cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
MPEC 2023-H241 : 2023 HT6
Creators: name: Minor Planet Center Staff
Publisher: name: The Minor Planet Center
Year: 2023
Subjects: subject: Small Solar System bodies
valueUri: http://astrothesaurus.org/uat/1469
subject: 2023 HT6

description: The Minor Planet Electronic Circulars contain information on unusual minor planets, routine data on comets and natural satellites, and occasional editorial announcements.  They are published on behalf of Division F of the International Astronomical Union by the Minor Planet Center, Smithsonian Astrophysical Observatory, Cambridge, MA 02138, U.S.A.
On complete functions in Jucys-Murphy elements
Creators: name: Feray, Valentin
Publisher: name: arXiv
Year: 2010
Subjects: subject: Combinatorics (math.CO)
subject: FOS: Mathematics

description: The problem of computing the class expansion of some symmetric functions evaluated in Jucys-Murphy elements appears in different contexts, for instance in the computation of matrix integrals. Recently, M. Lassalle gave a unified algebraic method to obtain some induction relations on the coefficients in this kind of expansion. In this paper, we give a simple purely combinatorial proof of his result. Besides, using the same type of argument, we obtain new simpler formulas. We also prove an analogous formula in the Hecke algebra of $(S_{2n},H_n)$ and use it to solve a conjecture of S. Matsumoto on the subleading term of orthogonal Weingarten function. Finally, we propose a conjecture for a continuous interpolation between both problems.
description: 30 pages; second version with more details. Third version including minor corrections suggested by referees. To appear in Annals of Combinatorics
MPEC 2023-H242 : 2023 HU6
Creators: name: Minor Planet Center Staff
Publisher: name: The Minor Planet Center
Year: 2023
Subjects: subject: Small Solar System bodies
valueUri: http://astrothesaurus.org/uat/1469
subject: 2023 HU6

description: The Minor Planet Electronic Circulars contain information on unusual minor planets, routine data on comets and natural satellites, and occasional editorial announcements.  They are published on behalf of Division F of the International Astronomical Union by the Minor Planet Center, Smithsonian Astrophysical Observatory, Cambridge, MA 02138, U.S.A.
Microstructure and transport properties of FeTe0.5Se0.5 superconducting wires fabricated by ex-situ Powder-in-tube process
Creators: name: Ozaki, T.
name: Deguchi, K.
name: Mizuguchi, Y.
name: Kumakura, H.
name: Takano, Y.
Publisher: name: arXiv
Year: 2010
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: We fabricated FeTe0.5Se0.5 superconducting wires using ex-situ Powder-in-tube method with an Fe sheath. It was amazing that superconducting current was observed in the as-drawn wire without any heat treatments. By heat treatment at 200C for 2 hours, Tczero and Jc at 4.2 K were enhanced up to 9.1 K and 64.1 A/cm2 (Ic = 182.6 mA), respectively. Furthermore, the Jc of FeTe0.5Se0.5 wire heat treated at 200C for 2 hours was not much sensitive to the applied magnetic fields. Therefore, FeTe0.5Se0.5 wires have a great potential for applications.
description: 15 pages, 5 figures
Role of Lactic Acid Bacteria (LAB) in Displacing Biofilms in the Food Industry
Creators: name: Tomé, Andreia
Publisher: name: Zenodo
Year: 2023
Subjects: Probiotics; biofilms; food contact surfaces

description: Food contact surfaces are especially prone to microbial adhesion and biofilm development owing to the availability of nutrient rich food residues. Foodborne biofilms compromise the proper functioning of equipment and impair food safety and quality, thus constituting a major concern. The higher tolerance of biofilms to traditional cleaning treatments has emphasised the development of new methodologies to control biofilms in the food industry. Probiotics and their products have shown great potential for preventing attachment and biofilm formation by a large spectrum of foodborne microorganisms. This work aimed to evaluate the ability of four lactic acid bacteria (strains to displace pre formed biofilms of Escherichia coli a bacterium commonly found on biofilms developed in food contact surfaces. The results showed the potential of L fermentum L paracasei L plantarum and L lactis against E coli biofilms L paracasei was the most promising probiotic strain considering both antimicrobial and antibiofilm activity. The application of probiotics in food production processes can reduce the occurrence of foodborne outbreaks and improve the public health in a sustainable and environmentally friendly way.
A Canadian opera aria anthology for soprano
Creators: name: Nakagawa, Stephanie Eiko
Publisher: name: University of British Columbia
Year: 2017

description: A problem that Canadian opera faces is that once works are premiered, they rarely receive any further performances. Singers must overcome numerous barriers to sing these works due to limited score accessibility and lack of aria adaptations and recordings. Even if singers feel passionately about Canadian opera, such obstacles may impede their motivation to perform Canadian repertoire. This thesis aims to increase the awareness and accessibility of Canadian opera through the creation of a “Canadian Opera Aria Anthology for Soprano.” The anthology includes background information about the operas, composer and librettist biographies, opera synopses, and aria adaptations. In addition, performance and interpretive guides have been formed from the author’s own research in performing these works, available recordings, and from information gathered from the author’s interviews with the composers and librettists. Hopefully the arias within this anthology will not only provide singers with useful arias for auditions, but also give them and their audience a lens through which they may better understand Canadian opera and culture. Ultimately, this research aims to increase the recognition of Canadian opera and to develop a greater interest and appreciation for these works so that one day, they may become a part of the standard operatic repertoire and reach both Canadian and international stages.
MPEC 2023-H243 : 2023 HV6
Creators: name: Minor Planet Center Staff
Publisher: name: The Minor Planet Center
Year: 2023
Subjects: subject: Small Solar System bodies
valueUri: http://astrothesaurus.org/uat/1469
subject: 2023 HV6

description: The Minor Planet Electronic Circulars contain information on unusual minor planets, routine data on comets and natural satellites, and occasional editorial announcements.  They are published on behalf of Division F of the International Astronomical Union by the Minor Planet Center, Smithsonian Astrophysical Observatory, Cambridge, MA 02138, U.S.A.
Pour une égalité des genres renforcée dans les institutions de l'UEM: les appels renouvelés du Parlement européen. Revue ECU/EURO, Actualités
Creators: name: Allemand, Frédéric
Publisher: name: RESuME
Year: 2019
Subjects: subject: Economic and Monetary Union
subject: Union économique et monétaire
subject: gender balance
subject: égalité des genres
subject: appointment
subject: nomination
subject: European Parliament
subject: Parlement européen

description: Dans une série de votes  intervenus le 14 mars 2019, le Parlement européen a, à nouveau, déploré le déséquilibre important entre hommes et femmes dans le choix des candidats aux postes à responsabilité au sein des institutions intervenant dans le domaine de l'UEM.
Learning quantities of interest from parametric PDEs: An efficient neural-weighted Minimal Residual approach
Creators: name: Brevis, Ignacio
name: Muga, Ignacio
name: Pardo, David
name: Rodriguez, Oscar
name: van der Zee, Kristoffer G.
Publisher: name: arXiv
Year: 2023
Subjects: subject: Numerical Analysis (math.NA)
subject: FOS: Mathematics
subject: 65N30

description: The efficient approximation of parametric PDEs is of tremendous importance in science and engineering. In this paper, we show how one can train Galerkin discretizations to efficiently learn quantities of interest of solutions to a parametric PDE. The central component in our approach is an efficient neural-network-weighted Minimal-Residual formulation, which, after training, provides Galerkin-based approximations in standard discrete spaces that have accurate quantities of interest, regardless of the coarseness of the discrete space.
Neutral Higgs Boson Decays to Squark Pairs reanalyzed
Creators: name: Accomando, E.
name: Chachamis, G.
name: Fugel, F.
name: Spira, M.
name: Walser, M.
Publisher: name: arXiv
Year: 2011
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: We analyze neutral Higgs boson decays into squark pairs in the minimal supersymmetric extension of the Standard Model and improve previous analyses. In particular the treatment of potentially large higher-order corrections due to the soft SUSY breaking parameters A_b, the trilinear Higgs coupling to sbottoms, and mu, the Higgsino mass parameter, is investigated. The remaining theoretical uncertainties including the SUSY-QCD corrections are analyzed quantitatively.
description: 28 pages, 10 figures, discussion of results extended, results unchanged, version accepted by PRD
Supplementary Figures from A tardigrade in Dominican amber
Creators: name: Mapalo, Marc A.
name: Robin, Ninon
name: Boudinot, Brendon E.
name: Ortega-Hernández, Javier
name: Barden, Phillip
Publisher: name: The Royal Society
Year: 2021
Subjects: subject: Evolutionary Biology
subject: FOS: Biological sciences
subject: 40308 Palaeontology (incl. Palynology)
subject: FOS: Earth and related environmental sciences
subject: 60301 Animal Systematics and Taxonomy
subject: 60310 Plant Systematics and Taxonomy

description: Tardigrades are a diverse group of charismatic microscopic invertebrates that are best known for their ability to survive extreme conditions. Despite their long evolutionary history and global distribution in both aquatic and terrestrial environments, the tardigrade fossil record is exceedingly sparse. Molecular clocks estimate that tardigrades diverged from other panarthropod lineages before the Cambrian, but only two definitive crown-group representatives have been described to date, both from Cretaceous fossil deposits in North America. Here, we report a third fossil tardigrade from Miocene age Dominican amber. Paradoryphoribius chronocaribbeus gen. et sp. nov. is the first unambiguous fossil representative of the diverse superfamily Isohypsibioidea, as well as the first tardigrade fossil described from the Cenozoic. We propose that the patchy tardigrade fossil record can be explained by the preferential preservation of these microinvertebrates as amber inclusions, coupled with the scarcity of fossiliferous amber deposits before the Cretaceous.
Characterizing the granzyme-perforin pathway and its utility as a cell-to-cell delivery system for cellular therapeutics
Creators: name: Woodsworth, Daniel
Publisher: name: University of British Columbia
Year: 2017

description: Alongside small molecules and biologics, cell-based therapies are emerging as a third class of medical therapy. Additional sensors, actuators and control circuits would greatly expand the range of function and application of cellular therapeutics. To this end, a cell-to-cell delivery module has been developed by investigating and re-engineering the granzyme-perforin pathway of cytotoxic lymphocytes. A computational biophysical model of this process was developed and implemented using a spatial stochastic simulation algorithm, which indicated that hindered diffusion in the immune synapse is critical to ensure reliable granzyme internalization and that large amounts of granzyme escape the synapse, but should not have toxic effects due to rapid spatiotemporal dilution. Additionally, these results indicated that passive diffusion is sufficient for granzyme entry into the target cell, which motivated efforts to use granzyme as a molecular chaperone to transfer exogenous payloads from effector to target cells. Using a fluorescent protein payload, the subcellular localization of several granzyme B derived chaperones was characterized using fluorescence microscopy, and then their capacity to transfer the payload to target cells was evaluated in co-culture experiments. The results indicated that the motifs in granzyme B that are required for lytic granule loading are only functional and contiguous in the folded protein. Additionally, these experiments demonstrated that full length granzyme B is a suitable chaperone for delivering protein payloads to target cells via the granzyme-perforin pathway. Attempts were then made to use this system to deliver potent orthogonal toxins to apoptosis and lymphocyte resistant tumor cells. A range of granzyme B toxin fusion proteins were constructed, all of which retained toxic activity to varying degrees. To render target cells resistant to lymphocyte attack both small molecule and protein based inhibitors of apoptosis were tested in several cell lines, which delayed cell death, but did not stop it. Using effector target dose response curves, a moderate increase in target cell death was observed in cells targeted by lymphocytes expressing granzyme toxin fusion proteins, as compared to wild type lymphocytes, but the biological significance of this effect is uncertain. Approaches to improve this granzyme-perforin mediated delivery system and its therapeutic utility are discussed and explored.
Ferromagnetic frustrated spin systems on the square lattice: a Schwinger boson study
Creators: name: Feldner, H.
name: Cabra, D. C.
name: Rossini, G. L.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: We study a ferromagnetic Heisenberg spin system on the square lattice, with nearest neighbors interaction J_1 frustrated by second J_2 and third J_3 neighbors antiferromagnetic interactions, using a mean field theory for the Schwinger boson representation of spins. For J_3=0 we find that the boundary between the ferromagnetic and the collinear classical phases shifts to smaller values of J_2 when quantum fluctuations are included. Along the line J_2/|J_1|= 1 the boundaries between the collinear and incommensurate regions are strongly shifted to larger values with respect to the classical case. We do not find clear evidence for spin gapped phases within the present approximation.
description: 7 pages, 11 figures
Lessons learned in content architecture harmonization and metadata models
Creators: name: Wagger, Shana
name: Park, Randi
name: Bedford, Denise
Publisher: name: Zenodo
Year: 2022
Subjects: subject: metadata
subject: metadata models
subject: World Bank
subject: taxonomy
subject: https://iskouk.org/subjects/DHASU2Q4
subject: https://iskouk.org/subjects/AX075AC1
subject: https://iskouk.org/subjects/1VL1HVML
subject: https://iskouk.org/subjects/P5UQOBEY
subject: https://iskouk.org/subjects/9OQMAHBK

description: This paper assesses the World Bank’s experiences in defining and harmonizing underlying
 content architecture and refining metadata models to make 30 years’ worth of legacy
 series content discoverable as parent-child content objects within a publication portal.
 Content objects were analyzed and converted to XML to capture structure, meaning, and
 relationships within and among objects. Metadata were associated in separately refined
 models for parent content objects and their child content objects, in order to create multiple
 browse and search strategies for the user. The World Bank will share lessons and challenges
 in this endeavor, including the challenges of applying an institutionally based taxonomy
 required to express subject matter responsibilities and relationships within the World Bank.
Energy Level Displacement of Excited np State of Kaonic Deuterium In Faddeev Equation Approach
Creators: name: Faber, M.
name: Faifman, M. P.
name: Ivanov, A. N.
name: Marton, J.
name: Pitschmann, M.
name: Troitskaya, N. I.
Publisher: name: arXiv
Year: 2010
Subjects: subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: We calculate the energy level displacement of the excited $np$ state of kaonic deuterium in terms of the P-wave scattering length of $K^-d$ scattering. We solve the Faddeev equations for the amplitude of $K^-d$ scattering in the fixed centre approximation and derive the complex P-wave scattering length of $K^-d$ scattering in terms of the S-wave and P-wave scattering lengths of $\bar{K}N$ scattering. The estimated uncertainty of the complex P-wave scattering length is of about $15\,%$. For the calculated width $Γ_{2p} = 10.203\,{\rm meV}$ of the excited $2p$ state of kaonic deuterium we evaluate the yield $Y_{K^-d} = 0.27\,%$ of $X$-rays for the $K_α$ emission line of kaonic deuterium. Using the complex S-wave and P-wave scattering lengths of $\bar{K}N$ scattering, calculated in \cite{ECL1,Weise1}, we get the width $Γ_{2p} = 2.675\,{\rm meV}$ of the excited $2p$ state and the yield $Y_{K^-d} = 1.90 \,%$ of $X$-rays for the $K_α$ emission line of kaonic deuterium. The results, obtained in this paper, can be used for the planning of experiments on the measurements of the energy level displacement of the ground state of kaonic deuterium, caused by strong low-energy interactions.
description: 13 pages
Character list from A tardigrade in Dominican amber
Creators: name: Mapalo, Marc A.
name: Robin, Ninon
name: Boudinot, Brendon E.
name: Ortega-Hernández, Javier
name: Barden, Phillip
Publisher: name: The Royal Society
Year: 2021
Subjects: subject: Evolutionary Biology
subject: FOS: Biological sciences
subject: 40308 Palaeontology (incl. Palynology)
subject: FOS: Earth and related environmental sciences
subject: 60301 Animal Systematics and Taxonomy
subject: 60310 Plant Systematics and Taxonomy

description: List of characters and character states used in the phylogenetic analyses
แนวทางการจัดการท่องเที่ยวโดยชุมชนบ้านกำพี้ ตำบลกำพี้ อำเภอบรบือ จังหวัดมหาสารคาม
Creators: name: นริศรา คำสิงห์
Publisher: name: โรงพิมพ์มหาวิทยาลัยราชภัฏมหาสารคาม
Year: 2560
Subjects: การจัดการท่องเที่ยว
การท่องเที่ยวโดยชุมชน

description: วารสารวิชาการ คณะวิทยาการจัดการ, 2, 3, Jul-20
The open string membrane paradigm with external electromagnetic fields
Creators: name: Kim, Keun-Young
name: Shock, Jonathan P.
name: Tarrio, Javier
Publisher: name: arXiv
Year: 2011
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: We study the effective geometry felt by the fluctuations of open strings living on the worldvolume of probe D-branes in the presence of background electromagnetic fields. This is captured by an effective action consisting of a Maxwell term and a topological term, with the role of the metric played by the open string metric. Studying generalized Eddington-Finkelstein coordinates for stationary but non-static manifolds, we consider an open string membrane paradigm to obtain a generic formula for the DC transport coefficients, including the effect of external electromagnetic fields present on the worldvolume of the probe branes. We show that the previously studied singular shell, present when a critical electric field strength is turned on, behaves as a horizon for the open string degrees of freedom. The results of this analysis can be used to define a membrane paradigm for a very general class of spacetimes with non-diagonal metrics.
description: 31 pages, 3 figures, v2: Appendix added, minor corrections
Analysis of scalar perturbations in cosmological models with a non-local scalar field
Creators: name: Koshelev, Alexey S.
name: Vernov, Sergey Yu.
Publisher: name: arXiv
Year: 2010
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We develop the cosmological perturbations formalism in models with a single non-local scalar field originating from the string field theory description of the rolling tachyon dynamics. We construct the equation for the energy density perturbations of the non-local scalar field in the presence of the arbitrary potential and formulate the local system of equations for perturbations in the linearized model when both simple and double roots of the characteristic equation are present. We carry out the general analysis related to the curvature and entropy perturbations and consider the most specific example of perturbations when important quantities in the model become complex.
description: LaTeX, 25 pages, 1 figure, v2: Subsection 3.2 and Section 5 added, references added, accepted for publication in Class. Quant. Grav. arXiv admin note: text overlap with arXiv:0903.5176
Eigenvalue equation for a 1--D Hamilton function in deformation quantization
Creators: name: Tosiek, Jaromir
Publisher: name: arXiv
Year: 2011
Subjects: subject: Mathematical Physics (math-ph)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: The eigenvalue equation has been found for a Hamilton function in a form independent of the choice of a potential. This paper proposes a modified Fedosov construction on a flat symplectic manifold. Necessary and sufficient conditions for solutions of an eigenvalue equation to be Wigner functions of pure states are presented. The 1--D harmonic oscillator eigenvalue equation in the coordinates time and energy is solved. A perturbation theory based on the variables time and energy is elaborated.
description: 17 pages, 3 figures
Syzygies of Segre embeddings and Delta-modules
Creators: name: Snowden, Andrew
Publisher: name: arXiv
Year: 2010
Subjects: subject: Algebraic Geometry (math.AG)
subject: FOS: Mathematics

description: We study syzygies of the Segre embedding of P(V_1) x ... x P(V_n), and prove two finiteness results. First, for fixed p but varying n and V_i, there is a finite list of "master p-syzygies" from which all other p-syzygies can be derived by simple substitutions. Second, we define a power series f_p with coefficients in something like the Schur algebra, which contains essentially all the information of p-syzygies of Segre embeddings (for all n and V_i), and show that it is a rational function. The list of master p-syzygies and the numerator and denominator of f_p can be computed algorithmically (in theory). The central observation of this paper is that by considering all Segre embeddings at once (i.e., letting n and the V_i vary) certain structure on the space of p-syzygies emerges. We formalize this structure in the concept of a Delta-module. Many of our results on syzygies are specializations of general results on Delta-modules that we establish. Our theory also applies to certain other families of varieties, such as tangent and secant varieties of Segre embeddings.
description: 34 pages
Supplementary Table 1 from A tardigrade in Dominican amber
Creators: name: Mapalo, Marc A.
name: Robin, Ninon
name: Boudinot, Brendon E.
name: Ortega-Hernández, Javier
name: Barden, Phillip
Publisher: name: The Royal Society
Year: 2021
Subjects: subject: Evolutionary Biology
subject: FOS: Biological sciences
subject: 40308 Palaeontology (incl. Palynology)
subject: FOS: Earth and related environmental sciences
subject: 60301 Animal Systematics and Taxonomy
subject: 60310 Plant Systematics and Taxonomy

description: Tardigrades are a diverse group of charismatic microscopic invertebrates that are best known for their ability to survive extreme conditions. Despite their long evolutionary history and global distribution in both aquatic and terrestrial environments, the tardigrade fossil record is exceedingly sparse. Molecular clocks estimate that tardigrades diverged from other panarthropod lineages before the Cambrian, but only two definitive crown-group representatives have been described to date, both from Cretaceous fossil deposits in North America. Here, we report a third fossil tardigrade from Miocene age Dominican amber. Paradoryphoribius chronocaribbeus gen. et sp. nov. is the first unambiguous fossil representative of the diverse superfamily Isohypsibioidea, as well as the first tardigrade fossil described from the Cenozoic. We propose that the patchy tardigrade fossil record can be explained by the preferential preservation of these microinvertebrates as amber inclusions, coupled with the scarcity of fossiliferous amber deposits before the Cretaceous.
Effect of torsional and cyclic fatigue preloading on the fracture resistance of HyFlex EDM NiTi files
Creators: name: Tra, Charles
Publisher: name: University of British Columbia
Year: 2017

description: Objective: Endodontic nickel-titanium (NiTi) files are submitted to a combination of cyclic fatigue and torsional stresses when used in a root canal, which could lead to their fracture. The purpose of this study was to evaluate the effect of various degrees of cyclic fatigue preloading on the torsional failure and of torsional preloading on the cyclic fatigue life of heat-treated HyFlex EDM NiTi files (Coltene/Whaledent, Altstätten, Switzerland). Methods: The mean number of cycles until failure (Nf) of HyFlex EDM and HyFlex CM NiTi (Coltene/Whaledent) files (size #40, taper 0.04 for both files) was examined in a 5mm radius and 60° single curve. Torque and distortion angle at the failure of new instruments and instruments stressed to 50% and 75% of the Nf were measured according to ISO 3630-1. Other new files were preloaded at 5%, 15%, 25% and 50% of the mean distortion angle before the fatigue test. After torsional preloading, the Nf was examined. The fracture surface of each fragment was examined with a scanning electron microscope. Results: The fatigue resistance of HyFlex EDM files was higher than that of HyFlex CM files (P < .05). The torque and distortion angle at fracture of new HyFlex EDM files were similar to those of new HyFlex CM files. For both instruments, there was a significant effect because of the torsional preloads. Over 15% torsional preloading lowered the Nf of HyFlex EDM files (P < .05), while a moderate amount of 50% torsional preloading significantly lowered the Nf of HyFlex CM files (P < .05). In the fatigue pre-stressed groups, there was no negative effect of the HyFlex EDM group even with 75% preloading on the torque and distortion angle. The fractographic patterns corresponded to the pattern defined by the last stage test. Conclusions: A low amount of torsional preloading reduced the fatigue resistance of HyFlex EDM files. The torsional resistance of HyFlex EDM files was less affected by previous load of cyclic fatigue even after extensive pre-cycling.
Optically detected NMR of optically hyperpolarized 31P neutral donors in 28Si
Creators: name: Steger, M.
name: Sekiguchi, T.
name: Yang, A.
name: Saeedi, K.
name: Hayden, M. E.
name: Thewalt, M. L. W.
name: Itoh, K. M.
name: Riemann, H.
name: Abrosimov, N. V.
name: Becker, P.
name: Pohl, H. -J.
Publisher: name: arXiv
Year: 2010
Subjects: subject: Atomic Physics (physics.atom-ph)
subject: Other Condensed Matter (cond-mat.other)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: The electron and nuclear spins of the shallow donor 31P are promising qubit candidates invoked in many proposed Si-based quantum computing schemes. We have recently shown that the near-elimination of inhomogeneous broadening in highly isotopically enriched 28Si enables an optical readout of both the donor electron and nuclear spins by resolving the donor hyperfine splitting in the near-gap donor bound exciton transitions. We have also shown that pumping these same transitions can very quickly produce large electron and nuclear hyperpolarizations at low magnetic fields, where the equilibrium electron and nuclear polarizations are very small. Here we show preliminary results of the measurement of 31P neutral donor NMR parameters using this optical nuclear hyperpolarization mechanism for preparation of the 31P nuclear spin system, followed by optical readout of the resulting nuclear spin population after manipulation with NMR pulse sequences. This allows for the observation of single-shot NMR signals with very high signal to noise ratio under conditions where conventional NMR is not possible, due to the low concentration of 31P and the small equilibrium polarization.
description: Invited Presentation at ICPS-30 (2010), Seoul, Korea
ВНЕСОК ЄВГЕНА ПЕРФЕЦЬКОГО В ДОСЛІДЖЕННЯ СЛОВ'ЯНСЬКОГО ЛІТОПИСАННЯ
Creators: name: Dzyra, Ivan
Publisher: name: Zenodo
Year: 2019

description: Ім’я видатного українського славіста, літописознавця, дослідника історії Закарпаття Євгена Юліановича Перфецького (1888–1947) до недавнього часу залишалося малопомітним в українській історіографії. Це й не дивно, адже за тоталітарної доби в УРСР спадщина вчених-емігрантів вилучалася з наукового обігу, а їхні імена були приречені на забуття. Однак вагомий внесок Є. Перфецького в українську історичну науку, зокрема літописознавство, потребує належного поцінування й використання. Правда, з кінця 1980-х окремі згадки про вченого почали з’являтися на сторінках вітчизняної літератури. Значно кращою виглядає ситуація в російській історичній науці, над представниками якої не висівдамоклів меч «буржуазного націоналізму». В той час як російський історик А.Г. Кузьмін відкрито міг визнавати себе «последователем А.А. Шахматова, В.М. Истрина, Е.Ю. Перфецкого, А.Н. Насонова…», подібна заява дорого б коштувала будь-якому його українському колезі. Через це аналіз російської історіографії показує, що стосовно вивченнятворчої спадщини Є.Ю. Перфецького, у тому числі й у царині літописознавства, вона може похвалитися більшими успіхами, ніж українська. Так, деякі аспекти означеної проблематики певною мірою висвітлені вузагальнюючій монографії В. Буганова «Отечественная историографиярусского летописания»3.
title: Classifying Invasive Breast Cancer (no special type) by Quantification Analysis ～Magnetic Resonance Imaging Characteristics and Pathologic Correlation～
Creators: name: Miyazaki, Yoshiaki
Publisher: name: European Congress of Radiology
Year: 2019
Subjects: subject: Breast
subject: MR
subject: CAD
subject: Radiotherapy techniques

description: Aims and objectives Methods and materials Results Conclusion Personal information References
description: Aims and objectives: Many of a breast cancer is Invasive carcinoma of no special type, and it is the most common form of invasive breast cancer[1-3]. The three patterns presented in Fig. 1 belong to invasive carcinomas of no special type. In Japan, invasive carcinomas...
Semantic Annotations in the Archaeological Domain
Creators: name: Vlachidis, Andreas
name: Binding, Ceri
name: May, Keith
Publisher: name: Zenodo
Year: 2009
Subjects: subject: natural language processing
subject: NLP
subject: Ontology
subject: semantic annotations
subject: CIDOC
subject: conceptual reference model
subject: https://iskouk.org/subjects/Q5RA1J29
subject: https://iskouk.org/subjects/ZZAC19NJ
subject: https://iskouk.org/subjects/LROL2WB8
subject: https://iskouk.org/subjects/4WNPCVVX
subject: https://iskouk.org/subjects/XPBRH3E0

description: The authors describe the use of Information Extraction (IE), a Natural Language Processing (NLP)
 technique to assist ‘rich’ semantic indexing of diverse archaeological text resources. Such unpublished online
 documents are often referred to as ‘Grey Literature’. Established document indexing techniques are not sufficient to
 satisfy user information needs that expand beyond the limits of a simple term matching search. The focus of the research is to
 direct a semantic-aware 'rich' indexing of diverse natural language resources with properties capable of satisfying
 information retrieval from on-line publications and datasets associated with the Semantic Technologies for Archaeological
 Resources (STAR) project in the UoG Hypermedia Research Unit. Natural Language Processing, Ontology
 Based Information Extraction, Semantic Annotations, CIDOC
 Conceptual Reference Model.
Kähler-Einstein metrics on families of Fano varieties
Creators: name: Pan, Chung-Ming
name: Trusiani, Antonio
Publisher: name: arXiv
Year: 2023
Subjects: subject: Complex Variables (math.CV)
subject: Algebraic Geometry (math.AG)
subject: Differential Geometry (math.DG)
subject: FOS: Mathematics

description: Given a one-parameter family of $\mathbb{Q}$-Fano varieties such that the central fibre admits a unique Kähler-Einstein metric, we provide an analytic method to show that the neighboring fibre admits a unique Kähler-Einstein metric. Our results go beyond by establishing uniform a priori estimates on the Kähler-Einstein potentials along fully degenerate families of $\mathbb{Q}$-Fano varieties. In addition, we show the continuous variation of these Kähler-Einstein currents, and establish uniform Moser-Trudinger inequalities and uniform coercivity of the Ding functionals. Central to our article is introducing and studying a notion of convergence for quasi-plurisubharmonic functions within families of normal Kähler varieties. We show that the Monge-Ampère energy is upper semi-continuous with respect to this topology, and we establish a Demailly-Kollár result for functions with full Monge-Ampère mass.
description: 40 pages; v2: exposition improved following the referee's suggestions; to appear in J. Reine Angew. Math. (Crelle's Journal)
Classical $6j$-symbols for finite dimensional representation of the algebra $\mathfrak{gl}_3$
Creators: name: Artamonov, D. V.
Publisher: name: arXiv
Year: 2023
Subjects: subject: Representation Theory (math.RT)
subject: Mathematical Physics (math-ph)
subject: Complex Variables (math.CV)
subject: FOS: Mathematics
subject: FOS: Physical sciences

description: In the paper an explicit formula for an arbitrary $6j$-symbol for finite-dimensional irreducible representations of the algebra $\mathfrak{gl}_3$ is derived. A $6j$-symbol is written as a result of substitution of $\pm 1$ into a series of hypergeometric type, which is similar to a $Γ$-series, which is a simplest example of a multivariate series of hypergeometric type. The selection rulers for a $6j$-symbol are derived.
description: 21 pages; several typos are corrected
Quantification of the performance of chaotic micromixers on the basis of finite time Lyapunov exponents
Creators: name: Sarkar, Aniruddha
name: Narváez, Ariel
name: Harting, Jens
Publisher: name: arXiv
Year: 2010
Subjects: subject: Fluid Dynamics (physics.flu-dyn)
subject: Soft Condensed Matter (cond-mat.soft)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: Chaotic micromixers such as the staggered herringbone mixer developed by Stroock et al. allow efficient mixing of fluids even at low Reynolds number by repeated stretching and folding of the fluid interfaces. The ability of the fluid to mix well depends on the rate at which "chaotic advection" occurs in the mixer. An optimization of mixer geometries is a non trivial task which is often performed by time consuming and expensive trial and error experiments. In this paper an algorithm is presented that applies the concept of finite-time Lyapunov exponents to obtain a quantitative measure of the chaotic advection of the flow and hence the performance of micromixers. By performing lattice Boltzmann simulations of the flow inside a mixer geometry, introducing massless and non-interacting tracer particles and following their trajectories the finite time Lyapunov exponents can be calculated. The applicability of the method is demonstrated by a comparison of the improved geometrical structure of the staggered herringbone mixer with available literature data.
description: 9 pages, 8 figures
Who leads? Who follows? Political representation and opinion formation
Creators: name: Nuesser, Andrea
Publisher: name: University of British Columbia
Year: 2017

description: To understand political representation and opinion formation, we need to comprehend the dynamics between political parties and voters: Who leads? Who follows? The comparative representation literature assumes that voters lead and parties follow. Representation is understood as a principal-agent relationship in which citizens elect parties to act on their behalf. Most studies assume that voters have fixed issue opinions and regularly engage in policy voting. Conversely, the increasingly dominant view within the American public opinion literature is that parties lead and voters follow. Focussing on cognitive processes, these works suggest that the correspondence between policy preferences and party choice is not the product of policy-oriented evaluation, but of other psychological forces—mainly persuasion and projection—and conditional on partisanship. As almost all the evidence comes from the US, we know little about the impact of parties in multiparty systems, where voters are naturally pressed to think of governing coalitions. In the US, both processes have become more prevalent during the current era of polarization. To the extent that polarization animates the last twenty years of American scholarship, what is the story in Europe? A handful of single-country studies claim the opposite trend: depolarization. What is missing is systematic evidence from multiple countries and longer periods. This dissertation bridges the gap between European and American scholarship and makes important contributions to the literature. First, it fills a Europe-wide gap on polarization and depolarization, suggesting that both movements occur and that both are functionally linked. While depolarization is the dominant trend on the general Left-Right dimension, polarization best describes party movement on European unification and multiculturalism. Second, the dissertation demonstrates that an increase in sophistication is required to deal with aggregate notions of leading and following. It shows that depolarization is an under-theorized concept that should not be mistaken for simply the opposite of polarization. Third, using advanced estimation techniques, this thesis provides realistic assessments of leading and following. The results suggest that leading is much less prevalent in Europe than commonly assumed. Instead, there is solid evidence that European voters follow, conditional on partisanship.
Electronic supplementary material from Insertions and deletions in the RNA sequence–structure map
Creators: name: Martin, Nora S.
name: Ahnert, Sebastian E.
Publisher: name: The Royal Society
Year: 2021
Subjects: subject: Biophysics
subject: Evolutionary Biology
subject: FOS: Biological sciences
subject: Computational Biology

description: Genotype–phenotype maps link genetic changes to their fitness effect and are thus an essential component of evolutionary models. The map between RNA sequences and their secondary structures is a key example and has applications in functional RNA evolution. For this map, the structural effect of substitutions is well understood, but models usually assume a constant sequence length and do not consider insertions or deletions. Here, we expand the sequence–structure map to include single nucleotide insertions and deletions by using the RNAshapes concept. To quantify the structural effect of insertions and deletions, we generalize existing definitions for robustness and non-neutral mutation probabilities. We find striking similarities between substitutions, deletions and insertions: robustness to substitutions is correlated with robustness to insertions and, for most structures, to deletions. In addition, frequent structural changes after substitutions also tend to be common for insertions and deletions. This is consistent with the connection between energetically suboptimal folds and possible structural transitions. The similarities observed hold both for genotypic and phenotypic robustness and mutation probabilities, i.e. for individual sequences and for averages over sequences with the same structure. Our results could have implications for the rate of neutral and non-neutral evolution.
An integrated semantic model based on metadata and folksonomy
Creators: name: Wang, Mei-Xue
Publisher: name: Zenodo
Year: 2009
Subjects: subject: metadata
subject: folksonomies
subject: research
subject: https://iskouk.org/subjects/Q4L57KRN
subject: https://iskouk.org/subjects/FVKXA4HR

description: Combining data provider metadata with related objects provided by user behaviour.
Frozen discord in non-Markovian dephasing channels
Creators: name: Mazzola, L.
name: Piilo, J.
name: Maniscalco, S.
Publisher: name: arXiv
Year: 2010
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We investigate the dynamics of quantum and classical correlations in a system of two qubits under local colored-noise dephasing channels. The time evolution of a single qubit interacting with its own environment is described by a memory kernel non-Markovian master equation. The memory effects of the non-Markovian reservoirs introduce new features in the dynamics of quantum and classical correlations compared to the white noise Markovian case. Depending on the geometry of the initial state, the system can exhibit frozen discord and multiple sudden transitions between classical and quantum decoherence [L. Mazzola, J. Piilo and S. Maniscalco, Phys. Rev. Lett. 104 (2010) 200401]. We provide a geometric interpretation of those phenomena in terms of the distance of the state under investigation to its closest classical state in the Hilbert space of the system.
description: 11 pages, 2 figures
title: Investigation of immune correlates, and impact of human cytomegalovirus and immune activation, on tuberculosis disease risk
Creators: name: Stockdale, L
Publisher: name: London School of Hygiene & Tropical Medicine
Year: 2020

description: Background: Recent evidence implicates human cytomegalovirus (HCMV), immune activation and inflammation as risk factors for tuberculosis (TB) disease. Evidence also points towards the underappreciated importance of humoral immunity in protection against TB. Methods: This PhD thesis uses stored serum samples from an established rural Ugandan cohort to investigate associations between HCMV, inflammation and TB. Firstly, HCMV epidemiology is investigated, and levels of mycobacterial antibodies are characterised in a cross-sectional study design including over 2,000 individuals. Secondly, a nested case-control study design was employed to explore longitudinal relationships prior to TB diagnosis in 343 matched samples. Results: This work has characterised the HCMV seropositivity in this population and found that 95% of individuals are infected by age 5. Mycobacteria-specific antibody levels increased in all individuals until a plateau was reached at approximately age 20. HIV positivity and high HCMV IgG levels were independently associated with decreased levels of mycobacterial antibodies. HCMV IgG levels, but not other chronic herpes infections EBV and HSV, are associated with increased risk of TB up to 14 years prior to TB diagnosis. HCMV IgG levels, but not EBV or HSV, are positively correlated with the inflammatory serum marker IP10. Increased antibody avidity against the mycobacterial antigen mixture, PPD, showed a directional trend towards decreased risk of TB at early time points prior to TB diagnosis. Conclusions: Data presented in this thesis confirm that HCMV burden is high in this rural Ugandan population. Anti-mycobacterial antibody levels increase with age, suggestive of cumulative exposure to either antigenically related non-tuberculous mycobacteria (NTM) or to M.tb itself. This body of work provides more evidence that HCMV infection is associated with TB disease risk. As opposed to a simple binary seropositive measurement, I have found that risk of TB disease is associated with magnitude of HCMV IgG response.
Linguistic semantic in content analysis
Creators: name: Hogson, Matthew
Publisher: name: Zenodo
Year: 2009
Subjects: subject: semantics
subject: linguistics
subject: content analysis
subject: medicine
subject: https://iskouk.org/subjects/9OQMAHBK
subject: https://iskouk.org/subjects/7QSL3R6N
subject: https://iskouk.org/subjects/7EYIQGVX

description: The use of linguistic semantics in content analysis – the path to codification of medical prescription restrictions in the Australian Pharmaceutical Benefits Scheme (PBS)
description: Images were removed for copyright reasons.
Information geometry of density matrices and state estimation
Creators: name: Brody, Dorje C.
Publisher: name: arXiv
Year: 2010
Subjects: subject: Quantum Physics (quant-ph)
subject: High Energy Physics - Theory (hep-th)
subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: Given a pure state vector |x> and a density matrix rho, the function p(x|rho)= defines a probability density on the space of pure states parameterised by density matrices. The associated Fisher-Rao information measure is used to define a unitary invariant Riemannian metric on the space of density matrices. An alternative derivation of the metric, based on square-root density matrices and trace norms, is provided. This is applied to the problem of quantum-state estimation. In the simplest case of unitary parameter estimation, new higher-order corrections to the uncertainty relations, applicable to general mixed states, are derived.
description: published version
Self-consistent inhomogeneous steady states in Hamiltonian mean field dynamics
Creators: name: de Buyl, Pierre
name: Mukamel, David
name: Ruffo, Stefano
Publisher: name: arXiv
Year: 2010
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: Long-lived quasistationary states, associated with stationary stable solutions of the Vlasov equation, are found in systems with long-range interactions. Studies of the relaxation time in a model of $N$ globally coupled particles moving on a ring, the Hamiltonian Mean Field model (HMF), have shown that it diverges as $N^γ$ for large $N$, with $γ\simeq 1.7$ for some initial conditions with homogeneously distributed particles. We propose a method for identifying exact inhomogeneous steady states in the thermodynamic limit, based on analysing models of uncoupled particles moving in an external field. For the HMF model, we show numerically that the relaxation time of these states diverges with $N$ with the exponent $γ\simeq 1$. The method, applicable to other models with globally coupled particles, also allows an exact evaluation of the stability limit of homogeneous steady states. In some cases it provides a good approximation for the correspondence between the initial condition and the final steady state.
description: 5 pages, 4 figures, revised, accepted for publication on Phys. Rev. E