cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Isotopic evolution of the inner Solar System inferred from molybdenum isotopes in meteorites
Creators: name: Spitzer, Fridolin
name: Burkhardt, Christoph
name: Budde, Gerrit
name: Kruijer, Thomas S.
name: Morbidelli, Alessandro
name: Kleine, Thorsten
Publisher: name: arXiv
Year: 2020
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: FOS: Physical sciences

description: The fundamentally different isotopic compositions of non-carbonaceous (NC) and carbonaceous (CC) meteorites reveal the presence of two distinct reservoirs in the solar protoplanetary disk that were likely separated by Jupiter. However, the extent of material exchange between these reservoirs, and how this affected the composition of the inner disk are not known. Here we show that NC meteorites display broadly correlated isotopic variations for Mo, Ti, Cr, and Ni, indicating the addition of isotopically distinct material to the inner disk. The added material resembles bulk CC meteorites and Ca-Al-rich inclusions in terms of its enrichment in neutron-rich isotopes, but unlike the latter materials is also enriched in s-process nuclides. The comparison of the isotopic composition of NC meteorites with the accretion ages of their parent bodies reveals that the isotopic variations within the inner disk do not reflect a continuous compositional change through the addition of CC dust, indicating an efficient separation of the NC and CC reservoirs and limited exchange of material between the inner and outer disk. Instead, the isotopic variations among NC meteorites more likely record a rapidly changing composition of the disk during infall from the Sun's parental molecular cloud, where each planetesimal locks the instant composition of the disk when it forms. A corollary of this model is that late-formed planetesimals in the inner disk predominantly accreted from secondary dust that was produced by collisions among pre-existing NC planetesimals.
description: Accepted for publication in Astrophysical Journal Letters, June 17, 2020
Quantum Fluctuations and Large Deviation Principle for Microscopic Currents of Free Fermions in Disordered Media
Creators: name: Bru, J. -B.
name: Pedra, W. de Siqueira
name: Ratsimanetrimanana, A.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: We contribute an extension of large-deviation results obtained in [N.J.B. Aza, J.-B. Bru, W. de Siqueira Pedra, A. Ratsimanetrimanana, J. Math. Pures Appl. 125 (2019) 209] on conductivity theory at atomic scale of free lattice fermions in disordered media. Disorder is modeled by (i) a random external potential, like in the celebrated Anderson model, and (ii) a nearest-neighbor hopping term with random complex-valued amplitudes. In accordance with experimental observations, via the large deviation formalism, our previous paper showed in this case that quantum uncertainty of microscopic electric current densities around their (classical) macroscopic value is suppressed, exponentially fast with respect to the volume of the region of the lattice where an external electric field is applied. Here, the quantum fluctuations of linear response currents are shown to exist in the thermodynamic limit and we mathematically prove that they are related to the rate function of the large deviation principle associated with current densities. We also demonstrate that, in general, they do not vanish (in the thermodynamic limit) and the quantum uncertainty around the macroscopic current density disappears exponentially fast with an exponential rate proportional to the squared deviation of the current from its macroscopic value and the inverse current fluctuation, with respect to growing space (volume) scales.
Current distribution and ac loss for a superconducting rectangular strip with in phase alternating current and applied field
Creators: name: Pardo, E.
name: Gomory, F.
name: Souc, J.
name: Ceballos, J. M.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: The case of ac transport at in-phase alternating applied magnetic fields for a superconducting rectangular strip with finite thickness has been investigated. The applied magnetic field is considered perpendicular to the current flow. We present numerical calculations assuming the critical state model of the current distribution and ac loss for various values of aspect ratio, transport current and applied field amplitude. A rich phenomenology is obtained due to the metastable nature of the critical state. We perform a detailed comparison with the analytical limits and we discuss their applicability for the actual geometry of superconducting conductors. We also define a loss factor which allow a more detailed analysis of the ac behavior than the ac loss. Finally, we compare the calculations with experiments, showing a significant qualitative and quantitative agreement without any fitting parameter.
description: 21 pages, 12 figures in 15 extra pages/files. Submitted to Physical Review B
Human-Agent Teamwork and Adjustable Autonomy in Practice
Creators: name: Sierhuis, Maarten
name: Bradshaw, Jeffrey
name: Acquisti, Alessandro
name: Hoof, Ron Van
name: Renia Jeffers
name: Uszok, Andrzej
Publisher: name: Carnegie Mellon University
Year: 2021
Subjects: subject: 80602 Computer-Human Interaction
subject: FOS: Psychology

description: This paper outlines a preliminary perspective on teamwork and adjustable autonomy in groups involving a mix of humans and autonomous agents. Unlike other approaches to agent teamwork, a humancentered perspective to human-agent interaction is used. The paper describes how we are integrating the Brahms and KAoS agent frameworks in order to model and simulate realistic work situations in space and to support the design of robotic and software agents for human-agent teamwork.
Presented at the 7th International Symposium on Artificial Intelligence, Robotics, and Automation in Space: i-SAIRAS 2003, Nara, Japan, May 19-23, 2003
DEMAND FOR PLANTS SOLD IN NORTH CAROLINA GARDEN CENTERS
Creators: name: Abdelmagid, Banaga D.
name: Wohlgenant, Michael K.
name: Safley, Charles D.
name: Abdelmagid, Banaga D.
name: Wohlgenant, Michael K.
name: Safley, Charles D.
Publisher: name: Unknown
Year: 1996
Subjects: Demand and Price Analysis

description: Demand for selected nursery plants sold in North Carolina (i.e., begonia, dianthus, geranium, impatiens, marigold, petunia, and vinca) was found to be affected more by prices than by income, demographic, and other variables. By using cross-sectional data, a modified AIDS model, incorporating demographic variables and quadratic income response, was estimated. Inverse Mills's ratios were also included in the model to correct for selectivity bias, resulting from zero purchases. Significant own-price elasticities ranged from -0.71 to -1.65, and income elasticities ranged from -0.78 to 0.41.
Crossover transitions in a bus-car mixed-traffic cellular automata model
Creators: name: Dailisan, Damian N.
name: Lim, May T.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Cellular Automata and Lattice Gases (nlin.CG)
subject: FOS: Physical sciences

description: We modify the Nagel-Schreckenberg (NaSch) cellular automata model to study mixed-traffic dynamics. We focus on the interplay between passenger availability and bus-stopping constraints. Buses stop next to occupied cells of a discretized sidewalk model. By parametrizing the spacing distance between designated stops, our simulation covers the range of load-anywhere behavior to that of well-spaced stops. The interplay of passenger arrival rates and bus densities drives crossover transitions from platooning to non-platooned (free-flow and congested) states. We show that platoons can be dissolved by either decreasing the passenger arrival rate or increasing the bus density. The critical passenger arrival rate at which platoons are dissolved is an exponential function of vehicle density. We also find that at low densities, spacing stops close together induces platooned states, which reduces system speeds and increases waiting times of passengers.
description: 12 pages, 10 figures
Additional file 1 of The SLC36 transporter Pathetic is required for neural stem cell proliferation and for brain growth under nutrition restriction
Creators: name: Shiyun Feng
name: Zacharioudaki, Evanthia
name: Millen, Kat
name: Bray, Sarah J.
Publisher: name: figshare
Year: 2020
Subjects: subject: Genetics
subject: FOS: Biological sciences

description: Additional file 1 Fig. S1. Path is expressed in both glia and neural stem cells. (A-D) Anti-Path staining (green in A&B, grey in A’&B′) is enriched at the surface of the brain, as shown on the same surface with glial cells marked by Repo (magenta). (E-F) Anti-Path (green in C&D, grey in C′&D’) stains NBs when glial-expressed Path is depleted by pathRNAi. TypeI NBs are marked with Ase (red), glia cells were marked with Repo (blue) Scale bar, 50 μm.
THE ECONOMIC CONTRIBUTION OF AGRICULTURE IN DELAWARE
Creators: name: Tytus, Peter J.
name: Hastings, Steven E.
name: Tanjuakio, Rodolfo V.
name: Tytus, Peter J.
name: Hastings, Steven E.
name: Tanjuakio, Rodolfo V.
Publisher: name: Unknown
Year: 1996
Subjects: Agribusiness

description: The decreasing share of production agriculture in the U.S. economy in general and Delaware in particular has raised questions about the amount of government resources being spent on the local agricultural sector. A basic question in the debate is: "What is the real economic contribution of agriculture?" This study looks at the economic role of agriculture in Delaware, presenting different perspectives of what agriculture is and what it contributes to the state economy. Based on three definitions of agriculture, the economic impacts as measured by shares to total employment, output, and value added were estimated using IMPLAN, an input-output modeling software. In each economic impact measure, the share of the local agricultural sector to the total Delaware economy ranged from around 2% to 6% in 1991.
Running coupling at finite temperature and chiral symmetry restoration in QCD
Creators: name: Braun, Jens
name: Gies, Holger
Publisher: name: arXiv
Year: 2005
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We analyze the running gauge coupling at finite temperature for QCD, using the functional renormalization group. The running of the coupling is calculated for all scales and temperatures. At finite temperature, the coupling is governed by a fixed point of the 3-dimensional theory for scales smaller than the corresponding temperature. The running coupling can drive the quark sector to criticality, resulting in chiral symmetry breaking. Our results provide for a quantitative determination of the phase boundary in the plane of temperature and number of massless flavors. Using the experimental value of the coupling at the tau mass scale as the only input parameter, we obtain, e.g., for N_f=3 massless flavors a critical temperature of T_cr ~ 148 MeV in good agreement with lattice simulations.
description: 6 pages, 3 figures; references added, results updated and discussion expanded (matches PLB version)
The Local Group as a test system for Modified Newtonian Dynamics
Creators: name: Benisty, David
name: Guendelman, Eduardo I.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: Astrophysics of Galaxies (astro-ph.GA)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: The Local Group (LG) is {an appropriate} test system for Modified Newtonian Dynamics, since the acceleration of M31 galaxy is fully in the deep MOND regime $a \ll a_0$. We model the LG as a two body problem of $M31$ and the Milky Way (MW) galaxies. {Extending previous studies, we also include the Cosmological Constant.} The assumption that in the big bang the galaxies emerged from the same place and approach to the measured distance and velocity today (the Timing Argument), predicts the total mass for the LG: $(0.447 \pm 0.005)\cdot 10^{12} M_{\odot}$. The corresponding motion of the LG predicts a past encounter. The ratio between the baryonic mass that MOND considers to the mass that Newtonian case predicted, which includes dark matter is $10.74 \pm 0.82$. This ratio agrees with the ratio between the dark matter and baryonic matter in other galaxies.
description: 7 pages; 5 figures
Chaotic Dynamics of a Free Particle Interacting Linearly with a Harmonic Oscillator
Creators: name: De Bievre, Stephan
name: Parris, Paul E.
name: Silvius, Alex A.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Chaotic Dynamics (nlin.CD)
subject: FOS: Physical sciences

description: We study the closed Hamiltonian dynamics of a free particle moving on a ring, over one section of which it interacts linearly with a single harmonic oscillator. On the basis of numerical and analytical evidence, we conjecture that at small positive energies the phase space of our model is completely chaotic except for a single region of complete integrability with a smooth sharp boundary showing no KAM-type structures of any kind. This results in the cleanest mixed phase space structure possible, in which motions in the integrable region and in the chaotic region are clearly separated and independent of one another. For certain system parameters, this mixed phase space structure can be tuned to make either of the two components disappear, leaving a completely integrable or completely chaotic phase space. For other values of the system parameters, additional structures appear, such as KAM-like elliptic islands, and one parameter families of parabolic periodic orbits embedded in the chaotic sea. The latter are analogous to bouncing ball orbits seen in the stadium billiard. The analytical part of our study proceeds from a geometric description of the dynamics, and shows it to be equivalent to a linked twist map on the union of two intersecting disks.
description: 17 pages, 11 figures Typos corrected to display section labels
Three-dimensional matter-wave vortices in optical lattices
Creators: name: Alexander, Tristram J.
name: Ostrovskaya, Elena A.
name: Sukhorukov, Andrey A.
name: Kivshar, Yuri S.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Other Condensed Matter (cond-mat.other)
subject: FOS: Physical sciences

description: We predict the existence of spatially localized nontrivial vortex states of a Bose-Einstein condensate with repulsive atomic interaction confined by a three-dimensional optical lattice. Such vortex-like structures include planar vortices, their co- and counter-rotating bound states, and distinctly three-dimensional non-planar vortex states. We demonstrate numerically that many of these vortex structures are remarkably robust, and therefore can be generated and observed in experiment.
description: 4 pages, 6 figures
A general geometric growth model for pseudofractal scale-free web
Creators: name: Zhang, Zhongzhi
name: Rong, Lili
name: Zhou, Shuigeng
Publisher: name: arXiv
Year: 2005
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Other Condensed Matter (cond-mat.other)
subject: FOS: Physical sciences

description: We propose a general geometric growth model for pseudofractal scale-free web, which is controlled by two tunable parameters. We derive exactly the main characteristics of the networks: degree distribution, second moment of degree distribution, degree correlations, distribution of clustering coefficient, as well as the diameter, which are partially determined by the parameters. Analytical results show that the resulting networks are disassortative and follow power-law degree distributions, with a more general degree exponent tuned from 2 to $1+\frac{\ln3}{\ln2}$; the clustering coefficient of each individual node is inversely proportional to its degree and the average clustering coefficient of all nodes approaches to a large nonzero value in the infinite network order; the diameter grows logarithmically with the number of network nodes. All these reveal that the networks described by our model have small-world effect and scale-free topology.
description: 16 pages, 4 figures, accepted for publication in Physica A
Optimal Pointers for Joint Measurement of sigma-x and sigma-z via Homodyne Detection
Creators: name: Janssens, Bas
name: Bouten, Luc
Publisher: name: arXiv
Year: 2005
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We study a model of a two-level system (i.e. a qubit) in interaction with the electromagnetic field. By means of homodyne detection, one field-quadrature is observed continuously in time. Due to the interaction, information about the initial state of the qubit is transferred into the field, thus influencing the homodyne measurement results. We construct random variables (pointers) on the probability space of homodyne measurement outcomes having distributions close to the initial distributions of sigma-x and sigma-z. Using variational calculus, we find the pointers that are optimal. These optimal pointers are very close to hitting the bound imposed by Heisenberg's uncertainty relation on joint measurement of two non-commuting observables. We close the paper by giving the probability densities of the pointers.
description: 20 pages, 13 figures, typos corrected, reference added
Additional file 1 of Utilisation of medical rehabilitation services by persons of working age with a migrant background, in comparison to non-migrants: a scoping review
Creators: name: Dyck, Maria
name: Breckenkamp, Jürgen
name: Wicherski, Julia
name: Schröder, Chloé Charlotte
name: Jean-Baptist Du Prel
name: Razum, Oliver
Publisher: name: figshare
Year: 2020
Subjects: subject: Medicine
subject: Sociology
subject: FOS: Sociology
subject: 69999 Biological Sciences not elsewhere classified
subject: FOS: Biological sciences
subject: Science Policy
subject: 111714 Mental Health
subject: FOS: Health sciences

description: Additional file 1: Table S1. Studies, technical information to answer the review question. Table S2. Studies, content-related information to answer the review question
SEARCH THEORY RISK PREFERENCE AND FARMLAND PRESERVATION
Creators: name: Tavernier, Edmund M.
name: Li, Farong
name: Temel, Tugrul T.
name: Tavernier, Edmund M.
name: Li, Farong
name: Temel, Tugrul T.
Publisher: name: Unknown
Year: 1996
Subjects: Risk and Uncertainty

description: This paper uses search theory to examine the role that risk preference (RP) plays in farmland preservation. Assuming that the distribution of the offer price is fixed, the analysis indicates that risk-averse agents have lower reservation prices than risk-neutral agents, and that agricultural land held by the former exits farming at a faster rate. The results also show that farmland preservation policies which increase reservation prices have a greater capitalization effect if agents are risk-loving, and that such policies, while effectively protecting the interest of land speculators, may be less effective in serving the needs of farming and farm-held open space.
Explaining Xenon-1T signal with FIMP dark matter and neutrino mass in a $U(1)_{X}$ extension
Creators: name: Khan, Sarif
Publisher: name: arXiv
Year: 2020
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: In the present work, we have extended the standard model by an abelian $U(1)_{X}$ gauge group and additional particles. In particular, we have extended the particle content by three right handed neutrinos, two singlet scalars and two vector like leptons. Charged assignments under different gauge groups are such that the model is gauge anomaly free and the anomaly contributions cancel among generations. Once the symmetry gets broken then three physical Higgses are produced, one axion like particle (ALP), which also acts as the keV scale FIMP dark matter, is produced and the remaining component is absorbed by the extra gauge boson. Firstly, we have successfully generated neutrino mass by the type-I seesaw mechanism for normal hierarchy with the $3σ$ bound on the oscillation parameters. The ALP in the present model can explain the Xenon-1T electron recoil signal at keV scale through its coupling with the electron. We also have vector like leptons which help in producing the dark matter from their decay by the freeze in mechanism. Electron and tauon get mass from dimensional-5 operators at Planck scale and if we consider the vevs $v_{1,2} \simeq 10^{12}$ GeV then we can obtain the correct value of the electron mass but not the tauon mass. Vector like leptons help in getting the correct value of the tauon mass through another higher dimensional operator which also has a role in DM production by the $2 \rightarrow 2$ process, giving the correct ballpark value of relic density for suitable reheat temperature of the Universe. We have shown that the ALP production by the higher dimensional operator can explain the electron, tauon mass and Xenon-1T signal simultaneously whereas the decay production can not explain all of them together.
description: 22 pages, 6 figures
Gap-Townes solitons and localized excitations in low dimensional Bose Einstein condensates in optical lattices
Creators: name: Abdullaev, Fatkhulla Kh.
name: Salerno, Mario
Publisher: name: arXiv
Year: 2005
Subjects: subject: Other Condensed Matter (cond-mat.other)
subject: FOS: Physical sciences

description: We discuss localized ground states of Bose-Einstein condensates in optical lattices with attractive and repulsive three-body interactions in the framework of a quintic nonlinear Schrödinger equation which extends the Gross-Pitaevskii equation to the one dimensional case. We use both a variational method and a self-consistent approach to show the existence of unstable localized excitations which are similar to Townes solitons of the cubic nonlinear Schrödinger equation in two dimensions. These solutions are shown to be located in the forbidden zones of the band structure, very close to the band edges, separating decaying states from stable localized ones (gap-solitons) fully characterizing their delocalizing transition. In this context usual gap solitons appear as a mechanism for arresting collapse in low dimensional BEC in optical lattices with attractive real three-body interaction. The influence of the imaginary part of the three-body interaction, leading to dissipative effects on gap solitons and the effect of atoms feeding from the thermal cloud are also discussed. These results may be of interest for both BEC in atomic chip and Tonks-Girardeau gas in optical lattices.
Dynamical evolution of two-planet systems and its connection with white dwarf atmospheric pollution
Creators: name: Maldonado, R. F.
name: Villaver, E.
name: Mustill, A. J.
name: Chávez, M.
name: Bertone, E.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: Asteroid material is detected in white dwarfs (WDs) as atmospheric pollution by metals, in the form of gas/dust discs, or in photometric transits. Within the current paradigm, minor bodies need to be scattered, most likely by planets, into highly eccentric orbits where the material gets disrupted by tidal forces and then accreted onto the star. This can occur through a planet-planet scattering process triggered by the stellar mass loss during the post main-sequence evolution of planetary systems. So far, studies of the $N$-body dynamics of this process have used artificial planetary system architectures built ad hoc. In this work, we attempt to go a step further and study the dynamical instability provided by more restrictive systems, that, at the same time allow us an exploration of a wider parameter space: the hundreds of multiple planetary systems found around main-sequence (MS) stars. We find that most of our simulated systems remain stable during the MS, Red and Asymptotic Giant Branch and for several Gyr into the WD phases of the host star. Overall, only $\approx$ 2.3$\%$ of the simulated systems lose a planet on the WD as a result of dynamical instability. If the instabilities take place during the WD phase most of them result in planet ejections with just 5 planetary configurations ending as a collision of a planet with the WD. Finally 3.2$\%$ of the simulated systems experience some form of orbital scattering or orbit crossing that could contribute to the pollution at a sustained rate if planetesimals are present in the same system.
description: 18 pages, 14 figures
Spin Parity of Spiral Galaxies II: A catalogue of 80k spiral galaxies using big data from the Subaru Hyper Suprime-Cam Survey and deep learning
Creators: name: Tadaki, Ken-ichi
name: Iye, Masanori
name: Fukumoto, Hideya
name: Hayashi, Masao
name: Rusu, Cristian E.
name: Shimakawa, Rhythm
name: Tosaki, Tomoka
Publisher: name: arXiv
Year: 2020
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: We report an automated morphological classification of galaxies into S-wise spirals, Z-wise spirals, and non-spirals using big image data taken from Subaru/Hyper Suprime-Cam (HSC) Survey and a convolutional neural network(CNN)-based deep learning technique. The HSC i-band images are about 25 times deeper than those from the Sloan Digital Sky Survey (SDSS) and have a two times higher spatial resolution, allowing us to identify substructures such as spiral arms and bars in galaxies at z>0.1. We train CNN classifiers by using HSC images of 1447 S-spirals, 1382 Z-spirals, and 51,650 non-spirals. As the number of images in each class is unbalanced, we augment the data of spiral galaxies by horizontal flipping, rotation, and rescaling of images to make the numbers of three classes similar. The trained CNN models correctly classify 97.5% of the validation data, which is not used for training. We apply the CNNs to HSC images of a half million galaxies with an i-band magnitude of i<20 over an area of 320 deg^2. 37,917 S-spirals and 38,718 Z-spirals are identified, indicating no significant difference between the numbers of two classes. Among a total of 76,635 spiral galaxies, 48,576 are located at z>0.2, where we are hardly able to identify spiral arms in the SDSS images. Our attempt demonstrates that a combination of the HSC big data and CNNs has a large potential to classify various types of morphology such as bars, mergers and strongly-lensed objects.
description: 12 pages, 10 figures, 3 tables, accepted for publication in MNRAS
Neue Materialien zum Text und zur Interpretation des Kindheitsevangeliums des Pseudo-Thomas
Creators: name: Baars, Willem
name: Helderman, Jan
Publisher: name: Oriens christianus : Hefte für die Kunde des christlichen Orients
Year: 2024

description: Oriens christianus : Hefte für die Kunde des christlichen Orients, Bd. 78 (1994): Oriens christianus, Band 78
EXHAUSTIBLE RESOURCE ALLOCATION, INTERGENERATIONAL EQUITY, AND SUSTAINABILITY
Creators: name: Knapp, Keith C.
name: Knapp, Keith C.
Publisher: name: Unknown
Year: 1996
Subjects: Resource /Energy Economics and Policy

description: An OLG model with exhaustible resources and solar energy is developed, and equilibrium time paths are characterized numerically using recursive methods. For the parameter values considered, resource prices increase over time, and extractions, output, and utility decline over time until a steady-state is reached. Decreasing the intertemporal elasticity of substitution or raising consumers' subjective discount rate hastens exhaustion of the resource stock. Market equilibrium can result in much quicker use of the stock than social optimality under a constant discount rate, with consequent higher utility for early generations and lower utility for future generations in contrast to social optimality.
Collision-Dependent Atom Tunnelling Rate in Bose-Einstein Condensates
Creators: name: da Cunha, B. R.
name: de Oliveira, M. C.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Other Condensed Matter (cond-mat.other)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We show that the interaction (cross-collision) between atoms trapped in distinct sites of a double-well potential can significantly increase the atom tunneling rate for special trap configurations leading to an effective linear Rabi regime of population oscillation between the trap wells. The inclusion of cross-collisional effects significantly extends the validity of the two-mode model approach allowing it to be alternatively employed to explain the recently observed increase of tunneling rates due to nonlinear interactions.
description: 4 pages, 2 figures. Replaced with improved version
Disk and wind interaction in the young stellar object MWC 297 spatially resolved with VLTI/AMBER
Creators: name: Malbet, F.
name: Benisty, M.
name: De Wit, W. J.
name: Kraus, S.
name: Meilland, A.
name: Millour, F.
name: Tatulli, E.
name: Berger, J. -P.
name: Chesneau, O.
name: Hofmann, K. -H.
name: Isella, A.
name: Natta, A.
name: Petrov, R.
name: Preibisch, T.
name: Stee, P.
name: Testi, L.
name: Weigelt, G.
name: Collaboration, AMBER
Publisher: name: arXiv
Year: 2005
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: The young stellar object MWC 297 has been observed with the VLT interferometer equipped with the AMBER instrument. MWC 297 has been spatially resolved in the continuum with a visibility of 0.50 as well as in the Br gamma emission line where the visibility decrease to a lower value of 0.33. This change in the visibility with the wavelength can be interpreted by the presence of an optically thick disk responsible for the visibility in the continuum and of a stellar wind traced by Br gamma and whose apparent size is 40% larger. We validate this interpretation by building a model of the stellar environment that combines a geometrically thin, optically thick accretion disk model consisting of gas and dust, and a latitude-dependent stellar wind outflowing above the disk surface. The continuum emission and visibilities obtained from this model are fully consistent with the interferometric AMBER data. They agree also with existing optical, near-infrared spectra and other broad-band near-infrared interferometric visibilities. A picture emerges in which MWC 297 is surrounded by an equatorial flat disk that is possibly still accreting and an outflowing wind which has a much higher velocity in the polar region than at the equator. [abridged]
description: 13 pages; to be published in A&A; Acceptance day: 11/10/2005
Additional file 1 of Long term efficacy and safety of rivaroxaban plus cilostazol in the treatment of critical ischemia of the lower limbs in a frail, elderly patient with non valvular atrial fibrillation
Creators: name: Trani, Antonio
name: Benedetto, Pietro
name: Leo, Ferdinando Di
name: Baiano, Angela
name: Esposito, Andrea
name: Menna, Danilo
name: Allegretti, Arianna
name: Cappiello, Pierluigi Antonino
name: Dell’Edera, Domenico
Publisher: name: figshare
Year: 2020
Subjects: subject: Medicine
subject: Pharmacology
subject: Biotechnology
subject: 59999 Environmental Sciences not elsewhere classified
subject: FOS: Earth and related environmental sciences
subject: Cancer
subject: Science Policy
subject: Hematology
subject: 110309 Infectious Diseases
subject: FOS: Health sciences
subject: Computational Biology

description: Additional file 1.
Does Dark Matter admixed pulsar exist ?
Creators: name: Molla, Sajahan
name: Ghosh, Bidisha
name: Kalam, Mehedi
Publisher: name: arXiv
Year: 2020
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: In this paper, we have considered a twofluid model assuming that the pulsars are made of ordinary matter admixed with dark matter.Contribution of dark matter comes from the fitting of the rotation curves of the SPARC sample of galaxies[95]. For this we have investigated the dark matter based on the Singular Isothermal Sphere (SIS) dark matter density profile in the galactic halo region. Considering this twofluid model, we have studied the physical features of the pulsars present in different galaxy in details. Here, we compute the probable radii, compactness (u) and surface red-shift (Zs) of the four pulsars namely : PSR J1748-2021B in NGC 6440B galaxy, PSR J1911-5958A in NGC 6752 galaxy, PSR B1802-07 in NGC 6539 galaxy and PSR J1750-37A in NGC 6441 galaxy.
description: 10 pages, 17 figures, Accepted in EPJ Plus
Critical adsorption at chemically structured substrates
Creators: name: Sprenger, Monika
name: Schlesener, Frank
name: Dietrich, S.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: FOS: Physical sciences

description: We consider binary liquid mixtures near their critical consolute points and exposed to geometrically flat but chemically structured substrates. The chemical contrast between the various substrate structures amounts to opposite local preferences for the two species of the binary liquid mixtures. Order parameters profiles are calculated for a chemical step, for a single chemical stripe, and for a periodic stripe pattern. The order parameter distributions exhibit frustration across the chemical steps which heals upon approaching the bulk. The corresponding spatial variation of the order parameter and its dependence on temperature are governed by universal scaling functions which we calculate within mean field theory. These scaling functions also determine the universal behavior of the excess adsorption relative to suitably chosen reference systems.
IMPROVING THE RELEVANCE OF RESEARCH ON PRICE FORECASTING AND MARKETING STRATEGIES
Creators: name: Brorsen, B. Wade
name: Irwin, Scott H.
name: Brorsen, B. Wade
name: Irwin, Scott H.
Publisher: name: Unknown
Year: 1996
Subjects: subject: Demand and Price Analysis
subject: Marketing
subject: FOS: Economics and business

description: Agricultural economists' research on price forecasting and marketing strategies has been used little by those in the real world. We argue that fresh approaches to research are needed. First, we argue that we need to adopt a new theoretical paradigm, noisy rational expectations. This paradigm suggests that gains from using price forecasting models with public data or from using a marketing strategy are not impossible, but any gains are likely to be small. We need to conduct falsification tests; to perform confirmation and replication; to adjust research to reflect structural changes, such as increased contracting; and always to conduct statistical tests. We also provide a modest agenda for changing our research and extension programs.
Trityl-Based Lanthanide-Supramolecular Assemblies Exhibiting Slow Magnetic Relaxation
Creators: name: Marcinkowski, Dawid
name: Kubicki, Maciej
name: Patroniak, Violetta
name: Muzioł, Tadeusz
name: Chorazy, Szymon
name: Shi, Le
name: Zychowicz, Mikołaj
name: Majcher-Fitas, Anna
name: Podgajny, Robert
name: Gorczyński, Adam
Publisher: name: Zenodo
Year: 2023

description: The triphenylmethane (trityl) group has been recognized as a supramolecular synthon in crystal engineering, molecular machine rotors and stereochemical chirality inductors in materials science. Herein we demonstrate for the first time how it can be utilized in the domain of molecular magnetic materials through shaping of single molecule magnet (SMM) properties within the lanthanide complexes in tandem with other non-covalent interactions. Trityl-appended mono- (HL1) and bis-compartmental (HL2) hydrazone ligands were synthesized and complexated with Dy(III) and Er(III) triflate and nitrate salts to generate four monometallic (1–4) and two bimetallic (5, 6) complexes. The static and dynamic magnetic properties of 1–6 were investigated, revealing that only ligand HL1 induces assemblies (1–4) capable of showing SMM behaviour, with Dy(III) congeners (1, 2) able to exhibit the phenomenon also under zero field conditions. Theoretical ab initio studies helped in determination of Dy(III) energetic levels, magnetic anisotropic axes and corroborated magnetic relaxation mechanisms to be a combination of Raman and quantum tunnelling in zero dc field, the latter being cancelled in the optimum non-zero dc field. Our work represents the first study of magneto-structural correlations within the trityl Ln-SMMs, leading to generation of slowly relaxing zero-field dysprosium complexes within the hydrogen-bonded assemblies.

 

 
description: This work was supported by: SONATA grant UMO-2020/39/D/ST4/01182 (PI: A.G.) and OPUS grant No. 2019/35/B/ST5/01481 (PI: R.P.) from National Science Centre, Poland; from the budget for science in 2018–2021, as a part of the Polish Ministry of Science and Higher Education project; (PI: D.M.): Grant No. 0088/DIA/2018/47 in the frame of the “Diamond Grant” programme; A.G. is a scholarship holder of the Polish Ministry of Education and Science for outstanding young scientists. D.M. is a scholarship holder of the Adam Mickiewicz University Foundation for the academic year 2021/2022. We would also like to thank the reviewers for their thoughtful comments and suggestions, which helped us to improve our manuscript. Magnetic measurements were performed using equipment funded by Polish Ministry of Science and Higher Education in the framework of Large Research Infrastructure Fund (decision no. 6350/IA/158/2013.1). The maintenance and service costs of the SQUID magnetometer has been supported by a grant of the Faculty of Chemistry under the Strategic Programme Excellence Initiative at Jagiellonian University.
Additional file 1 of On innovating: an interview with Gautam Ahuja
Creators: name: Adbi, Arzi
name: Contigiani, Andrea
name: Szulanski, Gabriel
name: Ahuja, Gautam
Publisher: name: figshare
Year: 2020
Subjects: subject: 69999 Biological Sciences not elsewhere classified
subject: FOS: Biological sciences
subject: Science Policy

description: Additional file 1: Appendix
FROM THE PERSPECTIVE OF GLOBAL WARMING: ALTERNATIVE FARMING SYSTEMS AND SUSTAINABILITY
Creators: name: Paudel, Krishna P.
name: Lohr, Luanne
name: Paudel, Krishna P.
name: Lohr, Luanne
Publisher: name: Unknown
Year: 2002
Subjects: subject: Environmental Economics and Policy
subject: Production Economics
subject: carbon sequestration
subject: conservation practices
subject: strong and weak sustainability
subject: discounting method

description: According to Article 3.4 of the Kyoto Protocol, agricultural soil could be used as a sink for carbon sequestration. Soil sequestration of carbon provides dual benefits: an increase in soil productivity and a reduction in atmospheric carbon concentration. The gain in soil productivity is a slow process and attaining a steady-state level of carbon in soil takes several years. A frequently encountered difficulty in this situation is how to discount the future benefit of carbon sequestration into a current term. We compared the net benefit of four alternative management systems using discount rates based on the sliding gamma distribution, market rate of investment, and the social rate of time preference. We also calculated the sustainability of these alternate management systems based on the profitability and productivity index and their capacity to maintain the natural capital in soil. The result indicated that a management system that combines no-till and an organic source of nutrients is the most attractive system based on carbon sequestration, total discounted net present value, and sustainability perspectives.
Charge Radii of beta-Stable Nuclei
Creators: name: Nie, G. K.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: In previous work it was shown that the radius of nucleus R is determined by the alpha-cluster structure and can be estimated on the number of alpha-clusters disregarding to the number of excess neutrons. A hypothesis also was made that the radius R_m of a beta-stable isotope, which is actually measured at electron scattering experiments, is determined by the volume occupied by the matter of the core plus the volume occupied by the peripheral alpha-clusters. In this paper it is shown that the condition R_m = R restricts the number of excess neutrons filling the core to provide the beta-stability. The number of peripheral clusters can vary from 1 to 5 and the value of R for heavy nuclei almost do not change, whereas the number of excess neutrons should change with the number of peripheral clusters to get the value of R_m close to R. It can explain the path of the beta-stability and its width. The radii R_m of the stable isotopes with 12 =< Z =< 83 and the alpha-decay isotopes with 84 =< Z =< 116 that are stable to beta-decay have been calculated.
description: Latex2e 2.09, 10 pages, 3 figures
Federated Self-Supervised Learning of Multi-Sensor Representations for Embedded Intelligence
Creators: name: Saeed, Aaqib
name: Salim, Flora D.
name: Ozcelebi, Tanir
name: Lukkien, Johan
Publisher: name: arXiv
Year: 2020
Subjects: subject: Machine Learning (cs.LG)
subject: Machine Learning (stat.ML)
subject: FOS: Computer and information sciences

description: Smartphones, wearables, and Internet of Things (IoT) devices produce a wealth of data that cannot be accumulated in a centralized repository for learning supervised models due to privacy, bandwidth limitations, and the prohibitive cost of annotations. Federated learning provides a compelling framework for learning models from decentralized data, but conventionally, it assumes the availability of labeled samples, whereas on-device data are generally either unlabeled or cannot be annotated readily through user interaction. To address these issues, we propose a self-supervised approach termed \textit{scalogram-signal correspondence learning} based on wavelet transform to learn useful representations from unlabeled sensor inputs, such as electroencephalography, blood volume pulse, accelerometer, and WiFi channel state information. Our auxiliary task requires a deep temporal neural network to determine if a given pair of a signal and its complementary viewpoint (i.e., a scalogram generated with a wavelet transform) align with each other or not through optimizing a contrastive objective. We extensively assess the quality of learned features with our multi-view strategy on diverse public datasets, achieving strong performance in all domains. We demonstrate the effectiveness of representations learned from an unlabeled input collection on downstream tasks with training a linear classifier over pretrained network, usefulness in low-data regime, transfer learning, and cross-validation. Our methodology achieves competitive performance with fully-supervised networks, and it outperforms pre-training with autoencoders in both central and federated contexts. Notably, it improves the generalization in a semi-supervised setting as it reduces the volume of labeled data required through leveraging self-supervised learning.
description: Accepted for publication at IEEE Internet of Things Journal
Queering the Pacific Northwest : a case study of the Leaving Silence project
Creators: name: Tang, Denise Tse Shang
Publisher: name: University of British Columbia
Year: 2009

description: Leaving Silence: Queer Asian and Pacific Islander Oral History Exhibit (October 1996) is both a community project and an educational campaign, that was conceived and executed in Seattle, Washington. The 12-panel exhibit is composed of 13 narratives and 34 black-and-white photographs, and its theme is "coming out." The narrators and those who appear in the photographs identify as queer and as Asian and Pacific Islander. The project involved the collaboration of four community-based organizations: the Asian Lesbian and Bisexual Alliance, the Asian Pacific AIDS Council, the Asian Pacific Islander Homosexuality/Homophobia Education Project, and Queer & Asian. In this thesis I analyze this exhibit and demonstrate its relevance to critical pedagogy and to all those movements interested in the establishment of social justice.
Superfluidity in a gas of strongly-interacting bosons
Creators: name: Kavoulakis, G. M.
name: Yu, Y.
name: Ogren, M.
name: Reimann, S. M.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Other Condensed Matter (cond-mat.other)
subject: FOS: Physical sciences

description: We consider small systems of bosonic atoms rotating in a toroidal trap. Using the method of exact numerical diagonalization of the many-body Hamiltonian, we examine the transition from the Bose-Einstein condensed state to the Tonks-Girardeau state. The system supports persistent currents in a wide range between the two limits, even in the absence of Bose-Einstein condensation.
description: 7 pages, 3 figures, revised version, to appear in Europh. Lett
[Letter from Ingebrigt Severin Hagen]
Creators: name: Hagen, Ingebrigt Severin
Publisher: name: Unknown
Year: 1906

description: Expresses willingness to accept kr. 800. Comments that DKNVS are doing a good deal, getting 40 metres of books, the herbarium and someone to do a moss flora. He has been asked by the Prince of Monaco to finish identifying the mosses of the Monaco Expedition to Spitsbergen this summer.
AN EVALUATION OF AN ECONOMIC STRATEGY FOR PREVENTING WATER POLLUTION USING A PHOSPHORUS CONSISTENT TRANSPORTATION MODEL: A CASE OF BROILER LITTER MANAGEMENT
Creators: name: Adhikari, Murali
name: Paudel, Krishna P.
name: Martin, Neil R.
name: Adhikari, Murali
name: Paudel, Krishna P.
name: Martin, Neil R.
Publisher: name: Unknown
Year: 2002
Subjects: Environmental Economics and Policy

description: We calculated the profitability of using broiler litter as a source of plant nutrient using a phosphorus consistent litter application rule. We found that each ton of litter can be transferred cost effectively up to 164 miles from the production facilities. The minimum cost phosphorus consistent transportation model developed to meet the nutrient needs of 29 counties in North Alabama revealed that not all the litter can be utilized in the region. The total cost for nutrient supply increased when transportation of litter from heavily surplus counties were prioritized. The effect of chemical fertilizer price change minimally affected the total litter use.
AN ASSESSMENT OF DEFICIENCY PAYMENTS TO MILK PRODUCERS IN JAPAN
Creators: name: Suzuki, Nobuhiro
name: Judson, D.H.
name: Suzuki, Nobuhiro
name: Judson, D.H.
Publisher: name: Unknown
Year: 1991
Subjects: Agricultural and Food Policy
Livestock Production/Industries

description: This article represents an econometric assessment of the role that deficiency payments have played in developing the Japanese fluid and manufacturing milk markets and the potential effects of reducing deficiency payments on these milk markets. Principal findings are: (a) an historical simulation of the model without deficiency payments and import quotas indicates that these measures have reduced the variation in milk prices that would have otherwise occurred under this model, and price supports through these measures have resulted in greater milk production than would have accrued without price supports; and (b) a reduction in deficiency payments beginning in 1998 results in a decrease in milk prices and manufacturing milk supply and an increase in fluid milk supply and dairy imports, but fluid milk prices soon stop declining. The policy implications of such a decline in deficiency payments are discussed.
Operator equations and Moyal products -- metrics in quasi-hermitian quantum mechanics
Creators: name: Scholtz, F G
name: Geyer, H B
Publisher: name: arXiv
Year: 2005
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: The Moyal product is used to cast the equation for the metric of a non-hermitian Hamiltonian in the form of a differential equation. For Hamiltonians of the form $p^2+V(ix)$ with $V$ polynomial this is an exact equation. Solving this equation in perturbation theory recovers known results. Explicit criteria for the hermiticity and positive definiteness of the metric are formulated on the functional level.
description: References added