cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
title: 03_1039
Creators: name: Wesley Baldwin, John
name: Baldwin, John W.
Publisher: name: NAKALA - https://nakala.fr (Huma-Num - CNRS)
publisherIdentifier: https://ror.org/04ces3204
publisherIdentifierScheme: ROR
Year: 2018
Subjects: subject: LaMOP
subject: Laboratoire de Médiévistique Occidentale de Paris

description: L'ensemble de ces notes ont été crée par John Baldwin lors d'une de ses premières périodes de résidence à Paris. Ces documents comprennent tous les magistri qu’il avait pu rencontrer dans ses sources. Aux XIIème et XIIIème siècles, les universités n'existant pas encore, le titre de magister s'il évoque certainement une compétence n'est pas rattaché de façon systématique au passage par les écoles. De surcroît, les magistris sont le plus souvent désignés par leur seul prénom. La lecture de ces données est donc difficile et suppose un long travail pour tenter d'identifier un individu auquel on pourrait rattacher plusieurs mentions. John Baldwin avait donc renoncé à utiliser ces données pour donner un prolongement à sa magnifique étude sur les gradués d'université et leur emploi par les Capétiens et les Plantagenêts. Néanmoins, il a conservé ces données et elles sont potentiellement très utile dans le cadre de Studium, comme le sont toutes les mentions dans les volumes des Fasti Ecclesiae Gallicanae de chanoines portant ce titre de magister sans autres précisions. L'ampleur des dépouillements rend ces données très utiles et nous devons une grande reconnaissance à John Baldwin pour avoir pris la peine de faire photocopier ses fiches et de nous les avoir transmises amicalement.
Les données ainsi que les images des fiches sont accessibles sur le site Internet à l'adresse suivante : http://studium-baldwin.lamop.fr/.
Les transcriptions des fiches ont été effectuées par des étudiants de Paris 1 Panthéon - Sorbonne mais elles n'ont pas été corrigées par la suite.
description: Relation: https://lamop.hypotheses.org/
Spin relaxation in a GaAs quantum dot embedded inside a suspended phonon cavity
Creators: name: Liao, Y. Y.
name: Chen, Y. N.
name: Chuu, D. S.
name: Brandes, T.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: The phonon-induced spin relaxation in a two-dimensional quantum dot embedded inside a semiconductor slab is investigated theoretically. An enhanced relaxation rate is found due to the phonon van Hove singularities. Oppositely, a vanishing deformation potential may also result in a suppression of the spin relaxation rate. For larger quantum dots, the interplay between the spin orbit interaction and Zeeman levels causes the suppression of the relaxation at several points. Furthermore, a crossover from confined to bulk-like systems is obtained by varying the width of the slab.
description: 5 pages, 4 figures, to apper in Phys. Rev. B (2006)
title: Microstructure and texture evolution during thermo-mechanical processing of two phase titanium alloy Ti-6Al-4V
Creators: name: Perumal, Bama
Publisher: name: The Open University
Year: 2012

description: Understanding the relationship between high-temperature deformation and microstructure evolution during hot forging of aero-engine alloys is important in ensuring optimum material properties in the final component. Of particular interest, with respect to two-phase titanium alloys is the break-up, below the beta-transus temperature, of an initial transformed alpha-lamellar microstructure during thermo-mechanical processing; this plays a key role in the development of the equiaxed alpha microstructure desired for the final product. Significant research effort has been put into understanding the mechanism for dynamic globularization, formation of kinking and shear banding within the alpha lamellae that can lead to break-up, but no complete quantitative analysis of the evolution of microstructural parameters and crystallographic texture with deformation currently exists. Therefore, reliable quantitative microstructural data associated with this process is important for both informing and validating models describing high-temperature metal-forming. To investigate the influence of hot working parameters, strain, strain rate and temperature, on microstructure evolution in Ti-6Al-4V a series of hot isothermal axis-symmetric compression tests have been carried out at temperatures both low and high in the alpha + beta stability field (880°C and 950°C, respectively), using strain rates (0.01, 0.1 and 1/s) relevant to industrial press forging. The experimental results showed that the morphology of the secondary a phase transforms gradually from lamellar to equiaxed under the influence of the deformation parameters and that the a lath thickness appears to have little influence on flow behaviour. It was also found that, at lower strains, the alpha laths appeared to be undeformed or only partially distorted. As strain progressed the laths were further broken up by distortion, bending and kinking. The mean aspect ratio of the alpha laths was found to exhibit a gradual reduction with increased strain. The lath area, length and perimeter showed a tendency to decrease with increasing strain. Furthermore, orientation image mapping (by EBSD) and texture analysis (by neutron diffraction) of the alpha phase were used to study the textural evolution during the hot deformation of the specimens and the mechanism involved on development and evolution of crystallographic texture during the a-β-a phase transformation. The strengthening of the ~-phase texture is observed on heating the sample during a-β phase transformation, where it was observed that Burgers relationship was followed but no evidence of preferential transformation was detected. In contrast a definite deviation from the Burgers relationship was observed during hot-compression. During β-a phase transformation upon cooling, however, the Burgers relationship was followed, which is evidence for a texture memory effect due to the growth of the primary alpha phase present at high temperatures.
Low-energy singlet dynamics of spin-$\frac12$ kagome Heisenberg antiferromagnets
Creators: name: Syromyatnikov, A. V.
name: Maleyev, S. V.
Publisher: name: arXiv
Year: 2003
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: We give a physical picture of the low-energy sector of the spin-$\frac12$ kagome Heisenberg antiferromagnets (KAFs). It is shown that kagome lattice can be represented as a set of blocks containing 12 spins, having form of stars and arranged in a triangular lattice. Each of these stars has two degenerate singlet ground states which can be considered in terms of pseudospin-$\frac12$. It is shown using symmetry consideration that the KAF lower singlet band is made by inter-star interaction from these degenerate states. We demonstrate that this band is described by effective Hamiltonian of a magnet in the external magnetic field. The general form of this Hamiltonian is established. The Hamiltonian parameters are calculated up to the third order of perturbation theory. The ground state energy calculated in the considered model is lower than that evaluated numerically in the previous finite clusters studies. A way of experimental verification of this picture using neutron scattering is discussed. It is shown that the approach presented can not be expanded directly on KAFs with larger spin values.
description: 7 pages, 4 figures
AGRICULTURE'S CONTRIBUTION TO THE SOUTH AFRICAN ECONOMY
Creators: name: Van Zyl, J.
name: Nel, H. J. G.
name: Groenewald, J. A.
name: Van Zyl, J.
name: Nel, H. J. G.
name: Groenewald, J. A.
Publisher: name: Unknown
Year: 1988
Subjects: Agricultural and Food Policy
Political Economy

description: Agriculture's contributions to the food supply, foreign currency earnings, provision of employment, supply of raw materials to other sectors and its role as a market and contributor to the gross domestic product (GDP) will be briefly explained, followed by a discussion of the impact made on the economy as a whole by changes in production and prices in the agricultural sector. A review of selected sectoral multipliers concludes this article. Agriculture's percentage share in South Africa's economy is relatively small and is constantly dropping as the latter expands and diversifies. Agriculture's most important contribution is obviously that of providing employment. Each sector is differently affected by changes in agricultural production and prices. Another important consideration is that the overall impact of a change in agricultural production, for example as a result of drought, is almost twice as great as its direct impact, therefore confirming the strong forward and backward linkage of the agricultural sector with other sectors in the South African economy. If the multipliers are taken into account, it is clear that the agricultural industry should enjoy a high priority in the allocation of South Africa's relatively scarce available capital, especially where the provision of employment is an important aim.
The Fifth Candidate for an Intermediate-mass Black Hole in the Galactic Center
Creators: name: Takekawa, Shunya
name: Oka, Tomoharu
name: Iwata, Yuhei
name: Tsujimoto, Shiho
name: Nomura, Mariko
Publisher: name: arXiv
Year: 2020
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: We report the results of high-resolution molecular line observations of the high-velocity compact cloud HCN-0.085-0.094 with the Atacama Large Millimeter/submillimeter Array. The HCN J=4-3, HCO$^+$ J=4-3, and CS J=7-6 line images reveal that HCN-0.085-0.094 consists mainly of three small clumps with extremely broad velocity widths. Each of the three clumps has a 5.5 GHz radio continuum counterpart in its periphery toward Sgr A$^*$. The positional relationship indicates that their surfaces have been ionized by ultraviolet photons from young stars in the central cluster, suggesting the clumps are in close proximity to the Galactic nucleus. One of the three clumps has a ring-like structure with a very steep velocity gradient. This kinematical structure suggests an orbit around a point-like object with a mass of $\sim 10^4$ $M_\odot$. The absence of stellar counterparts indicates that the point-like object may be a quiescent black hole. This discovery adds another intermediate-mass black hole candidate in the central region of our Galaxy.
description: 8 pages, 4 figures, accepted for publication on the Astrophysical Journal
THE ROLE OF THE MAIZE INDUSTRY IN THE SOUTH AFRICAN ECONOMY
Creators: name: Van Zyl, J.
name: Nel, H. J. G.
name: Van Zyl, J.
name: Nel, H. J. G.
Publisher: name: Unknown
Year: 1988
Subjects: Agricultural and Food Policy
Crop Production/Industries
Political Economy

description: The role of the maize industry is discussed with reference to employment, foreign exchange earnings, food production, input provision, market segment and contribution to GDP. The impact of changes in the maize industry is quantified by means of input-output analysis and dynamic multipliers. The impact of the maize industry is insignificant relative to the total economy with regard to contribution to GDP, market for other products and input provision. Employment is the terrain of the most important impact of the maize industry.
Linking Compact Dwarf Starburst Galaxies in the RESOLVE Survey to Downsized Blue Nuggets
Creators: name: Palumbo, Michael L.
name: Kannappan, Sheila J.
name: Frazer, Elaine M.
name: Eckert, Kathleen D.
name: Norman, Dara J.
name: Fraga, Luciano
name: Quint, Bruno C.
name: Amram, Philippe
name: de Oliveira, Claudia Mendes
name: Bittner, Ashley S.
name: Moffett, Amanda J.
name: Stark, David V.
name: Norris, Mark A.
name: Cleaves, Nathaniel T.
name: Carr, Derrick S.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: We identify and characterize compact dwarf starburst (CDS) galaxies in the RESOLVE survey, a volume-limited census of galaxies in the local universe, to probe whether this population contains any residual ``blue nuggets,'' a class of intensely star-forming compact galaxies first identified at high redshift $z$. Our 50 low-$z$ CDS galaxies are defined by dwarf masses (stellar mass $M_* < 10^{9.5}$ M$_{\odot}$), compact bulged-disk or spheroid-dominated morphologies (using a quantitative criterion, $μ_Δ> 8.6$), and specific star formation rates above the defining threshold for high-$z$ blue nuggets ($\log$ SSFR [Gyr$^{-1}] > -0.5$). Across redshifts, blue nuggets exhibit three defining properties: compactness relative to contemporaneous galaxies, abundant cold gas, and formation via compaction in mergers or colliding streams. Those with halo mass below $M_{\rm halo} \sim 10^{11.5}$ M$_{\odot}$ may in theory evade permanent quenching and cyclically refuel until the present day. Selected only for compactness and starburst activity, our CDS galaxies generally have $M_{\rm halo} \lesssim 10^{11.5}$ M$_{\odot}$ and gas-to-stellar mass ratio $\gtrsim$1. Moreover, analysis of archival DECaLS photometry and new 3D spectroscopic observations for CDS galaxies reveals a high rate of photometric and kinematic disturbances suggestive of dwarf mergers. The SSFRs, surface mass densities, and number counts of CDS galaxies are compatible with theoretical and observational expectations for redshift evolution in blue nuggets. We argue that CDS galaxies represent a maximally-starbursting subset of traditional compact dwarf classes such as blue compact dwarfs and blue E/S0s. We conclude that CDS galaxies represent a low-$z$ tail of the blue nugget phenomenon formed via a moderated compaction channel that leaves open the possibility of disk regrowth and evolution into normal disk galaxies.
description: 22 pages, 13 figures. Accepted for publication in MNRAS
USA Today Poll: 1984 Pre-Presidential Election
Creators: name: USA Today
Publisher: name: Roper Center for Public Opinion Research
Year: 2022

description: Party affiliation (1); intention to vote (1); favorability of presidential candidates (4); preferred ticket (2); length of decision (1); decision commitment (1); financial situation (1); military strength (1); Congresswoman Geraldine Ferraro political views (2).
Nanophotonic quantum network node with neutral atoms and an integrated telecom interface
Creators: name: Menon, Shankar G.
name: Singh, Kevin
name: Borregaard, Johannes
name: Bernien, Hannes
Publisher: name: arXiv
Year: 2020
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: The realization of a long-distance, distributed quantum network based on quantum memory nodes that are linked by photonic channels remains an outstanding challenge. We propose a quantum network node based on neutral alkali atoms coupled to nanophotonic crystal cavities that combines a long-lived memory qubit with a photonic interface at the telecom range, thereby enabling the long-distance distribution of entanglement over low loss optical fibers. We present a novel protocol for the generation of an atom-photon entangled state which uses telecom transitions between excited states of the alkali atoms. We analyze the realistic implementation of this protocol using rubidium and cesium atoms taking into account the full atomic level structure and properties of the nanophotonic crystal cavity. We find that a high fidelity entangled state can be generated with current technologies
description: 16 pages, 6 figures
Deep Hubble Space Telescope Imaging on the Extended Ly$α$ Emission of a QSO at $z = 2.19$ with Damped Lyman Alpha System as a Natural Coronagraph
Creators: name: Ding, Jiani
name: Cai, Zheng
name: Prochaska, J. Xavier
name: Finley, H.
name: Fan, Xiaohui
name: Zheng, Zheng
name: Fathivavsari, H.
name: Petitjean, P.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: Recent observations suggest that proximate damped Ly$α$ (PDLA) systems can be used to study the host galaxies of Quasi-stellar objects (QSOs), because the PDLAs can block the bright point-spread-function (PSF) from central QSOs. Using six-orbits of narrowband imaging with $\it{HST}$/WFC3, we present the first high resolution narrowband image of the Ly$α$ emission in the PDLA trough of the QSO SDSSJ115432.67-021537.9 . We detect one major component and one minor component in the narrowband imaging. Combining the $\it{HST}$/WFC3 imaging with deep Magellan/MagE spectra, we measure that the Ly$α$ flux F$_{\rm{Lyα}}$ = 1.56$\pm0.10 \times10^{-16}$ $\rm{erg\ s^{-1}\ cm^{-2}}$, which is among the luminous ($\approx$ 2.7 L$^{\star}_{\rm{Lyα}}$) Ly$α$ emitters at $\it{z} =$ 2.19. The $\rm{Lyα}$-based star formation rate (SFR) is $\sim$ 7 $\textrm{M_{\sun} \ yr^{-1}}$. These observational results favor that the star formation from the host galaxy could be the main mechanism to power the Ly$α$ emission. This new method sheds new light on the study of the kinematic structure and the spatial distribution of the extended Ly$α$ emitting regions around the QSO host.
Big data in lean six sigma: a review and further research directions
Creators: name: Shivam Gupta
name: Modgil, Sachin
name: Angappa Gunasekaran
Publisher: name: Taylor & Francis
Year: 2020
Subjects: subject: Microbiology
subject: FOS: Biological sciences
subject: Biotechnology
subject: Immunology
subject: FOS: Clinical medicine
subject: 69999 Biological Sciences not elsewhere classified
subject: Science Policy

description: Manufacturing and service organisations improve their processes on a continuous basis to have better operational performance. They use lean six sigma (LSS) projects for process improvement. Therefore, this study aims to investigate the existing literature in LSS and the application of big data analytics (BDA) to have more confident and predictable decisions in each phase of LSS. Fifty-two articles have been identified after a careful and vigilant screening of closely related themes. Future research directions in the big data and LSS have been highlighted on the basis of organisational theories. Review presents an investigation framework consisting of BDA techniques applicable to each phase of LSS in all the dimensions such as volume, variety, velocity and veracity of big data. Review highlights the concerns of big data in LSS such as system design and integration, system performance, security and reliability of data, sustaining the control and conducting the experiments, distributed material and information flow. The review unveils the application of 8 modern organisational theories to big data in LSS with 21 key aspects of related theories and 19 distinct research gaps as opportunities for future research.
Orientation Dependence of Ferroelectric Properties of Pulsed-Laser-Ablated Bi4-xNdxTi3O12 Films
Creators: name: Garg, A.
name: Snedden, A.
name: Lightfoot, P.
name: Dawber, M.
name: Scott, J. F.
name: Barber, Z. H.
Publisher: name: arXiv
Year: 2003
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Epitaxial (001)-, (118)-, and (104)-oriented Nd-doped Bi4Ti3O12 films have been grown by pulsed-laser deposition from a Bi4-xNdxTi3O12 (x=0.85) target on SrRuO3 coated single-crystal (100)-, (110)-, and (111)-oriented SrTiO3 substrates, respectively. X-ray diffraction illustrated a unique epitaxial relationship between film and substrate for all orientations. We observed a strong dependence of ferroelectric properties on the film orientation, with no ferroelectric activity in an (001)-oriented film; a remanent polarization, 2Pr, of 12 microC/cm2 and coercive field, Ec, of 120 kV/cm in a (118)-oriented film; and 2Pr = 40 microC/cm2, Ec = 50 kV/cm in a (104)-oriented film. The lack of ferroelectric activity along the c-axis is consistent with the orthorhombic nature of the crystal structure of the bulk material, as determined by powder neutron diffraction.
description: 14 Pages, 3 Figures, Accepted by Applied Physics Letters
USA Today Poll # 9028
Creators: name: USA Today
Publisher: name: Roper Center for Public Opinion Research
Year: 2022

description: Quality of life outlook; standard of living in year 2000; Reagan Administration and nuclear war with Soviet Union; economic outlook; condition of: family life, social life, job, finances, sex life, personal health, future prospects/opportunities; family member losing job/laid-off in next year; current financial situation; local public education; New Year's resolutions: exercise, lose weight, stop smoking, cut down drinking, regular medical checkups, more balanced diet, improve family/social life, work harder, more time with family; relationships/family life: marital status, number of children have/want, single women intentionally pregnant, division of household responsibilities, who wins most arguments, managing household budget and expenses, raising children, children's effect on happiness, happiness out of marriage, remaining unmarried, divorce and standard of living, years married, working it out vs. divorce, divorce increased/decreased household responsibility/emotional burdens, emotional support from: neighbors, friends, parents, siblings, other relatives; problems of children of divorce; mother can have warm/secure relationship with children, children raised with mother at home are better; men should make career sacrifices to raise children, divorce acceptable if unhappy marriage, couples should try to stay together if have children, wife should support husband's career rather than her own career, acceptable not to marry, elderly parents moving in; athletes now/20 years ago; excitement of pro athletes good role models; paid too much/too little/ just about right; interest increased/decreased in various pro sports; AMA's proposal to ban boxing; if had enough money to maintain current style of living, continue t work/cut back hours worked/not worked at all
Marketing strategy for small diameter Douglas fir
Creators: name: Burke, Matthew
name: Draper, Shaye
Publisher: name: The University of British Columbia
Year: 2014

description: In the forest of northern British Columbia, small diameter Douglas fir trees creates several environmental problems including the interruption of mule deer grazing paths, reduction in the vigor of large diameter trees, and an increased potential for large forest fires. However, this timber creates a significant opportunity to establish a profitable wood product manufacturing facility. Due to the high logging costs, the selection of the optimal product was focused around high end, value-added products. After an analysis of all potential markets for the Douglas fir logs, an end grain product line was selected as having the largest market and price potential. The product line included a flooring system, acoustic-ceiling panels, RTA tabletops and rustic coffee tables. The target markets for these products were architects and interior designers, carpenters and finishing specialists, contractors, and homeowners. The distribution and promotional strategy for each of the four target markets are shown below. In addition, the suggested pricing information for all four products are illustrated in the figure below. [chart omitted] Disclaimer: “UBC SEEDS provides students with the opportunity to share the findings of their studies, as well as their opinions, conclusions and recommendations with the UBC community. The reader should bear in mind that this is a student project/report and is not an official document of UBC. Furthermore readers should bear in mind that these reports may not reflect the current status of activities at UBC. We urge you to contact the research persons mentioned in a report or the SEEDS Coordinator about the current status of the subject matter of a project/report.”
Theory of the splay nematic phase: Single vs. double splay
Creators: name: Rosseto, Michely P.
name: Selinger, Jonathan V.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: FOS: Physical sciences

description: Recent experiments have reported a novel splay nematic phase, which has alternating domains of positive and negative splay. To model this phase, previous studies have considered a 1D splay modulation of the director field, accompanied by a 1D modulation of polar order. When the flexoelectric coupling between splay and polar order becomes sufficiently strong, the uniform nematic state becomes unstable to the formation of a modulated phase. Here, we re-examine this theory in terms of a new approach to liquid crystal elasticity, which shows that pure splay deformation is double splay rather than planar single splay. Following that reasoning, we propose a structure with a 2D splay modulation of the director field, accompanied by a 2D modulation of polar order, and show that the 2D structure generally has a lower free energy than the 1D structure.
Dynamical Stability and Habitability of Gamma Cephei Binary-Planetary System
Creators: name: Haghighipour, Nader
Publisher: name: arXiv
Year: 2005
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: It has been suggested that the long-lived residual radial velocity variations observed in the precision radial velocity measurements of the primary of Gamma Cephei (HR8974, HD222404, HIP116727) are likely due to a Jupiter-like planet around this star (Hatzes et al, 2003). In this paper, the orbital dynamics of this plant is studied and also the possibility of the existence of a hypothetical Earth-like planet in the habitable zone of its central star is discussed. Simulations, which have been carried out for different values of the eccentricity and semimajor axis of the binary, as well as the orbital inclination of its Jupiter-like planet, expand on previous studies of this system and indicate that, for the values of the binary eccentricity smaller than 0.5, and for all values of the orbital inclination of the Jupiter-like planet ranging from 0 to 40 degrees, the orbit of this planet is stable. For larger values of the binary eccentricity, the system becomes gradually unstable. Integrations also indicate that, within this range of orbital parameters, a hypothetical Earth-like planet can have a long-term stable orbit only at distances of 0.3 to 0.8 AU from the primary star. The habitable zone of the primary, at a range of approximately 3.1 to 3.8 AU, is, however, unstable.
description: 25 pages, 7 figures, 3 tables, submitted for publication
Magnetic groundstate and Fermi surface of bcc Eu
Creators: name: Laskowski, J. Kunes R.
Publisher: name: arXiv
Year: 2004
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: Using spin-spiral technique within the full potential linearized augmented-plane-waves (LAPW) electronic structure method we investigate the magnon spectrum and Néel temperature of bcc Eu. Ground state corresponding to an incommensurate spin-spiral is obtained in agreement with experiment and previous calculations. We demonstrate that the magnetic coupling is primarily through the intra-atomic $f-s$ and $f-d$ exchange and Ruderman-Kittel-Kasuya-Yosida mechanism. We show that the existence of this spin-spiral is closely connected to a nesting feature of the Fermi surface which was not noticed before.
description: 6 pages 8 figures
Vortex States of a Superconducting Film from a Magnetic Dot Array
Creators: name: Priour, D. J.
name: Fertig, H. A.
Publisher: name: arXiv
Year: 2003
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: Using Ginzburg-Landau theory, we find novel configurations of vortices in superconducting thin films subject to the magnetic field of a magnetic dot array, with dipole moments oriented perpendicular to the film. Sufficiently strong magnets cause the formation of vortex-antivortex pairs. In most cases, the vortices are confined to dot regions, while the antivortices can form a rich variety of lattice states. We propose an experiment in which the perpendicular component of the dot dipole moments can be tuned using an in-plane magnetic field. We show that in such an experiment the vortex-antivortex pair density shows broad plateaus as a function of the dipole strength. Many of the plateaus correspond to vortex configurations which break dot lattice symmetries. In some of these states, the vortex cores are strongly distorted. Possible experimental consequences are mentioned.
description: 4 pages, 4 figures
Моделирование шумообразования специального расточного станка
Creators: name: Гогуадзе М.Г.
Publisher: name: figshare
Year: 2020
Subjects: subject: 91301 Acoustics and Noise Control (excl. Architectural Acoustics)
subject: FOS: Mechanical engineering

description: Уровни шума на рабочих местах операторов металлообрабатывающих станков зачастую превышают нормативные значения и достигают уровней звука до 90-95 дБА. Характерной особенностью данного типа станков является наличие двух одновременно работающих борштанг, предназначенных для растачивания отверстий различного диаметра. В этой статье рассмотрен процесс моделирования шумообразования специального расточного станка.
Astrometric confirmation of a wide low-mass companion to the planet host star HD89744
Creators: name: Mugrauer, M.
name: Neuhäuser, R.
name: Mazeh, T.
name: Guenther, E.
name: Fernández, M.
Publisher: name: arXiv
Year: 2004
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: In our ongoing deep infrared imaging search for faint wide secondaries of planet-candidate host stars we have confirmed astrometrically the companionship of a low-mass object to be co-moving with HD89744, a companion-candidate suggested already by Wilson et al. (2000). The derivation of the common proper motion of HD89744 and its companion, which are separated by 62.996+-0.035 arcsec, is based on about 5 year epoch difference between 2MASS and our own UKIRT/UFTI images. The companion effective temperature is about 2200 K and its mass is in the range between 0.072 and 0.081 Msun, depending on the evolutionary model. Therefore, HD89744B is either a very low mass stellar or a heavy brown dwarf companion.
description: AN accepted
Impurity and spin effects on the magneto-spectroscopy of a THz-modulated nanostructure
Creators: name: Gudmundsson, Vidar
name: Tang, Chi-Shung
name: Manolescu, Andrei
Publisher: name: arXiv
Year: 2003
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We present a grid-free DFT model appropriate to explore the time evolution of electronic states in a semiconductor nanostructure. The model can be used to investigate both the linear and the nonlinear response of the system to an external short-time perturbation in the THz regime. We use the model to study the effects of impurities on the magneto-spectroscopy of a two-dimensional electron gas in a nanostructure excited by an intense THz radiation. We do observe a reduction in the binding energy of the impurity with increasing excitation strength, and at a finite magnetic field we find a slow onset of collective spin-oscillations that can be made to vanish with a stronger excitation.
description: LaTeX,10 pages with 11 embedded postscript figures
Constant mean curvature slices in the extended Schwarzschild solution and collapse of the lapse: Part I
Creators: name: Malec, Edward
name: Murchadha, Niall Ó
Publisher: name: arXiv
Year: 2003
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We give a detailed description of the constant mean curvature foliations in the Schwarzschild solution; show that the lapse collapses exponentially, and compute the exponent.
Intense Source of Slow Positrons
Creators: name: Perez, P.
name: Rosowsky, A.
Publisher: name: arXiv
Year: 2004
Subjects: subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: We describe a novel design for an intense source of slow positrons based on pair production with a beam of electrons from a 10 MeV accelerator hitting a thin target at a low incidence angle. The positrons are collected with a set of coils adapted to the large production angle. The collection system is designed to inject the positrons in a Greaves-Surko trap [1]. Such a source could be the basis for a series of experiments in fundamental and applied research and would also be a prototype source for industrial applications which concern the field of defect characterization in the nanometer scale.
description: submitted to N.I.M. A
Beyond single-shot fault-tolerant quantum error correction
Creators: name: Delfosse, Nicolas
name: Reichardt, Ben W.
name: Svore, Krysta M.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Quantum Physics (quant-ph)
subject: Information Theory (cs.IT)
subject: FOS: Physical sciences
subject: FOS: Computer and information sciences

description: Extensive quantum error correction is necessary in order to perform a useful computation on a noisy quantum computer. Moreover, quantum error correction must be implemented based on imperfect parity check measurements that may return incorrect outcomes or inject additional faults into the qubits. To achieve fault-tolerant error correction, Shor proposed to repeat the sequence of parity check measurements until the same outcome is observed sufficiently many times. Then, one can use this information to perform error correction. A basic implementation of this fault tolerance strategy requires $Ω(r d^2)$ parity check measurements for a distance-d code defined by r parity checks. For some specific highly structured quantum codes, Bombin has shown that single-shot fault-tolerant quantum error correction is possible using only r measurements. In this work, we demonstrate that fault-tolerant quantum error correction can be achieved using $O(d \log(d))$ measurements for any code with distance $d \geq Ω(n^α)$ for some constant $α> 0$. Moreover, we prove the existence of a sub-single-shot fault-tolerant quantum error correction scheme using fewer than r measurements. In some cases, the number of parity check measurements required for fault-tolerant quantum error correction is exponentially smaller than the number of parity checks defining the code.
description: 32 pages, 11 figures
Designing audience-centered interactive voice response messages to promote cancer screenings among low-income latinas
Creators: name: Greaney, Mary L.
name: De Jesus, Maria
name: Sprunck-Harrid, Kim M.
name: Tellez, Trinidad
name: Bastani, Roshan
name: Battaglia, Tracy A.
name: Michaelson, James S.
name: Emmons, Karen M.
Publisher: name: American University
Year: 2023

description: Description to be added
Marketing strategies for commercializing the small diameter Douglas-fir
Creators: name: Yan, Echo Xiaoqian
Publisher: name: The University of British Columbia
Year: 2014

description: When considering the resources, we can find that the forestry is the most prominent mutual benefit between Canada and China. Canada, especially B.C., is abundant in wood resources and China is hungry for wood materials. So in this case, we may think of this huge market and find a new way to commercialize our small diameter Douglas-fir. The first part is introducing the background of China’s fast economy growth and booming furnishings market. Then we will reach our target market-urban middle class. After analyzing the consumers’ conditions and tastes, the third part starts the 4P’s analysis. Combining with China’s real situation, this part presents the concrete products, provides detailed information and makes feasible marketing strategies. Then the forth part lays out some pros and cons and the fifth part gives recommendations on how to implement these strategies. Finally, the timetable will be suggested. Disclaimer: “UBC SEEDS provides students with the opportunity to share the findings of their studies, as well as their opinions, conclusions and recommendations with the UBC community. The reader should bear in mind that this is a student project/report and is not an official document of UBC. Furthermore readers should bear in mind that these reports may not reflect the current status of activities at UBC. We urge you to contact the research persons mentioned in a report or the SEEDS Coordinator about the current status of the subject matter of a project/report.”
Designing audience-centered interactive voice response messages to promote cancer screenings among low-income latinas
Creators: name: Greaney, Mary L.
name: De Jesus, Maria
name: Sprunck-Harrid, Kim M.
name: Tellez, Trinidad
name: Bastani, Roshan
name: Battaglia, Tracy A.
name: Michaelson, James S.
name: Emmons, Karen M.
Publisher: name: Centers for Disease Control and Prevention
Year: 2023
Subjects: classificationCode: 4206
subject: Public health

description: Description to be added
Early thermalization and shear viscosity to entropy ratio in heavy-ion collisions at energies of BES, FAIR and NICA
Creators: name: Zabrodin, E.
name: Bravina, L.
name: Teslyk, M.
name: Vitiuk, O.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Nuclear Theory (nucl-th)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: Nuclear Experiment (nucl-ex)
subject: FOS: Physical sciences

description: Equilibration of highly excited baryon-rich matter is studied within the microscopic model calculations in A+A collisions at energies of BES, FAIR and NICA. It is shown that the system evolution from the very beginning of the collision can be approximated by relativistic hydrodynamics, although the hot and dense nuclear matter is not in local equilibrium yet. During the evolution of the fireball the extracted values of energy density, net baryon and net strangeness densities are used as an input to Statistical Model (SM) in order to calculate temperature $T$, chemical potentials $μ_B$ and $μ_S$, and entropy density $s$ of the system. Also, they are used as an input for the box with periodic boundary conditions to investigate the momentum correlators in the infinite nuclear matter. Shear viscosity $η$ is calculated according to the Green-Kubo formalism. At all energies, shear viscosity to entropy density ratio shows minimum at time corresponding to maximum baryon density. The ratio dependence on $T, μ_B, μ_S$ is investigated for both in- and out of equilibrium cases.
description: Proceedings of Quark Matter 2019 - the XXVIIIth International Conference on Ultra-relativistic Nucleus-Nucleus Collisions
Discriminating Majorana and Dirac heavy neutrinos at lepton colliders
Creators: name: Mękała, Krzysztof
name: Reuter, Jürgen
name: Żarnecki, Aleksander Filip
Publisher: name: Deutsches Elektronen-Synchrotron, DESY, Hamburg
Year: 2023

description: In this paper we investigate how well the nature of heavy neutral leptons can be determined at a future lepton collider, after its potential discovery. Considered in a simplified model are prompt decays of the neutrino in the mass range from 100 GeV to 10 TeV. We study event selection and application of multivariate analyses to determine whether such a newly discovered particle is of the Dirac or Majorana nature. Combining lepton charge and kinematic event variables, we find that the nature of a heavy neutrino, whether it is a Dirac or a Majorana particle, can be determined at 95% C.L. almost in the whole discovery range. We will briefly speculate about other than the studied channels and the robustness of this statement in more general models of heavy neutral leptons, particularly on the complementarity of high-energy electron-positron vs. muon colliders on resolving the flavor structure of heavy neutrinos.
Baking Alaska
Creators: name: Barber, Kari
name: Maher, Brigid
name: Fish, Sarah Menke
Publisher: name: American University (Washington, D.C.)
Year: 2023
Subjects: classificationCode: 3605
subject: Screen and digital media

description: Two southern sisters in their 50s leave behind their jobs and lives to chase a dream of opening a bakery in Alaska after their father's death.
Saturable Absorber, Coherent Population Oscillations, and "Slow Light"
Creators: name: Zapasskii, V. S.
name: Kozlov, G. G.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Optics (physics.optics)
subject: Atomic Physics (physics.atom-ph)
subject: FOS: Physical sciences

description: The paper presents a critical analysis of publications devoted to one of the methods for production of the so-called "slow light" (the light with an anomalously low group velocity) due to extremely high local steepness of the dispersion curve of the medium. The method in point employs for this purpose the effect of coherent population oscillations accompanied by burning of a narrow spectral hole in the homogeneously broadened absorption spectrum. Physical model of the effect proposed in the studies under consideration is based on analysis of response of a nonlinear medium to a low-frequency intensity modulation of the incident light beam. We show that all the observations described in these papers can be easily interpreted in the framework of the simplest model of saturable absorber and have nothing to do with the effects of hole burning and group velocity reduction.
description: 9 pages, 4 figures
Riesz Basis in de Branges Spaces of Entire Functions
Creators: name: Al-Sa'di, Sa'ud
name: Obiedat, Hamed M.
Publisher: name: figshare
Year: 2022
Subjects: subject: 10111 Real and Complex Functions (incl. Several Variables)
subject: FOS: Mathematics

description: In this paper we consider the problem of Riesz basis in de Branges spaces of entire functions H(E) with the condition that ϕ'(x) ≥ α > 0, where ϕ is the corresponding phase function. We are concerned with the sets of real numbers {λn} such that the normalized reproducing kernels k(λn, .)/||k(λn, .)|| satisfies the restricted isometry property, which in turn constitute a Riesz basis in H(E). Then we give a criterion on stability of reproducing kernels corresponding to real points which form a Riesz basis in H(E) with respect to small perturbations, which generalize some well-known Riesz basis perturbation results in the Paley-Wiener space.
title: In search of visibility: The ethical tensions in the production of humanitarian photography
Creators: name: Nissinen, Sanna Maarit
Publisher: name: The Open University
Year: 2012

description: For humanitarian organisations that use photography as their major medium of communication the visual portrayal of suffering remains an issue surrounded with controversy and sensitivity. Despite the adoption of regulatory codes and protective protocols by non-governmental -organisations, the criticism which has circulated during the past three decades still remains, directed at NGOs. media and-photographers by academics and audiences, over the production of formulaic and stereotypical imagery with accusations of subjugating populations of the global South. The main tension in this form of imaging is how vulnerablee populations can be portrayed in ways that do not infringe on dignity, yet meet the need for effective NGO visibility and fundraising communications in the image-saturated media landscape. Little primary data exists on how ethical behaviour in this type -of imaging is understood by its producers and how principles of ethics guide ,the processes and practices in tbe field. This thesis explores a way to redress this gap in Understanding by exploring the photographic representation of humanitarian subjects from the perspective of their production. The research draws on four humanitarian pbotographic assignments in Bangladesh supported by interviews with the social actors involved in the production of NGO visual communications. The ethnographic accounts of the experiences of the author as researcher and photographer point to complex production processes and practices that are imbued with continual ethical considerations framing the interactions of image-making. The findings emphasise the capacity,of the so called victims to negotiate and represent themselves and draws into question the regulatory claims of ensuring the protection and rights of photographic subjects. The findings reveal highly complex, if not haphazard, processes that evolve through situations in the field and the context of assignments, which complicates interpretation and realisation of this type of regulation as operational strategy.
The Role of Extrinsic Cues in Metamemory Illusions
Creators: name: Tatz, Joshua R.
Publisher: name: American University
Year: 2023

description: Koriat’s (1997) cue-utilization framework holds that judgments of learning (JOLs) are based on separate contributions from intrinsic (pertaining to a study item) and extrinsic (pertaining to features outside a study item) cues. To date, varying physical features of to-be-remembered words such as size (Rhodes & Castel, 2008) or blur (Yue, Castel, & Bjork, 2013)—which are intrinsic cues—has produced illusions in which one type of word receives higher JOLs without being recalled better. The role of similar manipulations to context—which are extrinsic cues—has not yet been evaluated. The purpose of this study was to explore how these cues would influence JOLs. In Experiment 1, participants studied and gave JOLs for words that varied in size (intrinsic cues) surrounded by task-irrelevant, colored frames that also varied in size (extrinsic cues). In Experiment 2, participants did the same for words that varied in their degree of blur (intrinsic cues) surrounded by task-irrelevant, nature scenes that also varied in their degree of blur (extrinsic cues). Thus, these extrinsic cues provided context for the intrinsic cues. The typical JOL illusions were replicated with intrinsic cues, but they were unusually small. Also, a JOL illusion emerged with the extrinsic cue manipulation in Experiment 2, but not in Experiment 1, possibly because the extrinsic cues in Experiment 2 were more salient with the inclusion of nature scenes rather than solid colors (Castel, 2008). Moreover, Experiments 3a and 3b suggested that it was the inclusion of extrinsic cue manipulations in Experiments 1 and 2 which reduced the illusions based on intrinsic cue manipulations. These results suggest that extrinsic cues may indirectly affect JOLs by influencing participants’ use of intrinsic cues. This finding is not fully explainable by the current cue-utilization framework (Koriat, 1997).
The Role of Extrinsic Cues in Metamemory Illusions
Creators: name: Tatz, Joshua R.
Publisher: name: ProQuest
Year: 2023
Subjects: classificationCode: 52
subject: Psychology
subject: FOS: Psychology
classificationCode: 5204
subject: Cognitive and computational psychology

description: Koriat’s (1997) cue-utilization framework holds that judgments of learning (JOLs) are based on separate contributions from intrinsic (pertaining to a study item) and extrinsic (pertaining to features outside a study item) cues. To date, varying physical features of to-be-remembered words such as size (Rhodes & Castel, 2008) or blur (Yue, Castel, & Bjork, 2013)—which are intrinsic cues—has produced illusions in which one type of word receives higher JOLs without being recalled better. The role of similar manipulations to context—which are extrinsic cues—has not yet been evaluated. The purpose of this study was to explore how these cues would influence JOLs. In Experiment 1, participants studied and gave JOLs for words that varied in size (intrinsic cues) surrounded by task-irrelevant, colored frames that also varied in size (extrinsic cues). In Experiment 2, participants did the same for words that varied in their degree of blur (intrinsic cues) surrounded by task-irrelevant, nature scenes that also varied in their degree of blur (extrinsic cues). Thus, these extrinsic cues provided context for the intrinsic cues. The typical JOL illusions were replicated with intrinsic cues, but they were unusually small. Also, a JOL illusion emerged with the extrinsic cue manipulation in Experiment 2, but not in Experiment 1, possibly because the extrinsic cues in Experiment 2 were more salient with the inclusion of nature scenes rather than solid colors (Castel, 2008). Moreover, Experiments 3a and 3b suggested that it was the inclusion of extrinsic cue manipulations in Experiments 1 and 2 which reduced the illusions based on intrinsic cue manipulations. These results suggest that extrinsic cues may indirectly affect JOLs by influencing participants’ use of intrinsic cues. This finding is not fully explainable by the current cue-utilization framework (Koriat, 1997).