cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Fe, Zn and Mg stable isotope recordsof early differentiation and core formation of the ureilite parent body
Creators: name: Chernonozhkin, Stepan
name: Goderis, Steven
name: Hublet, Genevieve
name: Weyer, Stefan
name: Horn, Ingo
name: Pittarello, Lidia
name: Claeys, Philippe
name: Debaille, Vinciane
name: Vanhaecke, Frank
Publisher: name: Zenodo
Year: 2023
Subjects: cosmochemistry; MC-ICP-MS; non-traditional stable isotopes; ureilite

description: Ureilites are achondrites formed as ultramafic mantle restites on a planetesimal that did not reach a magma ocean stage. As such they represent an appealing target to study early planetary differentiation, formation of early cores and mantle processes, which have a direct bearing onto formation of terrestrial planets. Here, we use Fe, Zn and Mg isotope ratio variations of bulk ureilites, their separated silicate and metal fractions, as well as handpicked single mineral fractions to explore the evolution of the ureilite parent body. None of the measured isotope ratio patterns correlate with proxies of nebular processes, such as oxygen isotopic composition or composition of the olivine cores. Within the attained uncertainty, the isotope ratios of Mg indicate no radiogenic ingrowth from 26Al decay. The mass-dependent Mg isotopic signatures are slightly heavier than chondritic, hinting towards evaporation-related fractionation. The slightly heavier than chondritic Fe and Zn isotopic signatures of bulk ureilites are fully consistent with earlier observations. However, where earlier studies suggested evaporative Zn isotope fractionation on a ureilite parent body, the isotopic signatures of ureilite metal separates presented here indicate that the Zn systematics in ureilites are largely controlled by differentiation between liquid and solid metallic phases and metal melt extraction. In addition, the Fe isotopic compositions of ureilite metal and silicate separates imply isotopic disequilibrium between these reservoirs. Finally, lateral profiles of Fe and Mg isotope ratios were measured in situ in several olivine grains selected by their heavily reduced appearance. Such zoned olivine grains in ureilites are traditionally interpreted to form in the process of reduction of the olivine rims by carbon. The complex lateral Fe and Mg isotope ratio profiles likely reflect a multi-stage evolution of fast cooling followed by overgrowth from fractionated magma and/or metal-olivine reaction at the rims. Combined, the Fe, Mg and Zn isotope ratio systematics of ureilites and their composing minerals highlight complex thermal histories with metal-silicate differentiation processes that may have been overprinted by evaporation.
Automated construction of maximally localized Wannier functions for bands with nontrivial topology
Creators: name: Mustafa, Jamal I.
name: Coh, Sinisa
name: Cohen, Marvin L.
name: Louie, Steven G.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: We show that an optimized projection functions method can automatically construct maximally localized Wannier functions even for bands with nontrivial topology. We demonstrate this method on a tight-binding model of a two-dimensional $\mathbb{Z}_2$ topological insulator, on a three-dimensional strong $\mathbb{Z}_2$ topological insulator, as well as on first-principles density functional theory calculated valence states of Bi$_2$Se$_3$. In all cases, the resulting Wannier functions contain large imaginary components and are more extended than those in the topologically trivial phase.
description: 10 pages, 5 figures
Chaos driven by interfering memory
Creators: name: Perrard, Stéphane
name: Labousse, Matthieu
name: Fort, Emmanuel
name: Couder, Yves
Publisher: name: arXiv
Year: 2016
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: Chaotic Dynamics (nlin.CD)
subject: Fluid Dynamics (physics.flu-dyn)
subject: FOS: Physical sciences

description: The transmission of information can couple two entities of very different nature, one of them serving as a memory for the other. Here we study the situation in which information is stored in a wave field and serves as a memory that pilots the dynamics of a particle. Such a system can be implemented by a bouncing drop generating surface waves sustained by a parametric forcing. The motion of the resulting "walker" when confined in a harmonic potential well is generally disordered. Here we show that these trajectories correspond to chaotic regimes characterized by intermittent transitions between a discrete set of states. At any given time, the system is in one of these states characterized by a double quantization of size and angular momentum. A low dimensional intermittency determines their respective probabilities. They thus form an eigenstate basis of decomposition for what would be observed as a superposition of states if all measurements were intrusive.
The orientation of the plan of Novaesium, a Roman fort on the Rhine
Creators: name: Sparavigna, Amelia Carolina
Publisher: name: Zenodo
Year: 2019

description:  Novaesium was a Roman fort on the Rhine, a fort which served for the campaigns of
Augustus and Drusus against Germans. The plan is the standard one of the Roman camps. Here we
discuss its orientation. It has its decumanus having, as far as we can see from archaeological
surveys, an azimuth of about 118 degrees. The fort has a perfect orientation "secundum naturam".
In the case that this castrum were oriented "secundum coelum", that is in the direction of the sunrise
on the day of its foundation, it could had been founded on November 13 or February 1 (Julian
dates). This second date is interesting, because it is coincident to the historical date of 30 January,
the birthday of Drusus’ mother and Augusts’ wife, Livia.
Hirzebruch functional equations and complex Krichever genera
Creators: name: Netay, I. V.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Algebraic Topology (math.AT)
subject: FOS: Mathematics

description: It is well known that the two-parametric Todd genus and elliptic functions of level $d$ define $n$-multiplicative Hirzebruch genera, if $d$ divides $n+1$. Both these cases are particular cases of Krichever genera defined by the Baker--Akhiezer functions. In this work the inverse problem is solved. Namely, it is proved that only these families of functions define $n$-multiplicative Hirzebruch genera among all the Krichever genera for all $n$.
description: 10 pages
Prompt neutrino fluxes in the atmosphere with PROSA parton distribution functions
Creators: name: PROSA Collaboration
name: Garzelli, M. V.
name: Moch, S.
name: Zenaiev, O.
name: Cooper-Sarkar, A.
name: Geiser, A.
name: Lipka, K.
name: Placakyte, R.
name: Sigl, G.
Publisher: name: arXiv
Year: 2016
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: Effects on atmospheric prompt neutrino fluxes of present uncertainties affecting the nucleon composition are studied by using the PROSA fit to parton distribution functions (PDFs). The PROSA fit extends the precision of the PDFs to low x, which is the kinematic region of relevance for high-energy neutrino production, by taking into account LHCb data on charm and bottom hadroproduction. In the range of neutrino energies explored by present Very Large Volume Neutrino Telescopes, it is found that PDF uncertainties are far smaller with respect to those due to renormalization and factorization scale variation and to assumptions on the cosmic ray composition, which at present dominate and limit our knowledge of prompt neutrino fluxes. A discussion is presented on how these uncertainties affect the expected number of atmospheric prompt neutrino events in the analysis of high-energy events characterized by interaction vertices fully contained within the instrumented volume of the detector, performed by the IceCube collaboration.
description: 36 pages, 17 figures, 1 table
Test the chiral magnetic effect with isobaric collisions
Creators: name: Deng, Wei-Tian
name: Huang, Xu-Guang
name: Ma, Guo-Liang
name: Wang, Gang
Publisher: name: arXiv
Year: 2016
Subjects: subject: Nuclear Theory (nucl-th)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: Nuclear Experiment (nucl-ex)
subject: FOS: Physical sciences

description: The quark-gluon matter produced in relativistic heavy-ion collisions may contain local domains in which P and CP symmetries are not preserved. When coupled with an external magnetic field, such P- and CP-odd domains will generate electric currents along the magnetic field --- a phenomenon called the chiral magnetic effect (CME). Recently, the STAR Collaboration at RHIC and the ALICE Collaboration at the LHC released data of charge-dependent azimuthal-angle correlators with features consistent with the CME expectation. However, the experimental observable is contaminated with significant background contributions from elliptic-flow-driven effects, which makes the interpretation of the data ambiguous. In this Letter, we show that the collisions of isobaric nuclei, $^{96}_{44}$Ru + $^{96}_{44}$Ru and $^{96}_{40}$Zr + $^{96}_{40}$Zr, provide an ideal tool to disentangle the CME signal from the background effects. Our simulation demonstrates that the two collision types at $\sqrt{s_{\rm NN}}=200$ GeV have more than $10\%$ difference in the CME signal and less than $2\%$ difference in the elliptic-flow-driven backgrounds for the centrality range of $20-60\%$.
description: V1: 4 pages, 4 figures
The Seebeck coefficient in correlated low dimensional organic metals
Creators: name: Shahbazi, M.
name: Bourbonnais, C.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: We study the influence of inelastic electron-electron scattering on the temperature variation of the Seebeck coefficient in the normal phase of quasi-one-dimensional organic superconductors. The theory is based on the numerical solution of the semi-classical Boltzmann equation for which the collision integral equation is solved with the aid of the electronic umklapp scattering vertex calculated by the renormalization group method. We show that the one-loop renormalization group flow of momentum and temperature dependent umklapp scattering, in the presence of nesting alterations of the Fermi surface, introduce electron-hole asymmetry in the energy dependence of the anisotropic scattering time. This is responsible for the enhancement of the Seebeck coefficient with respect to the band $T$-linear prediction and even its sign reversal around the quantum critical point of the phase diagram, namely where the interplay between antiferromagnetism and superconductivity along with the strength of spin fluctuations are the strongest. Comparison of the results with available data on low dimensional organic superconductors is presented and critically discussed.
description: 12 pages, 8 figures. Submitted to PRB
SPARSE: A Subgrid Particle Averaged Reynolds Stress Equivalent Model: Testing with A Priori Closure
Creators: name: Davis, Sean
name: Jacobs, Gustaaf
name: Sen, Oishik
name: Udaykumar, H. S.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Fluid Dynamics (physics.flu-dyn)
subject: FOS: Physical sciences

description: A Lagrangian particle cloud model is proposed that accounts for the effects of Reynolds-averaged particle and turbulent stresses and the averaged carrier-phase velocity of the sub-particle-cloud scale on the averaged motion and velocity of the cloud. The SPARSE (Subgrid Particle Average Reynolds Stress Equivalent) model is based on a combination of a truncated Taylor expansion of a drag correction function and Reynolds averaging. It reduces the required number of computational parcels to trace a cloud of particles in Eulerian-Lagrangian methods for the simulation of particle-laden flow. Closure is performed in an a priori manner using a reference simulation where all particles in the cloud are traced individually with a point particle model. Comparison of a first-order model and SPARSE with the reference simulation in one-dimension shows that both the stress and the averaging of the carrier-phase velocity on the cloud subscale affect the averaged motion of the particle. A three-dimensional isotropic turbulence computation shows that only one computational parcel is sufficient to accurately trace a cloud of tens of thousand of particles.
Hybrid optical-thermal antennas for enhanced light focusing and local temperature control
Creators: name: Boriskina, Svetlana V.
name: Weinstein, Lee A.
name: Tong, Jonathan K.
name: Hsu, Wei-Chun
name: Chen, Gang
Publisher: name: arXiv
Year: 2016
Subjects: subject: Optics (physics.optics)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Materials Science (cond-mat.mtrl-sci)
subject: Chemical Physics (physics.chem-ph)
subject: FOS: Physical sciences

description: Metal nanoantennas supporting localized surface plasmon resonances have become an indispensable tool in bio(chemical) sensing and nanoscale imaging applications. The high plasmon-enhanced electric field intensity in the visible or near-IR range that enables the above applications may also cause local heating of nanoantennas. We present a design of hybrid optical-thermal antennas that simultaneously enable intensity enhancement at the operating wavelength in the visible and nanoscale local temperature control. We demonstrate a possibility to reduce the hybrid antenna operating temperature via enhanced infrared thermal emission. We predict via rigorous numerical modeling that hybrid optical-thermal antennas that support high-quality-factor photonic-plasmonic modes enable up to two orders of magnitude enhancement of localized electric fields and of the optical power absorbed in the nanoscale metal volume. At the same time, the hybrid antenna temperature can be lowered by several hundred degrees with respect to its all-metal counterpart under continuous irradiance of 104-105 W/m2. The temperature reduction effect is attributed to the enhanced radiative cooling, which is mediated by the thermally-excited localized surface phonon polariton modes. We further show that temperature reduction under even higher irradiances can be achieved by a combination of enhanced radiative and convective cooling in hybrid antennas. Finally, we demonstrate how hybrid optical-thermal antennas can be used to achieve strong localized heating of nanoparticles while keeping the rest of the optical chip at low temperature.
description: 24 pages, 11 figures
Workshop: National ReMO policy briefs on the mental health of researchers across Europe
Creators: name: Sundukova, Mayya
name: Lackner, Simone
name: Metcalfe, Janet
name: Vvedenskaya, Olya
Publisher: name: Zenodo
Year: 2023
Subjects: workshop
training
community building
stakeholder engagement
policy briefs
mental health
stakeholder mapping
research culture
academic research

description: Slides from the workshop run during the 2nd Conference of the Researcher Mental Health Observatory: Evidence-Based Interventions for Fostering Healthy Academic Workplaces (ReMO 2023) in Budapest, Hungary. During the workshop we have presented one of the activities of the ReMO COST Action - drafting the national policy briefs on the researcher mental health across European COST countries, highlighting the vision and approach, presented the work-in-progress, and offered interactive facilitated exercises for participants to work in groups on mapping the stakeholders in their own national / regional context. The workshop concluded with sharing the findings in the audience and reflecting on the next possible steps.
description: This document is part of the ReMO 2023 Conference that was organized within the framework of COST Action CA19117 - "Researcher Mental Health". This presentation is based upon work supported by the Virtual Mobility Grant (to Mayya Sundukova) of the ReMO COST Action CA19117 and COST (European Cooperation in Science and Technology).
Giant Hub Src and Syk Tyrosine Kinase Thermodynamic Profiles Recapitulate Evolution
Creators: name: Phillips, J. C.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Other Quantitative Biology (q-bio.OT)
subject: FOS: Biological sciences

description: Thermodynamic scaling theory, previously applied mainly to small proteins, here analyzes quantitative evolution of the titled functional network giant hub enzymes. The broad domain structure identified homologically is confirmed hydropathically using amino acid sequences only. The most surprising results concern the evolution of the tyrosine kinase globular surface roughness from avian to mammals, which is first order, compared to the evolution within mammals from rodents to humans, which is second order. The mystery of the unique amide terminal region of proto oncogene tyrosine protein kinase is resolved by the discovery there of a septad targeting cluster, which is paralleled by an octad catalytic cluster in tyrosine kinase in humans and a few other species. These results, which go far towards explaining why these proteins are among the largest giant hubs in protein interaction networks, use no adjustable parameters.
description: 18 pages, 8 figures
The generalized r-Whitney numbers
Creators: name: El-Desouky, B. S.
name: Shiha, F. A.
name: Shokr, Ethar M.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Combinatorics (math.CO)
subject: FOS: Mathematics
subject: 05A19, 11B73, 11B75, 11C20

description: In this paper, we define the generalized r-Whitney numbers of the first and second kind. Moreover, we drive the generalized Whitney numbers of the first and second kind. The recurrence relations and the generating functions of these numbers are derived. The relations between these numbers and generalized Stirling numbers of the first and second kind are deduced. Furthermore, some special cases are given. Finally, matrix representation of The relations between Whitney and Stirling numbers are given.
description: 21 pages
Bright hot impacts by erupted fragments falling back on the Sun: magnetic channelling
Creators: name: Petralia, A.
name: Reale, F.
name: Orlando, S.
name: Testa, P.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: Dense plasma fragments were observed to fall back on the solar surface by the Solar Dynamics Observatory after an eruption on 7 June 2011, producing strong EUV brightenings. Previous studies investigated impacts in regions of weak magnetic field. Here we model the $\sim~300$ km/s impact of fragments channelled by the magnetic field close to active regions. In the observations, the magnetic channel brightens before the fragment impact. We use a 3D-MHD model of spherical blobs downfalling in a magnetized atmosphere. The blob parameters are constrained from the observation. We run numerical simulations with different ambient density and magnetic field intensity. We compare the model emission in the 171Å~ channel of the Atmospheric Imaging Assembly with the observed one. We find that a model of downfall channelled in a $\sim~1$MK coronal loop confined by a magnetic field of $\sim~10-20$G, best explains qualitatively and quantitatively the observed evolution. The blobs are highly deformed, further fragmented, when the ram pressure becomes comparable to the local magnetic pressure and they are deviated to be channelled by the field, because of the differential stress applied by the perturbed magnetic field. Ahead of them, in the relatively dense coronal medium, shock fronts propagate, heat and brighten the channel between the cold falling plasma and the solar surface. This study shows a new mechanism which brightens downflows channelled by the magnetic field, such as in accreting young stars, and also works as a probe of the ambient atmosphere, providing information about the local plasma density and magnetic field.
description: 17 pages, 14 figures
Spin filtering and thermopower in star coupled quantum dot devices
Creators: name: Andrade, J. A.
name: Cornaglia, Pablo S.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: We analyze the linear thermoelectric transport properties of devices with three quantum dots in a star configuration. A central quantum dot is tunnel-coupled to source and drain electrodes and to two additional quantum dots. For a wide range of parameters, in the absence of an external magnetic field, the system is a singular Fermi liquid with a non-analytic behavior of the electric transport properties at low energies. The singular behavior is associated with the development of a ferromagnetic or an underscreened Kondo effect, depending on the parameter regime. A magnetic field drives the system into a regular Fermi liquid regime and leads to a large peak ($\sim k_B/|e|$) in the spin thermopower as a function of the temperature, and to a $\sim 100\%$ spin polarized current for a wide range of parameters due to interference effects. We find a qualitatively equivalent behavior for systems with a larger number of side coupled quantum dots, with the maximum value of the spin thermopower decreasing as the number of side-coupled quantum dots increases.
The $Υ(nS)$ ${\to}$ $B_{c}^{\ast}π$, $B_{c}^{\ast}K$ decays with perturbative QCD approach
Creators: name: Sun, Junfeng
name: Yang, Yueling
name: Chang, Qin
name: Lu, Gongru
name: Huang, Jinshu
Publisher: name: arXiv
Year: 2016
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: Besides the traditional strong and electromagnetic decay modes, $Υ(nS)$ meson can also decay through the weak interactions within the standard model of elementary particle. With anticipation of copious $Υ(nS)$ data samples at the running LHC and coming SuperKEKB experiments, the two-body nonleptonic bottom-changing $Υ(nS)$ ${\to}$ $B_{c}^{\ast}π$, $B_{c}^{\ast}K$ decays ($n$ $=$ 1, 2, 3) are investigated with perturbative QCD approach firstly. The absolute branching ratios for $Υ(nS)$ ${\to}$ $B_{c}^{\ast}π$ and $B_{c}^{\ast}K$ decays are estimated to reach up to about $10^{-10}$ and $10^{-11}$, respectively, which might possibly be measured by the future experiments.
description: 16 pages, 3 figures
Optimal control of many-body quantum dynamics: chaos and complexity
Creators: name: Poggi, P. M.
name: Wisniacki, D. A.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Achieving full control of the time-evolution of a many-body quantum system is currently a major goal in physics. In this work we investigate the different ways in which the controllability of a quantum system can be influenced by its complexity, or even its chaotic properties. By using optimal control theory, we are able to derive the control fields necessary to drive various physical processes in a spin chain. Then, we study the spectral properties of such fields and how they relate to different aspects of the system complexity. We find that the spectral bandwidth of the fields is, quite generally, independent of the system dimension. Conversely, the spectral complexity of such fields does increase with the number of particles. Nevertheless, we find that the regular o chaotic nature of the system does not affect signficantly its controllability.
description: 9 pages, 5 figures
МОРФОЛОГО-АНАТОМИЧЕСКОЕ ИЗУЧЕНИЕ ЛИСТЬЕВ ЯСНОТКИ ПУРПУРНОЙ
Creators: name: Ефременко, Евгений
Publisher: name: ООО Цифра
Year: 2023
Subjects: genus Lamium
French nettle
leaves
morphological structure
anatomical structure
род Lamium
яснотка пурпурная
листья
морфологическое строение
анатомическое строение

description: Международный научно-исследовательский журнал, Выпуск 9 (135) 2023
Light Will be Thrown: The Emerging Science of Cultural Evolution
Creators: name: Buskes, Chris
Publisher: name: arXiv
Year: 2016
Subjects: subject: Populations and Evolution (q-bio.PE)
subject: Physics and Society (physics.soc-ph)
subject: FOS: Biological sciences
subject: FOS: Physical sciences

description: Culture evolves, not just in the trivial sense that cultures change over time, but also in the strong sense that such change is governed by Darwinian principles. Both biological and cultural evolution are essentially cumulative selection processes in which information (whether genetic or cultural) is sieved, retained and then transmitted to the next generation. In both domains such a process will result in recognizable lineages and tree-like phylogenies so characteristic of Darwinian evolution. Because a principle of inheritance (i.e., faithful replication of information) holds in both domains, we may trace back particular transmission histories and identify the forces that influenced them. The idea that culture evolves is quite old, but only in recent years there has been a serious effort to turn this idea into science. This article offers a concise analysis of how a rudimentary idea gradually evolved into a thriving research program.
Spinodal instabilities in polydisperse lyotropic nematics
Creators: name: Ferreiro-Córdova, C.
name: Wensink, H. H.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: Many lyotropic liquid crystals are composed of mesogens that display a considerable spread in size or shape affecting their material properties and thermodynamics via various demixing and multi-phase coexistence scenarios. Starting from a generalized Onsager theory we formulate a generic framework that enables locating spinodal polydispersities as well as identifying the nature of incipient size fractionation for arbitrary model potentials and size distributions. We apply our theory to nematic phases of both hard rods and disks whose main particle dimension is described by a unimodal log-normal distribution. We find that both rod-based and discotic nematics become unstable at a critical polydispersity of about 20 %. We also investigate the effect of doping nematic assemblies with a small fraction of large species and highlight their effect on the stability of the uniform nematic fluid. We find that while rod-based are only weakly affected by the presence of large species, doping discotic nematics with very large platelets leads to a remarkable suppression of the spinodal instabilities. This could open up routes towards controlling the mechanical properties of nematic materials by manipulating the local stability of nematic fluid and its tendency to undergo fractionation-driven microphase separation.
description: 9 pages, 5 figures
Mechanical behavior of composite double wall nanotubes from carbon and phosphorous
Creators: name: Cai, Kun
name: Wan, Jing
name: Yang, Likui
name: Wei, Ning
Publisher: name: arXiv
Year: 2016
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Black phosphorus is not stable when it is exposed to air. When covered or terminated by single layer carbon atoms, such as graphene carbon nanotube, it is more strongly protected in the rapid degradation than the bare black phosphorus. Moreover, due to weak interaction between phosphorus atoms in black phosphorene, the nanotube obtained by curling single layer black phosphorus is not as stable as a carbon nanotube at finite temperature. In present work, we recommend a new 1D material, i.e., composite double wall nanotubes from a black phosphorus nanotube with a CNT. The dynamic response of the composite DWNTs is simulated using molecular dynamics approach. The effects of such factors as temperature, slenderness and configurations of DWNTs are discussed. Comparing with a single wall BPNT, the composite DWNTs under uniaxial compression shows some peculiar properties. When the BPNT is embedded in a CNT, the system will not collapse rapidly even if the BPNT has been damaged seriously.
description: 13 pages, 6 figures
Status of CMB observations in 2015
Creators: name: Bucher, Martin
Publisher: name: arXiv
Year: 2016
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: The 2.725 K cosmic microwave background has played a key role in the development of modern cosmology by providing a solid observational foundation for constraining possible theories of what happened at very large redshifts and theoretical speculation reaching back almost to the would-be big bang initial singularity. After recounting some of the lesser known history of this area, I summarize the current observational situation and also discuss some exciting challenges that lie ahead: the search for B modes, the precision mapping of the CMB gravitational lensing potential, and the ultra-precise characterization of the CMB frequency spectrum, which would allow the exploitation of spectral distortions to probe new physics.
description: 17 pages, 3 figures, Latex, conference proceeding based on talk at CosPA 2015 in Daejeon, South Korea in October 2015, minor typos corrected
CGC/saturation approach: a new impact-parameter dependent model in the next-to-leading order of perturbative QCD
Creators: name: Contreras, Carlos
name: Levin, Eugene
name: Meneses, Rodrigo
name: Potashnikova, Irina
Publisher: name: arXiv
Year: 2016
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: This paper is the first attempt to build CGC/saturation model based on the next-to-leading order corrections to linear and non-linear evolution in QCD. We assume that the renormalization scale is the saturation momentum and found that the scattering amplitude has geometric scaling behaviour deep in the saturation domain with the explicit formula of this behaviour at large $τ= r^2 Q^2_s$. We built a model that include this behaviour, as well as the ingredients that has been known: (i) the behaviour of the scattering amplitude in the vicinity of the saturation momentum, using the NLO BFKL kernel, (ii) the pre-asymptotic behaviour of $\ln\Lb Q^2_s\Lb Y \Rb\Rb$, as function of $Y$ and (iii) the impact parameter behaviour of the saturation momentum, which has exponential behaviour $\propto \exp\Lb -\, m\, b\Rb$ at large $b$.We demonstrated that the model is able to describe the experimental data for the deep inelastic structure function. Despite this, our model has difficulties that are related to the small value of the QCD coupling at $Q_s\Lb Y_0\Rb$ and the large values of the saturation momentum, which indicate the theoretical inconsistency of our description.
description: 24pp, 13 figure in .pdf files. arXiv admin note: text overlap with arXiv:1508.02544
The source structure of 0642+449 detected from the CONT14 observations
Creators: name: Xu, Ming H.
name: Heinkelmann, Robert
name: Anderson, James M.
name: Mora-Diaz, Julian
name: Schuh, Harald
name: Wang, Guang L.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: The CONT14 campaign with state-of-the-art VLBI data has observed the source 0642+449 with about one thousand observables each day during a continuous observing period of fifteen days, providing tens of thousands of closure delays---the sum of the delays around a closed loop of baselines. The closure delay is independent of the instrumental and propagation delays and provides valuable additional information about the source structure. We demonstrate the use of this new "observable" for the determination of the structure in the radio source 0642+449. This source, as one of the defining sources in the second realization of the International Celestial Reference Frame (ICRF2), is found to have two point-like components with a relative position offset of -426 microarcseconds in right ascension and -66 microarcseconds in declination. The two components are almost equally bright with a flux-density ratio of 0.92. The standard deviation of closure delays for source 0642+449 was reduced from 139 ps to 90 ps by using this two-component model. Closure delays larger than one nanosecond are found to be related to the source structure, demonstrating that structure effects for a source with this simple structure could be up to tens of nanoseconds. The method described in this paper does not rely on a priori source structure information, such as knowledge of source structure determined from direct (Fourier) imaging of the same observations or observations at other epochs. We anticipate our study to be a starting point for more effective determination of the structure effect in VLBI observations.
description: 14 pages, 13 figures, Accepted by Astronomical Journal on 12 Jul, 2016
A Gentle Introduction and Survey on Computing with Words (CWW) Methodologies
Creators: name: Gupta, Prashant K.
name: Andreu-Perez, Javier
Publisher: name: arXiv
Year: 2022
Subjects: subject: Artificial Intelligence (cs.AI)
subject: Computation and Language (cs.CL)
subject: FOS: Computer and information sciences
subject: I.2.4; I.1.1
subject: 68T27, 03B52, 94D05

description: Human beings have an inherent capability to use linguistic information (LI) seamlessly even though it is vague and imprecise. Computing with Words (CWW) was proposed to impart computing systems with this capability of human beings. The interest in the field of CWW is evident from a number of publications on various CWW methodologies. These methodologies use different ways to model the semantics of the LI. However, to the best of our knowledge, the literature on these methodologies is mostly scattered and does not give an interested researcher a comprehensive but gentle guide about the notion and utility of these methodologies. Hence, to introduce the foundations and state-of-the-art CWW methodologies, we provide a concise but a wide-ranging coverage of them in a simple and easy to understand manner. We feel that the simplicity with which we give a high-quality review and introduction to the CWW methodologies is very useful for investigators, especially those embarking on the use of CWW for the first time. We also provide future research directions to build upon for the interested and motivated researchers.
GUILLERMO CABRERA INFANTE: SUPERAR EL EXPERIMENTALISMO LINGÜÍSTICO
Creators: name: Giordano, Roberta
Publisher: name: Zenodo
Year: 2018
Subjects: Guillermo Cabrera Infante, Cuba, Experimentalismo lingüístico, Parodia, Oralidad.

description: Il lavoro è una proposta di riflessione sulle caratteristiche espressive del famoso scrittore cubano Guillermo Cabrera Infante
Quantum entanglement for two qubits in a nonstationary cavity
Creators: name: Berman, Oleg L.
name: Kezerashvili, Roman Ya.
name: Lozovik, Yurii E.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Quantum Physics (quant-ph)
subject: Superconductivity (cond-mat.supr-con)
subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: The quantum entanglement and the probability of the dynamical Lamb effect for two qubits caused by non-adiabatic fast change of the boundary conditions are studied. The conditional concurrence of the qubits for each fixed number of created photons in a nonstationary cavity is obtained as a measure of the dynamical quantum entanglement due to the dynamical Lamb effect. We discuss the physical realization of the dynamical Lamb effect, based on superconducting qubits.
description: 7 pages
Sequencing Chess
Creators: name: Atashpendar, A.
name: Schilling, T.
name: Voigtmann, Th.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Artificial Intelligence (cs.AI)
subject: FOS: Computer and information sciences

description: We analyze the structure of the state space of chess by means of transition path sampling Monte Carlo simulation. Based on the typical number of moves required to transpose a given configuration of chess pieces into another, we conclude that the state space consists of several pockets between which transitions are rare. Skilled players explore an even smaller subset of positions that populate some of these pockets only very sparsely. These results suggest that the usual measures to estimate both, the size of the state space and the size of the tree of legal moves, are not unique indicators of the complexity of the game, but that topological considerations are equally important.
Resonant spectra of quadrupolar anions
Creators: name: Fossez, K.
name: Mao, Xingze
name: Nazarewicz, W.
name: Michel, N.
name: Garrett, W. R.
name: Płoszajczak, M.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Atomic and Molecular Clusters (physics.atm-clus)
subject: Chemical Physics (physics.chem-ph)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: In quadrupole-bound anions, an extra electron is attached at a sufficiently large quadrupole moment of a neutral molecule, which is lacking a permanent dipole moment. The nature of the bound states and low-lying resonances of such anions is of interest for understanding the threshold behavior of open quantum systems in general. In this work, we investigate the properties of quadrupolar anions as extreme halo systems, the formation of rotational bands, and the transition from a subcritical to supercritical electric quadrupole moment. We solve the electron-plus-molecule problem using a non-adiabatic coupled-channel formalism by employing the Berggren ensemble, which explicitly contains bound states, narrow resonances, and the scattering continuum. We demonstrate that binding energies and radii of quadrupolar anions strictly follow the scaling laws for two-body halo systems. Contrary to the case of dipolar anions, ground-state band of quadrupolar anions smoothly extend into the continuum, and many rotational bands could be identified above the detachment threshold. We study the evolution of a bound state of an anion as to dives into the continuum at a critical quadrupole moment and we show that the associated critical exponent is consistent with the second-order phase transition. Everything considered, quadrupolar anions represent a perfect laboratory for the studies of marginally bound open quantum systems.
Limits on the effective quark radius from inclusive ep scattering & contact interactions at HERA
Creators: name: Zarnecki, Aleksander Filip
Publisher: name: arXiv
Year: 2016
Subjects: subject: High Energy Physics - Experiment (hep-ex)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: The high-precision HERA data allow searches for up to TeV scales "Beyond the Standard Model" contributions to electron-quark scattering. Combined H1 and ZEUS measurements of inclusive deep inelastic cross sections in neutral and charged current ep scattering are considered, corresponding to a luminosity of around 1 fb$^{-1}$. A new approach to the beyond the Standard Model analysis of the inclusive $ep$ data is presented; simultaneous fits of parton distribution functions and contributions of "new physics" processes are performed. Considered are possible deviations from the Standard Model due to a finite radius of quarks, described within the quark form-factor model, and due to new electron-quark interactions in the framework of $eeqq$ contact interactions (CI). The resulting 95% C.L. upper limit on the effective quark radius is $0.43\cdot 10^{-16}$ cm. The limits on the CI mass scale extend up to 10 TeV depending on the CI scenario.
description: 6 pages, 3 figures, submitted to proceedings of ICHEP'2016, presented on behalf of the ZEUS Collaboration
ПЕДАГОГИЧЕСКИЙ ОПЫТ ИВАНА ЯКОВЛЕВИЧА СЛОВЦОВА
Creators: name: Сообщество рецензентов Международного научно-исследовательского журнала
Publisher: name: ООО Цифра
Year: 2023
Subjects: I.Y. Slovtsov
pedagogical experience
teaching methods
educational museum
educational methods
И.Я. Словцов
педагогический опыт
методы преподавания
учебный музей
методы воспитания

description: Международный научно-исследовательский журнал, Выпуск 9 (135) 2023
Properties of strongly magnetized ultradense matter and their imprints on magnetar pulsations
Creators: name: Flores, C. Vásquez
name: Castro, L. B.
name: Lugones, G.
Publisher: name: arXiv
Year: 2016
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: We investigate the effect of strong magnetic fields on the adiabatic radial oscillations of hadronic stars. We describe magnetized hadronic matter within the framework of the relativistic nonlinear Walecka model and integrate the equations of relativistic radial oscillations to determine the fundamental pulsation mode. We consider that the magnetic field increases, in a density dependent way, from the surface, where it has a typical magnetar value of $10^{15}$ G, to the interior of the star where it can be as large as $3 \times 10^{18}$ G. We show that magnetic fields of the order of $10^{18}$ G at the stellar core produce a significant change in the frequency of neutron star pulsations with respect to unmagnetized objects. If radial pulsations are excited in magnetar flares, they can leave an imprint in the flare lightcurves and open a new window for the study of highly magnetized ultradense matter.
description: To be published in Physical Review C
High Power Polarized Positron Source
Creators: name: Mikhailichenko, Alexander
Publisher: name: arXiv
Year: 2016
Subjects: subject: Accelerator Physics (physics.acc-ph)
subject: FOS: Physical sciences

description: We discuss the basis of polarized positron production by low energy polarized electrons. Efficiency of conversion ~0.1-1% might be interesting for CEBAF facility and ILC as well.
description: 5 pages, Presented at International Workshop on Positrons at Jefferson Lab., March 25-27, 2009, Thomas Jefferson National Accelerator Facility, Newport News, VA 23606
Maximal independent sets in Borel graphs and large cardinals
Creators: name: Horowitz, Haim
name: Shelah, Saharon
Publisher: name: arXiv
Year: 2016
Subjects: subject: Logic (math.LO)
subject: FOS: Mathematics

description: We construct a Borel graph G such that ZF+DC+"There are no maximal independent sets in G" is equiconsistent with ZFC+"There exists an inaccessible cardinal".
$D \rightarrow a_1, f_1$ transition form factors and semileptonic decays via 3-point QCD sum rules
Creators: name: Zuo, Yabing
name: Hu, Yue
name: He, Linlin
name: Yang, Wei
name: Chen, Yan
name: Hao, Yannan
Publisher: name: arXiv
Year: 2016
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: By using the 3-point QCD sum rules, we calculate the transition form factors of $D$ decays into the spin triplet axial vector mesons $a_1(1260)$, $f_1(1285) $, $f_1(1420)$. In the calculations, we consider the quark contents of each meson in detail. In view of the fact that the isospin of $a_1(1260)$ is one, we calculate the $D^+ \rightarrow a_1^0 (1260)$ and $D^0 \rightarrow a_1^- (1260)$ transition form factors separately. In the case of $ f_1(1285), f_1(1420)$, the mixing between light flavor $SU(3)$ singlet and octet is taken into account. Based on the form factors obtained here, we give predictions for the branching ratios of relevant semileptonic decays, which can be tested in the future experiments.
description: 14 pages, 13 figures
ИССЛЕДОВАНИЕ МЕСТНОГО ИММУНИТЕТА У ПАЦИЕНТОВ С ХРОНИЧЕСКИМ РЕЦИДИВИРУЮЩИМ АФТОЗНЫМ СТОМАТИТОМ НА ФОНЕ ТЕРАПИИ АНТИСЕПТИКАМИ И РЕПАРАНТАМИ
Creators: name: Сообщество рецензентов Международного научно-исследовательского журнала
Publisher: name: ООО Цифра
Year: 2023
Subjects: chronic recurrent aphthous stomatitis
local immunity
cellular immunity
humoral immunity
хронический рецидивирующий афтозный стоматит
местный иммунитет
клеточный иммунитет
гуморальный иммунитет

description: Международный научно-исследовательский журнал, Выпуск 9 (135) 2023
The vanishing discount problem and viscosity Mather measures. Part 2: boundary value problems
Creators: name: Ishii, Hitoshi
name: Mitake, Hiroyoshi
name: Tran, Hung V.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Analysis of PDEs (math.AP)
subject: FOS: Mathematics
subject: 35B40, 35J70, 49L25

description: In arXiv:1603.01051 (Part 1 of this series), we have introduced a variational approach to studying the vanishing discount problem for fully nonlinear, degenerate elliptic, partial differential equations in a torus. We develop this approach further here to handle boundary value problems. In particular, we establish new representation formulas for solutions of discount problems, critical values, and use them to prove convergence results for the vanishing discount problems.
description: 40 pages
Strong Couplings of Three Mesons with Charm(ing) Involvement
Creators: name: Lucha, Wolfgang
name: Melikhov, Dmitri
name: Sazdjian, Hagop
name: Simula, Silvano
Publisher: name: arXiv
Year: 2016
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: We determine the strong couplings of three mesons that involve, at least, one $η_c$ or $J/ψ$ meson, within the framework of a constituent-quark model by means of relativistic dispersion formulations. For strong couplings of $J/ψ$ mesons to two charmed mesons, our approach leads to predictions roughly twice as large as those arising from QCD sum rules.
description: 5 pages, 3 figures, contributed to "Quark Confinement and the Hadron Spectrum XII" (28 August - 3 September 2016, Thessaloniki, Greece)
Conformity in virtual environments: a hybrid neurophysiological and psychosocial approach
Creators: name: Perfumi, Serena Coppolino
name: Cardelli, Chiara
name: Bagnoli, Franco
name: Guazzini, Andrea
Publisher: name: arXiv
Year: 2016
Subjects: subject: Human-Computer Interaction (cs.HC)
subject: FOS: Computer and information sciences

description: The main aim of our study was to analyse the effects of a virtual environment on social conformity, with particular attention to the effects of different types of task and psychological variables on social influence, on one side, and to the neural correlates related to conformity, measured by means of an Emotiv EPOC device on the other. For our purpose, we replicated the famous Asch's visual task and created two new tasks of increasing ambiguity, assessed through the calculation of the item's entropy. We also administered five scales in order to assess different psychological traits. From the experiment, conducted on 181 university students, emerged that conformity grows according to the ambiguity of the task, but normative influence is significantly weaker in virtual environments, if compared to face-to-face experiments. The analysed psycho-logical traits, however, result not to be relatable to conformity, and they only affect the subjects' response times. From the ERP (Event-related potentials) analysis, we detected N200 and P300 components comparing the plots of conformist and non-conformist subjects, alongside with the detection of their Late Positive Potential, Readiness Potential, and Error-Related Negativity, which appear consistently different for the two typologies.