cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
The Fermi-Pasta-Ulam problem and its underlying integrable dynamics: an approach through Lyapunov Exponents
Creators: name: Benettin, G.
name: Pasquali, S.
name: Ponno, A.
Publisher: name: arXiv
Year: 2018
Subjects: subject: Dynamical Systems (math.DS)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Mathematics
subject: FOS: Physical sciences

description: FPU models, in dimension one, are perturbations either of the linear model or of the Toda model; perturbations of the linear model include the usual $β$-model, perturbations of Toda include the usual $α+β$ model. In this paper we explore and compare two families, or hierarchies, of FPU models, closer and closer to either the linear or the Toda model, by computing numerically, for each model, the maximal Lyapunov exponent $χ$. We study the asymptotics of $χ$ for large $N$ (the number of particles) and small $ε$ (the specific energy $E/N$), and find, for all models, asymptotic power laws $χ\simeq Cε^a$, $C$ and $a$ depending on the model. The asymptotics turns out to be, in general, rather slow, and producing accurate results requires a great computational effort. We also revisit and extend the analytic computation of $χ$ introduced by Casetti, Livi and Pettini, originally formulated for the $β$-model. With great evidence the theory extends successfully to all models of the linear hierarchy, but not to models close to Toda.
Drop impact dynamics on slippery liquid-infused porous surfaces: influence of oil thickness
Creators: name: Muschi, M.
name: Brudieu, B.
name: Teisseire, J.
name: Sauret, A.
Publisher: name: arXiv
Year: 2018
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: FOS: Physical sciences

description: Slippery liquid-infused porous surfaces (SLIPS) are porous nanostructures impregnated with a low surface tension lubricant. They have recently shown great promise in various applications that require non-wettable superhydrophobic surfaces. In this paper, we investigate experimentally the influence of the oil thickness on the wetting properties and drop impact dynamics of new SLIPS. By tuning the thickness of the oil layer deposited through spin-coating, we show that a sufficiently thick layer of oil is necessary to avoid dewetting spots on the porous nanostructure and thus increasing the homogeneity of the liquid distribution. Drop impact on these surfaces is investigated with a particular emphasis on the spreading and rebound dynamics when varying the oil thickness and the Weber number.
Scandium: A key element for understanding Am stars
Creators: name: LeBlanc, F.
name: Alecian, G.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: {\rm Context.} Atomic diffusion is believed to cause the abundance anomalies observed in AmFm stars. However, the detailed process has still not been well-established. For instance, two possible scenarios for the diffusion theory are presently envisaged. They differ mainly by the depth from which the abundance anomalies emanate. The first scenario predicts that the abundances are modified in the superficial regions of the star, just below the hydrogen convection zone. The second scenario predicts that a much deeper extension of the mixing zone exists due to the convection caused by Fe accumulation in regions below the hydrogen convection zone. {\rm Aims.} We calculate much more accurate radiative accelerations of Sc than previously, to better understand the observed abundance anomalies of this element. We believe that it is a key element to use as a diagnostic tool for understanding AmFm stars. {\rmMethods.} The method employed to obtain these radiative accelerations is based on an interpolation from the parameters of the so-called SVP parametric method. {\rm Results.} The radiative accelerations, shown here in a typical Am stellar model, are discussed in light of the observed anomalies of Ca and Sc. Our results suggest that the deeper mixing scenario is not entirely satisfactory: the mixing zone should be deeper than what is predicted by recent models to account for observed Sc underabundances. Our results seem more compatible with the scenario where the abundances anomalies are created in the superficial regions. However, only detailed evolutionary modelling with mass loss and diffusion of all important species, including Ca and Sc, with accurate radiative accelerations, will be able to give more insight into where the source of these anomalies occur in AmFm stars.
description: 6 pages, 3 figures, accepted for publication in A&A
Impact of Dust Source Patchiness on the Existence of a Constant Dust Flux Layer During Aeolian Erosion Events
Creators: name: Dupont, S.
name: Klose, M.
name: Irvine, M. R.
name: González-Flórez, C.
name: Alastuey, A.
name: Bonnefond, J.-M.
name: Dagsson-Waldhauserova, P.
name: Gonzalez-Romero, A.
name: Hussein, T.
name: Schepanski, Kerstin
Publisher: name: Freie Universität Berlin
Year: 2024
Subjects: subject: soil wind erosion
subject: constant flux layer
subject: dust flux
subject: size distribution
subject: 500 Naturwissenschaften und Mathematik::550 Geowissenschaften, Geologie::551 Geologie, Hydrologie, Meteorologie

description: Dust emission fluxes during wind soil erosion are usually estimated using a dust concentration vertical gradient, by assuming a constant dust flux layer between the surface and the dust measurement levels. Here, we investigate the existence of this layer during erosion events recorded in Iceland and Jordan. Size-resolved dust fluxes were estimated at three levels between 2 and 4 m using the eddy-covariance method. Dust fluxes were found mainly constant only between the two upper levels in Iceland, the lower dust flux being often stronger and richer in coarse particles, while dust fluxes in Jordan were nearly constant across all levels. The wind dynamics could not explain the absence of a constant dust flux layer in Iceland. We show that the presence of stationary dust source patches in Iceland, related to surface humidity, created a non-uniform dust layer near the surface, named dust roughness sublayer (DRSL), where individual plumes behind each patch interact but do not fully mix. The lowest dust measurement level was probably located within this sublayer while the upper ones were located above, such that there the emitted dust became spatially well-mixed. This explains near the surface in Iceland, the more intermittent dust concentration, its low correlation with the dust concentrations above, and the richer dust flux in coarse particles due to their lower deposition contribution. Our findings highlight the importance of estimating dust fluxes above a dust blending height whose characteristics depend on the dust source patchiness caused by surface humidity or the presence of sparse non-erosive elements.
Constructing Spatial Concepts from Universal Primitives
Creators: name: Xu, Yang
name: Kemp, Charles
Publisher: name: Carnegie Mellon University
Year: 2010
Subjects: subject: 170199 Psychology not elsewhere classified
subject: FOS: Psychology

description: Spatial terms such as on and in are found in every language, and psychologists have suggested that the meanings of these terms may be constructed from a universal set of spatial primitives. We develop a computational version of this idea and explore whether the primitives typically proposed are sufficient to account for the meanings of spatial terms across language s. We compare a model where spatial terms correspond directly to primitives with models that represent spatial terms as discrete or weighted combinations of primitives. Our results suggest that combinations play an critical role, and we find limited evidence for weighted combinations
Dielectric Screening inside Carbon Nanotubes
Creators: name: Gordeev, Georgy
name: Wasserroth, Sören
name: Li, Han
name: Jorio, Ado
name: Flavel, Benjamin S.
name: Reich, Stephanie
Publisher: name: Freie Universität Berlin
Year: 2024
Subjects: subject: Carbon nanotubes
subject: Electrical properties
subject: Energy
subject: Excitons
subject: Insulators
subject: 500 Naturwissenschaften und Mathematik::530 Physik::530 Physik

description: Dielectric screening plays a vital role in determining physical properties at the nanoscale and affects our ability to detect and characterize nanomaterials using optical techniques. We study how dielectric screening changes electromagnetic fields and many-body effects in nanostructures encapsulated inside carbon nanotubes. First, we show that metallic outer walls reduce the scattering intensity of the inner tube by 2 orders of magnitude compared to that of air-suspended inner tubes, in line with our local field calculations. Second, we find that the dielectric shift of the optical transition energies in the inner walls is greater when the outer tube is metallic than when it is semiconducting. The magnitude of the shift suggests that the excitons in small-diameter inner metallic tubes are thermally dissociated at room temperature if the outer tube is also metallic, and in essence, we observe band-to-band transitions in thin metallic double-walled nanotubes.
title: ADCO, Cart. 186 (11 H 71), f. 0456v
Creators: name: de la Côte d'Or, Archives départementales
name: Petot, Frédéric
name: Archives Départementales De La Côte-D'Or
name: Petot, Frédérique
name: Projet CBMA
name: CBMA/CG21/F.PETOT/2012
Publisher: name: NAKALA - https://nakala.fr (Huma-Num - CNRS)
publisherIdentifier: https://ror.org/04ces3204
publisherIdentifierScheme: ROR
Year: 2020
Subjects: subject: cartulaire
subject: LaMOP
subject: Laboratoire de Médiévistique Occidentale de Paris
subject: Corpus Burgundiae Medii Aevi
subject: Chartes de la Bourgogne du Moyen Âge

description: Cartulaire général de Cîteaux, dit de Jean de Cirey, t. II (XVe siècle), tome II, Archives départementales de la Côte-d'Or, C
art. 186 (11 H 71). Numérisation en mode image.
description: Relation: http://www.cbma-project.eu/
description: Bibliographic citation: Cartulaire général de Cîteaux, dit de Jean de Cirey, t. II (XVe siècle), tome II, Archives départementales de la
 Côte-d'Or, Cart. 186 (11 H 71), f. 0456v, in Projet CBMA - Corpus Burgundiae Medii Aevi [Ressource en ligne], https://manuscrits.cbma-
project.eu/
description: Provenance: https://www.geonames.org/3024876
description: Provenance: http://www.idref.fr/030974844/id
description: Provenance: https://catalogue.bnf.fr/ark:/12148/cb12228351v
description: Provenance: abbaye de Cîteaux
description: Provenance: http://www.wikidata.org/entity/Q843261
Discovery of two warm mini-Neptunes with contrasting densities orbiting the young K3V star TOI-815
Creators: name: Psaridi, Angelica
name: Osborn, Hugh
name: Bouchy, François
name: Lendl, Monika
name: Parc, Léna
name: Billot, Nicolas
name: Broeg, Christopher
name: Sousa, Sérgio G.
name: Adibekyan, Vardan
name: Rauer, Heike
Publisher: name: Freie Universität Berlin
Year: 2024
Subjects: subject: techniques: photometric
subject: techniques: radial velocities
subject: planets and satellites: composition
subject: planets and satellites: detection
subject: planets and satellites: formation
subject: stars: individual: TOI-815
subject: 500 Naturwissenschaften und Mathematik::520 Astronomie::520 Astronomie und zugeordnete Wissenschaften

description: We present the discovery and characterization of two warm mini-Neptunes transiting the K3V star TOI-815 in a K–M binary system. Analysis of its spectra and rotation period reveal the star to be young, with an age of 200−200+400 Myr. TOI-8l5b has a 11.2-day period and a radius of 2.94 ± 0.05 R⊕ with transits observed by TESS, CHEOPS, ASTEP, and LCOGT. The outer planet, TOI-8l5c, has a radius of 2.62 ± 0.10 R⊕, based on observations of three nonconsecutive transits with TESS; targeted CHEOPS photometry and radial velocity follow-up with ESPRESSO were required to confirm the 35-day period. ESPRESSO confirmed the planetary nature of both planets and measured masses of 7.6 ± 1.5 M⊕ (ρP = 1.64−0.31+0.33 g cm−3) and 23.5 ± 2.4 M⊕ (ρP = 7.2−1.0+1.1 g cm−3), respectively. Thus, the planets have very different masses, which is unusual for compact multi-planet systems. Moreover, our statistical analysis of mini-Neptunes orbiting FGK stars suggests that weakly irradiated planets tend to have higher bulk densities compared to those undergoing strong irradiation. This could be ascribed to their cooler atmospheres, which are more compressed and denser. Internal structure modeling of TOI-815b suggests it likely has a H-He atmosphere that constitutes a few percent of the total planet mass, or higher if the planet is assumed to have no water. In contrast, the measured mass and radius of TOI-815c can be explained without invoking any atmosphere, challenging planetary formation theories. Finally, we infer from our measurements that the star is viewed close to pole-on, which implies a spin-orbit misalignment at the 3σ level. This emphasizes the peculiarity of the system’s orbital architecture, and probably hints at an eventful dynamical history.
Ptinus (Ptinus) pilosus P. W. J. M ¸ ller 1821
Creators: name: Zahradník, Petr
name: Demetriou, Jakovos
Publisher: name: Zenodo
Year: 2023
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Coleoptera
Ptinidae
Ptinus

description: Ptinus (Ptinus) pilosus P. W. J. M̧ller, 1821
= intermedius Boieldieu, 1856
Baudi di Selve 1874: 326; Pic 1912a: 30; Georghiou 1977: 70; Borowski 2007: 337; Zahradník 2016b: 117. Distribution. P: AB AG AL AR AU BH BU CR CY CZ FI FR GB GE GG GR HU IT LA MC MD NL NR PL RO RU SK SL SP SV SY SZ TR UK YU. Europe (Borowski 2007; Zahradník 2016b).
description: Published as part of Zahradník, Petr & Demetriou, Jakovos, 2023, A review of the Ptinidae (Coleoptera: Bostrichoidea) of Cyprus, including new faunistic records and the description of a new species, pp. 243-265 in Zootaxa 5306 (2) on page 257, DOI: 10.11646/zootaxa.5306.2.5, http://zenodo.org/record/8061315
Renormalizable SU(5) Completions of a Zee-type Neutrino Mass Model
Creators: name: Kumericki, Kresimir
name: Mede, Timon
name: Picek, Ivica
Publisher: name: arXiv
Year: 2017
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We explore the potential of a selected model of radiative neutrino masses to be implemented in a renormalizable SU(5) unification framework. The Zee-type model under consideration uncovers the SU(5) representations in which the new fields are embedded and which may contain also other light states leading to the unification of gauge couplings. We perform an exhaustive search which reveals specific patterns of new states and demonstrate that such patterns are consistent with a general choice of relevant scalar potential. It turns out that all of the specific scenarios which lead to successful unification include the colored scalars testable at the LHC.
description: LaTeX, 31 pages
Gravitational perturbation of the BTZ black hole induced by test particles and weak cosmic censorship in AdS spacetime
Creators: name: Rocha, Jorge V.
name: Cardoso, Vitor
Publisher: name: arXiv
Year: 2011
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We analyze the gravitational perturbations induced by particles falling into a three dimensional, asymptotically AdS black hole geometry. More specifically, we solve the linearized perturbation equations obtained from the geodesic motion of a ring-like distribution of test particles in the BTZ background. This setup ensures that the U(1) symmetry of the background is preserved. The non-asymptotic flatness of the background raises difficulties in attributing the significance of energy and angular momentum to the conserved quantities of the test particles. This issue is well known but, to the best of our knowledge, has never been addressed in the literature. We confirm that the naive expressions for energy and angular momentum are the correct definitions. Finally, we put an asymptotically AdS version of the weak cosmic censorship to a test: by attempting to overspin the BTZ black hole with test particles it is found that the black hole cannot be spun-up past its extremal limit.
description: 6 pages, no figures; v2: minor corrections and reference added to match published version
Regional temperature response to different forest development stages in Fennoscandia explored with a regional climate model
Creators: name: Huang, Bo
name: Li, Yan
name: Zhang, Xia
name: Tan, Chunping
name: Hu, Xiangping
name: Cherubini, Francesco
Publisher: name: Freie Universität Berlin
Year: 2024
Subjects: subject: Forest management
subject: Regional climate model
subject: Land cover change
subject: Climate change
subject: Temperature decomposition
subject: 500 Naturwissenschaften und Mathematik::550 Geowissenschaften, Geologie::551 Geologie, Hydrologie, Meteorologie

description: Several studies investigated the regional temperature effects of afforestation or deforestation, but the impacts of different forest development stages or alternative forest management received limited attention. This is mainly due to challenges in representing area-limited forest dynamics in low-resolution climate models and the need for accurate forest parameters. This study investigates the impact of alternative forest development stages and composition on regional climate in Fennoscandia using a coupled regional climate model. By incorporating realistic and high-resolution forest maps, our modelling framework reduces biases in estimating surface temperature compared to default model runs. If today's forest composition of tree species is left to achieve a mature state (a proxy for the absence of harvesting), an annual mean reduction in 2 m air temperature is estimated, with a cooling peak in summer of -0.53 ± 0.20 °C (mean ± standard deviation) mainly induced by increased cloud cover. Conversely, undeveloped forests (a proxy for increased harvest) induce a contrasting seasonal response: a summer warming of 0.53 ± 0.15 °C (mainly caused by higher sensible heat fluxes), and a weak winter cooling of -0.14 ± 0.24 °C (mainly caused by a higher surface albedo). A transition from evergreen to deciduous forests shows a summer average cooling of -0.57 ± 0.28 °C, mainly attributed to changes in surface albedo. These temperature effects are equivalent to a relatively large fraction of the expected warming by 2050 in Fennoscandia (from 16 % to 70 %, depending on the specific scenario and season). Some modelling outputs appear inconsistent with observations and past modelling studies, such as the cooling effects in winter of more developed forests. Our results provide new insights into the complex relationships between forest dynamics and regional temperature, but modelling improvements are still needed to achieve a robust understanding of the regional climate effects of forest management.
INTEGRAL observations of PSR J1811-1925 and its associated Pulsar Wind Nebula
Creators: name: Dean, A. J.
name: De Rosa, A.
name: McBride, V. A.
name: Landi, R.
name: Hill, A. B.
name: Bassani, L.
name: Bazzano, A.
name: Bird, A. J.
name: Ubertini, P.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We present spectral measurements made in the soft (20-100 keV) gamma-ray band of the region containing the composite supernova remnant G11.2-0.3 and its associated pulsar PSR J1811-1925. Analysis of INTEGRAL/IBIS data allows characterisation of the system above 10 keV. The IBIS spectrum is best fitted by a power law having photon index of 1.8^{+0.4}_{-0.3} and a 20-100 keV flux of 1.5E{-11} erg/cm^2/s. Analysis of archival Chandra data over different energy bands rules out the supernova shell as the site of the soft gamma-ray emission while broad band (1-200 keV) spectral analysis strongly indicates that the INTEGRAL/IBIS photons originate in the central zone of the system which contains both the pulsar and its nebula. The composite X-ray and soft gamma-ray spectrum indicates that the pulsar provides around half of the emission seen in the soft gamma-ray domain; its spectrum is hard with no sign of a cut off up to at least 80 keV. The other half of the emission above 10 keV comes from the PWN; with a power law slope of 1.7 its spectrum is softer than that of the pulsar. From the IBIS/ISGRI mosaics we are able to derive 2 sigma upper limits for the 20-100 keV flux from the location of the nearby TeV source HESS J1809-193 to be 4.8E{-12} erg/cm^2/s. We have also examined the likelihood of an association between PSR J1811-1925 and HESS J1809-193. Although PSR J1811-1925 is the most energetic pulsar in the region, the only one detected above 10 keV and thus a possible source of energy to fuel the TeV fluxes, there is no morphological evidence to support this pairing, making it an unlikely counterpart.
description: 6 pages, 2 figures, accepted for publication in MNRAS
Ptinus (Ptinus) Linnaeus 1867
Creators: name: Zahradník, Petr
name: Demetriou, Jakovos
Publisher: name: Zenodo
Year: 2023
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Coleoptera
Ptinidae
Ptinus

description: Ptinus (Ptinus) tarsalis (Reitter in Brenske & Reitter, 1884)
Borowski 2007: 337; Zahradník 2016a: 178; Zahradník 2016b: 118.
Distribution. P: CY GR IT. Very sporadic in the Mediterranean (Borowski 2007).
description: Published as part of Zahradník, Petr & Demetriou, Jakovos, 2023, A review of the Ptinidae (Coleoptera: Bostrichoidea) of Cyprus, including new faunistic records and the description of a new species, pp. 243-265 in Zootaxa 5306 (2) on page 257, DOI: 10.11646/zootaxa.5306.2.5, http://zenodo.org/record/8061315
Scaling Laws and Warning Signs for Bifurcations of SPDEs
Creators: name: Kuehn, Christian
name: Romano, Francesco
Publisher: name: arXiv
Year: 2018
Subjects: subject: Dynamical Systems (math.DS)
subject: Probability (math.PR)
subject: Pattern Formation and Solitons (nlin.PS)
subject: FOS: Mathematics
subject: FOS: Physical sciences

description: Critical transitions (or tipping points) are drastic sudden changes observed in many dynamical systems. Large classes of critical transitions are associated to systems, which drift slowly towards a bifurcation point. In the context of stochastic ordinary differential equations (SODEs), there are results on growth of variance and autocorrelation before a transition, which can be used as possible warning signs in applications. A similar theory has recently been developed in the simplest setting also for stochastic partial differential equations (SPDEs) for self-adjoint operators in the drift term. This setting leads to real discrete spectrum and growth of the covariance operator via a certain scaling law. In this paper, we develop this theory substantially further. We cover the cases of complex eigenvalues, degenerate eigenvalues as well as continuous spectrum. This provides a fairly comprehensive theory for most practical applications of warning signs for SPDE bifurcations.
Additional file 1 of Adiposity reduces the risk of osteoporosis in Chinese rural population: the Henan rural cohort study
Creators: name: Tian, Huiling
name: Pan, Jun
name: Qiao, Dou
name: Dong, Xiaokang
name: Li, Ruiying
name: Wang, Yikang
name: Tu, Runqi
name: Abdulai, Tanko
name: Liu, Xiaotian
name: Hou, Jian
name: Zhang, Gongyuan
name: Wang, Chongjian
Publisher: name: figshare
Year: 2020
Subjects: subject: Space Science
subject: Medicine
subject: Cell Biology
subject: Physiology
subject: FOS: Biological sciences
subject: Sociology
subject: FOS: Sociology
subject: Biological Sciences not elsewhere classified
subject: Computational Biology

description: Additional file 1: Table S1. Pairwise correlations between the adiposity indices. Table S2. Adjusted estimates for BMD per SD increase of the adiposity indices after removed. Table S3. Adjusted OR high osteoporosis risk associated with a SD increase of the adiposity indices after excluding medium osteoporosis risk patients. Table S4. Odd ratios for osteoporosis with a SD increase of the adiposity indices.
Conscious awareness of methodological choices: A reply to Milberg and McGlinchey
Creators: name: Behrmann, Marlene
name: Shomstein, Sarah
name: Kimchi, Ruth
Publisher: name: Carnegie Mellon University
Year: 2010
Subjects: subject: 170199 Psychology not elsewhere classified
subject: FOS: Psychology

description: Milberg and McGlinchey (2010) claim that the conclusions we reach in “Perceptual Grouping Operates Independently of Attentional Selection: Evidence From Hemispatial Neglect” are unwarranted. Specifically, it is asserted that insufficient methodological control was exerted over the attentional status of the patients and that partial attention to the contralesional field could have resulted in the congruency effects we observe. Although we agree with their methodological cautions in general, we argue that our investigation is, in fact, methodologically sound. In particular, we reiterate and highlight that our investigation is unprecedented in the characterization of a patient sample with multiple clinical, psychophysical, and experimental measures; in our use of a stringent, rigidly controlled paradigm specifically designed for investigating perceptual grouping without awareness; in our modification of the experimental procedure to make it even more stringent; and in our specific methodological choices for comparison/control conditions within this experimental paradigm. We also demonstrate that partial attention to the contralesional left cannot support the robust congruency effects we observe. In light of this, we remain confident of our interpretation of our findings and suggest that perceptual grouping can indeed operate in the absence of attention.
Is the 2MASS clustering dipole convergent?
Creators: name: Bilicki, Maciej
name: Chodorowski, Michał
name: Jarrett, Thomas
name: Mamon, Gary A.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: There is a long-standing controversy about the convergence of the dipole moment of the galaxy angular distribution (the so-called clustering dipole). We study the growth of the clustering dipole of galaxies as a function of the limiting flux of the sample from the Two Micron All Sky Survey (2MASS). Contrary to some earlier claims, we find that the dipole does not converge before the completeness limit of the 2MASS Extended Source Catalog, i.e. up to 13.5 mag in the near-infrared K_s band (equivalent to an effective distance of 300 Mpc/h). We compare the observed growth of the dipole with the theoretically expected, conditional one (i.e., given the velocity of the Local Group relative to the CMB), for the LambdaCDM power spectrum and cosmological parameters constrained by WMAP. The observed growth turns out to be within 1-sigma confidence level of its theoretical counterpart once the proper observational window of the 2MASS flux-limited catalog is included. For a contrast, if the adopted window is a top-hat, then the predicted dipole grows significantly faster and converges to its final value for a distance of about 300 Mpc/h. By comparing the observational windows, we show that for a given flux limit and a corresponding distance limit, the 2MASS flux-weighted window passes less large-scale signal than the top-hat one. We conclude that the growth of the 2MASS dipole for effective distances greater than 200 Mpc/h is only apparent. On the other hand, for a distance of 80 Mpc/h (mean depth of the 2MASS Redshift Survey) and the LambdaCDM power spectrum, the true dipole is expected to reach only ~80% of its final value. Eventually, since for the window function of 2MASS the predicted growth is consistent with the observed one, we can compare the two to evaluate beta = (Omega_m)^0.55 / b. The result is beta = 0.38+-0.04, which leads to an estimate of the density parameter Omega_m = 0.20+-0.08.
description: Final version accepted to the Astrophysical Journal
Ptinus (Tectoptinus) exulans Erichson 1842
Creators: name: Zahradník, Petr
name: Demetriou, Jakovos
Publisher: name: Zenodo
Year: 2023
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Coleoptera
Ptinidae
Ptinus
Ptinus exulans

description: Ptinus (Tectoptinus) exulans Erichson, 1842
Borowski 2007: 337; Hagstrum & Subramanyam 2009: 153; Zahradník 2016b: 118.
Distribution. P i: AG AU BH CH CR CY CZ DE EG FI FR GB GE GR IT MO NL NP RU SP SV SY UK A: AS. Cosmopolitan (Borowski 2007) but Hagstrum & Subramanyam (2009) mention the species only inform the Palearctic and Australian Regions.
Alien status. Alien to Cyprus, originally an Australian species (Denux & Zagatti 2010).
description: Published as part of Zahradník, Petr & Demetriou, Jakovos, 2023, A review of the Ptinidae (Coleoptera: Bostrichoidea) of Cyprus, including new faunistic records and the description of a new species, pp. 243-265 in Zootaxa 5306 (2) on pages 257-258, DOI: 10.11646/zootaxa.5306.2.5, http://zenodo.org/record/8061315
Survival and complete convergence for a spatial branching system with local regulation
Creators: name: Birkner, Matthias
name: Depperschmidt, Andrej
Publisher: name: arXiv
Year: 2007
Subjects: subject: Probability (math.PR)
subject: FOS: Mathematics
subject: 60K35 (Primary) 92D40 (Secondary)

description: We study a discrete time spatial branching system on $\mathbb{Z}^d$ with logistic-type local regulation at each deme depending on a weighted average of the population in neighboring demes. We show that the system survives for all time with positive probability if the competition term is small enough. For a restricted set of parameter values, we also obtain uniqueness of the nontrivial equilibrium and complete convergence, as well as long-term coexistence in a related two-type model. Along the way we classify the equilibria and their domain of attraction for the corresponding deterministic coupled map lattice on $\mathbb{Z}^d$.
description: Published in at http://dx.doi.org/10.1214/105051607000000221 the Annals of Applied Probability (http://www.imstat.org/aap/) by the Institute of Mathematical Statistics (http://www.imstat.org)
Connectionist modeling of developmental changes in infancy: approaches, challenges, and contributions.
Creators: name: Yevdokiya  Yermolayeva
name: Rakison, David
Publisher: name: Carnegie Mellon University
Year: 2014
Subjects: subject: 170199 Psychology not elsewhere classified
subject: FOS: Psychology

description: Connectionist models have been applied to many phenomena in infant development including perseveration, language learning, categorization, and causal perception. In this article, we discuss the benefits of connectionist networks for the advancement of theories of early development. In particular, connectionist models contribute novel testable predictions, instantiate the theorized mechanism of change, and create a unifying framework for understanding infant learning and development. We relate these benefits to the 2 primary approaches used in connectionist models of infant development. The first approach employs changes in neural processing as the basis for developmental changes, and the second employs changes in infants' experiences. The review sheds light on the unique hurdles faced by each approach as well as the challenges and solutions related to both, particularly with respect to the identification of critical model components, parameter specification, availability of empirical data, and model comparison. Finally, we discuss the future of modeling work as it relates to the study of development. We propose that connectionist networks stand to make a powerful contribution to the generation and revision of theories of early child development. Furthermore, insights from connectionist models of early development can improve the understanding of developmental changes throughout the life span.
Dynamic Homotopy and Landscape Dynamical Set Topology in Quantum Control
Creators: name: Dominy, Jason
name: Rabitz, Herschel
Publisher: name: arXiv
Year: 2011
Subjects: subject: Quantum Physics (quant-ph)
subject: Systems and Control (eess.SY)
subject: Optimization and Control (math.OC)
subject: FOS: Physical sciences
subject: FOS: Electrical engineering, electronic engineering, information engineering
subject: FOS: Mathematics
subject: 81Q93, 55P05, 55P10

description: We examine the topology of the subset of controls taking a given initial state to a given final state in quantum control, where "state" may mean a pure state |ψ>, an ensemble density matrix ρ, or a unitary propagator U(0,T). The analysis consists in showing that the endpoint map acting on control space is a Hurewicz fibration for a large class of affine control systems with vector controls. Exploiting the resulting fibration sequence and the long exact sequence of basepoint-preserving homotopy classes of maps, we show that the indicated subset of controls is homotopy equivalent to the loopspace of the state manifold. This not only allows us to understand the connectedness of "dynamical sets" realized as preimages of subsets of the state space through this endpoint map, but also provides a wealth of additional topological information about such subsets of control space.
description: Minor clarifications, and added new appendix addressing scalar control of 2-level quantum systems
The role of Surface Plasmon modes in the Casimir Effect
Creators: name: Intravaia, F.
name: Lambrecht, A.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: In this paper we study the role of surface plasmon modes in the Casimir effect. First we write the Casimir energy as a sum over the modes of a real cavity. We may identify two sorts of modes, two evanescent surface plasmon modes and propagative modes. As one of the surface plasmon modes becomes propagative for some choice of parameters we adopt an adiabatic mode definition where we follow this mode into the propagative sector and count it together with the surface plasmon contribution, calling this contribution "plasmonic". The remaining modes are propagative cavity modes, which we call "photonic". The Casimir energy contains two main contributions, one coming from the plasmonic, the other from the photonic modes. Surprisingly we find that the plasmonic contribution to the Casimir energy becomes repulsive for intermediate and large mirror separations. Alternatively, we discuss the common surface plasmon defintion, which includes only evanescent waves, where this effect is not found. We show that, in contrast to an intuitive expectation, for both definitions the Casimir energy is the sum of two very large contributions which nearly cancel each other. The contribution of surface plasmons to the Casimir energy plays a fundamental role not only at short but also at large distances.
description: 10 pages, 3 figures. TQMFA2005
Connectionist approaches to understanding aphasic perseveration.
Creators: name: Gotts, Stephen J.
name: Plaut, David
Publisher: name: Carnegie Mellon University
Year: 2004
Subjects: subject: 170199 Psychology not elsewhere classified
subject: FOS: Psychology

description: Aphasic patients make a variety of speech errors, including perseverations, in tasks that involve a linguistic component. What do perseverative and other errors imply about the nature of the neurologically damaged and intact language systems? Here we discuss the insights into the mechanisms of aphasic perseveration afforded by connectionist models. As a base for discussion, we review the Plaut and Shallice model of optic aphasic errors in object naming, which relies primarily on short-term learning mechanisms to produce perseverations. We then point out limitations of the model in addressing more recent data collected on aphasic perseveration and explain how incorporating information about the interaction of neuromodulatory systems and learning in the brain may help to overcome these limitations.
Sample-optimal classical shadows for pure states
Creators: name: Grier, Daniel
name: Pashayan, Hakop
name: Schaeffer, Luke
Publisher: name: Freie Universität Berlin
Year: 2024
Subjects: subject: pure states
subject: classical shadows
subject: sample-optimal
subject: 500 Naturwissenschaften und Mathematik::530 Physik::530 Physik

description: We consider the classical shadows task for pure states in the setting of both joint and independent measurements. The task is to measure few copies of an unknown pure state ρ in order to learn a classical description which suffices to later estimate expectation values of observables. Specifically, the goal is to approximate Tr(Oρ) for any Hermitian observable O to within additive error ϵ provided Tr(O2)≤B and ∥O∥=1. Our main result applies to the joint measurement setting, where we show ~Θ(√Bϵ−1+ϵ−2) samples of ρ are necessary and sufficient to succeed with high probability. The upper bound is a quadratic improvement on the previous best sample complexity known for this problem. For the lower bound, we see that the bottleneck is not how fast we can learn the state but rather how much any classical description of ρ can be compressed for observable estimation. In the independent measurement setting, we show that O(√Bdϵ−1+ϵ−2) samples suffice. Notably, this implies that the random Clifford measurements algorithm of Huang, Kueng, and Preskill, which is sample-optimal for mixed states, is not optimal for pure states. Interestingly, our result also uses the same random Clifford measurements but employs a different estimator.
Brief von Schlesinger'sche Buch- und Musikhandlung (Berlin) an Verein für Cultur und Wissenschaft der Juden, 02.06.1825
Creators: name: (:Unkn) Unknown
Publisher: name: Universitäts- und Landesbibliothek Sachsen-Anhalt
Year: 1825
Subjects: subject: 090

description: Rücksendung unverkaufter Exemplare der Zeitschrift für die Wissenschaft des Judentums
NGC 5128 as an isotropic rotator
Creators: name: Lokas, Ewa L.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: NGC 5128 is a well-studied elliptical galaxy with an excellent kinematic data set for planetary nebulae which has been modelled up till now only by solving the Jeans equation for spherical systems. As a first approximation beyond spherical symmetry we model the galaxy as an axisymmetric system flattened by rotation with isotropic velocity distribution. We propose a new version of such an isotropic rotator having cuspy density profile with NFW-like behavior. The solutions of the Jeans equations for a single component of such form do not reproduce the data well: the rotation curve rises too slowly with radius and the velocity dispersion profile drops too fast. The data are well fitted however by a system built with two components: a more compact, flattened, less massive, fast-rotating and cold `bulge' and an extended, almost spherical, more massive, slow-rotating and hot `halo'. This picture agrees well with the results of recent N-body simulations of galaxy mergers which tend to produce oblate rotating spheroids. The total mass of the system is estimated to be (9.1 +/- 3.5) x 10^11 solar masses and the mass-to-light ratio is only 26 +/- 17 solar units.
description: 4 pages, 3 figures, revised version accepted for publication in ApJ Letters
Nonholonomic Hamilton-Jacobi Theory via Chaplygin Hamiltonization
Creators: name: Ohsawa, Tomoki
name: Fernandez, Oscar E.
name: Bloch, Anthony M.
name: Zenkov, Dmitry V.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Mathematical Physics (math-ph)
subject: Dynamical Systems (math.DS)
subject: Symplectic Geometry (math.SG)
subject: FOS: Physical sciences
subject: FOS: Mathematics
subject: 70F25, 70H06, 70H20

description: We develop Hamilton-Jacobi theory for Chaplygin systems, a certain class of nonholonomic mechanical systems with symmetries, using a technique called Hamiltonization, which transforms nonholonomic systems into Hamiltonian systems. We give a geometric account of the Hamiltonization, identify necessary and sufficient conditions for Hamiltonization, and apply the conventional Hamilton-Jacobi theory to the Hamiltonized systems. We show, under a certain sufficient condition for Hamiltonization, that the solutions to the Hamilton-Jacobi equation associated with the Hamiltonized system also solve the nonholonomic Hamilton-Jacobi equation associated with the original Chaplygin system. The results are illustrated through several examples.
description: Accepted for publication in Journal of Geometry and Physics
Ptinus (Tectoptinus) tectus Boieldieu 1856
Creators: name: Zahradník, Petr
name: Demetriou, Jakovos
Publisher: name: Zenodo
Year: 2023
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Coleoptera
Ptinidae
Ptinus
Ptinus tectus

description: Ptinus (Tectoptinus) tectus Boieldieu, 1856
Borowski 2007: 337; Denux & Zagatti 2010: 346; Zahradník 2016b: 118.
Distribution. P i: AF AG AU AZ BE BH BU BY CH CR CY CZ DE EG EN FA FI FR GB GE GR HU IC ID IN IR IS IT JA KZ LA LT LU MC MD MO NC NL NP NR PL PT RU SC SK SL SP SV SY SZ TR TU UK YU A: AS NZ E i: KY SF N i: CN DEA US Nt i: AY CL FK GN JC. Cosmopolitan (Borowski 2007).
Alien status. Alien to Cyprus, originally an Australian species (Denux & Zagatti 2010).
description: Published as part of Zahradník, Petr & Demetriou, Jakovos, 2023, A review of the Ptinidae (Coleoptera: Bostrichoidea) of Cyprus, including new faunistic records and the description of a new species, pp. 243-265 in Zootaxa 5306 (2) on page 258, DOI: 10.11646/zootaxa.5306.2.5, http://zenodo.org/record/8061315
Connectionism : is it a paradigm shift for psychology?
Creators: name: Schneider, Walter
name: Artificial Intelligence And Psychology Project.
Publisher: name: Carnegie Mellon University
Year: 1987
Subjects: subject: 170199 Psychology not elsewhere classified
subject: FOS: Psychology

description: Abstract: "Connectionism is a method of modeling cognition as the interaction of neuron-like units. Connectionism has received a grea[t] deal of interest and may represent a paradigm shift for psychology. The nature of a paradigm shift (Kuhn, 1970) is reviewed with respect to connectionism. The reader is provided an overview on connectionism including: an introduction to connectionist modeling, new issues it emphasizes, a brief history, its developing sociopolitical impact, theoretical impact, and empirical impact. Cautions, concerns, and enthusiasm for connectionism are expressed."
Lifetime measurement of the $^{229}$Th nuclear isomer
Creators: name: Seiferle, Benedict
name: von der Wense, Lars
name: Thirolf, Peter G.
Publisher: name: arXiv
Year: 2018
Subjects: subject: Nuclear Experiment (nucl-ex)
subject: FOS: Physical sciences

description: The first excited isomeric state of $^{229}$Th possesses the lowest energy among all known excited nuclear states. The expected energy is accessible with today's laser technology and in principle allows for a direct optical laser excitation of the nucleus. The isomer decays via three channels to its ground-state (internal conversion, $γ$ decay and bound internal conversion), whose strengths depend on the charge state of $^{229m}$Th. We report on the measurement of the internal-conversion decay half-life of neutral $^{229m}$Th. A half-life of 7 $\pm$ 1 $μ$s has been measured, which is in the range of theoretical predictions and, based on the theoretically expected lifetime of $\approx10^4$ s of the photonic decay channel, gives further support for an internal conversion coefficient of $\approx10^9$, thus constraining the strength of a radiative branch in the presence of IC.
description: 8 pages, 4 Figures
Energy distribution in nonaxisymmetric magnetic Taylor-Couette flow
Creators: name: Gellert, M.
name: Ruediger, G.
name: Fournier, A.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: Azimuthal magnetorotational instability is a mechanism that generates nonaxisymmetric field pattern. Nonlinear simulations in an infinite Taylor-Couette system with current-free external field show, that not only the linearly unstable mode m=1 appears, but also an inverse cascade transporting energy into the axisymmetric field is possible. By varying the Reynolds number of the flow and the Hartmann number for the magnetic field, we find that the ratio between axisymmetric (m=0) and dominating nonaxisymmetric mode (m=1) can be nearly free chosen. On the surface of the outer cylinder this mode distribution appears similarly, but with weaker axisymmetric fields. We do not find significant differences in the case that a constant current within the flow is added.
description: 4 pages, 6 figures, accepted for publication in Astronomische Nachrichten
title: Does communication increase the precision of beliefs?
Creators: name: Bruttel, Lisa
name: Petrishcheva, Vasilisa
Publisher: name: Universität Potsdam
Year: 2024
Subjects: subject: 330 Wirtschaft

description: In this paper, we study one channel through which communication may facilitate cooperative behavior – belief precision. In a prisoner’s dilemma experiment, we show that communication not only makes individuals more optimistic that their partner will cooperate but also increases the precision of this belief, thereby reducing strategic uncertainty. To disentangle the shift in mean beliefs from the increase in precision, we elicit beliefs and precision in a two-stage procedure and in three situations: without communication, before communication, and after communication. We find that the precision of beliefs increases during communication.
description: CEPA Discussion Papers; 74
title: 02_0515
Creators: name: Wesley Baldwin, John
name: Baldwin, John W.
Publisher: name: NAKALA - https://nakala.fr (Huma-Num - CNRS)
publisherIdentifier: https://ror.org/04ces3204
publisherIdentifierScheme: ROR
Year: 2018
Subjects: subject: LaMOP
subject: Laboratoire de Médiévistique Occidentale de Paris

description: L'ensemble de ces notes ont été crée par John Baldwin lors d'une de ses premières périodes de résidence à Paris. Ces documents comprennent tous les magistri qu’il avait pu rencontrer dans ses sources. Aux XIIème et XIIIème siècles, les universités n'existant pas encore, le titre de magister s'il évoque certainement une compétence n'est pas rattaché de façon systématique au passage par les écoles. De surcroît, les magistris sont le plus souvent désignés par leur seul prénom. La lecture de ces données est donc difficile et suppose un long travail pour tenter d'identifier un individu auquel on pourrait rattacher plusieurs mentions. John Baldwin avait donc renoncé à utiliser ces données pour donner un prolongement à sa magnifique étude sur les gradués d'université et leur emploi par les Capétiens et les Plantagenêts. Néanmoins, il a conservé ces données et elles sont potentiellement très utile dans le cadre de Studium, comme le sont toutes les mentions dans les volumes des Fasti Ecclesiae Gallicanae de chanoines portant ce titre de magister sans autres précisions. L'ampleur des dépouillements rend ces données très utiles et nous devons une grande reconnaissance à John Baldwin pour avoir pris la peine de faire photocopier ses fiches et de nous les avoir transmises amicalement.
Les données ainsi que les images des fiches sont accessibles sur le site Internet à l'adresse suivante : http://studium-baldwin.lamop.fr/.
Les transcriptions des fiches ont été effectuées par des étudiants de Paris 1 Panthéon - Sorbonne mais elles n'ont pas été corrigées par la suite.
description: Relation: https://lamop.hypotheses.org/
Equivalence Principle and Gravitational Redshift
Creators: name: Hohensee, Michael A.
name: Chu, Steven
name: Peters, Achim
name: Mueller, Holger
Publisher: name: arXiv
Year: 2011
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: Atomic Physics (physics.atom-ph)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We investigate leading order deviations from general relativity that violate the Einstein equivalence principle in the gravitational standard model extension. We show that redshift experiments based on matter waves and clock comparisons are equivalent to one another. Consideration of torsion balance tests, along with matter wave, microwave, optical, and Mössbauer clock tests, yields comprehensive limits on spin-independent Einstein equivalence principle-violating standard model extension terms at the $10^{-6}$ level.
description: 4 pages, 1 figure, 2 tables. Detailed synchronization procedure. Accepted in Physical Review Letters