cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
A wirelessly-powered sensor platform using a novel textile antenna
Creators: name: Lui, Kwok Wa
Publisher: name: Imperial College London
Year: 2013

description: This thesis describes the design and analysis of a novel wideband circularly-polarized textile antenna to power up a wearable wirelessly-powered sensor system operating in the 2.45 GHz ISM band (2.4-2.5 GHz) and the building of the whole system. The system is constructed using off-the-shelf components and it is shown that the wirelessly-powered sensor system is able to operate when just a few mW are transmitted from a base station at a distance over a metre. Initially, standard linearly-polarized patch antennas are used for power transmission. However, the antennas have to be aligned perfectly for the best efficiency. Subsequently, a circularly-polarized antenna is proposed for enhanced wireless-power transfer due to the freedom of orientation. A wide-slot antenna without a ground plane has been chosen for its simplicity and wide impedance band. The geometry is firstly optimized for wide impedance and 3-dB axial ratio bandwidth on FR-4. The experimental and simulation results have been studied to analyse the characteristics of such an antenna. The wideband circularly-polarized antenna is then constructed using a conductive textile and re-optimized for on-body applications. With a simple antenna geometry and only a single layer of conductive textile layer, the axial ratio and impedance bandwidths are wide enough to cover the whole 2.45 GHz ISM band with plenty of margin and are significantly wider than any other on-body circularly-polarized textile patch antennas which have been reported. The characteristics of this wideband circularly-polarized antenna under different conditions on the human body have been measured and then connected to the wirelessly-powered sensor system to demonstrate the effectiveness of power transfer to the human body.
The Dark Side of the Littlest Seesaw: freeze-in, the two right-handed neutrino portal and leptogenesis-friendly fimpzillas
Creators: name: Chianese, Marco
name: King, Stephen F.
Publisher: name: arXiv
Year: 2018
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We propose a minimal model to simultaneously account for a realistic neutrino spectrum through a type-I seesaw mechanism and a viable dark matter relic density. The model is an extension of the Littlest Seesaw model in which the two right-handed neutrinos of the model are coupled to a $Z_2$-odd dark sector via right-handed neutrino portal couplings. In this model, a highly constrained and direct link between dark matter and neutrino physics is achieved by considering the freeze-in production mechanism of dark matter. We show that the neutrino Yukawa couplings which describe neutrino mass and mixing may also play a dominant role in the dark matter production. We investigate the allowed regions in the parameter space of the model that provide the correct neutrino masses and mixing and simultaneously give the correct dark matter relic abundance. In certain cases the right-handed neutrino mass may be arbitrarily large, for example in the range $10^{10}-10^{11}$ GeV required for vanilla leptogenesis, with a successful relic density arising from frozen-in dark matter particles with masses around this scale, which we refer to as "fimpzillas".
description: 24 pages, 5 figures. v2: version to appear in JCAP
The role of fermentable carbohydrates on appetite regulation in humans
Creators: name: Mat Daud, Norlida Binti
Publisher: name: Imperial College London
Year: 2012

description: This thesis investigates the ability of fermentable carbohydrates to stimulate anorectic gut hormones, which in turn reduce appetite and body weight. Fermentable carbohydrates have been shown to suppress food intake and body weight in rodents via the release of satiety hormones, glucagon-like peptide 1 (GLP-1) and peptide-YY (PYY). However, evidence of the effect of fermentable carbohydrates on modulating body weight in humans is contradictory. In this thesis, supplementing oligofructose over eight weeks has been shown to significantly reduce hunger and increase PYY secretion in overweight volunteers. However, there was no suppression on energy intake or body weight when compared with cellulose supplementation. Studies in rodents also suggested that reductions in food intake and body weight following intake of fermentable carbohydrates are associated with activation in the central nervous system. In contrast, oligofructose supplementation in this study had no significant effect on reducing activation in pre-selected brain reward regions in response to visual food cues, as measured by functional MRI. Surprisingly, the activation in these brain regions was reduced by cellulose intake. The negative findings from the oligofructose study may be due to insufficient concentrations of short chain fatty acids (SCFAs) in the colon. SCFAs, the fermentation end-products of ingested fermentable carbohydrates are thought to play a significant role in modifying energy homeostasis by stimulating PYY and GLP-1 from enteroendocrine L-cells in the colon. By applying a novel method of delivering propionate to the colon using a propionate carrier molecule (PCM), it has been shown that supplementation with PCM in healthy lean volunteers reduced hunger and energy intake in pilot studies via elevated PYY secretion. PCM also has a dose-dependent appetite inhibiting effect. The preliminary results in this thesis open up an interesting possibility of the development of the PCM as a dietary supplement to aid weight loss.
Cypraea flaveola Linnaeus, 1758, spec. nov.
Creators: name: Linnaeus, Carolus
Publisher: name: Laurentius Salvius
Year: 1758
Subjects: Biodiversity
Taxonomy
Animalia
Mollusca
Gastropoda
Littorinimorpha
Cypraeidae
Cypraea
Cypraea flaveola

description: Cypraea flaveola [spec. nov.]
C. testa eroso-marginata fulva albo punctata.
Habitat ..
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 724, DOI: 10.5962/bhl.title.542, http://zenodo.org/record/3922206
Neutrino mass generation with large $SU(2)_L$ multiplets under local $U(1)_{L_μ- L_τ}$ symmetry
Creators: name: Nomura, Takaaki
name: Okada, Hiroshi
Publisher: name: arXiv
Year: 2018
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We propose a model of neutrino mass matrix with large $SU(2)$ multiplets and gauged $U(1)_{L_μ- L_τ}$ symmetry, in which we introduce $SU(2)$ quartet scalar and quintet fermions with nonzero $L_μ- L_τ$ charge. Then we investigate the neutrino mass structure and explore phenomenologies of large multiplet fields at the collider, particularly, focussing on doubly- and singly- charged exotic leptons from the quintet.
description: 14 pages, 2 tables, 3 figures; accepted version for publication in Physics Letters B
TYRRHENIA II CH 135 cruise,Jean Charcot R/V
Creators: name: REHAULT Jean-Pierre
Publisher: name: Sismer
Year: 1982

description: Levés détaillés au sondeur multifaisceaux et pinceau étroit Seabeam d'escarpements de la Mer Tyrrhénienne centrale. L'effort a porté sur les marges bordant le bassin profond et sur quelques montagnes sous-marines dont les études classiques antérieures ont déjà montré les principaux traits structuraux et donné des indications sur leur nature géologique (socle continental d'affinités Sardes ou Apennines, avec ou sans éléments "alpins" ; édifices volcaniques, etc.). L'objectif essentiel de cette mission est la préparation de plongées avec le submersible CYANA, sur les sites ainsi reconnus en détail.
Polymer/fullerene solution processing: impact on thin film morphology
Creators: name: Dattani, Rajeev
Publisher: name: Imperial College London
Year: 2014

description: Polymer:fullerene blends are commonly used in organic solar cells (OSCs) and solution based processing is currently the most widely used fabrication method (Vandewal et al., Macromolecules, 2013, Thompson et al. Angewandte Chemie, 2008) [1, 2]. However, the solution behaviour, polymer chain conformation and thermodynamic interactions within these systems, which critically impact thin film morphology, is not well understood. In this work, a model ternary system is systematically investigated polystyrene (PS), C60 and toluene. PS was chosen as it is a flexible polymer and has been extensively studied in solution, thin films and melt, and C60 is an exceptionally well defined molecule. A range of PS molecular weights is investigated, from 18 to 1000 kg/mol, dilute to semidilute polymer solution regimes and the fullerene solutions (below and above its miscibility limit in toluene). No change in the polymer chain dimensions (Rg, Rh or ξ) is found. C60 is shown to aggregate in solution below the miscibility limit in toluene and is shown to be dependent on PS Mw, PS concentration and time. The results are consistent with polymer/colloid theory in the protein-limit. (Dattani et al. Macromolecules, 2014) [3] Thin films with thicknesses ranging from 60 to 130 nm are fabricated from solutions in a homogenous and precipitated regime and the consequences for film formation and morphology under thermal annealing is investigated and quantified. C60 clusters are grown in solution via light exposure and are the result of light-induced oxidation. C60 epoxides are present in the solution and an aggregation mechanism is proposed. C60 epoxidation and aggregation is found to be dependent on C60 concentration, laser power, solvent, temperature and time. The knowledge gained from the model PS/C60/toluene system is applied to systems containing the much-studied poly-3-hexylthiophene (P3HT)/phenyl-C61-butyric acid methyl ester (PCBM) pair, with qualitatively similar results observed. The change in film morphology, accessible by a simple change in processing conditions, offers a unique method for tuning device efficiencies with respect to the size of the fullerene domains.
A Particle Theory of the Casimir Effect
Creators: name: Suppes, Patrick
name: Sant'Anna, Adonai S.
name: de Barros, J. Acacio
Publisher: name: arXiv
Year: 1995
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: In previous works Suppes and de Barros used a pure particle model to derive interference effects, where individual photons have well-defined trajectories, and hence no wave properties. In the present paper we extend that description to account for the Casimir effect. We consider that the linear momentum $\sum\frac{1}{2}\hbar {\bf k}$ of the vacuum state in quantum electrodynamics corresponds to the linear momentum of virtual photons. The Casimir effect, in the cases of two parallel plates and the solid ball, is explained in terms of the pressure caused by the photons. Contrary to quantum electrodynamics, we assume a finite number of virtual photons.
description: LaTeX file, 11 pages, no figures. Key words: photon, trajectories, QED, Casimir effect, quantum vacuum
Optimization and Novel Applications of Luminescent Solar Concentrators
Creators: name: Fisher, Martyn
Publisher: name: Imperial College London
Year: 2013

description: The luminescent solar concentrator (LSC) was first proposed in the 1970s as a means to reduce the high cost of generating solar energy. The basic design was simple: a large transparent plate doped with an appropriate luminescent material which is able to absorb both direct and diffuse sunlight, and then guide photons produced by photoluminescence to its narrow edges where they are converted by photovoltaic cells. Unfortunately, the LSC has suffered from numerous efficiency losses and short lifetimes. Therefore, new luminescent species and novel approaches are needed for its practical application. Novel luminescent species studied in this thesis include arrays of vertical, self-aligned CdSe/CdS nanorods. The nanorods emit preferentially in the waveguiding plane and were characterised to ascertain the extent of self-alignment, and to determine their viability and this alignment technique for LSCs. Furthermore, a number of generations of bio-derived Phycobillisomes, a light absorbing pigment found in species of red algae, have been also been investigated and are a possible source of cheap and abundant luminescent material. Lastly, several luminescent species consisting of metal complexes and oligomers with high Stokes-shift were investigated. High Stokes-shift materials are essential if LSC efficiencies are to be increased as they mitigate the re-absorption that generally constitutes the dominant loss mechanism. This thesis features two novel LSC applications. The first is a large area, flexible LSC system for portable power generation. Computational raytrace simulations reveal the device is feasible but will require high Stokes-shift materials. The second novel approach utilises a tandem LSC system in conjunction with a photoelectrochemical cell (PEC). In the tandem design the upper concentrator provides blue light to excite a Fe2O3 photoanode for water oxidation while the lower concentrator provides red light that is converted by Si cells producing sufficient voltage to enable hydrogen production at a Pt electrode contained within the PEC.
Cypraea poraria Linnaeus, 1758, spec. nov.
Creators: name: Linnaeus, Carolus
Publisher: name: Laurentius Salvius
Year: 1758
Subjects: Biodiversity
Taxonomy
Animalia
Mollusca
Gastropoda
Littorinimorpha
Cypraeidae
Cypraea
Cypraea poraria

description: Cypraea poraria [spec. nov.]
C. testa marginata subviolacea albo punctata.
Habitat ..
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 724, DOI: 10.5962/bhl.title.542, http://zenodo.org/record/3922206
Design and Operation of a Novel Carbon/Air Fuel Cell
Creators: name: Kaewpet, Prattana
Publisher: name: Imperial College London
Year: 2013

description: A liquid tin anode-indirect carbon air fuel cell (LTA-ICFC) is a type of high-temperature solid oxide fuel cell that allows to electrochemically convert carbonaceous fuels directly to electrical energy with a high theoretical efficiency. A LTA-ICFC, where the electrochemical reactions taking place in an electrochemical reactor are decoupled from the combustion process, offers a number of advantages over a direct carbon air fuel cell. The concept of Indirect carbon-air fuel cell is desirable because: (1) its theoretical thermodynamic efficiency is ~100.3% which is nearly independent of temperature: (2) the reaction product CO2 is generated and exhausted in the ‘ex-cell’ combustion reactor as a pure substance. This allows simpler recovery, capture, or sequestration of CO2 without the need for further complex separation processes, that would cost and consume energy: (3) a wide choice of carbonaceous fuels can be used: (4) trace elements in the fuels do not poison the electrolyte materials: and (5) the operating temperatures of the two separated reactors can be individually controlled enabling optimisation of different process rates and efficiencies and minimising voltage losses. A number of LTA-ICFCs have been designed, constructed, operated and characterised to identify salient parameters necessary in the scale-up and commercialisation of this type of fuel cell. A high-density alumina ceramic was used as the liquid tin anode container which allowed extensive operation for more than 1,750 hours. A closed-end tubular 10 mol-%YSZ electrolyte with the thickness of 1.57 mm was compatible with the liquid tin and was continuously operated for more than 360 hours. The maximum power density of the fuel cell acquired at 800 °C was 1.3 mW.cm-2 due to the relatively thick electrolyte. The effect of cathode fabrication methods, preparation conditions of the high temperature composite cathodes (LSM-YSZ and LSM), on their characteristics and function, have been studied. Suitable composite cathodes and current collectors were prepared and characterised using a four-point probe measurement, scanning electron microscopy, and image analysis software (ImageJ). 1D modelling of electrochemical processes and electrochemical characterisation using Electrochemical Impedance Spectroscopy of the operating LTA-ICFC demonstrated the feasibility of the concept of an LTA-ICFC. A key observation was the formation of a tin oxide layer on the electrolyte due to the low dissolution rate of the formed oxide in the bulk of the liquid metal.
The Second-Parameter Effect in Metal-Rich Globular Clusters
Creators: name: Sweigart, A. V.
name: Catelan, M.
Publisher: name: arXiv
Year: 1998
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: Recent Hubble Space Telescope observations have found that the horizontal branches (HB's) in the metal-rich globular clusters NGC 6388 and NGC 6441 slope upward with decreasing B-V. Such a slope is not predicted by canonical HB models and cannot be produced by either a greater cluster age or enhanced mass loss along the red-giant branch (RGB). The peculiar HB morphology in these clusters may provide an important clue for understanding the second-parameter effect. We have carried out extensive evolutionary calculations and numerical simulations in order to explore three non-canonical scenarios for explaining the sloped HB's in NGC 6388 and NGC 6441: i) A high cluster helium abundance scenario, where the HB evolution is characterized by long blue loops; ii) A rotation scenario, where internal rotation during the RGB phase increases the HB core mass; iii) A helium-mixing scenario, where deep mixing on the RGB enhances the envelope helium abundance. All three of these scenarios predict sloped HB's with anomalously bright RR Lyrae variables. We compare this prediction with the properties of the two known RR Lyrae variables in NGC 6388. Other possible observational tests are suggested.
description: 12 pages, including three embedded figures. ApJ (Letters), in press
Reminiscences of Charlotte Garrison, 1967
Publisher: name: Columbia University
Year: 2021
Subjects: Kindergarten teachers
Educators
Kindergarten
Education, Preschool

description: Education, Teachers College, 1906-1908; Director, Horace Mann Kindergarten, 1908-1928; parents' associations; educational toys; progressive education; Manhattanville Nursery; Russia, 1929; impressions of James E. Russell, Grace Dodge, Patty Hill, Agnes Burke, and John Dewey
UECOCOT 2018 cruise,L'Europe R/V
Creators: name: SCHINTU JACQUET Stéphanie
Publisher: name: Sismer
Year: 2018

description: L'objectif général de la campagne océanographique UECOCOT-18 est de compléter le jeu de données préalablement acquis par le MIO et le GIS Posidonie au site du rejet de l'usine de production d'alumine dans le Canyon de Cassidaigne. Ces précédentes données ont été acquises dans le cadre du suivi environnemental réalisé entre 2016 et 2018 suite au décret préfectoral du 28 décembre 2015 autorisant la poursuite du rejet de l'effluent liquide résiduel de l'usine en mer. Les échantillons d'eau prélevés permettront de tracer l'impact du rejet en mer en terme de contaminants métalliques.En raison du mauvais temps, aucun prélèvement n'a pu être effectué et un seul jour de mer a été réalisé.
Melittin induces ferroptosis and ER stress-CHOP-mediated apoptosis in A549 cells
Creators: name: Li, Xuan
name: Zhu, Sen
name: Li, Zheng
name: Meng, Yu-Qi
name: Huang, Su-Jie
name: Yu, Qi-Yao
name: Li, Bin
Publisher: name: Taylor & Francis
Year: 2022
Subjects: subject: Biophysics
subject: Biochemistry
subject: Cell Biology
subject: Genetics
subject: FOS: Biological sciences
subject: Molecular Biology
subject: Physiology
subject: Chemical Sciences not elsewhere classified
subject: Cancer
subject: Hematology
subject: Infectious Diseases
subject: FOS: Health sciences
subject: Computational Biology

description: Melittin is a natural polypeptide present in bee venom, with significant anti-tumor activity. Melittin has been reported to induce cell death in lung carcinoma cell line A549 cells, suggesting an excellent potential for treating lung cancer. However, the core mechanism underlying melittin-induced cell death in A549 cells remains unclear. This work reports that melittin induces reactive oxygen species (ROS) burst, upregulates intracellular Fe2+ levels, disrupts the glutathione-glutathione peroxidase 4 antioxidant system, and increases lipid peroxide accumulation, eventually inducing cell death, indicating that ferroptosis may be involved in the antitumor effects of melittin in A549 cells. Furthermore, A549 cells treated with the ferroptosis inhibitors ferrostatin-1 and deferoxamine demonstrated that these inhibitors could reverse the cell death induced by melittin, further confirming that melittin induces A549 cell death via ferroptosis. Furthermore, the results also illustrated that melittin activated the endoplasmic reticulum (ER) stress-CHOP (C/EBP homologous protein) apoptotic signal, closely associated with high-level intracellular ROS. The ER stress inhibitor, 4-Phenylbutyric acid, was used to confirm that ER stress-CHOP apoptotic signaling is another molecular mechanism of melittin-induced A549 cell death. Thus, our results demonstrate that ferroptosis and ER stress-CHOP signaling are key molecular mechanisms of melittin-induced cell death in lung cancer. KEY POLICY HIGHLIGHTSMelittin upregulates intracellular Fe2+ levels, leading to the accumulation of lipid peroxides in A549 cells.Melittin disrupts the glutathione-glutathione peroxidase 4 antioxidant system in A549 cells.Melittin induces activation of endoplasmic reticulum stress-C/EBP homologous protein apoptosis signal.Ferroptosis and ER stress are the core molecular mechanisms underlying melittin-induced cell death in A549 cells. Melittin upregulates intracellular Fe2+ levels, leading to the accumulation of lipid peroxides in A549 cells. Melittin disrupts the glutathione-glutathione peroxidase 4 antioxidant system in A549 cells. Melittin induces activation of endoplasmic reticulum stress-C/EBP homologous protein apoptosis signal. Ferroptosis and ER stress are the core molecular mechanisms underlying melittin-induced cell death in A549 cells.
Tide&Gas cruise,Haliotis R/V
Creators: name: BALTZER Agnès
Publisher: name: Sismer
Year: 2021

description: L'influence de la marée semble jouer un rôle non négligeable sur la dynamique du gaz dans les sédiments. Plusieurs papiers récents (Baltzer et al.,  2017; Champilou et al., 2019) évoquent la possibilité également du rôle de la marée comme déclencheur de l'activité des pockmarks. Cette campagne Tide&Gas a permis de regarder sur une période de temps recouvrant des grands coefficients de marée  et des petits coefficients la "remontée" du gaz dans les sédiments pour essayer de suivre cette action de "pompage" du gaz par la marée.
Reminiscences of Chester A. Swinyard, 1972
Publisher: name: Columbia University
Year: 2020
Subjects: Medical scientists
Physicians
Abnormalities, Human
Child health services
Medicine--Research

description: Staff associate, Association for the Aid of Crippled Children, 1958-1971: grants and projects, founding of Teratology Society; Scandinavian grants and programs during the 1960s
Isolation and Expulsion of Divergences in Quantum Field Theory
Creators: name: Klauder, John R.
Publisher: name: arXiv
Year: 1995
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Divergences that arise in the quantization of scalar quantum field models by means of a lattice-space functional integration may be attributed to a single integration variable, and this fact is demonstrated by showing that if the integrand for that single integration variable is appropriately changed, then a perturbation expansion becomes order-by-order finite and divergence free. The paper concludes with a brief review of a current proposal of how an auxiliary, nonclassical potential added to the lattice action of a relativistic scalar field quantization may automatically render an analogous change of the integrand, and thus may lead, as well, to nontrivial and divergence-free results.
description: Latex, 13 pages, no figures
Reminiscences of Chauncey Belknap 1975
Publisher: name: Columbia University
Year: 2020
Subjects: subject: Lawyers
subject: Law
subject: FOS: Law
subject: Jurisprudence
subject: Practice of law

description: Harvard Law School; law clerk for Oliver Wendell Holmes, 1915-16; World War II, relationship with George C. Marshall; counsel for Rockefeller Foundation; selection of judges; lawyers' respect for law, Watergate; impressions of Louis D. Brandeis, Charles Evans Hughes, John D. Rockefeller, Jr.
Magnetothermal disk winds in X-ray binaries: poloidal magnetic fields suppress thermal winds
Creators: name: Waters, Tim
name: Proga, Daniel
Publisher: name: arXiv
Year: 2018
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: Magnetic, radiation pressure, and thermal driving are the three mechanisms capable of launching accretion disk winds. In X-ray binaries, radiation pressure is often not significant, as in many systems the luminosity is too low for driving due to continuum transitions yet too high for driving due to line transitions. This leaves thermal and magnetic driving as the contender launching mechanisms in these systems. Using Athena++, we perform axisymmetric ideal MHD simulations that include radiative heating and cooling processes appropriate for Compton heated winds to show that the inclusion of magnetic fields into a thermally driven wind has the opposite effect of what one might expect: rather than provide a velocity boost, the thermal wind is suppressed in low plasma beta regions where the field lines are strong enough to reshape the direction of the flow. Our analysis reveals that magneto-centrifugal launching is present but weak, while the reduction in wind velocity is not due to the change in gravitational potential through the magnetically imposed streamline geometry, but rather due to the increased flow tube area just above the surface of the disk, which is less conducive to acceleration. Our results suggest that for magnetothermal wind models to be successful at producing fast dense outflows in low mass X-ray binaries, the winds must be magnetically launched well within the Compton radius.
description: 19 pages, updated to match version published in MNRAS
UECOCOT01 cruise,Alis R/V
Creators: name: VARILLON David
Publisher: name: Sismer
Year: 2018

description: Le projet interdisciplinaire UECOCOT visait à développer des outils d'aide à la gestion durable des activités minières afin de permettre la meilleure cohabitation possible entre la dynamique naturelle des environnements (et leur capacité de résistance aux dommages ainsi qu'à leur résilience) et les activités humaines (industrielles ou non). L'objectif global du projet UECOCOT était de répondre à la question suivante« Comment adapter, à un coût socio-économique acceptable, les activités minières pour que leur impact reste compatible avec la durabilité des écosystèmes côtier et littoraux ? »Ainsi, la campagne interdisciplinaire Uecocot (alliant l'étude de l'hydrodynamique, de la biogéochime, de la biologie et de la contamination chimique) à l'échelle du lagon de Koné (Nouvelle-Calédonie) visait à évaluer l'impact de la mise en exploitation d'une mine de nickel à proximité d'un lagon partiellement inscrit au Patrimoine Mondial de l'Humanité par l'UNESCO. Elle s'appuyait sur les acquis d'une précédente campagne pluridisciplinaire réalisée sur le lagon de Ouano (Nouvelle-Calédonie, Chevalier et al., 2015, Sous et al., 2015) qui a permis de valider les protocoles de mise en oeuvre de notre stratégie expérimentale novatrice, associant mesures physiques et biologiques dans les passes et à proximité du récif barrière.Plus précisément, la campagne de mesures avait pour objectif de fournir des informations sur quatre points essentiels. La détermination des flux (hydrodynamique, et biogéochimique) entre la côte, l'océan et le lagon et des connectivités au sein d'un milieu restreint à l'échelle d'un lagon ; L'état écologique du lagon ; Le fonctionnement End to End (bio-hydro-géochimique) de cet écosystème lagonaire ; Les apports miniers (contaminants chimique) et leur impact sur le fonctionnement biogéochimique du lagon. Outre ces informations ciblées, les résultats obtenus devait permettre d'apporter des réponses, partielles ou totales, à un ensemble de questions importantes : Détermination des échelles temporelles caractéristiques des échanges lagon/océan et côte/lagon. Connaissance de l'impact des apports miniers sur le fonctionnement biogéochimique d'un écosystème lagonaire caractérisé par une circulation hydrodynamique spécifique liée à la présence d'une barrière récifale qui ferme partiellement le milieu ; Validation des algorithmes de traitement d'images satellites (Sentinelle 1 et 2) mis au point pour la chlorophylle (Wattelez et al., 2016), la turbidité (Wattelez et al., soumis), et la CDOM (Dupouy et al., in prep.) Détermination de conditions aux limites améliorées et paramétrisation des flux moyens cross-récifaux (eau et éléments biogéochimiques associés) pour les modèles numériques de circulation lagonnaire afin de réaliser d'éventuelles approches d'évolution moyen ou long terme de l'environnement lagonaire.
Reminiscences of Chester Charles Davis, 1953
Publisher: name: Columbia University
Year: 2021
Subjects: Journalists
Agriculturists
Journalism
Agriculture--United States
New Deal, 1933-1939

description: Newspaper work in South Dakota and Montana; Commissioner of Agriculture and Labor in Montana, 1921-1923; Illinois Agricultural Association; Agricultural Adjustment Administration; Federal Reserve System; War Food Administration, 1943
Oscillation mode identifications and models for the delta Scuti star FG Virginis
Creators: name: Viskum, M.
name: Kjeldsen, H.
name: Bedding, T. R.
name: Dall, T. H.
name: Baldry, I. K.
name: Bruntt, H.
name: Frandsen, S.
Publisher: name: arXiv
Year: 1998
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We present new spectroscopic and photometric time series observations of the delta Scuti star FG~Vir. We detect the oscillations via changes in the equivalent widths of hydrogen and metal absorption lines. From the ratios between spectroscopic and photometric amplitudes, we assign l values to the eight strongest oscillation modes. In particular, we identify two radial modes (l =0) and find that the main pulsation mode (147 microHz) has l = 1. One of the radial modes (at 140 microHz) is the fundamental, implying that two modes with lower frequencies are g-modes. For the radial modes, we compare frequencies with those calculated from a scaled delta Scuti star model and derive a density 0.1645 +/- 0.0005 rho_sol. We then obtain a distance of 84 +/- 3 pc, in excellent agreement with the Hipparcos value. Finally, we suggest that a 3.5-day variability in all observables (equivalent widths and intensity) is caused by stellar rotation.
description: 12 pages, latex with figures. Accepted by A&A
An Experimental Study on the Effects of Solvents on the Rate and Selectivity of Organic Reactions
Creators: name: Ganase, Zara
Publisher: name: Imperial College London
Year: 2015

description: In industry, solvents are an important processing aid. They often make up the bulk medium in liquid-phase reactions and have a large impact on process performance, from reaction rate to environmental impact. Traditionally solvents are chosen based on heuristics, experience and knowledge of the reaction. Recently systematic methodologies for choosing a solvent which can maximise the rate of a reaction have started to emerge (R. Gani, C. Jiménez-González and D. J. Constable, Comp. Chem. Eng., 29, 1661-1676, 2005 and M. Folić, C. S. Adjiman and E. N. Pistikopolous, Am. Inst. Chem. Eng. J., 53 (5), 1240-1256, 2007). In this work, a systematic experimental protocol for gaining insight into a specific reaction by monitoring the kinetics of this reaction in a variety of solvents using in situ 1H NMR spectroscopy and obtaining the reaction rate constants by nonlinear parameter estimation is presented. The methodology has been applied to an SN2 reaction, namely a Menschutkin reaction, in which a tertiary amine is added to a primary haloalkane to form a quaternary ammonium salt. This reaction has been chosen because it is a classic reaction to study solvent effects as this type of reaction is very sensitive to solvents and there is evidence that an empirical model of solvent effects can be developed. Reaction rate constants have been successfully determined for 10 deuterated solvents at ambient temperature (25 °C) and pressure (1 atm) using in situ 1H NMR spectroscopy. The reaction rate constants have been found to vary over two orders of magnitude depending on the solvent used. This systematic methodology has also been applied to the alkylation reaction of sodium β-naphthoxide and benzyl bromide which forms the products 1-benzyl-2-naphthyl ether and 1-benzyl-2-naphthol. It is known from the literature that depending upon the solvent used the ratio of these products vary accordingly (N. Kornblum, R. Selzer and P. Haberfield, J. Am. Chem. Soc., 85 (8) 1148-1154, 1963). In highly dipolar aprotic solvents such as DMSO and DMF the product favoured will be 1-benzyl-2-naphthyl with percentage yields as high as 95 % and 97 % respectively, whereas in polar protic solvents for example, water and 2,2,2-trifluroethanol (solvents that are capable of forming hydrogen bonds) the other product 1-benzyl-2-naphthol is more favoured in yields as high as 84 % and 85 % respectively. The kinetics and selectivity of this reaction have been studied in 9 solvents by in situ 1H NMR spectroscopy at ambient temperature (25 °C) and pressure (1 atm). This experimental study shows the strong variation of selectivity and the differences in the reaction rates, which are all dependent on the solvent.
Endothelial function/ dysfunction and oxidative stress during ischaemia reperfusion injury as a consequence of intermittent claudication. Is good endothelial function a prognostic indicator for poor cardiovascular outcome in intermittent claudication?
Creators: name: Jaffer, Usman
Publisher: name: Imperial College London
Year: 2013

description: Peripheral Vascular Disease (PVD) has a major morbidity and mortality in the general population. The spectrum of PVD ranges from intermittent claudication to critical limb ischaemia. There is a high prevalence of intermittent claudication in the general population, however only five to ten percent will progress to more severe disease. The progression of disease is at present unpredictable. There is a growing awareness that patients with intermittent claudication may have differing propensities for developing cardiovascular morbidity and mortality. This study aims to investigate the relationship between the endothelial response to exercise in the macro and microcirculation and correlate this with plasma inflammatory cytokine levels, plasma oxidative state and a marker of acute kidney injury in patients with peripheral vascular disease and healthy controls. This information may lead to a new screening test for patients with an increased risk of disease progression who once identified could be better managed to reduce their risk. Furthermore potential new cytokine targets for halting disease progression and potential treatment will be investigated.
Cypraea nucleus Linnaeus, 1758, spec. nov.
Creators: name: Linnaeus, Carolus
Publisher: name: Laurentius Salvius
Year: 1758
Subjects: Biodiversity
Taxonomy
Animalia
Mollusca
Gastropoda
Littorinimorpha
Cypraeidae
Cypraea
Cypraea nucleus

description: Cypraea nucleus [spec. nov.]
C. testa utrinque marginata rugosa: supra punctata tuberculis, subrostrata.
Rumph. mus. t. 39. f. I. Nux avellana granulata.
Gvalt. test. t. 14. f. S.
Argenv. conch. t. 21. f. V.
Pet. amb. t. 16. f. 11.
List. conch. 4. s. 9. c. 8. t. 2. f. 3.
Habitat in O. Indiae orientalis.
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 724-725, DOI: 10.5962/bhl.title.542, http://zenodo.org/record/3922206
Electronic Supplementary Materials from Phylogenetic non-independence in rates of trait evolution
Creators: name: Sakamoto, Manabu
name: Venditti, Chris
Publisher: name: The Royal Society
Year: 2018
Subjects: subject: Evolutionary Biology
subject: FOS: Biological sciences

description: Supporting Information: 1. Description of rates of bite force evolution; 2. Supplementary Material and Methods; 3. Supplementary Discussions; 4. Description of supporting data
ESM file Gasparini & Evans from Female control over multiple matings increases the opportunity for postcopulatory sexual selection
Creators: name: Gasparini, Clelia
name: Evans, Jonathan P.
Publisher: name: The Royal Society
Year: 2018
Subjects: subject: Evolutionary Biology
subject: FOS: Biological sciences
subject: 60801 Animal Behaviour

description: Supplementary Figures S1 & S2
UKS4 cruise,Jean Charcot R/V
Creators: name: LE SUAVE Raymond
Publisher: name: Sismer
Year: 1989

description: Reconnaissance de traces de câble sous-marin entre l'Angleterre et l'Espagne. Prestation commerciale pour British Telecom et Telefonica de Espana SA. Contrat IFREMER : 89/2215067/F.
Reminiscences of Chester Bowles, 1963
Publisher: name: Columbia University
Year: 2021
Subjects: Government executives--United States
Diplomats--United States
Advertising
New Deal, 1933-1939

description: Education at Choate and Yale; advertising, 1925; Benton and Bowles; radio advertising, product research and pricing; Defense Council; America First movement; Connecticut rationing administrator; Price Administrator; relations with Congress, Cabinet, and government officials; Office of Price Administration; stabilization, postwar period; campaign for Democratic gubernatorial nomination, Connecticut, 1946; Americans for Democratic Action; United Nations Educational, Scientific and Cultural Organization, United Nations International Children's Emergency Fund, United Nations Relief and Rehablitation Administration, 1946-1947; Governor, Connecticut, 1948-1950; appointment of William Benton as Senator from Connecticut; 1950 campaign; Ambassador to India, 1951-1953; Senate campaign, 1958; posts and relationships, Kennedy administration; Ambassador to India, 1963; Observations on national and international political figures, especially Franklin D. Roosevelt, Eleanor Roosevelt, Harry Truman, John F. Kennedy, James Byrnes, Donald Nelson, Jawaharlal Nehru, Adlai E. Stevenson
MOESM1 of Dickkopf-related protein 1, a new biomarker for local immune status and poor prognosis among patients with colorectal liver Oligometastases: a retrospective study
Creators: name: Sui, Qiaoqi
name: Zheng, Jian
name: Liu, Dingxin
name: Peng, Jianhong
name: Ou, Qingjian
name: Tang, Jinghua
name: Li, Yuan
name: Kong, Lingheng
name: Jiang, Wu
name: Xiao, Binyi
name: Chao, Xue
name: Pan, Zhizhong
name: Zhang, Huizhong
name: Ding, Pei-Rong
Publisher: name: figshare
Year: 2019
Subjects: subject: Medicine
subject: Biotechnology
subject: Immunology
subject: FOS: Clinical medicine
subject: Biological Sciences not elsewhere classified
subject: Mathematical Sciences not elsewhere classified
subject: Cancer

description: Additional file 1: Table S1. Univariate and multivariate Cox proportional hazards regression models for OS.
ULYSSE cruise,Pourquoi pas ? R/V
Creators: name: LAIGLE Mireille
name: SACHPAZI Maria
Publisher: name: Sismer
Year: 2012

description: Cette campagne a un double objectif : Caractériser la variabilité de la structure profonde (0-15 km) de ce méga-chevauchement et de ses épontes sur une grille de profils multi-trace allant de l'Ouest de la Crète jusqu'à la zone de rupture du récent séisme de Methoni M 6.9 de Février 2008, et contraindre la topographie du socle du domaine avant-arc de la subduction en vue d'améliorer la localisation de la sismicité offshore (enregistrée en 2008-2009 par un réseau amphibien pendant 2 fois 6 mois), identifier les failles actives et caractériser la déformation actuelle qui l'affectent et discuter des liens avec l'activité sismique ainsi relocalisée de manière fiable. Prolonger l'imagerie de ce méga-chevauchement et de ses épontes au-delà du multiple du fond de l'eau, à plus grandes profondeurs (15-40 km), par sismique réfraction sur 25 OBS (Sismomètres fond de mer) le long de deux grands transects passant par les détroits de Cythère et d'Anticythère, et préciser la position du Moho Egéen sur ce méga-chevauchement ainsi que la nature des matériaux du coin mantellique.Il était prévu dans la demande de campagne initiale une acquisition en continu du sondeur multifaisceaux. Malheureusement, faute de disponibilité du personnel technique dédié à l'acquisition et au traitement de ces données, c'est l'équipe de la multitrace qui a été chargée de l'acquisition, impliquant que cela ne se fasse qu'en dehors des périodes d'acquisition par la flûte ainsi qu'une indisponibilité pour traiter les données à bord.Plan de position initialement prévu : profils sismique réflexion multitrace à acquérir (traits rouges); profils sismique réfraction à acquérir (traits bleus), avec sites de déploiement d'OBS prévisionnels (points noirs et blancs) ; Sont également indiqués, les profils sismiques anciens (traits noirs), les OBS déployés en 2008-2009 pour la sismicité (points colorés) ainsi que la limite externe du backstop de la plaque égéenne supérieure (trait marron épais). L'île de Milos, située à l'extrémité nord des deux grands transects marque la position de l'arc volcanique.
Assessing ectopic fat heterogeneity in human volunteers
Creators: name: Al Saud, Nouf
Publisher: name: Imperial College London
Year: 2014

description: Accumulation of ectopic fat in liver and pancreas are seen as key indicators of the metabolic syndrome affecting over a third of the population in the western world. Deposition of these ectopic fat depots is linked to insulin resistance, a major risk factor in the development of type 2 diabetes. Quantifying ectopic fat deposition, without the use of biopsy, has always been a challenge. Magnetic resonance (MR) techniques have emerged as the gold-standard for estimating overall fat deposition. However, little is known on the regional variation of fat deposition in liver and pancreas in human subjects. The aim of this project was to determine, using an in vivo Multi-Echo MR imaging technique, regional variations in ectopic fat deposition in liver and pancreas and assess the potential impact of environmental factors, including BMI, age, and gender. The overall ranges in liver and pancreas fat ranged from 0.69- 32.27 % and 0.40 - 24.18% respectively. There was a strong correlation between liver fat, body weight, waist-to-hip ratio and waist circumferences. A significant correlation between pancreatic fat and waist-to-hip ratio, particularly in men, was also observed. The relationship between liver and pancreatic fat was surprisingly weak, suggesting different mechanism of accumulation. Regional variations in liver and pancreatic fat were assessed by using surgical segmentations as anatomical markers, resulting in 8 anatomical segments for the liver and 3 for the pancreas. Intra-abdominal adipose tissue and age had the largest effect on liver and pancreatic fat deposition. Relative physical activity influenced the overall levels of liver ectopic fat content but did not significantly affect regional distribution in the pancreas. No gender differences in fat distribution in the liver were detected but a strong correlation with pancreas and men was detected. Life-style interventions, such as weight loss programs, showed significant reduction in overall liver and pancreatic fat content. As for bariatric interventions, more significant reduction of overall ectopic fat in liver was seen with an increase in total and regional pancreas fat content. In conclusion, I have shown, utilising an anatomical compartmentalisation of the liver and pancreas, that there are significant heterogeneity in fat deposition in the pancreas, and that different regions respond variably to lifestyle interventions. There is a more homogeneous fat deposition in the liver, which is more consistently modulated in response to lifestyle changes.
ULYXDEMO 2024 cruise,L'Atalante R/V
Creators: name: RAUGEL Ewen
name: Javier, ESCARTIN
Publisher: name: Sismer
Year: 2024

description: La campagne ULYXDEMO clôture le projet de développement de l'AUV UlyX avec deux objectifs principaux.Dans un premier temps, il s'agit de fiabiliser le système et de l'inscrire dans le processus de transfert opérationnel avec la filiale Genavir. Cela inclut la validation de l'ensemble des fonctionnalités qui seront transférées et l'évaluation des performances de l'engin qui serviront de référence dans son premier cycle d'opération. Cette campagne est aussi l'occasion de consolider la formation d'une équipe élargie Genavir/DSM à l'opération de l'engin.Le second objectif est d'évaluer l'ensemble des fonctionnalités scientifiques en s'appuyant sur une équipe scientifique issue du groupe de travail scientifique CORAL, présidé par Javier Escartin. UlyX est équipé des équipements suivants : un sondeur multifaisceaux EM2040, un appareil photo numérique (avec 2 flash), une CTD, des capteurs physico-chimique : pH, redox, O2, turbidimètre, magnétomètre.Les plongées AUV auront donc des objectifs scientifiques qui permettront aux scientifiques de valider la navigation du véhicule, les capacités de cartographie acoustique du véhicule, les capacités d'imagerie avec les caméras optiques (survey optique, photo pour réalité terrain), la cohérence des capteurs physico-chimiques montés dans le véhicule.En plus des tests de l'AUV ULYX, et en fonction du temps disponible, différentes opérations connexes ont été réalisées : Cartographie des fonds marins à l'aide des différents sondeurs de l'Atalante Des mesures CTD dans la colonne d'eau Des draguesCes opérations ont notamment permis une comparaison avec les données de l'AUV (cartographie, CTD).
Cypraea staphylaea Linnaeus, 1758, spec. nov.
Creators: name: Linnaeus, Carolus
Publisher: name: Laurentius Salvius
Year: 1758
Subjects: Biodiversity
Taxonomy
Animalia
Mollusca
Gastropoda
Littorinimorpha
Cypraeidae
Cypraea
Cypraea staphylaea

description: Cypraea staphylaea [spec. nov.]
C. testa, punctis elevatis sine striis, subrostrata, extremitatibus luteis.
Habitat ..
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 725, DOI: 10.5962/bhl.title.542, http://zenodo.org/record/3922206
UNIMED 1 cruise,Téthys II R/V
Creators: name: RIDAME Céline
Publisher: name: Sismer
Year: 2009

description: L'objectif global des campagnes UNIMED menées en 2009 est de déterminer l'importance biogéochimique du processus de diazotrophie (ou fixation de N2) dans le fonctionnement de l'écosystème méditerranéen. Plus spécifiquement, nous avons focalisé notre étude sur la variabilité saisonnière de la diazotrophie, de ses facteurs biogéochimiques de contrôle (P, Fe), de l'abondance et de la diversité des diazotrophes dans une zone hauturière non anthropisée de la Méditerranée nord occidentale : DYFAMED. Le projet de rattachement est ANR UNIMED (soumis fin 2009).
UNIMED 2 cruise,Téthys II R/V
Creators: name: RIDAME Céline
Publisher: name: Sismer
Year: 2009

description: L'objectif global des campagnes UNIMED menées en 2009 est de déterminer l'importance biogéochimique du processus de diazotrophie (ou fixation de N2) dans le fonctionnement de l'écosystème méditerranéen. Plus spécifiquement, nous avons focalisé notre étude sur la variabilité saisonnière de la diazotrophie, de ses facteurs biogéochimiques de contrôle (P, Fe), de l'abondance et de la diversité des diazotrophes dans une zone hauturière non anthropisée de la Méditerranée nord occidentale : DYFAMED. Le projet de rattachement est ANR UNIMED (soumis fin 2009).