cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Status of Oscillation plus Decay of Atmospheric and Long-Baseline Neutrinos
Creators: name: Gonzalez-Garcia, M. C.
name: Maltoni, Michele
Publisher: name: arXiv
Year: 2008
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: Astrophysics (astro-ph)
subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: We study the interplay of neutrino oscillation and invisible decay in atmospheric and long-baseline neutrinos experiments. We perform a global analysis of the full atmospheric data from Super-Kamiokande together with long-baseline K2K and MINOS in these scenarios. We find that the admixture of nu_mu -> nu_tau oscillations with parameters Delta_m32^2 = 2.6e-3 eV^2 and theta_23 ~ 34 degrees plus decay of the heavy neutrino, nu_3, with lifetime of the order tau_3/m_3 ~ 2.6e-12 s/eV provides a reasonable fit to atmospheric neutrinos, although this solution becomes more disfavored (dropping to the 99% CL) once long-baseline data are included. Other than this local minimum, the analysis shows no evidence in favor of a non-vanishing neutrino decay width and an lower bound on the decay lifetime tau_3/m_3 > 9.3e-11 s/eV is set at 99% CL. In the framework of Majoron models, this constraint can be translated into a bound on the Majoron coupling to nu_3 and an unmixed very light sterile state, |g_s3| < 8.6e-3 (2.2 eV/m_3).
description: LaTeX file using elsart style, 10 pages and 2 figures included. Final version
The Effect of Thermal Neutrino Motion on the Non-linear Cosmological Matter Power Spectrum
Creators: name: Brandbyge, Jacob
name: Hannestad, Steen
name: Haugboelle, Troels
name: Thomsen, Bjarne
Publisher: name: arXiv
Year: 2008
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We have performed detailed studies of non-linear structure formation in cosmological models with light neutrinos. For the first time the effect of neutrino thermal velocities has been included in a consistent way, and the effect on the matter power spectrum is found to be significant. The effect is large enough to be measured in future, high precision surveys. Additionally, we provide a simple but accurate analytic expression for the suppression of fluctuation power due to massive neutrinos. Finally, we describe a simple and fast method for including the effect of massive neutrinos in large-scale N-body simulations which is accurate at the 1% level for \sum m_nu < 0.15 eV.
description: 17 pages, 7 figures. Minimal changes, matches JCAP version
The CFHTLS Strong Lensing Legacy Survey: I. Survey overview and T0002 release sample
Creators: name: Cabanac, R. A.
name: Alard, C.
name: Dantel-Fort, M.
name: Fort, B.
name: Gavazzi, R.
name: Gomez, P.
name: Kneib, J. P.
name: Fevre, O. Le
name: Mellier, Y.
name: Pello, R.
name: Soucail, G.
name: Sygnet, J. F.
name: Valls-Gabaud, D.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: AIMS: We present data from the CFHTLS Strong Lensing Legacy Survey (SL2S). Due to the unsurpassed combined depth, area and image quality of the Canada-France-Hawaii Legacy Survey it is becoming possible to uncover a large, statistically well-defined sample of strong gravitational lenses which spans the dark halo mass spectrum predicted by the concordance model from galaxy to cluster haloes. METHODS: We describe the development of several automated procedures to find strong lenses of various mass regimes in CFHTLS images. RESULTS: The preliminary sample of about 40 strong lensing candidates discovered in the CFHTLS T0002 release, covering an effective field of view of 28 deg$^2$ is presented. These strong lensing systems were discovered using an automated search and consist mainly of gravitational arc systems with splitting angles between 2 and 15 arcsec. This sample shows for the first time that it is possible to uncover a large population of strong lenses from galaxy groups with typical halo masses of about $10^{13}h^{-1}M_\odot$. We discuss the future evolution of the SL2S project and its main scientific aims for the next 3 years, in particular our observational strategy to extract the hundreds of gravitational rings also present in these fields.
description: 11 pages, 5 figures, A&A in press
Elicitation of classifier prefixes
Creators: name: Parker, Verdena
name: Spence, Justin
Publisher: name: California Language Archive, University of California, Berkeley
Year: 2022
Subjects: subject: hup

description: Audio file VP-161011-07: Elicitation of combinations of the classifier prefixes d-, l-, and ł-, based on attested examples from the texts in Sapir and Golla (2001).
Mutation Spectrum of the ABCA4 Gene in 335 Stargardt Disease Patients From a Multicenter German Cohort-Impact of Selected Deep Intronic Variants and Common SNPs
Creators: name: Schulz, H. L.
name: Grassmann, F.
name: Kellner, U.
name: Spital, G.
name: Rüther, K.
name: Jägle, H.
name: Hufendiek, K.
name: Rating, P.
name: Weber, Bernhard H. F.
Publisher: name: Universität Regensburg
Year: 2017
Subjects: subject: CASSETTE TRANSPORTER ABCA4; CONE-ROD DYSTROPHY; MACULAR DEGENERATION; RETINAL DYSTROPHIES; BIOCHEMICAL DEFECTS; TRANSCRIPTOME; REVEALS; ALLELES; PROTEIN; CELLS; Stargardt disease; ABCA4; mutation screening; genetic risk score
subject: 610 Medizin

description: PURPOSE. Stargardt disease (STGD1) is an autosomal recessive retinopathy, caused by mutations in the retina-specific ATP-binding cassette transporter (ABCA4) gene. To establish the mutational spectrum and to assess effects of selected deep intronic and common genetic variants on disease, we performed a comprehensive sequence analysis in a large cohort of German STGD1 patients. METHODS. DNA samples of 335 STGD1 patients were analyzed for ABCA4 mutations in its 50 coding exons and adjacent intronic sequences by resequencing array technology or next generation sequencing (NGS). Parts of intron 30 and 36 were screened by Sanger chain-terminating dideoxynucleotide sequencing. An in vitro splicing assay was used to test selected variants for their splicing behavior. By logistic regression analysis we assessed the association of common ABCA4 alleles while a multivariate logistic regression model calculated a genetic risk score (GRS). RESULTS. Our analysis identified 148 pathogenic or likely pathogenic mutations, of which 48 constitute so far unpublished ABCA4-associated disease alleles. Four rare deep intronic variants were found once in 472 alleles analyzed. In addition, we identified six risk-modulating common variants. Genetic risk score estimates suggest that defined common ABCA4 variants influence disease risk in carriers of a single pathogenic ABCA4 allele. CONCLUSIONS. Our study adds to the mutational spectrum of the ABCA4 gene. Moreover, in our cohort, deep intronic variants in intron 30 and 36 likely play no or only a minor role in disease pathology. Of note, our findings demonstrate a possible modifying effect of common sequence variants on ABCA4-associated disease.
Tensor-network codes
Creators: name: Farrelly, Terry
name: Harris, Robert J.
name: McMahon, Nathan A.
name: Stace, Thomas M.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Quantum Physics (quant-ph)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: Inspired by holographic codes and tensor-network decoders, we introduce tensor-network stabilizer codes which come with a natural tensor-network decoder. These codes can correspond to any geometry, but, as a special case, we generalize holographic codes beyond those constructed from perfect or block-perfect isometries, and we give an example that corresponds to neither. Using the tensor-network decoder, we find a threshold of 18.8% for this code under depolarizing noise. We also show that for holographic codes the exact tensor-network decoder (with no bond-dimension truncation) is efficient with a complexity that is polynomial in the number of physical qubits, even for locally correlated noise.
description: 5 pages main body + 5 pages appendices; 6 figures
Additional information for 'Multiscale simulation analysis of passive and active micro/nano-electrodes for CMOS-based in-vitro neural sensing devices'
Creators: name: Leva, Federico
name: Palestri, Pierpaolo
name: Selmi, Luca
Publisher: name: The Royal Society
Year: 2022
Subjects: subject: 90399 Biomedical Engineering not elsewhere classified
subject: FOS: Medical engineering
subject: 90699 Electrical and Electronic Engineering not elsewhere classified
subject: FOS: Electrical engineering, electronic engineering, information engineering
subject: 19999 Mathematical Sciences not elsewhere classified
subject: FOS: Mathematics

description: Information and results complementary to main text
Sociotropy and autonomy and the interpersonal model of depression: an integration
Creators: name: Bieling, Peter J.
Publisher: name: University of British Columbia
Year: 2009

description: Researchers and theorists have suggested that two personality styles may serve as pathways for the development of depression. One personality style, sociotropy, involves intense needs for positive interchange with others, whereas the other style, autonomy, involves an excessive need for self-control and independence. These personality styles were investigated in the context of Coyne's (1976) interpersonal model of depression, which suggests that depressed persons are rejected by others. Research on this model has been equivocal, and it is possible that these two personality dimensions result in meaningful interpersonal differences within depressed persons. Depressed outpatients, (N=41) and non-depressed controls (N=41) were assessed on sociotropy and autonomy and then participated in a brief task in which a research assistant helped them plan adaptive life changes. These interactions were rated subjectively and utilizing behavioural coding. Results indicated that a combination of depression and autonomy were particularly likely to lead to rejection and less positive interpersonal behaviours. Sociotropy was related to perceptions of interpersonal deference, whereas depression was associated with self-orientation in the task. These results suggest that both depression and personality impact rejection and interpersonal behaviours in social interactions. Overall, this study represents a significant step toward greater specificity in the interpersonal model of depression, and clinical implications of these findings are described.
title: Urban community formation through local civic petitions that occurred in Chinese Commodity Housing Estates
Creators: name: Tang, L
Publisher: name: University of Liverpool Repository
Year: 2020

description: housing estates has resulted in changes to the urban social order. The academic community has identified the deterioration and disappearance of placed-based ties within urban neighbourhoods. The rise in property-led civic actions that originated in Chinese commodity housing estates provides a potential linkage between urban community formation and local civic action. The homeowners use local social networks and local civic capacity to confront property infringements by either public or private forces. Such linkages have rarely been investigated from either theoretical or empirical perspectives; at least within the Chinese context. This thesis begins to fill this gap by developing a conceptual model for understanding and exploring the urban community formation through local property-led civic petitions that has been occurring in Chinese commodity housing estates. A network analysis approach was deployed in four embedded cases situated within two cities, Nanjing and Huai’an. The formation of urban communities in Chinese commodity housing estates was evaluated by exploring the importance of local social capital and how it evolved through the multiple steps of four civic petitions. The data for this research was drawn from an analysis of the four civic petitions’ documents, semi-structured interviews with key actors and questionnaires delivered to local residents within the four case study commodity housing estates. The research highlights how community development can be enhanced through local civic petitions. Although the level of community formation and development amongst the four case studies is different, they all demonstrate that there is an important role for civic petitions to play in promoting predominantly local neighbourhood based social capital through the development and enhancement of local social networks. The conceptual model used herein illustrates the mutual affecting influences that exist between local social capital and local civic action, and highlights the influential mechanisms that exist in developing a stronger sense of neighbourhood. This is argued, is enabled by the interplay that occurs between the involvement of local residents, and the behaviour of petition opponents and arbitrators to the application of local organisational social networks. It is concluded that place based civic petitions with commodity housing estates could play a role in helping to recreate a place-based community life, which has been eroded in recent years.
The KMOS$^{\rm 3D}$ Survey: Investigating the Origin of the Elevated Electron Densities in Star-Forming Galaxies at $1\lesssim{z}\lesssim{3}$
Creators: name: Davies, Rebecca L.
name: Schreiber, N. M. Förster
name: Genzel, R.
name: Shimizu, T. T.
name: Davies, R. I.
name: Schruba, A.
name: Tacconi, L. J.
name: Übler, H.
name: Wisnioski, E.
name: Wuyts, S.
name: Fossati, M.
name: Herrera-Camus, R.
name: Lutz, D.
name: Mendel, J. T.
name: Naab, T.
name: Price, S. H.
name: Renzini, A.
name: Wilman, D.
name: Beifiori, A.
name: Belli, S.
name: Burkert, A.
name: Chan, J.
name: Contursi, A.
name: Fabricius, M.
name: Lee, M. M.
name: Saglia, R. P.
name: Sternberg, A.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: We investigate what drives the redshift evolution of the typical electron density ($n_e$) in star-forming galaxies, using a sample of 140 galaxies drawn primarily from KMOS$^{\rm 3D}$ ($0.6\lesssim{z}\lesssim{2.6}$) and 471 galaxies from SAMI ($z<0.113$). We select galaxies that do not show evidence of AGN activity or outflows, to constrain the average conditions within H II regions. Measurements of the [SII]$λ$6716/[SII]$λ$6731 ratio in four redshift bins indicate that the local $n_e$ in the line-emitting material decreases from 187$^{+140}_{-132}$ cm$^{-3}$ at $z\sim$ 2.2 to 32$^{+4}_{-9}$ cm$^{-3}$ at $z\sim$ 0; consistent with previous results. We use the H$α$ luminosity to estimate the root-mean-square (rms) $n_e$ averaged over the volumes of star-forming disks at each redshift. The local and volume-averaged $n_e$ evolve at similar rates, hinting that the volume filling factor of the line-emitting gas may be approximately constant across $0\lesssim{z}\lesssim{2.6}$. The KMOS$^{\rm 3D}$ and SAMI galaxies follow a roughly monotonic trend between $n_e$ and star formation rate, but the KMOS$^{\rm 3D}$ galaxies have systematically higher $n_e$ than the SAMI galaxies at fixed offset from the star-forming main sequence, suggesting a link between the $n_e$ evolution and the evolving main sequence normalization. We quantitatively test potential drivers of the density evolution and find that $n_e$(rms) $\simeq{n_{H_2}}$, suggesting that the elevated $n_e$ in high-$z$ H II regions could plausibly be the direct result of higher densities in the parent molecular clouds. There is also tentative evidence that $n_e$ could be influenced by the balance between stellar feedback, which drives the expansion of H II regions, and the ambient pressure, which resists their expansion.
description: Main text 24 pages, 8 figures. Accepted for publication in ApJ
Colpoda cucullus Gmelin 1790
Creators: name: Durán-Ramírez, Carlos Alberto
name: Dias, Roberto Júnio Pedroso
name: Estrada, Rosaura Mayén-
Publisher: name: Zenodo
Year: 2020
Subjects: Biodiversity
Taxonomy
Chromista
Ciliophora
Oligohymenophorea
Hymenostomatida
Tetrahymenidae
Colpoda
Colpoda cucullus

description: Colpoda cucullus (Müller, 1773) Gmelin, 1790
Distribution. BRAZIL: Paraná River between the Nupelia’s Field Station and the district of Porto São José, São Pedro do Paraná (Buosi et al. 2014 b, 2015), (Ad). ECUADOR: (Foissner et al. 2003). MEXICO: Biocultural Reserve Kaxil Kiuic, near Oxkutzcab (ps), (Ab); Coastal Research Center CICOLMA (Durán-Ramírez et al. 2019), (Bp, Tc); Coffee plantation La Onza, near Coatepec (Durán-Ramírez et al. 2015), (Th); (Durán-Ramírez et al. 2019), (Tb, Th); Coffee plantation Virginia Armand, near Coatepec (Durán-Ramírez et al. 2015), (Th); Dos Lagunas, near Village of Tzsiscao (ps), (Cs, Ch, Tg, Tm, Ts); El Tegolome, near the town of Tlanchinol (ps), (Ti, Ts); Environmental Management Area Nace el Río, Descabezadero (Durán-Ramírez et a l. 2019), (Ab); La Joya, Acajete (Durán-Ramírez et al. 2019), (Ty); Reserve of the Biosphere Chamela-Cuixmala (Durán-Ramírez & Mayén-Estrada 2018), (Bk, Td, Tp, Tr); Santuario del Bosque de Niebla, near Xalapa (Durán-Ramírez et al. 2015), (Th); (Durán-Ramírez et al. 2019), (Te, Ts); (ps), (Cs, Pv, Te); surroundings of Reserva Azul, near the town of Cuetzalan (ps), (Cs, Th); Village El Cerezal, near Santa Catarina Ixtepeji (ps), (To). VENEZUELA: South margin of the Henri Pittier National Park, Biological Station Rancho Grande (Foissner 2016); North bor-der of the Henri Pittier National Park, surroundings of the village of Choroni (Foissner 2016), (Ts).
description: Published as part of Durán-Ramírez, Carlos Alberto, Dias, Roberto Júnio Pedroso & Estrada, Rosaura Mayén-, 2020, Checklist of ciliates (Alveolata: Ciliophora) that inhabit in bromeliads from the Neotropical Region, pp. 1-36 in Zootaxa 4895 (1) on page 22, DOI: 10.11646/zootaxa.4895.1.1, http://zenodo.org/record/4321437
Preparation for an information structure elicitation
Creators: name: Parker, Verdena
name: Newbold, Lindsey
Publisher: name: California Language Archive, University of California, Berkeley
Year: 2022
Subjects: subject: hup

description: Audio file VP-161011-06: Preparation for an elicitation based on the Questionnaire on Information Structure (QUIS), starting on page 171. Reference: Skopeteas, Stavros et al. 2006. Questionnaire on Information Structure. Interdisciplinary Studies on Information Structure, Volume 4. Potsdam: Universitätsverlag Potsdam.
The Hobby-Eberly Telescope "Chemical Abundances of Stars in the Halo" (CASH) Project. I. The Lithium-, s-, and r-Enhanced Metal-Poor Giant HKII 17435-00532
Creators: name: Roederer, Ian U.
name: Frebel, Anna
name: Shetrone, Matthew D.
name: Prieto, Carlos Allende
name: Rhee, Jaehyon
name: Gallino, Roberto
name: Bisterzo, Sara
name: Sneden, Christopher
name: Beers, Timothy C.
name: Cowan, John J.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We present the first detailed abundance analysis of the metal-poor giant HKII 17435-00532. This star was observed as part of the University of Texas long-term project "Chemical Abundances of Stars in the Halo" (CASH). A spectrum was obtained with the High Resolution Spectrograph (HRS) on the Hobby-Eberly Telescope with a resolving power of R~15,000. Our analysis reveals that this star may be located on the red giant branch, red horizontal branch, or early asymptotic giant branch. We find that this metal-poor ([Fe/H]=-2.2) star has an unusually high lithium abundance (log eps (Li)=+2.1), mild carbon ([C/Fe]=+0.7) and sodium ([Na/Fe]=+0.6) enhancement, as well as enhancement of both s-process ([Ba/Fe]=+0.8) and r-process ([Eu/Fe]=+0.5) material. The high Li abundance can be explained by self-enrichment through extra mixing that connects the convective envelope with the outer regions of the H-burning shell. If so, HKII 17435-00532 is the most metal-poor star in which this short-lived phase of Li enrichment has been observed. The Na and n-capture enrichment can be explained by mass transfer from a companion that passed through the thermally-pulsing AGB phase of evolution with only a small initial enrichment of r-process material present in the birth cloud. Despite the current non-detection of radial velocity variations (over ~180 days), it is possible that HKII 17435-00532 is in a long-period or highly-inclined binary system, similar to other stars with similar n-capture enrichment patterns.
description: 29 pages, 8 figures. Accepted for publication in ApJ. A full version of table 3 is available from the first author upon request
Long-range spin-wave propagation in transversely magnetized nano-scaled conduits
Creators: name: Heinz, Björn
name: Wang, Qi
name: Schneider, Michael
name: Weiß, Elisabeth
name: Lentfert, Akira
name: Lägel, Bert
name: Brächer, Thomas
name: Dubs, Carsten
name: Dobrovolskiy, Oleksandr V.
name: Pirro, Philipp
name: Chumak, Andrii V.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Applied Physics (physics.app-ph)
subject: FOS: Physical sciences

description: Magnonics attracts increasing attention in the view of novel low-energy computation technologies based on spin waves. Recently, spin-wave propagation in longitudinally magnetized nano-scaled spin-wave conduits was demonstrated, proving the fundamental feasibility of magnonics at the sub-100 nm scale. Transversely magnetized nano-conduits, which are of great interest in this regard as they offer a large group velocity and a potentially chirality-based protected transport of energy, have not yet been investigated due to their complex internal magnetic field distribution. Here, we present a study of propagating spin waves in a transversely magnetized nanoscopic yttrium iron garnet conduit of 50 nm width. Space and time-resolved micro-focused Brillouin-light-scattering spectroscopy is employed to measure the spin-wave group velocity and decay length. A long-range spin-wave propagation is observed with a decay length of up to (8.0+-1.5) μm and a large spin-wave lifetime of up to (44.7+-9.1) ns. The results are supported with micromagnetic simulations, revealing a single-mode dispersion relation in contrast to the common formation of localized edge modes for microscopic systems. Furthermore, a frequency non-reciprocity for counter-propagating spin waves is observed in the simulations and the experiment, caused by the trapezoidal cross-section of the structure. The revealed long-distance spin-wave propagation on the nanoscale is particularly interesting for an application in spin-wave devices, allowing for long-distance transport of information in magnonic circuits, as well as novel low-energy device architectures.
Leading and higher twists in proton, neutron and deuteron unpolarized structure functions
Creators: name: Simula, Silvano
Publisher: name: arXiv
Year: 2006
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We summarize the results of a recent global analysis of proton and deuteron F2 structure function world data performed over a large range of kinematics, including recent measurements done at JLab with the CLAS detector. From these data the lowest moments (n <= 10) of the unpolarized structure functions are determined with good statistics and systematics. The Q**2 evolution of the extracted moments is analyzed in terms of an OPE based twist expansion, taking into account soft-gluon effects at large x. A clean separation among the Leading and Higher-Twist terms is achieved. By combining proton and deuteron measurements the lowest moments of the neutron F2 structure function are determined and its leading twist term is extracted. Particular attention is paid to nuclear effects in the deuteron, which become increasingly important for the higher moments. Our results for the non-singlet, isovector (p - n) combination of the leading twist moments are used to test recent lattice simulations. We also determine the lowest few moments of the higher twist contributions, and find these to be approximately isospin independent, suggesting the possible dominance of ud correlations over uu and dd in the nucleon.
description: 8 pages, 4 figures; to appear in the Proceedings of the IVth International Conference on Quark and Nuclear Physics (QNP06), Madrid (Spain), June 5-10, 2006
Extra Gauge Invariance from an Extra Dimension
Creators: name: Carone, Christopher D.
name: Erlich, Joshua
name: Sher, Marc
Publisher: name: arXiv
Year: 2008
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We describe higher-dimensional theories whose low-energy 4D descriptions contain larger gauge or global symmetry groups. As an example, we construct a Higgsless SU(2) x U(1) model of electroweak symmetry breaking. The 5D SU(2) gauge invariance contains both the weak SU(2) gauge group and a custodial symmetry that protects the rho parameter. Fermions obtain isospin-violating masses while maintaining universal gauge couplings among all three generations. As a further example, we construct a model of chiral color based on a single SU(3).
description: 4 pages, 1 eps figure, RevTeX4
Topological structure of the many vortices solution in Jackiw-Pi model
Creators: name: Lee, Xi-Guo
name: Liu, Zi-Yu
name: Li, Yong-Qing
name: Zhang, Peng-Ming
Publisher: name: arXiv
Year: 2006
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We construct an M-solitons solutions in Jackiw-Pi model depends on 5M parameters(two positions, one scale, one phase per solition and one charge of each solution). By using ϕ-mapping method, we discuss the topological structure of the self-duality solution in Jackiw-Pi model in terms of gauge potential decomposition. We set up relationship between Chern-Simons vortices solution and topological number which is determined by Hopf indices and and Brouwer degrees. We also give the quantization of flux in this case.
description: 14 pages, 4 figures
Das Digitale in der neuen Präsenz : Handreichung für die Lehre an der TU Hamburg
Creators: name: Watolla, Ann-Kathrin
name: Wichmann, Stephanie
name: Carmesin, Tina
name: Billerbeck, Katrin
Publisher: name: TUHH Universitätsbibliothek
Year: 2021
Subjects: subject: Lehre
subject: Lehrentwicklung
subject: Digitale Medien
subject: Lehrendenbefragung
subject: Mediendidaktik
subject: 370: Erziehung, Schul- und Bildungswesen

description: Die Handreichung stellt eine Sammlung an Ideen und Anregungen für Lehrende dar, welche digitalen Werkzeugen und Tools für verschiedene Lehrzwecke sinnvoll genutzt werden können. Grundlage bilden die drei Lehrendenbefragungen, aus deren Ergebnissen die Erfahrungen mit digitalen Lehrelementen aus den letzten drei Corona-Semestern zusammengefasst und für die zukünftige Gestaltung der Lehre an der TUHH aufbereitet wurden. Die Handreichung wurde entwickelt von der HOOU@TUHH, angesiedelt am ITBH (G-3) und dem Zentrum für Lehre und Lernen (ZLL). Die Hinweise und Empfehlungen richten sich speziell an Lehrende der TUHH, da die meisten der genannten Tools vom Rechenzentrum der TUHH unterstützt werden.
Binary Lenses in OGLE III EWS Database. Season 2005
Creators: name: Skowron, J.
name: Jaroszynski, M.
name: Udalski, A.
name: Kubiak, M.
name: Szymanski, M. K.
name: Pietrzynski, G.
name: Soszynski, I.
name: Szewczyk, O.
name: Wyrzykowski, L.
name: Ulaczyk, K.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We present nine new binary lens candidates from OGLE-III Early Warning System database for the season of 2005. We have also found four events interpreted as single mass lensing of double sources. The candidates have been selected by visual light curves inspection. Examining the models of binary lenses in our previous studies (10 caustic crossing events of OGLE-II seasons 1997--1999 and 34 binary lens events of OGLE-III seasons 2002--2004, including one planetary event), in this work and in three publications concerning planetary events of season 2005, we find four cases of extreme mass ratio binaries (q<0.01), and almost all other models with mass ratios in the range 0.1
description: 19 pages, 45 figures
Cell wall proteins: a new insight through proteomics
Creators: name: Jamet, Elisabeth
name: Canut, Hervé
name: Boudart, Georges
name: Pont-Lezica, Rafael F
Publisher: name: arXiv
Year: 2006
Subjects: subject: Genomics (q-bio.GN)
subject: FOS: Biological sciences

description: Cell wall proteins are essential constituents of plant cell walls; they are involved in modifications of cell wall components, wall structure, signaling and interactions with plasma membrane proteins at the cell surface. The application of proteomic approaches to the cell wall compartment raises important questions: are there technical problems specific to cell wall proteomics? What kinds of proteins can be found in Arabidopsis walls? Are some of them unexpected? What sort of post-translational modifications have been characterized in cell wall proteins to date? The purpose of this review is to discuss the experimental results obtained to date using proteomics, as well as some of the new questions challenging future research.
Neutron scattering by magnetic octupoles of a quantum liquid
Creators: name: Gauthier, Nicolas
name: Porée, Victor
name: Petit, Sylvain
name: Pomjakushin, Vladimir
name: Lhotel, Elsa
name: Fennell, Tom
name: Sibille, Romain
Publisher: name: arXiv
Year: 2020
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Neutron scattering is a powerful tool to study magnetic structures and dynamics, benefiting from a precisely established theoretical framework. The neutron dipole moment interacts with electrons in materials via their magnetic field, which can have spin and orbital origins. Yet in most experimentally studied cases the individual degrees of freedom are well described within the dipole approximation, sometimes accompanied by further terms of a multipolar expansion that usually act as minor corrections to the dipole form factor. Here we report a unique example of neutrons diffracted mainly by magnetic octupoles. This unusual situation arises in a quantum spin ice where the electronic wavefunction becomes essentially octupolar under the effect of correlations. The discovery of such a new type of quantum spin liquid that comes with a specific experimental signature in neutron scattering is remarkable, because these topical states of matter are notoriously difficult to detect.
description: Article in Swiss Neutron News, after R. Sibille et al. Nature Physics 16, 546-552 (2020). https://sgn.web.psi.ch/sgn/snn.html
KdV solves BKP
Creators: name: Alexandrov, Alexander
Publisher: name: arXiv
Year: 2020
Subjects: subject: Exactly Solvable and Integrable Systems (nlin.SI)
subject: High Energy Physics - Theory (hep-th)
subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: In this note, we prove that any tau-function of the KdV hierarchy also solves the BKP hierarchy after a simple rescaling of times.
description: 2 pages
MgII Line Variability of High Luminosity Quasars
Creators: name: Woo, Jong-Hak
Publisher: name: arXiv
Year: 2008
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We monitored five high-luminosity quasars with lambda L_{3000A} > 10^45 erg s^-1 at 0.4 < z < 0.6 to measure flux variability of the MgII 2798 line and explore feasibility of reverberation mapping using MgII. Over the two year monitoring program, imaging data were obtained with the A Noble Double-Imaging Camera on the 1.3-m telescope at the Cerro Tololo Inter-American Observatory (CTIO), while spectroscopic data were obtained at the same night with the R-C spectrograph on the 1.5-m telescope at the CTIO. By performing differencial photometry using available field stars in each quasar image, we measured variability -- 10%-24% peak-to-peak changes and 3%-8% rms variations -- in the B band, which includes flux changes in the rest-frame UV continuum (~2500A -- ~3600A) as well as the MgII line. Utilizing photometric measurements for spectroscopic flux calibration, we measured the MgII line flux and the continuum flux at 3000Åfrom each single-epoch spectrum. Four objects showed MgII line flux variability with 23%-50% peak-to-peak changes and 8%-17% rms variations over 1-1.5 year rest-frame time scales, while one object showed no MgII flux variability within the measurement error (<5%). We also detected 4%-15% rms variations of the MgII line width for all five objects. With synchronous observations for photometry and spectroscopy, we demonstrated the feasibility of the MgII line reverberation mapping for high-luminosity quasars at intermediate redshift.
description: AJ in press, 8 pages, 8 figures edited version
Scaling Cosmologies of N=8 Gauged Supergravity
Creators: name: Rosseel, Jan
name: Van Riet, Thomas
name: Westra, Dennis B.
Publisher: name: arXiv
Year: 2006
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We construct exact cosmological scaling solutions in N=8 gauged supergravity. We restrict to solutions for which the scalar fields trace out geodesic curves on the scalar manifold. Under these restrictions it is shown that the axionic scalars are necessarily constant. The potential is then a sum of exponentials and has a very specific form that allows for scaling solutions. The scaling solutions describe eternal accelerating and decelerating power-law universes, which are all unstable. An uplift of the solutions to 11-dimensional supergravity is carried out and the resulting timedependent geometries are discussed. In the discussion we briefly comment on the fact that N=2 gauged supergravity allows stable scaling solutions.
description: 17 pages; referenced added, reportnr changed and some corrections in section 6
Exceptional Deconfinement in G(2) Gauge Theory
Creators: name: Pepe, M.
name: Wiese, U. -J.
Publisher: name: arXiv
Year: 2006
Subjects: subject: High Energy Physics - Lattice (hep-lat)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: The Z(N) center symmetry plays an important role in the deconfinement phase transition of SU(N) Yang-Mills theory at finite temperature. The exceptional group G(2) is the smallest simply connected gauge group with a trivial center. Hence, there is no symmetry reason why the low- and high-temperature regimes in G(2) Yang-Mills theory should be separated by a phase transition. Still, we present numerical evidence for the presence of a first order deconfinement phase transition at finite temperature. Via the Higgs mechanism, G(2) breaks to its SU(3) subgroup when a scalar field in the fundamental {7} representation acquires a vacuum expectation value v. Varying v we investigate how the G(2) deconfinement transition is related to the one in SU(3) Yang-Mills theory. Interestingly, the two transitions seem to be disconnected. We also discuss a potential dynamical mechanism that may explain this behavior.
description: 20 pages, 6 figures
Superconductivity and normal-state properties of kagome metal RbV3Sb5 single crystals
Creators: name: Yin, Qiangwei
name: Tu, Zhijun
name: Gong, Chunsheng
name: Fu, Yang
name: Yan, Shaohua
name: Lei, Hechang
Publisher: name: arXiv
Year: 2021
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: We report the discovery of superconductivity and detailed normal-state physical properties of RbV3Sb5 single crystals with V kagome lattice. RbV3Sb5 single crystals show a superconducting transition at Tc ~ 0.92 K. Meanwhile, resistivity, magnetization and heat capacity measurements indicate that it exhibits anomalies of properties at T* ~ 102 - 103 K, possibly related to the formation of charge ordering state. When T is lower than T*, the Hall coefficient RH undergoes a drastic change and sign reversal from negative to positive, which can be partially explained by the enhanced mobility of hole-type carriers. In addition, the results of quantum oscillations show that there are some very small Fermi surfaces with low effective mass, consistent with the existence of multiple highly dispersive Dirac band near the Fermi energy level.
description: 6 pages, 4 figures
Story of Buzzard and the Twin Girls
Creators: name: Parker, Verdena
name: Newbold, Lindsey
name: Spence, Justin
Publisher: name: California Language Archive, University of California, Berkeley
Year: 2022
Subjects: subject: hup

description: Audio and video files VP-161011-05: The story of Buzzard and the Twin Girls, told in Hupa and then in English.
2 copies of a letter from James Goldie to "Mac" [J. C. Macdonald], June 29, 1928
Creators: name: Goldie, James
Publisher: name: The University of British Columbia
Year: 2017

description: 2 copies of a letter to "Mac" [J. C. MacDonald] from James Goldie, dated June 29, 1928, regarding the issues with water users and water rates; Attached copy of letter to W. J. Coe from J. L. Logie regarding an agreement submitted to water users.
Rings and Jets around PSR J2021+3651: the `Dragonfly Nebula'
Creators: name: Van Etten, Adam
name: Romani, Roger W.
name: Ng, C. -Y.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We describe recent Chandra ACIS observations of the Vela-like pulsar PSR J2021+3651 and its pulsar wind nebula (PWN). This `Dragonfly Nebula' displays an axisymmetric morphology, with bright inner jets, a double-ridged inner nebula, and a ~30" polar jet. The PWN is embedded in faint diffuse emission: a bow shock-like structure with standoff ~1' brackets the pulsar to the east and emission trails off westward for 3-4'. Thermal (kT=0.16 +/-0.02 keV) and power law emission are detected from the pulsar. The nebular X-rays show spectral steepening from Gamma=1.5 in the equatorial torus to Gamma=1.9 in the outer nebula, suggesting synchrotron burn-off. A fit to the `Dragonfly' structure suggests a large (86 +/-1 degree) inclination with a double equatorial torus. Vela is currently the only other PWN showing such double structure. The >12 kpc distance implied by the pulsar dispersion measure is not supported by the X-ray data; spectral, scale and efficiency arguments suggest a more modest 3-4 kpc.
description: 22 pages, 5 figures, 3 tables, Accepted to ApJ
RG flow of integrable $\mathcal{E}$-models
Creators: name: Hassler, Falk
Publisher: name: arXiv
Year: 2020
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Exactly Solvable and Integrable Systems (nlin.SI)
subject: FOS: Physical sciences

description: We compute the one- and two-loop RG flow of integrable $σ$-models with Poisson-Lie symmetry. They are characterised by a twist function with $2N$ simple poles/zeros and a double pole at infinity. Hence, they capture many of the known integrable deformations in a unified framework, which has a geometric interpretation in terms of surface defects in a 4D Chern-Simons theory. We find that these models are one-loop renormalisable and present a very simple expression for the flow of the twist function. At two loops only models with $N$=1 are renormalisable. Applied to the $λ$-deformation on a semisimple group manifold, our results reproduce the $β$-functions in the literature.
description: 7 pages
A class of quantum many-body states that can be efficiently simulated
Creators: name: Vidal, G.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Quantum Physics (quant-ph)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: We introduce the multi-scale entanglement renormalization ansatz (MERA), an efficient representation of certain quantum many-body states on a D-dimensional lattice. Equivalent to a quantum circuit with logarithmic depth and distinctive causal structure, the MERA allows for an exact evaluation of local expectation values. It is also the structure underlying entanglement renormalization, a coarse-graining scheme for quantum systems on a lattice that is focused on preserving entanglement.
description: 4 pages, 5 figures
Dispersion relations and exact bounds on CFT correlators
Creators: name: Paulos, Miguel F.
Publisher: name: arXiv
Year: 2020
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We derive new crossing-symmetric dispersion formulae for CFT correlators restricted to the line. The formulae are equivalent to the sum rules implied by what we call master functionals, which are analytic extremal functionals which act on the crossing equation. The dispersion relations provide an equivalent formulation of the constraints of the Polyakov bootstrap and hence of crossing symmetry on the line. The built in positivity properties imply simple and exact lower and upper bounds on the values of general CFT correlators on the Euclidean section, which are saturated by generalized free fields. Besides bounds on correlators, we apply this technology to determine new universal constraints on the Regge limit of arbitrary CFTs and obtain very simple and accurate representations of the 3d Ising spin correlator.
description: 46 pages + appendices
A special simplex in the state space for entangled qudits
Creators: name: Baumgartner, Bernhard
name: Hiesmayr, Beatrix
name: Narnhofer, Heide
Publisher: name: arXiv
Year: 2006
Subjects: subject: Quantum Physics (quant-ph)
subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: Focus is on two parties with Hilbert spaces of dimension d, i.e. "qudits". In the state space of these two possibly entangled qudits an analogue to the well known tetrahedron with the four qubit Bell states at the vertices is presented. The simplex analogue to this magic tetrahedron includes mixed states. Each of these states appears to each of the two parties as the maximally mixed state. Some studies on these states are performed, and special elements of this set are identified. A large number of them is included in the chosen simplex which fits exactly into conditions needed for teleportation and other applications. Its rich symmetry - related to that of a classical phase space - helps to study entanglement, to construct witnesses and perform partial transpositions. This simplex has been explored in details for d=3. In this paper the mathematical background and extensions to arbitrary dimensions are analysed.
description: 24 pages, in connection with the Workshop 'Theory and Technology in Quantum Information, Communication, Computation and Cryptography' June 2006, Trieste; summary and outlook added, minor changes in notation
Interior Quasinormal Modes and Strong Cosmic Censorship
Creators: name: Miguel, Filipe S.
Publisher: name: arXiv
Year: 2020
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: Recent work has argued that the strong cosmic censorship (SCC) conjecture is violated by near-extremal Reissner-Nordström de Sitter (RNdS) black holes but respected by Kerr-de Sitter black holes. It has also been shown that the conjecture is violated by near-extremal BTZ black holes. The latter result relies on a coincidence between "exterior" and "interior" quasinormal frequencies. If this coincidence were to occur also for RNdS or Kerr-dS then it would significantly modify the conclusions of earlier work. In this paper, it is demonstrated that this coincidence does not occur for RNdS or Kerr-dS and so the conclusions of the earlier work remain valid.
description: 15 pages, 9 figures
Two-photon interference with two independent pseudo-thermal sources
Creators: name: Zhai, Yan-Hua
name: Chen, Xi-Hao
name: Wu, Ling-An
Publisher: name: arXiv
Year: 2006
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: The nature of two-photon interference is a subject that has aroused renewed interest in recent years and is still under debate. In this paper we report the first observation of two-photon interference with independent pseudo-thermal sources in which sub-wavelength interference is observed. The phenomenon may be described in terms of the classical statistical distribution of the two sources and their optical transfer functions.
description: Phys. Rev. A 74, 053807 (2006)
The acqusition of grammatical morphology by children who are unable to speak
Creators: name: Blockberger, Susan Jean
Publisher: name: University of British Columbia
Year: 2009

description: Most augmentative and alternative (AAC) systems do not allow preliterate children to manipulate and select grammatical morphemes while producing language output. To determine if this lack of productive control impedes acquisition of grammatical morphology, the acquisition of three grammatical morphemes was explored in children who are nonspeaking. A picture-selection comprehension task and a grammaticality judgment task were given to 20 children who are nonspeaking and 20 typically developing children matched by age equivalent score on a test of content vocabulary comprehension. Children in the nonspeaking group exhibited significantly more difficulty on both these tasks than typically developing children at the same content vocabulary comprehension level. Literate children in both groups were also given a structured written output task. Children who are nonspeaking tended to omit grammatical morphemes in their written output, whereas children in the typical group tended to include them. To rule out the possibility that these findings would be seen in any group of children with low content vocabulary comprehension levels, regardless of their ability to speak, a group of 15 atypical speaking children with a similar mean chronological age and content vocabulary comprehension level was also given these tasks. The atypical speaking youngsters did not do as well as children in the typical group, but they did do better than the children in the nonspeaking group. Clinical and theoretical implications are discussed.
Paramagnetic Intrinsic Meissner Effect in Layered Superconductors
Creators: name: Lebed, A. G.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: Free energy of a layered superconductor with $ξ_{\perp} < d$ is calculated in a parallel magnetic field by means of the Gor'kov equations, where $ξ_{\perp}$ is a coherence length perpendicular to the layers and $d$ is an inter-layer distance. The free energy is shown to differ from that in the textbook Lawrence-Doniach model at high fields, where the Meissner currents are found to create an unexpected positive magnetic moment due to shrinking of the Cooper pairs "sizes" by a magnetic field. This paramagnetic intrinsic Meissner effect in a bulk is suggested to detect by measuring in-plane torque, the upper critical field, and magnetization in layered organic and high-T$_c$ superconductors as well as in superconducting superlattices.
description: Submitted to Physical Review Letters on February 21st 2008