cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Linear and non-linear ultrasonic NDE of titanium diffusion bonds
Creators: name: Escobar-Ruiz, Edwill Alejandro
Publisher: name: Imperial College London
Year: 2014

description: Diffusion bonding is an attractive solid-state welding technique that promises weight reduction and improved performance in the aerospace industry. However, its adoption in fracture critical titanium components has been limited by the complications that macroscopic anisotropy introduces to typical ultrasonic NDE. Two strands of ultrasonic NDE, linear and non-linear acoustics, have been studied with the aim of overcoming these complications. A promising linear technique that uses the phase of reflected diffusion-bond signals to extract otherwise hidden interface information was selected for further development. The principal parameters that affect the phase analysis of ultrasonic signals were investigated and their optimisation resulted in up to an order of magnitude improvement in phase measurement reliability, even at low signal-to-noise ratios. The application of these optimised parameters without a priori knowledge of the signal arrival time was illustrated, and the sensitivity of the approach to ambient temperature and annealing effects was also explored. The original technique was susceptible to measurement error and proved impractical for typical aerospace component geometries, but these shortcomings have been overcome by the improvements and adaptations proposed here. However, it was shown that the efficacy of the technique depends on the relative acoustic impedances of the bonded media and, coupled with the sensitivity limit intrinsic to linear acoustic methods, this dependence acted to curtail the benefits of the approach and prompted the exploration of alternative techniques. Non-linear ultrasonic methods are significantly more sensitive than their linear counterparts to the imperfections likely to be present at diffusion-bonded interfaces, but suppressing extraneous contributions to the non-linear response of the interface is not trivial. An approach that succeeds in suppressing such contributions was studied and developed here. The technique, which is based on the non-collinear mixing of ultrasonic waves to generate a spectrally, modally and spatially dissociable third wave, was used to reliably characterise a set of samples whose bond quality was indeterminable using linear ultrasonic methods. Application of the technique to diffusion-bonded titanium aerospace components has been demonstrated and a significant improvement in ultrasonic NDE capability was achieved.
Additional file 1: of Multi-component gene network design as a survival strategy in diverse environments
Creators: name: Xinyue Luo
name: Ruijie Song
name: Acar, Murat
Publisher: name: figshare
Year: 2018
Subjects: subject: Biochemistry
subject: Microbiology
subject: FOS: Biological sciences
subject: Genetics
subject: Ecology
subject: 69999 Biological Sciences not elsewhere classified
subject: Plant Biology

description: Figure S1. Expression level distributions of the strains used in this study in a 2% glucose environment. Center: Expression level distributions of the 16 strains under study. Bottom corners: expression level distributions of the two reference strains: left: the gal80Δ strain (XLUYLmCdd80); right: the WT strain with PTEF-mCherry (XLUYLmC). Glucose catabolite repression and the repression from Gal80p combine to eliminate all expression from the PGAL1-YFP reporter in all strains except the gal80Δ strain. Figure S2. Fitness level measured is invariant to the initial population ratio. Fitness measurements are performed for all 16 strains in Environment D (1% galactose) using different initial fractions: red = 67% (s.d. = 7%), green = 27% (s.d. = 3%), blue = 54% (s.d. = 6%). The results are shown above. Error bars indicate s.e.m. (N = 9). No statistically significant differences were observed (using Student’s t-test with the Benjamini–Hochberg procedure to control false discovery rate at 0.05). Figure S3. Results of the competition experiment in Environment E (0.3% galactose). A. Final expression level distributions of the 16 strains. B. Average PGAL1-YFP expression level of the 16 strains. Expression levels are normalized to the expression level of the reference strain in the same sample. Error bars indicate s.e.m. (N = 9). Stars indicate statistically significant differences from wild-type strain as determined by a two-tailed Student’s t-test (Bonferroni-corrected p-value: ****: p
NICER Detects a Soft X-ray Kilohertz Quasi-periodic Oscillation in 4U 0614+09
Creators: name: Bult, Peter
name: Altamirano, Diego
name: Arzoumanian, Zaven
name: Cackett, Edward M.
name: Chakrabarty, Deepto
name: Doty, John
name: Enoto, Teruaki
name: Gendreau, Keith C.
name: Guillot, Sebastien
name: Homan, Jeroen
name: Jaisawal, Gaurava K.
name: Lamb, Frederick K.
name: Ludlam, Renee M.
name: Mahmoodifar, Simin
name: Markwardt, Craig
name: Okajima, Takashi
name: Price, Sam
name: Strohmayer, Tod E.
name: Winternitz, Luke
Publisher: name: arXiv
Year: 2018
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: We report on the detection of a kilohertz quasi-periodic oscillation (QPO) with the Neutron Star Interior Composition Explorer (NICER). Analyzing approximately 165 ks of NICER exposure on the X-ray burster 4U 0614+09, we detect multiple instances of a single-peak upper kHz QPO, with centroid frequencies that range from 400 Hz to 750 Hz. We resolve the kHz QPO as a function of energy, and measure, for the first time, the QPO amplitude below 2 keV. We find the fractional amplitude at 1 keV is on the order of 2% rms, and discuss the implications for the QPO emission process in the context of Comptonization models.
description: proof correction applied. 7 pages, 3 figures, 1 table, accepted for publication in ApJ Letters
Polaron Variational Methods In The Particle Representation Of Field Theory : II. Numerical Results For The Propagator
Creators: name: Rosenfelder, R.
name: Schreiber, A. W.
Publisher: name: arXiv
Year: 1995
Subjects: subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: For the scalar Wick-Cutkosky model in the particle representation we perform a similar variational calculation for the 2-point function as was done by Feynman for the polaron problem. We employ a quadratic nonlocal trial action with a retardation function for which several ansätze are used. The variational parameters are determined by minimizing the variational function and in the most general case the nonlinear variational equations are solved numerically. We obtain the residue at the pole, study analytically and numerically the instability of the model at larger coupling constants and calculate the width of the dressed particle.
description: 25 pages standard LaTeX, 9 uuencoded postscript figures embedded with psfig.sty
POMDP-based execution models for probabilistic programs with partial observability
Creators: name: Gehnen, Christina
Publisher: name: RWTH Aachen University
Year: 2022

description: Masterarbeit, RWTH Aachen University, 2022; Aachen : RWTH Aachen University 1 Online-Ressource: Illustrationen (2022). = Masterarbeit, RWTH Aachen University, 2022
description: Published by RWTH Aachen University, Aachen
Regularity in the distribution of superclusters?
Creators: name: Kerscher, Martin
Publisher: name: arXiv
Year: 1998
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We use a measure of clustering derived from the nearest neighbour distribution and the void probability function to distinguish between regular and clustered structures. This measure offers a succinct way to incorporate additional information beyond the two-point correlation function. Application to a supercluster catalogue by Einasto et al. (1997) reveals no clustering in the distribution of superclusters. However, we show that this supercluster catalogue is severely affected by construction effects. Taking these biases into account we still find some indications for regularity on the largest scales, but the significance is only at the one-sigma level.
description: 6 pages, Latex, 8 eps-figures included, using aa.cls and epsf.sty; A&A accepted
Comment on ``Relativistic cluster dynamics of nucleons and mesons. II. Formalism and examples''
Creators: name: Stadler, A.
name: Tjon, J. A.
Publisher: name: arXiv
Year: 1995
Subjects: subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: In a recent paper [Phys.\ Rev.\ C{\bf 49}, 2142 (1994)], Haberzettl presented cluster N-body equations for arbitrarily large systems of nucleons and mesons. Application to the three-nucleon system is claimed to yield a new kind of three-nucleon force. We demonstrate that these three-nucleon equations contain double counting.
description: 6 pages in Revtex 3.0, 6 Postscript figures. Accepted for publication in Phys. Rev. C
Serpula Linnaeus, 1758, gen. nov.
Creators: name: Linnaeus, Carolus
Publisher: name: Laurentius Salvius
Year: 1758
Subjects: Biodiversity
Taxonomy
Animalia
Annelida
Polychaeta
Sabellida
Serpulidae
Serpula

description: Serpula [gen. nov.]
Animal Teredo. Column. aqv. t. 22. f. 4. Ellis cor. t. 38. f. 2.
Testa univalvis, tubulosa, adhaerens, saepe isthmis integris passim intercepta.
description: Published as part of Linnaeus, Carolus, 1758, Systema Naturae per regna tria naturae: secundum classes, ordines, genera, species, cum characteribus, differentiis, synonymis, locis, Stockholm :Laurentius Salvius on page 786, DOI: 10.5962/bhl.title.542, http://zenodo.org/record/3922206
Additional file 1: of Geophysical constraints on microbial biomass in subseafloor sediments and coal seams down to 2.5Â km off Shimokita Peninsula, Japan
Creators: name: Tanikawa, Wataru
name: Tadai, Osamu
name: Morono, Yuki
name: Kai-Uwe Hinrichs
name: Inagaki, Fumio
Publisher: name: figshare
Year: 2018
Subjects: subject: Biophysics
subject: Biochemistry
subject: Cell Biology
subject: 59999 Environmental Sciences not elsewhere classified
subject: FOS: Earth and related environmental sciences
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: Ecology
subject: FOS: Biological sciences
subject: 69999 Biological Sciences not elsewhere classified
subject: Inorganic Chemistry

description: Figure S1. Relationship between cell concentration and modal pore size. No meaningful correlation is obtained. Figure S2. Depth-tortuosity profile at Site C0020. Tortuosity was calculated from Eq. (6) using mercury injection capillary pressure (MICP) data. The evaluated tortuosity was used for permeability calculations. The tortuosity estimated from Eq. (6) ranged from 1.48 to 2.16, and decreased with increasing depth, probably due to the tortuosity having a strong dependence on porosity. Table S1. General information and physical properties for core samples collected at Site C0020A. Table S2. Permeability calculated from Eqs. (5) and (6) using pore size distribution data. Data are plotted in Fig. 9. Table S3. In-situ porosity and permeability plotted in Fig. 5a and b. (DOC 2321 kb)
Smoothed Particle Hydrodynamics Calculations of Stellar Interactions
Creators: name: Rasio, Frederic A.
name: Lombardi, James C.
Publisher: name: arXiv
Year: 1998
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: Smoothed Particle Hydrodynamics is a multidimensional Lagrangian method of numerical hydrodynamics that has been used to tackle a wide variety of problems in astrophysics. Here we develop the basic equations of the SPH scheme, and we discuss some of its numerical properties and limitations. As an illustration of typical astrophysical applications, we discuss recent calculations of stellar interactions, including collisions between main sequence stars and the coalescence of compact binaries.
description: 21 pages, invited review paper to appear in Journal of Computational and Applied Mathematics (JCAM). Fig. 2 is available from the authors in hardcopy form only. Revised, slightly abbreviated version
PoMiN: A Post-Minkowskian $N$-Body Solver
Creators: name: Feng, Justin
name: Baumann, Mark
name: Hall, Bryton
name: Doss, Joel
name: Spencer, Lucas
name: Matzner, Richard
Publisher: name: arXiv
Year: 2018
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: In this paper, we introduce PoMiN, a lightweight $N$-body code based on the post-Minkowskian $N$-body Hamiltonian of Ledvinka et. al., which includes general relativistic effects up to first order in Newton's constant $G$, and all orders in the speed of light $c$. PoMiN is written in C and uses a fourth-order Runge-Kutta integration scheme. PoMiN has also been written to handle an arbitrary number of particles (both massive and massless), with a computational complexity that scales as $O(N^2)$. We describe the methods we used to simplify and organize the Hamiltonian, and the tests we performed (convergence, conservation, and analytical comparison tests) to validate the code.
description: 11 pages w/ 3 figures. Revised to match published version
Additional file 1 of B-assembler: a circular bacterial genome assembler
Creators: name: Huang, Fengyuan
name: Xiao, Li
name: Gao, Min
name: Vallely, Ethan J.
name: Dybvig, Kevin
name: Atkinson, T. Prescott
name: Waites, Ken B.
name: Chong, Zechen
Publisher: name: figshare
Year: 2022
Subjects: subject: Microbiology
subject: FOS: Biological sciences
subject: Genetics

description: Additional file 1. Supplementary text, tables and figures supporting the main text.
Quantum dynamics of small numbers of ions in a penning trap
Creators: name: Stutter, Graham
Publisher: name: Imperial College London
Year: 2015

description: Laser-cooled trapped ions are one of the main systems used in experiments in the fields of quantum optics and quantum information. There are two commonly-used types of ion trap, the radiofrequency trap and the Penning trap. In general, the RF trap has been more widely used in quantum information experiments, meaning that the set of experimental tools for conducting these types of experiments in a Penning trap is currently less complete. The aim of the work presented in this thesis is to increase this array of tools. Our experiment uses 40Ca+ ions in a Penning trap alongside lasers. Spectroscopy has been performed on single Doppler cooled ions, and on ions that have been prepared close to their ground state of motion using a multiple-stage sideband cooling technique resulting in an average phonon occupation number of $\nzbar = 0.029\pm 0.011$ from an initial $\nzbar \approx 24$. This corresponds to a quantum ground state population of $97\%$, which is close to the sideband cooling limit in our system. An axial heating rate measurement of $\dot{\bar{n}}_z=\SI{0.56\pm0.52}{\per\second}$ has also been obtained, which is the lowest recorded to date, due in part to the large dimensions of our trap. Additionally improved control of the Penning trap radial motion has been demonstrated and the average phonon occupation number of the modified cyclotron motion has been reduced from $\ncbar\approx150$ after Doppler cooling to $\ncbar=0.6$ after sideband cooling. Some preliminary single-ion coherent operations have also been performed. In the future we hope that this system of ground state cooled ions in a Penning trap can be used to generate highly-entangled states in two or more ions, with a view to performing simple quantum error-correcting codes and eventually an analogue quantum simulation of spin systems.
title: ADCO, Septième cartulaire de Saint-Étienne de Dijon (1661-1665), Cart. 29 (G 134), 996 folios, f. 0333
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/2012
name: Petot, Frédéric
Publisher: name: NAKALA - https://nakala.fr (Huma-Num - CNRS)
publisherIdentifier: https://ror.org/04ces3204
publisherIdentifierScheme: ROR
Year: 2020
Subjects: subject: LaMOP
subject: Laboratoire de Médiévistique Occidentale de Paris
subject: cartulaire
subject: Corpus Burgundiae Medii Aevi
subject: Chartes de la Bourgogne du Moyen Âge

description: Septième cartulaire de Saint-Étienne de Dijon (1661-1665), Archives départementales de la Côte-d'Or, Cart. 29 (G 134), 996 folios, f. 0333, Numérisation en mode image.
description: Relation: http://www.cbma-project.eu/
description: Bibliographic citation: Septième cartulaire de Saint-Étienne de Dijon (1661-1665), Archives départementales de la Côte-d'Or, Cart. 29 (G 134), 996 folios, f. 0333, in Projet CBMA - Corpus Burgundiae Medii Aevi [Ressource en ligne], https://manuscrits.cbma-project.eu/
description: Provenance: abbaye Saint-Étienne de Dijon
description: Provenance: http://www.wikidata.org/entity/Q15945019
Additional file 3: of Greater family size is associated with less cancer risk: an ecological analysis of 178 countries
Creators: name: Wenpeng You
name: RĂźhli, Frank
name: Henneberg, Renata
name: Henneberg, Maciej
Publisher: name: figshare
Year: 2018
Subjects: subject: Space Science
subject: Medicine
subject: Genetics
subject: FOS: Biological sciences
subject: Evolutionary Biology
subject: Ecology
subject: Sociology
subject: FOS: Sociology
subject: Developmental Biology
subject: 60506 Virology
subject: Computational Biology

description: Table S1. Pearson, Nonparametric and partial correlation between household size and each cancer variable and confounder. (DOCX 24 kb)
SPA+RPA approach to canonical and grandcanonical treatments of nuclear level densities
Creators: name: Agrawal, B. K.
name: Sahu, P. K.
Publisher: name: arXiv
Year: 1995
Subjects: subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: Using an exactly solvable pairing model Hamiltonian in the static path approximation together with small-amplitude quantal fluctuation corrections in random phase approximation (SPA+RPA), we have analyzed the behaviour of canonical (number projected) and grandcanonical treatments of nuclear level densities as a function of temperature and number of particles. For small particle numbers at a low temperature, we find that though the grandcanonical partition function in SPA+RPA approach is quite close to its exact value, the small errors in its estimation causes significant suppression of level density obtained using number projected partition function. The results are also compared with the smoothed out exact values of level density. Within this model study, it appears that due to saddle point approximation to multiple Laplace-back transform, the grandcanonical treatment of level density at low temperature may be reliable only for relatively large number of particles.
description: 11 pages(LaTex), figure available by the author, accepted for publication in Physics Letters B
ZHED cruise,Thalia R/V
Creators: name: TRONCZYNSKI Jacek
Publisher: name: Sismer
Year: 1999

description: Étude de la dispersion des herbicides dissous en zone côtière de la Loire.Intégration des données au modèle hydrodynamique 3D de la zone Nord du plateau de Golfe de Gascogne.Prélèvements et traitements des échantillons dans les deux profils dans le panache et deux profils verticaux. Le projet de rattachement est une étude contractuelle Agence de l'eau Loire-Bretagne.
Engineering design principles of neural fibres
Creators: name: Neishabouri, Mohammad Ali
Publisher: name: Imperial College London
Year: 2014

description: Our nervous system, like most information processing systems, faces 4 fundamental physical constraints. It has to transmit information quickly (1. time) and reliably (2. noise) while keeping its energy consumption (3. energy) and size/weight (4. spatial scale) at a minimum, to support the behaviourally determined fitness of the organism. These constraints are likely to enforce trade-offs to be made in the evolution of the nervous system. Taking this view, I investigated myelinated and unmyelinated axons across systems and species. I developed user interfaces and simulation methods for the Modigliani stochastic simulation software, and made a number of findings highlighted in the following. Myelinated axons make up the majority of long-range connections in CNS and PNS. I derived size-dependent relationships for metabolic costs of action potentials in myelinated axons. The high density of sodium channels at Nodes of Ranvier set lower limits on myelinated axons’ outer diameter (0.3 μm), which is 3-fold that for unmyelinated axons. In contrast, thin, unmyelinated axons make up most of the local (cortical) connectivity. Using a variety of axon models and detailed models of synaptic calcium dynamics and vesicle release, I showed that the waveform of action potentials undergoes random changes whilst traveling along thin unmyelinated axons. These fluctuations translate into synaptic response variability. The diameter of unmyelinated axons sets energetic limits to signalling, and I derived diameter-dependent relationships for the maximum rate of burst and sustained firing. The latter depends on the density of pumps and metabolic cost of action potentials, but is counter intuitively independent of axon diameter. My findings provide insights and scaling-relationships that relate the 4 fundamental design constraints for wiring brains. They allow us to quantitatively predict structure-function relationships, and form a basis for principled treatments of nerve disorders. My findings provide insights and scaling-relationships that relate the 4 fundamental design constraints for wiring brains. They allow us to quantitatively predict structure-function rela- tionships, and form a basis for principled treatments of nerve disorders.
Determining Bias with Cumulant Correlators
Creators: name: Szapudi, Istvan
Publisher: name: arXiv
Year: 1998
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: The first non-trivial cumulant correlator of the galaxy density field $Q_{21}$ is examined from the point of view of biasing. It is shown that to leading order it depends on two biasing parameters $b$, and $b_2$, and on $q_{21}$, the underlying cumulant correlator of the mass. As the skewness $Q_3$ has analogous properties, the slope of the correlation function $-γ$, $Q_3$, and $Q_{21}$ uniquely determine the bias parameter on a particular scale to be $b = γ/6(Q_{21}-Q_3)$, when working in the context of gravitational instability with Gaussian initial conditions. Thus on large scales, easily accessible with the future Sloan Digital Sky Survey and the 2 Degree Field Survey, it will be possible to extract $b$, and $b_2$ from simple counts in cells measurements. Moreover, the higher order cumulants, $Q_N$, successively determine the higher order biasing parameters. From these it is possible to predict higher order cumulant correlators as well. Comparing the predictions with the measurements will provide internal consistency checks on the validity of the assumptions in the theory, most notably perturbation theory of the growth of fluctuations by gravity and Gaussian initial conditions. Since the method is insensitive to $Ω$, it can be successfully combined with results from velocity fields, which determine $Ω^{0.6}/b$, to measure the total density parameter in the universe.
description: 4 pages, submitted to MNRAS pink pages
Quantification of Porous Implants and Bone Ingrowth using µCT
Creators: name: Kim, Taek Bo
Publisher: name: Imperial College London
Year: 2014

description: Two of the key challenges in determining the relative merits of porous implants are the objective quantification of their open pore networks and bone growth into the pores. The gold-standard currently employed to quantify bone ingrowth is histomorphometry which can identify different cell types and provide information on bone quality, but it is a 2D measure that samples a very small region. With recent advances in X-ray micro-computed tomography technology (µCT) improving resolution and image quality, µCT offers researchers a new perspective on evaluating bone ingrowth into implants. µCT allows direct 3D imaging and measurements of implants and bone structures that can also be non-destructive, allowing pre- and post-operative comparisons. However, quantification of images from µCT datasets is not fully standardised leading to differing methods between researchers. In particular there is no accepted objective method to identify the region-of-interest positioning and size. In this thesis, a novel approach was developed to address this problem by creating a contralateral limb model as a template for quantification of the operated limb. This model was created by first averaging many normal contralateral limbs. The model was then applied to operated limbs, enabling the automated positioning and size of the volume-of-interest selection for quantification. This in turn allows the objective quantification of bone ingrowth into implants, e.g. a 3D measure of bone ingrowth volume fraction and 3D curvature of partially healed bone, both of which were developed by application of the model. These are used in conjunction with complementary histomorphometric analyses. This new technique was applied to two case studies, looking at the bone ingrowth over time in a Ti implant and in a sol-gel derived bioactive glass scaffold. Early bone ingrowth into porous Ti is an important factor in the successful long-term bone fixation of the implant, while in porous bioactive glasses; it is the first stage of bony defect regeneration. The Ti implants were created by a process called selective laser melting, an exciting additive manufacturing technique that allows precise control of the final structure. The Ti implants were separately studied from a commercial view-point, resulting in the development of a novel non-destructive method of monitoring 3D porous structures during a series of cleaning procedures.
Magnetically tunable Feshbach resonances in ultracold gases of europium atoms and mixtures of europium and alkali-metal atoms
Creators: name: Zaremba-Kopczyk, Klaudia
name: Żuchowski, Piotr S.
name: Tomza, Michał
Publisher: name: arXiv
Year: 2018
Subjects: subject: Atomic Physics (physics.atom-ph)
subject: Quantum Gases (cond-mat.quant-gas)
subject: Chemical Physics (physics.chem-ph)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We investigate magnetically tunable Feshbach resonances between ultracold europium atoms and between europium and alkali-metal atoms using multichannel quantum scattering calculations. For ultracold gases of europium atoms both homonuclear $^{153}$Eu+$^{153}$Eu and heteronuclear $^{151}$Eu+$^{153}$Eu systems are studied. Calculations for mixtures of europium and alkali-metal atoms are carried out for prototype systems of $^{153}$Eu+$^{87}$Rb and $^{153}$Eu+$^7$Li. We analyze the prospects for the control of scattering properties, observation of quantum chaotic behavior, and magnetoassociation into ultracold polar and paramagnetic molecules. We show that favorable resonances can be expected at experimentally feasible magnetic field strengths below 1000$\,$G for all investigated atomic combinations. For Eu atoms, a rich spectrum of resonances is expected as a result of the competition between relatively weak short-range spin-exchange and strong long-range magnetic dipole-dipole interactions, where the dipolar interaction induces measurable resonances. A high density of resonances is expected at magnetic field strengths below 200$\,$G without pronounced quantum chaos signatures. The present results may be useful for the realization and application of dipolar atomic and molecular quantum gases based on europium atoms in many-body physics.
description: 13 pages, 8 figures, 2 tables
Serpula spirillum Linnaeus, 1758, spec. nov.
Creators: name: Linnaeus, Carolus
Publisher: name: Laurentius Salvius
Year: 1758
Subjects: Biodiversity
Taxonomy
Animalia
Annelida
Polychaeta
Sabellida
Serpulidae
Serpula
Serpula spirillum

description: Serpula spirillum [spec. nov.]
S. testa regulari spirali orbicula pellucida, anfractibus teretibus sensimque minoribus.
Planc. conch. t. 1. f. 8.
Habitat in Oceano super Sertularias & Zoophyta alia.
Differt a sequenti, cui simillima, quod triplo minor; quod pellucida, nec opaca; quod ad latus inferius vix maniseste canaliculata; quodque anfractus omnino teretes, nec a latere centrum respiciente obsolete canaliculati.
description: Published as part of Linnaeus, Carolus, 1758, Systema Naturae per regna tria naturae: secundum classes, ordines, genera, species, cum characteribus, differentiis, synonymis, locis, Stockholm :Laurentius Salvius on page 786, DOI: 10.5962/bhl.title.542, http://zenodo.org/record/3922206
Relativistic Two-Body Processes in Axial-Charge Transitions
Creators: name: Izquierdo, E. D.
name: Barenboim, G.
name: Gattone, A. O.
Publisher: name: arXiv
Year: 1995
Subjects: subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: We study the contribution of two-body meson-exchange processes to axial charge transitions for nuclei in the lead, tin and oxygen regions. We conduct calculations in the Dirac-Hartree (the Walecka model) and the relativistic Hartree (where the full one-nucleon-loop effects are included) approximations. We present results indicating that one- and two-body processes enhance the matrix elements of the axial-charge operator by some (100+-20)% in all three regions studied. This agrees well with the fit of eighteen first-forbidden beta-decay transitions conducted by Warburton in the lead region. We also discuss some sensitivities present in the calculation.
description: 23 pages, RevTeX format, 5 PostScript figures available on request
ZOE 3 cruise,Coriolis R/V
Creators: name: EISSEN Jean-Philippe
Publisher: name: Sismer
Year: 1984

description: Le programme général ZOE a pour but la reconnaissance géologique et géophysique des zones économiques françaises du Pacifique et l'établissement d'un inventaire des potentialités de ces zones. Objectifs de ZOE3 : Compléter la couverture bathymétrique, magnétique et sismique des marges ouest et est Calédoniennes et, au sud, de la jonction avec la ride de Norfolk ; Etudier la morphologie et la tectonique de ces ensembles ; Localiser et évaluer l'épaisseur des formations et remplissages sédimentaires.
ZOE 501 cruise,Alis R/V
Creators: name: MISSEGUE François
Publisher: name: Sismer
Year: 1990

description: Les campagnes ZOE500 ont pour but de compléter la reconnaissance de la ZEE de Nouvelle Calédonie afin d'homogénéiser la densité des mesures de sorte qu'il soit possible d'établir les cartes bathymétrique et magnétique de l'aire hors lagons et de préciser et situer l'ensemble des anomalies structurales pouvant exister dans cette zone. La campagne ZOE 501 a permis de préciser les limites Nord du Bassin Ouest Calédonien, mettre en évidence une série de six monts sous-marins culminants entre 1500 et 2200 m de profondeur dans une zone considérée comme relativement monotone de profondeur variant autour de 4200m. Ces monts sous-marins semblent être des édifices volcaniques soulignés par d'importantes anomalies magnétiques de type dipôles.
Nearly Kahler geometry in six dimensions
Creators: name: Morris, Dave
Publisher: name: Imperial College London
Year: 2014

description: This thesis is an overview of the geometry of nearly Kähler six-manifolds. A nearly Kähler structure on a manifold M is a special kind of non-integrable Hermitian structure (g,J) quite different from a Kähler structure. Dimension six is particularly interesting due to connections with the exceptional holonomy group G_2 in dimension seven. Moreover, the classification in arbitrary dimension is reducible to that in dimension six, where there are only four known examples, homogeneous structures on S^6, S^3 X S^3, CP^3 and the variety of flags in C^3. With this background, we review the geometry of six dimensional nearly Kähler manifolds and explore examples. We prove that every nearly Kähler six-manifold (M,g,J) is Einstein, establish the connection with G_2 geometry and prove an important uniqueness theorem for complete nearly Kähler six-manifolds. This final result is particularly important for the consideration of group actions: if (M,g,J) is a complete nearly Kähler six-manifold not isometric to a round sphere and G is a group of isometries of (M,g), then G preserves J also. Nearly Kähler six-manifolds with a large degree of symmetry are studied in some depth in this thesis. We review the works of Butruille and Podestà-Spiro where a group of isometries acts transitively and with codimension one, respectively. The former problem is solved completely, producing just the four examples alluded to above. In the latter situation, M must be one of S^6, S^3 X S^3 or projective 3-space, and SU(3) X SU(3) is the only interesting group that can act. The classification of nearly Kähler structures on M is reduced to a system of non-linear ODE which, following Podestà-Spiro, we make the first steps in analysing. The work falls short of a classification of complete cohomogeneity one nearly Kähler six-manifolds and we conclude with a summary of the work remaining to be done in this direction.
Reminiscences of Gary Hart 1988
Publisher: name: Columbia University
Year: 2020
Subjects: Legislators--California
Presidents--Election--1968.--United States

description: Education at Stanford and Harvard; first memories of Allard K. Lowenstein; recollections of Lowenstein as dormitory advisor at Stanford; work on Lowensteins̀ Congressional campaign, 1969; memories of Lowenstien in Mississippi, 1966; presidential campaign, 1968, and recollection of Lowenstein encounter with Eugene McCarthy; Lowensteins̀ reaction to assassinatin of Robert F. Kennedy; Lowensteins̀ habitual lateness, observations on and explanation for; Lowensteins̀ mentor-mentee relationships; last encounter with Lowenstein; reflections on Lowensteins̀ personality
ZOE 502 cruise,Alis R/V
Creators: name: MOLLARD Lucien
Publisher: name: Sismer
Year: 1990

description: La campagne ZOE 502 a couvert la partie ouest/nord-ouest de la ZEE, montrant généralement des fonds assez faibles, aux reliefs peu accusés. La ride de Lord Howe apparait une zone où le gradient magnétique est fortement perturbé. L'enregistrement bathymétrique de trois petits édifices ressemblant à des pointements volcaniques conforterait l'hypothèse d'un alignement de type point chaud sur cette structure.
Reminiscences of Gardner Jackson, 1955
Publisher: name: Columbia University
Year: 2021
Subjects: Journalists
Journalism
Sacco-Vanzetti Trial, Dedham, Mass., 1921
New Deal, 1933-1939

description: Youth, family background, education; newspaper reporter, Boston and Washington; Sacco-Vanzetti defense; Mooney report; Bonus Army; Agricultural Adjustment Administration; New Deal; liberalism in the 1930s, labor movement; impressions of Henry Wallace, Claude Wickard, Herbert Parisius, John L. Lewis, Felix Frankfurter, Louis D. Brandeis, Jerome Frank, Alger Hiss, Drew Pearson, Arthur Schlesinger
Description of inclusive scattering of few_GeV electrons from finite A nuclei and nuclear matter
Creators: name: Rinat, A. S.
name: Taragin, M. F.
Publisher: name: arXiv
Year: 1995
Subjects: subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: We study $eA$ scattering in a model where the total nuclear structure function is a convolution of components $W_N$ for an isolated nucleon and $W_{\NA}$ for a nucleus composed of point-nucleons. $W_N$ is represented by its elastic and lowest-energy inelastic parts, while $W_{\NA}$ is computed from its asymptotic limit, supplemented by final state interactions due to binary collisions between the knocked-out and core nucleons. $(q/M)W_{\NA}$ per nucleon appears to be practically independent of mass number $A$ and momentum transfer $q$. Consequently, predicted inclusive cross sections per nucleon for given kinematic conditions hardly depend on the target and the same can be extracted from the data. Exceptions are low energy loss regions, where relatively small cross sections are shown to be sensitive to details of the single nucleon momentum distribution and to FSI, involving multiple collisions. The agreement with the data is good.
description: 15 pages, uuencoded PS files for text and figs.file part1 of 2 parts
Driving unmodelled gravitational-wave transient searches using astrophysical information
Creators: name: Bacon, P.
name: V., Gayathri
name: Chassande-Mottin, E.
name: Pai, A.
name: Salemi, F.
name: Vedovato, G.
Publisher: name: arXiv
Year: 2018
Subjects: subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: Transient gravitational-wave searches can be divided into two main families of approaches: modelled and unmodelled searches, based on matched filtering techniques and time-frequency excess power identification respectively. The former, mostly applied in the context of compact binary searches, relies on the precise knowledge of the expected gravitational-wave phase evolution. This information is not always available at the required accuracy for all plausible astrophysical scenarios, e.g., in presence of orbital precession, or eccentricity. The other search approach imposes little priors on the targetted signal. We propose an intermediate route based on a modification of unmodelled search methods in which time-frequency pattern matching is constrained by astrophysical waveform models (but not requiring accurate prediction for the waveform phase evolution). The set of astrophysically motivated patterns is conveniently encapsulated in a graph, that encodes the time-frequency pixels and their co-occurrence. This allows the use of efficient graph-based optimization techniques to perform the pattern search in the data. We show in the example of black-hole binary searches that such an approach leads to an averaged increase in the distance reach (+7-8\%) for this specific source over standard unmodelled searches.
description: 11 pages, 10 figures, 1 table. DCC LIGO number LIGO-P1800100. Published in Physical Review D
Triggered Star Formation in the LMC4/Constellation III Region of the Large Magellanic Cloud
Creators: name: Efremov, Yuri
name: Elmegreen, Bruce
Publisher: name: arXiv
Year: 1998
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: The origin of a regular, 600 pc-long arc of young stars and clusters in the Constellation III region of the Large Magellanic Cloud is considered. The circular form of this arc suggests that the prestellar gas was uniformly swept up by a central source of pressure. In the center of the arc are six $\sim30$ My old A-type supergiant stars and a Cepheid variable of similar age, which may be related to the source of this pressure. We calculate the expansion of a bubble around a cluster of this age, and show that it could have triggered the formation of the arc at the right time and place. Surrounding the central old stars and extending well outside the young arc is the LMC4 superbubble and giant HI shell. We show how this superbubble and shell could have formed by the continued expansion of the 15 My old cavity, following star formation in the arc and the associated new pressures. The age sequence proposed here was not evident in the recent observations by Olsen et al. and Braun et al. because the first generation stars in the center of the LMC superbubble are relatively faint and scarce compared to the more substantial population of stars less than 15 My old that formed throughout the region in a second generation. These considerations lead to an examination of the origin of the LMC4/Constellation III region and other large rings in the LMC and other galaxies. Their size and circularity could be the result of low galactic shear and a thick disk, with several generations of star formation in their interiors now too faint to see.
description: 13 pages, 4 figures
Serpula spirorbis Linnaeus, 1758, spec. nov.
Creators: name: Linnaeus, Carolus
Publisher: name: Laurentius Salvius
Year: 1758
Subjects: Biodiversity
Taxonomy
Animalia
Annelida
Polychaeta
Sabellida
Serpulidae
Serpula
Serpula spirorbis

description: Serpula spirorbis [spec. nov.]
S. testa regulari spirali orbiculata, anfractibus supra introrsum subcanaiiculatis sensimque minoribus.
It. wgoth. t. 170.
Planc. conch. 18. n. 3.
Gvalt. test. t. 10. f. O.
List. conch. 4. s. 3. t. 2.
Habitat in Oceani & Pelagi Fucis, Zoophytis.
description: Published as part of Linnaeus, Carolus, 1758, Systema Naturae per regna tria naturae: secundum classes, ordines, genera, species, cum characteribus, differentiis, synonymis, locis, Stockholm :Laurentius Salvius on page 787, DOI: 10.5962/bhl.title.542, http://zenodo.org/record/3922206
title:  Verso una pratica Cooperativa: il ruolo del ‘carattere’, della ‘comunità’ e dell’‘immaginazione’ nel pensiero cooperativo
Creators: name: Golan  , Yaron
Publisher: name: RomaTrE-Press
Year: 2020

description: Il capitolo racconta la nascita del modello cooperativo britannico, emerso in un contesto di sconvolgimento sociale e politico. L’avvento della rivoluzione industriale ha stravolto i modelli di produzione tradizionali e rielaborato i concetti economici. I primi cooperatori hanno sottolineato come la nuova società, creata con la nascita del capitalismo, fosse incongruente con la natura umana e quindi elaborata inevitabilmente da persone con un ‘carattere’ debole. I primi teorici della cooperazione avevano posizioni razionaliste e utopiche che, oggi, possono sembrare anacronistiche, ma si sono dimostrati audaci nel ridisegnare un nuovo mondo basato sul potenziale umano. Il capitolo esamina il linguaggio dei primi cooperatori britannici, con l’obiettivo di comprendere cosa sia effettivamente il ‘carattere cooperativo’, concetto fondamentale per riportare l’economia al bene comune.
description: Cooperative bene comune
ZOE 503 cruise,Alis R/V
Creators: name: DUPONT Jacques
Publisher: name: Sismer
Year: 1991

description: Réaliser un complément d'étude pour améliorer et compléter nos connaissances de la morphologie et des champs physiques terrestres dans le périmètre de la zone économique afin de préciser et situer l'ensemble des structures pouvant exister dans cette zone. Les campagnes a la mer ZOE501, ZOE502, ZOE503 et ZOE504 avaient pour but, soit de densifier les mesures déjà réalisées dans certaines parties de la zone économique, soit d'établir une couverture complète de vastes périmètres qui n'avaient jamais été étudies. Au cours de ces quatre campagnes, environ 70.000 points de mesure ont été effectués et la couverture générale de la zone économique présente une densité de mesures relativement homogène (carte 8). La totalité des données sont stockées dans la banque de données géologiques et géophysiques Geomer.
Atomic scale simulation of irradiated nuclear fuel
Creators: name: Cooper, Michael
Publisher: name: Imperial College London
Year: 2015

description: Atomic scale simulations have been performed investigating various phenomena governing nuclear fuel performance during reactor operation and during post irradiation storage or disposal. Following a review of some of the key features of irradiated nuclear fuel, such as fission product distribution, two key factors were identified as the focus for this investigation: i) the role of uranium dioxide non-stoichiometry and ii) the effect of temperature. The former has been carried out using a previous pair potential model, whilst a new many-body potential was developed to enable temperature effects to be studied over the full range of temperatures of interest. Secondary oxide precipitates are known to exist in irradiated nuclear fuel with Ba, Sr and Zr precipitating to form the perovskite (Ba,Sr)ZrO3 grey phase. The binary BaO, SrO and ZrO2 may also be formed. The precipitation enthalpies of these oxides were predicted as a function of hyper-stoichiometry. Additionally, CrUO4 can also precipitate from Cr-doped UO2+x. The possibility of fission product segregation to the phases from UO2 or UO2+x was also investigated with a broad range of species preferring segregation from stoichiometric UO2. The role of defect cluster configuration on vacancy mediated uranium migration was investigated for UO2 and UO2+x. In both cases the lowest enthalpy migration pathway involved reconfiguration of the cluster to a metastable configuration. Furthermore, there were a very large number of alternative pathways that had similar migration enthalpies, especially for UO2+x. A new potential model was developed that uses a novel approach to include many-body interactions in the description of the actinide oxide series. This represents a significant improvement on previous models in the ability to describe the thermal expansion, specific heat capacity and elastic properties of CeO2, ThO2, UO2, NpO2, PuO2, AmO2 and CmO2 from 300 to 3000 K. Using the new model the thermal expansion, specific heat capacity, oxygen diffusivity and thermal conductivity of the mixed oxides (UxTh1-x)O2 and (UxPu1-x)O2 were predicted. Enhanced oxygen diffusion and a degradation in thermal conductivity were predicted in terms of the non-uniform cation sublattice.
Creation and observation of a ghost trilobite chemical bond
Creators: name: Eiles, Matthew T.
name: Tong, Zhengjia
name: Greene, Chris H.
Publisher: name: arXiv
Year: 2018
Subjects: subject: Atomic Physics (physics.atom-ph)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: The "trilobite" type of molecule, predicted in 2000 and observed experimentally in 2015, arises when a Rydberg electron exerts a weak attractive force on a neutral ground state atom. Such molecules have bond lengths exceeding 100 nm. The ultra-long-range chemical bond between the two atoms is a nonperturbative linear combination of the many degenerate electronic states associated with high principal quantum numbers, and the resulting electron probability distribution closely resembles a fossil trilobite from antiquity. We show how to coherently engineer this same long-range orbital through a sequence of electric and magnetic field pulses even when the ground state atom is not present, and propose several methods to observe the resulting orbital. The existence of such a ghost chemical bond in which an electron reaches out from one atom to a nonexistent second atom is a consequence of the high level degeneracy.
description: 5 pages, 4 figures, and 7 pages of supplementary information with 2 figures and 1 table