cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Quantum Fluctuations and Inertia
Creators: name: Jaekel, Marc-Thierry
name: Reynaud, Serge
Publisher: name: arXiv
Year: 1995
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Vacuum field fluctuations exert a radiation pressure which induces mechanical effects on scatterers. The question naturally arises whether the energy of vacuum fluctuations gives rise to inertia and gravitation in agreement with the general principles of mechanics. As a new approach to this question, we discuss the mechanical effects of quantum field fluctuations on two mirrors building a Fabry-Perot cavity. We first put into evidence that the energy related to Casimir forces is an energy stored on field fluctuations as a result of scattering time delays. We then discuss the forces felt by the mirrors when they move within vacuum field fluctuations, and show that energy stored on vacuum fluctuations contributes to inertia in conformity with the law of inertia of energy. As a further consequence, inertial masses exhibit quantum fluctuations with characteristic spectra in vacuum.
description: 11 pages
Additional file 2 of Single-cell exome sequencing reveals multiple subclones in metastatic colorectal carcinoma
Creators: name: Tang, Jie
name: Tu, Kailing
name: Lu, Keying
name: Zhang, Jiaxun
name: Luo, Kai
name: Jin, Haoxuan
name: Wang, Lei
name: Yang, Lie
name: Xiao, Weiran
name: Zhang, Qilin
name: Liu, Xiaoling
name: Ge, Xin yi
name: Li, Guibo
name: Zhou, Zongguang
name: Xie, Dan
Publisher: name: figshare
Year: 2021
Subjects: subject: Genetics
subject: FOS: Biological sciences

description: Additional file 2: Supplementary figures
Weakly-supervised Contextualization of Knowledge Graph Facts
Creators: name: Voskarides, Nikos
name: Meij, Edgar
name: Reinanda, Ridho
name: Khaitan, Abhinav
name: Osborne, Miles
name: Stefanoni, Giorgio
name: Kambadur, Prabhanjan
name: de Rijke, Maarten
Publisher: name: arXiv
Year: 2018
Subjects: subject: Information Retrieval (cs.IR)
subject: Artificial Intelligence (cs.AI)
subject: FOS: Computer and information sciences

description: Knowledge graphs (KGs) model facts about the world, they consist of nodes (entities such as companies and people) that are connected by edges (relations such as founderOf). Facts encoded in KGs are frequently used by search applications to augment result pages. When presenting a KG fact to the user, providing other facts that are pertinent to that main fact can enrich the user experience and support exploratory information needs. KG fact contextualization is the task of augmenting a given KG fact with additional and useful KG facts. The task is challenging because of the large size of KGs, discovering other relevant facts even in a small neighborhood of the given fact results in an enormous amount of candidates. We introduce a neural fact contextualization method (NFCM) to address the KG fact contextualization task. NFCM first generates a set of candidate facts in the neighborhood of a given fact and then ranks the candidate facts using a supervised learning to rank model. The ranking model combines features that we automatically learn from data and that represent the query-candidate facts with a set of hand-crafted features we devised or adjusted for this task. In order to obtain the annotations required to train the learning to rank model at scale, we generate training data automatically using distant supervision on a large entity-tagged text corpus. We show that ranking functions learned on this data are effective at contextualizing KG facts. Evaluation using human assessors shows that it significantly outperforms several competitive baselines.
description: SIGIR 2018: 41st international ACM SIGIR conference on Research and Development in Information Retrieval. July version: corrected typos
Supply chain business modelling
Creators: name: Pereira, Gabriela
Publisher: name: Imperial College London
Year: 2012

description: The developed work is motivated by the hypothesis that the presented Supply Chain Business Model is a practical and comprehensive approach to support not only operational day-to-day business decisions, but most importantly strategic and long term decisions that may define the success and the longevity of a business. Conceptually, the Business Supply Chain Model developed in this thesis replicates the behaviour and decision making of the different agents in a supply chain, and an Optimisation Module determines the optimised parameters that maximise the overall business profit, whatever scenario it may be. In the optimisation module, a Genetic Algorithm was used to determine the best equation parameters for each individual agent that optimise the overall supply chain profit. Furthermore, several business case-scenarios are presented and the findings highlighted. These case-scenarios prove that: the HC model is robust when subjected to predictable or unpredictable causes of variability; the bullwhip effect can be reduced significantly by applying GA as the optimisation tool; the improvement of profits needs to be evaluated at a global scale, independently of the individual agents’ profit; impact of supply shortages in the SC ; retail expansion analysis; delivery patterns change impact in profitability; impact of sourcing decisions in the SC profitability; model suitability for seasonal vs. non-seasonal products. The SC Modelling framework generic and globalising approach means that is easily applied and transposed to any other business realities and it can be easily changed to reflect other SC scenarios. The costing model associated means that, at any point in the network, all costs and profits can be easily measured. For the first time the shelf-life of a product captured and losses of product due to BBE dates, quantified. In this model the optimisation methodology runs parallel to the developed simulation tool, so the optimisation should be only run for new scenarios.
Additional file 1: of Clinical effectiveness of InvisalignÂŽ orthodontic treatment: a systematic review
Creators: name: Papadimitriou, Aikaterini
name: Mousoulea, Sophia
name: Gkantidis, Nikolaos
name: Kloukos, Dimitrios
Publisher: name: figshare
Year: 2018
Subjects: subject: Medicine
subject: Pharmacology
subject: Biotechnology
subject: Science Policy
subject: 110309 Infectious Diseases
subject: FOS: Health sciences

description: GRADE Working Group grades of evidence. Summary of findings:Â Invisalign compared in groups of different treatment modalities or divergent severity of crowding. (DOCX 16 kb)
Quantum Limits in Space-Time Measurements
Creators: name: Jaekel, Marc-Thierry
name: Reynaud, Serge
Publisher: name: arXiv
Year: 1995
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Quantum fluctuations impose fundamental limits on measurement and space-time probing. Although using optimised probe fields can allow to push sensitivity in a position measurement beyond the "standard quantum limit", quantum fluctuations of the probe field still result in limitations which are determined by irreducible dissipation mechanisms. Fluctuation-dissipation relations in vacuum characterise the mechanical effects of radiation pressure vacuum fluctuations, which lead to an ultimate quantum noise for positions. For macroscopic reflectors, the quantum noise on positions is dominated by gravitational vacuum fluctuations, and takes a universal form deduced from quantum fluctuations of space-time curvatures in vacuum. These can be considered as ultimate space-time fluctuations, fixing ultimate quantum limits in space-time measurements.
description: 11 pages, to appear in Quantum and Semiclassical Optics
Advanced physical characterisation of milled pharmaceutical solids
Creators: name: Wang, Duo
Publisher: name: Imperial College London
Year: 2012

description: Milling has been the key unit operation in controlling particle size of pharmaceutical powders at scale. The work carried out in this thesis is a comprehensive study of the stability of pharmaceutical solids post-milling and upon storage, from molecular level up to bulk handling scale. It is an attempt to fill key gaps in knowledge with regard to the anomalous behaviour and physical instability of milled powder through the development of advanced novel techniques. The physical instability of milled or amorphous pharmaceutical powders often manifest in changes in derived powder properties. Moisture induced dimensional changes of amorphous lactose compacts were monitored by in-situ environmental controlled optical profilometry. The complex volumetric behaviour involves glassy-rubbery phase transition followed by amorphous-crystalline transformation under the influence of water. These associated changes were not observed in physical aging of amorphous lactose compacts by measuring specific surface area. At the molecular level these physical changes are governed by relaxation processes. By operating within the linear viscoelastic region, low strain uni-axial indentation of small molecule organic glasses at a range of temperature generated master curves using WLF analysis. Viscoelastic behaviour of these materials were determined to be controlled by local β-relaxation around the glass transition rather than globally for polymers. At the bulk level, due to the non-equilibrium nature of milled and amorphous powders, their surface energies tends to be significantly higher than the equivalent crystalline forms. This can be detrimental as highly cohesive and poor flowing powders are difficult to process. The unconfined compression test was adapted to measure cohesion of small weak pharmaceutical powder compacts. More significantly, a positive relationship was confirmed between surface energetics and cohesion of modified D-mannitol. At the particle level, the mechanism(s) by which milling or micronisation creates low levels of amorphicity remains unclear. MOUDI fractionation of bulk micronised α-lactose monohydrate and characterisation of fine fractions has clearly demonstrated that micronisation as well as mechanical particle size reduction also generates low levels of highly amorphous ultrafine particles within bulk crystalline powder which will have a significant effect on powder physical stability post-milling and upon storage. In conclusion, using the novel techniques developed here, significant progress has been towards understanding the physical behaviour of milled and amorphous pharmaceutical solids.
Rapid cooling of magnetized neutron stars
Creators: name: Bandyopadhyay, Debades
name: Chakrabarty, Somenath
name: Dey, Prantick
name: Pal, Subrata
Publisher: name: arXiv
Year: 1998
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: The neutrino emissivities resulting from direct URCA processes in neutron stars are calculated in a relativistic Dirac-Hartree approach in presence of a magnetic field. In a quark or a hyperon matter environment, the emissivity due to nucleon direct URCA processes is suppressed relative to that from pure nuclear matter. In all the cases studied, the magnetic field enhances emissivity compared to the field-free cases.
description: 9 pages; Revtex; figure included
Geodesics on a Kerr-Newman-(anti-)de Sitter instanton
Creators: name: Lindberg, Aidan
name: Rayan, Steven
Publisher: name: arXiv
Year: 2018
Subjects: subject: Differential Geometry (math.DG)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Mathematics
subject: FOS: Physical sciences
subject: 53C22, 83C05, 83C57

description: We study geodesics along a noncompact Kerr-Newman instanton, where the asymptotic geometry is either de Sitter or anti-de Sitter. We use first integrals for the Hamilton-Jacobi equation to characterize trajectories both near and away from horizons. We study the interaction of geodesics with special features of the metric, particularly regions of angular degeneracy or "theta horizons" in the de Sitter case. Finally, we characterize a number of stable equilibrium orbits.
description: 22 pages, 12 tables, 5 figures
MOESM1 of Enhancement of photosynthetic isobutanol production in engineered cells of Synechocystis PCC 6803
Creators: name: Miao, Rui
name: Xie, Hao
name: Lindblad, Peter
Publisher: name: figshare
Year: 2018
Subjects: subject: Space Science
subject: Microbiology
subject: FOS: Biological sciences
subject: Cell Biology
subject: Molecular Biology
subject: 69999 Biological Sciences not elsewhere classified

description: Additional file 1: Figure S1. Growth of the Synechocystis PCC 6803 empty vector control strain under different light intensities and with different pH adjustments. Results represent the mean of three biological replicates, error bars represent standard deviation. Figure S2. Tolerance test for isobutanol and isobutyraldehyde. Three isobutanol concentrations and two isobutyraldehyde concentrations were tested in plug-sealed tissue flasks. The chemicals were added into pEEK2-ST cultures with OD750Â =Â 0.5. The change on OD750 in each culture after 24 h cultivation was analyzed here. Results represent the mean of three biological replicates, error bars represent standard deviation. Figure S3. Schematic overview of the constructs for identifying potential bottlenecks. All the constructs are generated on the self-replicating vector pEEK2. A: Schematic overviews of the constructs with single operon expressing KivdS286T and one of the respective genes to be examined. B: The construct generated to reduce the expression level of AlsS. C: Schematic overview of the constructs with two convergent orientated operons with a double terminator BBa_B0015 in between.
TRANSMARGE LEG2 cruise,Jean Charcot R/V
Creators: name: VANNEY JR
Publisher: name: Sismer
Year: 1982

description: Etude géologique de 2 types de marge continentale passive (Atlantique) de la Péninsule Ibérique : distension permanente à l'ouest ; compression épisodique au nord. Le leg 2 correspond à des levés Seabeam sismiques et des carottages pour l'étude du Canyon de Nazaré et le choix des sites de la campagne LUCY.
ARBITRARY-ORDER HERMITE GENERATING FUNCTIONS FOR COHERENT AND SQUEEZED STATES
Creators: name: Nieto, Michael Martin
name: Truax, D. Rodney
Publisher: name: arXiv
Year: 1995
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: For use in calculating higher-order coherent- and squeezed- state quantities, we derive generalized generating functions for the Hermite polynomials. They are given by $\sum_{n=0}^{\infty}z^{jn+k}H_{jn+k}(x)/(jn+k)!$, for arbitrary integers $j\geq 1$ and $k\geq 0$. Along the way, the sums with the Hermite polynomials replaced by unity are also obtained. We also evaluate the action of the operators $\exp[a^j(d/dx)^j]$ on well-behaved functions and apply them to obtain other sums.
description: LaTeX, 8 pages
TRANSMEDICET V cruise,Jean Charcot R/V
Creators: name: VIALE Denise
Publisher: name: Sismer
Year: 1989

description: Par l'étude de la répartition de la mégafaune de surface, et plus particulièrement des cétacés qui en constituent les éléments principaux, nous essayons d'appréhender une mesure quantitative de la production secondaire marine. En effet, les missions précédentes ont montré que les cétacés sont des indicateurs spatio-temporels des zones fortement productives. Les transits valorisés nous permettent donc, à la fois de cartographier la présence de tels animaux dans les microrégions que nous traversons, et de corréler ces observations aux relevés des conditions physico-chimiques et biotiques rencontrées (température de surface, salinité, biomasse sous-jacente, etc.). La multiplication des transits nous permettra de comparer statistiquement nos données afin d'analyser les différentes composantes spatiales (microrégions) et temporelles.
Reminiscences of Bessie Schoenberg 1979
Publisher: name: Columbia University
Year: 2019
Subjects: Dance teachers
Choreographers
Dancers
Modern dance

description: Bennington College: approach to education, students; Martha Hill as a person and as a teacher; early experiences teaching at Bennington; reminiscences of associates including Greg Tucker, Norman Lloyd, Arch Lauterer, Alexander Calder.
TRANSMEDICET VI cruise,Le Nadir R/V
Creators: name: TERRIS Nelly
Publisher: name: Sismer
Year: 1990

description: La production secondaire dans un écosystème pélagique est peu connue. Or, une possibilité d'exploration est fournie pour l'étude de la mégafaune de surface qui exploite la production macrozooplanctonique et nectonique. La mesure de la biomasse prédatrice présente un intérêt : donner une idée des biomasses consommées donc des quantités produites. Un des premiers résultats fournis pour les campagnes TRANSMEDICET est que les cétacés constituent la majorité des observations de mégafaune : ils sont donc prépondérants dans le contrôle de la production secondaire de l'écosystème. Nous cherchons donc à quantifier la biomasse prédatrice et à étudier sa répartition spatio-temporelle pour avoir une idée de l'évolution de la production secondaire en Méditerranée.
Non-convex resource allocation in communication networks
Creators: name: Tychogiorgos, Georgios
Publisher: name: Imperial College London
Year: 2013

description: The continuously growing number of applications competing for resources in current communication networks highlights the necessity for efficient resource allocation mechanisms to maximize user satisfaction. Optimization Theory can provide the necessary tools to develop such mechanisms that will allocate network resources optimally and fairly among users. However, the resource allocation problem in current networks has characteristics that turn the respective optimization problem into a non-convex one. First, current networks very often consist of a number of wireless links, whose capacity is not constant but follows Shannon capacity formula, which is a non-convex function. Second, the majority of the traffic in current networks is generated by multimedia applications, which are non-concave functions of rate. Third, current resource allocation methods follow the (bandwidth) proportional fairness policy, which when applied to networks shared by both concave and non-concave utilities leads to unfair resource allocations. These characteristics make current convex optimization frameworks inefficient in several aspects. This work aims to develop a non-convex optimization framework that will be able to allocate resources efficiently for non-convex resource allocation formulations. Towards this goal, a necessary and sufficient condition for the convergence of any primal-dual optimization algorithm to the optimal solution is proven. The wide applicability of this condition makes this a fundamental contribution for Optimization Theory in general. A number of optimization formulations are proposed, cases where this condition is not met are analysed and efficient alternative heuristics are provided to handle these cases. Furthermore, a novel multi-sigmoidal utility shape is proposed to model user satisfaction for multi-tiered multimedia applications more accurately. The advantages of such non-convex utilities and their effect in the optimization process are thoroughly examined. Alternative allocation policies are also investigated with respect to their ability to allocate resources fairly and deal with the non-convexity of the resource allocation problem. Specifically, the advantages of using Utility Proportional Fairness as an allocation policy are examined with respect to the development of distributed algorithms, their convergence to the optimal solution and their ability to adapt to the Quality of Service requirements of each application.
Nonlinear perturbations from the coupling of the inflaton to a non-Abelian gauge field, with a focus on Chromo-Natural Inflation
Creators: name: Papageorgiou, Alexandros
name: Peloso, Marco
name: Unal, Caner
Publisher: name: arXiv
Year: 2018
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: Several models of inflation employing a triplet of SU(2) vectors with spatially orthogonal vacuum expectation values (VEVs) have been recently proposed. One (tensor) combination $t$ of the vector modes is amplified in some momentum range during inflation. Due to the vector VEVs, this combination mixes with gravitational waves (GW) at the linear level, resulting in a GW amplification that has been well studied in the literature. Scalar perturbations in this class of models have been so far studied only at the linear level. We perform a first step toward the nonlinear computation using as an example the original model of Chromo-Natural Inflation. We compute the contribution to the scalar power spectrum arising from the coupling of the combination $t$ to the inflaton. This contribution is mostly controlled by a single parameter of the model (namely, the ratio between the mass of the fluctuations of the vector field and the Hubble rate), and, for a wide range of this parameter, it can significantly affect the phenomenology obtained from the linear theory. This nonlinear contribution is significantly blue, improving the comparison between the two-point function and the Cosmic Microwave Background (CMB) data. This growth can be also relevant for smaller scale phenomenology, such as large scale structure, CMB distortions, and primordial black holes.
description: 30 pages, 8 figures, correction to loop integral due to extra term, main results unchanged, match with the JCAP version
title: ADCO, Grènetier de Cîteaux : comptes (1499-1503) (11 H 1173), f. 00029
Creators: name: de la Côte-d'Or, Archives départementales
name: Petot, Frédéric
name: CBMA/CG21/F.PETOT/2019
name: Archives Départementales De La Côte-D'Or
name: Petot, Frédérique
name: Projet CBMA
Publisher: name: NAKALA - https://nakala.fr (Huma-Num - CNRS)
publisherIdentifier: https://ror.org/04ces3204
publisherIdentifierScheme: ROR
Year: 2020
Subjects: subject: comptes
subject: Corpus Burgundiae Medii Aevi
subject: Chartes de la Bourgogne du Moyen Âge
subject: LaMOP
subject: Laboratoire de Médiévistique Occidentale de Paris

description: Grènetier de Cîteaux : comptes (1499-1503), Archives départementales de la Côte-d'Or, (11 H 1173). Numérisation en mode image.
description: Relation: http://www.cbma-project.eu/
description: Bibliographic citation: Grènetier de Cîteaux : comptes (1499-1503), Archives départementales de la Côte-d'Or, (11 H 1173), f. 00029, in Projet CBMA - Corpus Burgundiae Medii Aevi [Ressource en ligne], https://manuscrits.cbma-project.eu/
description: Provenance: abbaye de Cîteaux
description: Provenance: http://www.wikidata.org/entity/Q843261
description: Provenance: https://www.geonames.org/3024876
description: Provenance: http://www.idref.fr/030974844/id
description: Provenance: https://catalogue.bnf.fr/ark:/12148/cb12228351v
Conus textile Linnaeus, 1758, spec. nov.
Creators: name: Linnaeus, Carolus
Publisher: name: Laurentius Salvius
Year: 1758
Subjects: Biodiversity
Taxonomy
Animalia
Mollusca
Gastropoda
Neogastropoda
Conidae
Conus
Conus textile

description: Conus textile [spec. nov.]
C. testa venis reticulatis luteis, maculis luteis fuscisque.
Rumph. mus. t. 32. f. O. P.
Gvalt. test. t. 25. f. X. AA.
Bonan. recr. 3. t. 135.
Argenv. conch. t. 16. f. D. I.
Kratzenst. Regenf. 26. t. 6. f. 62.
Habitat ad Bandam Asiae.
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 717, DOI: 10.5962/bhl.title.542, http://zenodo.org/record/3922206
Long-Term Evolution and Revival Structure of Rydberg Wave Packets for Hydrogen and Alkali-Metal Atoms
Creators: name: Bluhm, Robert
name: Kostelecky, Alan
Publisher: name: arXiv
Year: 1995
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: This paper begins with an examination of the revival structure and long-term evolution of Rydberg wave packets for hydrogen. We show that after the initial cycle of collapse and fractional/full revivals, which occurs on the time scale $t_{\rm rev}$, a new sequence of revivals begins. We find that the structure of the new revivals is different from that of the fractional revivals. The new revivals are characterized by periodicities in the motion of the wave packet with periods that are fractions of the revival time scale $t_{\rm rev}$. These long-term periodicities result in the autocorrelation function at times greater than $t_{\rm rev}$ having a self-similar resemblance to its structure for times less than $t_{\rm rev}$. The new sequence of revivals culminates with the formation of a single wave packet that more closely resembles the initial wave packet than does the full revival at time $t_{\rm rev}$, i.e., a superrevival forms. Explicit examples of the superrevival structure for both circular and radial wave packets are given. We then study wave packets in alkali-metal atoms, which are typically used in experiments. The behavior of these packets is affected by the presence of quantum defects that modify the hydrogenic revival time scales and periodicities. Their behavior can be treated analytically using supersymmetry-based quantum-defect theory. We illustrate our results for alkali-metal atoms with explicit examples of the revival structure for radial wave packets in rubidium.
description: To appear in Physical Review A, vol. 51, June 1995
Additional file 3: of Real-time analysis of nanopore-based metagenomic sequencing from infected orthopaedic devices
Creators: name: Sanderson, Nicholas
name: Street, Teresa
name: Foster, Dona
name: Swann, Jeremy
name: Atkins, Bridget
name: Brent, Andrew
name: McNally, Martin
name: Oakley, Sarah
name: Taylor, Adrian
name: Peto, Tim
name: Crook, Derrick
name: Eyre, David
Publisher: name: figshare
Year: 2018
Subjects: subject: Space Science
subject: Medicine
subject: Microbiology
subject: FOS: Biological sciences
subject: Genetics
subject: Molecular Biology
subject: Ecology
subject: Sociology
subject: FOS: Sociology
subject: 69999 Biological Sciences not elsewhere classified

description: Figure S3. Indiscriminate(indis) read and discriminate(dis) mapping qualities. Quality scores taken from mapping all reads to a reference with minimap2. Discriminate scores are from reads that have passed through the pipeline filtering thresholds and are determined to be reads specific to the reference. The indiscriminate are other reads that were likely to be host and/or contamination. (PDF 12 kb)
ORFEUS-II Observations of the Ultraviolet-Bright Star Barnard 29 in M13
Creators: name: Dixon, W. Van Dyke
name: Hurwitz, Mark
Publisher: name: arXiv
Year: 1998
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: The UV-bright star Barnard 29 in the globular cluster M13 was observed for 5300 seconds with the Berkeley spectrometer on the ORFEUS-SPAS II Mission in 1996 November-December. The resulting spectrum extends from the interstellar cutoff at 912 A to ~ 1200 A at a resolution of ~ 0.33 A. It shows numerous absorption features, both photospheric and interstellar, but no significant emission other than diffuse emission of local origin. The Kurucz synthetic stellar spectrum that best fits the data has T_eff = 21,000 K, log g = 3.0, and [M/H] = -2.5. This effective temperature and surface gravity are consistent with previous results, but the derived metallicity is lower than that of other M13 giants, for which [Fe/H] = -1.60. Using high-resolution synthetic spectra, we determine the photospheric abundances of C, S, and Fe, species unobservable in the optical. We find log epsilon(C) = 6.15 +/- 0.10, log epsilon(S) = 5.34 +/- 0.50, and log epsilon(Fe) = 5.30 (+0.22, -0.26). Again, the Fe abundance is lower than expected. This anomaly may reflect selective condensation of metals onto dust grains at the end of the AGB phase, as has been suggested for some cooler post-AGB stars with peculiar Fe abundances.
description: LaTeX file, 6 pages, 3 encapsulated PostScript figures. Uses aas2pp4.sty and astrobib.sty. (Astrobib is available from http://www.stsci.edu/software/TeX.html .) The ORFEUS telescope is described at http://sag-www.ssl.berkeley.edu/orfeus/ . To appear in The Astrophysical Journal (Letters)
A Bound on the Flux of Magnetic Monopoles from Catalysis of Nucleon Decay in White Dwarfs
Creators: name: Freese, Katherine
name: Krasteva, Eleonora
Publisher: name: arXiv
Year: 1998
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: Catalysis of nucleon decay in white dwarfs is used to constrain the abundance of magnetic monopoles arising from Grand Unified Theories. Recent discoveries of the dimmest white dwarf ever observed, WD 1136-286 with $L = 10^{-4.94} L_{\odot}$, place limits on the monopole flux. An abundance of monopoles greater than the new bound would heat this star to a luminosity higher than what is observed. The new bound is $(F/$cm $^{-2}$ s$^{-1}$ sr$^{-1}$) $(σ\upsilon/10^{-28} cm^2) < 1.3 \times 10^{-20} (\upsilon/10^{-3}c)^2$, where $\upsilon $ is the monopole velocity. The limit is improved by including the monopoles captured by the main-sequence progenitor of the white dwarf: $(F/$cm $^{-2}$ s$^{-1}$ sr$^{-1}$) $(σ\upsilon /10^{-28} cm^2) < 3.5(26) \times 10^{-21}$ for $10^{17}$ ($10^{16}$) GeV monopoles. We also note that the dependence on monopole mass of flux bounds due to catalysis in neutron stars with main sequence accretion has previously been calculated incorrectly (previously the bound has been stated as $F (σ\upsilon/10^{-28} cm^2) < 10^{-28} $ cm $^{-2}$ s$^{-1}$ sr$^{-1}$). We show that the correct bounds are somewhat weaker for monopole mass other than $10^{17}$ GeV.
description: 16 pages, 1 Postscript figure
Investigating the neural basis of self-awareness deficits following traumatic brain injury
Creators: name: Ham, Timothy
Publisher: name: Imperial College London
Year: 2013

description: Self-awareness deficits are a common and disabling consequence of traumatic brain injury (TBI). ‘On-line’ awareness is one facet of self-awareness that can be studied by examining how people monitor their performance and respond to their errors. Performance monitoring, like many of the cognitive functions disrupted after TBI, is believed to depend on the coordinated activity of neural networks. The fronto-parietal control network (FPCN) is one such network that contains a sub-network called the salience network (SN). The SN consists of the dorsal anterior cingulate (dACC) and bilateral insulae cortex and is thought to monitor salient events (e.g. errors). I used advanced structure and function MRI techniques to investigate these networks and test two overarching hypotheses: first, performance monitoring is regulated by regions within the FPCN; and second, dysfunction of the FPCN leads to impaired self-awareness after TBI. My first study demonstrated two distinct frontal networks that respond to different error types. Predictable/internally signalled errors caused SN activation; whereas unpredictable/externally signalled errors caused activation of the ventral attentional network, a network thought to respond to unexpected events. This suggested the presence of parallel performance monitoring systems within the FPCN. My second study established that the ‘driving’ input into the SN originated in right anterior insula and subsequent behavioural adaptation was regulated by enhanced effective connectivity from the dACC to the left anterior insula. In my third study I identified a large group of TBI patients with impaired performance monitoring. These patients had additional metacognitive evidence of impaired self-awareness and demonstrated reduced functional connectivity between the dACC and the remainder of the FPCN at ‘rest’, and abnormally large insulae activation in response to errors. These studies clarified how the brain monitors and responds to salient events; and, provided evidence that self-awareness deficits after TBI are due to FPCN dysfunction, identifying this network as a potential target for future treatments.
On Wolter's vortex in total reflection
Creators: name: Rosu, H. C.
Publisher: name: arXiv
Year: 1995
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: The "circulatory wave" ("die zirkulierende Welle") put into evidence in 1949 by Wolter (Wolter's vortex) in total reflection is interpreted as a phase defect in the scalar theory of Green and Wolf of 1953, which is the Madelung (hydrodynamic) representation of the optical field. Some comments are added on its possible relevance for the Hamamatsu experiment aimed to clarify the wave-particle duality at the "single photon" level of down-converted laser beams
description: replaced with published version
Interaction-Free Preparation
Creators: name: Krenn, G.
name: Summhammer, J.
name: Svozil, K.
Publisher: name: arXiv
Year: 1995
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We demonstrate that the preparation of a very well localized atom beam is possible without physical interaction. The preparation is based on the selection of an adequate ensemble of atoms of an originally wide beam by means of information obtained with a neutron interferometer. In such a case the uncertainty relation can no longer be interpreted as a by-product of the interaction between the system and the preparation apparatus.
description: latex
Reminiscences of Betty Brooks Bell, 1985
Publisher: name: Columbia University
Year: 2020
Subjects: New Deal, 1933-1939

description: Family background; moved with parents to Washington DC when father became a member of the House of Representatives from Little Rock, Arkansas; married William E. Bell, 1945; language facility; moved to Mexico because of husband's assignment with Institute of Inter-American Affairs, 1949-1952; various experiences in Mexico; husband's work installing water supplies; move to Costa Rica, 1952-1954; contrast between two countries; membership in various women's groups
Preserving Digital Humanities Prototype Projects Using the Knowledge Commons
Creators: name: Schopieray, Scott
Publisher: name: Knowledge Commons
Year: 2025
Subjects: subject: Digital humanities

description: Digital humanities (DH) projects often suffer from limited funding, which leads to the abandonment of prototype applications. This typically occurs when teams shift from unfunded projects to those with financial backing or to developing new proposals. Even funded projects encounter difficulties, as current models primarily support the early phases of development—planning, designing, and launching—while providing minimal support for maintenance.

Core issues that arise include the disappearance of valuable work and ideas such as codebases, user interfaces, and interaction designs; limited opportunities for scholars to iterate on prior knowledge; and challenges with discoverability and citation due to scarce documentation, especially as teams are redirected.

This talk introduces an emerging workflow for archiving born-digital web applications using Knowledge Commons (KC), a scholarly communications platform with a global audience of nearly 50,000 users. KC is academy-owned and operated, free to use, and offers robust tools for open scholarly collaboration, communication, and archiving. The workflow provides a lightweight process for archiving prototype applications in an open, socially connected environment. This approach ensures that previously hidden work becomes discoverable, citable, and persistently visible, thereby preserving the contributions of projects and their creators.
TRANSMEDICET VII cruise,Le Suroît R/V
Creators: name: TERRIS Nelly
Publisher: name: Sismer
Year: 1991

description: Par l'étude de la répartition de la mégafaune de surface, et plus particulièrement des cétacés qui en constituent les éléments principaux, nous essayons d'appréhender une mesure quantitative de la production secondaire marine. En effet, les missions précédentes ont montré que les cétacés sont des indicateurs spatio-temporels des zones fortement productives. Les transits valorisés nous permettent donc à la fois de cartographier la présence de tels animaux dans les microrégions que nous traversons, et de corréler ces observations aux relevés des conditions physico-chimiques et biotiques rencontrées (température de surface, salinité, biomasse sous-jacente, etc.). La multiplication des transits nous permettra de comparer statistiquement nos données afin d'analyser les différentes composantes spatiales (microrégions) et temporelles.
An Operator Derivation of the Path Decomposition Expansion
Creators: name: Halliwell, J. J.
Publisher: name: arXiv
Year: 1995
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: The path decomposition expansion is a path integral technique for decomposing sums over paths in configuration space into sums over paths in different spatial regions. It leads to a decomposition of the configuration space propagator across arbitrary surfaces in configuration space. It may be used, for example, in calculations of the distribution of first crossing times. The original proof relied heavily on the position representation and in particular on the properties of path integrals. In this paper, an elementary proof of the path decomposition expansion is given using projection operators. This leads to a version of the path decomposition expansion more general than the configuration space form previously given. The path decomposition expansion in momentum space is given as an example.
description: 9 pages Plain Tex
The function of NaV1.8 clusters in lipid rafts
Creators: name: Finn, Amber
Publisher: name: Imperial College London
Year: 2014

description: NaV1.8 is a voltage gated sodium channel mainly expressed on the membrane of thin diameter c-fibre neurons involved in the transmission of pain signals. In these neurons NaV1.8 is essential for the propagation of action potentials. NaV1.8 is located in lipid rafts along the axons of sensory neurons and disruption of these lipid rafts leads to NaV1.8 dependant conduction failure. Using computational modelling, I show that the clustering of NaV1.8 channels in lipid rafts along the axon of thin diameter neurons is energetically advantageous and requires fewer channels to conduct action potentials. During an action potential NaV1.8 currents across the membrane in these thin axons are large enough to dramatically change the sodium ion concentration gradient and thereby void the assumptions upon which the cable equation is based. Using scanning electron microscopy NaV1.8 is seen to be clustered, as are lipid raft marker proteins, on neurites at scales below 200nm. FRET signals show that the lipid raft marker protein Flotillin is densely packed on the membrane however disruption of rafts does not reduce the FRET signal from dense protein packing. Using mass spectrometry I investigated the population of proteins found in the lipid rafts of sensory neurons. I found that the membrane pump NaK-ATPase, which restores the ion concentrations across the membrane, is also contained in lipid rafts. NaK-ATPase may help to offset concentration changes due to NaV1.8 currents enabling the repeated firing of c-fibres, which is associated with spontaneous pain in chronic pain disorders.
A covariant and gauge-invariant analysis of cosmic microwave background anisotropies from scalar perturbations
Creators: name: Challinor, A. D.
name: Lasenby, A. N.
Publisher: name: arXiv
Year: 1998
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We present a new, fully covariant and manifestly gauge-invariant expression for the temperature anisotropy in the cosmic microwave background radiation resulting from scalar perturbations. We pay particular attention to gauge issues such as the definition of the temperature perturbation and the placing of the last scattering surface. In the instantaneous recombination approximation, the expression may be integrated up to a Rees-Sciama term for arbitrary matter descriptions in flat, open and closed universes. We discuss the interpretation of our result in the baryon-dominated limit using numerical solutions for conditions on the last scattering surface, and confirm that for adiabatic perturbations the dominant contribution to the anisotropy on intermediate scales (the location of the Doppler peaks) may be understood in terms of the spatial inhomogeneity of the radiation temperature in the baryon rest frame. Finally, we show how this term enters the usual Sachs-Wolfe type calculations (it is rarely seen in such analyses) when subtle gauge effects at the last scattering surface are treated correctly.
description: 20 pages, 2 Postscript figures
Genetic dissection of Anopheles gambiae epithelial responses to gut commensal bacteria
Creators: name: Stathopoulos, Stavros
Publisher: name: Imperial College London
Year: 2013

description: Commensal bacteria inhabiting the mosquito gut have been shown to profoundly influence the outcome of infection with malaria Plasmodium parasites. Genetic variation within mosquito populations has also been associated with the outcome of Plasmodium infections, especially with regard to immune factors, many of them targeting both bacteria and Plasmodium parasites. Although bacteria are considered a major evolutionary force that may affect survival, no link has yet to emerge between mosquito genetic variation and the outcome of bacterial infections. To test this possibility, a model of oral infections was established in Anopheles gambiae, the major malaria vector, with two common members of the mosquito gut microbiota, Asaia and Serratia marcescens. Using genome-wide SNP genotyping and expression analyses, mosquito genes associated with the outcome of Serratia infection and differentially expressed following Asaia or Serratia infection were identified. Three genes encoding type III fibronectin domains (FN3D1-3), associated with the outcome of Serratia infection, were shown to limit Serratia abundance and shift the mosquito gut bacterial population structure by limiting mainly Enterobacteriaceae, suggesting that mosquito responses shape the gut bacterial community with much higher specificity than previously thought. Furthermore, silencing of the gene encoding the gustatory receptor Gr9, also associated with the Serratia infection outcome, was shown to radically increase Serratia levels following oral infection, in a behavioural response than mostly relied on changes in neuropeptide F expression. Both the expression and SNP genotyping analysis indicated the existence of an epithelial and a behavioural mode of immunity following oral bacterial infection and revealed the complexity and specificity of this intricate biological system that is expected to shape malaria transmission dynamics.
Normal stress differences in dense suspensions
Creators: name: Seto, Ryohei
name: Giusteri, Giulio G.
Publisher: name: arXiv
Year: 2018
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Fluid Dynamics (physics.flu-dyn)
subject: FOS: Physical sciences

description: The presence and the microscopic origin of normal stress differences in dense suspensions under simple shear flows are investigated by means of inertialess particle dynamics simulations, taking into account hydrodynamic lubrication and frictional contact forces. The synergic action of hydrodynamic and contact forces between the suspended particles is found to be the origin of negative contributions to the first normal stress difference $N_1$, whereas positive values of $N_1$ observed at higher volume fractions near jamming are due to effects that cannot be accounted for in the hard-sphere limit. Furthermore, we found that the stress anisotropy induced by the planarity of the simple shear flow vanishes as the volume fraction approaches the jamming point for frictionless particles, while it remains finite for the case of frictional particles.
description: 14 pages, 9 figures
Relativistic nuclear recoil corrections to the energy levels of hydrogen-like and high $Z$ lithium like atoms in all orders in $αZ$
Creators: name: Artemyev, A. N.
name: Shabaev, V. M.
name: Yerokhin, V. A.
Publisher: name: arXiv
Year: 1995
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: The relativistic nuclear recoil corrections to the energy levels of low-laying states of hydrogen-like and high $Z$ lithium-like atoms in all orders in $αZ$ are calculated. The calculations are carried out using the B-spline method for the Dirac equation. For low $Z$ the results of the calculation are in good agreement with the $αZ$ -expansion results. It is found that the nuclear recoil contribution, additional to the Salpeter's one, to the Lamb shift ($n=2$) of hydrogen is $-1.32(6)\,kHz$. The total nuclear recoil correction to the energy of the $(1s)^{2}2p_{\frac{1}{2}}-(1s)^{2}2s$ transition in lithium-like uranium constitutes $-0.07\,eV$ and is largely made up of QED contributions.
description: 19 pages, latex, accepted for publication in Phys. Rev. A
TRANSMEDICET VIII cruise,Le Suroît R/V
Creators: name: LAROSA, J.
name: TERRIS Nelly
Publisher: name: Sismer
Year: 1991

description: Par l'étude de la répartition de la mégafaune de surface, et plus particulièrement des cétacés qui en constituent les éléments principaux, nous essayons d'appréhender une mesure quantitative de la production secondaire marine. En effet, les missions précédentes ont montré que les cétacés sont des indicateurs spatio-temporels des zones fortement productives. Les transits valorisés nous permettent donc à la fois de cartographier la présence de tels animaux dans les microrégions que nous traversons, et de corréler ces observations aux relevés des conditions physico-chimiques et biotiques rencontrées (température de surface, salinité, biomasse sous-jacente, etc.). La multiplication des transits nous permettra de comparer statistiquement nos données afin d'analyser les différentes composantes spatiales (microrégions) et temporelles.
Conus striatus Linnaeus, 1758, spec. nov.
Creators: name: Linnaeus, Carolus
Publisher: name: Laurentius Salvius
Year: 1758
Subjects: Biodiversity
Taxonomy
Animalia
Mollusca
Gastropoda
Neogastropoda
Conidae
Conus
Conus striatus

description: Conus striatus [spec. nov.]
C. testa ovato-oblonga gibba nebulosa: striis tenuissimis parallelis fuscis.
Rumph. mus. t. 31. f. F.
Gvalt. test. t. 26. f. D.
Argenv. conch. t. 16. f. C.
Pet. gaz. t. 98. f. 9.
Kratzenst. Regenf. t. 8. f. 16.
Habitat versus littora Hitoe.
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 pages 716-717, DOI: 10.5962/bhl.title.542, http://zenodo.org/record/3922206
TRANSMEDICET X cruise,L'Atalante R/V
Creators: name: TERRIS Nelly
name: ALLENOU Jean-Paul
Publisher: name: Sismer
Year: 1991

description: Par l'étude de la répartition de la mégafaune de surface, et plus particulièrement des cétacés qui en constituent les éléments principaux, nous essayons d'appréhender une mesure quantitative de la production secondaire marine. En effet, les missions précédentes ont montré que les cétacés sont des indicateurs spatio-temporels des zones fortement productives. Les transits valorisés nous permettent donc à la fois de cartographier la présence de tels animaux dans les microrégions que nous traversons, et de corréler ces observations aux relevés des conditions physico-chimiques et biotiques rencontrées (température de surface, salinité, biomasse sous-jacente, etc.). La multiplication des transits nous permettra de comparer statistiquement nos données afin d'analyser les différentes composantes spatiales (microrégions) et temporelles.