, Solomia
Publisher: name: figshare
Year: 2019
Subjects: subject: 80505 Web Technologies (excl. Web Search)
subject: FOS: Computer and information sciences
subject: 80612 Interorganisational Information Systems and Web Services

description: This paper deals with the problems of solving the important scientific issue of analysis of the virtual communities’ architecture. The modern tendencies of development of virtual communities are proposed. The ways to improve the efficiency of web-communities are developed and classifications of participants in virtual communities are offered.
title: Analisi di eventi pluviometrici ad elevata intensità al sud Italia
Creators: name: Greco, Aldo
name: Furgiuele, Franco
name: De Luca, Davide Luciano
Publisher: name: Università della Calabria
Year: 2019

description: Dottorato di Ricerca in Ingegneria Civile e Industriale, Ciclo XXXI
title: Analisi dei processi idraulici in terreni insaturi, potenzialmente instabili, attraverso la sperimentazione con modello fisico in scala
Creators: name: Spolverino, Gennaro
name: Furgiuele, Franco
name: Capparelli, Giovanna
Publisher: name: Università della Calabria
Year: 2019

description: Dottorato di Ricerca in Ingegneria Civile e Industriale, Ciclo XXXI
Комп’ютерно-лінгвістичні методи перевірки достовірності персональних даних користувачів Веб-спільнот
Creators: name: Fedushko, Solomia
Publisher: name: figshare
Year: 2021
Subjects: subject: 80709 Social and Community Informatics
subject: FOS: Media and communications
subject: 80609 Information Systems Management
subject: FOS: Computer and information sciences
subject: Information Systems
subject: 80606 Global Information Systems

description: This article considers current problem of investigation and development of authentication of the given Web-forum member’s personal data. Methods of gender and agedifferences of Web-forum member’s messages are investigated.
The morphology of the ejecta in Supernova 1987A: a study over time and wavelength
Creators: name: Larsson, Josefin
name: Fransson, Claes
name: Kjaer, Karina
name: Jerkstrand, Anders
name: Kirshner, Robert P.
name: Leibundgut, Bruno
name: Lundqvist, Peter
name: Mattila, Seppo
name: McCray, Richard
name: Sollerman, Jesper
name: Spyromilio, Jason
name: Wheeler, J. Craig
Publisher: name: arXiv
Year: 2012
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: We present a study of the morphology of the ejecta in Supernova 1987A based on images and spectra from the HST as well as integral field spectroscopy from VLT/SINFONI. The HST observations were obtained between 1994 - 2011 and primarily probe the outer hydrogen-rich zones of the ejecta. The SINFONI observations were obtained in 2005 and 2011 and instead probe the [Si I]/[Fe II] emission from the inner regions. We find a strong temporal evolution of the morphology in the HST images, from a roughly elliptical shape before ~5,000 days, to a more irregular, edge-brightened morphology thereafter. This transition is a natural consequence of the change in the dominant energy source powering the ejecta, from radioactive decay before ~5,000 days to X-ray input from the circumstellar interaction thereafter. The [Si I]/[Fe II] images display a more uniform morphology, which may be due to a remaining significant contribution from radioactivity in the inner ejecta and the higher abundance of these elements in the core. Both the H-alpha and the [Si I]/[Fe II] line profiles show that the ejecta are distributed fairly close to the plane of the inner circumstellar ring, which is assumed to define the rotational axis of the progenitor. The H-alpha emission extends to higher velocities than [Si I]/[Fe II] as expected. There is no clear symmetry axis for all the emission and we are unable to model the ejecta distribution with a simple ellipsoid model with a uniform distribution of dust. Instead, we find that the emission is concentrated to clumps and that the emission is distributed somewhat closer to the ring in the north than in the south. This north-south asymmetry may be partially explained by dust absorption. We compare our results with explosion models and find some qualitative agreement, but note that the observations show a higher degree of large-scale asymmetry.
description: Accepted for publication in ApJ
Real-Time Specification Patterns and Tools
Creators: name: Abid, Nouha
name: Zilio, Silvano Dal
name: Botlan, Didier Le
Publisher: name: arXiv
Year: 2013
Subjects: subject: Software Engineering (cs.SE)
subject: FOS: Computer and information sciences

description: An issue limiting the adoption of model checking technologies by the industry is the ability, for non-experts, to express their requirements using the property languages supported by verification tools. This has motivated the definition of dedicated assertion languages for expressing temporal properties at a higher level. However, only a limited number of these formalisms support the definition of timing constraints. In this paper, we propose a set of specification patterns that can be used to express real-time requirements commonly found in the design of reactive systems. We also provide an integrated model checking tool chain for the verification of timed requirements on TTS, an extension of Timed Petri Nets with data variables and priorities.
description: An extended version of this paper appears as Research Report LAAS No. 11364, June 2011. 17th International Workshop on Formal Methods for Industrial Critical Systems, FMICS 2012, Paris : France (2012)
title: Domain specific languages for parallel numerical modeling on structured grids
Creators: name: De Rango, Alessio
name: Leone, Nicola
name: D'Ambrosio, Donato
name: Spataro, William
name: Mudalige, Gihan
Publisher: name: Università della Calabria
Year: 2019

description: Dottorato di Ricerca in Matematica ed Informatica. Ciclo XXXI
Transport across a junction of topological insulators and a superconductor
Creators: name: Soori, Abhiram
name: Deb, Oindrila
name: Sengupta, K.
name: Sen, Diptiman
Publisher: name: arXiv
Year: 2013
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We study transport across a line junction lying between two orthogonal topological insulator surfaces and a superconductor which can have either s-wave (spin-singlet) or p-wave (spin-triplet) pairing symmetry. We present a formalism for studying the effect of a general time-reversal invariant barrier at the junction and show that such a barrier can be completely described by three arbitrary parameters. We compute the charge and the spin conductance across such a junction and study their behaviors as a function of the bias voltage applied across the junction and the three parameters used to characterize the barrier. We find that the presence of topological insulators and a superconductor leads to both Dirac and Schrodinger-like features in charge and spin conductances. We discuss the effect of bound states on the superconducting side of the barrier on the conductance; in particular, we show that for triplet p-wave superconductors such a junction may be used to determine the spin state of its Cooper pairs. Our study reveals that there is a non-zero spin conductance for some particular spin states of the triplet Cooper pairs; this is an effect of the topological insulators which break the spin rotation symmetry. Finally, we find an unusual satellite peak (in addition to the usual zero bias peak) in the spin conductance for p-wave symmetry of the superconductor order parameter.
description: 16 pages, 9 figures