cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Dark states of single NV centers in diamond unraveled by single shot NMR
Creators: name: Waldherr, G.
name: Beck, J.
name: Steiner, M.
name: Neumann, P.
name: Gali, A.
name: Frauenheim, Th.
name: Jelezko, F.
name: Wrachtrup, J.
Publisher: name: arXiv
Year: 2010
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: The nitrogen-vacancy (NV) center in diamond is supposed to be a building block for quantum computing and nanometer scale metrology at ambient conditions. Therefore, precise knowledge of its quantum states is crucial. Here, we experimentally show that under usual operating conditions the NV exists in an equilibrium of two charge states (70% in the expected negative (NV-) and 30% in the neutral one (NV0)). Projective quantum non-demolition measurement of the nitrogen nuclear spin enables the detection even of the additional, optically inactive state. The nuclear spin can be coherently driven also in NV0 (T1 ~ 90 ms and T2 ~ 6 micro-s).
description: 4 pages, 3 figures
Scaling laws for precision in quantum interferometry and bifurcation landscape of optimal state
Creators: name: Knysh, Sergey
name: Smelyanskiy, Vadim N.
name: Durkin, Gabriel A.
Publisher: name: arXiv
Year: 2010
Subjects: subject: Quantum Physics (quant-ph)
subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: Phase precision in optimal 2-channel quantum interferometry is studied in the limit of large photon number $N\gg 1$, for losses occurring in either one or both channels. For losses in one channel an optimal state undergoes an intriguing sequence of local bifurcations as the losses or the number of photons increase. We further show that fixing the loss paramater determines a scale for quantum metrology -- a crossover value of the photon number $N_c$ beyond which the supra-classical precision is progressively lost. For large losses the optimal state also has a different structure from those considered previously.
description: 4 pages, 3 figures, v3 is modified in response to referee comments
Carnegie-Myrdal Study, Names of People Mentioned in Interviews, Denver, San Francisco and Los Angeles, March 1940
Creators: name: Carnegie Corporation Of New York
Publisher: name: Columbia University
Year: 2019
Subjects: Race relations
African Americans--Social conditions
Endowments

description: Complete list of people mentioned in interviews conducted by the Carnegie-Myrdal Study in Denver, San Francisco and Los Angeles in March 1940.
The center of pure complex braid groups
Creators: name: Digne, François
name: Marin, Ivan
name: Michel, Jean
Publisher: name: arXiv
Year: 2011
Subjects: subject: Group Theory (math.GR)
subject: FOS: Mathematics

description: Broué, Malle and Rouquier conjectured in that the center of the pure braid group of an irreducible finite complex reflection group is cyclic. We prove this conjecture, for the remaining exceptional types, using the analogous result for the full braid group due to Bessis, and we actually prove the stronger statement that any finite index subgroup of such braid group has cyclic center.
Memorandum from Charles Dollard to Frederick P. Keppel, November 29, 1940
Creators: name: Dollard, Charles, 1907-1977
Publisher: name: Columbia University
Year: 2019
Subjects: Race relations
African Americans--Social conditions
Endowments

description: Items to discuss at an upcoming meeting with Samuel A. Stouffer regarding Gunnar Myrdal's return from Sweden and the completion of the Carnegie-Myrdal Study.
The Professional Partnership: An Alternative Paradigm for University Governance
Creators: name: Edwards, Nancy
Publisher: name: Karlsruhe
Year: 2014

description: The chief contribution of the dissertation is the proposal of an alternative model for university governance reform; namely, the professional partnership. To this end, a solid theoretical foundation is provided to support the propositions that the profession, as institution, and the partnership, as organizational form, have unique governance characteristics that are more effective for knowledge-intensive organizations, such as universities, than the corporate model of governance.
D7.3 Report on how to create common European in-pipe defect scenarios
Creators: name: Tait, Simon
name: Brüggeemann, Thomas
Publisher: name: Zenodo
Year: 2023
Subjects: Joint Research Activities
Assets Management
Co-UDlabs

description: This document is Deliverable 7.3 of the Co-UDlabs project, funded under the European Union’s Horizon 2020 research and innovation programme and under Grant Agreement No 101008626. This report is aimed at academic researchers, water utility engineers and R&D engineers in the pipe repair supply chain who need to (i) understand the impact of defects on pipe performance, and (ii) to provide evidence on the effectiveness and robustness of different in-pipe repair technologies. In-pipe defect surrogates have been employed in academic research studies and applied research studies that have been used to develop in-pipe repair technologies (e.g. cured-in-place-pipe pipe repair systems) and validate then to objectively measure the performance of different repair technologies. This allows water utilities to make evidence based decisions on what repair technology to adopt. Suitable in-pipe defect surrogates are also required in the development of emerging in-pipe inspection technologies. This report describes a range of in-pipe surrogate defects that are mapped against the EN 13508-2, which is the EN that is widely used in Europe to characterise the range of specific defects commonly found in sewers and urban drainage systems. The report describes how surrogate defects are mapped against EN 13508-2 defect codes. The development of the surrogate defects has involved significant technical input from water utilities, to ensure acceptance of the laboratory defects as effective surrogates for similar defects observed in real sewer and drainage pipes. The report also describes how the laboratory defects can be manufactured so allowing laboratories to manufacture consistent defects that have been accep0ted by water utilities as being appropriate surrogates for typical in-pipe defects that have been mapped onto the most widely accepted defect coding system. The report offers advice to laboratories about how to select defects from this report, with a strong emphasis that any study needs to clarify its aim so that a suitable laboratory surrogate defect is selected for each study.
Layered Modeling and Simulation of Complex Biotechnological Processes - Optimizing Rhamnolipid Production by Pseudomonas aeruginosa during Cultivation in a Bioreactor
Creators: name: Henkel, Marius
Publisher: name: Karlsruhe
Year: 2014
Subjects: Layered Modeling
Rhamnolipid
Pseudomonas aeruginosa

description: In this thesis, a model for the regulation of rhamnolipid production and data obtained from metabolic balancing were combined with a process model on a bioreactor scale. The model was used to derive an optimized process control stategy for enhanced product formation. This thesis provides a missing piece in a puzzle for knowledge-based strategies for enhanced rhamnolipid formation.
Dynamical decoupling noise spectroscopy
Creators: name: Alvarez, Gonzalo A.
name: Suter, Dieter
Publisher: name: arXiv
Year: 2011
Subjects: subject: Quantum Physics (quant-ph)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Chemical Physics (physics.chem-ph)
subject: FOS: Physical sciences

description: Decoherence is one of the most important obstacles that must be overcome in quantum information processing. It depends on the qubit-environment coupling strength, but also on the spectral composition of the noise generated by the environment. If the spectral density is known, fighting the effect of decoherence can be made more effective. Applying sequences of inversion pulses to the qubit system, we generate effective filter functions that probe the environmental spectral density. Comparing different pulse sequences, we recover the complete spectral density function and distinguish different contributions to the overall decoherence.
description: 4+ pages, 3 figures. New experimental data was added. New references added
Letter from Robertson D. Ward to Samuel A. Stouffer, December 17, 1940
Creators: name: Ward, Robertson Dwight 1905-
Publisher: name: Columbia University
Year: 2019
Subjects: Race relations
African Americans--Social conditions
Endowments

description: Letter from Carnegie Corporation Treasurer Robertson D. Ward enclosed with check for Samuel A. Stouffer's work on the Carnegie-Myrdal Study.
Theory of carrier concentration-dependent electronic behavior in layered cobaltates
Creators: name: Li, H.
name: Clay, R. T.
name: Mazumdar, S.
Publisher: name: arXiv
Year: 2010
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: A natural explanation for the carrier concentration-dependent electronic behavior in the layered cobaltates emerges within correlated-electron Hamiltonians with finite on-site and significant nearest neighbor hole-hole Coulomb repulsions. The nearest neighbor repulsion decreases hole double-occupancy below hole density 1/3, but increases the same at higher hole densities. Our conclusion is valid for both single-band and three-band extended Hubbard Hamiltonians, and sheds light on concentration-dependent $e_g^\prime$ hole occupancy within the latter.
description: 4 pages, 4 figures
Precision studies of Casimir force and short-range gravity employing prototypes of interferometric gravitational wave detectors
Creators: name: Rajalakshmi, G.
name: Unnikrishnan, C. S.
Publisher: name: arXiv
Year: 2010
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Experiment (hep-ex)
subject: Atomic Physics (physics.atom-ph)
subject: FOS: Physical sciences

description: We discuss experimental schemes to measure the Casimir force and short range forces from hypothetical modified gravity with unprecedented sensitivity using highly sensitive prototype gravitational wave detectors as displacement sensors. The finite temperature effects of the Casimir force would be detectable with a sensitivity of better than 1% for separation exceeding 30 microns. Constraints on short range modifications to gravity can be improved in the distance range of 10-100 microns.
description: 13 pages, 6 Figures, accepted in CQG
Transverse Beam Spin Asymmetries at Backward Angles in Elastic Electron-Proton and Quasi-elastic Electron-Deuteron Scattering
Creators: name: The G0 Collaboration
name: Androić, D.
name: Armstrong, D. S.
name: Arvieux, J.
name: Bailey, S. L.
name: Beck, D. H.
name: Beise, E. J.
name: Benesch, J.
name: Benmokhtar, F.
name: Bimbot, L.
name: Birchall, J.
name: Bosted, P.
name: Breuer, H.
name: Capuano, C. L.
name: Chao, Y. -C.
name: Coppens, A.
name: Davis, C. A.
name: Ellis, C.
name: Flores, G.
name: Franklin, G.
name: Furget, C.
name: Gaskell, D.
name: Gericke, M. T. W.
name: Grames, J.
name: Guillard, G.
name: Hansknecht, J.
name: Horn, T.
name: Jones, M. K.
name: King, P. M.
name: Korsch, W.
name: Kox, S.
name: Lee, L.
name: Liu, J.
name: Lung, A.
name: Mammei, J.
name: Martin, J. W.
name: McKeown, R. D.
name: Micherdzinska, A.
name: Mihovilovic, M.
name: Mkrtchyan, H.
name: Muether, M.
name: Page, S. A.
name: Papavassiliou, V.
name: Pate, S. F.
name: Phillips, 10 S. K.
name: Pillot, P.
name: Pitt, M. L.
name: Poelker, M.
name: Quinn, B.
name: Ramsay, W. D.
name: Real, J. -S.
name: Roche, J.
name: Roos, P.
name: Schaub, J.
name: Seva, T.
name: Simicevic, N.
name: Smith, G. R.
name: Spayde, D. T.
name: Stutzman, M.
name: Suleiman, R.
name: Tadevosyan, V.
name: van Oers, W. T. H.
name: Versteegen, M.
name: Voutier, E.
name: Vulcan, W.
name: Wells, S. P.
name: Williamson, S. E.
name: Wood, S. A.
name: Pasquini, B.
name: Vanderhaeghen, M.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Nuclear Experiment (nucl-ex)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: We have measured the beam-normal single-spin asymmetries in elastic scattering of transversely polarized electrons from the proton, and performed the first measurement in quasi-elastic scattering on the deuteron, at backward angles (lab scattering angle of 108 degrees) for Q2 = 0.22 GeV^2/c^2 and 0.63 GeV^2/c^2 at beam energies of 362 MeV and 687 MeV, respectively. The asymmetry arises due to the imaginary part of the interference of the two-photon exchange amplitude with that of single photon exchange. Results for the proton are consistent with a model calculation which includes inelastic intermediate hadronic (piN) states. An estimate of the beam-normal single-spin asymmetry for the scattering from the neutron is made using a quasi-static deuterium approximation, and is also in agreement with theory.
title: Патофизиологические особенности основных видов клинической манифестации ОРВИ, вызванной новым вирусом SARS-CoV-2
Creators: name: Кучерина, Александра
Publisher: name: Новгородский государственный университет имени Ярослава Мудрого (НовГУ)
Year: 2021

description: В статье рассматривается статистическая структура распределения поражения дыхательных путей при новой коронавирусной инфекции, а также распределение имеющихся типов поражения по полу. Приводится патогенетическое обоснование клинической картины острого поражения верхних и нижних дыхательных путей вирусом SARS-CoV-2, дается патогенетическое обоснование различий типов и степеней поражения между мужчинами и женщинами.
In-situ Oberflächenplasmonenresonanzmessungen elektrochemischer Prozesse
Creators: name: Timm, Axel Eric
Publisher: name: Karlsruhe
Year: 2014
Subjects: Adsorption (Sulfat)
Elektrochemische Metallabscheidung (Kupfer)
Oberflächenplasmonen
Phasenumwandlung (SDS)
Unterpotenzialabscheidung (Kupfer)

description: In dieser Arbeit soll eine für elektrochemische Systeme vergleichsweise selten angewandte Methode - die Anregung von Oberflächenplasmonen - genutzt werden, um Aussagen über die bei elektrochemischen Prozessen beteiligten Spezies und deren Oberflächenkonzentrationen bzw. Bedeckungen zu gewinnen.
Es wurden der potenzialinduzierte Phasenübergang zweier Adsorbatstrukturen von Dodecylsulfat, die potenzialgesteuerte Sulfat-Adsorption sowie die Unterpotenzialabscheidung von Kupfer auf Gold untersucht.
Indización Temática de documentos LILACS 2023: DeCS/MeSH: actualización de la edición
Creators: name: Rio Branco, Luciana Beatriz Piovezan
Publisher: name: Zenodo
Year: 2023
Subjects: subject: Cabeçalhos de Assunto em Medicina
subject: Descriptores de assunto
subject: Capacitación Profesional
subject: Metodología LILACS
subject: https://decs.bvsalud.org/ths/resource/?id=56243&filter=ths_termall&q=lilacs
subject: https://decs.bvsalud.org/ths/resource/?id=51554&filter=ths_termall&q=capacita%C3%A7%C3%A3o
subject: https://decs.bvsalud.org/ths/resource/?id=29599&filter=ths_termall&q=Desarrollo%20de%20Personal
subject: https://decs.bvsalud.org/ths/resource/?id=38905&filter=ths_termall&q=DECS

description: Sesión virtual sobre Indización de documentos según Metodología LILACS (2023) 27 de abril de 2023 Objetivo: proporcionar conocimientos y habilidades para el uso eficiente de la herramienta DeCS/MeSH (Vocabulario controlado en el aréa Salud) en la investigación bibliográfica y en la indización temática de los documentos. DeCS/MeSH: actualización de la edición 2023 Apertura: Sueli Mitiko Yano Suga Ponente: Luciana Beatriz Piovezan Rio Branco Grabación: https://youtu.be/_0DH5KRv_4g Complemento de esta presentación por: Sueli Mitiko Yano Suga
 Descriptores DeCS/MesH 2023 destacados para uso en la indización temática - DOI: 10.5281/zenodo.7876384 Toda la documentación disponible en: https://lilacs.bvsalud.org/es/sesiones-virtuales-lilacs/indizacion-de-documentos-segun-la-metodologia-lilacs-2023/ Organizadora: Laís Silva Sueli Mitiko Yaho Suga BIREME/OPAS/OMS
description: {"references": ["https://lilacs.bvsalud.org/es/sesiones-virtuales-lilacs/indizacion-de-documentos-segun-la-metodologia-lilacs-2023/"]}
Multidimensional hydrodynamic simulations of the hydrogen injection flash
Creators: name: Mocak, Miroslav
name: Siess, Lionel
name: Muller, Ewald
Publisher: name: arXiv
Year: 2011
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: The injection of hydrogen into the convection shell powered by helium burning during the core helium flash is commonly encountered during the evolution of metal-free and extremely metal-poor low-mass stars. With specifically designed multidimensional hydrodynamic simulations, we aim to prove that an entropy barrier is no obstacle for the growth of the helium-burning shell convection zone in the helium core of a metal-rich Pop I star, i.e. convection can penetrate into the hydrogen-rich layers for these stars, too. We further study whether this is also possible in one-dimensional stellar evolutionary calculations. Our hydrodynamical simulations show that the helium-burning shell convection zone in the helium core moves across the entropy barrier and reaches the hydrogen-rich layers. This leads to mixing of protons into the hotter layers of the core and to a rapid increase of the nuclear energy production at the upper edge of the helium-burning convection shell - the hydrogen injection flash. As a result a second convection zone appears in the hydrogen-rich layers. Contrary to 1D models, the entropy barrier separating the two convective shells from each other is largely permeable to chemical transport when allowing for multidimensional flow, and consequently, hydrogen is continuously mixed deep into the helium core. We find it difficult to achieve such a behavior in one-dimensional stellar evolutionary calculations.
description: 8 pages, 8 figures - accepted for publication in Astronomy and Astrophysics. Animations related to the manuscript can be downloaded from http://www-astro.ulb.ac.be/~mocak/index.php/Main/AnimationsHeFlash
Partielle Nitritation / Anammox bei niedrigen Temperaturen
Creators: name: Gilbert, Eva Marianne
Publisher: name: Karlsruhe
Year: 2014

description: Die Kombination aus Partieller Nitritation und Anammox (PNA) ist eine neuartige Methode zur biologischen Stickstoffelimination aus Abwasser. Im Rahmen dieser Promotion wurde die prinzipielle Eignung verschiedener Reaktorsysteme und Biomasse unterschiedlicher Größen-Ausprägungen für den Einsatz von PNA bei niedrigen Temperaturen untersucht.
Letter from Gunnar Myrdal to Frederick P. Keppel, November 5, 1940
Creators: name: Myrdal, Gunnar, 1898-1987
Publisher: name: Columbia University
Year: 2019
Subjects: Race relations
African Americans--Social conditions
Endowments

description: Gunnar Myrdal writes to inform Frederick P. Keppel of his plans to return to the United States from Sweden in January 1941 to continue his work on the Carnegie-Myrdal Study.
Bruch von Proteinkristallen im mechanischen Trennprozess
Creators: name: Cornehl, Bianca
Publisher: name: Karlsruhe
Year: 2014
Subjects: Proteinkristallisation
Fest-Flüssig-Trennung
Kristallbruch

description: Die vorliegende Arbeit befasst sich mit dem Bruch von Proteinkristallen in mechanischen Trennverfahren. Die Besonderheit von Proteinkristallen ist, dass diese schon bei geringen mechanischen Belastungen brechen können. In mechanischen Trennverfahren führt Kristallbruch zu einer schlechteren Abtrennbarkeit. Wesentliche Erkenntnis der vorliegenden Arbeit ist, dass Kristallbruch bei Proteinkristallen schon bei geringen Belastungen auftritt und einen Einfluss auf die Abtrennleistung hat.
Entwicklung und Anwendung neuer NMR-Methoden: Orientierungsmedien zur Strukturbestimmung mit anisotropen Parametern und Metabonomics
Creators: name: Büchler, Silke
Publisher: name: Karlsruhe
Year: 2014
Subjects: Metabonomics
anisotrope NMR Parameter

description: Das Ziel dieser Arbeit war die Entwicklung und Anwendung neuer Orientierungsmedien zur Strukturbestimmung mit anisotropen Parametern, sowie die Etablierung von Metabonomics-Studien an Flüssigzellkulturen und Reispflanzen.
Das Verhältnis zwischen professioneller Sozialer Arbeit und Laienbehördentätigkeit in der wirtschaftlichen Sozialhilfe des Kantons Zürich: Eine qualitativ-empirische Analyse
Creators: name: Nievergelt, Fabian
Publisher: name: Zenodo
Year: 2021

description: Die Sozialhilfe in der Schweiz gerät regelmässig in politische Kontroversen und unter Legitimationsdruck. Ausgehend von der These, dass der Grund dafür in der Verflechtung zwischen Politik und Sozialhilfe auf der Kommunalebene zu suchen ist, wird die Frage aufgeworfen, wie Sozialarbeitende und Laienbehördenmitglieder im Kanton Zürich ihre Zusammenarbeit wahrnehmen und welche Auswirkungen diese auf die Tätigkeit der Sozialarbeitenden bzw. das Arbeitsfeld der Sozialhilfe hat. In theoretischer Betrachtung werden dazu Bezüge zum Professionalisierungsdiskurs Sozialer Arbeit, zum Habitus- und Feldkonzept Bourdieus sowie zur Rollentheorie hergestellt. Im empirischen Teil wurden vier Gruppendiskussionen mit Sozialarbeitenden bzw. Laienbehördenmitgliedern durchgeführt und nach der inhaltlich strukturierenden qualitativen Inhaltsanalyse ausgewertet. Die Ergebnisse der Untersuchung zeigen eine funktionierende Zusammenarbeit, welche durch Ambivalenzen geprägt ist. Zentrale Themen sind Kämpfe um Zuständigkeit und Deutungshoheit sowie die fragliche Legitimation von Laienbehörden in der Sozialhilfe. In der Folge werden deren Abschaffung sowie ein durch den Autor konstatierter grundlegender Reformbedarf in der Sozialhilfe diskutiert.
description: + Code Diss LU: hslusa masa + Fussnote: Master of Science in Sozialer Arbeit, Bern, Luzern, St. Gallen, 2021 + NL-Code: NLLUHSA202109
Letter from Gunnar Myrdal to Charles Dollard, November 5, 1940
Creators: name: Myrdal, Gunnar, 1898-1987
Publisher: name: Columbia University
Year: 2019
Subjects: Race relations
African Americans--Social conditions
Endowments

description: Gunnar Myrdal writes to confirm his return to the United States from Sweden to complete his work on the Carnegie-Myrdal Study and to inquire on the review status of Alva Myrdal's manuscript for "Kontakt mit Amerika."
Bounds for coefficients of cusp forms and extremal lattices
Creators: name: Jenkins, Paul
name: Rouse, Jeremy
Publisher: name: arXiv
Year: 2010
Subjects: subject: Number Theory (math.NT)
subject: FOS: Mathematics
subject: Primary 11F30, Secondary 11E45

description: A cusp form $f(z)$ of weight $k$ for $\SL_{2}(\Z)$ is determined uniquely by its first $\ell := \dim S_{k}$ Fourier coefficients. We derive an explicit bound on the $n$th coefficient of $f$ in terms of its first $\ell$ coefficients. We use this result to study the non-negativity of the coefficients of the unique modular form of weight $k$ with Fourier expansion \[F_{k,0}(z) = 1 + O(q^{\ell + 1}).\] In particular, we show that $k = 81632$ is the largest weight for which all the coefficients of $F_{0,k}(z)$ are non-negative. This result has applications to the theory of extremal lattices.
description: To appear in Bulletin of the London Mathematical Society
Structure of semisimple Hopf algebras of dimension $p^2q^2$
Creators: name: Dong, Jingcheng
Publisher: name: arXiv
Year: 2010
Subjects: subject: Rings and Algebras (math.RA)
subject: Quantum Algebra (math.QA)
subject: FOS: Mathematics
subject: 16T05

description: Let $p,q$ be prime numbers with $p^4
description: 11pages, to appear in Communications in Algebra
A Single Degenerate Progenitor Model for Type Ia Supernovae Highly Exceeding the Chandrasekhar Mass Limit
Creators: name: Hachisu, Izumi
name: Kato, Mariko
name: Saio, Hideyuki
name: Nomoto, Ken'ichi
Publisher: name: arXiv
Year: 2011
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: Recent observations of Type Ia supernovae (SNe Ia) suggest that some of the progenitor white dwarfs (WDs) had masses up to 2.4-2.8 M_sun, highly exceeding the Chandrasekhar mass limit. We present a new single degenerate (SD) model for SN Ia progenitors, in which the WD mass possibly reaches 2.3-2.7 M_sun. Three binary evolution processes are incorporated; optically thick winds from mass-accreting WDs, mass-stripping from the binary companion star by the WD winds, and WDs being supported by differential rotation. The WD mass can increase by accretion up to 2.3 (2.7) M_sun from the initial value of 1.1 (1.2) M_sun, being consistent with high luminosity SNe Ia such as SN 2003fg, SN 2006gz, SN 2007if, and SN 2009dc. There are three characteristic mass ranges of exploding WDs. In an extreme massive case, differentially rotating WDs explode as an SN Ia soon after the WD mass exceeds 2.4 M_sun because of a secular instability at T/|W|\sim 0.14. For a mid mass range of M_WD=1.5-2.4 M_sun, it takes some time (spinning-down time) until carbon is ignited to induce an SN Ia explosion after the WD mass has reached maximum, because it needs a loss or redistribution of angular momentum. For a lower mass case of rigidly rotating WDs, M_WD=1.38-1.5 M_sun, the spinning-down time depends on the timescale of angular momentum loss from the WD. The difference in the spinning-down time may produce the "prompt" and "tardy" components. We also suggest the very bright super-Chandrasekhar mass SNe Ia are born in a low metallicity environment.
description: 14 pages, 8 figures, to appear in ApJ, accepted version (accepted on 12th Sep 2011)
Development of a Lateral Flow Immunoassay (LFIA) to Screen for the Release of the Endocrine Disruptor Bisphenol A from Polymer Materials and Products
Creators: name: Raysyan, Anna
name: Schneider, Rudolf J.
Publisher: name: Humboldt-Universität zu Berlin
Year: 2021
Subjects: subject: LFIA
subject: immunoassay
subject: bisphenol A
subject: endocrine disruptor
subject: 570 Biologie

description: One of the most important chemicals used in the production of polymer plastics and coatings is bisphenol A. However, despite the large number of studies on the toxicity and hormonal activity of BPA, there are still open questions and thus considerable media attention regarding BPA toxicity. Hence, it is necessary to develop a sensitive, simple, cost-efficient, specific, portable, and rapid method for monitoring bisphenol A and for high sample throughput and on-site screening analysis. Lateral flow immunoassays have potential as rapid tests for on-site screening. To meet sensitivity criteria, they must be carefully optimized. A latex microparticle-based LFIA for detection of BPA was developed. The sensitivity of the assay was improved by non-contact printing of spot grids as the control and test lines with careful parameter optimization. Results of the test could be visually evaluated within 10 min with a visual cut-off of 10 µg/L (vLOD). Alternatively, photographs were taken, and image analysis performed to set up a calibration, which allowed for a calculated limit of detection (cLOD) of 0.14 µg/L. The method was validated for thermal paper samples against ELISA and LC–MS/MS as reference methods, showing good agreement with both methods.
Letter from Frederick P. Keppel to Gunnar Myrdal, December 10, 1940
Creators: name: Keppel, Frederick P. (Frederick Paul), 1875-1943
Publisher: name: Columbia University
Year: 2019
Subjects: Race relations
African Americans--Social conditions
Endowments

description: Frederick P. Keppel writes to inform Gunnar Myrdal of the appointment of Donald Young, Shelby Harrison, and William Osburn to review the reports of the independent researchers working on the Carnegie-Myrdal Study and select which manuscripts will be included in the final published study.
Letter from Charles Dollard to Gunnar Myrdal, November 28, 1940
Creators: name: Dollard, Charles, 1907-1977
Publisher: name: Columbia University
Year: 2019
Subjects: Race relations
African Americans--Social conditions
Endowments

description: Discussion of Gunnar Myrdal's return from Sweden in January 1941, review of Alva Myrdal's manuscript for "Kontakt mit Amerika," and the approval of Richard Sterner's application for permanent United States residency.
Testing and improving the numerical accuracy of the NLO predictions
Creators: name: Pittau, R.
Publisher: name: arXiv
Year: 2010
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: I present a new and reliable method to test the numerical accuracy of NLO calculations based on modern OPP/Generalized Unitarity techniques. A convenient solution to rescue most of the detected numerically inaccurate points is also proposed.
description: References added. 1 Table added. Version accepted for publication
Limitation of network inhomogeneity in improving cooperation in coevolutionary dynamics
Creators: name: Zhong, Li-Xin
name: Qiu, Tian
Publisher: name: arXiv
Year: 2011
Subjects: subject: Physics and Society (physics.soc-ph)
subject: Social and Information Networks (cs.SI)
subject: FOS: Physical sciences
subject: FOS: Computer and information sciences

description: Cooperative behavior is common in nature even if selfishness is sometimes better for an individual. Empirical and theoretical studies have shown that the invasion and expansion of cooperators are related to an inhomogeneous connectivity distribution. Here we study the evolution of cooperation on an adaptive network, in which an individual is able to avoid being exploited by rewiring its link(s). Our results indicate that the broadening of connectivity distribution is not always beneficial for cooperation. Compared with the Poisson-like degree distribution, the exponential-like degree distribution is detrimental to the occurrence of a higher level of cooperation in the continuous snowdrift game (CSG).
Measuring the dark flow with public X-ray cluster data
Creators: name: Kashlinsky, A.
name: Atrio-Barandela, F.
name: Ebeling, H.
Publisher: name: arXiv
Year: 2010
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We present new results on the "dark flow" from a measurement of the dipole in the distribution of peculiar velocities of galaxy clusters, applying the methodology proposed and developed by us earlier. Our latest measurement is conducted using new, low-noise 7-yr WMAP data as well as an all-sky sample of X-ray selected galaxy clusters compiled exclusively from published catalogs. Our analysis of the CMB signature of the kinematic Sunyaev-Zeldovich (SZ) effect finds a statistically significant dipole at the location of galaxy clusters. The residual dipole outside the cluster regions is small, rendering our overall measurement 3-4 sigma significant. The amplitude of the dipole correlates with cluster properties, being larger for the most X-ray luminous clusters, as required if the signal is produced by the SZ effect. Since it is measured at zero monopole, the dipole can not be due to the thermal SZ effect. Our results are consistent with those obtained earlier by us from 5-yr WMAP data and using a proprietary cluster catalog. In addition, they are robust to quadrupole removal, demonstrating that quadrupole leakage contributes negligibly to the signal. The lower noise of the 7-yr WMAP also allows us, for the first time, to obtain tentative empirical confirmation of our earlier conjecture that the adopted filtering flips the sign of the KSZ effect for realistic clusters and thus of the deduced direction of the flow. The latter is consistent with our earlier measurement in both the amplitude and direction. Assuming the filtering indeed flips the sign of the KSZ effect from the clusters, the direction agrees well also with the results of independent work using galaxies as tracers at lower distances. We make all maps and cluster templates derived by us from public data available to the scientific community to allow independent tests of our method and findings.
description: ApJ, in press. Replaced with accepted version. The data needed for these results are at http://www.kashlinsky.info/bulkflows/data_public
Towards a Knowledge Engineering Methodology for Flexible Robot Manipulation in Everyday Tasks - Supplementary Material
Creators: name: Kümpel, Michaela
name: Töberg, Jan-Philipp
name: Hassouna, Vanessa
name: Cimiano, Philipp
name: Beetz, Michael
Publisher: name: figshare
Year: 2023
Subjects: classificationCode: 460912
subject: Knowledge and information management

description: Supplementary materials to the paper "Towards a Knowledge Engineering Methodology for Flexible Robot Manipulation in Everyday Tasks" submitted to ESWC24
Chemical abundances in the protoplanetary disk LV2 (Orion): clues to the causes of the abundance anomaly in HII regions
Creators: name: Tsamis, Y. G.
name: Walsh, J. R.
name: Vílchez, J. M.
name: Péquignot, D.
Publisher: name: arXiv
Year: 2010
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: Optical integral field spectroscopy of the archetype protoplanetary disk LV2 in the Orion Nebula is presented, taken with the VLT FLAMES/Argus fibre array. The detection of recombination lines of CII and OII from this class of objects is reported, and the lines are utilized as abundance diagnostics. The study is complemented with the analysis of HST Faint Object Spectrograph ultraviolet and optical spectra of the target contained within the Argus field of view. By subtracting the local nebula background the intrinsic spectrum of the proplyd is obtained and its elemental composition is derived for the first time. The proplyd is found to be overabundant in carbon, oxygen and neon compared to the Orion Nebula and the sun. The simultaneous coverage over LV2 of the CIII] 1908-A and [OIII] 5007-A collisionally excited lines (CELs) and CII and OII recombination lines (RLs) has enabled us to measure the abundances of C++ and O++ for LV2 with both sets of lines. The two methods yield consistent results for the intrinsic proplyd spectrum, but not for the proplyd spectrum contaminated by the generic nebula spectrum, thus providing one example where the long-standing abundance anomaly plaguing metallicity studies of HII regions has been resolved. These results would indicate that the standard forbidden-line methods used in the derivation of light metal abundances in HII regions in our own and other galaxies underestimate the true gas metallicity.
description: Accepted by MNRAS November 8; 16 pages, 9 figs; typos corrected, error in FWHMs in table 4 corrected in this version
Letter from Frederick P. Keppel to Gunnar Myrdal, November 28, 1940
Creators: name: Keppel, Frederick P. (Frederick Paul), 1875-1943
Publisher: name: Columbia University
Year: 2019
Subjects: Race relations
African Americans--Social conditions
Endowments

description: Frederick P. Keppel writes to express his happiness that Gunnar Myrdal plans to return to the United States from Sweden in January 1941 to complete work on the Carnegie-Myrdal Study.
New bounds on lepton flavor violating decays of vector mesons and the Z0 boson
Creators: name: Gutsche, Thomas
name: Helo, Juan C.
name: Kovalenko, Sergey
name: Lyubovitskij, Valery E.
Publisher: name: arXiv
Year: 2011
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We give an estimate for the upper bounds on rates of lepton flavor violating (LFV) decays M to mu(pm) + e(mp) of vector mesons M = rho0, omega, phi, J/psi, Upsilon and the Z0 boson in a model independent way, analyzing the corresponding lowest dimension effective operators. These operators also contribute to nuclear mu-e-conversion. Based on this observation and using the existing experimental limits on this LFV nuclear process, we show that the studied two-body LFV decays of vector bosons are strongly suppressed independent on the explicit realization of new physics. The upper limits on the rates of some of these decays are significantly more stringent than similar limits known in the literature. In view of these results experimental observation of the two-body LFV decays of vector bosons looks presently unrealistic.
description: 4 pages, 1 figure
Collaborative Open Access Publishing
Creators: name: Blümel, Ina
name: Worthington, Simon
name: Sael, Maria
Publisher: name: Zenodo
Year: 2021
Subjects: open science, guides, collaborative publishing, OAT21, open access, rapid publishing, multi-format publishing, collaborative authoring

description: Presentation of the publication 'The Open Science Guide of Guides' for OAT21 Open Science has become an indispensable part of modern science. There are several definitions of "openness" in relation to different aspects of science - the Open Definition sets out principles as follows “Open means anyone can freely access, use, modify, and share for any purpose (subject, at most, to requirements that preserve provenance and openness).” Practical guides for the implementation of those principles in different areas such as research data or publishing are of great importance because they can be used right away. Read more here
Electric and magnetic polarizabilities of hexagonal Ln2CuTiO6 (Ln=Y, Dy, Ho, Er and Yb)
Creators: name: Choudhury, Debraj
name: Hazarika, Abhijit
name: Venimadhav, Adyam
name: Kakarla, Chandrasekhar
name: Delaney, Kris T.
name: Devi, P. Sujatha
name: Mondal, P.
name: Nirmala, R.
name: Gopalakrishnan, J.
name: Spaldin, Nicola A.
name: Waghmare, Umesh V.
name: Sarma, D. D.
Publisher: name: arXiv
Year: 2010
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: We investigated the rare-earth transition metal oxide series, Ln2CuTiO6 (Ln=Y, Dy, Ho, Er and Yb), crystallizing in the hexagonal structure with non-centrosymmetric P63cm space group for possible occurrences of multiferroic properties. Our results show that while these compounds, except Ln=Y, exhibit a low temperature antiferromagnetic transition due to the ordering of the rare-earth moments, the expected ferroelectric transition is frustrated by the large size difference between Cu and Ti at the B-site. Interestingly, this leads these compounds to attain a rare and unique combination of desirable paraelectric properties with high dielectric constants, low losses and weak temperature and frequency dependencies. First-principles calculations establish these exceptional properties result from a combination of two effects. A significant difference in the MO5 polyhedral sizes for M = Cu and M = Ti suppress the expected co-operative tilt pattern of these polyhedra, required for the ferroelectric transition, leading to relatively large values of the dielectric constant for every compound investigated in this series. Additionally, it is shown that the majority contribution to the dielectric constant arises from intermediate-frequency polar vibrational modes, making it relatively stable against any temperature variation. Changes in the temperature stability of the dielectric constant amongst different members of this series are shown to arise from changes in relative contributions from soft polar modes.
description: Accepted for publication in Phys. Rev. B (21 pages, 2 Table, 8 Figures)
Exact computation of one-loop correction to energy of pulsating strings in AdS_5 x S^5
Creators: name: Beccaria, M.
name: Dunne, G. V.
name: Macorini, G.
name: Tirziu, A.
name: Tseytlin, A. A.
Publisher: name: arXiv
Year: 2010
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: In the present paper, which is a sequel to arXiv:1001:4018, we compute the one-loop correction to the energy of pulsating string solutions in AdS_5 x S^5. We show that, as for rigid spinning string elliptic solutions, the fluctuation operators for pulsating solutions can be also put into the single-gap Lame' form. A novel aspect of pulsating solutions is that the one-loop correction to their energy is expressed in terms of the stability angles of the quadratic fluctuation operators. We explicitly study the "short string" limit of the corresponding one-loop energies, demonstrating a certain universality of the form of the energy of "small" semiclassical strings. Our results may help to shed light on the structure of strong-coupling expansion of anomalous dimensions of dual gauge theory operators.
description: 49 pages; v2: appendix F and note about antiperiodic fermions added, typos corrected, references added
Modelling DNA Response to THz Radiation
Creators: name: Swanson, Eric S.
Publisher: name: arXiv
Year: 2010
Subjects: subject: Biological Physics (physics.bio-ph)
subject: FOS: Physical sciences

description: Collective response of DNA to THz electric fields is studied in a simple pair bond model. We confirm, with some caveats, a previous observation of destabilising DNA breather modes and explore the parameter-dependence of these modes. It is shown that breather modes are eliminated under reasonable physical conditions and that thermal effects are significant.
description: 6 pages, 3 figures. version to appear in Phys. Rev. E
Purification of genuine multipartite entanglement
Creators: name: Huber, Marcus
name: Plesch, Martin
Publisher: name: arXiv
Year: 2011
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: In tasks, where multipartite entanglement plays a central role, state purification is, due to inevitable noise, a crucial part of the procedure. We consider a scenario exploiting the multipartite entanglement in a straightforward multipartite purification algorithm and compare it to bipartite purification procedures combined with state teleportation. While complete purification requires an infinite amount of input states in both cases, we show that for an imperfect output fidelity the multipartite procedure exhibits a major advantage in terms of input states used.
description: 5 pages, 2 figures
Letter from Charles Dollard to Samuel A. Stouffer, October 19, 1940
Creators: name: Dollard, Charles, 1907-1977
Publisher: name: Columbia University
Year: 2019
Subjects: Race relations
African Americans--Social conditions
Endowments

description: Letter enclosed with list of manuscripts by independent researchers working on the Carnegie-Myrdal Study read or being read by other researchers from the study.
Field induced phase transition in one dimensional Heisenberg antiferromagnet model studied using density matrix renormalization group
Creators: name: Gustainis, Peter
Publisher: name: University of British Columbia
Year: 2017

description: This thesis examines the Heisenberg antiferromagnetic spin chain in one dimension (1D) with a crystal field splitting term and applied magnetic field term. We use theoretical techniques from quantum field theory and conformal field theory (CFT) to make predictions about the excitation spectrum for our model. We then use Density Matrix Renormalization Group (DMRG) numerical techniques to simulate our spin chain and extract the energy spectrum as we vary our crystal field splitting and magnetic field terms. These results are compared and we examine where theoretical calculations accurately describe our system. This work is motivated by recent experimental work done on SrNi₂Vi₂O₈ by Bera et al. [1] which is a quasi-1D material with weakly coupled spin chains in the bulk. These 1D chains are expected to be described by the Hamiltonian we study in this thesis, and we neglect interchain coupling. We first consider our system where the crystal field splitting term is set to zero, which can be described theoretically using a mapping to the non linear sigma model (NLSM). Near the critical field, it undergoes a Bose condensation transition whose excitation spectrum can be mapped to non-interacting fermions in 1D. We then consider large negative crystal field splitting, and find that near small applied magnetic field we can describe some excited states using Landau-Ginsburg theory. Near critical field, we show that the transition is in the Ising universality, and use results from CFT to predict the spectrum for finite size systems. This allows us to make predictions about where the transition field would be for very large or infinite system size. Finally, we examine our crystal field splitting tuned to the value obtained in Ref. 1, which is a small, negative value. We observe qualitative elements in this spectrum from the spectra obtained at zero and large negative crystal field splitting.
Thin accretion disk around a Kaluza-Klein black hole with squashed horizons
Creators: name: Chen, Songbai
name: Jing, Jiliang
Publisher: name: arXiv
Year: 2011
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We study the accretion process in the thin disk around a squashed Kaluza-Klein black hole and probe the effects of the extra dimensional scale $ρ_0$ on the physical properties of the disk. Our results show that with the increase of the parameter $ρ_0$, the energy flux, the conversion efficiency, the radiation temperature, the spectra luminosity and the spectra cut-off frequency of the thin accretion disk decrease, but the inner border of the disk increases. This implies that the extra dimension scale imprints in the mass accretion process in the disk.
description: 11pages, 4 figures, Accepted for publication in PLB
Decoy States and Two Way Quantum Key Distribution Schemes
Creators: name: Shaari, J. S.
name: Bahari, Iskandar
name: Ali, Sellami
Publisher: name: arXiv
Year: 2010
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We study the possible application of the decoy state method on a basic two way quantum key distribution (QKD) scheme to extend its distance. Noting the obvious advantage of such a QKD scheme in allowing for single as well as double photon contributions, we derive relevant lower-bounds on the corresponding gains in a practical decoy state implementation using two intensities for decoy states. We work with two different approaches in this vein and compare these with an ideal infinite decoy state case as well as the simulation of the original.
description: Much revised from original manuscript. Accepted for publication in Optics Communications (some variations may exist in some wordings in the text)
Particle Creation by Naked Singularities in Higher Dimensions
Creators: name: Miyamoto, Umpei
name: Nemoto, Hiroya
name: Shimano, Masahiro
Publisher: name: arXiv
Year: 2010
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: Recently, the possibility was pointed out by one of the present authors and his collaborators that an effective naked singularity referred to as "a visible border of spacetime" is generated by high-energy particle collision in the context of large extra dimensions or TeV-scale gravity. In this paper, we investigate the particle creation by a naked singularity in general dimensions, while adopting a model in which a marginally naked singularity forms in the collapse of a homothetic lightlike pressureless fluid. We find that the spectrum deviates from that of Hawking radiation due to scattering near the singularity but can be recast in quasi-thermal form. The temperature is always higher than that of Hawking radiation of a same-mass black hole, and can be arbitrarily high depending on a parameter in the model. This implies that, in principle, the naked singularity may be distinguished from a black hole in collider experiments.
description: 1+14 pages, 3 figures, 1 table; v2: footnotes 1 and 5 added