cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Gerwasia pittieriana
Creators: name: Hernandez, J. R.
name: Piepenbring, M.
name: Rios, M. B. V.
Publisher: name: Zenodo
Year: 2007
Subjects: Biodiversity
Taxonomy
Fungi
Basidiomycota
Pucciniomycetes
Pucciniales
Phragmidiaceae
Gerwasia
Gerwasia pittieriana

description: Gerwasia pittieriana (Henn.) Leon-Gall. and Cummins
on Rubus sp. Panama, Chiriqui Province, Boquete, 8°46.691N, 82°25.968'W, 26 Nov. 2004, leg. J.R. Hernandez and M. Vega Rios 2004-123, II (BPI 864110).
G. pittieriana was reported from Costa Rica and Mexico on species of Rubus (Farr et al. 2004). This is the first report of G. pittieriana from Panama.
description: Published as part of Hernandez, J. R., Piepenbring, M. & Rios, M. B. V., 2007, A new species, Dicheirinia panamensis, and new records of rust fungi from Panama., pp. 81-91 in Mycol Progress 6 on page 88
Buoyancy driven rotating boundary currents
Creators: name: Yecko, P. A.
name: Meacham, S. P.
Publisher: name: arXiv
Year: 1997
Subjects: subject: Fluid Dynamics (physics.flu-dyn)
subject: Atmospheric and Oceanic Physics (physics.ao-ph)
subject: FOS: Physical sciences

description: The structure of boundary currents formed from intermediately dense water introduced into a rotating, stably stratified, two-layer environment is investigated in a series of laboratory experiments, performed for Froude numbers ranging from 0.01 to 1. The thickness and streamwise velocity profiles in quasi-steady currents are measured using a pH activated tracer (thymol blue) and found to compare favorably to simplified analytic solutions and numerical models. Currents flowing along sloping boundaries in a stratified background exhibit robust stability at all experimental Froude numbers. Such stability is in sharp contrast to the unequivocal instability of such currents flowing against vertical boundaries, or of currents flowing along slopes in a uniform background. The presence of a variety of wave mechanisms in the ambient medium might account for the slower and wider observed structures and the stability of the currents, by effecting the damping of disturbances through wave radiation.
description: 9 pages with 2 figures to appear in Ann NYAS "Long range effects in physics and astrophysics"
Additional file 1: of Characteristics of Relative Age Effects and Anthropometric Data in Japanese Recreational and Elite Male Junior Baseball Players
Creators: name: Katsumata, Yoichi
name: Omuro, Kohei
name: Naotoshi Mitsukawa
name: Nakata, Hiroki
Publisher: name: figshare
Year: 2018
Subjects: subject: Medicine
subject: Molecular Biology
subject: Sociology
subject: FOS: Sociology
subject: 69999 Biological Sciences not elsewhere classified
subject: FOS: Biological sciences
subject: Developmental Biology
subject: Science Policy

description: The survey form ( in Japanese). (PDF 123 kb)
Phase Changes of Electromagnetic Oceanic Tidal Signals
Creators: name: Saynisch‐Wagner, J.
name: Petereit, J.
name: Irrgang, C.
name: Thomas, M.
Publisher: name: FID GEO
Year: 2020

description: Over the last years, the number of studies that investigate or utilize the electromagnetic (EM) signals generated by ocean tides is steadily growing. However, the majority of these studies focuses on the amplitudes of EM tidal signals. This study investigates the phases of EM tidal signals and their changes. Twenty‐six years of monthly observation‐based datasets of tidal velocities, geomagnetic field, and oceanic conductivity are fed into an EM induction solver to generate varying EM tidal signals. The sensitivities of the resulting EM signals are analyzed by forbidding or allowing the input datasets to vary in time. We report on the phase's sensitivities with respect to changes in the EM properties, that is, secular variation of the geomagnetic field and changes in oceanic conductivity. Distinct temporal behavior and distinct geographic pattern for the two sensitivities can be reported. In general, apart from global phase shifts of 3–5 degrees, concentrated areas with phase shifts of up to 45 degrees occur all over the globe, over the oceans, for example, Arctic and Atlantic Ocean, as well as on coastal land regions, for example, Southwest Greenland and Japan. Very locally, phase shifts of 90 degree or higher occur.
description: Key Points: Electromagnetic tidal signals show significant spatiotemporal phase changes. Annual and monthly phase anomalies are found to be of oceanic origin. Decadal transient phase anomalies are generated by secular variation and changing oceanic conductivity.
Lepton Flavor Violating Decays of $B$ and $K$ Mesons in Models with Extended Gauge Group
Creators: name: Fayyazuddin
name: Aslam, M. Jamil
name: Lu, Cai-Dian
Publisher: name: arXiv
Year: 2018
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: Lepton Flavor Violating (LFV) decays are forbidden in the Standard Model (SM) and to explore them one has to go beyond it. The flavor changing neutral current induced Lepton Flavor Conserving and LFV decays of $K$ and $B$ mesons are discussed in the gauge group $G = SU(2)_L\times U(1)_{Y_1}\times SU(2)_X$. The lepto-quark $X^{\pm 2/3}_μ$ corresponding to gauge group $ SU(2)_X$ allows the quark-lepton transitions and hence giving a framework to construct the effective Lagrangian for the LFV decays. The mass of lepto-quark $m_{X}$ provides a scale at which the gauge group $G$ is broken to the SM gauge group. Using the most stringent experimental limit $\mathcal{B}(K^{0}_{L}\to μ^{\mp}e^{\pm}) < 1.7 \times 10^{-12}$, the upper bound on the effective coupling constant $(\frac{G_{X}}{G_F})^2 < 1.1 \times 10^{-10}$ is obtained for certain pairing of lepton and quark generations in the representation $(2, \bar{2})$ of the group $G$. Later, the effective Lagrangian for the LFV meson decays for the gauge group $G = \left[SU(2)_{L}\times SU(2)_{R}\times U(1)_{Y_1^{\prime}}\right]\times SU(2)_{X}$ is constructed. Using $\mathcal{B}(K^{-} \to π^{-}ν\barν) = (1.7 \pm 1.1)\times 10^{-10}$, the bound on the ratio of effective couplings is obtained to be $\left(\frac{G_{X}}{G_{F}}\right)^2 < 10^{-10}$. A number of decay modes are discussed which provide a promising area to test this model in the current and future particle physics experiments.
description: 19 pages, No figures, A version accepted for publication in International Journal of Modern Physics A
Phakopsora meibomiae
Creators: name: Hernandez, J. R.
name: Piepenbring, M.
name: Rios, M. B. V.
Publisher: name: Zenodo
Year: 2007
Subjects: Biodiversity
Taxonomy
Fungi
Basidiomycota
Pucciniomycetes
Pucciniales
Phakopsoraceae
Phakopsora
Phakopsora meibomiae

description: Phakopsora meibomiae (Arthur) Arthur
on Desmodium sp. Panama, Cocle Province, Aguadulce, 8°13.227'N, 80°36.558'W, 24 Nov. 2004, leg. J.R. Hernandez 2004- 084, II (BPI 864113). On P multiflorus var. coccineus (L.) DC. Panama, Chiriqui Province, Dominical, 8°40.455'N, 82°48.013'W, 25 Nov. 2004, leg. J.R. Hernandez 2004-114, II (BPI 864114). Identification was confirmed using realtime PCR (Frederick et al. 2002).
P. meibomiae was reported from Mexico to Argentina and the Caribbean; in addition, there are several unconfirmed reports from out of the Americas (Farr et al. 2004). This is the first report of P. meibomiae from Panama.
description: Published as part of Hernandez, J. R., Piepenbring, M. & Rios, M. B. V., 2007, A new species, Dicheirinia panamensis, and new records of rust fungi from Panama., pp. 81-91 in Mycol Progress 6 on page 88
Crustal Porosity of Lunar Impact Basins
Creators: name: Wahl, D.
name: Wieczorek, M. A.
name: Wünnemann, K.
name: Oberst, J.
Publisher: name: FID GEO
Year: 2020

description: Lateral variations in bulk density and porosity of the upper lunar highland crust are mapped using a high‐resolution Gravity Recovery and Interior Laboratory (GRAIL) gravity field model and Lunar Reconnaissance Orbiter (LRO) derived topography. With a higher spatial resolution gravity model than previous studies, we focus on individual impact basins with diameters greater than 200 km. The bulk density of the upper few kilometers of the lunar crust is estimated by minimizing the correlation between the topography and Bouguer gravity at short wavelengths that are unaffected by lithospheric flexure. Porosity is then derived using estimates of the grain density obtained from remote sensing data of the surface composition. The near surface crust in proximity to many large basins is found to exhibit distinct radial porosity signatures. Low porosities are found in the basin centers within the peak ring, whereas high porosities are identified near and just exterior to the main rim. The larger basins exhibit a more pronounced porosity signature than the smaller basins. Though the number of basins investigated in this study is limited, younger basins appear to be associated with the largest amplitude variations in porosity. For basins with increasing age the magnitude of the porosity variations decreases.
description: Plain Language Summary: The gravity field surrounding an impact basin allows us to investigate the properties of the underlying crust and to better understand how craters form and evolve. In the center of the largest lunar craters, the impact basins, positive mass anomalies can be found that are caused by the excavation of crustal materials and the uplift of the mantle during formation. When using only the short wavelength portion of the gravity field, signals from these deeper regions are masked, and this allows us to estimate both the density and porosity of the upper crust. We investigated the crustal porosity of impact basins located in the lunar highlands, with diameters larger than 200 km. Many of these basins reveal similar porosity signatures, having low porosities in their center and high porosities near the crater rim. For the most pristine basins, the magnitude of the porosity variations increases with increasing basin size. Furthermore, the crustal porosity is influenced by the formation age of a basin, where the older basins have more muted signatures than younger basins.
description: Key Points: The bulk density and porosity of the upper highland crust are revisited using a high‐resolution GRAIL gravity field model in combination with LOLA topography and independently estimated grain densities. For many impact basins, porosity is reduced within their peak ring and increased near and just exterior to the main rim. Large impact basins show a stronger pronounced porosity signature than smaller basins, and old impact basins reveal a muted porosity signature compared to younger basins.
Detailed Seismic Bathymetry Beneath Ekström Ice Shelf, Antarctica: Implications for Glacial History and Ice‐Ocean Interaction
Creators: name: Smith, Emma C.
name: Hattermann, Tore
name: Kuhn, Gerhard
name: Gaedicke, Christoph
name: Berger, Sophie
name: Drews, Reinhard
name: Ehlers, Todd A.
name: Franke, Dieter
name: Gromig, Rapahel
name: Hofstede, Coen
name: Lambrecht, Astrid
name: Läufer, Andreas
name: Mayer, Christoph
name: Tiedemann, Ralf
name: Wilhelms, Frank
name: Eisen, Olaf
Publisher: name: FID GEO
Year: 2020

description: The shape of ice shelf cavities are a major source of uncertainty in understanding ice‐ocean interactions. This limits assessments of the response of the Antarctic ice sheets to climate change. Here we use vibroseis seismic reflection surveys to map the bathymetry beneath the Ekström Ice Shelf, Dronning Maud Land. The new bathymetry reveals an inland‐sloping trough, reaching depths of 1,100 m below sea level, near the current grounding line, which we attribute to erosion by palaeo‐ice streams. The trough does not cross‐cut the outer parts of the continental shelf. Conductivity‐temperature‐depth profiles within the ice shelf cavity reveal the presence of cold water at shallower depths and tidal mixing at the ice shelf margins. It is unknown if warm water can access the trough. The new bathymetry is thought to be representative of many ice shelves in Dronning Maud Land, which together regulate the ice loss from a substantial area of East Antarctica.
description: Plain Language Summary: Antarctica is surrounded by floating ice shelves, which play a crucial role in regulating the flow of ice from the continent into the oceans. The ice shelves are susceptible to melting from warm ocean waters beneath them. In order to better understand the melting, knowledge of the shape and depth of the ocean cavity beneath ice shelves is crucial. In this study, we present new measurements of the sea floor depth beneath Ekström Ice Shelf in East Antarctica. The measurements reveal a much deeper sea floor than previously known. We discuss the implications of this for access of warm ocean waters, which can melt the base of the ice shelf and discuss how the observed sea floor features were formed by historical ice flow regimes. Although Ekström Ice Shelf is relatively small, the geometry described here is thought to be representative of the topography beneath many ice shelves in this region, which together regulate the ice loss from a substantial area of East Antarctica.
description: Key Points: Vibroseis seismic surveys used to map the ice shelf cavity beneath Ekström Ice Shelf in Antarctica. Deep trough with transverse sills and overdeepenings provide evidence of past ice streaming and retreat. Two ocean circulation regimes inferred in the shallow and deep parts of the cavity.
description: Belgian Science Policy Contract
description: Deutsche Forschungsgemeinschaft (DFG) http://dx.doi.org/10.13039/501100001659
description: DFG Cost S2S project
description: RD http://dx.doi.org/10.13039/100009936
Charmonium suppression in p-A collisions
Creators: name: Arleo, F.
name: Gossiaux, P. -B.
name: Gousset, T.
name: Aichelin, J.
Publisher: name: arXiv
Year: 1999
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: The new high precision data on charmonium production in proton-nucleus collisions by the E866/NuSea collaboration at Fermilab allow - together with older data at lower energies - to fix a unique set of parameters for the standard production and absorption scenario of charmonium in a proton-nucleus reaction. In this scenario the c-cbar pair is formed in an octet state, emits a gluon and continues its radial expansion in a singlet state until it has reached the charmonium radius. In all three phases it can interact with the nuclear environment. We find that the lifetime of the octet state is much shorter than acceptable on physical grounds. This challenges the physical reality of the first phase in the standard scenario.
description: 8 pages, 10 figures
title: ADCO, Cartulaire de Cîteaux pour les possessions de Tontenant (c. 1504), Cart. 184 (11 H 987), 105 folios, f. 0035
Creators: name: de la Côte d'Or, Archives départementales
name: Archives Départementales De La Côte-D'Or
name: Petot, Frédérique
name: Projet CBMA
name: CG21/F.PETOT/2015
Publisher: name: NAKALA - https://nakala.fr (Huma-Num - CNRS)
publisherIdentifier: https://ror.org/04ces3204
publisherIdentifierScheme: ROR
Year: 2020
Subjects: subject: cartulaire
subject: LaMOP
subject: Laboratoire de Médiévistique Occidentale de Paris
subject: Corpus Burgundiae Medii Aevi
subject: Chartes de la Bourgogne du Moyen Âge

description: Cartulaire de Cîteaux pour les possessions de Tontenant (c. 1504), Archives départementales de la Côte-d'Or, Cart. 184 (11 H 987), 105 folios, f. 0035, Numérisation en mode image.
description: Relation: http://www.cbma-project.eu/
description: Bibliographic citation: Cartulaire de Cîteaux pour les possessions de Tontenant (c. 1504), Archives départementales de la Côte-d'Or, Cart. 184 (11 H 987), 105 folios, f. 0035, in Projet CBMA - Corpus Burgundiae Medii Aevi [Ressource en ligne], https:// manuscrits.cbma-project.eu/
description: Provenance: abbaye de Cîteaux
description: Provenance: http://www.wikidata.org/entity/Q843261
description: Provenance: https://www.geonames.org/3024876
description: Provenance: http://www.idref.fr/030974844/id
description: Provenance: https://catalogue.bnf.fr/ark:/12148/cb12228351v
Evolution of the cold gas fraction and the star formation history: Prospects with current and future radio facilities
Creators: name: Curran, S. J.
Publisher: name: arXiv
Year: 2018
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: It has recently been shown that the abundance of cold neutral gas may follow a similar evolution as the star formation history. This is physically motivated, since stars form out of this component of the neutral gas and if the case, would resolve the longstanding issue that there is a clear disparity between the total abundance of neutral gas and star forming activity over the history of the Universe. Radio-band 21-cm absorption traces the cold gas and comparison with the Lyman-alpha absorption, which traces all of the gas, provides a measure of the cold gas fraction or the spin temperature. The recent study has shown that the spin temperature (degenerate with the ratio of the absorber/emitter extent) appears to be anti-correlated with the star formation density, undergoing a similar steep evolution as the star formation rate over redshifts of 0 < z < 3, whereas the total neutral hydrogen exhibits little evolution. Above z > 3, where the SFR shows a steep decline with redshift, there is insufficient 21-cm data to determine whether the spin temperature continues to follow the SFR. Knowing this is paramount in ascertaining whether the cold neutral gas does trace the star formation over the Universe's history. We explore the feasibility of resolving this with 21-cm observations of the largest contemporary sample of reliable damped Lyman-alpha absorption systems and conclude that, while today's largest radio interferometers can reach the required sensitivity at z < 3.5, the Square Kilometre Array is required to probe to higher redshifts.
description: Accepted for publication in PASA
Planckian Scattering of D-Branes
Creators: name: Das, Saurya
name: Dasgupta, Arundhati
name: Ramadevi, P.
name: Sarkar, Tapobrata
Publisher: name: arXiv
Year: 1998
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We consider the gravitational scattering of point particles in four dimensions, at Planckian centre of mass energy and low momentum transfer, or the eikonal approximation. The scattering amplitude can be exactly computed by modelling point particles by very generic metrics. A class of such metrics are black hole solutions obtained from dimensional reduction of p-brane solutions with one or more Ramond-Ramond charges in string theory. At weak string coupling, such black holes are replaced by a collection of wrapped D-branes. Thus, we investigate eikonal scattering at weak coupling by modelling the point particles by wrapped D-branes and show that the amplitudes exactly match the corresponding amplitude found at strong coupling. We extend the calculation for scattering of charged particles.
description: 16 pages, REVTEX
WRF‐based dynamical downscaling of ERA5 reanalysis data for High Mountain Asia: Towards a new version of the High Asia Refined analysis
Creators: name: Wang, Xun
name: Tolksdorf, Vanessa
name: Otto, Marco
name: Scherer, Dieter
Publisher: name: John Wiley & Sons, Ltd.
Year: 2020

description: The High Asia Refined analysis (HAR) is a regional atmospheric data set generated by dynamical downscaling of the Final operational global analysis (FNL) using the Weather Research and Forecasting (WRF) model. It has been successfully and widely utilized. A new version (HAR v2) with longer temporal coverage and extended domains is currently under development. ERA5 reanalysis data is used as forcing data. This study aims to find the optimal set‐up for the production of the HAR v2 to provide similar or even better accuracy as the HAR. First, we conducted a sensitivity study, in which different cumulus, microphysics, planetary boundary layer, and land surface model schemes were compared and validated against in situ observations. The technique for order preference by similarity to the ideal solution (TOPSIS) method was applied to identify the best schemes. Snow depth in ERA5 is overestimated in High Mountain Asia (HMA) and causes a cold bias in the WRF output. Therefore, we used Japanese 55‐year Reanalysis (JRA‐55) to correct snow depth initialized from ERA5 based on the linear scaling approach. After applying the best schemes identified by the TOPSIS method and correcting the initial snow depth, the model performance improves. Finally, we applied the improved set‐up for the HAR v2 and computed a one‐year run for 2011. Compared to the HAR, the HAR v2 has a better representation of air temperature at 2 m. It produces slightly higher precipitation amounts, but the spatial distribution of seasonal mean precipitation is closer to observations.
description: German Federal Ministry of Education and Research (BMBF) http://dx.doi.org/10.13039/501100002347
The Search for Superconductivity in High Pressure Hydrides
Creators: name: Bi, Tiange
name: Zarifi, Niloofar
name: Terpstra, Tyson
name: Zurek, Eva
Publisher: name: arXiv
Year: 2018
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: The computational and experimental exploration of the phase diagrams of binary hydrides under high pressure has uncovered phases with novel stoichiometries and structures, some which are superconducting at quite high temperatures. Herein we review the plethora of studies that have been undertaken in the last decade on the main group and transition metal hydrides, as well as a few of the rare earth hydrides at pressures attainable in diamond anvil cells. The aggregate of data shows that the propensity for superconductivity is dependent upon the species used to "dope" hydrogen, with some of the highest values obtained for elements that belong to the alkaline and rare earth, or the pnictogen and chalcogen families.
description: 73 pages, 18 figures, and 1 table
Characteristic quasi-polynomials of ideals and signed graphs of classical root systems
Creators: name: Tran, Tan Nhat
Publisher: name: arXiv
Year: 2018
Subjects: subject: Combinatorics (math.CO)
subject: FOS: Mathematics
subject: 17B22 (Primary), 05A18 (Secondary)

description: With a main tool is signed graphs, we give a full description of the characteristic quasi-polynomials of ideals of classical root systems ($ABCD$) with respect to the integer and root lattices. As a result, we obtain a full description of the characteristic polynomials of the toric arrangements defined by these ideals. As an application, we provide a combinatorial verification to the fact that the characteristic polynomial of every ideal subarrangement factors over the dual partition of the ideal in the classical cases.
description: 17 pages, we welcome comments
A Numerical Study of Absorption by Multilayered Biperiodic Structures
Creators: name: Berginc, G.
name: Bourrely, C.
name: Ordenovic, C.
name: Torresani, B.
Publisher: name: arXiv
Year: 1997
Subjects: subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: We study the electromagnetic scattering by multilayered biperiodic aggregates of dielectric layers and gratings of conducting plates. We show that the characteristic lengths of such structures provide a good control of absorption bands. The influence of the physical parameters of the problem (sizes, impedances) is discussed.
description: 10 pages, revtex, osa aps sty, 13 eps figures
Puccinia heterospora Berk.
Creators: name: Hernandez, J. R.
name: Piepenbring, M.
name: Rios, M. B. V.
Publisher: name: Zenodo
Year: 2007
Subjects: Biodiversity
Taxonomy
Fungi
Basidiomycota
Pucciniomycetes
Pucciniales
Pucciniaceae
Puccinia
Puccinia heterospora

description: Puccinia heterospora Berk. and M.A. Curtis
on Hibiscus sp. Panama, Chiriqui Province, David, El Cabrero, UNACHI, 8°25.947TN, 82°27.045'W, 26 Nov. 2004, leg. J.R. Hernandez 2004-130, III (BPI 864206). On Hibiscus sp. Panama, Chiriqui Province, San Felix, side of San Felix river, 8°16.387'N, 81°51.71'W, 29 Nov. 2004, leg. J.R. Hernandez 2004-151, III (BPI 864210).
P. heterospora is cosmopolitan, reported from the Americas, Africa, Asia, and Oceania on species in the Malvaceae (Farr et al. 2004). This is the first report of P. heterospora from Panama.
description: Published as part of Hernandez, J. R., Piepenbring, M. & Rios, M. B. V., 2007, A new species, Dicheirinia panamensis, and new records of rust fungi from Panama., pp. 81-91 in Mycol Progress 6 on page 88
Approche marketing dans les coopératives béninoises : une étude exploratoire auprès des coopératives agricoles du Mono et du Couffo
Creators: name: ADOUNSA Bernardin
Publisher: name: Zenodo
Year: 2024

description: Dans un contexte marqué par la mondialisation, il est devenu impératif pour les entreprises, qu'elles soient coopératives ou classiques, de considérer non seulement la production à grande échelle, mais aussi les aspects cruciaux de la commercialisation. Cette réalité souligne l'importance du marketing dans la quête d'un avantage concurrentiel et de la maximisation des profits.

Ce travail vise à explorer les pratiques de marketing au sein des coopératives béninoises à travers une recherche quantitative exploratoire en se concentrant particulièrement sur les départements du Mono et du Couffo. L'analyse met en lumière les défis spécifiques auxquels sont confrontées les coopératives dans leur démarche marketing, notamment en termes de segmentation de marché, de positionnement stratégique et de développement de canaux de distribution efficaces. En examinant de près ces aspects, cette recherche vise à combler une lacune importante dans la littérature en matière de marketing des coopératives agricoles, en fournissant des données empiriques et des insights précieux sur les pratiques actuelles et les possibilités d'amélioration.

Enfin, elle contribuera à renforcer la capacité des coopératives à s'adapter aux dynamiques du marché et à jouer un rôle significatif dans le développement économique et social du Bénin.
Modelling Langford's Problem: A Viewpoint for Search
Creators: name: Akgün, Özgür
name: Miguel, Ian
Publisher: name: arXiv
Year: 2018
Subjects: subject: Artificial Intelligence (cs.AI)
subject: FOS: Computer and information sciences

description: The performance of enumerating all solutions to an instance of Langford's Problem is sensitive to the model and the search strategy. In this paper we compare the performance of a large variety of models, all derived from two base viewpoints. We empirically show that a channelled model with a static branching order on one of the viewpoints offers the best performance out of all the options we consider. Surprisingly, one of the base models proves very effective for propagation, while the other provides an effective means of stating a static search order.
Free Energy of a Hot Gluon Plasma and hard-thermal-loop Resummation
Creators: name: Andersen, Jens O.
Publisher: name: arXiv
Year: 1999
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: In this talk I briefly discuss the thermodynamics of the quark-gluon plasma The calculation of the free energy of a hot gluon plasma to leading order in hard-thermal-loop perturbation theory is outlined. The HTL free energy is compared with the weak-coupling expansion and lattice results.
description: 4 pages, 2 figures, LaTeX. Talk given at 15th International Conference on Particle and Nuclei (PANIC 99), Uppsala, Sweden, 10-16 June 1999
Re‐examination of the Population, Stratigraphy, and Sequence of Mercurian Basins: Implications for Mercury's Early Impact History and Comparison With the Moon
Creators: name: Orgel, Csilla
name: Fassett, Caleb I.
name: Michael, Gregory
name: Riedel, Christian
name: Van Der Bogert, Carolyn H.
name: Hiesinger, Harald
Publisher: name: FID GEO
Year: 2020

description: Mercury has one of the best‐preserved impact records in the inner solar system due to the absence of an atmosphere and relatively unmodified ancient surface. However, our knowledge of the early impact record and the nature of the impacting projectiles are far from complete. To get a better understanding of the early impact history, we examined large impact basins (D ≥ 300 km) on Mercury. Here we cataloged 94 basins, 80 of which we classify as certain or probable, 1.7 times more than previously recognized. We re‐evaluate the crater densities of basins using the buffered nonsparseness correction technique, which we successfully applied for the Moon. In contrast with a previous study, we find that basins have a slightly higher N(300) crater density on Mercury than on the Moon, but similar N(500) basin densities. Based on these results and comparison with the Moon, we infer that no more than half of the basin record remains observable and basins older than Borealis have generally been erased from the basin record. Furthermore, we establish the stratigraphic relationships of basins based on N(25) crater frequencies, absolute model ages, and observations of crosscutting relationships. Similarly to our previous study on the Moon, we found no evidence for a change in the size‐frequency distribution of the impacting population; thus, our results are consistent with a single impactor population that bombarded Mercury's surface.
description: Key Points: We cataloged 94 basins on Mercury, 1.7 times more certain and probable basins than in previous works. We observe roughly half of the basin record, where basins older than Borealis are completely erased. Our results are consistent with a single impactor population that bombarded the surface of Mercury.
description: SFB/TRR‐170, A3
description: German Aerospace Center (Deutsches Zentrum für Luft‐ und Raumfahrt) http://dx.doi.org/10.13039/501100002946
description: NASA Discovery Data Analysis Program grant, Analysis of Large‐scale Resurfacing Processes on Mercury
description: Deutsche Forschungsgemeinschaft http://dx.doi.org/10.13039/501100001659
Observation of the Top Quark
Creators: name: Abachi, S.
Publisher: name: arXiv
Year: 1995
Subjects: subject: High Energy Physics - Experiment (hep-ex)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: The DO collaboration reports on a search for the Standard Model top quark in pbar-p collisions at Sqrt(s)=1.8TeV at the Fermilab Tevatron, with an integrated luminosity of approximately 50pb-1. We have searched for t-tbar production in the dilepton and single-lepton decay channels, with and without tagging of b-quark jets. We observed 17 events with an expected background of 3.8+/-0.6 events. The probability for an upward fluctuation of the background to produce the observed signal is 2.0E-6 (equivalent to 4.6 standard deviations). The kinematic properties of the excess events are consistent with top quark decay. We conclude that we have observed the top quark and measure its mass to be 199^+19_21 (stat.)+/- 22 (syst.)GeV/c**2 and its production cross section to be 6.4 +/- 2.2 pb.
description: postscript available at http://fnnews.fnal.gov/top_paper_dzero.ps, for further info see http://fnnews.fnal.gov/top_discovery.html
Deterministic generation of hybrid high-N00N states with Rydberg ions trapped in microwave cavities
Creators: name: Mohseni, Naeimeh
name: Saeidian, Shahpoor
name: Dowling, Jonathan P.
name: Navarrete-Benlloch, Carlos
Publisher: name: arXiv
Year: 2018
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Trapped ions are among the most promising platforms for quantum technologies. They are at the heart of the most precise clocks and sensors developed to date, which exploit the quantum coherence of a single electronic or motional degree of freedom of an ion. However, future high precision quantum metrology will require the use of entangled states of several degrees of freedom. Here we propose a protocol capable of generating high N00N states where the entanglement is shared between the motion of a trapped ion and an electromagnetic cavity mode, a so called hybrid configuration. We prove the feasibility of the proposal in a platform consisting of a trapped ion excited to its circular Rydberg state manifold, coupled to the modes of a high Q microwave cavity. This compact hybrid architecture has the advantage that it can couple to signals of very different nature, which modify either the ions motion or the cavity modes. Moreover, the exact same setup can be used right after the state preparation phase to implement the interferometer required for quantum metrology.
Electroweak baryogenesis from preheating
Creators: name: Garcia-Bellido, Juan
Publisher: name: arXiv
Year: 2000
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: The origin of the matter-antimatter asymmetry remains one of the most fundamental problems of cosmology. In this talk I present a novel scenario for baryogenesis at the electroweak scale, without the need for a first order phase transition. It is based on the out of equilibrium resonant production of long wavelength Higgs and gauge configurations, at the end of a period of inflation, which induces a large rate of sphaleron transitions, before thermalization at a temperature below critical.
description: 7 pages, plenary talk at COSMO99, Trieste, Sep. 1999
Puccinia hydrocotyles
Creators: name: Hernandez, J. R.
name: Piepenbring, M.
name: Rios, M. B. V.
Publisher: name: Zenodo
Year: 2007
Subjects: Biodiversity
Taxonomy
Fungi
Basidiomycota
Pucciniomycetes
Pucciniales
Pucciniaceae
Puccinia
Puccinia hydrocotyles

description: Puccinia hydrocotyles Cooke
on Hydrocotyle bonariensis Comm. ex Lam. Panama, Chiriqui Province, Boquete, 8°46.691'N, 82°25.968'W, 26 Nov. 2004, leg. J.R. Hernandez and M. Vega Rios 2004-124, III (BPI 864128).
P. hydrocotyles was reported from the Americas, Africa, Asia,andOceaniaonspeciesofHydrocotyle (Farr et al. 2004). This is the first report of P. hydrocotyles from Panama and confirms the tentative record in Piepenbring et al. (2002).
description: Published as part of Hernandez, J. R., Piepenbring, M. & Rios, M. B. V., 2007, A new species, Dicheirinia panamensis, and new records of rust fungi from Panama., pp. 81-91 in Mycol Progress 6 on page 88
Machine Learning‐Based Prediction of Spatiotemporal Uncertainties in Global Wind Velocity Reanalyses
Creators: name: Irrgang, Christopher
name: Saynisch‐Wagner, Jan
name: Thomas, Maik
Publisher: name: FID GEO
Year: 2020

description: The characterization of uncertainties in geophysical quantities is an important task with widespread applications for time series prediction, numerical modeling, and data assimilation. In this context, machine learning is a powerful tool for estimating complex patterns and their evolution through time. Here, we utilize a supervised machine learning approach to dynamically predict the spatiotemporal uncertainty of near‐surface wind velocities over the ocean. A recurrent neural network (RNN) is trained with reanalyzed 10 m wind velocities and corresponding precalculated uncertainty estimates during the 2012–2016 time period. Afterward, the neural network's performance is examined by analyzing its prediction for the subsequent year 2017. Our experiments show that a recurrent neural network can capture the globally prevalent wind regimes without prior knowledge about underlying physics and learn to derive wind velocity uncertainty estimates that are only based on wind velocity trajectories. At single training locations, the RNN‐based wind uncertainties closely match with the true reference values, and the corresponding intra‐annual variations are reproduced with high accuracy. Moreover, the neural network can predict global lateral distribution of uncertainties with small mismatch values after being trained only at a few isolated locations in different dynamic regimes. The presented approach can be combined with numerical models for a cost‐efficient generation of ensemble simulations or with ensemble‐based data assimilation to sample and predict dynamically consistent error covariance information of atmospheric boundary forcings.
description: Plain Language Summary: Machine learning is increasingly used for a wide range of applications in geosciences. In this study, we use an artificial neural network in the context of time series prediction. In particular, the goal is to use a neural network for learning spatial and temporal uncertainties that are associated with globally estimated wind velocities. Three well‐known wind velocity products are used for the time period 2012–2016 in different training, validation, and prediction scenarios. Our experiments show that a neural network can learn the prevailing global wind regimes and associate these with corresponding uncertainty estimates. Such a trained neural network can be used for different applications, for example, a cost‐efficient generation of ensemble simulations or for improving traditional data assimilation schemes.
description: Key Points: A recurrent neural network is set up to predict spatiotemporal uncertainties in wind velocity reanalyses. Global uncertainty maps can be derived from only few individual training locations. This method has benefits for time series prediction, ensemble simulations, and data assimilation.
Supplementary document for LoRePIE: ℓ0 Regularised Extended Ptychographical Iterative Engine for Low-dose and Fast Electron Ptychography - 7388502.pdf
Creators: name: Moshtaghpour, Amirafshar
name: Velazco-torrejon, Abner
name: Robinson, Alex W.
name: Browning, Nigel
name: Kirkland, Angus
Publisher: name: Optica Publishing Group
Year: 2025
Subjects: Uncategorized

description: Ablation Studies
Impact of Volcanic Aerosols on the Hydrology of the Asian Monsoon and Westerlies‐Dominated Subregions: Comparison of Proxy and Multimodel Ensemble Means
Creators: name: Zhuo, Z.
name: Gao, C.
name: Kirchner, I.
name: Cubasch, U.
Publisher: name: FID GEO
Year: 2020

description: Proxy‐model comparisons show large discrepancies in the impact of volcanic aerosols on the hydrology of the Asian monsoon region (AMR). This was mostly imputed to uncertainties arising from the use of a single model in previous studies. Here we compare two groups of CMIP5 multimodel ensemble mean (MMEM) with the tree‐ring‐based reconstruction Monsoon Asia Drought Atlas (MADA PDSI), to examine their reliability in reproducing the hydrological effects of the volcanic eruptions in 1300–1850 CE. Time series plots indicate that the MADA PDSI and the MMEMs agree on the significant drying effect of volcanic perturbation over the monsoon‐dominated subregion, while disparities exist over the westerlies‐dominated subregion. Comparisons of the spatial patterns suggest that the MADA PDSI and the MMEMs show better agreement 1 year after the volcanic eruption than in the eruption year and in subregions where more tree‐ring chronologies are available. The MADA PDSI and the CMIP5 MMEMs agree on the drying effect of volcanic eruptions in western‐East Asia, South Asian summer monsoon, and northern East Asian summer monsoon (EASM) regions. Model results suggest significant wetting effect in southern EASM and western‐South Asia, which agrees with the observed hydrological response to the 1991 Mount Pinatubo eruption. Analysis on model output from the Last Millennium Ensemble project shows similar hydrological responses. These results suggest that the CMIP5 MMEM is able to reproduce the impact of volcanic eruptions on the hydrology of the southern AMR.
description: Key Points: Proxy and multimodel ensemble means agree (disagree) on post volcanic hydro‐responses over the Asian monsoon (westerlies)‐dominated subregion. Better agreement of spatial hydrological patterns is suggested 1 year after the eruption and in subregions with more tree‐ring data. Multimodel ensemble means can reproduce the hydrological response to volcanic perturbations in the southern Asian monsoon region.
Puccinia lantanae Farl.
Creators: name: Hernandez, J. R.
name: Piepenbring, M.
name: Rios, M. B. V.
Publisher: name: Zenodo
Year: 2007
Subjects: Biodiversity
Taxonomy
Fungi
Basidiomycota
Pucciniomycetes
Pucciniales
Pucciniaceae
Puccinia
Puccinia lantanae

description: Puccinia lantanae Farl.
on Lantana sp. Panama, Chiriqui Province, Quebrada Cermeno, 8°30.531'N, 82°26.203'W, 28 Nov. 2004, leg. J.R. Hernandez and R. Mangelsdorff 2004-147, III (BPI 864209).
P. lantanae was reported as tropical and subtropical in the western hemisphere, Africa, and Asia on species in the Verbenaceae and Acanthaceae (Farr et al. 2004). This is the first report of P. lantanae from Panama.
description: Published as part of Hernandez, J. R., Piepenbring, M. & Rios, M. B. V., 2007, A new species, Dicheirinia panamensis, and new records of rust fungi from Panama., pp. 81-91 in Mycol Progress 6 on page 88
Income Distribution, Political Instability, and Investment
Creators: name: Alesina, Alberto
name: Perotti, Roberto
name: Alesina, Alberto
name: Perotti, Roberto
Publisher: name: Unknown
Year: 1992
Subjects: Consumer/Household Economics
Political Economy
Research Methods/ Statistical Methods

description: This paper successfully tests on a sample of 64 countries for the period 1960-1985 the following hypotheses. Income inequality, by fueling social discontent, increases socio-political instability. The latter, by creating uncertainty in the politico-economic environment, reduces investment. As a consequence, income inequality and investment are inversely related. Since investment is a primary engine of growth, this paper identifies a channel for the frequently noticed inverse relation between income inequality and growth. We measure socio-political instability with a composite index which captures the occurrence of more or less violent phenomena of political unrest. We test our hypotheses by estimating a two-equation model in which the endogenous variables are investment and the index of socio-political instability. Our results are robust to sensitivity analysis on the specification of the model, and are unchanged when the model is estimated using robust regression techniques.
Was The Electromagnetic Spectrum A Blackbody Spectrum In The Early Universe?
Creators: name: Opher, Merav
name: Opher, Reuven
Publisher: name: arXiv
Year: 1997
Subjects: subject: Astrophysics (astro-ph)
subject: Fluid Dynamics (physics.flu-dyn)
subject: Plasma Physics (physics.plasm-ph)
subject: FOS: Physical sciences

description: It is assumed, in general, that the electromagnetic spectrum in the Primordial Universe was a blackbody spectrum in vacuum. We derive the electromagnetic spectrum, based on the Fluctuation-Dissipation Theorem that describes the electromagnetic fluctuations in a plasma. Our description includes thermal and collisional effects in a plasma. The electromagnetic spectrum obtained differs from the blackbody spectrum in vacuum at low frequencies. In particular, concentrating on the primordial nucleosynthesis era, it has more energy for frequencies less than 3 to $6ω_{pe}$, where $ω_{pe}$ is the electron plasma frequency.
description: 11 pages, RevTeX, 1 ps figure. To be published in Phys.Rev.Lett
Additional file 1: of How do Swiss medical schools prepare their students to become good communicators in their future professional careers: a questionnaire and interview study involving medical graduates, teachers and curriculum coordinators
Creators: name: N. Junod Perron
name: C. KlĂśckner Cronauer
name: S. Hautz
name: K. Schnabel
name: J. Breckwoldt
name: M. Monti
name: S. Huwendiek
name: S. Feller
Publisher: name: figshare
Year: 2018
Subjects: subject: Sociology
subject: FOS: Sociology
subject: 69999 Biological Sciences not elsewhere classified
subject: FOS: Biological sciences
subject: Science Policy

description: Medical graduatesâ perceptions regarding communication skills addressed during the undergraduate curriculum per medical school and preparedness for communication in future professional life. (DOCX 19 kb)
Project FREYA: Connecting Open Knowledge in the European Open Science Cloud - Materials
Creators: name: de Jong, Maaike
name: Cousijn, Helena
name: Lambert, Simon
name: Madden, Frances
name: Dohna, Tina
name: Koop-Jakobsen, Ketil
name: Garza, Kristian
Publisher: name: Zenodo
Year: 2019
Subjects: PIDs, Persistent Identifiers, EOSC

description: Materials from the FREYA event Project FREYA: Connecting Open Knowledge in the European Open Science Cloud held on 21 October 2019 co-located with RDA P14 in Helsinki, Finland. Materials include presentation slides about the FREYA project, specifically the outputs relating to the PID Graph, plans for new PID types and sustainability planning. The Jupyter notebooks used for the PID Graph tutorial are available at https://doi.org/10.14454/3bpw-w381 and https://doi.org/10.14454/628m-3882.
Puccinia lateritia Berk.
Creators: name: Hernandez, J. R.
name: Piepenbring, M.
name: Rios, M. B. V.
Publisher: name: Zenodo
Year: 2007
Subjects: Biodiversity
Taxonomy
Fungi
Basidiomycota
Pucciniomycetes
Pucciniales
Pucciniaceae
Puccinia
Puccinia lateritia

description: Puccinia lateritia Berk. and M.A. Curtis
on Borreria ocymoides (Burm. f.) DC. Panama, Chiriqui Province, Volcan, 8°47.398TN, 82°40.565'W, 25 Nov. 2004, leg. J.R. Hernandez 2004-102, III (BPI 864194). This specimen confirms the tentative record in Piepenbring et al. (2002).
P. lateritia was reported as tropical and subtropical in the western hemisphere, Africa, and Asia on species in the Rubiaceae (Farr et al. 2004). This is the first report of P. lateritia from Panama.
description: Published as part of Hernandez, J. R., Piepenbring, M. & Rios, M. B. V., 2007, A new species, Dicheirinia panamensis, and new records of rust fungi from Panama., pp. 81-91 in Mycol Progress 6 on page 88
Active control of broadband plasmon-induced transparency in terahertz hybrid metal-graphene metamaterial
Creators: name: Zhang, Zhaojian
name: Yang, Junbo
name: He, Xin
name: Han, Yunxin
name: Zhang, Jingjing
name: Huang, Jie
name: Chen, Dingbo
name: Xu, Siyu
Publisher: name: arXiv
Year: 2018
Subjects: subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: A hybrid metal-graphene metamaterial (MM) is reported to achieve the active control of the broadband plasmon-induced transparency (PIT) in THz region. The unit cell consists of one cut wire (CW), four U-shape resonators (USRs) and monolayer graphene sheets under the USRs. Via near-field coupling, broadband PIT can be produced through the interference between different modes. Based on different arrangements of graphene positions, not only can we achieve electrically switching the amplitude of broadband PIT, but also can realize modulating the bandwidth of the transparent window. Simultaneously, both the capability and region of slow light can be dynamically tunable. This work provides schemes to manipulate PIT with more degrees of freedom, which will find significant applications in multifunctional THz modulation.
Noncommutative Geometry and Gauge Theory on Fuzzy Sphere
Creators: name: Carow-Watamura, Ursula
name: Watamura, Satoshi
Publisher: name: arXiv
Year: 1998
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: The differential algebra on the fuzzy sphere is constructed by applying Connes' scheme. The U(1) gauge theory on the fuzzy sphere based on this differential algebra is defined. The local U(1) gauge transformation on the fuzzy sphere is identified with the left $U(N+1)$ transformation of the field, where a field is a bimodule over the quantized algebra $\CA_N$. The interaction with a complex scalar field is also given.
description: LaTeX 26 pages, final version (Dec.1999) accepted in CMP. An extra term in the gauge action is discussed