pinecone/core-2020-05-10-deduplication huggingface dataset:
The GEOTRACES Intermediate Data Product 2014

Highlights:\ud
• GEOTRACES releases its first integrated and quality controlled Intermediate Data Product 2014 (IDP2014).\ud
• The IDP2014 digital data are available at http://www.bodc.ac.uk/geotraces/data/idp2014/ in 4 different formats.\ud
• The eGEOTRACES Electronic Atlas at http://egeotraces.org/ provides 329 section plots and 90 animated 3D tracer scenes.\ud
• The new 3D scenes provide geographical and bathymetric context crucial for tracer assessment and interpretation.\ud
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Abstract:\ud
The GEOTRACES Intermediate Data Product 2014 (IDP2014) is the first publicly available data product of the international GEOTRACES programme, and contains data measured and quality controlled before the end of 2013. It consists of two parts: (1) a compilation of digital data for more than 200 trace elements and isotopes (TEIs) as well as classical hydrographic parameters, and (2) the eGEOTRACES Electronic Atlas providing a strongly inter-linked on-line atlas including more than 300 section plots and 90 animated 3D scenes. The IDP2014 covers the Atlantic, Arctic, and Indian oceans, exhibiting highest data density in the Atlantic. The TEI data in the IDP2014 are quality controlled by careful assessment of intercalibration results and multi-laboratory data comparisons at cross-over stations. The digital data are provided in several formats, including ASCII spreadsheet, Excel spreadsheet, netCDF, and Ocean Data View collection. In addition to the actual data values the IDP2014 also contains data quality flags and 1-σ data error values where available. Quality flags and error values are useful for data filtering. Metadata about data originators, analytical methods and original publications related to the data are linked to the data in an easily accessible way. The eGEOTRACES Electronic Atlas is the visual representation of the IDP2014 data providing section plots and a new kind of animated 3D scenes. The basin-wide 3D scenes allow for viewing of data from many cruises at the same time, thereby providing quick overviews of large-scale tracer distributions. In addition, the 3D scenes provide geographical and bathymetric context that is crucial for the interpretation and assessment of observed tracer plumes, as well as for making inferences about controlling processes
MAGIC observations and multiwavelength properties of the quasar 3C279 in 2007 and 2009

3C 279, the first quasar discovered to emit VHE gamma-rays by the MAGIC telescope in 2006, was reobserved by MAGIC in January 2007 during a major optical flare and from December 2008 to April 2009 following an alert from the Fermi space telescope on an exceptionally high gamma -ray state. The January 2007 observations resulted in a detection on January 16 with significance 5.2 sigma, corresponding to a F(&gt; 150 GeV) (3.8 \pm 0.8) \cdot 10^-11 ph cm^-2 s^-1 while the overall data sample does not show significant signal. The December 2008 - April 2009 observations did not detect the source. We study the multiwavelength behavior of the source at the epochs of MAGIC observations, collecting quasi-simultaneous data at optical and X-ray frequencies and for 2009 also gamma-ray data from Fermi. We study the light curves and spectral energy distribution of the source. The spectral energy distributions of three observing epochs (including the February 2006, which has been previously published in Albert et al. 2008a) are modeled with one-zone inverse Compton models and the emission on January 16, 2007 also with two zone model and with a lepto-hadronic model. We find that the VHE gamma-ray emission detected in 2006 and 2007 challenges standard one-zone model, based on relativistic electrons in a jet scattering broad line region photons, while the other studied models fit the observed spectral energy distribution more satisfactorily
Magnetic and quadrupole moments of neutron deficient 58-62CU isotopes

This paper reports on the ground state nuclear moments measured in Cu58-62 using collinear laser spectroscopy at the ISOLDE facility. The quadrupole moments for Cu58-60 have been measured for the first time as Q (Cu-58) = 15(3) efm(2), Q (Cu-59) = -19.3(19) efm(2), Q(Cu-60) = +11.6(12) efm(2) and with higher precision for Cu-61.62 as Q (Cu-61) = -21.1(10) efm(2), Q(Cu-62) = -2.2(4) efm(2). The magnetic moments of Cu-58.59 are measured with a higher precision as(IL)(Cu-58) = +0.570(2)(ILN) and (IL)(Cu-59) = +1.8910(9)(ILN). The experimental nuclear moments are compared to large-scale shell-model calculations with the GXPF1 and GXPF1A effective interactions, allowing the softness of the Ni-56 core to be studied. (C) 2011 Published by Elsevier B.V.status: publishe
Covariant residual entropy

A recently explored interesting quantity in AdS/CFT, dubbed ‘residual entropy’, characterizes the amount of collective ignorance associated with either boundary observers restricted to finite time duration, or bulk observers who lack access to a certain spacetime region. However, the previously-proposed expression for this quantity involving variation of boundary entanglement entropy (subsequently renamed to ‘differential entropy’) works only in a severely restrictive context. We explain the key limitations, arguing that in general, differential entropy does not correspond to residual entropy. Given that the concept of residual entropy as collective ignorance transcends these limitations, we identify two correspondingly robust, covariantly-defined constructs: a ‘strip-wedge’ associated with boundary observers and a ‘rim wedge’ associated with bulk observers. These causal sets are well-defined in arbitrary time-dependent asymptotically AdS spacetimes in any number of dimensions. We discuss their relation, specifying a criterion for when these two constructs coincide, and prove an inclusion relation for a general case. We also speculate about the implications for residual entropy. Curiously, despite each construct admitting a well-defined finite quantity related to the areas of associated bulk surfaces, these quantities are not in one-to-one correspondence with the defining regions of unknown. This has nontrivial implications about holographic measures of quantum information
Evidence for leptonic CP phase from NO ν A, T2K and ICAL: A chronological progression

We study the synergy between the long-baseline (LBL) experiments NO ν A and T2K and the atmospheric neutrino experiment ICAL@INO for obtaining the first hint of CP violation in the lepton sector. We also discuss how precisely the leptonic CP phase ( <math altimg="si1.gif" xmlns="http://www.w3.org/1998/Math/MathML"><msub><mrow><mi>δ</mi></mrow><mrow><mi mathvariant="italic">CP</mi></mrow></msub></math> ) can be measured by these experiments. The CP sensitivity is first described at the level of oscillation probabilities, discussing its dependence on the parameters – <math altimg="si2.gif" xmlns="http://www.w3.org/1998/Math/MathML"><msub><mrow><mi>θ</mi></mrow><mrow><mn>13</mn></mrow></msub></math> , mass hierarchy and <math altimg="si3.gif" xmlns="http://www.w3.org/1998/Math/MathML"><msub><mrow><mi>θ</mi></mrow><mrow><mn>23</mn></mrow></msub></math> . In particular, we discuss how the precise knowledge or lack thereof of these parameters can affect the CP sensitivity of LBL experiments. We follow a staged approach and analyze the <math altimg="si1.gif" xmlns="http://www.w3.org/1998/Math/MathML"><msub><mrow><mi>δ</mi></mrow><mrow><mi mathvariant="italic">CP</mi></mrow></msub></math> sensitivity that can be achieved at different points of time over the next 15 years from these LBL experiments alone and/or in conjunction with ICAL@INO. We find that the CP sensitivity of NO ν A/T2K is enhanced due to the synergies between the different channels and between the two experiments. On the other hand the lack of knowledge of hierarchy and octant makes the CP sensitivity poorer for some parameter ranges. Addition of ICAL data to T2K and NO ν A can exclude these spurious wrong-hierarchy and/or wrong-octant solutions and cause a significant increase in the range of <math altimg="si1.gif" xmlns="http://www.w3.org/1998/Math/MathML"><msub><mrow><mi>δ</mi></mrow><mrow><mi mathvariant="italic">CP</mi></mrow></msub></math> values for which a hint of CP violation can be achieved. In fact in parameter regions unfavourable for NO ν A/T2K, we may get the first evidence of CP violation by adding the ICAL data to these. Similarly the precision with which <math altimg="si1.gif" xmlns="http://www.w3.org/1998/Math/MathML"><msub><mrow><mi>δ</mi></mrow><mrow><mi mathvariant="italic">CP</mi></mrow></msub></math> can be measured also improves with inclusion of ICAL data
AdS 6 solutions of type II supergravity

Very few AdS 6 × M 4 supersymmetric solutions are known: one in massive IIA, and two IIB solutions dual to it. The IIA solution is known to be unique; in this paper, we use the pure spinor approach to give a classification for IIB supergravity. We reduce the problem to two PDEs on a two-dimensional space Σ. M 4 is then a fibration of S 2 over Σ; the metric and fluxes are completely determined in terms of the solution to the PDEs. The results seem likely to accommodate near-horizon limits of ( p, q )-fivebrane webs studied in the literature as a source of CFT 5 ’s. We also show that there are no AdS 6 solutions in eleven-dimensional supergravity
Towards LHC physics with nonlocal Standard Model

We take a few steps towards constructing a string-inspired nonlocal extension of the Standard Model. We start by illustrating how quantum loop calculations can be performed in nonlocal scalar field theory. In particular, we show the potential to address the hierarchy problem in the nonlocal framework. Next, we construct a nonlocal abelian gauge model and derive modifications of the gauge interaction vertex and field propagators. We apply the modifications to a toy version of the nonlocal Standard Model and investigate collider phenomenology. We find the lower bound on the scale of nonlocality from the 8 TeV LHC data to be 2.5–3 TeV
Poles in the S-matrix of relativistic Chern-Simons matter theories from quantum mechanics

An all orders formula for the S-matrix for 2 → 2 scattering in large N Chern-Simons theory coupled to a fundamental scalar has recently been conjectured. We find a scaling limit of the theory in which the pole in this S-matrix is near threshold. We argue that the theory must be well described by non-relativistic quantum mechanics in this limit, and determine the relevant Schroedinger equation. We demonstrate that the S-matrix obtained from this Schroedinger equation agrees perfectly with this scaling limit of the relativistic S-matrix; in particular the pole structures match exactly. We view this matching as a nontrivial consistency check of the conjectured field theory S-matrix
Intermediate scalings in holographic RG flows and conductivities

We construct numerically finite density domain-wall solutions which interpolate between two AdS 4 fixed points and exhibit an intermediate regime of hyperscaling violation, with or without Lifshitz scaling. Such RG flows can be realized in gravitational models containing a dilatonic scalar and a massive vector field with appropriate choices of the scalar potential and couplings. The infrared AdS 4 fixed point describes a new ground state for strongly coupled quantum systems realizing such scalings, thus avoiding the well-known extensive zero temperature entropy associated with Ad S 2 × ℝ 2 $$  Ad{S}_2\times {\mathrm{\mathbb{R}}}^2 $$ . We also examine the zero temperature behavior of the optical conductivity in these backgrounds and identify two scaling regimes before the UV CFT scaling is reached. The scaling of the conductivity is controlled by the emergent IR conformal symmetry at very low frequencies, and by the intermediate scaling regime at higher frequencies
InAs/InP single quantum wire formation and emission at 1.5  µm

Isolated InAs/InP self-assembled quantum wires have been grown using in situ accumulated stress measurements to adjust the optimal InAs thickness. Atomic force microscopy imaging shows highly asymmetric nanostructures with average length exceeding more than ten times their width. High resolution optical investigation of as-grown samples reveals strong photoluminescence from individual quantum wires at 1.5  µm. Additional sharp features are related to monolayer fluctuations of the two-dimensional InAs layer present during the early stages of the quantum wire self-assembling process.The authors gratefully acknowledge financial support by the Spanish MEC and CAM through Project Nos. TEC-2005-05781-C03-01/03, NAN2004-09109-C04-01/03, CSD2006-0019, and S-505/ESP/000200, and by the European Commission through SANDIE Network of Excellence (No. NMP4-CT-2004-500101).Peer reviewe
Extended Hückel theory for band structure, chemistry, and transport. I. Carbon nanotubes

9 pages, 10 figures, 2 tables.We describe a semiempirical atomic basis extended Hückel theoretical (EHT) technique that can be used to calculate bulk band structure, surface density of states, electronic transmission, and interfacial chemistry of various materials within the same computational platform. We apply this method to study multiple technologically important systems, starting with carbon nanotubes and their interfaces and silicon-based heterostructures in our follow-up paper [D. Kienle et al., J. Appl. Phys. 100, 043715 (2006), following paper]. We find that when it comes to quantum transport through interesting, complex heterostructures including gas molecules adsorbed on nanotubes, the Hückel band structure offers a fair and practical compromise between orthogonal tight-binding theories with limited transferability between environments under large distortion and density functional theories that are computationally quite expensive for the same purpose.The authors acknowledge the support of the Army Research\ud
Office through the Defense University Research Initiative\ud
in Nanotechnology (DURINT) program, the Army\ud
Research Office (ARO), and the Network for Computational\ud
Nanotechnology (NCN). One of the authors (J.I.C.) acknowledges\ud
support from the Spanish DGICyT and CAM under\ud
Contract Nos. MAT2004-05348-C04-2 and MAT/0440/2004,\ud
respectively.Peer reviewe
Permutation orbifolds of N=2 supersymmetric minimal models

In this paper we apply the previously derived formalism of permutation orbifold conformal field theories to N=2 supersymmetric minimal models. By interchanging extensions and permutations of the factors we find a very interesting structure relating various conformal field theories that seems not to be known in literature. Moreover, unexpected exceptional simple currents arise in the extended permuted models, coming from off-diagonal fields. In a few situations they admit fixed points that must be resolved. We determine the complete CFT data with all fixed point resolution matrices for all simple currents of all Z2-permutations orbifolds of all minimal N=2 models with k≠2mod4. © 2010 Elsevier B.V.Peer Reviewe
The dark Z ' portal: direct, indirect and collider searches

We perform a detailed study of the dark Z' portal using a generic parametrization of the Z'-quarks couplings, both for light (8-15) GeV and heavy (100-1000) GeV dark matter scenarios. We present a comprehensive study of the collider phenomenology including jet clustering, hadronization, and detector artifacts, which allows us to derive accurate bounds from the search for new resonances in dijet events and from mono-jet events in the LHC 7TeV, LHC 8TeV, and Tevatron 1.96TeV data. We also compute the dark matter relic abundance, the relevant scattering cross sections and pair-annihilation spectrum, and compare our results with the current PLANCK, Fermi-LAT and XENON100/LUX bounds. Lastly, we highlight the importance of complementary searches for dark matter, and outline the excluded versus still viable parameter space regions of the dark Z' portal.Department of EnergyConselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)Univ Calif Santa Cruz, Inst Particle Phys, Dept Phys & Santa Cruz, Santa Cruz, CA 95064 USADepartment of Energy: DE-FG02-04ER41286Web of Scienc
Nonlinear I–V characteristics of a mesoscopic conductor

We present a general theoretical formulation, based on nonequilibrium Green’s functions, for nonlinear dc transport in multiprobe mesoscopic conductors. The theory is gauge invariant and is useful for the predictions of current–voltage characteristics and the nonequilibrium charge pileups inside the conductor. We have provided a detailed comparison between the gauge invariant scattering matrix theory and our theory. We have also given several examples where the I –V curve
can be obtained analytically. The effects of exchange and correlation have been considered explicitly. © 1999 American Institute of Physics.published_or_final_versio
Does data splitting improve prediction

Data splitting divides data into two parts. One part is reserved for model selection. In some applications, the second part is used for model validation but we use this part for estimating the parameters of the chosen model. We focus on the problem of constructing reliable predictive distributions for future observed values. We judge the predictive performance using log scoring. We compare the full data strategy with the data splitting strategy for prediction. We show how the full data score can be decomposed into model selection, parameter estimation and data reuse costs. Data splitting is preferred when data reuse costs are high. We investigate the relative performance of the strategies in four simulation scenarios. We introduce a hybrid estimator that uses one part for model selection but both parts for estimation. We argue that a split data analysis is prefered to a full data analysis for prediction with some exceptions
Buried volcanic structures in the Gulf of Naples (Southern Tyrrhenian Sea, Italy) resulting from high resolution magnetic survey and seismic profiling

In this paper we present a correlation between volcanic structures and magnetic anomalies in the Gulf of Naples
(Southern Tyrrhenian Sea) based on high resolution magnetic profiling. A densely spaced grid of magnetic profiles
coupled with multichannel seismics (seismic source Watergun 15 cubic inch) was recorded in the Gulf of
Naples, representing an active volcanic area during the Late Quaternary (volcanic centers of Somma-Vesuvius,
Phlegraean Fields and Ischia and Procida islands). The dataset was collected during the oceanographic cruise
GMS00-05 which took place during October-November 2000 in the South Tyrrhenian Sea onboard of the R/V
Urania (National Research Council, Italy). Shallow volcanic structures in the subsurface of the gulf were recognized
by seismo-stratigraphic analysis of high resolution profiles; the volcanic nature of some of these structures
was inferred identifying the magnetic anomalies on a high resolution magnetic anomaly map of the gulf. Even
if qualitative, the correlations between seismic and magnetic profiles allow us to better assess the geological
structure of the Gulf of Naples
THE ASSOGEO GPS NETWORK TO MONITOR SURFACE VARIATION IN THE EMILIA ROMAGNA REGION (NORTH-CENTRAL ITALY): DATA MANAGEMENT, PRODUCTS AND PRELIMINARY RESULTS

The global positioning system (GPS), in both static and kinematic modes, allows a highly accurate
measurement of point coordinates and therefore is widely used for monitoring both slow and fast surface
deformations. The information provided by a GPS network can be used at the regional scale, to evaluate
tectonic and seismogenic structure evolutions [Hunstad et al., 1999; Pietrantonio and Riguzzi, 2004], such as
the estimation of deformation rates in the central Apennine chain [Pesci and Teza, 2007], or at larger scale,
to monitor gravitational macroscopic effects due to, for example, rock-mass collapses, landslide activations
or other instabilities [Mora et al., 2003; Tzenkov and Gospodinov, 2003; Squarzoni et al., 2005].
The accuracies of GPS measurements are generally a few millimeters for the horizontal coordinate
components and sub-centimeters for the vertical ones. In fact, the elevation is highly influenced by
atmospheric perturbations, involving zenith delays, which are difficult to be completely removed by means
of data modeling. When referring to high accuracy, GPS surveying implies the precise measurements of the
vectors between two or more receivers (baselines), the so-called relative positioning: data can be acquired on
static and rapid-static conditions, which require GPS stations to be stationary.
Several permanent GPS stations continuously operate on the Italian territory, belonging to different
institutes like IGS (International GPS Service), EUREF (European Reference Frame), ASI (Agenzia Spaziale
Italiana), INGV (Istituto Nazionale di Geofisica e Vulcanologia) and others [Serpelloni et al. 2006; Falco et
al., 2007; Devoti et al., 2008]. Due to the high efficiency of this surveying methodology, in the last few years,
the number of GPS permanent stations has rapidly increased and continues to expand; the Earth Science
Department of Siena University, for example, installed 8 new stations in 2003 to study the tectonic processes
in the Central-Northern Apennines [Cenni et al., 2004].
Also private GPS networks planned for commercial civil proposal exist; in particular the ASSOGEO
s.r.l (Italian Trimble provider), established a dense GPS network for real time positioning by means of the
VRS (Virtual Reference Station) concept [Hu et al., 2003] and work is still in progress to cover the whole
Italian territory with a mean size of about 20-50 km
Combining inland and offshore paleotsunamis evidence: the Augusta Bay (eastern Sicily, ITALY) case study

We present the geological evidence for a 4000 year-long record of repeated tsunami events along the coast of the Augusta Bay derived from the combination of inland and offshore cores data. The research was carried out through a multi-theme approach
which benefited from an long historical record that we used to guide detailed geomorphologic, geologic, and geophysical surveys,that were performed both inland and offshore. These surveys served to locate and characterize the best sites were to perform the coring collection that where studied through and several laboratory analyses. The Augusta Bay represents a unique case study
because besides showing a long record of paleotsunami events, it contains the first inland and offshore evidence for the Crete AD
365, and Santorini Late Minoan tsunamis in the central-western Mediterranean area