cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Discontinuous Galerkin Methods for Hyperbolic Conservation Laws
Creators: name: Hadi, Justin
Publisher: name: Imperial College London
Year: 2012

description: New numerical methods are developed for single phase compressible gas flow and two phase gas/liquid flow in the framework of the discontinuous Galerkin finite element method (DGFEM) and applied to Riemann problems. A residual based diffusion scheme inspired by the streamline upwind Petrov-Galerkin method (SUPG) of Brookes and Hughes [15] is applied to the Euler equations of gas dynamics and the single pressure incompressible liquid/compressible gas flow system of Toumi and Kumbaro [137]. A Roe [119] based approximate Riemann solver is applied. To minimise unstable overshoots, diffusivity is added in the direction of the gradient of the solution as opposed to the direction of the streamlines in SUPG for the continuous finite element method (CFEM). The methods are tested on Cartesian meshes with scalar advection problems, the computationally challenging Sod shock tube and Lax Riemann problems, explosion problems in gas dynamics and the water faucet test and explosion problems in two phase flow. An extension to two dimensions and comparisons to existing methods are made. A framework for the well posedness of two phase flow equations is posited and virtual mass terms are added to the two phase flow equations of Toumi and Kumbaro to ensure hyperbolicity. A viscous path based Roe solver for DGFEM is applied mirroring the method of Toumi and Kumbaro in a framework for discontinuous solutions.
Solitons in a discrete model of chiral liquid crystals with competing interactions
Creators: name: Dikandé, Alain M.
name: Nyanga, Bernard Y.
name: Tchouobiap, S. E. Mkam
Publisher: name: arXiv
Year: 2018
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: Pattern Formation and Solitons (nlin.PS)
subject: FOS: Physical sciences

description: Chiral liquid crystals exhibit in-plane spontaneous polarizations, however in their smectic phase the primary order parameter is a tilt vector associated with molecular rotations around the long molecular axis parallel to the director. The molecular rotations lead to several distinct phases among which a domain-wall texture with a periodic-kink soliton profile. In this study the formation of domain walls in smectic chiral liquid crystals is analyzed, with emphasis on the competition between ising-type symmetric and antisymmetric nearest-neighbor interactions, and an in-plane electric field. It is found that antisymmetric intermolecular interactions, which are of chiral origin, increase the width of kink structures in the domain wall at moderate intensity of the $y$ component of the electric field. Increasing the $x$ component of the electric field creates unstable condition for soliton formation irrespective of magnitudes of the symmetric and chiral intermolecular interactions. Stability condition for single-kink domain-wall structures in the discrete molecular chain, is discussed by estimating the Peierls stress experienced by the single-kink soliton. Results suggest that chirality lowers the Peierls-Nabarro barrier, hence increasing the lifetime of single-kink structures in the discrete medium.
description: 7 pages, 5 figures, submitted
Morphology and vascular transport in the human placenta
Creators: name: Gill, Joshua Stephen
Publisher: name: Imperial College London
Year: 2012

description: The fetal origins hypothesis suggests that interuterine life plays a more significant role in life-long adult health than previously thought. The human placenta is the crucial organ that supplies the developing fetus with oxygen and nutrients, and its function is closely related to the health of the baby. A more quantitative understanding of the placenta is sought, to provide more accurate statistics and predictions regarding fetal health. This research aims to quantify placental function and growth at two scales — gross placental morphology and oxygen transport at the microscopic level. Placental shape is quantified via Fourier series and moments, and probability distribution functions (similar to histograms) are calculated for measured characteristics. Analysis of distribution functions provides some information regarding the likely development of the placenta. Most distribution functions found are not normal (Gaussian), and posses power-law tails, indicative of more complex random growth phenomena. Oxygen transport is one of the fundamental functions of the placenta, and this research aims to quantify how efficiently various exchange geometries function. Segmented histology slides of terminal villi (the site of oxygen exchange) are used in numerical simulations of stationary diffusion within realistic geometries for the first time. Capillary numbers, positions and calibres are measured and combined in a number of ways to measure transport efficiency. Efficiency is then correlated with measures such as birth weight, and fractal vascular efficiency (which relates the mass of fetus created per mass of placenta). Significant correlations are found between efficient capillary arrangements and ‘healthy’ whole placental vasculature.
A new dimeric alkylresorcinol from the stem barks of Swintonia floribunda (Anacardiaceae)
Creators: name: Dang, Phu H.
name: Nguyen, Linh T. T.
name: Nguyen, Hue T. T.
name: Le, Tho H.
name: Do, Truong N. V.
name: Nguyen, Hai X.
name: Le, Nghia D.
name: Nguyen, Mai T. T.
name: Nguyen, Nhan T.
Publisher: name: Taylor & Francis
Year: 2019
Subjects: subject: Biochemistry
subject: Pharmacology
subject: 59999 Environmental Sciences not elsewhere classified
subject: FOS: Earth and related environmental sciences
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: Ecology
subject: FOS: Biological sciences
subject: 69999 Biological Sciences not elsewhere classified
subject: Inorganic Chemistry

description: From an EtOAc-soluble fraction of the stem barks of Swintonia floribunda (Anacardiaceae), one new dimeric alkylresorcinol named integracin E (1), together with 4 known compounds (2–5) were isolated. Their chemical structures were elucidated based on the spectroscopic data interpretation. The absolute configuration of 1 was determined by the specific rotation analysis of its acid-catalyzed hydrolysis product. Compound 1 showed potent tyrosinase inhibitory activity with an IC50 value of 48.2 μM.
Mechanisms Underlying Immunomodulation of HIV-1-Specific T-cell Responses
Creators: name: Herasimtschuk, Anna Aracely
Publisher: name: Imperial College London
Year: 2012

description: Highly active antiretroviral therapy (HAART) improves morbidity and mortality in HIV-1-infected patients yet reversal of immune dysfunction remains incomplete. The study objective was to determine the impact of immunomodulatory agents on T-cell function and phenotype in treated, chronic HIV-1 infection. Recombinant human growth hormone (rhGH) was administered daily to patients at a pharmacological dose for 12 weeks. Proliferative CD4 and IFN-γ-producing CD8 HIV- 1-specific T-cell responses were induced, however these responses declined with less frequent dosing. In a further study, patients that received a lower, physiological dose of rhGH for 40 weeks demonstrated increased IFN-γ ELISpot responses to pools of both MHC Class I and MHC Class II restricted HIV-1 Gag peptides at week 40. T-cell phenotypes showed a trend toward a reduction in the expression of activation markers. A randomised, open-label, phase I clinical trial investigated the effects of therapeutic immunisation, interleukin (IL)-2, granulocyte macrophage colony stimulating factor (GM-CSF) and rhGH in HIV-1+ subjects on HAART. Immunisation plus IL-2, GM-CSF and rhGH administration resulted in increased IFN-γ, IL-2 and perforin production in response to peptide pools of Gag, elevated CD4 T-cell counts and improved CD4/CD8 T-cell ratios at week 48. Subjects that received cytokine and hormone therapy (with or without immunisation) showed reduced immune activation and senescence, and for all patients, exhaustion markers were downregulated by week 48. Distinct Gag- and Nef- specific responses were not found to correlate with particular immunophenotypes. Further analysis of T-cell phenotypes from healthy controls showed immune defects to persist in HIV-1 infection despite HAART, and notwithstanding that, duration of HAART positively correlated with CD4 T-cell count. Together, the data presented here demonstrate the beneficial effects of immunotherapy in treated chronic HIV-1 infection and illustrate the potential to reverse T-cell dysfunction, furthermore highlighting the necessity for the induction and maintenance of HIV-1-specific immune responses.
Class III Cultural Resources Reconnaissance of a Drill Pad and Skid Trail for Drill hole U20AM
Creators: name: Pippin, Lonnie C.
name: Reno, Ronald L.
Year: 1982
Subjects: Clark (County)
United States of America (Country)
Las Vegas, Nevada
Nevada (State / Territory)
Nye (County)
Nellis Air Force Base, Nevada
26NY1917
26NY1916
26NY1920
26NY952
26NY1914
26NY1912
26NY1919
26NY1918
26NY1915
26NY1913
SR120882-1
Reconnaissance / Survey

description: A preconstruction survey conducted at Drill Pad U20ab disclosed a large lithic scatter (26Ny9S2) adjacent to that pad. Concomitantly, the reconnaissance of a 1 km square sample unite (A2a-140), located approximately 2 km from the proposed U20am Drill Pad, disclosed four archaeological sites (26Ny1912, 26Ny1914, 26Ny1918 and 26Ny1919) that may reflect the remains of pinyon nut caches; five separate concentrations of lithic artifacts (26Ny1913, 26Ny1915, 26Ny1916, 26Ny1917 and 26Ny1920) and several isolated artifacts. The results of these cultural resource surveys, however, have never been reported due to a lack of funds.
Additional file 1 of Evaluation of the anticarcinogenic potential of the endophyte, Streptomyces sp. LRE541 isolated from Lilium davidii var. unicolor (Hoog) Cotton
Creators: name: Ma, Aiai
name: Jiang, Kan
name: Chen, Bin
name: Chen, Shasha
name: Qi, Xinge
name: Lu, Huining
name: Liu, Junlin
name: Zhou, Xuan
name: Gao, Tan
name: Li, Jinhui
name: Zhao, Changming
Publisher: name: figshare
Year: 2021
Subjects: subject: Biochemistry
subject: Cell Biology
subject: Molecular Biology
subject: Pharmacology
subject: Biotechnology
subject: Environmental Sciences not elsewhere classified
subject: Chemical Sciences not elsewhere classified
subject: Ecology
subject: FOS: Biological sciences
subject: Biological Sciences not elsewhere classified
subject: Cancer

description: Additional file 1: Table S1. Antimicrobial activities of the actinomycete-like isolates from the root tissues of Lilium davidii var. unicolor (Hoog) Cotton. Table S2. Chemical constituents of antitumor-(1–39), antioxidant-(40–49), and antimicrobial-(50–65) compounds identified in the LRE541 extract by the UHPLC-MS/MS analysis. Figure S1. Total iron chromatography of the LRE541 extract by the UHPLC-MS/MS analysis. Figure S2. Chemical structures of the antitumor (1–39)-, antioxidant (40–49)-, and antimicrobial (50–65)-compounds from the LRE541 extract. Figure S3. 13C NMR spectrum of epsilon-pyrromycinone in CDCl3 (100 MHz). Figure S4. 1H NMR spectrum of Epsilon-pyrromycinone in CDCl3 (400 MHz). Figure S5. 13C NMR spectrum of 4-deoxy-ε-pyrromycinone in CDCl3 (100 MHz). Figure S6. 1H NMR spectrum of 4-deoxy-ε-pyrromycinone in CDCl3 (400 MHz). Figure S7. HMBC spectrum of 4-deoxy-ε-pyrromycinone in CDCl3. Figure S8. HSQC spectrum of 4-deoxy-ε-pyrromycinone in CDCl3. Figure S9. 13C NMR spectrum of Neoechinulin A in CDCl3 (100 MHz). Figure S10. 1H NMR spectrum of Neoechinulin A in CDCl3 (400 MHz).
Face Recognition from Face Signatures
Creators: name: Hanafi, Marsyita
Publisher: name: Imperial College London
Year: 2012

description: This thesis presents techniques for detecting and recognizing faces under various imaging conditions. In particular, it presents a system that combines several methods for face detection and recognition. Initially, the faces in the images are located using the Viola-Jones method and each detected face is represented by a subimage. Then, an eye and mouth detection method is used to identify the coordinates of the eyes and mouth, which are then used to update the subimages so that the subimages contain only the face area. After that, a method based on Bayesian estimation and a fuzzy membership function is used to identify the actual faces on both subimages (obtained from the first and second steps). Then, a face similarity measure is used to locate the oval shape of a face in both subimages. The similarity measures between the two faces are compared and the one with the highest value is selected. In the recognition task, the Trace transform method is used to extract the face signatures from the oval shape face. These signatures are evaluated using the BANCA and FERET databases in authentication tasks. Here, the signatures with discriminating ability are selected and were used to construct a classifier. However, the classifier was shown to be a weak classifier. This problem is tackled by constructing a boosted assembly of classifiers developed by a Gentle Adaboost algorithm. The proposed methodologies are evaluated using a family album database.
title: ADCO, Grènetier de Cîteaux : comptes (1497-1504) (11 H 1172), f. 00142
Creators: name: de la Côte-d'Or, Archives départementales
name: Petot, Frédérique
name: Projet CBMA
name: CBMA/CG21/F.PETOT/2019
name: Archives Départementales De La Côte-D'Or
Publisher: name: NAKALA - https://nakala.fr (Huma-Num - CNRS)
publisherIdentifier: https://ror.org/04ces3204
publisherIdentifierScheme: ROR
Year: 2020
Subjects: subject: LaMOP
subject: comptes
subject: Laboratoire de Médiévistique Occidentale de Paris
subject: Corpus Burgundiae Medii Aevi
subject: Chartes de la Bourgogne du Moyen Âge

description: Grènetier de Cîteaux : comptes (1497-1504), Archives départementales de la Côte-d'Or, (11 H 1172). Numérisation en mode image.
description: Relation: http://www.cbma-project.eu/
description: Bibliographic citation: Grènetier de Cîteaux : comptes (1497-1504), Archives départementales de la Côte-d'Or, (11 H 1172), f. 00142, 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
Hydrodynamics of unsaturated particle beds pertaining to heap leaching
Creators: name: Ilankoon, Ilankoon Mudiyanselage Saman Kumara
Publisher: name: Imperial College London
Year: 2012

description: Heap leaching is a method for extracting metals from ores and is particularly applicable to low grade deposits due to its low operating and capital costs. The main drawback of heap leaching is the lower recoveries than more traditional techniques, such as flotation followed by smelting. The major contributing factors are inefficiencies in the liquid addition and mass transport. This thesis describes a combined experimental and theoretical modelling approach for better understanding the behaviour of these complex multiphase systems. The first major finding was that these systems exhibit hysteresis in the liquid holdup as the flow rate is varied. This means that the commonly used approach of directly correlating the flow rate and holdup is not entirely appropriate. A novel experimental and analysis procedure was used to demonstrate that the main reason for the hysteresis was an increase in the number of flow paths as the liquid flow was increased, but no subsequent decrease in the flow paths as the flow is decreased. This work developed a theoretical liquid holdup model to describe the flow behaviour in between the particles by performing liquid flow experiments in a non-porous model glass bead system and slightly porous ore system in a way that it accounts for liquid content hysteresis in both systems. The experimental results showed the effect of inter- and intra-particle porosity on heap flow behaviour. If the inter-particle liquid content is separated from the liquid held within the ore particles, it was shown that both systems follow a similar square relationship between the two model parameters and the only difference is the pre-factor in the flow model. This demonstrated the importance of separating these two contributions to the liquid holdup when trying to make accurate predictions. The transient flow behaviour of the packed bed systems was described both experimentally and using simulations in order to both validate the flow models and to study the behaviour during start-up and shutdown. The salt tracer tests and Positron Emission Particle Tracking (PEPT) are independent techniques to measure the dispersion behaviour in packed beds and column leaching. It was shown that the results from these two methods are very similar, but that the PEPT results also provide more details as to the mechanisms involved.
High-Resolution Imaging of Natural Killer Cell Immunological Synapses
Creators: name: Oddos, Stephane
Publisher: name: Imperial College London
Year: 2010

description: The first observations of the immunological synapse have demonstrated that immune-cell signalling in situ does not simply depend on protein structures and signalling pathways but also on temporal and spatial coordinates. With the advent of new live-cell, three-dimensional fluorescence microscopy techniques our understanding of the relationship between the formation of the immunological synapse and the development of an immune response has been greatly improved. Using artificial activating substrates as surrogate target cells or antigen presenting cells in conventional microscopes has so far been the state-of-the-art to obtain high-resolution images of immunological synapses. However, such artificial substrates may not fully recapitulate the complexity of intercellular interactions. Newly developed super-resolution techniques are very promising, but they remain inadequate for live-cell imaging. Technical improvements are therefore crucially needed to address these bottlenecks and improve our understanding of immune-cell signalling. In this report we achieve high-speed high-resolution imaging of live intercellular immunological synapses by combining confocal microscopy with optical tweezers. We design, build and demonstrate the performance and flexibility of the instrument by imaging a variety of molecules at T cell and NK cell synapses. NKG2D is an important receptor that allows NK cells to recognise and kill tumour cells. Due to the lack of suitable imaging technology, NKG2D signalling at the synapse remains unclear. We specifically use our new instrument to gain further understanding of NKG2D signalling, signal integration, and NKG2D-mediated cytotoxicity. For the first time at live intercellular NK-cell immunological synapses, we describe the formation and the dynamics of NKG2D microclusters. We show that these microclusters actively signal and that they coalesce around a secretory domain through which lytic secretions are delivered. Importantly, these results suggest that the physical distribution of NKG2D at the immunological synapse may play an important role in directing lytic-secretion delivery at the NK cell synapse.
Oral history interview with John Stevens, 1971
Publisher: name: Columbia University
Year: 2019
Subjects: Journalism--Social aspects
Newspapers--Sections, columns, etc
Journalists
African Americans--Civil rights
African American press
African American journalists

description: Henry La Brie's 1971 interview with John Stevens begins with a discussion about the need for a national black newspaper. Next, La Brie asks Stevens what sources and research methodologies he uses in his writing. They discuss cartoons in black newspapers and the specific failures and successes of the black press. La Brie asks about the social role of the black press, Stevens' predictions for the future of the black press, and why the black press had been established. He and Stevens discuss if black press was becoming more representative in its coverage of minority affairs at the time of the interview. La Brie and Stevens discuss what distinguishes the black press from its white counterpart. The interview moves to white readership of black newspapers. Stevens explains how black newspapers' identity gives them a niche in the media market. La Brie asks about the unique challenges facing the black press and its impact on society. The interview concludes with La Brie asking if the black press supplements or substitutes the black reader's news diet.
Stellar abundance of binary stars: their role in determining the formation location of super-Earths and ice giants
Creators: name: Bitsch, Bertram
name: Forsberg, Rebecca
name: Liu, Fan
name: Johansen, Anders
Publisher: name: arXiv
Year: 2018
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: Binary stars form from the same parent molecular cloud and thus have the same chemical composition. Forming planets take building material (solids) away from the surrounding protoplanetary disc. Assuming that the disc's accretion onto the star is the main process that clears the disc, the atmosphere of the star will show abundance reductions caused by the material accreted by the forming planet(s). If planets are only forming around one star of a binary system, the planet formation process can result in abundance differences in wide binary stars, if their natal protoplanetary discs do not interact during planet formation. Abundance differences in the atmospheres of wide binaries hosting giant planets have already been observed and linked to the formation location of giant planets. Here, we model how much building material is taken away for super-Earth planets that form inside/outside of the water ice line as well as ice giants forming inside/outside of the CO ice line. Our model predicts a significant abundance difference $Δ$[X/H] in the stellar atmospheres of the planet-hosting binary component. Our model predicts that super-Earths that form inside the water ice line ($rr_{\rm H_2O}$) in the water rich parts of the disc. Additionally, our model shows that the $Δ$[Fe/H]/$Δ$[C/H] abundance difference in the host star is at least a factor of 3 larger for ice giants formed at $rr_{\rm CO}$). Future observations of wide binary star systems hosting super-Earths and ice giants could therefore help to constrain the migration pathway of these planets and thus constrain planet formation theories.
description: accepted by MNRAS
Redshift Evolution of the Low-Column Density Lyman alpha Fores
Creators: name: Hu, Esther M.
Publisher: name: arXiv
Year: 1998
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: Knowledge of the evolution of the low column density end of the Ly alpha forest (12.8 < log N_HI < 16.0 cm^-2) can provide substantial insight for models of structure formation and studies of the evolution of the ionizing background. Here we describe the evolution of the b values and column densities of forest clouds over the redshift range 2 < z < 4. While the distribution function for clouds with column densities N_HI < 3 x 10^14 cm^-2 can be well described by a single invariant power law fit with slope ~-1.5 over this range, at higher column densities a break in this distribution function is seen, with a deficiency of high column density clouds relative to the single power-law fit, and with the break point moving to lower column densities for clouds at lower redshifts. The median and cut-off (minimum) b values are seen to decrease at higher redshifts.
description: 6 pages, LaTeX, 4 PostScript figures, uses conf_iap.sty. To appear in the Proceedings of the 13th IAP Colloquium: Structure and Evolution of the IGM from QSO Absorption Line Systems, eds. P. Petitjean and S. Charlot
Duffin-Kemmer-Petiau equation on the quaternion field
Creators: name: De Leo, Stefano
Publisher: name: arXiv
Year: 1995
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We show that the Klein-Gordon equation on the quaternion field is equivalent to a pair of DKP equations. We shall also prove that this pair of DKP equations can be taken back to a pair of new KG equations. We shall emphasize the important difference between the standard and the new KG equations. We also present some qualitative arguments, concerning the possibility of interpreting anomalous solution, within a quaternion quantum field theory.
description: LaTex
Lectures on Non-BPS Dirichlet branes
Creators: name: Gaberdiel, Matthias R
Publisher: name: arXiv
Year: 2000
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: A comprehensive introduction to the boundary state approach to Dirichlet branes is given. Various examples of BPS and non-BPS Dirichlet branes are discussed. In particular, the non-BPS states in the duality of Type IIA on K3 and the heterotic string on T4 are analysed in detail.
description: 46 pages, 5 figures, LaTeX; lectures given at the TMR network school on `Quantum aspects of gauge theories, supersymmetry and quantum gravity', Torino, 26 January - 2 February 2000, and at the `Spring workshop on Superstrings and related matters', Trieste, 27 March - 4 April 2000; references added
Schizocarpus parahumilis Bochkov, Labrzycka, Skoracki & Saveljev 2012
Creators: name: LIU, DONG
name: YI, TIAN-CI
name: XU, YUN
name: ZHANG, ZHI-QIANG
Publisher: name: Zenodo
Year: 2013
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Arachnida
Acari
Listrophoridae
Schizocarpus
Schizocarpus parahumilis

description: Schizocarpus parahumilis Bochkov, Labrzycka, Skoracki & Saveljev, 2012: 53
— Holotype male (ZISP): Podlaskie Voivodeship, Suwałki County, near Wiżajny village, Poland (54°21'50''N, 22°52'6''E).
description: Published as part of LIU, DONG, YI, TIAN-CI, XU, YUN & ZHANG, ZHI-QIANG, 2013, Hotspots of new species discovery: new mite species described during 2007 to 2012, pp. 1-102 in Zootaxa 3663 (1) on page 79, DOI: 10.11646/zootaxa.3663.1.1, http://zenodo.org/record/5630595
A new dimeric alkylresorcinol from the stem barks of Swintonia floribunda (Anacardiaceae)
Creators: name: Dang, Phu H.
name: Nguyen, Linh T. T.
name: Nguyen, Hue T. T.
name: Le, Tho H.
name: Do, Truong N. V.
name: Nguyen, Hai X.
name: Le, Nghia D.
name: Nguyen, Mai T. T.
name: Nguyen, Nhan T.
Publisher: name: Taylor & Francis
Year: 2018
Subjects: subject: Biochemistry
subject: Pharmacology
subject: 59999 Environmental Sciences not elsewhere classified
subject: FOS: Earth and related environmental sciences
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: Ecology
subject: FOS: Biological sciences
subject: 69999 Biological Sciences not elsewhere classified
subject: Inorganic Chemistry

description: From an EtOAc-soluble fraction of the stem barks of Swintonia floribunda (Anacardiaceae), one new dimeric alkylresorcinol named integracin E (1), together with 4 known compounds (2–5) were isolated. Their chemical structures were elucidated based on the spectroscopic data interpretation. The absolute configuration of 1 was determined by the specific rotation analysis of its acid-catalyzed hydrolysis product. Compound 1 showed potent tyrosinase inhibitory activity with an IC50 value of 48.2 μM.
Additional file 1 of Understanding the Sidewall Passivation Effects in AlGaInP/GaInP Micro-LED
Creators: name: Park, Juhyuk
name: Baek, Woojin
name: Geum, Dae-Myeong
name: Kim, Sanghyeon
Publisher: name: figshare
Year: 2022
Subjects: subject: Space Science
subject: Medicine
subject: Cell Biology
subject: Physiology
subject: FOS: Biological sciences
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: Sociology
subject: FOS: Sociology
subject: 69999 Biological Sciences not elsewhere classified
subject: Plant Biology

description: Additional file 1: Supplementary information for optical measurement for low current density: The photodetector measurement.
Additional file 1 of Genome-wide identification and analysis of Oleosin gene family in four cotton species and its involvement in oil accumulation and germination
Creators: name: Yuan, Yanchao
name: Cao, Xinzhe
name: Zhang, Haijun
name: Liu, Chunying
name: Zhang, Yuxi
name: Song, Xian-Liang
name: Gai, Shupeng
Publisher: name: figshare
Year: 2021
Subjects: subject: Plant Biology
subject: FOS: Biological sciences

description: Additional file 1: Figure S1 Chromosome distribution of Oleosin genes in four cotton species. Figure S2 Collinearity analyses of Oleosin genes between G. hirsutum, G. barbadense, G. arboretum, and G. raimondii. Figure S3 The prediction of transmembrane helices in SH GhOLEO proteins. nC, N-terminus inside and C-terminus outside; Nc, N-terminus outside and C-terminus inside. Figure S4 The prediction of transmembrane helices in SL GhOLEO proteins. NC, both N-terminus and C-terminus outside. Figure S5 The prediction of transmembrane helices in U GhOLEO proteins. nC, N-terminus inside and C-terminus outside; Nc, N-terminus outside and C-terminus inside; NC, both N-terminus and C-terminus outside.
Australians' Support for Alcohol Price-based Policies
Creators: name: Cook, Megan
name: Livingston, Michael
name: Vally, Hassan
name: Callinan, Sarah
Publisher: name: La Trobe
Year: 2024
Subjects: classificationCode: 420699
subject: Public health not elsewhere classified
classificationCode: 44
subject: Human society
classificationCode: 4407
subject: Policy and administration

description: original research
High-performance Zinc Oxide Thin-Film Transistors For Large Area Electronics
Creators: name: Bashir, Aneeqa
Publisher: name: Imperial College London
Year: 2011

description: The increasing demand for high performance electronics that can be fabricated onto large area substrates employing low manufacturing cost techniques in recent years has fuelled the development of novel semiconductor materials such as organics and metal oxides, with tailored physical characteristics that are absent in their traditional inorganic counterparts such as silicon. Metal oxide semiconductors, in particular, are highly attractive for implementation into thin-film transistors because of their high charge carrier mobility, optical transparency, excellent chemical stability, mechanical stress tolerance and processing versatility. This thesis focuses on the development of high performance transistors based on zinc oxide (ZnO) semiconducting films grown by spray pyrolysis (SP), a low cost and highly scalable method that has never been used before for the manufacturing of oxide-based thin-film transistors. The physical properties of as-grown ZnO films have been studied using a range of techniques. Despite the simplicity of SP, as-fabricated transistors exhibit electrical characteristics comparable to those obtained from ZnO devices produced using highly sophisticated deposition processes. In particular, electron mobility up to 25 cm2/Vs has been achieved in transistors based on pristine ZnO films grown at 400 °C onto Si/SiO2 substrates utilising aluminium source-drain (S-D) electrodes. A strong dependence of the saturation mobility on the work function of S-D electrodes and the transistor channel length (L) has been established. Short channel transistors are found to exhibit improved performance as compared to long channel ones. This was attributed to grain boundary effects that tend to dominate charge transport in devices with L < 40 μm. High mobility, low operating voltage (<1.5 V) ZnO transistors have also been developed and characterised. This was achieved through the combination of SP, for the deposition of ZnO, and thermally stable solution-processed self-assembling monolayer gate dielectrics. Detailed study of the temperature dependence of the operating characteristics of ZnO transistors revealed a thermally activated electron transport process that was described by invoking the multiple trapping and release model. Importantly, ZnO transistors fabricated by SP are found to exhibit highly stable operating characteristics with a shelf lifetime of several months. The simple SPbased fabrication paradigm demonstrated in this thesis expands the possibilities for the development of advanced simple as well as multi-component oxide semiconductors far beyond those accessible by traditional deposition methods such as sputtering. Furthermore, it offers unprecedented processing scalability hence making it attractive for the manufacturing of future ubiquitous oxide electronics.
A Yang-Mills Theory in Loop Space and Generalized Chapline-Manton Coupling
Creators: name: Nakajima, Tadahito
Publisher: name: arXiv
Year: 2000
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We consider a Yang-Mills theory in loop space with an affine Lie gauge group. The Chapline-Manton coupling, the coupling between Yang-Mills fields and an abelian antisymmetric tensor field of second rank via the Chern-Simons term, is systematically derived within the framework of the Yang-Mills theory. The generalized Chapline-Manton couplings, the couplings among non-abelian tensor fields of second rank, Yang-Mills fields, and an abelian tensor field of third rank, are also derived by applying the non-linear realization method to the Yang-Mills theory. These couplings are accompanied by {\it BF}-like terms.
description: 28 pages, Latex, no figures, references added, revised version with minor changes to appear in Prog.Theor.Phys
The physics of negative refraction and transformation optics
Creators: name: Wee, Wei Hsiung
Publisher: name: Imperial College London
Year: 2011

description: Whilst optics is one of the oldest field in science, there are still aspects of electromagnetism that we are only beginning to uncover. For instance, it was demonstrated that materials with simultaneously negative permittivity and permeability exhibit certain exotic behavior; where familiar physical phenomena, such as refraction, are reversed. As such, these materials came to be known as negative refractive index materials (NRIM) and their collective properties as negative refraction. One of the most important and remarkable property of NRIM is perfect lensing - the ability to transport both supra and sub-wavelength optical information from one surface (object plane) to another (image plane), forming images with unprecedented resolution, beyond the diffraction limit. Perfect lensing itself is a consequence of deeper symmetries in electromagnetism, encapsulated in the language of transformation optics - with which we have both a descriptive tool to unify diverse electromagnetic configuarations, as well as a prescriptive tool to design media which bends light at will. While, such transformation medium and NRIM have been demonstrably realised using metamaterials, several challenges remain, of which loss is the major challenge. It is therefore under this trinity of concepts: metamaterials, negative refraction and transformation optics that this thesis is presented. In particular, this thesis illustrates the convergence of the later two concepts, giving rise to a novel class of perfect lens - the compact perfect lens. Here, we shall investigate, their unique properties, construction, challenges, and the dynamics of these lenses. In particular the formulation to study dynamics and effects of losses, is universal; applicable to lenses of any geometry. Finally we shall also propose an alternative universal, top-down approach to overcome losses in perfect lenses using phase conjugation, and demonstrate the capacity of such lenses to see through lossy, translucent obstacles.
Functional differences between type 1 and type 2 Epstein-Barr virus EBNA-2
Creators: name: Cancian, Laila
Publisher: name: Imperial College London
Year: 2011

description: Epstein-Barr virus (EBV) establishes a lifelong latent infection in the human host. In vitro EBV immortalises primary B lymphocytes giving rise to latently infected lymphoblastoid cell lines (LCLs). EBV strains are classified as type 1 or type 2 according to the sequence of the EBNA-2 gene, which expresses a transcription factor that induces viral and cell genes important for B cell proliferation. Type 1 EBV transforms primary B lymphocytes into LCLs much more efficiently than type 2 EBV, a difference previously mapped to the EBNA-2 locus. In this study, the greater transforming activity of type 1 EBV was found to correlate with a stronger and more rapid induction of the viral oncogene LMP-1 and the cell gene CXCR7 (which are both required for proliferation of EBV-LCLs) during infection of primary B cells with EBVBAC recombinant viruses. The enhanced ability of type 1 EBNA-2 to induce LMP-1 and CXCR7 genes was also confirmed in Burkitt’s Lymphoma cell lines. Although the major sequence differences between type 1 and type 2 EBNA-2 lie in N-terminal parts of the protein, the superior ability of type 1 EBNA-2 to sustain proliferation of EBV-LCLs is mostly determined by the C-terminal region of the protein. Substitution of the C-terminal third of type 1 EBNA-2 into the type 2 protein is sufficient to confer type 1 growth phenotype and type 1 expression levels of LMP-1 and CXCR7 in an EREB2.5 cell growth assay. Within this region, the RG, CR7 and TAD domains are the minimum type 1 sequences required. Sequencing the C-terminal part of EBNA-2 from additional EBV isolates showed high sequence identity within type 1 isolates or within type 2 isolates, indicating that the functional differences mapped are typical of EBV type sequences.
The Quaternionic Dirac Lagrangian
Creators: name: De Leo, Stefano
name: Rotelli, Pietro
Publisher: name: arXiv
Year: 1995
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We discuss the use of the variational principle within quaternionic quantum mechanics. This is non-trivial because of the non commutative nature of quaternions. We derive the Dirac Lagrangian density corresponding to the two-component Dirac equation. This Lagrangian is complex projected as anticipated in previous articles and this feature is necessary even for a classical real Lagrangian.
description: LaTex (9 pages)
title: AN, Registre des écrous du Châtelet, Y5266, f. p1010013
Creators: name: Claustre, Julie
name: Nationales, Archives
name: Archives Nationales
name: Claustre, Julie
name: ArchivesNationales/J.CLAUSTRE/H.REGAZZI/2020
Publisher: name: NAKALA - https://nakala.fr (Huma-Num - CNRS)
publisherIdentifier: https://ror.org/04ces3204
publisherIdentifierScheme: ROR
Year: 2020
Subjects: subject: registre
subject: LaMOP
subject: Laboratoire de Médiévistique Occidentale de Paris
subject: Châtelet

description: Registre des écrous du Châtelet, Archives Nationales, Y5266. Numérisation en mode image.
description: Bibliographic citation: Archives Nationales, Registre des écrous du Châtelet, Y5266, f. p1010013
D-branes and Strings as Non-commutative Solitons
Creators: name: Harvey, Jeffrey A.
name: Kraus, Per
name: Larsen, Finn
name: Martinec, Emil J.
Publisher: name: arXiv
Year: 2000
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: The non-commutative geometry of a large auxiliary $B$-field simplifies the construction of D-branes as solitons in open string field theory. Similarly, fundamental strings are constructed as localized flux tubes in the string field theory. Tensions are determined exactly using general properties of non-BPS branes, and the non-Abelian structure of gauge fields on coincident D-branes is recovered.
description: 31 pages, 2 figures, harvmac; v2: crucial sign error in vortex solution corrected, additional comments on electric flux tube, references added
Additional file 2 of Understanding the Sidewall Passivation Effects in AlGaInP/GaInP Micro-LED
Creators: name: Park, Juhyuk
name: Baek, Woojin
name: Geum, Dae-Myeong
name: Kim, Sanghyeon
Publisher: name: figshare
Year: 2022
Subjects: subject: Space Science
subject: Medicine
subject: Cell Biology
subject: Physiology
subject: FOS: Biological sciences
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: Sociology
subject: FOS: Sociology
subject: 69999 Biological Sciences not elsewhere classified
subject: Plant Biology

description: Additional file 2: Supplementary information for selection fitting parameter.
title: Электротехническое и конструкционное материаловедение
title: Учебник
titleType: Subtitle
Creators: name: Угольников А.В.
Publisher: name: Ай Пи Ар Медиа
Year: 2019

description: Учебник содержит теоретические сведения о свойствах электротехнических материалов (диэлектриков, магнитных материалов, проводников и полупроводников), широко используемых в производстве электротехнической и электронной аппаратуры; приведены основные показатели, посредством которых оцениваются эти свойства. Даны примеры материалов, способы и области их применения. Подготовлен с учетом требований Федерального государственного образовательного стандарта высшего образования. Предназначен для студентов очной и заочной форм обучения направления подготовки бакалавров 13.03.02 «Электроэнергетика и электротехника» и специальности 21.05.04 «Горное дело» (специализация «Электрификация и автоматизация горного производства»), изучающих дисциплину «Электротехническое и конструкционное материаловедение».
Cultural Resource Inventory, LSV Indian Springs, Las Vegas, Nevada 89124
Creators: name: Brunzell, David
Publisher: name: BCR Consulting, LLC
Year: 2018
Subjects: Clark (County)
United States of America (Country)
Las Vegas, Nevada
Nevada (State / Territory)
Nye (County)
Nellis Air Force Base, Nevada
26CK10441
26CK10440
Historic Roads
Lithic Scatter
Chipped Stone
Fire Cracked Rock
BLM Site No. 53-9321
BLM Site No. 56-9322
BLM Site No. 53-9450
Systematic Survey

description: BCR Consulting LLC (BCR Consulting) under contract to Ace Environmental LLC completed a Cultural Resources Inventory of the LSV Indian Springs Project (project) located at Creech Air Force Base (CAFB) and on Bureau of Land Management land (BLM) in Clark County, Nevada. Proposed project activities will include installation of permanent power at an existing communications site, and installation of underground, overhead, and above-ground utility lines to an existing telecommunications site. The activities that will occur within these alignments and easements comprise the Area of Potential Effect (APE) for direct effects, or direct APE. An indirect APE has also been established for a 3.5-mile radius surrounding the APE for direct effects. A cultural resources literature review and background research, and intensive-level pedestrian field survey were conducted for the project. The literature review and background research included the direct APE, plus a one-mile radius for prehistoric and historic-period archaeological sites, and for historic-period architectural resources. A 3.5- mile radius (the indirect APE) was included in an analysis of indirect effects to cultural resources.
Brane Tilings, M2-branes and Orbifolds
Creators: name: Davey, John Paul
Publisher: name: Imperial College London
Year: 2011

description: Brane Tilings represent one of the largest classes of superconformal theories with known gravity duals in 3+1 and also 2+1 dimensions. They provide a useful link between a large class of quiver gauge theories and their moduli spaces, which are the toric Calabi-Yau (CY) singularities. This thesis includes a discussion of an algorithm that can be used to generate all brane tilings with any given number of superpotential terms. All tilings with at most 8 superpotential terms have been generated using an implementation of this method. Orbifolds are a subject of central importance in string theory. It is widely known that there may be two or more orbifolds of a space by a finite group. Abelian Calabi-Yau orbifolds of the form C³/Γ can be counted according to the size of the group |Γ|. Three methods of counting these orbifolds will be given. A brane tiling together with a set of Chern Simons levels is sufficient to define a quiver Chern-Simons theory which describes the worldvolume theory of the M2-brane probe. A forward algorithm exists which allows us to easily compute the toric data associated to the moduli space of the quiver Chern-Simons theory from knowledge of the tiling and Chern-Simons levels. This forward algorithm will be discussed and illustrated with a few examples. It is possible that two different Chern-Simons theories have the same moduli-space. This effect, sometimes known as 'toric duality' will be described further. We will explore how two Chern-Simons theories (corresponding to brane tilings) can be related to each other by the Higgs mechanism and how brane tilings (with CS levels) that correspond to 14 fano 3-folds have been constructed. The idea of 'child' and 'parent' brane tilings will be introduced and we will discuss how it has been possible to count 'children' using the symmetry of the 'parent' tiling.
Topological supergravity structure of non-critical superstring theories
Creators: name: Ramallo, A. V.
name: Roy, S.
name: de Santos, J. M. Sanchez
Publisher: name: arXiv
Year: 1995
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We obtain a bosonization prescription that allows to represent the energy-momentum tensor and supersymmetry generators of non-critical superstring theories with minimal matter as those of topological supergravity. Superstrings with $N=1$ and $N=2$ world-sheet supersymmetry are considered. The topological symmetry associated with the topological supergravity representation is studied. It is shown, in particular, that the compatibility of this topological structure with the supersymmetry enhances the superconformal symmetry of the models concerned.
description: 15 pages, phyzzx, no figures
T cell function in the blood and gastrointestinal mucosa in HIV-1 infection
Creators: name: Kaltsidis, Charalampos
Publisher: name: Imperial College London
Year: 2011

description: Despite many efforts, HIV-1 infection remains a global health problem; an effective vaccine would provide the best chance of controlling the pandemic. Recently, HIV vaccine research has been focusing on the gut mucosal immune system and early immunological events, which may set the stage for the later appearance of clinical immunodeficiency. This thesis describes a method to obtain mucosal tissue, isolate mucosal mononuclear cells (MMC) and study degranulation and intracellular cytokine memory responses using polychromatic flow cytometry. Consistent and reproducible data were generated by adhering to validated Standard Operating Protocols (SOPs). Qualification of such methods is essential for use in vaccine clinical trials. Differences between the magnitude of single CD8 cytokine and degranulation responses between blood and gut were seen; however, the quality of T cell responses at the single cell level was remarkably similar in both compartments. Differences between small bowel and colon were also described and introduce another layer of complexity in the interpretation of mucosal responses to HIV-1. Differences in memory phenotypes and function between blood and gut, in addition to small and large bowel allow for better characterization of the cytotoxic potential of CD8+ and CD4+ T cells against HIV-1 infected cell targets. Finally, a significant positive correlation between IFNγ and degranulation responses were seen with the frequencies of central memory and granzyme B-containing CD8+ in the mucosa, but not in the blood. A better understanding of memory responses and cytotoxic potential against HIV-1 targets will be important in vaccine research; it may also help reshaping the current practice of empirically and unselectively fast-tracking potential immunogens to large-scale trials.