cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
On (b,c)-system at finite temperature in thermo field approach
Creators: name: Abdalla, M. C. B.
name: Gadelha, A. L.
name: Vancea, I. V.
Publisher: name: arXiv
Year: 2000
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We construct the finite temperature field theory of the two-dimensional ghost-antighost system within the framework of thermo field theory.
description: 8 pages; v2. reference added, typos corrected
Protein separation using surfactant precipitation
Creators: name: Cheng, Shu Ian
Publisher: name: Imperial College London
Year: 2012

description: Surfactant precipitation applied as a surfactant mediated protein purification technique has considerable potential in protein extraction, and therefore the understanding of the interactions involved and the folding behaviour in the precipitated protein was the first aim of this thesis. The key system parameters such as buffer salt concentration, molar ratio of surfactant to protein and pH which determines the protein stability in protein-surfactant complex formation were evaluated. The surfactant:protein ratio determines saturation of protein binding sites while pH determines the strength of affinity for ionic binding which influences hydrophobic binding with surfactant monomers causing the protein to lose its conformation. The protein-surfactant binding varied for lysozyme, cytochrome c and ribonuclease A with trypsin and α -chymotrypsin, and hence the denaturation profile. In the second aim, protein recovery from surfactant precipitation was enhanced by improving the solvent recovery method and, implementing a new and novel counterionic surfactant recovery method. The effect of a variety of recovery phases and solution conditions on lysozyme recovery was analysed in terms of their ability in maintaining protein stability, recovery yield, and activity. It was found that solvent recovery was limited by solvent polarity and protein solubility, and that the cationic surfactant, trioctylmethylammonium chloride (TOMAC), used to form nonpolar ion pairs with sodium bis-(2-ethylhexyl) sulfosuccinate (AOT) was the most efficient method for recovering protein. The third aim was to assess the influence of protein properties, such as charge and hydrophobicity, on protein separation. The selective extraction of a target protein from mixtures of proteins in both buffer and fermentation broth was investigated. It appears that the optimum surfactant:protein molar ratio for the extraction of the proteins from fermentation broth (lysozyme, cytochrome c and ribonuclease A; 16, 17 and 22 respectively) were similar to those in a buffer system. Lysozyme and ribonuclease A were selectively separated from a binary mixture. The extraction behaviour was well represented by surface charge distribution which is indifferent to system conditions. However, certain broth constituents induced the formation of some unfolded irreversible non-dissolvable precipitate in the recovery process. Finally, the use of non-ionic surfactants, ionic/non-ionic mixed surfactants, and cationic surfactants were investigated in surfactant precipitation system. Non-ionic surfactant does not support direct precipitation of proteins using surfactant or recovery of protein from a protein-surfactant complex, and has no effect in a mixed ionic/non-ionic system. The application of cationic surfactant precipitation to separate trypsin inhibitor was attempted, and good recovery was obtained.
Development and characterization of transparent glass matrix composites
Creators: name: Pang, Bo
Publisher: name: Imperial College London
Year: 2011

description: Glass matrix composites based on NextelTM alumina fibre reinforced borosilicate glass have been fabricated to improve their mechanical property and fracture toughness. In this work, a novel processing technique, which is called “sandwich” hot-pressing, has been used. It consists of arranging the reinforcing fibres in two directions with a periodic interspacing between glass slides, and submitting the material to a heat-treatment for consolidation into highly dense and transparent composites, which were proved by XRD analysis and SEM observations. These composites’ mechanical, optical and microstructural properties were studied and compared to those of the unidirectional fibre reinforced borosilicate glass composite and unreinforced glass matrix produced under the same conditions. Furthermore, a hybrid sol-gel technique has been employed for coating the fibres with a smooth and crack free ZrO2 interfacial layer to provide a weak bonding at the fibre/matrix interface to promote fibre pull-out during fracture. ZrO2 coated and uncoated fibre-reinforced borosilicate glass matrix composites were fabricated, with different sizes of optical windows including 4x4, 5x5 and 6x6 cm2. Moreover, a geometry based equation was derived to evaluate the expected light transmittance of the composites. These multi-directional fibre reinforced glass matrix composites retained at least 50% of the light transmittance and higher flexural strength compared with the unreinforced glass matrix. The highest measured flexural strength value of these composites was 56 ± 7 MPa. The composites reinforced by ZrO2 coated fibres had higher flexural strength (approx. 36%) and lower standard deviation (approx. 47%) compared with those reinforced by uncoated fibres. The introduction of a ZrO2 interfacial layer was to improve the mechanical properties and to retain the composites’ integrity, which was proved by the observations of fibre pull-out and crack deflection upon failure during mechanical tests. To investigate the microstructure of the interfacial layer in the composite, SEM, FIB-SIMS and TEM were employed. The present composites show potential for applications in architecture and special machinery requiring strong transparent windows.
Neural Cross-Lingual Coreference Resolution and its Application to Entity Linking
Creators: name: Kundu, Gourab
name: Sil, Avirup
name: Florian, Radu
name: Hamza, Wael
Publisher: name: arXiv
Year: 2018
Subjects: subject: Computation and Language (cs.CL)
subject: FOS: Computer and information sciences

description: We propose an entity-centric neural cross-lingual coreference model that builds on multi-lingual embeddings and language-independent features. We perform both intrinsic and extrinsic evaluations of our model. In the intrinsic evaluation, we show that our model, when trained on English and tested on Chinese and Spanish, achieves competitive results to the models trained directly on Chinese and Spanish respectively. In the extrinsic evaluation, we show that our English model helps achieve superior entity linking accuracy on Chinese and Spanish test sets than the top 2015 TAC system without using any annotated data from Chinese or Spanish.
Exact FLRW cosmological solutions via invariants of the symmetry groups
Creators: name: Ahmadi-Azar, E.
name: Atazadeh, K.
name: Eghbali, A.
Publisher: name: arXiv
Year: 2023
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: Until now, various methods have been demonstrated to solve the Friedmann-Lama\'ıtre-Robertson-Walker (FLRW) equations in the spatially flat $(k=0)$ cosmological model. In this study, in order to solve the field equations of the spatially flat FLRW cosmological model in the presence of $Λ$, a new method based on the invariants of the symmetry groups which we called ISG-method, is presented. This method is based on the extended Prelle-Singer (PS) method and it uses the Lie point symmetry, $λ$-symmetry and Darboux polynomials (DPs). We employ this method to extract systematically the two independent first integrals (or invariants) such as $I_1 (a,\dot{a})=c_1$ and $I_2 (t,a,\dot{a})=c_2$ associated to the group of the Lie point transformations keeping the Friedmann-Einstein dynamical equation (DE), $\ddot{a}=ϕ(t,a,\dot{a})$, invariant. The obtained solutions from solving the DEs of the FLRW cosmological model by the ISG-method are explicitly written, so that they are suitable for cosmological applications. Finally, as an application of the solutions we look at the age of universe in the presence of cosmological constant where the dominant matter of the universe is considered to be fluid with the state parameter $w$. In this regard, we calculate the age of universe when the dominant matter is dust.
description: 34 pages, 1 figure, 2 tables
Institute of Archaeology and Anthropology, University of South Carolina Site Survey Record 38BK1709
Creators: name: Fernandez, Rachel
Publisher: name: South Carolina Institute of Archaeology and Anthropology
Year: 1995
Subjects: North Air Force Auxiliary Field
Berkeley (County)
Charleston (County)
Orangeburg (County)
South Carolina (State / Territory)
Joint Base Charleston
18th Century
Prehistoric
38BK1709
House
Brick
Ceramic
Chipped Stone
Glass
Site Survey Records
Site Form
Archaeological Overview
Reconnaissance / Survey
Heritage Management
Systematic Survey

description: This document is a site form for site 38BK1709 recorded by the University of South Carolina.
Structural basis of HCoV-19 fusion core and an effective inhibition peptide against virus entry
Creators: name: Sun, Huan
name: Li, Yan
name: Liu, Peipei
name: Qiao, Chengpeng
name: Wang, Xiaomin
name: Wu, Lianao
name: Liu, Kefang
name: Hu, Yu
name: Su, Chao
name: Tan, Shuguang
name: Zou, Shumei
name: Wu, Guizhen
name: Yan, Jinghua
name: Gao, George Fu
name: Qi, Jianxun
name: Wang, Qihui
Publisher: name: Taylor & Francis
Year: 2020
Subjects: subject: Biochemistry
subject: Medicine
subject: Pharmacology
subject: Biotechnology
subject: Chemical Sciences not elsewhere classified
subject: Ecology
subject: FOS: Biological sciences
subject: Sociology
subject: FOS: Sociology
subject: Biological Sciences not elsewhere classified
subject: Infectious Diseases
subject: FOS: Health sciences
subject: Virology

description: Structural basis of HCoV-19 fusion core and an effective inhibition peptide against virus entry
Numerical simulation of gliding reflection of X-ray beam from rough surface
Creators: name: Bobrova, T. A.
name: Ognev, L. I.
Publisher: name: arXiv
Year: 1998
Subjects: subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: A new method for investigation of x-ray propagation in a rough narrow dielectric waveguide is proposed on the basis of the numerical integration of the quazioptical equation. In calculations a model rough surface was used with the given statistical properties. It was shown that the losses in the narrow waveguides strongly depend on the wall roughness and on the input angle. The losses are not zero even at zero input angle if the width of the waveguide is smaller or about 1 mkm. The effect is accounted for as the influence of diffraction. The angular spread of the transmitted X-ray radiation is much more narrow than the Fresnel angle of the total external reflection.
description: 9 pages, 11 figures, LaTeX + figures
Oral history interview with Hope, 1980
Publisher: name: Columbia University
Year: 2020
Subjects: Drug addicts--United States
Drug traffic--History--20th century.--United States
Drug control--History--20th century.--United States
Drug abuse--History--20th century.--United States
Opium abuse--History--20th century.--United States
Heroin abuse--History--20th century.--United States
Drugs--Prescribing
Mafia--United States
Jewish criminals--New York (State)
Crime--New York (State)
Organized crime--History--20th century.--United States

description: In this interview, Hope discusses her life in New York, with special attention towards her drug use. She describes her introduction to opium use and her eventual transition to heroin. She describes how the increasing price of drugs served as an incentive for addicts to begin dealing drugs in lieu of their legitimate jobs, because they could no longer afford to maintain their drug use on their salaries. She discusses the different groups which played key roles in the drug scene in New York in the early to mid 20th century including the Italian Mafia and Jewish crime syndicates. She compares her observations of addicts pre and post World War II. Hope also explains how many businesses in the Lower East Side such as bars, restaurants, and candy stores served as fronts for drug commerce in the early 20th century. She discusses the business aspects of the drug trade in great detail. She also describes aspects of drug enforcement, her own incarceration, and obtaining prescription drugs
An elegant solution of the n-body Toda problem
Creators: name: Anderson, Arlen
Publisher: name: arXiv
Year: 1995
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: The solution of the classical open-chain n-body Toda problem is derived from an ansatz and is found to have a highly symmetric form. The proof requires an unusual identity involving Vandermonde determinants. The explicit transformation to action-angle variables is exhibited.
description: LaTeX, 13 pp
Data-driven multivariate and multiscale methods for brain computer interface
Creators: name: Park, Cheolsoo
Publisher: name: Imperial College London
Year: 2011

description: This thesis focuses on the development of data-driven multivariate and multiscale methods for brain computer interface (BCI) systems. The electroencephalogram (EEG), the most convenient means to measure neurophysiological activity due to its noninvasive nature, is mainly considered. The nonlinearity and nonstationarity inherent in EEG and its multichannel recording nature require a new set of data-driven multivariate techniques to estimate more accurately features for enhanced BCI operation. Also, a long term goal is to enable an alternative EEG recording strategy for achieving long-term and portable monitoring. Empirical mode decomposition (EMD) and local mean decomposition (LMD), fully data-driven adaptive tools, are considered to decompose the nonlinear and nonstationary EEG signal into a set of components which are highly localised in time and frequency. It is shown that the complex and multivariate extensions of EMD, which can exploit common oscillatory modes within multivariate (multichannel) data, can be used to accurately estimate and compare the amplitude and phase information among multiple sources, a key for the feature extraction of BCI system. A complex extension of local mean decomposition is also introduced and its operation is illustrated on two channel neuronal spike streams. Common spatial pattern (CSP), a standard feature extraction technique for BCI application, is also extended to complex domain using the augmented complex statistics. Depending on the circularity/noncircularity of a complex signal, one of the complex CSP algorithms can be chosen to produce the best classification performance between two different EEG classes. Using these complex and multivariate algorithms, two cognitive brain studies are investigated for more natural and intuitive design of advanced BCI systems. Firstly, a Yarbus-style auditory selective attention experiment is introduced to measure the user attention to a sound source among a mixture of sound stimuli, which is aimed at improving the usefulness of hearing instruments such as hearing aid. Secondly, emotion experiments elicited by taste and taste recall are examined to determine the pleasure and displeasure of a food for the implementation of affective computing. The separation between two emotional responses is examined using real and complex-valued common spatial pattern methods. Finally, we introduce a novel approach to brain monitoring based on EEG recordings from within the ear canal, embedded on a custom made hearing aid earplug. The new platform promises the possibility of both short- and long-term continuous use for standard brain monitoring and interfacing applications.
Search for an exotic decay of the Higgs boson into a Z boson and a pseudoscalar particle in proton-proton collisions at $\sqrt{s}$ = 13 TeV
Creators: name: CMS Collaboration
Publisher: name: arXiv
Year: 2023
Subjects: subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: A search for an exotic decay of the Higgs boson to a Z boson and a light pseudoscalar particle (a), decaying to a pair of leptons and a pair of photons, respectively, is presented. The search is based on proton-proton collision data at a center-of-mass energy of $\sqrt{s}$ = 13 TeV, collected with the CMS detector and corresponding to an integrated luminosity of 138 fb$^{-1}$. The analysis probes pseudoscalar masses $m_\mathrm{a}$ between 1 and 30 GeV, leading to two pairs of well-isolated leptons and photons. Upper limits at 95% confidence level are set on the Higgs boson production cross section times its branching fraction to two leptons and two photons. The observed (expected) limits are in the range of 1.1-17.8 (1.7-17.9) fb within the probed $m_\mathrm{a}$ interval. An excess of data above the expected standard model background with a local (global) significance of 2.6 (1.3) standard deviations is observed for a mass hypothesis of $m_\mathrm{a}$ = 3 GeV. Limits on models involving axion-like particles, formulated as an effective field theory, are also reported.
description: Replaced with the published version. Added the journal reference and the DOI. All the figures and tables, including additional supplementary figures, can be found at http://cms-results.web.cern.ch/cms-results/public-results/publications/HIG-22-003 (CMS Public Pages)
MOESM1 of Rising plasminogen activator inhibitor-1 and hypoadiponectinemia characterize the cardiometabolic biomarker profile of women with recent gestational diabetes
Creators: name: Mehmood, Sadia
name: Ye, Chang
name: Connelly, Philip
name: Hanley, Anthony
name: Zinman, Bernard
name: Retnakaran, Ravi
Publisher: name: figshare
Year: 2018
Subjects: subject: Biochemistry
subject: Medicine
subject: Neuroscience
subject: Physiology
subject: FOS: Biological sciences
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: Sociology
subject: FOS: Sociology
subject: Cancer

description: Additional file 1. Multiple linear regression of (dependent variable) change in PAI-1 from 1- to 3-years adjusted for age, ethnicity, family history of diabetes, BMI at 1-year, duration of breastfeeding, glucose intolerance at 1-year, previous gestational glucose tolerance status, and the concurrent change in fasting insulin (Panel A) or triglycerides (Panel B).
Monopole and instanton effects in QCD
Creators: name: Hasegawa, Masayasu
Publisher: name: arXiv
Year: 2018
Subjects: subject: High Energy Physics - Lattice (hep-lat)
subject: High Energy Physics - Experiment (hep-ex)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We aim to show the effects of the magnetic monopoles and instantons in quantum chromodynamics (QCD) on observables; therefore, we introduce a monopole and anti-monopole pair in the QCD vacuum of a quenched SU(3) by applying the monopole creation operator to the vacuum. We calculate the eigenvalues and eigenvectors of the overlap Dirac operator that preserves the exact chiral symmetry in lattice gauge theory using these QCD vacua. We then investigate the effects of magnetic monopoles and instantons. First, we confirm the monopole effects as follows: (i) The monopole creation operator makes the monopoles and anti-monopoles in the QCD vacuum. (ii) A monopole and anti-monopole pair creates an instanton or anti-instanton without changing the structure of the QCD vacuum. (iii) The monopole and anti-monopole pairs change only the scale of the spectrum distribution without affecting the spectra of the Dirac operator by comparing the spectra with random matrix theory. Next, we find the instanton effects by increasing the number density of the instantons and anti-instantons as follows: (iv) The decay constants of the pseudoscalar increase. (v) The values of the chiral condensate, which are defined as negative numbers, decrease. (vi) The light quarks and the pseudoscalar mesons become heavy. The catalytic effect on the charged pion is estimated using the numerical results of the pion decay constant and the pion mass. (vii) The decay width of the charged pion becomes wider than the experimental result, and the lifetime of the charged pion becomes shorter than the experimental result. These are the effects of the monopoles and instantons in QCD.
description: 58 pages, 26 figures, and 28 tables
Oral history interview with Hope Jensen Leichter 1984
Publisher: name: Columbia University
Year: 2019
Subjects: Women college teachers
Educators
Families--Research
Educational sociology
Television and families
Federal aid to education

description: Education; Harvard Sociology Department, 1950s; family background; early research work, Russell Sage Foundation; kinship studies; career in education; research under Spencer Foundation: social networks and educative style, applications; Elbenwood Center: establishment, Spencer influence in development, philosophy, recent research, contributions to education; National Institute of Education, government funded research; "Mediation of Television by the Family" study; changes in structure and definition of family; future courses of Elbenwood Center.
Spectroscopic and imaging observations of small-scale reconnection events
Creators: name: Li, Dong
name: Li, Leping
name: Ning, Zongjun
Publisher: name: arXiv
Year: 2018
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: We present spectroscopic and imaging observations of small-scale reconnection events on the Sun. Using the Interface Region Imaging Spectrograph (IRIS) observations, one reconnection event is first detected as IRIS jets with fast bi-directional velocities in the chromosphere and transition region, which are identified as non-Gaussian broadenings with two extended wings in the line profiles of Si iv, C ii, and Mg ii k. The magnetograms under the IRIS jets from Helioseismic and Magnetic Images exhibit magnetic flux cancellation simultaneously, supporting that the IRIS jets are driven by magnetic reconnection. The Atmospheric Imaging Assembly images also show an extreme ultraviolet (EUV) brightening which is shortly after the underlying IRIS jets, i.e., in the 131 A, 171 A, 193 A, 211 A, and 94 A channels, implying that the over-lying EUV brightening in the corona is caused by the IRIS jets in the chromosphere and transition region. We also find another three reconnection events which show the same features during this IRIS observation. Our observational results suggest that the small-scale reconnection events might contribute to the coronal heating. The new result is that the process of magnetic reconnection is detected from the photosphere through chromosphere and transition region to the corona.
description: 8 pages, accepted for publication in MNRAS
T-duality Covariance of SuperD-branes
Creators: name: Kamimura, Kiyoshi
name: Simon, Joan
Publisher: name: arXiv
Year: 2000
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: T-duality realized on SuperD-brane effective actions probing in constant $G_{mn}$ and $b_{mn}$ backgrounds is studied from a pure world volume point of view. It is proved that requiring {\em T-duality covariance} of such actions ``fixes'' the T-duality transformations of the world volume dynamical fields, and consequently, of the NS-NS and R-R coupling superfields. The analysis is extended to uncover the mapping of the symmetry structure associated with these SuperD-brane actions. In particular, we determine the T-duality transformation properties of kappa symmetry and supersymmetry, which allow us to prove that bosonic supersymmetric world volume solitons of the original theory generate, through T-duality, the expected ones in the T-dual theory. The latter proof is generalized to arbitrary bosonic backgrounds. We conclude with some comments on extensions of our approach to arbitrary kappa symmetric backgrounds, non-BPS D-branes and non-abelian SuperD-branes.
description: 36 pages, no figures, LaTex file; vs2 minor changes, conclucions unchanged, two references added. Final version to appear in Nucl. Phys. B
The Application of Multi-dimensional Fluorescence Imaging to Microfluidic Systems
Creators: name: Robinson, Tom
Publisher: name: Imperial College London
Year: 2011

description: This thesis describes the application of multidimensional fluorescence imaging to microfluidic systems. The work focuses on time- and polarisation-resolved fluorescence microscopy to extract information from microchannel environments. The methods are applied to polymerase chain reaction (PCR) and a DNA repair enzyme, uracil DNA glycosylase (UDG). The fluorescence lifetimes Rhodamine B are calibrated over a thermal gradient using time correlated single photon counting. The dye is then introduced in solution into a novel microfluidic PCR device. Fluorescence lifetime imaging microscopy (FLIM) is then performed, and using the calibration curve, the temperature distributions are accurately determined. The device is subsequently optimised for efficient DNA amplification. A line-scanning FLIM microscope is used to characterise a rapid microfluidic mixer via a fluorescence quenching experiment. Fluorescein and sodium iodide are mixed in a continuous flow format and imaged in 3-D. The spatial distributions of the fluorescence lifetimes are converted to the concentrations of sodium iodide to quantify mixing. Computational fluid dynamic (CFD) simulations are validated by comparison to the quantitative concentrations obtained experimentally. The binding reaction between UDG and a hexachlorofluorescein (HEX) labelled DNA strand is characterised spectrally. As well as an increase in fluorescence polarisation anisotropy, a 700 ps increase in the fluorescence lifetime is measured. Confocal microscopy shows the same spectral properties when the reaction is performed in both simple and rapid microfluidic mixers. In the latter experiment, a concentration series allows the determination of kinetics, which agree with conventional stopped-flow data. A two-colour two-photon (2c2p) FLIM microscope is developed and applied to the UDG-DNA system. An oligonucleotide containing 2-aminopurine, a reporter of DNA base flipping, and HEX is mixed with UDG in a microfluidic Y-mixer. The 2c2p excitation allows FLIM of both fluorophores and hence detection of binding and base flipping. Comparison to CFD with known kinetic rate constants confirms the experimental observations.
Stress-stress fluctuation formula for elastic constants in the NPT ensemble
Creators: name: Lips, Dominik
name: Maass, Philipp
Publisher: name: arXiv
Year: 2018
Subjects: subject: Computational Physics (physics.comp-ph)
subject: Soft Condensed Matter (cond-mat.soft)
subject: FOS: Physical sciences

description: Several fluctuation formulas are available for calculating elastic constants from equilibrium correlation functions in computer simulations, but the ones available for simulations at constant pressure exhibit slow convergence properties and cannot be used for the determination of local elastic constants. To overcome these drawbacks, we derive a stress-stress fluctuation formula in the $NPT$ ensemble based on known expressions in the $NVT$ ensemble. We validate the formula in the $NPT$ ensemble by calculating elastic constants for the simple nearest-neighbor Lennard-Jones crystal and by comparing the results with those obtained in the $NVT$ ensemble. For both local and bulk elastic constants we find an excellent agreement between the simulated data in the two ensembles. To demonstrate the usefulness of the new formula, we apply it to determine the elastic constants of a simulated lipid bilayer.
description: 10 pages, 4 figures
Institute of Archaeology and Anthropology, University of South Carolina Site Survey Record 38BK1712
Creators: name: Fernandez, Rachel
Publisher: name: South Carolina Institute of Archaeology and Anthropology
Year: 1995
Subjects: North Air Force Auxiliary Field
Berkeley (County)
Charleston (County)
Orangeburg (County)
South Carolina (State / Territory)
Joint Base Charleston
Pre-Contact Period
Prehistoric
Woodland
Middle Woodland
Mississippian
38BK1712
Artifact Scatter
Shell
Ceramic
Chipped Stone
Fauna
Site Survey Records
Site Form
Archaeological Overview
Reconnaissance / Survey
Heritage Management
Systematic Survey

description: This document is a site form for site 38BK1712 recorded by the University of South Carolina.
Controlling the polarization of nitrogen ion lasing
Creators: name: Gao, Jingsong
name: Zhang, Xiang
name: Wang, Yang
name: Dong, Jiahao
name: Lei, Mingwei
name: Liu, Yi
name: Wu, Chengyin
name: Gong, Qihuang
name: Jiang, Hongbing
Publisher: name: arXiv
Year: 2023
Subjects: subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: Air lasing provides a promising technique to remotely produce coherent radiation in the atmosphere and attracts continuous attention. However, the polarization properties of N2+ lasing with seeding has not been understood since it was discovered ten years ago, in which the behaviors appear disordered and confusing. Here, we performed an experimental and theoretical investigation on the polarization properties of N2+ lasing and successfully revealed its underlying physical mechanism. We found that the optical gain is anisotropic owing to the permanent alignment of N2+ induced by the preferential ionization of the pump light. As a result, the polarization of N2+ lasing tends to align with that of the pump light after amplification, which becomes more pronounced with increasing amplification factor. Based on the permanent alignment of N2+, we built a theoretical model that analytically interpreted and numerically reproduced the experimental observations, which points out the key factors for controlling the polarization of N2+ lasing.
description: 12 pages, 4 figures
Institute of Archaeology and Anthropology, University of South Carolina Site Survey Record 38BK1714
Creators: name: Fernandez, Rachel
Publisher: name: South Carolina Institute of Archaeology and Anthropology
Year: 1994
Subjects: North Air Force Auxiliary Field
Berkeley (County)
Charleston (County)
Orangeburg (County)
South Carolina (State / Territory)
Joint Base Charleston
Post Contact
Pre-Contact
18th - 19th Century
Late Woodland
Mississippian
38BK1714
House
Shell
Ceramic
Fauna
Glass
Nail
Site Survey Records
Site Form
Archaeological Overview
Reconnaissance / Survey
Heritage Management
Systematic Survey

description: This document is a site form for site 38BK1714 recorded by the University of South Carolina.
title: ADCO, Cartulaire de Cîteaux pour les domaines de Beaune (XVe siècle), Cart. 177 (11 H 289), 197 folios, f. 0262
Creators: name: de la Côte d'Or, Archives départementales
name: Archives Départementales De La Côte-D'Or
name: Petot, Frédérique
name: Projet CBMA
name: CG21/F.PETOT/2015
Publisher: name: NAKALA - https://nakala.fr (Huma-Num - CNRS)
publisherIdentifier: https://ror.org/04ces3204
publisherIdentifierScheme: ROR
Year: 2020
Subjects: subject: Corpus Burgundiae Medii Aevi
subject: Chartes de la Bourgogne du Moyen Âge
subject: cartulaire
subject: LaMOP
subject: Laboratoire de Médiévistique Occidentale de Paris

description: Cartulaire de Cîteaux pour les domaines de Beaune (XVe siècle), Archives départementales de la Côte-d'Or, Cart. 177 (11 H 289), 197 folios, f. 0262, Numérisation en mode image.
description: Relation: http://www.cbma-project.eu/
description: Bibliographic citation: Cartulaire de Cîteaux pour les possessions d’Izeure (XVe siècle), Archives départementales de la Côte-d'Or, Cart. 177 (11 H 289), 197 folios, f. 0262, in Projet CBMA - Corpus Burgundiae Medii Aevi [Ressource en ligne], https:// manuscrits.cbma-project.eu/
description: Provenance: https://www.geonames.org/3024876
description: Provenance: http://www.idref.fr/030974844/id
description: Provenance: https://catalogue.bnf.fr/ark:/12148/cb12228351v
description: Provenance: abbaye de Cîteaux
description: Provenance: http://www.wikidata.org/entity/Q843261
Sliding Blocks Revisited: A simulational Study
Creators: name: de Lima, A. R.
name: Moukarzel, C.
name: Penna, T. J. P.
Publisher: name: arXiv
Year: 1998
Subjects: subject: Classical Physics (physics.class-ph)
subject: Computational Physics (physics.comp-ph)
subject: FOS: Physical sciences

description: A computational study of sliding blocks on inclined surfaces is presented. Assuming that the friction coefficient $μ$ is a function of position, the probability $P(λ)$ for the block to slide down over a length $λ$ is numerically calculated. Our results are consistent with recent experimental data suggesting a power-law distribution of events over a wide range of displacements when the chute angle is close to the critical one, and suggest that the variation of $μ$ along the surface is responsible for this.
description: 6 pages, 4 figures. submitted to Int. J. Mod. Phys. (Proc. Brazilian Wokshop on Simulational Physics)
Custodial symmetry violation in the Georgi-Machacek model
Creators: name: Keeshan, Ben
name: Logan, Heather E.
name: Pilkington, Terry
Publisher: name: arXiv
Year: 2018
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We study the effects of custodial symmetry violation in the Georgi-Machacek (GM) model. The GM model adds isospin-triplet scalars to the Standard Model in a way that preserves custodial symmetry at tree level; however, this custodial symmetry has long been known to be violated at the one-loop level by hypercharge interactions. We consider the custodial-symmetric GM model to arise at some high scale as a result of an unspecified ultraviolet completion, and quantify the custodial symmetry violation induced as the model is run down to the weak scale. The measured value of the eletroweak rho parameter (along with unitarity considerations) lets us constrain the scale of the ultraviolet completion to lie below tens to hundreds of TeV. Subject to this constraint, we quantify the size of other custodial-symmetry-violating effects at the weak scale, including custodial symmetry violation in the couplings of the 125 GeV Higgs boson to W and Z boson pairs and mixings and mass splittings among the additional Higgs bosons in the theory. We find that these effects are small enough that they are unlikely to be probed by the Large Hadron Collider, but may be detectable at a future $e^+e^-$ collider.
description: 28 pages, 9 figures, v2: 18 figures, new appendix,comments and parameter scans added, v2 accepted for publication in PRD, v3: Typos fixed
Solving non-perturbative flow equations
Creators: name: Adams, J.
name: Berges, J.
name: Bornholdt, S.
name: Freire, F.
name: Tetradis, N.
name: Wetterich, C.
Publisher: name: arXiv
Year: 1995
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: Non-perturbative exact flow equations describe the scale dependence of the effective average action. We present a numerical solution for an approximate form of the flow equation for the potential in a three-dimensional N-component scalar field theory. The critical behaviour, with associated critical exponents, can be inferred with good accuracy.
description: Latex, 14 pages, 2 uuencoded figures
Role of Epigenetics in the Decidualization of Human Endometrial Stromal Cells
Creators: name: Grimaldi, Giulia
Publisher: name: Imperial College London
Year: 2011

description: Differentiation of human endometrial stromal cells (HESCs) into decidual cells represents a highly coordinated process essential for embryo implantation. Following the post ovulatory rise in progesterone levels HESCs undergo biochemical and morphological transformations in a process known as decidualization. These radical changes led us to investigate the extent to which chromatin modifying proteins are themselves regulated. Manual mining of microarray data revealed that over 100 epigenetic effectors are regulated upon three days of decidualization and among these is the histone methyltransferase EZH2. ChIP on chip analysis showed that downregulation of this enzyme in decidual cells in response to differentiation cues results in a genome-wide redistribution of trimethylation of lysine 27 on histone 3 (H3K27). Loss of this repressive histone mark at specific promoters is associated with acquisition of the competitive activation mark, H3K27 acetylation. Furthermore, functional studies indicated that EZH2 inhibits the decidual response. Histone methyltransferases are not the only methyltransferases that are regulated upon decidualization. Expression of DNA methyltransferases also responds to differentiation cues. However, this is not accompanied by equal changes in global DNA methylation levels, as emerged from colorimetric assays and pyrosequencing, nor in a change in the methylation status of the promoter of IGFBP-1, a decidual marker gene. Numerous diseases are associated with aberrant epigenomes; here we compare, through MeDIP-seq, the methylome of women with and without recurrent pregnancy loss. From our preliminary analysis, no significant differences in DNA methylation were observed. Taken together this work highlights the fundamental role epigenetics plays in the progression of the menstrual cycle.
Nonadiabatic Quantum Dynamics with Frozen-Width Gaussians
Creators: name: Joubert-Doriol, Loïc
name: Izmaylov, Artur F.
Publisher: name: arXiv
Year: 2018
Subjects: subject: Chemical Physics (physics.chem-ph)
subject: FOS: Physical sciences

description: We review techniques for simulating fully quantum nonadiabatic dynamics using the frozen-width moving Gaussian basis functions to represent the nuclear wavefunction. A choice of these basis functions is primarily motivated by the idea of the on-the-fly dynamics that will involve electronic structure calculations done locally in the vicinity of each Gaussian center and thus avoiding the "curse of dimensionality" appearing in large systems. For quantum dynamics involving multiple electronic states there are several aspects that need to be addressed. First, the choice of the electronic state representation is one of most defining in terms of formulation of resulting equations of motion. We will discuss pros and cons of the standard adiabatic and diabatic representations as well as the relatively new moving crude adiabatic representation. Second, if the number of electronic states can be fixed throughout the dynamics, the situation is different for the number of Gaussians needed for an accurate expansion of the total wavefunction. The latter increases its complexity along the course of the dynamics and a protocol extending the number of Gaussians is needed. We will consider two common approaches for the extension: 1) spawning and 2) cloning. Third, equations of motion for individual Gaussians can be chosen in different ways, implications for the energy conservation related to these ways will be discussed. Finally, to extend the success of moving basis approaches to quantum dynamics of open systems we will consider the Non-stochastic Open System Schrödinger Equation (NOSSE).
description: to appear in J. Phys. Chem. A
Analysis of effectors of the Salmonella Typhimurium SPI‐2 type three secretion system
Creators: name: Figueira, Ana Rita
Publisher: name: Imperial College London
Year: 2011

description: Salmonella enterica serovar Typhimurium (S. Typhimurium), an intracellular pathogen, causes gastroenteritis in humans and a systemic disease in mice. The ability of Salmonella to replicate inside host cells requires translocation of effector proteins across the vacuolar membrane, mediated by the Salmonella pathogenicity island‐2 (SPI‐2) type three secretion system (T3SS). However, the repertoire of effectors involved in this process has not been defined. The first part of this PhD work focused on SrfJ, a putative effector of the SPI‐2 T3SS with similarity to human lysosomal glucosylceramidase. Expression of its gene was dependent on SsrA/B, a two‐component regulatory system required for expression of most SPI‐2 effector genes. Expression of srfJ was also shown to occur under SPI‐2 T3SS activation conditions. However, there was no detectable secretion or translocation of the protein, although a srfJ mutant strain had an intracellular replication defect in primary bone marrow‐derived macrophages. Using a dual‐fluorescence reporter system that allows direct measurement of intracellular replication, the contribution to replication of individual SPI‐2 T3SS effectors was investigated. The replication kinetics of S. Typhimurium deletion mutants for all known SPI‐2 effectors were measured and compared in mouse bone marrow‐derived macrophages. Several mutant strains with replication defects were identified, thereby revealing that intracellular replication is the result of the contribution of numerous effectors. Two S. Typhimurium polymutant strains were generated whose replication defects closely resemble that of a SPI‐2 T3SS null mutant and are severely attenuated in virulence in vivo. These strains retained an intact T3SS and delivered a CD8+ T cell epitope via the SPI‐2 T3SS into the cytoplasm of infected cells. Since an S. Typhi mutant strain lacking the SPI‐2 T3SS has been shown to be safe and immunogenic in humans, these polymutant strains could have applications in vaccine design, as carrier strains for the delivery of heterologous antigens.
MOESM1 of Excess Protein Synthesis in FXS Patient Lymphoblastoid Cells Can Be Rescued with a p110Î˛-Selective Inhibitor
Creators: name: Gross, Christina
name: Bassell, Gary
Publisher: name: figshare
Year: 2011
Subjects: subject: Biochemistry
subject: Microbiology
subject: FOS: Biological sciences
subject: Cell Biology
subject: Molecular Biology
subject: Pharmacology
subject: Biotechnology
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: Immunology
subject: FOS: Clinical medicine
subject: Developmental Biology
subject: Cancer
subject: Hematology
subject: 110309 Infectious Diseases
subject: FOS: Health sciences
subject: 60506 Virology

description: Excess Protein Synthesis in FXS Patient Lymphoblastoid Cells Can Be Rescued with a p110Î˛-Selective Inhibitor
Learning to Perceive and Predict Everyday Hand-Object Interactions
Creators: name: Ye, Yufei
Publisher: name: Carnegie Mellon University
Year: 2024
Subjects: classificationCode: 460304
subject: Computer vision

description: This thesis aims to equip computers with the ability to understand everyday hand-object interactions in the physical world – both perceiving ongoing interactions in 3D space and predicting possible interactions. This ability is crucial for applications such as virtual reality, robotic manipulations, and augmented reality. The problem is inherently ill-posed due to the challenges of one-to-many inference and the intricate physical interactions between hands and objects. To address these challenges, we explore a learning approach that mines priors from everyday data to enhance computer perception of interactions. Our goal is to develop methods for building 3D representations that respect the physical world’s inherent structure and can generalize to novel everyday scenes.

We first explore how to scale up 3D object priors for single-view object reconstruction in isolation, by introducing a learning technique for unsupervised, category-level 3D object reconstruction from unstructured image collections. Furthermore,we argue that interactions between hands and objects should not be marginalized as occlusion noise, but rather explicitly modeled to improve 3D reconstruction. To this end,we propose an approach to reconstruct hand-object interactions from a single image by leveraging hand pose information to better infer in-hand objects. Our research then extends the core idea to reconstruction from short video clips, where we combine multiview cues with data-driven priors for accurate 3D inference. While perceiving ongoing interactions allows for predicting possible interactions, we also explore interaction synthesis – predicting spatial arrangements of humanobject interactions. We propose a generative method that leverages a largescale pretrained model to achieve realistic, controllable, and generalizable predictions of novel everyday objects. Finally, this thesis presents a unified generative prior for hand-object interactions, allowing for both reconstruction and prediction tasks. We also make efforts to scale up the training data by aggregating multiple existing real-world interaction datasets. We demonstrate that the resulting joint prior can facilitate interaction reconstruction and prediction, outperforming current task-specific methods.
An argument in favor of strong scaling for deep neural networks with small datasets
Creators: name: Cunha, Renato L. de F.
name: Rodrigues, Eduardo R.
name: Viana, Matheus Palhares
name: Oliveira, Dario Augusto Borges
Publisher: name: arXiv
Year: 2018
Subjects: subject: Distributed, Parallel, and Cluster Computing (cs.DC)
subject: Artificial Intelligence (cs.AI)
subject: Machine Learning (cs.LG)
subject: FOS: Computer and information sciences

description: In recent years, with the popularization of deep learning frameworks and large datasets, researchers have started parallelizing their models in order to train faster. This is crucially important, because they typically explore many hyperparameters in order to find the best ones for their applications. This process is time consuming and, consequently, speeding up training improves productivity. One approach to parallelize deep learning models followed by many researchers is based on weak scaling. The minibatches increase in size as new GPUs are added to the system. In addition, new learning rates schedules have been proposed to fix optimization issues that occur with large minibatch sizes. In this paper, however, we show that the recommendations provided by recent work do not apply to models that lack large datasets. In fact, we argument in favor of using strong scaling for achieving reliable performance in such cases. We evaluated our approach with up to 32 GPUs and show that weak scaling not only does not have the same accuracy as the sequential model, it also fails to converge most of time. Meanwhile, strong scaling has good scalability while having exactly the same accuracy of a sequential implementation.
description: 8 pages, 5 figures, Presented at HPML 2018 - http://hpml2018.github.io/
A novel model of non-singular oscillating cosmology on flat Randall-Sundrum II braneworld
Creators: name: Sengupta, Rikpratik
Publisher: name: arXiv
Year: 2023
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We obtain a \textit{novel} model of oscillating non-singular cosmology on the spatially flat Randall-Sundrum (RS) II brane. At early times, the universe is dominated by a scalar field with an inflationary emergent potential $V(ϕ)=A(e^{Bϕ}-1)^2$, $A$ and $B$ being constants. Interestingly, we find that such a scalar field can source a non-singular bounce, replacing the big bang on the brane. The turnaround again happens naturally on the brane dominated by a phantom dark energy (favoured by observations\cite{E1,E2,E3} at late times), thus avoiding the big rip singularity and leading upto the following non-singular bounce via a contraction phase. There is a smooth non-singular transition of the brane universe through both the bounce and turnaround, leading to alternate expanding and contracting phases. This is the \textit{first} model where a single braneworld of positive tension can be made to recycle as discussed in details in the concluding section.
description: 11 pages, 3 Figures