cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
ВЛИЯНИЕ ФОРМЫ ВЗАИМООТНОШЕНИЙ СОЦИАЛЬНОЙ СРЕДЫ НА ПСИХИЧЕСКОЕ РАЗВИТИЕ РЕБЁНКА
Creators: name: Джумабаева, Манзура
Publisher: name: Zenodo
Year: 2023

description: В данной статье показаны психологические процессы формирования самооценки и уверенности в себе, а также особенности формирования образа Я у застенчивых детей. В этом процессе раскрывается роль родителей и даны практические рекомендации.
‘Great Central Railway’ – Feasibility Study Immersive Digital Story
Creators: name: Turpin, Holly
Publisher: name: Loughborough University
Year: 2024

description: A 360 degree narrated video.

A co-created immersive digital story from a feasibility study part of the PhD research 'Understanding Homelessness in Loughborough Through Co-Creative Immersive Digital Storytelling'.
THE INTEGRATION OF DIGITAL TECHNOLOGIES IN TEACHING FOREIGN LANGUAGES IN HIGHER EDUCATION: A MODERN PEDAGOGICAL APPROACH
Creators: name: Azadov, Azizbek
Publisher: name: Zenodo
Year: 2025

description: The digital transformation of education has brought about significant changes to how foreign languages are taught in higher education institutions. This article explores the integration of digital technologies in foreign language teaching, highlighting their potential to enhance language acquisition, improve student engagement, and transform traditional pedagogical practices. Through a comprehensive review of existing literature, case studies, and recent innovations, this article discusses the benefits, challenges, and implications of digital tools in the language classroom. By addressing both the positive outcomes and barriers to integration, this paper provides valuable insights for educators, curriculum developers, and policymakers seeking to optimize the use of technology in language instruction.
Partitioned glass, a new practical tool to evaluate the origins of perceptive interactions in wine
Creators: name: Cameleyre, Margaux
name: Lytra, Georgia
name: Barbe, Jean-Christophe
Publisher: name: Zenodo
Year: 2021
Subjects: red wine
fruity aroma
perceptive interaction origin

description: Examples of perceptive interactions effects among volatiles on the fruity aromatic expression of wines have been previously highlighted. It was also shown that non-volatile molecules, such as tannins, impact fruity pool both at sensory and physicochemical level. Perceptive interactions have been described as occurring at four different levels: the first as a pre-sensory one, whereas the three others referred to interactions in the peripheral and central nervous system, at the receptor surface or in the olfactory bulb. An original protocol has been conceived to evaluate the odour modulation in binary mixtures: each compound was placed in a separate bottle, the two bottles being individually and simultaneously placed in a larger container, whose odour was evaluated. Thus, the resulting odour came from a mixture of these compounds in gaseous phase and not from the mixture in liquid phase, thus avoiding physico-chemical effects linked to physical mixture. Inspired by this work, an innovative methodological tool was developed to study if perceptive interactions were only due to headspace phase modifications after components mixture. An ISO wine glass with two identical compartments at the filling part was conceived. Such a glass, which is used like a conventional ISO wine glass by the taster, allowed to compare the perceived odour resulting from the mixture or not of the components in each compartment. Triangular tests were conducted to validate if the orientation of the wall separating the two compartments in the horizontal plane was perceived by the panel (4 positions evaluated: N-S, NE-SW, E-W and SE-NW). For each glass, fruity pool and tannins were added separately in each compartment. No significant difference was observed, indicating that the orientation of the glass had no effect on the global perception of the mixture. Various concentrations of fruity pool were also tested, between 25 and 200% of average concentrations found in wine. Finally, triangular tests were again conducted: the odour of a mixture of tannins and the fruity pool in both compartments was compared to the odour of tannins and the fruity pool separated in each compartment. The panel was able to significantly differentiate them. This data proved the existence of pre-sensory interaction between tannins and the fruity pool, thus permitting to understand results observed in a previous study with conventional ISO glass. This new sensory tool was also used to characterise further perceptive interactions we have previously identified, thus revealing additional highlights to physico-chemical changes observed with analytical tools and permitting to elucidate interaction origins.
Additional file 1: of A pH probe inhibits senescence in mesenchymal stem cells
Creators: name: Wang, Lihong
name: Han, Xianjing
name: Qu, Guojing
name: Su, Le
name: Zhao, Baoxiang
name: Miao, Junying
Publisher: name: figshare
Year: 2018
Subjects: Biochemistry
Molecular Biology
Pharmacology
Mathematical Sciences not elsewhere classified
Developmental Biology
Cancer

description: Supplementary figures are included in it. (DOC 1364 kb)
Critical behavior in an evolutionary Ultimatum Game
Creators: name: Eguíluz, Víctor M.
name: Tessone, Claudio J.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Adaptation and Self-Organizing Systems (nlin.AO)
subject: FOS: Physical sciences

description: Experimental studies have shown the ubiquity of altruistic behavior in human societies. The social structure is a fundamental ingredient to understand the degree of altruism displayed by the members of a society, in contrast to individual-based features, like for example age or gender, which have been shown not to be relevant to determine the level of altruistic behavior. We explore an evolutionary model aiming to delve how altruistic behavior is affected by social structure. We investigate the dynamics of interacting individuals playing the Ultimatum Game with their neighbors given by a social network of interaction. We show that a population self-organizes in a critical state where the degree of altruism depends on the topology characterizing the social structure. In general, individuals offering large shares but in turn accepting large shares, are removed from the population. In heterogeneous social networks, individuals offering intermediate shares are strongly selected in contrast to random homogeneous networks where a broad range of offers, below a critical one, is similarly present in the population.
description: 13 pages, 7 figures
Bouncing cosmology in the limiting curvature theory of gravity
Creators: name: Frolov, Valeri P.
name: Zelnikov, Andrei
Publisher: name: arXiv
Year: 2021
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: In this paper we discuss models satisfying the limiting curvature condition. For this purpose we modify the Einstein-Hilbert action by adding a term which restricts the growth of curvature. We analyze cosmological solutions in such models. Namely, we consider a closed contracting homogeneous isotropic universe filled with thermal radiation. We demonstrate that for properly chosen curvature constraints such a universe has a bounce. As a result its evolution is nonsingular and contains a "de Sitter-type" supercritical stage connecting contracting and expanding phases. Possible generalizations of these results are briefly discussed.
description: 21 pages, 9 figures, 5 references added
Thermodynamics of the Maxwell-Gauss-Bonnet anti-de Sitter Black Hole with Higher Derivative Gauge Corrections
Creators: name: Anninos, Dionysios
name: Pastras, Georgios
Publisher: name: arXiv
Year: 2008
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: The local and global thermal phase structure for asymptotically anti-de Sitter black holes charged under an abelian gauge group, with both Gauss-Bonnet and quartic field strength corrections, is mapped out for all parameter space. We work in the grand canonical ensemble where the external electric potential is held fixed. The analysis is performed in an arbitrary number of dimensions, for all three possible horizon topologies - spherical, flat or hyperbolic. For spherical horizons, new metastable configurations are exhibited both for the pure Gauss-Bonnet theory as well as the pure higher derivative gauge theory and combinations thereof. In the pure Gauss-Bonnet theory with negative coefficient and five or more spatial dimensions, two locally thermally stable black hole solutions are found for a given temperature. Either one or both of them may be thermally favored over the anti-de Sitter vacuum - corresponding to a single or a double decay channel for the metastable black hole. Similar metastable configurations are uncovered for the theory with pure quartic field strength corrections, as well combinations of the two types of corrections, in three or more spatial dimensions. Finally, a secondary Hawking-Page transition between the smaller thermally favored black hole and thermal anti-de Sitter space is observed when both corrections are turned on and their couplings are both positive.
description: 74 pages, 27 figures. v2: references added
Assessing deep learning methods for the identification of kidney stones in endoscopic images
Creators: name: Lopez, Francisco
name: Varela, Andres
name: Hinojosa, Oscar
name: Mendez, Mauricio
name: Trinh, Dinh-Hoan
name: ElBeze, Jonathan
name: Hubert, Jacques
name: Estrade, Vincent
name: Gonzalez, Miguel
name: Ochoa, Gilberto
name: Daul, Christian
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: Knowing the type (i.e., the biochemical composition) of kidney stones is crucial to prevent relapses with an appropriate treatment. During ureteroscopies, kidney stones are fragmented, extracted from the urinary tract, and their composition is determined using a morpho-constitutional analysis. This procedure is time consuming (the morpho-constitutional analysis results are only available after some days) and tedious (the fragment extraction lasts up to an hour). Identifying the kidney stone type only with the in-vivo endoscopic images would allow for the dusting of the fragments, while the morpho-constitutional analysis could be avoided. Only few contributions dealing with the in vivo identification of kidney stones were published. This paper discusses and compares five classification methods including deep convolutional neural networks (DCNN)-based approaches and traditional (non DCNN-based) ones. Even if the best method is a DCCN approach with a precision and recall of 98% and 97% over four classes, this contribution shows that a XGBoost classifier exploiting well-chosen feature vectors can closely approach the performances of DCNN classifiers for a medical application with a limited number of annotated data.
description: This paper is currently under review for the IEEE Engineering in Medicine and Biology Conference (EMBC 2021)
Influence of torrefaction temperature and time on the yields and properties of torrefied biomass
Creators: name: Nigran Homdoung
name: Kitikorn Sasujit
name: Jenjira Uttharuan
name: Thanasit Wongsiriamnuay
name: Nakorn Tippayawong
Publisher: name: Faculty of Engineering, Khon Kaen University
Year: 2019
Subjects: Agricultural residues
Bioenergy
Pyrolysis
Thermal pretreatment

description: Engineering and Applied Science Research, 46, 2, 170-175
Ultra-compact dwarfs beyond the centre of the Fornax galaxy cluster: Hints of UCD formation in low-density environments
Creators: name: Saifollahi, Teymoor
name: Janz, Joachim
name: Peletier, Reynier F.
name: Cantiello, Michele
name: Hilker, Michael
name: Mieske, Steffen
name: Valentijn, Edwin A.
name: Venhola, Aku
name: Kleijn, Gijs Verdoes
Publisher: name: arXiv
Year: 2021
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: FOS: Physical sciences

description: Ultra-compact dwarf galaxies (UCDs) were serendipitously discovered by spectroscopic surveys in the Fornax cluster twenty years ago. Nowadays, it is commonly accepted that many bright UCDs are the nuclei of galaxies that have been stripped. However, this conclusion might be driven by biased samples of UCDs in high-density environments, on which most searches are based. With the deep optical images of the Fornax Deep Survey, combined with public near-infrared data, we revisit the UCD population of the Fornax cluster and search for UCD candidates, for the first time, systematically out to the virial radius of the galaxy cluster. Our search is complete down to magnitude m$_g$ = 21 mag or M$_g$ $\sim$ -10.5 mag at the distance of the Fornax cluster. The UCD candidates are identified and separated from foreground stars and background galaxies by their optical and near-infrared colours. This primarily utilizes the $u-i$/$i-Ks$ diagram and a machine learning technique is employed to incorporate other colour combinations to reduce the number of contaminants. The newly identified candidates (44) in addition to the spectroscopically confirmed UCDs (61), increases the number of known Fornax UCD considerably (105). Almost all of the new UCD candidates are located outside the Fornax cluster core (360 kpc), where all of the known UCDs were found. The distribution of UCDs within the Fornax cluster shows that a population of UCDs may form in low-density environments. This most likely challenges the current models of UCD formation.
description: Accepted for publication in MNRAS
EOSC-Pillar Ambassadors Programme Poster - September 2021
Creators: name: Czuray, Marie
name: Drago, Federico
name: Greco, Andrea
Publisher: name: Zenodo
Year: 2021
Subjects: EOSC
Open Science
EOSC Portal
FAIR principles
FAIR data

description: Connecting research across Europe and beyond Are you working at a research performing organisation and interested in Open Science? Become an “Ambassador” for the European Open Science Cloud (EOSC) - and show researchers, students and decision-makers at your institution how to benefit from EOSC and how to get involved! What are the goals of EOSC? To make it easier to find, access, and reuse research data, tools and services Enhance availability of FAIR research data and infrastructures Foster multi-disciplinary collaboration Create synergies of tools, services and expertise EOSC-Pillar Ambassadors Programme: https://bit.ly/3okji5N
The quark-gluon vertex in Landau gauge QCD: Its role in dynamical chiral symmetry breaking and quark confinement
Creators: name: Alkofer, Reinhard
name: Fischer, Christian S.
name: Llanes-Estrada, Felipe J.
name: Schwenzer, Kai
Publisher: name: arXiv
Year: 2008
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Lattice (hep-lat)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: The infrared behavior of the quark-gluon vertex of quenched Landau gauge QCD is studied by analyzing its Dyson-Schwinger equation. Building on previously obtained results for Green functions in the Yang-Mills sector we analytically derive the existence of power-law infrared singularities for this vertex. We establish that dynamical chiral symmetry breaking leads to the self-consistent generation of components of the quark-gluon vertex forbidden when chiral symmetry is forced to stay in the Wigner-Weyl mode. In the latter case the running strong coupling assumes an infrared fixed point. If chiral symmetry is broken, either dynamically or explicitely, the running coupling is infrared divergent. Based on a truncation for the quark-gluon vertex Dyson-Schwinger equation which respects the analytically determined infrared behavior numerical results for the coupled system of the quark propagator and vertex Dyson-Schwinger equation are presented. The resulting quark mass function as well as the vertex function show only a very weak dependence on the current quark mass in the deep infrared. From this we infer by an analysis of the quark-quark scattering kernel a linearly rising quark potential with an almost mass independent string tension in the case of broken chiral symmetry. Enforcing chiral symmetry does lead to a Coulomb type potential. Therefore we conclude that chiral symmetry breaking and confinement are closely related. Furthermore we discuss aspects of confinement as the absence of long-range van-der-Waals forces and Casimir scaling. An examination of experimental data for quarkonia provides further evidence for the viability of the presented mechanism for quark confinement in the Landau gauge.
description: 64 pages, 31 figures
POLITICAL IMAGE AND TECHNOLOGIES OF ITS FORMATION
Creators: name: Isanova Gulbahor Takhirovna "Political science" associate professor of the department, (PhD)
name: Daughter of Mirzaalieva Aziza Musurmon Political science 1st year student major
Publisher: name: Zenodo
Year: 2023

description: In the 21st century, humanity has entered a qualitatively new stage . Today, when the world is undergoing unprecedented changes, new ways of mastering the social space, including its technology, are becoming a broad picture. From this point of view, both social relations and political processes are becoming objects of technology. The main goal of using political technologies is to achieve effective performance of political subjects' tasks and obligations. It is well known that the growth of mass literacy, the development of the Internet, the meeting of the most modern requirements of smartphones, etc. as a result, citizens are demanding that the authorities fully fulfill their functions and not destroy them due to irresponsibility. In most cases, public scrutiny and pressure force political groups and interest groups to change their positions. If the use of socio-political advertising as a technology in influencing political processes allows to actively influence social life, the use of the technology of creating a politician's image serves to realize the talent and potential of political subjects.
Additional file 6 of GmSPX8, a nodule-localized regulator confers nodule development and nitrogen fixation under phosphorus starvation in soybean
Creators: name: Xing, Xinzhu
name: Du, Hui
name: Yang, Zhanwu
name: Li, Xihuan
name: Kong, Youbin
name: Li, Wenlong
name: Zhang, Caiying
Publisher: name: figshare
Year: 2022
Subjects: subject: Plant Biology
subject: FOS: Biological sciences

description: Additional file 6: Table S3. Primers used in this study.
1+1+2 Electromagnetic perturbations on non-vacuum LRS class II space-times: Decoupling scalar and 2-vector harmonic amplitudes
Creators: name: Burston, R B
Publisher: name: arXiv
Year: 2007
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We use the covariant and gauge-invariant 1+1+2 formalism of Clarkson and Barrett \cite{Clarkson2003} to analyze electromagnetic (EM) perturbations on non-vacuum {\it locally rotationally symmetric} (LRS) class II space-times. Ultimately, we show how to derive six real decoupled equations governing the total of six EM scalar and 2-vector harmonic amplitudes. Four of these are new, and result from expanding the complex EM 2-vector which we defined in \cite{Burston2007} in terms of EM 2-vector harmonic amplitudes. We are then able to show that there are four precise combinations of the amplitudes that decouple, two of these are polar perturbations whereas the remaining two are axial. The remaining two decoupled equations are the generalized Regge-Wheeler equations which were developed previously in \cite{Betschart2004}, and these govern the two EM scalar harmonic amplitudes. However, our analysis generalizes this by including a full description and classification of energy-momentum sources, such as charges and currents.
description: 9 pages
Isotopic shift and search of magic number in the superheavy region
Creators: name: Pattnaik, Jeet Amrit
name: Panda, R. N.
name: Bhuyan, M.
name: Patra, S. K.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: The ground state bulk properties such as binding energy, root-mean-square radius, pairing energy, nuclear density distributions, and single-particle energies are calculated for the isotopic chain of Ca, Sn, Pb, and Z = 120 nuclei. The relativistic mean-field with recently developed G3, IOPB-1, and Relativistic-Hartree-Bogoliubov with density-dependent DD-ME1 and DD-ME2 parameter sets are used in the present analysis. The respective shifts over the isotopic chain for the structural observables and surface property like symmetry energy are also estimated using a three-point method, which is crucial for the systematic analysis of the shell/sub-shell closure. The calculated results are compared with the available experimental data for various bulk properties, wherever available. A multiple isotopic shifts leads to the shell/sub-shell closure at N = (20 \& 28), (50 \& 82), and 126 for Ca, Sn, and Pb isotopes, respectively, are observed. The analysis also supports the neutron magic at N = 40 and 184 for highly neutron-rich $^{60}$Ca, and $^{304}$120, predicted to be the next double magic beyond $^{208}$Pb, respectively. Observing the occupancy number, we notice the higher neutron orbitals are mostly occupied before the lower one, which causes the kinks at neutron magic with an amalgam in the isotopic chain trend above nuclei. We also notice the correlation between the occupation probabilities and the magicity of a nucleus and vice-versa.
description: 10 pages,14 figures,1 table
Lattice susceptibility for 2D Hubbard Model within dual fermion method
Creators: name: Li, Gang
name: Lee, Hunpyo
name: Monien, Hartmut
Publisher: name: arXiv
Year: 2008
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: In this paper, we present details of the dual fermion (DF) method to study the non-local correction to single site DMFT. The DMFT two-particle Green's function is calculated using continuous time quantum monte carlo (CT-QMC) method. The momentum dependence of the vertex function is analyzed and its renormalization based on the Bethe-Salpeter equation is performed in particle-hole channel. We found a magnetic instability in both the dual and the lattice fermions. The lattice fermion susceptibility is calculated at finite temperature in this method and also in another recently proposed method, namely dynamical vertex approximation (D$Γ$A). The comparison between these two methods are presented in both weak and strong coupling region. Compared to the susceptibility from quantum monte carlo (QMC) simulation, both of them gave satisfied results.
description: 10 pages, 11 figures
Relative purity, speed of fluctuations, and bounds on equilibration times
Creators: name: Pires, Diego Paiva
name: de Oliveira, Thiago R.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We discuss the local equilibration of closed systems using the relative purity, a paradigmatic information-theoretic distinguishability measure that finds applications ranging from quantum metrology to quantum speed limits. First we obtain an upper bound on the average size of the fluctuations on the relative purity: it depends on the effective dimension resembling the bound obtained with the trace distance. Second, we investigate the dynamics of relative purity and its rate of change as a probe of the speed of fluctuations around the equilibrium. In turn, such speed captures the notion of how fast some nonequilibrium state approaches the steady state under the local nonunitary dynamics, somehow giving the information of the quantum speed limit towards the equilibration. We show that the size of fluctuations depends on the quantum coherences of the initial state with respect to the eigenbasis of the Hamiltonian, also addressing the role played by the correlations between system and reservoir into the averaged speed. Finally, we have derived a family of lower bounds on the time of evolution between these states, thus obtaining an estimate for the equilibration time at the local level. These results could be of interest to the subjects of equilibration, quantum speed limits, and also quantum metrology.
description: 14 pages, 5 figures. Close to published version
ASTRONOMIYA O'QITISHDA TAQDIMOTLARNI YARATISH VA ULARNI QO'LLASH TALABLARI VA  IMKONIYATLARI
Creators: name: Sayfullayeva, Gulhayo
name: Norqulova, Madina
Publisher: name: Zenodo
Year: 2023

description: Hozirgi zamon amaliyotida turli sеminarlar, konfеrеnsiyalar, yangi mahsulotlarni e'lon qilish yoki yangi xizmat turlari bilan tanishtirish uchun taqdimot (rеklama) ishlaridan kеng foydalanilmoqda. Bu hol ayniqsa, o’quv jarayonlarida ommalashgan.
On the Superconductivity of LaFe1-yCoyAsO1-xFx
Creators: name: Kawabata, Ayaka
name: Lee, Sang Chul
name: Moyoshi, Taketo
name: Kobayashi, Yoshiaki
name: Sato, Masatoshi
Publisher: name: arXiv
Year: 2008
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: We have prepared the superconducting system LaFe1-yCoyAsO1-xFx (x=0.11) and carried out measurements of their electrical resistivities r and superconducting diamagnetisms. 75As- and 135La-NMR studies have also been carried out. The Knight shift observed for 75As has been found to be suppressed by the superconductivity, while for 135La, the shift is almost insensitive to the superconductivity. This result presents rather strong experimental evidence for the singlet pairing. The Co-doping effect on the superconducting transition temperature Tc is not so significant as expected for superconductors with nodes, suggesting that the potential scattering does not seem to primarily suppress the superconductivity. Even for superconductors without nodes, it may not be so trivial to expect this small effect, if there are two different (disconnected) Fermi surfaces whose order parameters have opposite signs. As a possible explanation of this small Tc suppression seems to be related with the loss of the itinerant nature of the electrons.
description: 4 pages, 5 figures, typos added, submitted to JPSJ
A Radio Nebula Surrounding the Ultra-luminous X-ray Source in NGC 5408
Creators: name: Lang, Cornelia C.
name: Kaaret, Philip
name: Corbel, Stephane
name: Mercer, Allison
Publisher: name: arXiv
Year: 2007
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: New radio observations of the counterpart of the ultraluminous X-ray source in NGC 5408 show for the first time that the radio emission is resolved with an angular size of 1.5 to 2.0 arcseconds. This corresponds to a physical size of 35-46 pc, and rules out interpretation of the radio emission as beamed emission from a relativistic jet. In addition, the radio spectral index of the counterpart is well determined from three frequencies and found to be alpha=-0.8 pm 0.2. The radio emission is likely to be optically-thin synchrotron emission from a nebula surrounding the X-ray source. The radio luminosity of the counterpart is 3.8 x 10^34 erg/s and the minimum energy required to power the nebula is ~1 x 10^49 erg. These values are two orders of magnitude larger than in any Galactic nebula powered by an accreting compact object.
description: 6 pages, 6 figures, to appear in ApJ, 1 Sept 2007
Performability of Network Service Chains: Stochastic Modeling and Assessment of Softwarized IP Multimedia Subsystem
Creators: name: Di Mauro, Mario
name: Galatro, Giovanni
name: Postiglione, Fabio
name: Tambasco, Marco
Publisher: name: arXiv
Year: 2021
Subjects: subject: Networking and Internet Architecture (cs.NI)
subject: Performance (cs.PF)
subject: FOS: Computer and information sciences

description: Service provisioning mechanisms implemented across 5G infrastructures take broadly into use the network service chain concept. Typically, it is coupled with Network Function Virtualization (NFV) paradigm, and consists in defining a pre-determined path traversed by a set of softwarized network nodes to provide specific services. A well known chain-like framework is the IP Multimedia Subsystem (IMS), a key infrastructure of 5G networks, that we characterize both by a performance and an availability perspective. Precisely, supported by a designed from scratch testbed realized through Clearwater platform, we perform a stochastic assessment of a softwarized IMS (softIMS) architecture where two main stages stand out: i) a performance analysis, where, exploiting the queueing network decomposition method, we formalize an optimization problem of resource allocation by modeling each softIMS node as an M/G/c system; ii) an availability assessment, where, adopting the Stochastic Reward Net methodology, we are able to characterize the behavior of softIMS in terms of failure/repair events, and to derive a set of optimal configurations satisfying a given availability requirement (e.g. five nines) while minimizing deployment costs. Two routines dubbed OptCNT and OptSearchChain have been devised to govern the performance and availability analyses, respectively.
TRIPLE Deliverable: D7.1 Report on Stakeholder and Opportunity Analysis
Creators: name: Breitfuss, Gert
name: Barreiros, Carla
name: Dumouchel, Suzanne
name: Blotière, Emilie
name: Bouillard, Maxime
name: Di Donato, Francesca
name: Forbes, Paula
Publisher: name: Zenodo
Year: 2020
Subjects: stakeholder analysis
opportunity analysis
social sciences and humanities
SSH
research infrastructure
OPERAS
TRIPLE

description: In the present report on Stakeholder- and Opportunity Analysis (D7.1), we provide the foundation for TRIPLE’s exploitation strategy and TRIPLE’s business model. By applying a broad mix of methods and tools we gained insights into relevant stakeholders, existing competition, the business environment, a first strategic orientation and derived recommendation for the future project work.
 From stakeholder analysis, we gained information about the stakeholder roles and needs as well as indications on their power and interest. Out of that data, we derived management strategies for specific stakeholder groups. The results are presented in an informative overview table and in a Power- Interest matrix. From our conducted environment analysis (PESTLE) we got rich information on each of the six categories. All detected factors were briefly described, classified as positive or negative and summarised in a table. The results were further processed in the finally conducted SWOT analysis.
 In order to get a broad overview of the competitive environment twenty-six scholarly communication platforms were evaluated through web-based research. The analysis covers an overview of offered features and functions, organisational insights, strengths & weaknesses as well as impressions on usability and user experience. Looking at the products and services provided by the competitors, we recognize that the planned feature-set for TRIPLE platform represents unique features that will distinguish TRIPLE from the competition. Attention needs to be paid on a number of agile platforms which constantly release innovative (e.g. AI-powered) features. To complement the vantage points gained from the web-based competitor analysis an interview study with general Open Science Experts and executives from existing Open Science platforms was conducted. The interview results show that despite the many platforms and services available, there are still unoccupied market niches and underrepresented user groups.
 Finally, the conducted SWOT analysis shows first insights on how we can use our strength to balance our threats and weaknesses, to minimize risks, and to take the greatest possible advantage of chances for success.
description: The Report has been officially approved by the EU Project Officer. --- The TRIPLE project (https://www.gotriple.eu/), which is financed under the Horizon 2020 framework (https://cordis.europa.eu/project/id/863420), under Grant Agreement No. 863420, with approx. 5.6 million Euros for a duration of 42 months (2019-2023). --- At the heart of the project is the development of the TRIPLE platform, an innovative multilingual and multicultural discovery solution.
Scatterometry Measurements with Scattered Light Imaging Enable New Insights into the Nerve Fiber Architecture of the Brain
Creators: name: Menzel, Miriam
name: Ritzkowski, Marouan
name: Reuter, Jan André
name: Gräßel, David
name: Amunts, Katrin
name: Axer, Markus
Publisher: name: arXiv
Year: 2021
Subjects: subject: Biological Physics (physics.bio-ph)
subject: Medical Physics (physics.med-ph)
subject: Optics (physics.optics)
subject: Neurons and Cognition (q-bio.NC)
subject: FOS: Physical sciences
subject: FOS: Biological sciences

description: The correct reconstruction of individual (crossing) nerve fibers is a prerequisite when constructing a detailed network model of the brain. The recently developed technique Scattered Light Imaging (SLI) allows the reconstruction of crossing nerve fiber pathways in whole brain tissue samples with micrometer resolution: The individual fiber orientations are determined by illuminating unstained histological brain sections from different directions, measuring the transmitted scattered light under normal incidence, and studying the light intensity profiles of each pixel in the resulting image series. So far, SLI measurements were performed with a fixed polar angle of illumination and a small number of illumination directions, providing only an estimate of the nerve fiber directions and limited information about the underlying tissue structure. Here, we use an LED display with individually controllable light-emitting diodes to measure the full distribution of scattered light behind the sample (scattering pattern) for each image pixel at once, enabling scatterometry measurements of whole brain tissue samples. We compare our results to coherent Fourier scatterometry (raster-scanning the sample with a non-focused laser beam) and previous SLI measurements with fixed polar angle of illumination, using sections from a vervet monkey brain and human optic tracts. Finally, we present SLI scatterometry measurements of a human brain section with 3 $μ$m in-plane resolution, demonstrating that the technique is a powerful approach to gain new insights into the nerve fiber architecture of the human brain.
description: 14 pages, 8 figures
1+1+2 Electromagnetic perturbations on general LRS space-times: Regge-Wheeler and Bardeen-Press equations
Creators: name: Burston, R. B.
name: Lun, A. W. C.
Publisher: name: arXiv
Year: 2007
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We use the, covariant and gauge-invariant, 1+1+2 formalism developed by Clarkson and Barrett, and develop new techniques, to decouple electromagnetic (EM) perturbations on arbitrary locally rotationally symmetric (LRS) space-times. Ultimately, we derive 3 decoupled complex equations governing 3 complex scalars. One of these is a new Regge-Wheeler (RW) equation generalized for LRS space-times, whereas the remaining two are new generalizations of the Bardeen-Press (BP) equations. This is achieved by first using linear algebra techniques to rewrite the first-order Maxwell equations in a new complex 1+1+2 form which is conducive to decoupling. This new complex system immediately yields the generalized RW equation, and furthermore, we also derive a decoupled equation governing a newly defined complex EM 2-vector. Subsequently, a further decomposition of the 1+1+2 formalism into a 1+1+1+1 formalism is developed, allowing us to decompose the complex EM 2-vector, and its governing equations, into spin-weighted scalars, giving rise to the generalized BP equations.
Mass and Magnetic Moments of the Heavy Flavored Baryons with $J=3/2$ in Light Cone QCD Sum Rules
Creators: name: Aliev, T. M.
name: Azizi, K.
name: Ozpineci, A.
Publisher: name: arXiv
Year: 2008
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: Inspired by the results of recent experimental discoveries for charm and bottom baryons, the masses and magnetic moments of the heavy baryons with $J^P=3/2^+$ containing a single heavy quark are studied within light cone QCD sum rules method. Our results on the masses of heavy baryons are in good agreement with predictions of other approaches, as well as with the existing experimental values. Our predictions on the masses of the states, which are not yet discovered in the experiments, can be tested in the future experiments. A comparison of our results on the magnetic moments of these baryons and the hyper central model predictions is presented.
description: 33 Pages, 16 Figures and 3 Tables
Deeply virtual Compton scattering on the neutron with positron beam
Creators: name: Niccolai, Silvia
name: Chatagnon, Pierre
name: Hoballah, Mostafa
name: Marchand, Dominique
name: Camacho, Carlos Munoz
name: Voutier, Eric
Publisher: name: arXiv
Year: 2021
Subjects: subject: Nuclear Experiment (nucl-ex)
subject: FOS: Physical sciences

description: Measuring DVCS on a neutron target is a necessary step to deepen our understanding of the structure of the nucleon in terms of Generalized Parton Distributions (GPDs). The combination of neutron and proton targets allows to perform a flavor decomposition of the GPDs. Moreover, neutron-DVCS plays a complementary role to DVCS on a transversely polarized proton target in the determination of the GPD $E$, the least known and constrained GPD that enters Ji's angular momentum sum rule. A measurement of the beam-charge asymmetry (BCA) in the $e^{\pm} d\to e^{\pm}nγ(p)$ reaction can significantly impact the experimental determination of the real parts of the $E$ and, to a lesser extent, $\widetilde{H}$ GPDs.
description: arXiv admin note: substantial text overlap with arXiv:2007.15081, arXiv:1906.09419
Metodología de revisión sistemática de literatura
Creators: name: García-Peñalvo, F. J.
Publisher: name: Zenodo
Year: 2019
Subjects: Mapeo de literatura; Revisión sistemática de literatura; SLM; SLR; Parsifal

description: El seminario “Metodología de revisión sistemática de literatura” fue impartida el 19 de junio de 2019 dentro del Programa “Visita de Investigador de Impacto Internacional” de la Universidad Nacional de San Agustín (Perú).

El objetivo del seminario es introducir a los asistentes a la realización de un mapping y de una revisión sistemática de literatura, apoyándose en una herramienta como Parfisal.
Estimating Third-Order Moments for an Absorber Catalog
Creators: name: Loh, J. M.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: Thanks to the recent availability of large surveys, there has been renewed interest in third-order correlation statistics. Measures of third-order clustering are sensitive to the structure of filaments and voids in the universe and are useful for studying large-scale structure. Thus, statistics of these third-order measures can be used to test and constrain parameters in cosmological models. Third-order measures such as the three-point correlation function are now commonly estimated for galaxy surveys. Studies of third-order clustering of absorption systems will complement these analyses. We define a statistic, which we denote K, that measures third-order clustering of a data set of point observations and focus on estimating this statistic for an absorber catalog. The statistic K can be considered a third-order version of the second-order Ripley K-function and allows one to study the abundance of various configurations of point triplets. In particular, configurations consisting of point triplets that lie close to a straight line can be examined. Studying third-order clustering of absorbers requires consideration of the absorbers as a three-dimensional process, observed on QSO lines of sight that extend radially in three-dimensional space from Earth. Since most of this three-dimensional space is not probed by the lines of sight, edge corrections become important. We use an analytical form of edge correction weights and construct an estimator of the statistic K for use with an absorber catalog. We show that with these weights, ratio-unbiased estimates of K can be obtained. Results from a simulation study also verify unbiasedness and provide information on the decrease of standard errors with increasing number of lines of sight.
description: 19 pages, 4 figures
Dynamics of multicritical circle maps
Creators: name: de Faria, Edson
name: Guarino, Pablo
Publisher: name: arXiv
Year: 2021
Subjects: subject: Dynamical Systems (math.DS)
subject: FOS: Mathematics

description: This paper presents a survey of recent and not so recent results concerning the study of smooth homeomorphisms of the circle with a finite number of non-flat critical points, an important topic in the area of One-dimensional Dynamics. We focus on the analysis of the fine geometric structure of orbits of such dynamical systems, as well as on certain ergodic-theoretic and complex-analytic aspects of the subject. Finally, we review some conjectures and open questions in this field.
description: 50 pages, 6 figures
Complex chaos in conditional qubit dynamics and purification protocols
Creators: name: Kiss, T.
name: Jex, I.
name: Alber, G.
name: Vymetal, S.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Selection of an ensemble of equally prepared quantum systems, based on measurements on it, is a basic step in quantum state purification. For an ensemble of single qubits, iterative application of selective dynamics has been shown to lead to complex chaos, which is a novel form of quantum chaos with true sensitivity to the initial conditions. The Julia set of initial valuse with no convergence shows a complicated structre on the complex plane. The shape of the Julia set varies with the parameter of the dynamics. We present here results for the two qubit case demonstrating how a purification process can be destroyed with chaotic oscillations.
A Novel Wireless Communication Paradigm for Intelligent Reflecting Surface Based Symbiotic Radio Systems
Creators: name: Hua, Meng
name: Wu, Qingqing
name: Yang, Luxi
name: Schober, Robert
name: Poor, H. Vincent
Publisher: name: arXiv
Year: 2021
Subjects: subject: Information Theory (cs.IT)
subject: Signal Processing (eess.SP)
subject: FOS: Computer and information sciences
subject: FOS: Electrical engineering, electronic engineering, information engineering

description: This paper investigates a novel intelligent reflecting surface (IRS)-based symbiotic radio (SR) system architecture consisting of a transmitter, an IRS, and an information receiver (IR). The primary transmitter communicates with the IR and at the same time assists the IRS in forwarding information to the IR. Based on the IRS's symbol period, we distinguish two scenarios, namely, commensal SR (CSR) and parasitic SR (PSR), where two different techniques for decoding the IRS signals at the IR are employed. We formulate bit error rate (BER) minimization problems for both scenarios by jointly optimizing the active beamformer at the base station and the phase shifts at the IRS, subject to a minimum primary rate requirement. Specifically, for the CSR scenario, a penalty-based algorithm is proposed to obtain a high-quality solution, where semi-closed-form solutions for the active beamformer and the IRS phase shifts are derived based on Lagrange duality and Majorization-Minimization methods, respectively. For the PSR scenario, we apply a bisection search-based method, successive convex approximation, and difference of convex programming to develop a computationally efficient algorithm, which converges to a locally optimal solution. Simulation results demonstrate the effectiveness of the proposed algorithms and show that the proposed SR techniques are able to achieve a lower BER than benchmark schemes.
description: This manuscript has been submitted to IEEE journal for possible publication
TRIPLE Deliverable: D1.3 Data Management Plan DRAFT
Creators: name: Khan, Anas Fahad
name: Capelli, Laurent
name: Monachini, Monica
name: Di Donato, Francesca
name: Gingold, Arnaud
name: Dumouchel, Suzanne
name: Blotière, Emilie
name: Blaszczynska, Marta
name: De Paoli, Stefano
name: De Santis, Luca
name: Kittel, Christopher
name: Kopeinik, Simone
name: Kraker, Peter
name: Bouillard, Maxime
Publisher: name: Zenodo
Year: 2020
Subjects: data management
SSH
social sciences and humanities
research infrastructure
OPERAS
TRIPLE

description: Social Sciences and Humanities (SSH) research is divided across a wide array of disciplines and languages. While this specialization makes it possible to investigate the extensive variety of SSH topics, it also leads to a fragmentation that prevents SSH research from reaching its full potential. Use and reuse of SSH research is low, interdisciplinary collaboration possibilities are often missed, and as a result, the societal impact is limited. TRIPLE, the European discovery solution, addresses these issues: it enables researchers to discover and reuse SSH data, but also other researchers and projects across disciplinary and language boundaries. It provides all necessary means to build interdisciplinary projects and to develop large-scale scientific missions. It will thus increase the economic and societal impacts of SSH resources. Thanks to a consortium of 19 partners, TRIPLE develops a full multilingual and multicultural solution for the appropriation of SSH resources. The TRIPLE platform provides a 360° discovery experience thanks to linked exploration provided by the Isidore search engine developed by CNRS and a coherent solution providing innovative tools to support research (visualisation, annotation, trust building system, crowdfunding, social network and recommender system). TRIPLE imagines new ways to conduct, connect and discover research; it will promote cultural diversity inside Europe; it will support scientific, industrial and societal applications of SSH science; it will connect researchers and projects with other stakeholders: citizens, policy makers, companies, enabling them to take part in research projects or to answer to some of their issues. TRIPLE will be a dedicated service of OPERAS RI and become a strong service in the EOSC marketplace. To conclude, TRIPLE will help SSH research in Europe to gain visibility, to be more efficient and effective, to improve its reuse within SSH and beyond and to dramatically increase its societal impact.
description: The Deliverable has been officially approved by the EU Project Officer. --- The TRIPLE project (https://www.gotriple.eu/), which is financed under the Horizon 2020 framework (https://cordis.europa.eu/project/id/863420), under Grant Agreement No. 863420, with approx. 5.6 million Euros for a duration of 42 months (2019-2023). --- At the heart of the project is the development of the TRIPLE platform, an innovative multilingual and multicultural discovery solution.