cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
From local to nonlocal Fermi liquid in doped antiferromagnets
Creators: name: Prelovsek, P.
name: Jaklic, J.
name: Bedell, K.
Publisher: name: arXiv
Year: 1998
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: The variation of single-particle spectral functions with doping is studied numerically within the t-J model. It is shown that corresponding self energies change from local ones at the intermediate doping to strongly nonlocal ones for a weakly doped antiferromagnet. The nonlocality shows up most clearly in the pseudogap emerging in the density of states, due to the onset of short-range antiferromagnetic correlations.
description: 4 pages, 3 Postscript figures, revtex, submitted to Phys.Rev.Lett
Small-scale motions in solar filaments as the precursors of eruptions
Creators: name: Seki, Daikichi
name: Otsuji, Kenichi
name: Isobe, Hiroaki
name: Ishii, Takako T.
name: Ichimoto, Kiyoshi
name: Shibata, Kazunari
Publisher: name: arXiv
Year: 2019
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: Filaments, the dense cooler plasma floating in the solar corona supported by magnetic fields, generally exhibit certain activations before they erupt. In our previous study (Seki et al. 2017 ), we observed that the standard deviation of the line-of-sight (LOS) velocities of the small-scale motions in a filament increased prior to its eruption. However, because that study only analyzed one event, it is unclear whether such an increase in the standard deviation of LOS velocities is common in filament eruptions. In this study, 12 filaments that vanished in Hα line center images were analyzed in a manner similar to the one in our previous work; these included two quiescent filaments, four active region filaments, and six intermediate filaments. We verified that in all the 12 events, the standard deviation of the LOS velocities increased before the filaments vanished. Moreover, we observed that the quiescent filaments had approximately 10 times longer duration of an increase in the standard deviation than the other types of filaments. We concluded that the standard deviation of the LOS velocities of the small-scale motions in a filament can potentially be used as the precursor of a filament eruption.
description: Accepted for publication in Publications of the Astronomical Society of Japan (PASJ) on 2019 February 22
Additional file 1: of Increased breast cancer risk in women with neurofibromatosis type 1: a meta-analysis and systematic review of the literature
Creators: name: Suarez-Kelly, Lorena
name: Lianbo Yu
name: Kline, David
name: Schneider, Eric
name: Agnese, Doreen
name: Carson, William
Publisher: name: figshare
Year: 2019
Subjects: Medicine
Biotechnology
Cancer
Science Policy

description: Meta-analysis of Observational Studies in Epidemiology (MOOSE) Checklist. Checklist with brief description of how research criteria of observational studies in epidemiology were handled for reporting of background, search strategy, methods, results, discussion, and conclusion in the meta-analysis. (PDF 306 kb)
Low-Temperature Saturation of the Dephasing Time and Effects of Microwave Radiation on Open Quantum Dots
Creators: name: Huibers, A. G.
name: Folk, J. A.
name: Patel, S. R.
name: Marcus, C. M.
name: Duruoz, C. I.
name: Harris,, J. S.
Publisher: name: arXiv
Year: 1999
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: The dephasing time of electrons in open semiconductor quantum dots, measured using ballistic weak localization, is found to saturate below ~ 100 mK, roughly twice the electron base temperature, independent of dot size. Microwave radiation deliberately coupled to the dots affects quantum interference indistinguishably from elevated temperature, suggesting that direct dephasing due to radiation is not the cause of the observed saturation. Coulomb blockade measurements show that the applied microwaves create sufficient source drain voltages to account for dephasing due to Joule heating.
description: related papers available at http://www.stanford.edu/group/MarcusLab/
Non-gaussian electrical fluctuations in a quasi-2d packing of metallic beads
Creators: name: Vandewalle, N.
name: Lenaerts, C.
name: Dorbolo, S.
Publisher: name: arXiv
Year: 2000
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: The electrical properties of a two-dimensional packing of metallic beads are studied. Small mechanical perturbations of the packing leads to giant electrical fluctuations. Fluctuations are found to be non-gaussian and seem to belong to Levy stable distributions. Anticorrelations have been also found for the sign of these fluctuations.
description: 6 pages, 5 figures
Miconia dispar Benth.
Creators: name: Molino, Jean-François
name: Sabatier, Daniel
name: Grenand, Pierre
name: Engel, Julien
name: Frame, Dawn
name: Delprete, Piero G.
name: Fleury, Marie
name: Odonne, Guillaume
name: Davy, Damien
name: Lucas, Eve J.
name: Martin, Claire A.
Publisher: name: Zenodo
Year: 2022
Subjects: Biodiversity
Taxonomy
Plantae
Tracheophyta
Magnoliopsida
Myrtales
Melastomataceae
Miconia
Miconia dispar

description: [1060] Miconia dispar Benth.
 Hooker’s J. Bot. Kew Gard. Misc. 2: 241 (Bentham 1850). — Acinodendron dispar (Benth.) Kuntze, Revis. Gen. Pl. 2: 951 [5 Nov. 1891] (Kuntze 1891), “ Acinodendrum ”.
 HERBARIUM DATA (FG). — 6 collections at CAY. Sel. exs.: R.A.A. Oldeman 2673.
INVENTORY DATA (FG). — 1 tree, dbh = 11.4 cm.
description: Published as part of Molino, Jean-François, Sabatier, Daniel, Grenand, Pierre, Engel, Julien, Frame, Dawn, Delprete, Piero G., Fleury, Marie, Odonne, Guillaume, Davy, Damien, Lucas, Eve J. & Martin, Claire A., 2022, An annotated checklist of the tree species of French Guiana, including vernacular nomenclature, pp. 345-903 in Adansonia (3) (3) 44 (26) on page 563, DOI: 10.5252/adansonia2022v44a26, http://zenodo.org/record/7458777
Hermite integrator for high-order mesh-free schemes
Creators: name: Yamamoto, Satoko
name: Makino, Junichiro
Publisher: name: arXiv
Year: 2018
Subjects: subject: Computational Physics (physics.comp-ph)
subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: FOS: Physical sciences

description: In most of mesh-free methods, the calculation of interactions between sample points or particles is the most time consuming. When we use mesh-free methods with high spatial orders, the order of the time integration should also be high. If we use usual Runge-Kutta schemes, we need to perform the interaction calculation multiple times per one time step. One way to reduce the number of interaction calculations is to use Hermite schemes, which use the time derivatives of the right hand side of differential equations, since Hermite schemes require smaller number of interaction calculations than RK schemes do to achieve the same order. In this paper, we construct a Hermite scheme for a mesh-free method with high spatial orders. We performed several numerical tests with fourth-order Hermite schemes and Runge-Kutta schemes. We found that, for both of Hermite and Runge-Kutta schemes, the overall error is determined by the error of spatial derivatives, for timesteps smaller than the stability limit. The calculation cost at the timestep size of the stability limit is smaller for Hermite schemes. Therefore, we conclude that Hermite schemes are more efficient than Runge-Kutta schemes and thus useful for high-order mesh-free methods for Lagrangian Hydrodynamics.
description: 22 pages, 16 figures, Accepted for publication in Pub. Astron. Soc. J
Resonant Tunneling through Linear Arrays of Quantum Dots
Creators: name: Wegewijs, M. R.
name: Nazarov, Yu. V.
Publisher: name: arXiv
Year: 1998
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: We theoretically investigate resonant tunneling through a linear array of quantum dots with subsequent tunnel coupling. We consider two limiting cases: (i) strong Coulomb blockade, where only one extra electron can be present in the array (ii) limit of almost non-interacting electrons. We develop a density matrix description that incorporates the coupling of the dots to reservoirs. We analyze in detail the dependence of the stationary current on the electron energies, tunnel matrix elements and rates, and on the number of dots. We describe interaction and localization effects on the resonant current. We analyze the applicability of the approximation of independent conduction channels. We find that this approximation is not valid when at least one of the tunnel rates to the leads is comparable to the energy splitting of the states in the array. In this case the interference of conduction processes through different channels suppresses the current.
description: 12 pages, 5 figures
Miconia egensis Cogn.
Creators: name: Molino, Jean-François
name: Sabatier, Daniel
name: Grenand, Pierre
name: Engel, Julien
name: Frame, Dawn
name: Delprete, Piero G.
name: Fleury, Marie
name: Odonne, Guillaume
name: Davy, Damien
name: Lucas, Eve J.
name: Martin, Claire A.
Publisher: name: Zenodo
Year: 2022
Subjects: Biodiversity
Taxonomy
Plantae
Tracheophyta
Magnoliopsida
Myrtales
Melastomataceae
Miconia
Miconia egensis

description: [1061] Miconia egensis Cogn.
 Fl. Bras. [Martius] 14 (4): 374 [1 Nov. 1887] (Cogniaux 1887). — Acinodendron egense (Cogn.) Kuntze, Revis. Gen. Pl. 2: 951 [5 Nov. 1891] (Kuntze 1891), “ Acinodendrum ”.
 Miconia panicularis Gleason, Bull.Torrey Bot. Club 52 (7): 384 [June 1925] (Gleason 1925).
 HERBARIUM DATA (FG). — 2 collections at CAY. Sel. exs.: R.A.A. Oldeman 1908.
 SIZE. — Up to 10 m tall (Berry et al. 1999).
description: Published as part of Molino, Jean-François, Sabatier, Daniel, Grenand, Pierre, Engel, Julien, Frame, Dawn, Delprete, Piero G., Fleury, Marie, Odonne, Guillaume, Davy, Damien, Lucas, Eve J. & Martin, Claire A., 2022, An annotated checklist of the tree species of French Guiana, including vernacular nomenclature, pp. 345-903 in Adansonia (3) (3) 44 (26) on page 563, DOI: 10.5252/adansonia2022v44a26, http://zenodo.org/record/7458777
The Two-fluid Description of a Mesoscopic Cylinder
Creators: name: Stebelski, M.
name: Lisowski, M.
name: Zipper, E.
Publisher: name: arXiv
Year: 1997
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: Quantum coherence of electrons interacting via the magnetostatic coupling and confined to a mesoscopic cylinder is discussed. The electromagnetic response of a system is studied. It is shown that the electromagnetic kernel has finite low frequency limit what implies infinite conductivity. It means that part of the electrons is in a coherent state and the system can be in general described by a two-fluid model. The coherent behavior is determind by the interplay between finite size effects and the correlations coming from the magnetostatic interactions (the interaction is considered in the mean field approximation). The related persistent currents depend on the geometry of the Fermi Surface. If the Fermi Surface has some flat portions the self-sustaining currents can be obtained. The relation of the quantum coherent state in mesoscopic cylinders to other coherent phenomena is discussed.
description: 21 pages, Latex, 4 figures, in print in Eur. Phys. J. B (Z. Phys. B)
Additional file 1: of Statin use and the risk of acute kidney injury in older adults
Creators: name: Tonelli, Marcello
name: Lloyd, Anita
name: Aminu Bello
name: James, Matthew
name: Klarenbach, Scott
name: McAlister, Finlay
name: Manns, Braden
name: Tsuyuki, Ross
name: Hemmelgarn, Brenda
Publisher: name: figshare
Year: 2019
Subjects: subject: Space Science
subject: Medicine
subject: Cell Biology
subject: Genetics
subject: FOS: Biological sciences
subject: Pharmacology
subject: Biotechnology
subject: 59999 Environmental Sciences not elsewhere classified
subject: FOS: Earth and related environmental sciences
subject: 69999 Biological Sciences not elsewhere classified
subject: 80699 Information Systems not elsewhere classified
subject: FOS: Computer and information sciences
subject: Marine Biology
subject: Computational Biology

description: Figure S1. Flow Diagram. Figure S2. Assessment of exposure to statins. Table S1. Classification of statin intensity. Table S2. Algorithm for identifying acute kidney injury from administrative data. Table S3. Baseline characteristics of statin users and non-users. (DOCX 104 kb)
Unified theory of magnetization dynamics with relativistic and nonrelativistic spin torques
Creators: name: Mondal, Ritwik
name: Berritta, Marco
name: Oppeneer, Peter M.
Publisher: name: arXiv
Year: 2018
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Spin torques play a crucial role in operative properties of modern spintronic devices. To study current-driven magnetization dynamics, spin-torque terms providing the action of spin-polarized currents have previously often been added in a phenomenological way to the Landau-Lifshitz-Gilbert equation describing the local spin dynamics, yet without derivation from fundamental principles. Here, starting from the Dirac-Kohn-Sham theory and incorporating nonlocal spin transport we rigorously derive the various spin-torque terms that appear in current-driven magnetization dynamics. In particular we obtain an extended magnetization dynamics equation that precisely contains the nonrelativistic adiabatic and relativistic nonadiabatic spin-transfer torques (STTs) of the Berger and Zhang-Li forms as well as relativistic spin-orbit torques (SOTs). We derive in addition a previously unnoticed relativistic spin-torque term and moreover show that the various obtained spin-torque terms do not appear in the same mathematical form in both the Landau-Lifshitz and Landau-Lifshitz-Gilbert equations of spin dynamics.
description: 13 pages, 1 figure
Anharmonicity of flux lattices and thermal fluctuations in layered superconductors
Creators: name: Goldin, T. Ruth
name: Horovitz, Baruch
Publisher: name: arXiv
Year: 1998
Subjects: subject: Condensed Matter (cond-mat)
subject: FOS: Physical sciences

description: We study elasticity of a perpendicular flux lattice in a layered superconductor with Josephson coupling between layers. We find that the energy contains ln(flux displacement) terms, so that elastic constants cannot be strictly defined. Instead we define effective elastic constants by a thermal average. The tilt modulus has terms with ln(T) which for weak fields, i.e. Josephson length smaller than the flux line spacing, lead to displacement square average proportional to T/ln(T). The expansion parameter indicates that the dominant low temperature phase transition is either layer decoupling at high fields or melting at low fields.
description: 15 pages, 2 eps figures, Revtex, submitted to Phys. Rev. B. Sunj-class: superconductivity
A new pregnane glycoside from Marsdenia tenacissima and its cytotoxic and NO inhibitory activities
Creators: name: Meng, Qianqian
name: Li, Zhenghui
name: Peng, Xingrong
name: Zhu, Junchen
name: Liu, Jikai
Publisher: name: Taylor & Francis
Year: 2024
Subjects: Pharmacology
Chemical Sciences not elsewhere classified
Biological Sciences not elsewhere classified
Cancer

description: The Marsdenia tenacissima, has been used as traditional Chinese medicine for six hundred years. Our chemical investigation on the stem of Marsdenia tenacissima led to the isolation of one new pregnane glycoside, namely, marsdeoside J (compound 1) and twelve known compounds. The structure of the new compound was elucidated by spectroscopic analysis including 1D and 2D NMR, HRESIMS, IR, and UV. The absolute configurations of the sugar moiety were identified by comparing the specific optical rotations and Rf values with those of the commercially available standards and the data reported in the literature. Compound 1 showed cytotoxicities against five human cancer cell lines, with IC50 values ranging from 6.5 to 18.1 μM and certain inhibitory activities on NO production.
Additional file 1: of Taking stock of 10â years of published research on the ASHA programme: examining Indiaâ s national community health worker programme from a health systems perspective
Creators: name: Scott, Kerry
name: George, Asha S.
name: Rajani R. Ved
Publisher: name: figshare
Year: 2019
Subjects: subject: Sociology
subject: FOS: Sociology
subject: Science Policy

description: Search terms on the ASHA community health worker programme. (DOCX 18 kb)
Optimizing Renewable Energy Systems with AI and Cloud Computing for Enhanced Energy Economics
Creators: name: Revathi Bommu
name: Joseph Thomas
Publisher: name: Zenodo
Year: 2023

description: In the pursuit of sustainable energy solutions, optimizing renewable energy systems is paramount. This paper explores the integration of Artificial Intelligence (AI) and Cloud Computing to enhance the efficiency and economic viability of renewable energy systems. By leveraging advanced machine learning algorithms and the scalability of cloud platforms, we aim to address key challenges in energy production, distribution, and consumption. The study examines various AI models for predictive analytics, real-time monitoring, and automated decision-making processes. Additionally, cloud computing's role in providing robust data storage, processing power, and seamless communication between distributed energy resources is analyzed. The findings suggest that the synergy between AI and cloud technologies can significantly improve the operational performance and economic outcomes of renewable energy systems. This optimization leads to more accurate demand forecasting, reduced operational costs, and increased energy sustainability, ultimately contributing to a more resilient and efficient energy economy.
Electron energy spectrum and oscillator strengths of quantum transitions in double quantum ring nanostructure driven by electric field
Creators: name: Makhanets, O. M.
name: Gutsul, V. I.
name: Kuchak, A. I.
Publisher: name: arXiv
Year: 2018
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: The effect of homogeneous electric field on the energy spectrum, wave functions of electron and oscillator strengths of intra-band quantum transitions in a double cylindrical quantum ring (GaAs/Al$_{x}$Ga$_{1-x}$As) is studied within the approximations of effective mass and rectangular potentials. The calculations are performed using the method of expansion of quasiparticle wave function over a complete set of cylindrical wave functions obtained as exact solutions of Schrödinger equation for an electron in a nanostructure without electric field. It is shown that the electric field essentially affects the electron localization in the rings of a nanostructure. Herein, the electron energies and oscillator strengths of intra-band quantum transitions non-monotonously depend on the intensity of electric field.
description: 9 pages, 5 figures
Nuclear spin-spin coupling in La_{2-x}Sr_{x}CuO_{4} studied by stimulated echo decay
Creators: name: Fujiyama, S.
name: Takigawa, M.
name: Ueda, Y.
name: Suzuki, T.
name: Yamada, N.
Publisher: name: arXiv
Year: 1999
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: We have performed copper NQR experiments in high temperature superconductors YBa_{2}Cu_{4}O_{8}, YBa_{2}Cu_{3}O_{7}, and La_{2-x}Sr_{x}CuO_{4} (x=0.12 and 0.15), using the stimulated echo technique. The stimulated echo intensity is analyzed by a model that includes the spin-lattice relaxation process (T_ {1 }-process) and the fluctuating local field due to nuclear spin-spin coupling. The model gives quantitative account of the experimental results in Y-based compounds using the known values of 1/T_{1} and 1/T_{2G}, the gaussian decay rate of the spin echo intensity. The same model applied to LSCO enables us to extract the value of T_{2G}. Our results indicate that T_{1}T/T_{2G} is independent of temperature, implying that the dynamic exponent is one in La_{2-x}Sr_{x}CuO_{4}.
description: 14 pages, 11 fugures, The bibliography field is corrected
Miconia eriodonta DC.
Creators: name: Molino, Jean-François
name: Sabatier, Daniel
name: Grenand, Pierre
name: Engel, Julien
name: Frame, Dawn
name: Delprete, Piero G.
name: Fleury, Marie
name: Odonne, Guillaume
name: Davy, Damien
name: Lucas, Eve J.
name: Martin, Claire A.
Publisher: name: Zenodo
Year: 2022
Subjects: Biodiversity
Taxonomy
Plantae
Tracheophyta
Magnoliopsida
Myrtales
Melastomataceae
Miconia
Miconia eriodonta

description: [1063] Miconia eriodonta DC.
 Prodr. [A. P. de Candolle] 3: 185 [mid Mar. 1828] (Candolle 1828). — Acinodendron eriodontum (DC.) Kuntze, Revis. Gen. Pl. 2: 951 [5 Nov. 1891] (Kuntze 1891), “ Acinodendrum ”.
 Miconia eriodonta var. oblongifolia DC., Prodr. [A. P. de Candolle] 3: 185 [mid Mar. 1828] (Candolle 1828).
 Miconia bracteolaris Naudin, Ann. Sci. Nat., Bot. sér. 3, 16: 150 (Naudin 1851).
 Miconia bracteolaris var. cardiophora Naudin, Ann. Sci. Nat., Bot. sér. 3, 16: 151 (Naudin 1851).
VERNACULAR NAMES. — Wp: sikɨsĩ.
 HERBARIUM DATA (FG). — 27 collections at CAY. Sel. exs.: P.A. Poiteau s.n. (holo-, G[G00300234]; iso-, G-DC[G00310952]).
INVENTORY DATA (FG). — 1 tree, dbh = 14.5 cm.
description: Published as part of Molino, Jean-François, Sabatier, Daniel, Grenand, Pierre, Engel, Julien, Frame, Dawn, Delprete, Piero G., Fleury, Marie, Odonne, Guillaume, Davy, Damien, Lucas, Eve J. & Martin, Claire A., 2022, An annotated checklist of the tree species of French Guiana, including vernacular nomenclature, pp. 345-903 in Adansonia (3) (3) 44 (26) on page 563, DOI: 10.5252/adansonia2022v44a26, http://zenodo.org/record/7458777
Domino effect for world market fluctuations
Creators: name: Vandewalle, N.
name: Boveroux, Ph.
name: Brisbois, F.
Publisher: name: arXiv
Year: 2000
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Statistical Finance (q-fin.ST)
subject: FOS: Physical sciences
subject: FOS: Economics and business

description: In order to emphasize cross-correlations for fluctuations in major market places, series of up and down spins are built from financial data. Patterns frequencies are measured, and statistical tests performed. Strong cross-correlations are emphasized, proving that market moves are collective behaviors.
description: 8 pages, 5 figures, submitted to EPJB
Additional file 2: of A new phototherapy regimen during winter as an add-on therapy, coupled with oral vitamin D supplementation, for the long-term control of atopic dermatitis: study protocol for a multicentre, randomized, crossover, pragmatic trial – the PRADA trial
Creators: name: Droitcourt, Catherine
name: Barbarot, Sébastien
name: Maruani, Annabel
name: Darrieux, Laure
name: Misery, Laurent
name: Brenaut, Emilie
name: Adamski, Henri
name: Chabbert, Cécile
name: Vermersch, Annie
name: Weiborn, Marie
name: Seneschal, Julien
name: Taïeb, Alain
name: Plantin, Patrice
name: Maillard, Hervé
name: Phan, Alice
name: Skowron, François
name: Viguier, Manuelle
name: Staumont-Salle, Delphine
name: Nosbaum, Audrey
name: Soria, Angèle
name: Barbaud, Annick
name: Oger, Emmanuel
name: Dupuy, Alain
Publisher: name: figshare
Year: 2019
Subjects: subject: Medicine
subject: Sociology
subject: FOS: Sociology
subject: Cancer
subject: Science Policy
subject: 110309 Infectious Diseases
subject: FOS: Health sciences

description: SPIRIT 2013 checklist: recommended items to address in a clinical trial protocol and related documents. (DOC 98 kb)
Freeze-in leptogenesis with 3 right-handed neutrinos
Creators: name: Lucente, Michele
name: Abada, Asmaa
name: Arcadi, Giorgio
name: Domcke, Valerie
name: Drewes, Marco
name: Klaric, Juraj
Publisher: name: arXiv
Year: 2018
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We provide the first systematic study of the viable parameter space for leptogenesis in the type-I seesaw model with three right-handed neutrinos whose Majorana masses lie below the electroweak scale. We highlight the very rich phenomenology of this scenario and discuss several mechanisms that can help to enhance the baryon asymmetry of the Universe. This allows for much larger heavy neutrino mixing angles than in the minimal scenario with two heavy neutrinos, resulting in solutions that can be probed with the LHC and other experiments. The light neutrino masses can be protected from radiative corrections by an approximate symmetry related to generalised lepton number.
description: 4 pages, 1 figure. To appear in the proceedings of the 39th International Conference on High Energy Physics (ICHEP2018), 4-11 July 2018 in Seoul, Korea
Miconia fragilis Naudin
Creators: name: Molino, Jean-François
name: Sabatier, Daniel
name: Grenand, Pierre
name: Engel, Julien
name: Frame, Dawn
name: Delprete, Piero G.
name: Fleury, Marie
name: Odonne, Guillaume
name: Davy, Damien
name: Lucas, Eve J.
name: Martin, Claire A.
Publisher: name: Zenodo
Year: 2022
Subjects: Biodiversity
Taxonomy
Plantae
Tracheophyta
Magnoliopsida
Myrtales
Melastomataceae
Miconia
Miconia fragilis

description: [1064] Miconia fragilis Naudin
 Ann. Sci. Nat., Bot. sér. 3, 16: 171 (Naudin 1851).
 Acinodendron naudinii Kuntze, Revis. Gen. Pl. 2: 949 [5 Nov. 1891] (Kuntze 1891), “ Acinodendrum ”.
NOTE. — Known only from the Guiana Shield.
VERNACULAR NAMES. — Pa: ã-seiminio-priyo, ã-seiminio-priyu, kamata-kamwi • Ka: mainyapo.
 HERBARIUM DATA (FG). — 26 collections at CAY. Sel. exs.: J. Martin s.n. (holo-, P[P01903903]; iso-, B[not seen, photo F neg. N° 17062], BR[BR0000005207749], F[V0063766F], FI[FI004734], P[P01903904, P01903905], US [00120979]).
INVENTORY DATA (FG). — 21 trees in 12 plots; Fmax <1 %; dbhinv = 60 cm.
description: Published as part of Molino, Jean-François, Sabatier, Daniel, Grenand, Pierre, Engel, Julien, Frame, Dawn, Delprete, Piero G., Fleury, Marie, Odonne, Guillaume, Davy, Damien, Lucas, Eve J. & Martin, Claire A., 2022, An annotated checklist of the tree species of French Guiana, including vernacular nomenclature, pp. 345-903 in Adansonia (3) (3) 44 (26) on page 564, DOI: 10.5252/adansonia2022v44a26, http://zenodo.org/record/7458777
Do interactions increase or reduce the conductance of disordered electrons? It depends!
Creators: name: Vojta, Thomas
name: Epperlein, Frank
name: Schreiber, Michael
Publisher: name: arXiv
Year: 1998
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We investigate the influence of electron-electron interactions on the conductance of two-dimensional disordered spinless electrons. By using an efficient numerical method which is based on exact diagonalization in a truncated basis of Hartree-Fock states we are able to determine the exact low-energy properties of comparatively large systems in the diffusive as well as in the localized regimes. We find that weak interactions increase the d.c. conductance in the localized regime while they decrease the d.c. conductance in the diffusive regime. Strong interactions always decrease the conductance. We also study the localization of single-particle excitations close to the Fermi energy which turns out to be only weakly influenced by the interactions.
description: final version as publsihed, 4 pages REVTEX, 6 EPS figures included
Nonequilibrium Josephson effect in mesoscopic ballistic multiterminal SNS junctions
Creators: name: Samuelsson, P.
name: Lantz, J.
name: Shumeiko, V. S.
name: Wendin, G.
Publisher: name: arXiv
Year: 1999
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: We present a detailed study of nonequilibrium Josephson currents and conductance in ballistic multiterminal SNS-devices. Nonequilibrium is created by means of quasiparticle injection from a normal reservoir connected to the normal part of the junction. By applying a voltage at the normal reservoir the Josephson current can be suppressed or the direction of the current can be reversed. For a junction longer than the thermal length, $L\ggξ_T$, the nonequilibrium current increases linearly with applied voltage, saturating at a value equal to the equilibrium current of a short junction. The conductance exhibits a finite bias anomaly around $eV \sim \hbar v_F/L$. For symmetric injection, the conductance oscillates $2π$-periodically with the phase difference $ϕ$ between the superconductors, with position of the minimum ($ϕ=0$ or $π$) dependent on applied voltage and temperature. For asymmetric injection, both the nonequilibrium Josephson current and the conductance becomes $π$-periodic in phase difference. Inclusion of barriers at the NS-interfaces gives rise to a resonant behavior of the total Josephson current with respect to junction length with a period $\sim λ_F$. Both three and four terminal junctions are studied.
description: 21 pages, 19 figures, submitted to Phys. Rev. B
Avalanches of popping bubbles in collapsing foams
Creators: name: Vandewalle, N.
name: Lentz, J. F.
name: Dorbolo, S.
name: Brisbois, F.
Publisher: name: arXiv
Year: 2000
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: We report acoustic experiments on foam systems. We have recorded the sound emitted by crackling cells during the collapsing of foams. The sound pattern is then analyzed using classical methods of statistical physics. Fundamental processes at the surface of the collapsing foam are found. In particular, size is not a relevant parameter for exploding bubbles.
description: 8 pages, 4 figures, submitted for publication
Design of Hydrogen Passenger Aircraft – How much "Zero-Emission" is Possible?
Creators: name: Scholz, Dieter
Publisher: name: Zenodo
Year: 2020
Subjects: aviation
aircraft
propulsion
fuel
energie
design
passenger
hydrogen
LH2
cryoplane
emissions
CO2
NOx
AIC
contrails
cirrus
clouds
Airbus
concept plane
LCA
life cycle assessment
DOC
ZEROe
aerolectures2020
2020

description: Purpose - 1.) Presentation and evaluation of selected past and present design projects for passenger aircraft with liquid hydrogen (LH2) propulsion. LH2 aircraft are also referred to as cryoplanes. 2.) Research question: Can cryoplanes be "zero emission"? 3.) Information for everyone interested. ---
 Methodology - Revisiting of HAW Hamburg past research projects. Literature review. Combination of given knowledge to new insight. ---
 Findings - An A319 cabin fits almost into a LH2 cryoplane based on an A321 fuselage. Such a design limits investment into new aircraft. It needs 40% more energy, 20% more DOC and shows about 27% less environmental burden (considering emissions and energy based on a LCA) if(!) hydrogen is from electrolysis and electricity from renewable sources. However, since electricity has to be taken from the grid with given energy mix, a cryoplane is as polluting as a kerosene plane, but has the advantage that it burdens future generations less due to its predominantly short term non-CO2 emission effects. Renewable energy will by far not be sufficient to maintain flying at the level we know today (2019). It is therefore paramount to reduce flying as it happened already during the Corona pandemic. Nevertheless, the aviation industry maintains the physically implausible "zero emission" goal based on advanced technology, because otherwise the credo "aviation needs growth" will not convince politics and society and could result in restrictions. This is why industry cannot enter a technical debate about: "How much 'zero emission' is possible?". Maintaining the extreme position of "zero emission" by means of a hydrogen powered aircraft contributed further to truth decays in the aviation industry. Notwithstanding these problems, we need to find a sincere way to communicate while we abide in ethical standards like "do not lie". ---
 Practical implications - Results are presented in a pragmatic way. ---
 Social implications - A discussion based on facts is facilitated beyond scientific circles and can build up political pressure to initiate change in aviation into a direction which is really ecological. ---
 Originality/value - A presentation spanning from in depth aircraft design to social implications is otherwise missing, but most probably needed if we want to avoid a knowledge monopoly with the aviation industry that dictates the rest of society what has to be done.
description: Hamburg Aerospace Lecture Series --- Collection of Presentations --- http://www.AeroLectures.de
On the self-trapping problem of electrons or excitons in one dimension
Creators: name: Wellein, G.
name: Fehske, H.
Publisher: name: arXiv
Year: 1997
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: We present a detailed numerical study of the one-dimensional Holstein model with a view to understanding the self-trapping process of electrons or excitons in crystals with short-range particle-lattice interactions. Applying a very efficient variational Lanczos method, we are able to analyze the ground-state properties of the system in the weak-- and strong-coupling, adiabatic and non-adiabatic regimes on lattices large enough to eliminate finite-size effects. In particular, we obtain the complete phase diagram and comment on the existence of a critical length for self-trapping in spatially restricted one-dimensional systems. In order to characterize large and small polaron states we calculate self-consistently the lattice distortions and the particle-phonon correlation functions. In the strong-coupling case, two distinct types of small polaron states are shown to be possible according to the relative importance of static displacement field and dynamic polaron effects. Special emphasis is on the intermediate coupling regime, which we also study by means of direct diagonalization preserving the full dynamics and quantum nature of phonons. The crossover from large to small polarons shows up in a strong decrease of the kinetic energy accompanied by a substantial change in the optical absorption spectra. We show that our numerical results in all important limiting cases reveal an excellent agreement with both analytical perturbation theory predictions and very recent density matrix renormalization group data.
description: submitted to Phys. Rev. B
Miconia gratissima Benth. ex Triana
Creators: name: Molino, Jean-François
name: Sabatier, Daniel
name: Grenand, Pierre
name: Engel, Julien
name: Frame, Dawn
name: Delprete, Piero G.
name: Fleury, Marie
name: Odonne, Guillaume
name: Davy, Damien
name: Lucas, Eve J.
name: Martin, Claire A.
Publisher: name: Zenodo
Year: 2022
Subjects: Biodiversity
Taxonomy
Plantae
Tracheophyta
Magnoliopsida
Myrtales
Melastomataceae
Miconia
Miconia gratissima

description: [1065] Miconia gratissima Benth. ex Triana
 Trans. Linn. Soc. London 28 (1): 101 [“1873” publ. 8 Dec. 1871 - 13 Jan. 1872] (Triana 1871-1872). — Acinodendron gratissimum (Benth. ex Triana) Kuntze, Revis. Gen. Pl. 2: 951 [5 Nov. 1891] (Kuntze 1891), “ Acinodendrum ”.
 HERBARIUM DATA (FG). — A single collection, J.-J. de Granville B-4760.
 SIZE. — Up to 10 m tall (Wurdack et al. 1993).
description: Published as part of Molino, Jean-François, Sabatier, Daniel, Grenand, Pierre, Engel, Julien, Frame, Dawn, Delprete, Piero G., Fleury, Marie, Odonne, Guillaume, Davy, Damien, Lucas, Eve J. & Martin, Claire A., 2022, An annotated checklist of the tree species of French Guiana, including vernacular nomenclature, pp. 345-903 in Adansonia (3) (3) 44 (26) on page 564, DOI: 10.5252/adansonia2022v44a26, http://zenodo.org/record/7458777
Reactive Turbulent Flow in Low-Dimensional, Disordered Media
Creators: name: Deem, Michael W.
name: Park, Jeong-Man
Publisher: name: arXiv
Year: 1998
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: We analyze the reactions $A+A \to \emptyset$ and $A + B \to \emptyset$ occurring in a model of turbulent flow in two dimensions. We find the reactant concentrations at long times, using a field-theoretic renormalization group analysis. We find a variety of interesting behavior, including, in the presence of potential disorder, decay rates faster than that for well-mixed reactions.
description: 6 pages, 4 figures. To appear in Phys. Rev. E
L’identità di Gogol’ a partire dall’invasione su larga scala dell’Ucraina Gogol’s identity since the full-scale invasion of Ukraine
Creators: name: Cavazzoni, Anna
Publisher: name: Nazioni e Regioni
Year: 2024
Subjects: Gogol’; Ucraina; nazionalismo ucraino; nazionalismo russo; decolonizzazione; Russia; canone letterario; Gogol’; Ukraine; Ukrainian nationalism; Russian nationalism; decolonization; Russia; literary canon

description: L’articolo si propone di analizzare il discorso sull’identità ucraina di Gogol’ nella pubblicistica ucraina a partire dall’inizio dell’invasione su larga scala dell’Ucraina. Gogol’, figura fortemente ibrida e simbolica della condizione di ‘piccolo-russità’, è ancora al centro di un acceso dibattito culturale. La questione di Gogol’ si intreccia alla formazione delle identità nazionali russa e polacca e al concetto di canone nazionale. L’inserimento o meno di Gogol’ all’interno del canone letterario ucraino esprime l’intenzione, da parte ucraina, di rendere definiti i confini tra le due nazionalità.

 

The article’s aim is to analyse the discourse on Gogol’s Ukrainian identity in the Ukrainian press since the beginning of the full-scale invasion of Ukraine. Gogol’, a remarkably hybrid figure symbolizing the condition of ‘Little-Russianness’, is still at the centre of a heated cultural debate. Gogol’s question is intertwined with the formation of Russian and Polish national identity and with the concept of national canon. Whether or not to consider Gogol’ as part of the Ukrainian literary canon expresses the intention of the Ukrainian side to clearly demarcate the borders between the two nationalities. 
description: Nazioni e Regioni, N. 21-22 (2023)
Statistical Mechanics of Torque Induced Denaturation of DNA
Creators: name: Cocco, Simona
name: Monasson, Remi
Publisher: name: arXiv
Year: 1999
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Biological Physics (physics.bio-ph)
subject: Quantitative Biology (q-bio)
subject: FOS: Physical sciences
subject: FOS: Biological sciences

description: A unifying theory of the denaturation transition of DNA, driven by temperature T or induced by an external mechanical torque Gamma is presented. Our model couples the hydrogen-bond opening and the untwisting of the helicoidal molecular structure. We show that denaturation corresponds to a first-order phase transition from B-DNA to d-DNA phases and that the coexistence region is naturally parametrized by the degree of supercoiling sigma. The denaturation free energy, the temperature dependence of the twist angle, the phase diagram in the T,Gamma plane and isotherms in the sigma, Gamma plane are calculated and show a good agreement with experimental data.
description: 5 pages, 3 figures, model improved
Asymmetric exclusion process with next-nearest-neighbor interaction: some comments on traffic flow and a nonequilibrium reentrance transition
Creators: name: Antal, T.
name: Schütz, G. M.
Publisher: name: arXiv
Year: 2000
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: We study the steady-state behavior of a driven non-equilibrium lattice gas of hard-core particles with next-nearest-neighbor interaction. We calculate the exact stationary distribution of the periodic system and for a particular line in the phase diagram of the system with open boundaries where particles can enter and leave the system. For repulsive interactions the dynamics can be interpreted as a two-speed model for traffic flow. The exact stationary distribution of the periodic continuous-time system turns out to coincide with that of the asymmetric exclusion process (ASEP) with discrete-time parallel update. However, unlike in the (single-speed) ASEP, the exact flow diagram for the two-speed model resembles in some important features the flow diagram of real traffic. The stationary phase diagram of the open system obtained from Monte Carlo simulations can be understood in terms of a shock moving through the system and an overfeeding effect at the boundaries, thus confirming theoretical predictions of a recently developed general theory of boundary-induced phase transitions. In the case of attractive interaction we observe an unexpected reentrance transition due to boundary effects.
description: 12 pages, Revtex, 7 figures
Polarised radio emission associated with HESS J1912+101
Creators: name: Reich, W.
name: Sun, X. H.
Publisher: name: arXiv
Year: 2018
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: The shell-type TeV source HESS J1912+101 was tentatively identified as an old supernova remnant, but is missing counterparts at radio and other frequencies. We analysed the Sino-German Urumqi $λ$6 cm survey and the Effelsberg $λ$11 cm and $λ$21 cm surveys to identify radio emission from HESS J1912+101 to clarify the question of a supernova origin. We find a partial shell of excessive polarisation at $λ$6 cm at the periphery of HESS J1912+101. At $λ$11 cm, its polarised emission is faint and suffers from depolarisation, while at $λ$21 cm, no related polarisation is seen. We could not separate the shell's total intensity signal from the confusing intense diffuse emission from the inner Galactic plane. However, a high-percentage polarisation of the shell's synchrotron emission is indicated. Our results support earlier suggestions that HESS J1912+101 is an old supernova remnant. The synchrotron emission is highly polarised, which is typical for evolved supernova remnants of low surface-brightness.
description: 11 pages, 7 figures, accepted by RAA
Miconia kappleri Naudin
Creators: name: Molino, Jean-François
name: Sabatier, Daniel
name: Grenand, Pierre
name: Engel, Julien
name: Frame, Dawn
name: Delprete, Piero G.
name: Fleury, Marie
name: Odonne, Guillaume
name: Davy, Damien
name: Lucas, Eve J.
name: Martin, Claire A.
Publisher: name: Zenodo
Year: 2022
Subjects: Biodiversity
Taxonomy
Plantae
Tracheophyta
Magnoliopsida
Myrtales
Melastomataceae
Miconia
Miconia kappleri

description: [1068] Miconia kappleri Naudin
 Ann. Sci. Nat., Bot. sér. 3, 16: 162 (Naudin 1851), “ Kapplerii ”. — Acinodendron kappleri (Naudin) Kuntze, Revis. Gen. Pl. 2: 951 [5 Nov. 1891] (Kuntze 1891), “ Acinodendrum ”.
 NOTE. — Auguste Kappler is known as a collector of plants from Suriname, not from French Guiana. Yet, as the original label of the type indicates (“ Ad fl. Carouany ”), he collected it near the Acarouany, a small French Guianan river located a few kilometers from the border with Suriname.
VERNACULAR NAMES. — Wp: amutu’ɨ, mutu’ɨ, wamutu’ɨ.
 HERBARIUM DATA (FG). — 14 collections at CAY. Sel. exs.: A. Kappler 1675 (holo-, P[P02442360]; iso-, GOET[GOET008001], P[P02442361, P02442362]).
 SIZE. — Up to 10 m tall (Wurdack et al. 1993).
description: Published as part of Molino, Jean-François, Sabatier, Daniel, Grenand, Pierre, Engel, Julien, Frame, Dawn, Delprete, Piero G., Fleury, Marie, Odonne, Guillaume, Davy, Damien, Lucas, Eve J. & Martin, Claire A., 2022, An annotated checklist of the tree species of French Guiana, including vernacular nomenclature, pp. 345-903 in Adansonia (3) (3) 44 (26) on page 564, DOI: 10.5252/adansonia2022v44a26, http://zenodo.org/record/7458777
Interference in a Prototype of a two-dimensional Ion Trap Array Quantum Simulator
Creators: name: Hakelberg, Frederick
name: Kiefer, Philip
name: Wittemer, Matthias
name: Warring, Ulrich
name: Schaetz, Tobias
Publisher: name: arXiv
Year: 2018
Subjects: subject: Quantum Physics (quant-ph)
subject: Atomic Physics (physics.atom-ph)
subject: FOS: Physical sciences

description: Quantum mechanics dominates various effects in modern research from miniaturizing electronics, up to potentially ruling solid-state physics, quantum chemistry and biology. To study these effects experimental quantum systems may provide the only effective access. Seminal progress has been achieved in a variety of physical platforms, highlighted by recent applications. Atomic ions are known for their unique controllability and are identical by nature, as evidenced, e.g., by performing among the most precise atomic clocks and providing the basis for one-dimensional simulators. However, controllable, scalable systems of more than one dimension are required to address problems of interest and to reach beyond classical numerics with its powerful approximative methods. Here we show, tunable, coherent couplings and interference in a two-dimensional ion microtrap array, completing the toolbox for a reconfigurable quantum simulator. Previously, couplings and entangling interactions between sites in one-dimensional traps have been realized, while coupling remained elusive in microtrap approaches. Our architecture is based on well isolatable ions as identical quantum entities hovering above scalable CMOS chips. In contrast to other multi-dimensional approaches, it allows individual control in arbitrary, even non-periodic, lattice structures. Embedded control structures can exploit the long-range Coulomb interaction to configure synthetic, fully connected many-body systems to address multi-dimensional problems.
Slightly Superexponential Parameterized Problems
Creators: name: Lokshtanov, Daniel
name: Marx, Daniel
name: Saurabh, Saket
Publisher: name: arXiv
Year: 2019
Subjects: subject: Computational Complexity (cs.CC)
subject: Data Structures and Algorithms (cs.DS)
subject: FOS: Computer and information sciences

description: A central problem in parameterized algorithms is to obtain algorithms with running time $f(k)\cdot n^{O(1)}$ such that $f$ is as slow growing function of the parameter $k$ as possible. In particular, a large number of basic parameterized problems admit parameterized algorithms where $f(k)$ is single-exponential, that is, $c^k$ for some constant $c$, which makes aiming for such a running time a natural goal for other problems as well. However there are still plenty of problems where the $f(k)$ appearing in the best known running time is worse than single-exponential and it remained ``slightly superexponential'' even after serious attempts to bring it down. A natural question to ask is whether the $f(k)$ appearing in the running time of the best-known algorithms is optimal for any of these problems. In this paper, we examine parameterized problems where $f(k)$ is $k^{O(k)}=2^{O(k\log k)}$ in the best known running time and for a number of such problems, we show that the dependence on $k$ in the running time cannot be improved to single exponential. (See paper for the longer abstract.)