cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Evolution and Role of Mergers in the BCG-Cluster Alignment. A View from Cosmological Hydro-Simulations
Creators: name: Ragone-Figueroa, Cinthia
name: Granato, Gian Luigi
name: Borgani, Stefano
name: De Propris, Roberto
name: Lambas, Diego Garcia
name: Murante, Giuseppe
name: Rasia, Elena
name: West, Michael
Publisher: name: arXiv
Year: 2020
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: Contradictory results have been reported on the time evolution of the alignment between clusters and their Brightest Cluster Galaxy (BCG). We study this topic by analyzing cosmological hydro-simulations of 24 massive clusters with $M_{200}|_{z=0} \gtrsim 10^{15}\, M_\odot$, plus 5 less massive with $1 \times 10^{14} \lesssim M_{200}|_{z=0} \lesssim 7 \times 10^{14}\, M_\odot$, which have already proven to produce realistic BCG masses. We compute the BCG alignment with both the distribution of cluster galaxies and the dark matter (DM) halo. At redshift $z=0$, the major axes of the simulated BCGs and their host cluster galaxy distributions are aligned on average within 20$^\circ$. The BCG alignment with the DM halo is even tighter. The alignment persists up to $z\lesssim2$ with no evident evolution. This result continues, although with a weaker signal, when considering the projected alignment. The cluster alignment with the surrounding distribution of matter ($3R_{200}$) is already in place at $z\sim4$ with a typical angle of $35^\circ$, before the BCG-Cluster alignment develops. The BCG turns out to be also aligned with the same matter distribution, albeit always to a lesser extent. These results taken together might imply that the BCG-Cluster alignment occurs in an outside-in fashion. Depending on their frequency and geometry, mergers can promote, destroy or weaken the alignments. Clusters that do not experience recent major mergers are typically more relaxed and aligned with their BCG. In turn, accretions closer to the cluster elongation axis tend to improve the alignment as opposed to accretions closer to the cluster minor axis.
description: 10 pages, 8 figures. MNRAS accepted. Comments welcome
Trichotithonus albidus Monne 1990
Creators: name: Monné, Miguel A.
Publisher: name: Zenodo
Year: 2005
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Coleoptera
Cerambycidae
Trichotithonus
Trichotithonus albidus

description: 1. Trichotithonus albidus Monné, 1990
Type locality — Brazil, Bahia: Município de Encruzilhada (Estrada Rio­Bahia, km 965, Motel da Divisa). (MNRJ). Distribution — Brazil (Bahia).
 Trichotithonus albidus Monné, 1990a: 257, fig. 5; Julio et al., 2000: 52 (holotype).
description: Published as part of Monné, Miguel A., 2005, Catalogue of the Cerambycidae (Coleoptera) of the Neotropical Region. Part II. Subfamily Lamiinae, pp. 1-760 in Zootaxa 1023 (1) on pages 1-760, DOI: 10.11646/zootaxa.946.1.1, http://zenodo.org/record/5049553
title: The Application of Object-Oriented Views to an Engineering Environment.
Creators: name: Shao, Zhuang
Publisher: name: The Open University
Year: 1999

description: With the increasing popularity of object-oriented technology, object-oriented database systems are being used in design environments as central repositories. In this thesis, we investigate the role of versioning and the characteristics of design databases in design environments. In an effort to improve the configuration management scheme in a design environment, we also investigate the use of database views as a possible configuration tool.

 We propose a unified version management scheme that facilitates cooperative team work and show that the use of database views provides a powerful configuration management scheme for a design environment.
Holographic Dissipation from the Symplectic Current
Creators: name: Donos, Aristomenis
name: Kailidis, Polydoros
name: Pantelidou, Christiana
Publisher: name: arXiv
Year: 2022
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We develop analytic techniques to construct the leading dissipative terms in a derivative expansion of holographic fluids. Our basic ingredient is the Crnkovic-Witten symplectic current of classical gravity which we use to extract the dissipative transport coefficients of holographic fluids, assuming knowledge of the thermodynamics and the near horizon geometries of the bulk black hole geometries. We apply our techniques to non-conformal neutral fluids to reproduce previous results on the shear viscosity and generalise a known expression for the bulk viscosity.
description: 32 pages,1 figure, Version to appear on JHEP
Recombination Models
Creators: name: Fries, R. J.
Publisher: name: arXiv
Year: 2004
Subjects: subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: We review the current status of recombination and coalescence models that have been successfully applied to describe hadronization in heavy ion collisions at RHIC energies. Basic concepts as well as actual implementations of the idea are discussed. We try to evaluate where we stand in our understanding at the moment and what remains to be done in the future.
description: Plenary Talk at Quark Matter 2004, submitted to J. Phys. G, 8 pages, 3 figures
UVIT Open Cluster Study. II. Detection of extremely low mass white dwarfs and post-mass transfer binaries in M67
Creators: name: Jadhav, Vikrant V.
name: Sindhu, N.
name: Subramaniam, Annapurni
Publisher: name: arXiv
Year: 2019
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: A detailed study of the ultraviolet (UV) bright stars in the old open star cluster, M67 is presented based on the far-UV observations using the {\it Ultra Violet Imaging Telescope} ({\it UVIT}) on {\it ASTROSAT}. The UV and UV-optical colour-magnitude diagrams (CMDs) along with overlaid isochrones are presented for the member stars, which include blue straggler stars (BSSs), triple systems, white dwarfs (WDs) and spectroscopic binaries (SB). The CMDs suggest the presence of excess UV flux in many members, which could be extrinsic or intrinsic to them. We construct multi-wavelength spectral energy distribution (SED) using photometric data from the {\it UVIT, Gaia} DR2, 2MASS and WISE surveys along with optical photometry. We fitted model SEDs to 7 WDs and find 4 of them have mass $>$ 0.5 \(M_\odot\) and cooling age of less than 200 Myr, thus demanding BSS progenitors. SED fits to 23 stars detect extremely low mass (ELM) WD companions to WOCS2007, WOCS6006 and WOCS2002, and a low mass WD to WOCS3001, which suggest these to be post mass transfer (MT) systems. 12 sources with possible WD companion need further confirmation. 9 sources have X-ray and excess UV flux, possibly arising out of stellar activity. This study demonstrates that UV observations are key to detect and characterise the ELM WDs in non-degenerate systems, which are ideal test beds to explore the formation pathways of these peculiar WDs. The increasing detection of post-MT systems among BSSs and main-sequence stars suggests a strong MT pathway and stellar interactions in M67.
description: 29 pages, 13 figures, accepted in Astrophysical Journal
Quantum confinement and edge effects on electronic properties of zigzag green phosphorene nanoribbons
Creators: name: Ma, Chi
name: Ma, Tianxing
name: Peng, Xihong
Publisher: name: arXiv
Year: 2019
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: First principles density-functional theory calculations were performed to investigate quantum confinement and edge effects on the electronic properties of zigzag green phosphorene nanoribbons (ZGPNRs) with edge chemical species including H, OH, F, Cl, O, and S for the ribbons width in the range of 0.5 \~{} 3.7 nm. The ZGPNRs were obtained from the relaxed two-dimensional (2D) green phosphorene monolayer with different cutting strategies and the most energetically favorable ribbon configuration was selected for further exploration of the size and edge effects. It was found that the electronic properties of the ZGPNRs are strongly associated with the ribbon width and edge chemical species. They show either semiconducting or metallic features depending on the edge functionalization species. The ZGPNRs show semiconducting behavior with the edge species of H, OH, F, or Cl (Group \uppercase\expandafter{\romannumeral1}), while exhibit metallic characteristics with pristine or O, S edges (Group \uppercase\expandafter{\romannumeral2}). The conduction band minimum (CBM) and valence band maximum (VBM) of the ZGPNRs with the Group \uppercase\expandafter{\romannumeral1} edge are primarily located at the inner P atoms and the edge P and functionalization atoms have little contribution. However, for the Group \uppercase\expandafter{\romannumeral2} edge, the electronic bands crossing the Fermi level are dominantly contributed by the edge atoms. It was also found that the band gap and work function of the ZGPNRs are tunable by varying ribbon width and edge functionalization species.
description: 5 Figures and 5 Pages
Successful Experience and Poverty Alleviation Model in the Implementation of Precise Poverty Alleviation —— A Case Study of Zhengjia Village in Hubei Province
Creators: name: LI, Jun
name: DENG, Junrong
name: LI, Jun
name: DENG, Junrong
Publisher: name: Unknown
Year: 2018
Subjects: subject: Agribusiness
subject: Precision poverty alleviation, Causes of poverty, Successful experience, Poverty alleviation

description: Based on the actual situation of Zhenjia Village, this paper analyzed the causes of poverty in Zhenjia Village, the successful experience of poverty alleviation under the “four in one” poverty alleviation program, and the seven poverty alleviation models that explore the “one model for one altitude”. Besides, it came up with recommendations for promoting local precision poverty alleviation towards sustainable development and providing reference for poverty alleviation in other poverty-stricken areas.
The shear viscosity of parton matter under anisotropic scatterings
Creators: name: MacKay, Noah M.
name: Lin, Zi-Wei
Publisher: name: arXiv
Year: 2022
Subjects: subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: The shear viscosity $η$ of a quark-gluon plasma in equilibrium can be calculated analytically using multiple methods or numerically using the Green-Kubo relation. It has been realized, which we confirm here, that the Chapman-Enskog method agrees well with the Green-Kubo result for both isotropic and anisotropic two-body scatterings. We then apply the Chapman-Enskog method to study the shear viscosity of the parton matter from a multi-phase transport model. In particular, we study the parton matter in the center cell of central and midcentral Au+Au collisions at $200A$ GeV and Pb+Pb collisions at $2760A$ GeV, which is assumed to be a plasma in thermal equilibrium but partial chemical equilibrium. As a result of using a constant Debye mass or cross section $σ$ for parton scatterings, the $η/s$ ratio increases with time (as the effective temperature decreases), contrary to the trend preferred by Bayesian analysis of the experimental data or pQCD results that use temperature-dependent Debye masses. At $σ=3$ mb that enables the transport model to approximately reproduce the elliptic flow data of the bulk matter, the average $η/s$ of the parton matter in partial equilibrium is found to be very small, between one to two times $1/(4π)$.
description: Added subsection on the Green-Kubo relation to better match published version
Folding and form: Insights from lattice simulations
Creators: name: Faisca, P. F. N.
name: da Gama, M. M. Telo
name: Ball, R. C.
Publisher: name: arXiv
Year: 2003
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: FOS: Physical sciences

description: Monte Carlo simulations of a Miyazawa-Jernigan lattice-polymer model indicate that, depending on the native's structure geometry, the model exhibits two broad classes of folding mechanisms for two-state folders. Folding to native structures of low contact order is driven by contact range and is characterised by progressive accumulation of structure towards the native fold. By contrast, folding to high contact order targets is largely dominated by intermediate stage contacts which are not present in the native fold, yielding a more cooperative folding process.
description: Submitted to Phys.Rev. E
Additional file 2 of Multiple neonicotinoids in children’s cerebro-spinal fluid, plasma, and urine
Creators: name: Laubscher, Bernard
name: Diezi, Manuel
name: Renella, Raffaele
name: Mitchell, Edward A. D.
name: Aebi, Alexandre
name: Mulot, Matthieu
name: Glauser, Gaëtan
Publisher: name: figshare
Year: 2022
Subjects: subject: Biophysics
subject: Biochemistry
subject: Medicine
subject: Microbiology
subject: FOS: Biological sciences
subject: Cell Biology
subject: Biotechnology
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: Ecology
subject: 69999 Biological Sciences not elsewhere classified
subject: Cancer
subject: 110309 Infectious Diseases
subject: FOS: Health sciences

description: Additional file 2: Supplementary Table 2. Validation parameters for the different analytes in the different matrices. IS; internal standard; LOQ limit of quantification; CSF cerebrospinal fluid.
Participation sociale et défis épistémo-pédagogiques dans les contextes éducationnels inclusifs. Revue internationale de communication et de socialisation,1(2), 172-185
Creators: name: Fleuri, Reinaldo Matias
Publisher: name: figshare
Year: 2020
Subjects: Education

description: Le mouvement vers l’inclusion des personnes présentant des déficiences à l’école régulière résulte de luttes historiques des mouvements sociaux revendiquant le droit à la citoyenneté et l’égalité de chances pour tous. Au-delà de simples adaptations circonstancielles, l’inclusion requiert des changements paradigmatiques profonds du système organisationnel pour permettre la participation active de chaque sujet à l’interaction éducative. Ces adaptations doivent aussi toucher le développement de conceptions, de structures relationnelles et de référentiels culturels, afin de rendre compte de la complexité des interactions entre différents sujets, langages, intérêts et cultures. Quant à l’enjeu interculturel, il consiste à développer des dispositifs de formation et des processus institutionnels susceptibles d’intégrer les différences dans une entité unitaire qui ne les annule pas, mais qui active plutôt le potentiel créatif et vital de chaque agent. Le présent article met l’accent sur la discussion des éléments dégagés d’une recherche menée au Brésil en matière d’inclusion à l’école régulière : des questions relatives à la qualification des agents, ainsi que des réponses proposées par rapport aux tensions entre les finalités de l’instruction et celles de socialisation.
The spin periods and magnetic moments of white dwarfs in magnetic cataclysmic variables
Creators: name: Norton, A. J.
name: Wynn, G. A.
name: Somerscales, R. V.
Publisher: name: arXiv
Year: 2004
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We have used a model of magnetic accretion to investigate the rotational equilibria of magnetic cataclysmic variables (mCVs). The results of our numerical simulations demonstrate that there is a range of parameter space in the P_spin / P_orb versus mu_1 plane at which rotational equilibrium occurs. This has allowed us to calculate the theoretical histogram describing the distribution of magnetic CVs as a function of P_spin / P_orb. We show that this agrees with the observed distribution assuming that the number of systems as a function of white dwarf magnetic moment is distributed approximately according to N(mu_1) d mu_1 proportional to 1/mu_1 d mu_1. The rotational equilibria also allow us to infer approximate values for the magnetic moments of all known intermediate polars. We predict that intermediate polars with mu_1 > 5 x 10^33 G cm^3 and P_orb > 3h will evolve into polars, whilst those with mu_1 < 5 x 10^33 G cm^3 and P_orb > 3h will either evolve into low field strength polars which are (presumably) unobservable, and possibly EUV emitters, or, if their fields are buried by high accretion rates, evolve into conventional polars once their magnetic fields re-surface when the mass accretion rate reduces. We speculate that EX Hya-like systems may have low magnetic field strength secondaries and so avoid synchronisation. Finally we note that the equilibria we have investigated correspond to a variety of different types of accretion flow, including disc-like accretion at small P_spin / P_orb values, stream-like accretion at intermediate P_spin / P_orb values, and accretion fed from a ring at the outer edge of the white dwarf Roche lobe at higher P_spin / P_orb values.
description: Accepted for publication in ApJ. Figre 3 included here as a low resolution gif only
X-Shooter survey of disk accretion in Upper Scorpius I. Very high accretion rates at age>5 Myr
Creators: name: Manara, C. F.
name: Natta, A.
name: Rosotti, G. P.
name: Alcala, J. M.
name: Nisini, B.
name: Lodato, G.
name: Testi, L.
name: Pascucci, I.
name: Hillenbrand, L.
name: Carpenter, J.
name: Scholz, A.
name: Fedele, D.
name: Frasca, A.
name: Mulders, G.
name: Rigliaco, E.
name: Scardoni, C.
name: Zari, E.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: Determining the mechanisms that drive the evolution of protoplanetary disks is a necessary step to understand how planets form. Here we measured the mass accretion rate for young stellar objects at age >5 Myr, a critical test for the current models of disk evolution. We present the analysis of the spectra of 36 targets in the ~5-10 Myr old Upper Scorpius region for which disk masses were measured with ALMA. We find that the mass accretion rates in this sample of old but still survived disks are similarly high as those of the younger (<3 Myr old) star-forming regions of Lupus and Cha I, when considering the dependence on stellar and disk mass. In particular, several disks show high mass accretion rates >10^-9 Msun/yr while having low disk masses. Furthermore, the median values of the measured mass accretion rates in the disk mass ranges where our sample is complete at a level ~60-80% are compatible in these three regions. At the same time, the spread of mass accretion rates at any given disk mass is still >0.9 dex even at age>5 Myr. These results are in contrast with simple models of viscous evolution, which would predict that the values of the mass accretion rate diminish with time, and a tighter correlation with disk mass at age>5 Myr. Similarly, simple models of internal photoevaporation cannot reproduce the observed mass accretion rates, while external photoevaporation might explain the low disk masses and high accretion rates. A partial possible solution to the discrepancy with the viscous models is that the gas-to-dust ratio of the disks at >5 Myr is significantly different and higher than the canonical 100, as suggested by some dust and gas disk evolution models. The results shown here require the presence of several inter-playing processes, such as detailed dust evolution, external photoevaporation and possibly MHD winds, to explain the secular evolution of protoplanetary disks.
description: Accepted on Astronomy & Astrophysics. Language edited version
Les systèmes de valeurs reliés à l’identité professionnelle des intervenantes à la petite enfance dans des contextes culturels différents, Revue Internationale de Communication et Socialisation,1(2), 186-198.
Creators: name: Boily, Manon
name: Trudel, Marcel
Publisher: name: figshare
Year: 2020
Subjects: Education

description: Cet article décrit les profils de valeurs des intervenantes à la petite enfance, reliés à la problématique de l’identité professionnelle. L’influence des contextes culturels est examinée à partir des représentations d’intervenantes, relativement à leurs choix de pratiques et de valeurs. En partant de la méthodologie Q, l’analyse factorielle avec matrice inversée a dégagé cinq systèmes de valeurs interculturels correspondant aux représentations des groupes professionnels. Le premier groupe privilégie un rôle d’observation; le second favorise le développement global et l’estime de soi; le troisième valorise le développement psychomoteur de l’enfant; le quatrième valorise la santé, le respect du rythme de l’enfant et son développement intellectuel ; le cinquième favorise l’intervention médiatrice, l’encadrement et la sécurité de l’enfant. Ces résultats mettent en évidence la diversité des systèmes de valeurs associés à l’identité professionnelle des intervenantes provenant de contextes culturels diversifiés.
Unveiling the main sequence of galaxies at $z \geq 5$ with the James Webb Space Telescope: predictions from simulations
Creators: name: D'Silva, Jordan C. J.
name: Lagos, Claudia D. P.
name: Davies, Luke J. M.
name: Lovell, Christopher C.
name: Vijayan, Aswin P.
Publisher: name: arXiv
Year: 2022
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: We use two independent, galaxy formation simulations, FLARES, a cosmological hydrodynamical simulation, and SHARK, a semi-analytic model, to explore how well the James Webb Space Telescope (JWST) will be able to uncover the existence and parameters of the star-forming main sequence (SFS) at $z=5\to10$, i.e. shape, scatter, normalisation. Using two independent simulations allows us to isolate predictions (e.g., stellar mass, star formation rate, SFR, luminosity functions) that are robust to or highly dependent on the implementation of the physics of galaxy formation. Both simulations predict that JWST can observe $\ge 70-90\%$ (for SHARK and FLARES respectively) of galaxies up to $z\sim10$ (down to stellar masses of $\approx 10^{8.3}\,\rm M_{\odot}$ and SFRs of $\approx 10^{0.5}\,\rm M_{\odot}\, yr^{-1}$) in modest integration times and given current proposed survey areas (e.g. the Web COSMOS $0.6\,\rm deg^2$) to accurately constrain the parameters of the SFS. Although both simulations predict qualitatively similar distributions of stellar mass and SFR, there are important quantitative differences, such as the abundance of massive, star-forming galaxies, with FLARES predicting a higher abundance than SHARK; the early onset of quenching as a result of black hole growth in FLARES (at $z\approx 8$), not seen in SHARK until much lower redshifts; and the implementation of synthetic photometry, with FLARES predicting more JWST-detected galaxies ($\sim 90\%$) than SHARK ($\sim 70\%$) at $z=10$. JWST observations will distinguish between these models, leading to a significant improvement upon our understanding of the formation of the very first galaxies.
description: 21 pages, 13 figures including 1 in appendix, accepted to MNRAS
Trichillurges brasiliensis
Creators: name: Monné, Miguel A.
Publisher: name: Zenodo
Year: 2005
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Coleoptera
Cerambycidae
Trichillurges
Trichillurges brasiliensis

description: 2. Trichillurges brasiliensis (Melzer, 1935)
Type locality — Brazil, Rio Grande do Sul: Porto Alegre (Parecy Novo). (MZSP). Distribution — Brazil (São Paulo to Rio Grande do Sul).
 Eutrichillus brasiliensis Melzer, 1935: 197; Zikán & Wygodzinsky, 1948: 53 (type); Buck, 1959: 605 (distr.).
 Eutrichillus? brasiliensis; Gilmour, 1965: 570 (cat.).
 Trichillurges brasiliensis; Martins, 1973: 209; Martins & Monné, 1974a: 19; Monné, 1990a: 274.
 Trichillurges fasciatus Gilmour, 1961a: 362, pl. 1, fig. 5.
Type locality — Brazil, Santa Catarina: Rio Natal. (AMNH).
description: Published as part of Monné, Miguel A., 2005, Catalogue of the Cerambycidae (Coleoptera) of the Neotropical Region. Part II. Subfamily Lamiinae, pp. 1-760 in Zootaxa 1023 (1) on pages 1-760, DOI: 10.11646/zootaxa.946.1.1, http://zenodo.org/record/5049553
Effectif par classe, performance scolaire des élèves et stratégies de gestion des grands groupes au Burkina Faso. Revue internationale de communication et de socialisation,1(2), 152-171
Creators: name: Afsata Pare-Kabore
name: Aïssa Gambre-Idany
Publisher: name: figshare
Year: 2020
Subjects: Education

description: Le Burkina Faso a entrepris une politique d’accès pour tous à l’éducation, afin de permettre au plus grand nombre d’enfants d’entrer à l’école. Cette politique a permis une importante avancée de la scolarisation. Toutefois, un phénomène majeur s’est imposé, celui des grands effectifs dans les salles de classe. En dépit des efforts consentis sur le plan des infrastructures et des ressources humaines, la surcharge des classes n’a pu être évitée. L’alternative qui semble la mieux indiquée pour faire face à cette problématique reste l’adoption de la pédagogie des grands groupes par les différents ordres d’enseignement. Bien qu'il ne semble pas y avoir une liaison positive systématique entre grands effectifs et faiblesse des résultats scolaires, la mise en place de cette mesure devrait contribuer à amoindrir chez les enseignants le fardeau des grands effectifs, puisqu’elle possède des atouts incontestables pour susciter l’intérêt individuel et collectif des élèves, ainsi que pour engendrer de la part des enseignants une réelle participation aux activités d’apprentissage, un des facteurs reconnus en vue d'une amélioration qualitative du système éducatif.
Magnetovibrational coupling in small cantilevers
Creators: name: Kovalev, Alexey A.
name: Bauer, Gerrit E. W.
name: Brataas, Arne
Publisher: name: arXiv
Year: 2003
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: A nano-magnetomechanical system consisting of a cantilever and a thin magnetic film is predicted to display magnetovibrational modes, which should enable applications for sensors and actuators. The {}``polaritonic{}'' modes can be detected by line splittings in ferromagnetic resonance spectra.
description: 8 pages, 3 figures
Additional file 3 of Multiple neonicotinoids in children’s cerebro-spinal fluid, plasma, and urine
Creators: name: Laubscher, Bernard
name: Diezi, Manuel
name: Renella, Raffaele
name: Mitchell, Edward A. D.
name: Aebi, Alexandre
name: Mulot, Matthieu
name: Glauser, Gaëtan
Publisher: name: figshare
Year: 2022
Subjects: subject: Biophysics
subject: Biochemistry
subject: Medicine
subject: Microbiology
subject: FOS: Biological sciences
subject: Cell Biology
subject: Biotechnology
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: Ecology
subject: 69999 Biological Sciences not elsewhere classified
subject: Cancer
subject: 110309 Infectious Diseases
subject: FOS: Health sciences

description: Additional file 3: Supplementary Table 3. Detailed results of neonicotinoids and neonicotinoid metabolites in cerebro-spinal fluid, plasma and urine of 14 children with haematological cancers. CSF, cerebro-spinal fluid; LOD, limit of detection; LOQ, limit of quantification; * Corrected for specific gravity.
The Gaia-ESO Survey: a new approach to chemically characterising young open clusters
Creators: name: Baratella, M.
name: D'Orazi, V.
name: Carraro, G.
name: Desidera, S.
name: Randich, S.
name: Magrini, L.
name: Adibekyan, V.
name: Smiljanic, R.
name: Spina, L.
name: Tsantaki, M.
name: Tautvaisiene, G.
name: Sousa, S. G.
name: Jofré, P.
name: Jiménes-Esteban, F. M.
name: Delgado-Mena, E.
name: Martell, S.
name: Van der Swaelmen, M.
name: Roccatagliata, V.
name: Gilmore, G.
name: Alfaro, E. J.
name: Bayo, A.
name: Bensby, T.
name: Bragaglia, A.
name: Franciosini, E.
name: Gonneau, A.
name: Heiter, U.
name: Hourihane, A.
name: Jeffries, R. D.
name: Koposov, S. E.
name: Morbidelli, L.
name: Prisinzano, L.
name: Sacco, G.
name: Sbordone, L.
name: Worley, C.
name: Zaggia, S.
name: Lewis, J.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: Open clusters (OCs) are recognised as excellent tracers of Galactic thin-disc properties. At variance with intermediate-age and old OCs, for which a significant number of studies is now available, clusters younger than 150 Myr have been mostly overlooked in terms of their chemical composition, with few exceptions. On the other hand, previous investigations seem to indicate an anomalous behaviour of young clusters, which includes slightly sub-solar iron (Fe) abundances and extreme, unexpectedly high barium (Ba) enhancements. In a series of papers, we plan to expand our understanding of this topic and investigate whether these chemical peculiarities are instead related to abundance analysis techniques. We present a new determination of the atmospheric parameters for 23 dwarf stars observed by the Gaia-ESO survey in five young OCs (younger than 150 Myr) and one star-forming region (NGC 2264). We exploit a new method based on titanium (Ti) lines to derive the spectroscopic surface gravity, and most importantly, the microturbulence parameter. A combination of Ti I and Fe I lines is used to obtain effective temperatures. We also infer the abundances of Fe II, Ti II, Na I, Mg I, Al I, Si I, Ca I, Cr I and Ni I. Our findings are in fair agreement with Gaia-ESO iDR5 results for effective temperatures and surface gravities, but suggest that for very young stars, the microturbulence parameter is over-estimated when Fe lines are employed. This affects the derived chemical composition and causes the metal content of very young clusters to be under-estimated. Our clusters display a metallicity [Fe/H] between +0.04 and +0.12; they are not more metal poor than the Sun. Although based on a relatively small sample size, our explorative study suggests that we may not need to call for ad hoc explanations to reconcile the chemical composition of young OCs with Galactic chemical evolution models.
description: 16 pages, 11 figures, accepted by A&A
Repulsion-Sustained Supercurrent and Flux Quantization in Rings of Symmetric Hubbard Clusters
Creators: name: Callegari, Agnese
name: Cini, Michele
name: Perfetto, Enrico
name: Stefanucci, Gianluca
Publisher: name: arXiv
Year: 2003
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: We test the response to a threading magnetic field of rings of 5-site $C_{4v}$-symmetric repulsive Hubbard clusters connected by weak intercell links; each 5-site unit has the topology of a CuO$_{4}$ cluster and a repulsive interaction is included on every site. In a numerical study of the three-unit ring with 8 particles, we take advantage of a novel exact-diagonalization technique which can be generally applied to many-fermion problems. For O-O hopping we find Superconducting Flux Quantization (SFQ), but for purely Cu-Cu links bound pair propagation is hindered by symmetry. The results agree with W=0 pairing theory.
description: 4 pages, 2 figures
AN EVALUATION OF SEASONAL RAILROAD RATES FOR THE OKLAHOMA WHEAT TRANSPORTATION MARKET
Creators: name: Johnson, Marc A.
name: Shouse, James C.
name: Johnson, Marc A.
name: Shouse, James C.
Publisher: name: Unknown
Year: 1978
Subjects: subject: Crop Production/Industries
subject: Marketing
subject: FOS: Economics and business

description: Harvest-period railroad rate surcharges are applied to a model of the --. Oklahoma wheat transportation market to test effects of seasonal rail rates upon railroad, truck and truck-barge modes of transport, shippers, construction and use of country elevator and farm storage facilities, wheat flows through terminal elevator locations and the integrity of the rail transit rate structure.
Archive for Public Education, Innovation, and Entrepreneurship (APEIE)
Creators: name: Lowrance, Chanda Mandisa
Publisher: name: Zenodo
Year: 2025

description: Archive for Public Education, Innovation, and Entrepreneurship (APEIE) is a digital subscription-based archive platform dedicated to providing access to a vast collection of reputable journals, articles, and digital media resources across various disciplines. Our mission is to foster public education, innovation, and entrepreneurship by democratizing access to knowledge and promoting critical thinking and problem-solving skills.
The interplay between superconductivity and non-Fermi liquid at a quantum-critical point in a metal
Creators: name: Chubukov, Andrey V.
name: Abanov, Artem
name: Wang, Yuxuan
name: Wu, Yi-Ming
Publisher: name: arXiv
Year: 2019
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: Near a quantum-critical point, a metal reveals two competing tendencies: destruction of fermionic coherence and attraction in one or more pairing channels. We analyze the competition within Eliashberg theory for a class of quantum-critical models with an effective dynamical electron-electron interaction $V(Ω_m) \propto 1/|Ω_m|^γ$ (the $γ$-model) for $0 < γ<1$. We argue that the two tendencies are comparable in strength, yet the one towards pairing is stronger, and the ground state is a superconductor. We show, however, that there exist two distinct regimes of system behavior below the onset temperature of the pairing $T_p$. In the range $T_{cr} < T < T_p$ fermions remain incoherent and the density of states $N(ω)$ displays "gap filling" behavior in which the position of the maximum in $N(ω)$ is set by temperature rather than the pairing gap. At lower $T < T_{cr}$, fermions acquire coherence, and $N(ω)$ displays a conventional "gap closing" behavior. We argue that the existence of the two regimes comes about because of special behavior of fermions with frequencies $ω= \pm πT$ along the Matsubara axis. Specifically, for these fermions, the component of the self-energy, which competes with the pairing, vanishes in the normal state. We further argue that the crossover at $T \sim T_{cr}$ comes about because Eliashberg equations allow an infinite number of topologically distinct solutions for the onset temperature of the pairing within the same gap symmetry. Only one solution, with the highest $T_p$, actually emerges, but other solutions are generated and modify the form of the gap function at $T \leq T_{cr}$. Finally, we argue that the actual $T_c$ is comparable to $T_{cr}$, while at $T_{cr} < T < T_{p}$ phase fluctuations destroy superconducting long-range order, and the system displays pseudogap behavior.
description: 17 pp, 12 figs. Submitted to Annals of Physics for special issue "Eliashberg theory at 60"
Structural Change in Agricultural Production Firms and Regional Employment
Creators: name: Watt, David L.
name: Watt, David L.
Publisher: name: Unknown
Year: 1978
Subjects: Agricultural and Food Policy

description: Structural Change in Agricultural Production Firms and Regional Employment David L. Watt~ USDA, ESCS, NEAD at Michigan State University Projections of regional employment in 1980 under five scenarios are calculated for a seven county region in south-central Iowa. Scenarios were designed to identify the impacts of: (1) shifts in farm size, (2) the multiplier effect of agricultural employment, (3) structural changes resulting from the increase in farm size, (4) the income effect of absentee ownership, and (5) an industrialtype organzation of farms purchasing most agricultural inputs from outside the region. The employment impacts are calculated using an eight sector input-output model based on employment data.
Theory of spin waves in diluted-magnetic-semiconductor quantum wells
Creators: name: Frustaglia, Diego
name: König, Jürgen
name: MacDonald, Allan H.
Publisher: name: arXiv
Year: 2003
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: We present a theory of collective spin excitations in diluted-magnetic-semiconductor quantum wells in which local magnetic moments are coupled via a quasi-two-dimensional gas of electrons or holes. In the case of a ferromagnetic state with partly spin-polarized electrons, we find that the Goldstone collective mode has anomalous $k^4$ dispersion and that for symmetric quantum wells odd parity modes do not disperse at all. We discuss the gap in the collective excitation spectrum which appears when spin-orbit interactions are included.
description: 14 pages, 7 figures. Submitted to Phys. Rev. B, final version
Statistical properties of extreme soliton collisions
Creators: name: Slunyaev, A. V.
name: Tarasova, T. V.
Publisher: name: arXiv
Year: 2022
Subjects: subject: Pattern Formation and Solitons (nlin.PS)
subject: FOS: Physical sciences

description: Synchronous collisions between a large number of solitons are considered in the context of a statistical description. It is shown that during the interaction of solitons of the same signs the wave field is effectively smoothed out. When the number of solitons increases and the sequence of their amplitudes decay slower, the focused wave becomes even smoother and the statistical moments get frozen for a long time. This quasi-stationary state is characterized by greatly reduced statistical moments and by the density of solitons close to some critical value. This state may be treated as the small-dispersion limit, what makes it possible to analytically estimate all high-order statistical moments. While the focus of the study is made on the Korteweg--de Vries equation and its modified version, a much broader applicability of the results to equations that support soliton-type solutions is discussed.
La relation élève-enseignant : une comparaison en individuel, petits groupes et grands groupes. Revue internationale de communication et de socialisation,1(2), 136-151
Creators: name: Lessard, Anne
name: Nadeau, Sandy
Publisher: name: figshare
Year: 2020
Subjects: Education

description: Le présent article porte sur une étude exploratoire visant à documenter la relation élève-enseignant, en considérant celle-ci à la fois de la perspective de l’enseignant et de l’élève, dans le contexte spécifique d’une école en milieu défavorisé. En définissant la relation comme étant la zone d’interaction pédagogique et socioaffective entre l’enseignant et ses élèves, il s’agit de déterminer les attitudes des enseignants envers les élèves à risque ou non de décrochage scolaire et de les interroger sur les relations qu’ils entretiennent avec ces élèves. À partir des résultats obtenus à l’aide d’une entrevue semi-dirigée menée auprès de 72 enseignants et d’un questionnaire utilisé pour sonder 878 élèves, cette recherche montre que la nature de la relation élève-enseignant varie dans le temps et selon le contexte dans lequel celle-ci se déroule. Les enseignants apprécient les occasions qu’ils ont de travailler individuellement avec l’élève et en petits groupes lors d’activités de remédiation. Certaines périodes vécues en grands groupes (entre 22 et 32 élèves) présentent des difficultés, notamment en raison de la composition du groupe. Les résultats du sondage auprès des élèves confirment les témoignages des enseignants.
U.S. GRAIN STOCKS POLICIES AND IMPLICATIONS FOR TRADE
Creators: name: Morrow, Daniel T.
name: Morrow, Daniel T.
Publisher: name: Unknown
Year: 1978
Subjects: Crop Production/Industries
International Relations/Trade

description: In the few minutes available to me, I will review briefly the recent policy developments on grain reserve stocks and then, in keeping with the focus of this panel, consider the relationship between these reserve stock policies and U.S. trade interests.
Corridors of barchan dunes: stability and size selection
Creators: name: Hersen, P.
name: Andersen, K. H.
name: Elbelrhiti, H.
name: Andreotti, B.
name: Claudin, P.
name: Douady, S.
Publisher: name: arXiv
Year: 2003
Subjects: subject: Condensed Matter (cond-mat)
subject: FOS: Physical sciences

description: Barchans are crescentic dunes propagating on a solid ground. They form dune fields in the shape of elongated corridors in which the size and spacing between dunes are rather well selected. We show that even very realistic models for solitary dunes do not reproduce these corridors. Instead, two instabilities take place. First, barchans receive a sand flux at their back proportional to their width while the sand escapes only from their horns. Large dunes proportionally capture more than they loose sand, while the situation is reversed for small ones: therefore, solitary dunes cannot remain in a steady state. Second, the propagation speed of dunes decreases with the size of the dune: this leads -- through the collision process -- to a coarsening of barchan fields. We show that these phenomena are not specific to the model, but result from general and robust mechanisms. The length scales needed for these instabilities to develop are derived and discussed. They turn out to be much smaller than the dune field length. As a conclusion, there should exist further - yet unknown - mechanisms regulating and selecting the size of dunes.
description: 13 pages, 13 figures. New version resubmitted to Phys. Rev. E. Pictures of better quality available on request
REMODEL/CrD/D.1.3/Quality and Risk Assessment Reports
Creators: name: AYTAÇ, ALP
name: USTUN, Kamuran
Publisher: name: Zenodo
Year: 2025

description: The Quality and Risk Assessment Report is one of the deliverables of the REMODEL projectfunded by the European Union's Horizon Europe research and innovation programme underGrant Agreement No. 101079203. Quality and risk are elements that need to be carefullyassessed to ensure success in projects, as in all organisations. In order to achieve qualityoutputs and maximise their value to all users, it is necessary to design quality proceduresand to identify, assess and develop appropriate responses to project risks. The Quality andRiskAssessment Report provides a comprehensive description of the activities undertaken inthe REMODEL project to ensure quality and manage risk.
Particle beams guided by electromagnetic vortices: New solutions of the Lorentz, Schrödinger, Klein-Gordon, and Dirac equations
Creators: name: Bialynicki-Birula, Iwo
Publisher: name: arXiv
Year: 2004
Subjects: subject: Classical Physics (physics.class-ph)
subject: General Physics (physics.gen-ph)
subject: FOS: Physical sciences

description: It is shown that electromagnetic vortices can act as beam guides for charged particles. The confinement in the transverse directions is due to the rotation of the electric and magnetic fields around the vortex line. Large class of exact solutions describing various types of relativistic beams formed by an electromagnetic wave with a simple vortex line is found both in the classical and in the quantum case. In the second case, the motion in the transverse direction is fully quantized. Particle trajectories trapped by a vortex are very similar to those in a helical undulator.
description: 4 pages, 1 figure
MSTAR -- a fast parallelised algorithmically regularised integrator with minimum spanning tree coordinates
Creators: name: Rantala, Antti
name: Pihajoki, Pauli
name: Mannerkoski, Matias
name: Johansson, Peter H.
name: Naab, Thorsten
Publisher: name: arXiv
Year: 2020
Subjects: subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: We present the novel algorithmically regularised integration method MSTAR for high accuracy ($|ΔE/E| \gtrsim 10^{-14}$) integrations of N-body systems using minimum spanning tree coordinates. The two-fold parallelisation of the $\mathcal{O}(N_\mathrm{part}^2)$ force loops and the substep divisions of the extrapolation method allows for a parallel scaling up to $N_\mathrm{CPU} = 0.2 \times N_\mathrm{part}$. The efficient parallel scaling of MSTAR makes the accurate integration of much larger particle numbers possible compared to the traditional algorithmic regularisation chain (AR-CHAIN) methods, e.g. $N_\mathrm{part} = 5000$ particles on $400$ CPUs for $1$ Gyr in a few weeks of wall-clock time. We present applications of MSTAR on few particle systems, studying the Kozai mechanism and N-body systems like star clusters with up to $N_\mathrm{part} =10^4$ particles. Combined with a tree or a fast multipole based integrator the high performance of MSTAR removes a major computational bottleneck in simulations with regularised subsystems. It will enable the next generation galactic-scale simulations with up to $10^9$ stellar particles (e.g. $m_\star = 100 M_\odot$ for a $M_\star = 10^{11} M_\odot$ galaxy) including accurate collisional dynamics in the vicinity of nuclear supermassive black holes.
description: 20 pages, 16 figures, accepted for publication in MNRAS
Inclusive quarkonium production and the NRQCD factorization approach
Creators: name: Bodwin, Geoffrey T.
Publisher: name: arXiv
Year: 2003
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: I discuss the current status of the comparison between quarkonium-production measurements and the predictions of the NRQCD factorization formalism.
description: 6 pages, RevTeX, 7 Postscript figures, talk presented at the Second International Conference on Flavor Physics, Seoul, South Korea, 6--11 October, 2003, minor corrections
Harmonic oscillator with nonzero minimal uncertainties in both position and momentum in a SUSYQM framework
Creators: name: Quesne, C.
name: Tkachuk, V. M.
Publisher: name: arXiv
Year: 2003
Subjects: subject: Mathematical Physics (math-ph)
subject: High Energy Physics - Theory (hep-th)
subject: Quantum Algebra (math.QA)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences
subject: FOS: Mathematics

description: In the context of a two-parameter $(α, β)$ deformation of the canonical commutation relation leading to nonzero minimal uncertainties in both position and momentum, the harmonic oscillator spectrum and eigenvectors are determined by using techniques of supersymmetric quantum mechanics combined with shape invariance under parameter scaling. The resulting supersymmetric partner Hamiltonians correspond to different masses and frequencies. The exponential spectrum is proved to reduce to a previously found quadratic spectrum whenever one of the parameters $α$, $β$ vanishes, in which case shape invariance under parameter translation occurs. In the special case where $α= β\ne 0$, the oscillator Hamiltonian is shown to coincide with that of the q-deformed oscillator with $q > 1$ and its eigenvectors are therefore $n$-$q$-boson states. In the general case where $0 \ne α\ne β\ne 0$, the eigenvectors are constructed as linear combinations of $n$-$q$-boson states by resorting to a Bargmann representation of the latter and to $q$-differential calculus. They are finally expressed in terms of a $q$-exponential and little $q$-Jacobi polynomials.
description: LaTeX, 24 pages, no figure, minor changes, additional references, final version to be published in JPA
Additional file 1 of Changes in glycemic variability, gastric emptying and vascular endothelial function after switching from twice-daily to once-weekly exenatide in patients with type 2 diabetes: a subpopulation analysis of the twin-exenatide study
Creators: name: Inaishi, Jun
name: Saisho, Yoshifumi
name: Watanabe, Yuusuke
name: Tsuchiya, Tami
name: Sasaki, Hironobu
name: Masaoka, Tatsuhiro
name: Itoh, Hiroshi
Publisher: name: figshare
Year: 2022
Subjects: subject: Biochemistry
subject: Medicine
subject: Physiology
subject: FOS: Biological sciences
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: 69999 Biological Sciences not elsewhere classified
subject: Cancer
subject: 110309 Infectious Diseases
subject: FOS: Health sciences
subject: 60506 Virology
subject: Computational Biology

description: Additional file 1.