cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Electromagnetic vs. Lense-Thirring alignment of black hole accretion discs
Creators: name: Polko, Peter
name: McKinney, Jonathan C.
Publisher: name: arXiv
Year: 2015
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: Accretion discs and black holes (BHs) have angular momenta that are generally misaligned with respect to each other, which can lead to warps in the discs and bends in any jets produced. We consider a disc that is misaligned at large radii and torqued by Lense-Thirring (LT) precession and a Blandford-Znajek (BZ) jet torque. We consider a variety of disc states that include radiatively inefficient thick discs, radiatively efficient thin discs, and super-Eddington accretion discs. The magnetic field strength of the BZ jet is chosen as either from standard equipartition arguments or from magnetically arrested disc (MAD) simulations. We show that standard thin accretion discs can reach spin-disc alignment out to large radii long before LT would play a role, as caused by the slow infall time that gives even a weak BZ jet time to align the disc. We show that geometrically thick radiatively inefficient discs and super-Eddington discs in the MAD state reach disc-spin alignment near the black hole when density profiles are shallow as in magnetohydrodynamical simulations, while the BZ jet aligns discs with steep density profiles (as in advection-dominated accretion flows) with the BH spin out to larger radii. Our results imply that the BZ jet torque should affect the cosmological evolution of BH spin magnitude and direction, BH spin measurements in active galactic nuclei and X-ray binaries, and the interpretations for Event Horizon Telescope observations of discs or jets in strong-field gravity regimes.
description: 11 pages, 3 figures, submitted to MNRAS
An explicit André-Oort type result for P^1(C) x G_m(C)
Creators: name: Paulin, Roland
Publisher: name: arXiv
Year: 2014
Subjects: subject: Number Theory (math.NT)
subject: FOS: Mathematics
subject: 11G18 (Primary), 11R37 (Secondary)

description: Using class field theory we prove an explicit result of André-Oort type for $\mathbb{P}^1(\mathbb{C}) \times \mathbb{G}_m(\mathbb{C})$. In this variation the special points of $\mathbb{P}^1(\mathbb{C})$ are the singular moduli, while the special points of $\mathbb{G}_m(\mathbb{C})$ are defined to be the roots of unity.
description: 10 pages
Sacciolepis indica Chase 1908
Creators: name: Jarvis, Charlie
Publisher: name: Zenodo
Year: 2007
Subjects: Biodiversity
Taxonomy
Plantae
Tracheophyta
Liliopsida
Poales
Poaceae
Sacciolepis
Sacciolepis indica

description: Aira spicata Linnaeus, Species Plantarum 1: 63. 1753, nom. inval. "Habitat in India." RCN: 485. Type not relevant. Current name:  Sacciolepis indica (L.) Chase (Poaceae). Note: Linnaeus accidentally gave the epithet “spicata” to two species of Aira in 1753, Aira no. 1 (p. 63) and Aira no. 7 (p. 64). Realising this, he corrected the first of these to indica [“indicum”] on p. 1231 of vol. 2 of the same work (Errata).
description: Published as part of Jarvis, Charlie, 2007, Chapter 7: Linnaean Plant Names and their Types (part A), pp. 252-342 in Order out of Chaos. Linnaean Plant Types and their Types, London :Linnaean Society of London in association with the Natural History Museum on page 272, DOI: 10.5281/zenodo.291971
Ion transport in macroscopic RF linear traps
Creators: name: Pedregosa-Gutierrez, Jofre
name: Champenois, Caroline
name: Kamsap, Marius Romuald
name: Knoop, Martina
Publisher: name: arXiv
Year: 2014
Subjects: subject: Atomic Physics (physics.atom-ph)
subject: FOS: Physical sciences

description: Efficient transport of cold atoms or ions is a subject of increasing concern in many experimental applications reaching from quantum information processing to frequency metrology. For the scalable quantum computer architectures based on the shuttling of individual ions, different transport schemes have been developed, which allow to move single atoms minimizing their energy gain. In this article we discuss the experimental implementation of the transport of a three-dimensional ion cloud in a macroscopic linear radiofrequency (RF) trap. The present work is based on numerical simulations done by molecular dynamics taking into account a realistic experimental environment. The deformation of the trapping potential and the spatial extension of the cloud during transport appears to be the major source of the ion energy gain. The efficiency of transport in terms of transfer probability and ion number is also discussed.
Real wave propagation in the isotropic relaxed micromorphic model
Creators: name: Neff, Patrizio
name: Madeo, Angela
name: Barbagallo, Gabriele
name: d'Agostino, Marco Valerio
name: Abreu, Rafael
name: Ghiba, Ionel-Dumitrel
Publisher: name: arXiv
Year: 2016
Subjects: subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences
subject: 74A10, 74A30, 74A60, 74E15, 74M25, 74Q15

description: For the recently introduced isotropic relaxed micromorphic generalized continuum model, we show that under the assumption of positive definite energy, planar harmonic waves have real velocity. We also obtain a necessary and sufficient condition for real wave velocity which is weaker than positive-definiteness of the energy. Connections to isotropic linear elasticity and micropolar elasticity are established. Notably, we show that strong ellipticity does not imply real wave velocity in micropolar elasticity, while it does in isotropic linear elasticity.
Transmission enhancement through square coaxial apertures arrays in metallic film: when leaky modes filter infrared light
Creators: name: Vial, Benjamin
name: Bedu, Frédéric
name: Dallaporta, Hervé
name: Commandré, Mireille
name: Demésy, Guillaume
name: Nicolet, André
name: Zolla, Frédéric
name: Tisserand, Stéphane
name: Roux, Laurent
Publisher: name: arXiv
Year: 2014
Subjects: subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: We consider arrays of square coaxial apertures in a gold layer and study their diffractive behavior in the far infrared region. These structures exhibit a resonant transmission enhancement that is used to design tunable bandpass filters. We provide a study of their spectral features and show by a modal analysis that the resonance peak is due to the excitation of leaky modes of the open photonic structure. Fourier transform infrared (FTIR) spectrophotometry transmission measurements of samples deposited on Si substrate show good agreement with numerical results and demonstrate angular tolerance up to 30 degrees of the fabricated filters.
description: 4 pages, 3 figures
MOZAIC news - number 3
Creators: name: Marenco, A
name: Hume, C
Publisher: name: Zenodo
Year: 1995
Subjects: subject: data and information
subject: https://id.loc.gov/authorities/subjects/sh2018002590.html

description: Measurement of Ozone by Airbus in Service (MOZAIC) newsletter from December 1995, issue number 3.
description: Previously curated at: http://cedadocs.ceda.ac.uk/1094/ The publish date on this item was its original published date. Main files in this record: MOZAIC_NEWS_-_number_3.pdf Item originally deposited with Centre for Environmental Data Analysis (CEDA) document repository by Miss Poppy Townsend. Transferred to CEDA document repository community on Zenodo on 2022-11-24
Exploring droplet impact near a millimetre-sized hole: comparing a closed pit with an open-ended pore
Creators: name: de Jong, Rianne
name: Enríquez, Oscar R.
name: van der Meer, Devaraj
Publisher: name: arXiv
Year: 2014
Subjects: subject: Fluid Dynamics (physics.flu-dyn)
subject: FOS: Physical sciences

description: We investigate drop impact dynamics near both closed pits and open- ended pores experimentally. The resulting impact phenomena differ greatly for a pit or a pore. For the first, we observe three phenomena: a splash, a jet and an air bubble, whose appearance depends on the distance between impact location and pit. Furthermore, we found that splash velocities can reach up to seven times the impact velocity. Drop impact near a pore, however, results solely in splashing. Surprisingly, two distinct and disconnected splashing regimes occur, with a region of plain spreading in-between. For pores, splashes are less pronounced than in the pit case. We state that, for the pit case, the presence of air inside the pit plays a crucial role: it promotes splashing and allows for air bubbles to appear.
description: 17 pages, 11 figures, 1 supplementary movie, submitted to JFM
Meteorological Research Flight (MRF) A258, 259, 260
Creators: name: Unknown
Publisher: name: Zenodo
Year: 1993
Subjects: subject: data and information
subject: https://id.loc.gov/authorities/subjects/sh2018002590.html

description: Meteorological Research Flight (MRF) A258, 259, 260
description: Previously curated at: http://cedadocs.ceda.ac.uk/1095/ The publish date on this item was its original published date. Main files in this record: MRF_A258,259,260.pdf Item originally deposited with Centre for Environmental Data Analysis (CEDA) document repository by Miss Poppy Townsend. Transferred to CEDA document repository community on Zenodo on 2022-11-24
Observation of hard radiations in a laboratory atmospheric high-voltage discharge
Creators: name: Agafonov, A. V.
name: Bogachenkov, V. A.
name: Chubenko, A. P.
name: Oginov, A. V.
name: Rodionov, A. A.
name: Rusetskiy, A. S.
name: Ryabov, V. A.
name: Shepetov, A. L.
name: Shpakov, K. V.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Plasma Physics (physics.plasm-ph)
subject: Instrumentation and Detectors (physics.ins-det)
subject: FOS: Physical sciences

description: The new results concerning neutron emission detection from a laboratory high-voltage discharge in the air are presented. Data were obtained with a combination of plastic scintillation detectors and $^3$He filled counters of thermal neutrons. Strong dependence of the hard x-ray and neutron radiation appearance on the field strength near electrodes, which is determined by their form, was found. We have revealed a more sophisticated temporal structure of the neutron bursts observed during of electric discharge. This may indicate different mechanisms for generating penetrating radiation at the time formation and development of the atmospheric discharge.
description: 10 pages, 10 figures, 2 tables
Additional file 1 of Capturing the antibiotic resistome of preterm infants reveals new benefits of probiotic supplementation
Creators: name: Guitor, Allison K.
name: Yousuf, Efrah I.
name: Raphenya, Amogelang R.
name: Hutton, Eileen K.
name: Morrison, Katherine M.
name: McArthur, Andrew G.
name: Wright, Gerard D.
name: Stearns, Jennifer C.
Publisher: name: figshare
Year: 2022
Subjects: subject: Space Science
subject: Medicine
subject: Microbiology
subject: FOS: Biological sciences
subject: Cell Biology
subject: 59999 Environmental Sciences not elsewhere classified
subject: FOS: Earth and related environmental sciences
subject: Ecology
subject: 69999 Biological Sciences not elsewhere classified
subject: 110309 Infectious Diseases
subject: FOS: Health sciences
subject: Computational Biology

description: Additional file 1: Figure S1. Antibiotic exposure of preterm infants. Table S1. Information regarding the full-term infants. Table S2. Information regarding the subset of preterm infants. Figure S2. Sample collection and probiotic exposure of the subset of infants. Figure S3. Antibiotic exposure of the subset of preterm infants. Figure S4. Relative abundance of bacterial families in the infant gut microbiome. Figure S5. Targeted capture of resistance genes in the full set of infants. Figure S6. Targeted capture of resistance genes in the subset of infants. Figure S7. Differences in the resistome identified through RGI main at Visit 1. Figure S8. Distribution of genes detected at the AMR gene family level through RGI bwt. Figure S9. Distribution of genes detected at the AMR gene family level through RGI main. Figure S10. Differences in the resistome identified through RGI bwt in the subset at Visit 1. Figure S11. Differences in the resistome identified through RGI main in the subset at Visit 1. Figure S12. Unique genes in each infant group at various timepoints for the preterm infants. Figure S13. Unique genes in each infant group for the subset of preterm infants at various timepoints. Figure S14. Unique genes in each infant group at various timepoints for the subset of preterm infants. Figure S15. Unique ARGs, mechanisms, and families identified in preterm infants through RGI main. Figure S16. Unique ARGs, mechanisms, and families identified in the subset of preterm infants through RGI bwt. Figure S17. AMR gene families identified through RGI bwt. Figure S18. AMR gene families identified through RGI main. Figure S19. Genetic context of vancomycin resistance gene families detected in all infants. Figure S20. Genetic context of AMR families more prominent in NS infants. Figure S21. Genetic context of ANT(3”) resistance gene families detected in all infants. Figure S22. Genetic context of the ANT(6) gene family in all infants. Figure S23. Genetic context of OKP beta-lactamases detected in all infants. Figure S24. Genetic context of the APH(2”) gene family detected in all infants.
Trisetum spicatum K. Richt.
Creators: name: Jarvis, Charlie
Publisher: name: Zenodo
Year: 2007
Subjects: Biodiversity
Taxonomy
Plantae
Tracheophyta
Liliopsida
Poales
Poaceae
Trisetum
Trisetum spicatum

description: Aira spicata Linnaeus, Species Plantarum 1: 64. 1753. "Habitat in Lapponiae alpibus." RCN: 554. Replaced synonym of: Aira subspicata L. (1759), nom. illeg. Lectotype (Louis-Marie in Rhodora 30: 238. 1928): [icon] " Gramen Avenaceum paniculatum Alp. humile, locustis in spicam collectis varicoloribus aristatis " in Scheuchzer, Agrostographia Helv. Prodr.: 24, t. 6. 1708. Current name:  Trisetum spicatum (L.) K. Richt. (Poaceae). Note: Linnaeus accidentally gave the epithet “spicata” to two species of Aira in 1753, Aira no. 1 (p. 63) and Aira no. 7 (p. 64). Realising this, he corrected the first of these to indica [“indicum”] on p. 1231 of vol. 2 of the same work (Errata). Hitchcock (in Contr. U. S. Natl. Herb. 12: 120. 1908) noted this and discussed material in LINN. Louis-Marie (1928) typified the name using the Scheuchzer plate, though Mackenzie (in Rhodora 31: 194. 1929) questioned the "doubtful correctness" of this. Edgar (in New Zealand J. Bot. 36: 556. 1998) indicated Herb. Linn. 85.7 (LINN) as the holotype, with an isotype, previously reproduced by Hultén (in Svensk Bot. Tidskr. 53: 207, f. 1. 1959), in S. Although Edgar’s choice has been followed by some later authors, that of Louis-Marie has priority, and does not appear to cause any nomenclatural disruption.
description: Published as part of Jarvis, Charlie, 2007, Chapter 7: Linnaean Plant Names and their Types (part A), pp. 252-342 in Order out of Chaos. Linnaean Plant Types and their Types, London :Linnaean Society of London in association with the Natural History Museum on page 273, DOI: 10.5281/zenodo.291971
Spectral Properties of Non-Unitary Band Matrices
Creators: name: Hamza, Eman
name: Joye, Alain
Publisher: name: arXiv
Year: 2014
Subjects: subject: Mathematical Physics (math-ph)
subject: Spectral Theory (math.SP)
subject: FOS: Physical sciences
subject: FOS: Mathematics

description: We consider families of random non-unitary contraction operators defined as deformations of CMV matrices which appear naturally in the study of random quantum walks on trees or lattices. We establish several deterministic and almost sure results about the location and nature of the spectrum of such non-normal operators as a function of their parameters. We relate these results to the analysis of certain random quantum walks, the dynamics of which can be studied by means of iterates of such random non-unitary contraction operators.
description: updated version, to appear in Annales Henri Poincare
Spin Hall and Edelstein effects in metallic films: from 2D to 3D
Creators: name: Borge, J.
name: Gorini, C.
name: Vignale, G.
name: Raimondi, R.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: A normal metallic film sandwiched between two insulators may have strong spin-orbit coupling near the metal-insulator interfaces, even if spin-orbit coupling is negligible in the bulk of the film. In this paper we study two technologically important and deeply interconnected effects that arise from interfacial spin-orbit coupling in metallic films. The first is the spin Hall effect, whereby a charge current in the plane of the film is partially converted into an orthogonal spin current in the same plane. The second is the Edelstein effect, in which a charge current produces an in-plane, transverse spin polarization. At variance with strictly two-dimensional Rashba systems, we find that the spin Hall conductivity has a finite value even if spin-orbit interaction with impurities is neglected and "vertex corrections" are properly taken into account. Even more remarkably, such finite value becomes "universal" in a certain configuration. This is a direct consequence of the spatial dependence of spin-orbit coupling on the third dimension, perpendicular to the film plane. The non-vanishing spin Hall conductivity has a profound influence on the Edelstein effect, which we show to consist of two terms, the first with the standard form valid in a strictly two-dimensional Rashba system, and a second arising from the presence of the third dimension. Whereas the standard term is proportional to the momentum relaxation time, the new one scales with the spin relaxation time. Our results, although derived in a specific model, should be valid rather generally, whenever a spatially dependent Rashba spin-orbit coupling is present and the electron motion is not strictly two-dimensional.
description: 23 pages, 3 figures
Additional file 2 of Capturing the antibiotic resistome of preterm infants reveals new benefits of probiotic supplementation
Creators: name: Guitor, Allison K.
name: Yousuf, Efrah I.
name: Raphenya, Amogelang R.
name: Hutton, Eileen K.
name: Morrison, Katherine M.
name: McArthur, Andrew G.
name: Wright, Gerard D.
name: Stearns, Jennifer C.
Publisher: name: figshare
Year: 2022
Subjects: subject: Space Science
subject: Medicine
subject: Microbiology
subject: FOS: Biological sciences
subject: Cell Biology
subject: 59999 Environmental Sciences not elsewhere classified
subject: FOS: Earth and related environmental sciences
subject: Ecology
subject: 69999 Biological Sciences not elsewhere classified
subject: 110309 Infectious Diseases
subject: FOS: Health sciences
subject: Computational Biology

description: Additional file 2. Supplementary Methods.
NERC Data Holdings Catalogue
Creators: name: Unknown
Publisher: name: Zenodo
Year: 1998
Subjects: subject: data and information
subject: https://id.loc.gov/authorities/subjects/sh85081263.html
subject: https://id.loc.gov/authorities/subjects/sh2018002590.html
subject: https://id.loc.gov/authorities/subjects/sh85040468.html

description: Brochure summarising the NERC (Natural Environmental Research Council) data centres in 1998.
description: Previously curated at: http://cedadocs.ceda.ac.uk/1097/ The publish date on this item was its original published date. Main files in this record: NERC_Data_Holdings_Catalogue_1998.pdf Item originally deposited with Centre for Environmental Data Analysis (CEDA) document repository by Miss Poppy Townsend. Transferred to CEDA document repository community on Zenodo on 2022-11-24
Theoretical determination of the hadronic (g-2) of the muon
Creators: name: Dominguez, C. A.
name: Schilcher, K.
name: Spiesberger, H.
Publisher: name: arXiv
Year: 2016
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: An approach is discussed on the determination of the leading order hadronic contribution to the muon anomaly, $a_μ^{HAD}$, based entirely on theory. This method makes no use of $e^+ e^-$ annihilation data, a likely source of the current discrepancy between theory and experiment beyond the $3\, σ$ level. What this method requires is essentially knowledge of the first derivative of the vector current correlator at zero-momentum. In the heavy-quark sector this is obtained from the well known heavy quark expansion in perturbative QCD, leading to values of $a_μ^{HAD}$ in the charm- and bottom-quark region which were fully confirmed by later lattice QCD (LQCD) results. In the light-quark sector, using recent preliminary LQCD results for the first derivative of the vector current correlator at zero-momentum leads to the value $a_μ^{HAD} = (729 - 871)\, \times\,10^{-10}$, which is significantly larger than values obtained from using $e^+ e^-$ data. A separate approach based on the operator product expansion (OPE), and designed to quench the contribution of these data, reduces the discrepancy by at least 40\%. In addition, it exposes a tension between the OPE and $e^+ e^-$ data, thus suggesting the blame for the discrepancy on the latter.
description: Invited talk at the Workshop on Determination of the Fundamental Parameters in QCD, Mainz Institute of Theoretical Physics, Johannes Gutenberg University of Mainz. To be published in Mod. Phys. Lett. A
Trisetum spicatum K. Richt.
Creators: name: Jarvis, Charlie
Publisher: name: Zenodo
Year: 2007
Subjects: Biodiversity
Taxonomy
Plantae
Tracheophyta
Liliopsida
Poales
Poaceae
Trisetum
Trisetum spicatum

description: Aira subspicata Linnaeus, Systema Naturae, ed. 10, 2: 873. 1759, nom. illeg. ["Habitat in Lapponiae alpibus."] Sp. Pl. 1: 64 (1753). RCN: 554. Replaced synonym: Aira spicata L. (1753). Lectotype (Louis-Marie in Rhodora 30: 238. 1928): [icon] "Gramen Avenaceum paniculatum Alp. humile, locustis in spicam collectis varicoloribus aristatis" in Scheuchzer, Agrostographia Helv. Prodr.: 24, t. 6. 1708. Current name:  Trisetum spicatum (L.) K. Richt. (Poaceae). Note: An illegitimate renaming of A. spicata L. (1753: 64 non 1753: 63).
description: Published as part of Jarvis, Charlie, 2007, Chapter 7: Linnaean Plant Names and their Types (part A), pp. 252-342 in Order out of Chaos. Linnaean Plant Types and their Types, London :Linnaean Society of London in association with the Natural History Museum on page 273, DOI: 10.5281/zenodo.291971
Star formation in W3 - AFGL333: Young stellar content, properties and roles of external feedback
Creators: name: Jose, Jessy
name: Kim, Jinyoung S.
name: Herczeg, Gregory J.
name: Samal, Manash R.
name: Bieging, John H.
name: Meyer, Michael R.
name: Sherry, William H.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: One of the key questions in the field of star formation is the role of stellar feedback on subsequent star formation process. The W3 giant molecular cloud complex at the western border of the W4 super bubble is thought to be influenced by the stellar winds of the massive stars in W4. AFGL333 is a ~10^4 Msun cloud within W3. This paper presents a study of the star formation activity within AFGL333 using deep JHKs photometry obtained from the NOAO Extremely Wide-Field Infrared Imager combined with Spitzer-IRAC-MIPS photometry. Based on the infrared excess, we identify 812 candidate young stellar objects in the complex, of which 99 are classified as Class I and 713 are classified as Class II sources. The stellar density analysis of young stellar objects reveals three major stellar aggregates within AFGL333, named here AFGL333-main, AFGL333-NW1 and AFGL333-NW2. The disk fraction within AFGL333 is estimated to be ~50-60%. We use the extinction map made from the H-Ks colors of the background stars to understand the cloud structure and to estimate the cloud mass. The CO-derived extinction map corroborates the cloud structure and mass estimates from NIR color method. From the stellar mass and cloud mass associated with AFGL333, we infer that the region is currently forming stars with an efficiency of ~4.5% and at a rate of ~2 - 3 Msun Myr-1pc-2. In general, the star formation activity within AFGL333 is comparable to that of nearby low mass star-forming regions. We do not find any strong evidence to suggest that the stellar feedback from the massive stars of nearby W4 super bubble has affected the global star formation properties of the AFGL333 region.
description: 17 pages, 9 figures, Accepted for publication in ApJ
Electronic Transport Properties of Chemically Modified Double-Walled Carbon Nanotubes
Creators: name: Lopez-Bezanilla, Alejandro
Publisher: name: arXiv
Year: 2016
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: We present a study on the quantum transport properties of chemically functionalized metallic double-walled carbon nanotubes (DWNTs) with lengths reaching the micrometer scale. First-principles calculations evidence that, for coaxial tubes separated by the typical graphitic van der Waals-bond distance, the chemical modification of the outer wall with sp$^3$-type defects affects the electronic structure of both the outer and the inner tube, which reduces significantly the charge transport capability of the DWNT. For larger spacing between sidewalls, the conductivity of the outer wall decreases with increasing functional group coverage density while charge transport in the inner tube is equivalent to that of a pristine nanotube. Additionally, chemical attachment of CCl$_2$ onto the outer DWNT sidewall barely affect the conjugated $π$-network of the double-wall and charge transport remains in the quasi-ballistic regime. These results indicate an efficient route for tailoring electronic transport in DWNTs provided inner shell geometry and functional groups are properly chosen.
description: 7 pages, 4 Figures
NERC Directory of Data Holdings
Creators: name: Unknown
Publisher: name: Zenodo
Year: 1994
Subjects: subject: data and information
subject: https://id.loc.gov/authorities/subjects/sh2018002590.html

description: Documentation for NERCs (Natural Environmental Research Council) directory of data holdings in 1994.
description: Previously curated at: http://cedadocs.ceda.ac.uk/1098/ The publish date on this item was its original published date. Main files in this record: NERC_Directory_of_data_holdings_-_version_0.1.pdf Item originally deposited with Centre for Environmental Data Analysis (CEDA) document repository by Miss Poppy Townsend. Transferred to CEDA document repository community on Zenodo on 2022-11-24
Social and Natural Sciences Differ in Their Research Strategies, Adapted to Work for Different Knowledge Landscapes
Creators: name: Jaffe, Klaus
Publisher: name: arXiv
Year: 2014
Subjects: subject: Physics and Society (physics.soc-ph)
subject: Digital Libraries (cs.DL)
subject: FOS: Physical sciences
subject: FOS: Computer and information sciences

description: Do different fields of knowledge require different research strategies? A numerical model exploring different virtual knowledge landscapes, revealed two diverging optimal search strategies. Trend following is maximized when the popularity of new discoveries determine the number of individuals researching it. This strategy works best when many researchers explore few large areas of knowledge. In contrast, individuals or small groups of researchers are better in discovering small bits of information in dispersed knowledge landscapes. Bibliometric data of scientific publications showed a continuous bipolar distribution of these strategies, ranging from natural sciences, with highly cited publications in journals containing a large number of articles, to the social sciences, with rarely cited publications in many journals containing a small number of articles. The natural sciences seem to adapt their research strategies to landscapes with large concentrated knowledge clusters, whereas social sciences seem to have adapted to search in landscapes with many small isolated knowledge clusters. Similar bipolar distributions were obtained when comparing levels of insularity estimated by indicators of international collaboration and levels of country-self citations: researchers in academic areas with many journals such as social sciences, arts and humanities, were the most isolated, and that was true in different regions of the world. The work shows that quantitative measures estimating differences between academic disciplines improve our understanding of different research strategies, eventually helping interdisciplinary research and may be also help improve science policies worldwide.
description: Formerly called: Simulations suggest that social and natural sciences differ in their research strategies adapted to work for different knowledge landscapes
Aizoon canariense Linnaeus 1753
Creators: name: Jarvis, Charlie
Publisher: name: Zenodo
Year: 2007
Subjects: Biodiversity
Taxonomy
Plantae
Tracheophyta
Magnoliopsida
Caryophyllales
Aizoaceae
Aizoon
Aizoon canariense

description: Aizoon canariense Linnaeus, Species Plantarum 1: 488. 1753. "Habitat in Canariis." RCN: 3714. Lectotype (Burtt & Lewis in Kew Bull. 7: 350. 1952): Herb. Linn. No. 650.1 (LINN). Generitype of Aizoon Linnaeus (vide Green, Prop. Brit. Bot.: 159. 1929). Current name:  Aizoon canariense L. (Aizoaceae).
description: Published as part of Jarvis, Charlie, 2007, Chapter 7: Linnaean Plant Names and their Types (part A), pp. 252-342 in Order out of Chaos. Linnaean Plant Types and their Types, London :Linnaean Society of London in association with the Natural History Museum on page 273, DOI: 10.5281/zenodo.291971
Partitioning strategies for the interaction of a fluid with a poroelastic material based on a Nitsche's coupling approach
Creators: name: Bukac, Martina
name: Yotov, Ivan
name: Zakerzadeh, Rana
name: Zunino, Paolo
Publisher: name: arXiv
Year: 2014
Subjects: subject: Numerical Analysis (math.NA)
subject: FOS: Mathematics

description: We develop a computational model to study the interaction of a fluid with a poroelastic material. The coupling of Stokes and Biot equations represents a prototype problem for these phenomena, which feature multiple facets. On one hand it shares common traits with fluid-structure interaction. On the other hand it resembles the Stokes-Darcy coupling. For these reasons, the numerical simulation of the Stokes-Biot coupled system is a challenging task. The need of large memory storage and the difficulty to characterize appropriate solvers and related preconditioners are typical shortcomings of classical discretization methods applied to this problem. The application of loosely coupled time advancing schemes mitigates these issues because it allows to solve each equation of the system independently with respect to the others. In this work we develop and thoroughly analyze a loosely coupled scheme for Stokes-Biot equations. The scheme is based on Nitsche's method for enforcing interface conditions. Once the interface operators corresponding to the interface conditions have been defined, time lagging allows us to build up a loosely coupled scheme with good stability properties. The stability of the scheme is guaranteed provided that appropriate stabilization operators are introduced into the variational formulation of each subproblem. The error of the resulting method is also analyzed, showing that splitting the equations pollutes the optimal approximation properties of the underlying discretization schemes. In order to restore good approximation properties, while maintaining the computational efficiency of the loosely coupled approach, we consider the application of the loosely coupled scheme as a preconditioner for the monolithic approach. Both theoretical insight and numerical results confirm that this is a promising way to develop efficient solvers for the problem at hand.
Nimbus-7 Total Ozone Mapping Spectrometer (TOMS) Data Products User's Guide
Creators: name: McPeters, RD
name: Krueger, AJ
name: Bhartia, PK
name: Herman, JR
name: Oaks, A
name: Ahmad, Z
name: Cebula, RP
name: Schlesinger, BM
name: Swissler, T
name: Taylor, SL
name: Torres, O
name: Wellemeyer, CG
Publisher: name: Zenodo
Year: 1993
Subjects: subject: data and information
subject: https://id.loc.gov/authorities/subjects/sh2018002590.html
subject: https://id.loc.gov/authorities/subjects/sh85125953.html
subject: https://id.loc.gov/authorities/subjects/sh85084334.html

description: This document is a guide to the data products obtained from the measurements by the Total Ozone Mapping Spectrometer (TOMS) experiment aboard the Nimbus-7 satellite. It discusses the calibration of the instrument, the algorithm used to derive ozone values from the measurements, the uncertainties of the data on the tapes, and the tape structure.
description: Previously curated at: http://cedadocs.ceda.ac.uk/1099/ The publish date on this item was its original published date. Main files in this record: Nimbus-7_Total_Ozone_Mapping_Spectrometer_(TOMS)_Data_Products_User's_Guide.pdf Item originally deposited with Centre for Environmental Data Analysis (CEDA) document repository by Miss Poppy Townsend. Transferred to CEDA document repository community on Zenodo on 2022-11-24
Two-state filtering for joint state-parameter estimation
Creators: name: Santitissadeekorn, Naratip
name: Jones, Chris
Publisher: name: arXiv
Year: 2014
Subjects: subject: Chaotic Dynamics (nlin.CD)
subject: Data Analysis, Statistics and Probability (physics.data-an)
subject: FOS: Physical sciences

description: This paper presents an approach for simultaneous estimation of the state and unknown parameters in a sequential data assimilation framework. The state augmentation technique, in which the state vector is augmented by the model parameters, has been investigated in many previous studies and some success with this technique has been reported in the case where model parameters are additive. However, many geophysical or climate models contains non-additive parameters such as those arising from physical parametrization of sub-grid scale processes, in which case the state augmentation technique may become ineffective since its inference about parameters from partially observed states based on the cross covariance between states and parameters is inadequate if states and parameters are not linearly correlated. In this paper, we propose a two-stages filtering technique that runs particle filtering (PF) to estimate parameters while updating the state estimate using Ensemble Kalman filter (ENKF; these two "sub-filters" interact. The applicability of the proposed method is demonstrated using the Lorenz-96 system, where the forcing is parameterized and the amplitude and phase of the forcing are to be estimated jointly with the states. The proposed method is shown to be capable of estimating these model parameters with a high accuracy as well as reducing uncertainty while the state augmentation technique fails.
An optical transmission spectrum of the giant planet WASP-36 b
Creators: name: Mancini, L.
name: Kemmer, J.
name: Southworth, J.
name: Bott, K.
name: Mollière, P.
name: Ciceri, S.
name: Chen, G.
name: Henning, Th.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: FOS: Physical sciences

description: We present broad-band photometry of five transits in the planetary system WASP-36, totaling 17 high-precision light curves. Four of the transits were simultaneously observed in four passbands (g, r, i, z), using the telescope-defocussing technique, and achieving scatters of less than 1 mmag per observation. We used these data to improve the measured orbital and physical properties of the system, and obtain an optical transmission spectrum of the planet. We measured a decreasing radius from bluer to redder passbands with a confidence level of more than 5 sigma. The radius variation is roughly 11 pressure scale heights between the g and the z bands. This is too strong to be Rayleigh scattering in the planetary atmosphere, and implies the presence of a species which absorbs strongly at bluer wavelengths.
description: 11 pages, 9 figures, accepted for publication in MNRAS
On the distinguished limits of the Navier slip model of the moving contact line problem
Creators: name: Ren, Weiqing
name: Trinh, Philippe H.
name: E, Weinan
Publisher: name: arXiv
Year: 2014
Subjects: subject: Fluid Dynamics (physics.flu-dyn)
subject: FOS: Physical sciences

description: When a droplet spreads on a solid substrate, it is unclear what are the correct boundary conditions to impose at the moving contact line. The classical no-slip condition is generally acknowledged to lead to a non-integrable singularity at the moving contact line, for which a slip condition, associated with a small slip parameter, $λ$, serves to alleviate. In this paper, we discuss what occurs as the slip parameter, $λ$, tends to zero. In particular, we explain how the zero-slip limit should be discussed in consideration of two distinguished:: one where time is held constant $t = O(1)$, and one where time tends to infinity at the rate $t = O(|\log λ|)$. The crucial result is that in the case where time is held constant, the $λ\to 0$ limit converges to the slip-free equation, and contact line slippage occurs as a regular perturbative effect. However, if $λ\to 0$ and $t \to \infty$, then contact line slippage is a leading-order singular effect.
Study of morphology effects on magnetic interactions and band gap variations for 3$d$ late transition metal bi-doped ZnO nano structures by hybrid DFT calculations
Creators: name: Datta, Soumendu
name: Kaphle, Gopi Chandra
name: Baral, Sayan
name: Mookerjee, Abhijit
Publisher: name: arXiv
Year: 2015
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: Using density functional theory (DFT) based electronic structure calculations, the effects of morphology of semiconducting nano structures on the magnetic interaction between two magnetic dopant atoms as well as a possibility of tuning band gaps have been studied in case of the bi-doped (ZnO)$_{24}$ nano structures with the impurity dopant atoms of the 3$d$ late transition metals (TM) - Mn, Fe, Co, Ni and Cu. To explore the morphology effect, three different structures of the host (ZnO)$_{24}$ nano-system having different degrees of spatial confinement, have been considered : a two dimensional (2D) nanosheet, an one dimensional (1D) nanotube and a finite cage-shaped nanocluster. The present study employs hybrid density functional theory to accurately describe the electronic structure of all the systems. It is shown here that the magnetic coupling between the two dopant atoms, remains mostly anti-ferromagnetic in course of changing the morphology from the sheet geometry to the cage-shaped geometry of the host systems, except for the case of energetically most stable bi-Mn doping, which shows a transition from ferromagnetic to anti-ferromagnetic coupling with decreasing aspect ratio of the host system. The effect of the shape change, however, has a significant effect on the overall band gap variations of both the pristine as well as all the bi-doped systems, irrespective of the nature of the dopant atoms and provides a means for easy tunability of their optoelectronic properties.
description: 10 pages , 6 figures
Aizoanthemum hispanicum Linnaeus 1753
Creators: name: Jarvis, Charlie
Publisher: name: Zenodo
Year: 2007
Subjects: Biodiversity
Taxonomy
Plantae
Tracheophyta
Magnoliopsida
Caryophyllales
Aizoaceae
Aizoanthemum
Aizoanthemum hispanicum

description: Aizoon hispanicum Linnaeus, Species Plantarum 1: 488. 1753. "Habitat in Hispania." RCN: 3715. Lectotype (Peruzzi & al. in Taxon 53: 541, f. 1. 2004): [icon] " Ficoidea Hispanica annua, folio longiore Vaill. " in Dillenius, Hort. Eltham. 1: 143, t. 117, f. 143. 1732. Current name:  Aizoanthemum hispanicum L.) H.E.K. Hartmann (Aizoaceae).
description: Published as part of Jarvis, Charlie, 2007, Chapter 7: Linnaean Plant Names and their Types (part A), pp. 252-342 in Order out of Chaos. Linnaean Plant Types and their Types, London :Linnaean Society of London in association with the Natural History Museum on page 273, DOI: 10.5281/zenodo.291971
Paramesius cameroni Kieffer 1911
Creators: name: Notton, David G.
Publisher: name: Zenodo
Year: 2014
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Hymenoptera
Diapriidae
Paramesius
Paramesius cameroni

description: Paramesius cameroni Kieffer, 1911a: 767.
Valid name
Paramesius brachypterus (Thomson, 1858).
Summary of types
Lectotype ♂, BMNH number 9.927, here designated. Paralectotypes 2 ♂♂.
Primary type data
Mugdock/ 9-8; Mugdock; 445.; Paramesius / cameroni, K.; Cameron Coll./ 1910-302.; Determined by/ Dr Kieffer.
Type locality
Scotland, Mugdock.
Remarks
This species was described from at least three males. Three syntypes were located, of which one is designated a lectotype. Macek (2002) synonymized this species with P. brachypterus without seeing the type. The lectotype belongs to P. brachypterus following the interpretation of this species by Nixon (1980) and Macek (2002), so Macek’s synonymy is confirmed. The lectotype is designated to stabilise the application of the name and its synonymy. The lectotype is mounted on a card and is entire.
description: Published as part of Notton, David G., 2014, A catalogue of the types of Diapriinae (Hymenoptera, Diapriidae) at the Natural History Museum, London, pp. 1-123 in European Journal of Taxonomy 75 on page 54, DOI: 10.5852/ejt.2014.75, http://zenodo.org/record/3862773
Antiferromagnetic and Orbital Ordering on a Diamond Lattice Near Quantum Criticality
Creators: name: Plumb, K. W.
name: Morey, Jennifer
name: Rodriguez-Rivera, J. A.
name: Wu, Hui
name: Podlesnyak, A. A.
name: McQueen, T. M.
name: Broholm, C. L.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: We present neutron scattering measurements on powder samples of the spinel FeSc2S4 that reveal a previously unobserved magnetic ordering transition occurring at 11.8(2)~K. Magnetic ordering occurs subsequent to a subtle cubic-to-tetragonal structural transition which distorts Fe coordinating sulfur tetrahedra lifting the orbital degeneracy. The application of 1~GPa hydrostatic pressure appears to destabilize this Néel state, reducing the transition temperature to 8.6(8)~K and redistributing magnetic spectral weight to higher energies. The relative magnitudes of ordered $\langle m \rangle^2\!=\!3.1(2)$ and fluctuating moments $\langle δm \rangle^2\!=\!13(1)$ show that the magnetically ordered ground state of FeSc2S4 is drastically renormalized and in proximity to criticality.
description: 16 pages, 12 figures
Spin-flip reflection of electrons from a potential barrier in heterostructures
Creators: name: Pfeffer, Pawel
name: Zawadzki, Wlodek
Publisher: name: arXiv
Year: 2014
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: Spin-conserving and spin-flip opaque reflections of electrons from a potential barrier in heterostructures are described. An electric field of the barrier is considered to be the only source of energy spin splitting in the presence of spin-orbit interaction and its form is calculated in the three-level {\kp} model for a nontrival case of unbound electrons. Reflection angles and amplitudes are calculated for oblique incoming directions. It is shown that the system can serve as a source or filter of spin-polarized electron beams. Two unexpected possibilities are pointed out: a) non attenuated electron propagation in the barrier whose height exceeds the energies of incoming electrons, b) total reflection of electrons whose energies exceed barrier's height.
description: 10 pages, 3 figures
Moments and distribution of central L-values of quadratic twists of elliptic curves
Creators: name: Radziwill, Maksym
name: Soundararajan, Kannan
Publisher: name: arXiv
Year: 2014
Subjects: subject: Number Theory (math.NT)
subject: FOS: Mathematics

description: We show that if one can compute a little more than a particular moment for some family of L-functions, then one has upper bounds of the conjectured order of magnitude for all smaller (positive, real) moments and a one-sided central limit theorem holds. We illustrate our method for the family of quadratic twists of an elliptic curve, obtaining sharp upper bounds for all moments below the first. We also establish a one sided central limit theorem supporting a conjecture of Keating and Snaith. Our work leads to a conjecture on the distribution of the order of the Tate-Shafarevich group for rank zero quadratic twists of an elliptic curve, and establishes the upper bound part of this conjecture (assuming the Birch-Swinnerton-Dyer conjecture).
description: 28 pages
Comet 322P/SOHO 1: An asteroid with the smallest perihelion distance?
Creators: name: Knight, Matthew M.
name: Fitzsimmons, Alan
name: Kelley, Michael S. P.
name: Snodgrass, Colin
Publisher: name: arXiv
Year: 2016
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: FOS: Physical sciences

description: We observed comet 322P/SOHO 1 (P/1999 R1) from the ground and with the Spitzer Space Telescope when it was between 2.2 and 1.2 AU from the Sun. These are the first observations of any SOHO-discovered periodic comet by a non-solar observatory, and allow us to investigate its behavior under typical cometary circumstances. 322P appeared inactive in all images. Its lightcurve suggests a rotation period of 2.8+/-0.3 hr and has an amplitude greater than ~0.3 mag, implying a density of at least 1000 kg m$^{-3}$, considerably higher than that of any known comet. It has average colors of g'-r' = 0.52+/-0.04 and r'-i' = 0.04+/-0.09. We converted these to Johnson colors and found that the V-R color is consistent with average cometary colors, but R-I is somewhat bluer; these colors are most similar to V- and Q-type asteroids. Modeling of the optical and IR photometry suggests it has a diameter of 150-320 m and a geometric albedo of 0.09-0.42, with diameter and albedo inversely related. Our upper limits to any undetected coma are still consistent with a sublimation lifetime shorter than the typical dynamical lifetimes for Jupiter Family Comets. These results suggest that it may be of asteroidal origin and only active in the SOHO fields of view via processes different from the volatile-driven activity of traditional comets. If so, it has the smallest perihelion distance of any known asteroid.
description: Accepted by ApJL; 6 pages, 1 table, 3 figures
Aizoon paniculatum Linnaeus 1753
Creators: name: Jarvis, Charlie
Publisher: name: Zenodo
Year: 2007
Subjects: Biodiversity
Taxonomy
Plantae
Tracheophyta
Magnoliopsida
Caryophyllales
Aizoaceae
Aizoon
Aizoon paniculatum

description: Aizoon lanceolatum Linnaeus, Systema Vegetabilium, ed. 13: 392. 1774, nom. illeg. ["Habitat in Africa."] Sp. Pl. 1: 488 (1753). RCN: 3716. Replaced synonym: Aizoon paniculatum L. (1753). Neotype (Adamson in J. S. African Bot. 25: 40. 1959): Sparrman 109, Herb. Linn. No. 650.6 (LINN). Current name:  Aizoon paniculatum L. (Aizoaceae). Note: Aizoon lanceolatum appeared for the first time in 1774 where it was the third species of Aizoon, a position earlier occupied by A. paniculatum L. (1753). As the two names also share an identical diagnosis, A. lanceolatum is evidently a superfluous name for A. paniculatum.
description: Published as part of Jarvis, Charlie, 2007, Chapter 7: Linnaean Plant Names and their Types (part A), pp. 252-342 in Order out of Chaos. Linnaean Plant Types and their Types, London :Linnaean Society of London in association with the Natural History Museum on page 273, DOI: 10.5281/zenodo.291971