cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Simulation study of the two-dimensional Burridge-Knopoff model of earthquakes
Creators: name: Mori, Takahiro
name: Kawamura, Hikaru
Publisher: name: arXiv
Year: 2007
Subjects: subject: Other Condensed Matter (cond-mat.other)
subject: Geophysics (physics.geo-ph)
subject: FOS: Physical sciences

description: Spatiotemporal correlations of the two-dimensional spring-block (Burridge-Knopoff) model of earthquakes are extensively studied by means of numerical computer simulations. The model is found to exhibit either ``subcritical'' or ``supercritical'' behavior, depending on the values of the model parameters. Transition between these regimes is either continuous or discontinuous. Seismic events in the ``subcritical'' regime and those in the ``supercritical'' regime at larger magnitudes exhibit universal scaling properties. In the ``supercritical'' regime, eminent spatiotemporal correlations, {\it e.g.}, remarkable growth of seismic activity preceding the mainshock, arise in earthquake occurrence, whereas such spatiotemporal correlations are significantly suppressed in the ``subcritical'' regime. Seismic activity is generically suppressed just before the mainshock in a close vicinity of the epicenter of the upcoming event while it remains to be active in the surroundings (the Mogi doughnut). It is also observed that, before and after the mainshock, the apparent $B$-value of the magnitude distribution decreases or increases in the ``supercritical'' or ``subcritical'' regimes, respectively. Such distinct precursory phenomena may open a way to the prediction of the upcoming large event.
Simulating a stellar contact binary merger -- I. Stellar models
Creators: name: Hatfull, Roger W. M.
name: Ivanova, Natalia
name: Lombardi, James C.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: We study the initial conditions of a common envelope (CE) event resulting in a stellar merger. A merger's dynamics could be understood through its light curve, but no synthetic light curve has yet been created for the full evolution. Using the Smoothed Particle Hydrodynamics (SPH) code StarSmasher, we have created three-dimensional (3D) models of a 1.52 $M_\odot$ star that is a plausible donor in the V1309 Sco progenitor. The integrated total energy profiles of our 3D models match their initial one-dimensional (1D) models to within a 0.1 per cent difference in the top 0.1 $M_\odot$ of their envelopes. We have introduced a new method for obtaining radiative flux by linking intrinsically optically thick SPH particles to a single stellar envelope solution from a set of unique solutions. For the first time, we calculated our 3D models' effective temperatures to within a few per cent of the initial 1D models, and found a corresponding improvement in luminosity by a factor of $\gtrsim10^6$ compared to ray tracing. We let our highest resolution 3D model undergo Roche-lobe overflow with a 0.16 $M_\odot$ point-mass accretor ($P\simeq1.6$ days) and found a bolometric magnitude variability amplitude of $\sim0.3$ -- comparable to that of the V1309 Sco progenitor. Our 3D models are, in the top 0.1 $M_\odot$ of the envelope and in terms of total energy, the most accurate models so far of the V1309 Sco donor star. A dynamical simulation that uses the initial conditions we presented in this paper can be used to create the first ever synthetic CE evolution light curve.
description: 13 pages, 7 figures, 3 tables. Accepted for publication in MNRAS
Mario NEGRI, Giovanna ROCCA, Marta MUSCARIELLO (a cura di), L’opera scientifica di Vittore Pisani nel quadro della glottologia indeuropea fra Ottocento e Novecento. Atti del Workshop del L Congresso Internazionale SLI (Milano, 22 settembre 2016) [= «Alessandria. Rivista di Glottologia» 11 (2017)]
Creators: name: Pontani, Paola
Publisher: name: Atti del sodalizio glottologico milanese
Year: 2019

description: Atti del sodalizio glottologico milanese, V. 2018, N. 13 (2019)
Modulational instability and nonlocality management in coupled NLS system
Creators: name: Doktorov, Evgeny V.
name: Molchan, Maxim A.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Pattern Formation and Solitons (nlin.PS)
subject: FOS: Physical sciences

description: The modulational instability of two interacting waves in a nonlocal Kerr-type medium is considered analytically and numerically. For a generic choice of wave amplitudes, we give a complete description of stable/unstable regimes for zero group-velocity mismatch. It is shown that nonlocality suppresses considerably the growth rate and bandwidth of instability. For nonzero group-velocity mismatch we perform a geometrical analysis of a nonlocality management which can provide stability of waves otherwise unstable in a local medium.
description: 15 pages, 12 figures, to be published in Physica Scripta
Detecting quantum-coherent nanomechanical oscillations using the current-noise spectrum of a double quantum dot
Creators: name: Lambert, Neill
name: Nori, Franco
Publisher: name: arXiv
Year: 2008
Subjects: subject: Quantum Physics (quant-ph)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We consider a nanomechanical resonator coupled to a double quantum dot. We demonstrate how the finite-frequency current noise spectrum through the double quantum dot can be used to distinguish classical and quantum behaviour in the nearby nano-electromechanical resonator. We also show how the full frequency current noise spectrum gives important information on the combined double quantum dot-resonator energy spectrum. Finally, we point out regimes where the quantum state of the resonator becomes squeezed, and also examine the cross-correlated electron-phonon current noise.
description: 11 pages, 6 figures
The cloudy bag model
Creators: name: Théberge, Serge
Publisher: name: University of British Columbia
Year: 2010

description: In this thesis, a new model for the internal structure of baryons, the Cloudy Bag Model (CBM), is presented. The baryons are assumed to be made of quarks permanently confined in a static spherical cavity called the "Bag", and of a cloud of pions which couple to the quarks at the bag surface in a way which restores chiral symmetry. When the CBM Lagrangian density is projected on the space of colourless baryons, a Hamiltonian theory of baryons coupled to pions is obtained. The model describes successfully the P₃₃ resonance in pion-nucleon scattering, the magnetic moments of the baryon octet and the charge radii of the nucleon. All these results agree rather well with experiment when the only true free parameter of the theory, the bag radius, is chosen anywhere in the range 0.8 to 1.1 fermi.
Oedichira Burmeister 1855
Creators: name: Fuhrmann, Juares
name: Vaz-De-Mello, Fernando Z.
Publisher: name: Zenodo
Year: 2017
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Coleoptera
Scarabaeidae
Oedichira

description: Oedichira Burmeister, 1855
Type species
Oedichira pachydactyla Burmeister, 1855 (designation: Evans 2003: 303).
Diagnosis
Antennae with four lamellae (Fig. 4 I–J); clypeal ventral area large and vertically deflected; labrum deeply emarginate; pronotal anterior and posterior margin not beaded; prosternum with an anterior longitudinal carina; elytral striae indistinct, posterior and posterointernal margins not beaded; metatarsomere I as long as II–IV; metatarsomere II wider than long; metatarsomere V with internoproximal spine-like setae (Fig. 4 C–D).
Remarks
See Anomonyx (above).
description: Published as part of Fuhrmann, Juares & Vaz-De-Mello, Fernando Z., 2017, Macrodactylini (Coleoptera, Scarabaeidae, Melolonthinae): primary types of type species and taxonomic changes to the generic classification, pp. 1-71 in European Journal of Taxonomy 350 on pages 39-40, DOI: 10.5852/ejt.2017.350, http://zenodo.org/record/3832682
A hierarchical Bayesian approach for estimating the origin of a mixed population
Creators: name: Guo, Feng
name: Dey, Dipak K.
name: Holsinger, Kent E.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Applications (stat.AP)
subject: Methodology (stat.ME)
subject: FOS: Computer and information sciences
subject: 60K35, 60K35 (Primary) 60K35 (Secondary)

description: We propose a hierarchical Bayesian model to estimate the proportional contribution of source populations to a newly founded colony. Samples are derived from the first generation offspring in the colony, but mating may occur preferentially among migrants from the same source population. Genotypes of the newly founded colony and source populations are used to estimate the mixture proportions, and the mixture proportions are related to environmental and demographic factors that might affect the colonizing process. We estimate an assortative mating coefficient, mixture proportions, and regression relationships between environmental factors and the mixture proportions in a single hierarchical model. The first-stage likelihood for genotypes in the newly founded colony is a mixture multinomial distribution reflecting the colonizing process. The environmental and demographic data are incorporated into the model through a hierarchical prior structure. A simulation study is conducted to investigate the performance of the model by using different levels of population divergence and number of genetic markers included in the analysis. We use Markov chain Monte Carlo (MCMC) simulation to conduct inference for the posterior distributions of model parameters. We apply the model to a data set derived from grey seals in the Orkney Islands, Scotland. We compare our model with a similar model previously used to analyze these data. The results from both the simulation and application to real data indicate that our model provides better estimates for the covariate effects.
description: Published in at http://dx.doi.org/10.1214/074921708000000174 the IMS Collections (http://www.imstat.org/publications/imscollections.htm) by the Institute of Mathematical Statistics (http://www.imstat.org)
Escape from the Bermuda cluster: orphanization by multiple stellar ejections
Creators: name: Apellániz, J. Maíz
name: González, M. Pantaleoni
name: Barbá, R. H.
name: Weiler, M.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: CONTEXT. Dynamical interactions in young stellar clusters can eject massive stars early in their lives and significantly alter their mass functions. If all of the most massive stars are lost, we are left with an orphan cluster. AIMS. We study the Bermuda cluster (Villafranca O-014 NW), the most significant young stellar group in the North America and Pelican nebulae, and the massive stars that may have been ejected from it to test if it has been orphaned. METHODS. We use Gaia EDR3 parallaxes and proper motions to search for walkaway/runaway stars in the vicinity of the North America and Pelican nebulae. The candidates are analyzed with spectroscopy and photometry to assess their nature and their trajectories are traced back in time to determine at what time they left the Bermuda cluster. RESULTS. We detect three ejection events (Bajamar, Toronto, and HD 201 795 events) that expelled 5, 2, and 2 systems, respectively, or 6, 3, and 3 stars if we count the individual components in spectroscopic/eclipsing binaries. The events took place 1.611$\pm$0.011 Ma, 1.496$\pm$0.044 Ma, and 1.905$\pm$0.037 Ma ago, respectively, but our analysis is marginally consistent with the first two being simultaneous. We detect bow shocks in WISE images associated with four of the ejected systems. Combining the three events, the Bermuda cluster has lost >200 M_Sol, including its three most massive stars, so it can be considered an orphan cluster. One consequence is that the PDMF of the cluster has been radically altered from its top-heavy initial value to one compatible with a Kroupa-like function. Another one is that the cluster is currently expanding with a dynamical time scale consistent with the cause being the ejection events. A scenario in which the Bermuda cluster was formed in a conveyor belt fashion over several hundreds of ka or even 1 Ma is consistent with all the observables. [ABRIDGED]
description: Accepted for publication in A&A. New version after acceptance with some added content suggested by referee
The Riemann-Hilbert problem and the generalized Neumann kernel on unbounded multiply connected regions
Creators: name: Nasser, Mohamed M. S.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Complex Variables (math.CV)
subject: FOS: Mathematics
subject: 30E25, 45B05

description: A Fredholm integral equation of the second kind with the generalized Neumann kernel associated with the Riemann-Hilbert problem on unbounded multiply connected regions will be derived and studied in this paper. The derived integral equation yields a uniquely solvable boundary integral equations for the modified Dirichlet problem on unbounded multiply connected regions.
Caderno Pedagógico #ECOS
Creators: name: Ferreira, Sónia
name: Prista, Marta
name: Vespeira de Almeida, Sónia
name: Correia, Ricardo
name: dos Santos, Hugo
Publisher: name: Projeto #ECOS
Year: 2021

description: O QUE É O PROJETO #ECOS

Entre 1926 e 1974 milhares de portugueses tomaram o caminho do exílio. Este, frequentemente incluído na contabilização dos movimentos migratórios da época, integra um dos mais importantes fluxos de pessoas da história do Portugal do último século. O projeto “#ECOS. Exílios, contrariar o silêncio: memórias, objetos e narrativas de tempos incertos” pretende interrogar a memória desta mobilidade específica, partindo do campo disciplinar das Ciências Sociais, e incidindo sobre arquivos, objetos e construções memorabilísticas de exilados portugueses.

Nesse sentido, o projeto propõe um conjunto de iniciativas que visam contribuir: a) para a promoção de um debate público na sociedade europeia sobre os processos de exílio com principal, embora não exclusivo, enfoque no exemplo português; b) para a construção de um património sobre estes processos a partir de espólios pessoais e arquivísticos, com particular destaque para os objetos da cultura material; c) para aprofundar o conhecimento do público escolar sobre a história da Europa e dos seus diferentes regimes políticos.

#ECOS visa assim uma consciencialização sobre o passado e uma aprendizagem para o futuro, amplamente pertinente nos debates contemporâneos sobre mobilidades, políticas de acolhimento, xenofobia e populismo. O projeto, ao dar visibilidade a experiências biográficas transnacionais, adquire relevância numa Europa atualmente marcada por crises sociais, económicas e políticas.

O público alvo do projeto são instituições escolares e associativas que permitam a implementação de atividades de carácter pedagógico e de divulgação científica sobre estas temáticas. Nesse sentido, #ECOS articula-se em torno de propostas de atividades múltiplas, da promoção de debates à coprodução artística, concebidas por uma equipa multidisciplinar (académicos, artistas, exilados, alunos, professores) e internacional (Portugal, França, Dinamarca). Tendo o espaço europeu como pano de fundo, #ECOS pretende promover o diálogo intercultural entre jovens e menos jovens, alunos e professores, migrantes, exilados, académicos e artistas.

As atividades e fichas aqui propostas visam estimular esse diálogo, promovendo novas mobilidades, trocas e intercâmbios de ideias, projetos e práticas pedagógicas.
Constraining neutron star tidal Love numbers with gravitational wave detectors
Creators: name: Flanagan, Eanna E.
name: Hinderer, Tanja
Publisher: name: arXiv
Year: 2007
Subjects: subject: Astrophysics (astro-ph)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: Ground-based gravitational wave detectors may be able to constrain the nuclear equation of state using the early, low frequency portion of the signal of detected neutron star - neutron star inspirals. In this early adiabatic regime, the influence of a neutron star's internal structure on the phase of the waveform depends only on a single parameter lambda of the star related to its tidal Love number, namely the ratio of the induced quadrupole moment to the perturbing tidal gravitational field. We analyze the information obtainable from gravitational wave frequencies smaller than a cutoff frequency of 400 Hz, where corrections to the internal-structure signal are less than 10 percent. For an inspiral of two non-spinning 1.4 solar mass neutron stars at a distance of 50 Mpc, LIGO II detectors will be able to constrain lambda to lambda < 2.0 10^{37} g cm^2 s^2 with 90% confidence. Fully relativistic stellar models show that the corresponding constraint on radius R for 1.4 solar mass neutron stars would be R < 13.6 km (15.3 km) for a n=0.5 (n=1.0) polytrope.
description: 4 pages, 2 figures, minor corrections
Time-Dependent Pseudo-Hermitian Hamiltonians Defining a Unitary Quantum System and Uniqueness of the Metric Operator
Creators: name: Mostafazadeh, Ali
Publisher: name: arXiv
Year: 2007
Subjects: subject: Quantum Physics (quant-ph)
subject: High Energy Physics - Theory (hep-th)
subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: The quantum measurement axiom dictates that physical observables and in particular the Hamiltonian must be diagonalizable and have a real spectrum. For a time-independent Hamiltonian (with a discrete spectrum) these conditions ensure the existence of a positive-definite inner product that renders the Hamiltonian self-adjoint. Unlike for a time-independent Hamiltonian, this does not imply the unitarity of the Schroedinger time-evolution for a general time-dependent Hamiltonian. We give an additional necessary and sufficient condition for the unitarity of time-evolution. In particular, we obtain the general form of a two-level Hamiltonian that fulfils this condition. We show that this condition is geometrical in nature and that it implies the reality of the adiabatic geometric phases. We also address the problem of the uniqueness of the metric operator.
description: 11 pages, published version
Exponential Lower Bounds for Quasimodes of Semiclassical Schrödinger Operators
Creators: name: VanValkenburgh, Michael
Publisher: name: arXiv
Year: 2008
Subjects: subject: Analysis of PDEs (math.AP)
subject: FOS: Mathematics
subject: 35P20

description: We prove quantitative unique continuation results for the semiclassical Schrodinger operator on smooth, compact domains. These take the form of exponentially decreasing (in h) local L^{2} lower bounds for exponentially precise quasimodes. We also show that these lower bounds are sharp in h, and that, moreover, the hypothesized quasimode accuracy is also sharp.
description: 14 pages, no figures; cosmetic changes. Final version, to appear in Mathematical Research Letters
Oedichira pachydactyla Burmeister 1855
Creators: name: Fuhrmann, Juares
name: Vaz-De-Mello, Fernando Z.
Publisher: name: Zenodo
Year: 2017
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Coleoptera
Scarabaeidae
Oedichira
Oedichira pachydactyla

description: Oedichira pachydactyla Burmeister, 1855
Figs 4 C–D, G–J, 19G–H
Oedichira pachydactyla Burmeister, 1855: 81.
Note
Oedichira pachydactyla was described based on an undetermined number of specimens.
Material examined
Lectotype (here designated, Fig. 19 G–H)
BRAZIL: ♂, ZNSM, labels: [Oedichira | Burm.] {drawer label} [pachydactyla | Bras. Br.] {drawer label} [LECTOTYPE | Oedichira pachydactyla | Burmeister, 1855 | ♂ | des. J. Fuhrmann & | F.Z. Vazde-Mello, 2014].
Paralectotypes (n = 2)
BRAZIL: 1 ♀, ZNSM, labels: [Oedichira | Burm.] {drawer label} [pachydactyla | Bras. Br.] {drawer label} [Nov. | Frib.] [Oedichira | pachydactylla | Burmeister | fide K. Katovich 2002] [PARALECTOTYPE | Oedichira pachydactyla | Burmeister, 1855 | ♀ | des. J. Fuhrmann & | F.Z. Vaz-de-Mello, 2014]; 1 ♀, ZNSM, labels: [Oedichira | Burm.] {drawer label} [pachydactyla | Bras. Br.] {drawer label} [PARALECTOTYPE | Oedichira pachydactyla | Burmeister, 1855 | ♀ | des. J. Fuhrmann & | F.Z. Vazde-Mello, 2014].
description: Published as part of Fuhrmann, Juares & Vaz-De-Mello, Fernando Z., 2017, Macrodactylini (Coleoptera, Scarabaeidae, Melolonthinae): primary types of type species and taxonomic changes to the generic classification, pp. 1-71 in European Journal of Taxonomy 350 on page 40, DOI: 10.5852/ejt.2017.350, http://zenodo.org/record/3832682
Interaction Ruling Animal Collective Behaviour Depends on Topological rather than Metric Distance: Evidence from a Field Study
Creators: name: Ballerini, M.
name: Cabibbo, N.
name: Candelier, R.
name: Cavagna, A.
name: Cisbani, E.
name: Giardina, I.
name: Lecomte, V.
name: Orlandi, A.
name: Parisi, G.
name: Procaccini, A.
name: Viale, M.
name: Zdravkovic, V.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Populations and Evolution (q-bio.PE)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Biological sciences
subject: FOS: Physical sciences

description: Numerical models indicate that collective animal behaviour may emerge from simple local rules of interaction among the individuals. However, very little is known about the nature of such interaction, so that models and theories mostly rely on aprioristic assumptions. By reconstructing the three-dimensional position of individual birds in airborne flocks of few thousands members, we prove that the interaction does not depend on the metric distance, as most current models and theories assume, but rather on the topological distance. In fact, we discover that each bird interacts on average with a fixed number of neighbours (six-seven), rather than with all neighbours within a fixed metric distance. We argue that a topological interaction is indispensable to maintain flock's cohesion against the large density changes caused by external perturbations, typically predation. We support this hypothesis by numerical simulations, showing that a topological interaction grants significantly higher cohesion of the aggregation compared to a standard metric one.
description: To be submitted to PNAS - 25 pages
First-principles study of the electronic structure of CaKRu$_4$P$_4$
Creators: name: Zhao, Xinlei
name: Ma, Fengjie
name: Lu, Zhong-Yi
Publisher: name: arXiv
Year: 2021
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: The recent discovery and studies of 1144-phase compounds, e.g., CaKFe$_4$As$_4$, have attracted significant research interest. In this paper, based on the first-principles density functional calculations, we present a systematic study on the electronic structure of the recently synthetized 1144-type quaternary compound CaKRu$_4$P$_4$. We find that the Ru-based 1144-type compound possesses a different electronic structure from that of iron-based superconductors, even though they share very similar crystallographic structures. In CaKRu$_4$P$_4$, there is no hole-type carrier if spin-orbit interaction is not considered. And a long-range magnetic order is absent in its ground state. With the application of pressure, the electronic structure of CaKRu$_4$P$_4$ becomes similar to those of the ternary 122-type compounds LaRu$_2$P$_2$ and LaRu$_2$As$_2$. CaKRu$_4$P$_4$ is very likely to be a phonon-mediated medium coupled BCS superconductor. Furthermore, type-I and type-II Dirac fermions can be created and regulated in this system with pressure. The quaternary compound CaKRu$_4$P$_4$ therefore has a potential to be an attractive platform for the study of topological physics and superconductivity.
description: 7 pages,5 figures
Biochemical changes in compatible and incompatible flax/flax rust interactions
Creators: name: Sutton, Benjamin C. S.
Publisher: name: University of British Columbia
Year: 2010

description: The possible biochemical mechanisms of varietal and species specificity of obligate fungal parasites are considered in relation to the established genetics and biochemistry of host-parasite systems. The two general theories of specificity which have been put forward are identified. One invokes the induction of successful pathogenesis as a primary determinant in specificity while the other predicts that recognition of avirulent pathogens by the host leads to induced resistance which acts as the determinant in specificity. The former theory is supported by evidence for the appearance of novel host enzymes during disease development. The latter is supported by observations of host gene derepression and phytoalexin accumulation which occur in resistance responses at times prior to any significant response in susceptible combinations. These theories are examined experimentally in the flax/flax rust system. The molecular origin of ribonuclease with altered catalytic properties, which arises during disease development, is examined. Rigorous purification reveals that the altered catalytic properties can be accounted for by altered proportions of ribonuclease I isozymes. These changes are similar during resistant and susceptible reactions until sporulation occurs. Induced resistance is characterized and compared to primary changes during susceptibility through a detailed study of RNA and protein synthesis. Enhanced RNA synthesis occurs in the resistant reaction at times prior to any measurable response in the susceptible combination, although both combinations exhibit higher rates of RNA synthesis at later times. RNA was fractionated by electrophoresis and affinity chromatography and messenger activity assessed by in vitro translation. Enhanced RNA synthesis is characterized by decreased messenger polyadenylation. However, polyadenylated and non-polyadenylated messenger RNA were shown to encode many common polypeptides; this provides an explanation for the fact that few changes in iri vivo protein synthesis can be detected by one or two dimensional electrophoresis. The only marked changes in protein synthesis occur in the susceptible combination and include a dramatic decline in the synthesis of the large subunit of ribulose-1,5-bisphosphate carboxylase. It is concluded that incompatibility of an avirulent race of rust with the flax variety Bombay is determined by induced resistance resulting from recognition of the avirulent pathogen prior to the initiation of pathogenesis. However, specific biochemical events in the host, particularly those involving chloroplast function, may be necessary for successful pathogen development.
Systematic Comparison of Jet Energy-Loss Schemes in a 3D hydrodynamic medium
Creators: name: Bass, S. A.
name: Gale, C.
name: Majumder, A.
name: Nonaka, C.
name: Qin, G. -Y.
name: Renk, T.
name: Ruppert, J.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: We utilize a 3D hydrodynamic model to provide the medium evolution for a systematic comparison of jet energy-loss calculations in the BDMPS/ASW, HT and AMY approaches. We find that the parameters of all three calculations can be adjusted to provide a good description of inclusive data on $R_{AA}$ versus transverse momentum. However, we do observe slight differences in their predictions for the azimuthal angular dependence of $R_{AA}$ vs. $p_T$. We also note that the value of the transport coefficient $\hat{q}$ needed in the three approaches to describe the data differs significantly.
description: 4 pages, 4 figures, proceedings of Quark Matter 2008
КИБЕРСПОРТ КАК УЧЕБНАЯ ДИСЦИПЛИНА
Creators: name: ЖУРАВЛЕВА Людмила Анатольевна
name: ЗАРУБИНА Елена Васильевна
name: РУЧКИН Алексей Владимирович
name: СИМАЧКОВА Наталья Николаевна
name: ЧУПИНА Ирина Павловна
Publisher: name: Образование и право
Year: 2020
Subjects: компьютеризация
компьютерные игры
киберспорт
геймер
учебная дисциплина
факультатив
образовательная программа

description: Киберспорт сегодня в России признан одним из видов спорта, по которому регулярно проводятся индивидуальные и групповые соревнования. Летом 2019 г. Институт развития Интернета направил письмо в Комитет Государственной Думы ФС РФ по образованию с предложением ввести киберспорт как факультативную учебную дисциплину в российских общеобразовательных школах. Предложение вызвало неоднозначную реакцию. В статье изложены программа, методология и результаты социологического исследования, проведенного группой преподавателей Уральского государственного аграрного университета в конце 2019 г. Объектом исследования является группа лиц, отобранная методом случайной выборки, в возрасте от 18 лет. Предмет исследования – отношение респондентов к введению учебной дисциплины «Киберспорт» в общеобразовательных школах. В качестве методологии исследования была избрана комплексная исследовательская стратегия, состоящая из количественных и качественных методов социологического исследования: письменного опроса (анкетирования) и групповых интервью.
COSMOSOMAS Observations of the CMB and Galactic Foregrounds at 11 GHz: Evidence for anomalous microwave emission at high Galactic Latitude
Creators: name: Hildebrandt, S. R.
name: Rebolo, R.
name: Rubiño-Martín, J. A.
name: Watson, R. A.
name: Gutiérrez, C. M.
name: Hoyland, R. J.
name: Battistelli, E. S.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We present observations with the new 11 GHz radiometer of the COSMOSOMAS experiment at the Teide Observatory (Tenerife). The sky region between 0 deg <= RA <= 360 deg and 26 deg <= DEC 49 deg (ca. 6500 square degrees) was observed with an angular resolution of 0.9 deg. Two orthogonal independent channels in the receiving system measured total power signals from linear polarizations with a 2 GHz bandwidth. Maps with an average sensitivity of 50 microK per beam have been obtained for each channel. At high Galactic latitude (|b|>30deg) the 11 GHz data are found to contain the expected cosmic microwave background as well as extragalactic radiosources, galactic synchrotron and free-free emission, and a dust-correlated component which is very likely of galactic origin. At the angular scales allowed by the window function of the experiment, the dust-correlated component presents an amplitude ΔT aprox. 9-13 microK while the CMB signal is of order 27 microK. The spectral behaviour of the dust-correlated signal is examined in the light of previous COSMOSOMAS data at 13-17 GHz and WMAP data at 22-94 GHz in the same sky region. We detect a flattening in the spectral index of this signal below 20 GHz which rules out synchrotron radiation as being responsible for the emission. This anomalous dust emission can be described by a combination of free-free emission and spinning dust models with a flux density peaking around 20 GHz.
description: 17 pages, 10 tables, 20 figures. Details on the COSMOSOMAS experiment can be found at http://www.iac.es/project/cmb/cosmosomas/
Theoretical study of early time superradiance for atom clouds and arrays
Creators: name: Robicheaux, F.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Quantum Physics (quant-ph)
subject: Atomic Physics (physics.atom-ph)
subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: We explore conditions for Dicke superradiance in a cloud of atoms by examining the Taylor series expansion of the photon emission rate at $t= 0$. By defining superradiance as an increasing photon emission rate for $t\sim 0$, we have calculated the conditions for superradiance for a variety of cases. We investigate superradiance as defined for photon emission into all angles as well as directional superradiance where the photon emission is only detected in a particular direction. Although all of the examples are for two level atoms that are fully inverted at $t=0$, we also give equations for partially inverted two level atoms and for fully inverted multilevel atoms. We give an algorithm for efficiently evaluating these equations for atom arrays and determine superradiance conditions for large atom number.
ПРЕПОДАВАТЕЛИ ОБРАЗОВАТЕЛЬНЫХ ОРГАНИЗАЦИЙ В ЦИФРОВОЙ РЕАЛЬНОСТИ
Creators: name: ШАБЛОВА Елена Геннадьевна
name: ФИЛЮЩЕНКО Людмила Ивановна
Publisher: name: Образование и право
Year: 2020
Subjects: трудовое законодательство
трудовая функция
профессиональные стандарты
цифровая среда

description: Научно-технический прогресс, современные технологии ставят вопрос об отмирании некоторых профессий, высвобождении работников, замене людей роботами. Проблема занятости и изменений в сфере трудовых отношений актуализируется в связи с широким распространением удаленной работы, ситуацией, в которой вынужденно оказались многие работники в настоящий момент. Меняется традиционное представление о соотношении трудовых прав и обязанностей работника и работодателя, претерпевает изменения трудовая функция работников. Целью настоящей статьи является исследование трудовой функции работников и ее трансформаций в современных условиях. Для достижения цели были поставлены задачи: исследование понятия ”трудовая функция”; изучение практики применения законодательства об изменении трудовой функции; определение перспектив дальнейшего развития трудового законодательства под влиянием цифровых технологий в образовательных организациях.
Dialogo intorno ai "Racconti" di ItaloCalvino
Creators: name: Brigatti, Virna
name: Falcetto, Bruno
Publisher: name: Prassi Ecdotiche della Modernità Letteraria
Year: 2019
Subjects: Italo Calvino; racconti; racconti realistici; opera omnia; Meridiani; Mondadori; opera; indici; filologia delle strutture; editoria

description: Il contributo propone in forma molto fedele, anche sul piano dell’andamento del discorso,
quanto è stato presentato oralmente durante l’incontro tenutosi giovedì 11 aprile 2019 in Biblioteca Ambrosiana a Milano, all’interno del ciclo di “Seminari di «Prassi Ecdotiche della Modernità Letteraria»” dell’anno 2019, dedicato a Stesure, redazioni, revisioni, riscritture: problemi di definizione. Nel riportare quanto è stato detto in quell’occasione, il titolo del contributo è stato modificato rispetto al titolo del seminario (che era Percorsi di riscrittura e revisione tra i racconti di Italo Calvino), per renderlo più coerente con quanto emerso quel giorno nel corso del dialogo.
description: Prassi Ecdotiche della Modernità Letteraria, N. 4/I (2019)
Metapocyrtus striatus subsp. viridistriatus Bollino 2025, new subspecies
Creators: name: Bollino, Maurizio
name: Ersoy, Doğan Erhan
Publisher: name: Zenodo
Year: 2025
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Coleoptera
Curculionidae
Metapocyrtus
Metapocyrtus striatus
Metapocyrtus striatus viridistriatus bollino

description: Metapocyrtus striatus viridistriatus Bollino, new subspecies
(Figure 7A–B; 11A–D)
Holotype (Figure 7A) male: Philippines — Visayas / Tablas I.— Romblon Prov. / near Calatrava / 20–27.III.2023 / Lg. N. Mohagan —coll. Bollino (typed on white card) // HOLOTYPE / Metapocyrtus striatus / viridistriatus / BOLLINO, 2025 (typed on red card) (SMTD).
Paratypes (48 ♂♂, 32 ♀♀): 31♂♂, 16♀♀ Philippines — Visayas / Tablas I.— Romblon Prov. / near Calatrava / 20–27.III.2023 / Lg. N. Mohagan —coll. Bollino; 13♂♂, 4♀♀ Philippines — Visayas / Tablas I.— Romblon Prov. / near Lambang view point / 20–27.III.2023 / Lg. N. Mohagan —coll. Bollino; 5♂♂, 12♀♀ Philippines — Visayas / Tablas I. — Romblon Prov. / Limon Norte—Looc. Romblon / 20–27.III.2023 / Lg. N. Mohagan —coll. Bollino (MBLI). The additional label: “PARATYPE / Metapocyrtus striatus / viridistriatus / BOLLINO, 2025” (typed on red card) was added to all paratypes.
Diagnosis. The new subspecies is clearly distinguished from Metapocyrtus striatus striatus (Figure 7C–D) by the light green color of its scales, which in the nominotypical subspecies are instead ice-white.
Description. Male. Integument black. Body subglabrous, very light green adpressed hairs on dorsal, lateral and ventral part of rostrum, and on forehead. Lateral part of pronotum and elytra with some fine whitish hairs arising from punctures. Lower part with pale adpressed hairs under rostrum, between coxae, on mesosternum and metasternum, and on ventrites. Pronotum with anterior and posterior edges thickened, latter less marked than former; light green round scales on anterior edge, scattered scales on lateral portions, few on disc. Elytra coarsely punctate-striate, with punctures arranged in slightly irregular double rows, and interstriae slightly swollen and smooth; shallow striae scattered with green round scales arranged in lines. Other characters are as in Metapocyrtus striatus striatus, including the form of genitalia and the everted endophallus. (Figure 11A–H).
Chorology. To date, the new subspecies is restricted to Tablas Island, where it appears to be relatively common.
Etymology. The Latin name “ viridistriatus ” means “green-striped” and clearly refers to the diagnostic feature of the new subspecies.
description: Published as part of Bollino, Maurizio & Ersoy, Doğan Erhan, 2025, New Pachyrhynchini (Coleoptera: Curculionidae: Entiminae) from the Visayas, Philippines, pp. 143-162 in Zootaxa 5620 (1) on pages 160-161, DOI: 10.11646/zootaxa.5620.1.6, http://zenodo.org/record/15218981
A New Type of Plasma Wakefield Accelerator Driven by Magnetowaves
Creators: name: Chen, Pisin
name: Chang, Feng-Yin
name: Lin, Guey-Lin
name: Noble, Robert J.
name: Sydora, Richard
Publisher: name: arXiv
Year: 2008
Subjects: subject: Accelerator Physics (physics.acc-ph)
subject: Plasma Physics (physics.plasm-ph)
subject: FOS: Physical sciences

description: We present a new concept for a plasma wakefield accelerator driven by magnetowaves (MPWA). This concept was originally proposed as a viable mechanism for the "cosmic accelerator" that would accelerate cosmic particles to ultra high energies in the astrophysical setting. Unlike the more familiar Plasma Wakefield Accelerator (PWFA) and the Laser Wakefield Accelerator (LWFA) where the drivers, the charged-particle beam and the laser, are independently existing entities, MPWA invokes the high-frequency and high-speed whistler mode as the driver, which is a medium wave that cannot exist outside of the plasma. Aside from the difference in drivers, the underlying mechanism that excites the plasma wakefield via the ponderomotive potential is common. Our computer simulations show that under appropriate conditions, the plasma wakefield maintains very high coherence and can sustain high-gradient acceleration over many plasma wavelengths. We suggest that in addition to its celestial application, the MPWA concept can also be of terrestrial utility. A proof-of-principle experiment on MPWA would benefit both terrestrial and celestial accelerator concepts.
description: revtex4, 4 pages, 6 figures
Paulosawaya Martinez and D'Andretta 1956
Creators: name: Smith, Andrew B. T.
Publisher: name: Zenodo
Year: 2008
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Coleoptera
Melolonthidae
Paulosawaya

description: Synonym. Paulosawaya Martínez and D’Andretta, 1956: 346 (new synonym). Type species
 Paulosawaya ornatissima Martínez and D’Andretta, by original designation.
 Remark. The genus Paulosawaya was originally placed in the tribe Pachydemini by Martínez and D’Andretta (1956). Later it was transferred to the tribe Macrodactylini (Martínez 1975), but was considered incertae sedis by Katovich (2008). When I examined four paratypes of Paulosawaya ornatissima from the HAHC, it was immediately obvious that this species belongs in the genus Clavipalpus. These specimens match the latest definition of the genus Clavipalpus by Katovich (2008). The transfer is here made, placing the generic name Paulosawaya in synonymy with Clavipalpus.
description: Published as part of Smith, Andrew B. T., 2008, South American Melolonthinae (Coleoptera: Scarabaeidae) classification and nomenclature: some problems and solutions, pp. 1-28 in Insecta Mundi 2008 (60) on pages 22-23, DOI: 10.5281/zenodo.5170193
High precision multi-hit time-of-flight measurements at $R^3B$
Creators: name: Plag, R.
name: Gilbert, M.
name: Heil, M.
name: Frühauf, J.
name: Hoffmann, J.
name: Koch, K.
name: Kurz, N.
Publisher: name: GSI Helmholtzzentrum fuer Schwerionenforschung, Darmstadt
Year: 2014
Subjects: Physics

description: GSI Scientific Report 2013 - GSI Report 2014-1
Seeking a solution of the Pioneer Anomaly
Creators: name: Nieto, Michael Martin
name: Anderson, John D.
Publisher: name: arXiv
Year: 2007
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: The 1972 and 1973 launched Pioneer 10 and 11 were the first missions to explore the outer solar system. They achieved stunning breakthroughs in deep-space exploration. But around 1980 an unmodeled force of \sim 8 \times 10^{-8} cm/s^2, directed approximately towards the Sun, appeared in the tracking data. It later was unambiguously verified as not being an artifact. The origin remains unknown (although radiant heat remains a likely cause). Increasing effort has gone into understanding this anomaly. We review the situation and describe programs to resolve the issue.
description: 7 pages, 1 figure, invited talk at the Fourth Meeting on CPT and Lorentz Symmetry, 8-11 Aug. 2007, held at Indiana University
ALP Dark Matter in a Primordial Black Hole Dominated Universe
Creators: name: Bernal, Nicolás
name: Perez-Gonzalez, Yuber F.
name: Xu, Yong
name: Zapata, Óscar
Publisher: name: arXiv
Year: 2021
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: We investigate the phenomenological consequences of axion-like particle (ALP) dark matter with an early matter domination triggered by primordial black holes (PBHs). We focus on light BHs with masses smaller than $\sim 10^9~$g which fully evaporate before Big Bang nucleosynthesis. We numerically solve the coupled Boltzmann equations, carefully taking the greybody factors and BH angular momentum into account. We find that the entropy injection from PBH evaporation dilutes the ALP relic abundance originally produced via the vacuum misalignment mechanism, opening the parameter space with larger scales $f_a$ or, equivalently, smaller ALP-photon couplings $g_{aγ}$, within the reach of future detectors as ABRACADABRA, KLASH, ADMX, and DM-Radio. Moreover, the ALP minicluster masses can be several orders of magnitude larger if the early Universe features an PBH dominated epoch. For the relativistic ALPs produced directly from Hawking radiation, we find that their contribution to the dark radiation is within the sensitivity of next generation CMB experiments. For the sake of completeness, we also revisit the particular case of the QCD axion.
description: 23 pages, 6 figures; V2: references updated; version accepted for publication in PRD
Limit laws for the energy of a charged polymer
Creators: name: Chen, Xia
Publisher: name: arXiv
Year: 2008
Subjects: subject: Probability (math.PR)
subject: FOS: Mathematics

description: In this paper we obtain the central limit theorems, moderate deviations and the laws of the iterated logarithm for the energy \[H_n=\sum_{1\le j
description: Published in at http://dx.doi.org/10.1214/07-AIHP120 the Annales de l'Institut Henri Poincar\'e - Probabilit\'es et Statistiques (http://www.imstat.org/aihp/) by the Institute of Mathematical Statistics (http://www.imstat.org)
Mori-Zwanzig formalism for general relativity: a new approach to the averaging problem
Creators: name: Vrugt, Michael te
name: Hossenfelder, Sabine
name: Wittkowski, Raphael
Publisher: name: arXiv
Year: 2021
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: Cosmology relies on a coarse-grained description of the universe, assumed to be valid on large length scales. However, the nonlinearity of general relativity makes coarse-graining extremely difficult. We here address this problem by extending the Mori-Zwanzig projection operator formalism, a highly successful coarse-graining method from statistical mechanics, towards general relativity. Using the Buchert equations, we derive a new dynamic equation for the Hubble parameter which captures the effects of averaging through a memory function. This gives an empirical prediction for the cosmic jerk.
description: 7 pages, 1 figure
СВОЙСТВА И КЛАССЫ АНГЛОЯЗЫЧНЫХ МНОГОКОМПОНЕНТНЫХ ЭКОНОМИЧЕСКИХ ТЕРМИНОВ
Creators: name: КОНДРАХИНА Наталья Геннадиевна
name: ЮЖАКОВА Нина Евгеньевна
Publisher: name: Образование и право
Year: 2020
Subjects: многокомпонентные термины
перевод
терминологическая лексика

description: Статья посвящена проблеме свойств и классов англоязычных многокомпонентных экономических терминов. Анализируемые многокомпонентные термины наиболее часто актуализируют такие тематические области экономики, как экономика предприятия, банковская экономика, кредитные и финансовые системы. При сопоставлении текстов-оригиналов и их переводов можно отметить, что многокомпонентность является характеристикой экономических терминосистем как в английском, так и в русском языках. Однако многокомпонентность англоязычных терминов более сложная и разветвленная – в них отмечается больше элементов по сравнению с русскими эквивалентами. Русские соответствия, напротив, чтобы не выглядеть громоздко и не отягощать восприятие текста, стремятся к сокращению. Так, зафиксированы англоязычные пятиэлементные и трехэлементные термины, которые были переведены на русский язык двухэлементными соответствиями. Это различие объясняется, прежде всего, разницей в системно-структурной организации английского и русского языков. Адекватный и качественный перевод англоязычных многокомпонентных экономических терминов и качество восприятия иноязычного текста, где они употребляются напрямую, зависят от понимания свойств и классов данных терминов.
Kendall's tau in high-dimensional genomic parsimony
Creators: name: Sen, Pranab K.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Statistics Theory (math.ST)
subject: Methodology (stat.ME)
subject: Machine Learning (stat.ML)
subject: FOS: Mathematics
subject: FOS: Computer and information sciences
subject: 62G10, 62G99 (Primary) 62P99 (Secondary)

description: High-dimensional data models, often with low sample size, abound in many interdisciplinary studies, genomics and large biological systems being most noteworthy. The conventional assumption of multinormality or linearity of regression may not be plausible for such models which are likely to be statistically complex due to a large number of parameters as well as various underlying restraints. As such, parametric approaches may not be very effective. Anything beyond parametrics, albeit, having increased scope and robustness perspectives, may generally be baffled by the low sample size and hence unable to give reasonable margins of errors. Kendall's tau statistic is exploited in this context with emphasis on dimensional rather than sample size asymptotics. The Chen--Stein theorem has been thoroughly appraised in this study. Applications of these findings in some microarray data models are illustrated.
description: Published in at http://dx.doi.org/10.1214/074921708000000183 the IMS Collections (http://www.imstat.org/publications/imscollections.htm) by the Institute of Mathematical Statistics (http://www.imstat.org)
УТРАТА ПРОФЕССИОНАЛЬНОЙ ИДЕНТИЧНОСТИ ПРЕПОДАВАТЕЛЯ ВУЗА
Creators: name: ГУБАРЬ Сергей Алексеевич
Publisher: name: Образование и право
Year: 2020
Subjects: преподаватель вуза
реформирование образования
учебная работа
научная работа
профессиональные деформации
профессиональная идентичность

description: Рассматриваются проблемы, возникающие в работе преподавателя вуза в условиях реформирования системы высшего образования на современном этапе; проблемы осознания им своей роли и места в системе обучения и воспитания специалистов с высшим образованием. Анализируются возможные профессиональные деформации преподавателей как педагога в процессе реализации основных задач преподавательской деятельности: воспитательной, учебной и научной, способные привести к утрате субъективности и профессиональной идентичности.