cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
title: Universitätsbibliothek Marburg Ms. 362: Clericus Hildesheimensis
Creators: name: Anonym
Publisher: name: Philipps-Universität Marburg
Year: 2022
Subjects: Manuscripts & rare books
Handschriften, seltene Bücher

description: Elektronische Reproduktion von: [Handschrift] Universitätsbibliothek Marburg Ms. 362: Clericus Hildesheimensis. - 8 Blätter ; Beschreibstoff: Pergament; 19 x 13,5 (15 x 10.8) cm. - Erschienen: [Deutschland], [15. Jahrhundert]. - Standort: Universität Marburg, Universitätsbibliothek. - Signatur: Ms. 362. - Bemerkungen: Frühere Signaturen: Mscr. 362. Ausführliche Beschreibung: Heyne, Sirka: Die mittelalterlichen Handschriften der Universitätsbibliothek Marburg; Wiesbaden : Harrassowitz, 2002; S. 262. - (Fragment) Digitalisiert 2021
Lorentz and CPT violation in neutrino oscillations
Creators: name: Diaz, Jorge S.
Publisher: name: arXiv
Year: 2010
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: Neutrino oscillations in the presence of Lorentz violation can present novel observable signals in both long- and short-baseline experiments. In this talk we describe the theory and its different regimes depending on properties of the experiments. CPT violation, its systematic search and possible connections to latest results are also presented.
description: Presented at the Fifth Meeting on CPT and Lorentz Symmetry, Bloomington, Indiana, June 28-July 2, 2010
Soziale Arbeit als Verbündete der LGBTIQ*-Community? Eine qualitative Forschungsarbeit zu queerer Kollektividentität und deren Forderungen nach gesellschaftlicher Veränderung
Creators: name: Wyss, Kathrin
Publisher: name: Zenodo
Year: 2019

description: In dieser Bachelorarbeit mit dem Titel «Soziale Arbeit als Verbündete der LGBTIQ*-Commu-nity?» befasst sich Kathrin Wyss mit Berührungspunkten zwischen der LGBTIQ*-Community, also lesbischen, schwulen, bisexuellen, trans*, inter* sowie queeren Personen und der Sozialen Arbeit. Zum einen befasst sich die Arbeit mit der Frage nach der inhaltlichen und formalen Struk-tur der LGBTIQ*-Community, und zum andern mit der Frage nach gemeinsamen Anliegen mit der Sozialen Arbeit. Die qualitative Forschung anhand zweier Gruppendiskussionen mit Perso-nen, die einen persönlichen Bezug zur LGBTIQ*-Community haben, zeigt eine grosse interne Diversität und auch innere Uneinigkeit auf. Aus der Diskussion der Forschungsergebnisse und den Theorieansätzen zu Queer Theory, sozialen Bewegungen und kritischer Sozialer Arbeit wird aber das gemeinsame Anliegen einer Veränderung in der Gesellschaft deutlich. Heteronorma-tive Machtstrukturen in der Gesellschaft ziehen die Grenzen der Normalität so, dass Menschen der LGBTIQ*-Community daraus ausgeschlossen werden. Aus den Schlussfolgerungen dieser Ar-beit wird ersichtlich, dass die Soziale Arbeit das Potenzial hat, als Verbündete der LGBTIQ*-Com-munity diskriminierende gesellschaftliche Strukturen aufzubrechen. Zum Schluss wird argumen-tiert, dass eine kritische Soziale Arbeit ihre eigene Normierungsmacht erkennen sowie kritisie-ren und sich ein eigenes politisches Mandat erteilen muss. Als Hilfsmittel einer normkritischen Sozialen Arbeit werden Anerkennung von Differenz, Reflexion von Sprache und Deutung sowie die Umsetzung von Partizipation, dem Peer-Ansatz und Empowermentstrategien in der Praxis aufgezeigt.
description: + Code Diss LU: hslusa basa be 2019 + Fussnote: Bachelorarbeit, Hochschule Luzern - Soziale Arbeit, Ausbildungsgang Sozialarbeit, 2019
Energetic constraints to chemo-photometric evolution of spiral galaxies
Creators: name: Buzzoni, Alberto
Publisher: name: arXiv
Year: 2011
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: The problem of chemo-photometric evolution of late-type galaxies is dealt with relying on prime physical arguments of energetic self-consistency between chemical enhancement of galaxy mass, through nuclear processing inside stars, and luminosity evolution of the system. Chemical enhancement is assessed in terms of the so-called "yield metallicity", that is the metal abundance of processed mass inside stars, as constrained by the galaxy photometric history.
description: Ready to appear in the MNRAS. A total of 24 pages with 17 figures & 6 tables. Further info at author's web site (see http://www.bo.astro.it/~eps/home.html)
Measurement of the reaction $γp \TO K^ + Λ(1520)$ at photon energies up to 2.65 GeV
Creators: name: Wieland, F. W.
name: Barth, J.
name: Glander, K. -H.
name: Hannappel, J.
name: Jöpen, N.
name: Klein, F.
name: Klempt, E.
name: Lawall, R.
name: Menze, D.
name: Ostrick, M.
name: Paul, E.
name: Schulday, I.
name: Schwille, W. J.
Publisher: name: arXiv
Year: 2010
Subjects: subject: Nuclear Experiment (nucl-ex)
subject: FOS: Physical sciences

description: The reaction $γp \TO K^+Λ(1520)$ was measured in the energy range from threshold to 2.65 GeV with the SAPHIR detector at the electron stretcher facility ELSA in Bonn. The $Λ(1520)$ production cross section was analyzed in the decay modes $pK^-$, $n \bar{K}^0$, $Σ^{\pm}π^{\mp}$, and $Λπ^+π^-$ as a function of the photon energy and the squared four-momentum transfer $t$. While the cross sections for the inclusive reactions rise steadily with energy, the cross section of the process $γp \TO K^+Λ(1520)$ peaks at a photon energy of about 2.0 GeV, falls off exponentially with $t$, and shows a slope flattening with increasing photon energy. The angular distributions in the $t$-channel helicity system indicate neither a $K$ nor a $K^\star$ exchange dominance. The interpretation of the $Λ(1520)$ as a $Σ(1385)π$ molecule is not supported.
description: 11 pages, 16 figures, 4 tables
Energy spectrum and Landau levels in bilayer graphene with spin-orbit interaction
Creators: name: Mireles, Francisco
name: Schliemann, John
Publisher: name: Universität Regensburg
Year: 2012
Subjects: subject: 530 Physik

description: We present a theoretical study of the bandstructure and Landau levels in bilayer graphene at low energies in the presence of a tranverse magnetic field and Rashba spin-orbit interaction. Within an effective low energy approach (L\"owdin partitioning theory) we derive an effective Hamiltonian for bilayer graphene that incorporates the influence of the Zeeman effect, the Rashba spin-orbit interaction, and inclusively, the role of the intrinsic spin-orbit interaction at the same footing. Particular attention is spent to the energy spectrum and Landau levels. Our modeling unveils the strong influence of the Rashba coupling $\lambda_R $ in the spin-splitting of the electron and hole bands. We found that graphene bilayer with weak Rashba spin-orbit interaction shows a spin-splitting linear in momentum and proportional to $\lambda_R $, but scales inversely proportional to the interlayer hopping energy $\gamma_1$. However at robust spin-orbit coupling $\lambda_R $ the energy spectrum shows a strong warping behavior near the Dirac points. We find the bias-induced gap in bilayer graphene to be decreasing with increasing Rashba coupling, a behavior resembling a topological insulator transition. We further predicted an unexpected assymetric spin-splitting and crossings of the Landau levels due to the interplay between the Rashba interaction and the external bias voltage. Our results are of relevance for interpreting magnetotransport and infrared cyclotron resonance measurements, including also situations of comparatively weak spin-orbit coupling.
The diffuse supernova neutrino background: Expectations and uncertainties derived from SN1987A
Creators: name: Vissani, Francesco
name: Pagliaroli, Giulia
Publisher: name: arXiv
Year: 2011
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: Context: The detection of the diffuse supernova neutrino background may be imminent, but theoretical predictions are affected by substantial uncertainties. AIMS. We calculate the signal and its uncertainty with the present configuration of Super-Kamiokande and consider the possibility of lowering the threshold by means of gadolinium loading. Methods: We model neutrino emission following the analysis of SN1987A by Pagliaroli and collaborators 2009 and use the number of expected events in the neutrino detector as a free parameter of the fit. The best-fit value of this parameter and its error are evaluated by means of standard maximum likelihood procedures, taking into account properly the correlations. Results: The uncertainties in the astrophysics of the emission dominates the total uncertainty in the expected signal rate, which conservatively ranges from 0.3 to 0.9 events per year and from 1.1 to 2.9 with gadolinium.
description: 4 pages, 5 figures, to appear in A&A
Magnetoresistance and non-Ohmic conductivity of thin platinum films at low temperatures
Creators: name: Hoffmann, H.
name: Hofmann, F.
name: Schoepe, Wilfried
Publisher: name: Universität Regensburg
Year: 1982
Subjects: subject: 530 Physik

description: The electrical conductivity of thin Pt films is measured as a function of temperature T, magnetic field B, and electric field E. A logarithmic temperature dependence is observed. The magnetoresistance is positive and anisotropic, increasing as B2/T in small perpendicular fields and logarithmically in high B⊥. The electric field causes the resistance to drop proportional to E2 at low E and logarithmically at high E, in agreement with localization theory. Our data on the magnetoresistance, however, disagree with theory.
Iroha uta
Creators: name: Olszewski, Krzysztof
Publisher: name: figshare
Year: 2025
Subjects: classificationCode: 470519
subject: Literature in Japanese

description: Pierwszy polski przekład słynnego japońskiego pangramu, wg którego układano kolejność sylabariusza kana aż do połowy XX w. - Iroha uta, utwór przypisywany słynnemu reformatorowi buddyzmu, mnichowi Kuukaiowi.
Targeting MCT4 for treatment of advanced prostate cancers : inhibiting cell proliferation and enhancing anticancer immunity through suppressing lactic acid secretion and elevated glycolysis
Creators: name: Choi, Stephen Yiu Chuen
Publisher: name: University of British Columbia
Year: 2017

description: Prostate cancer (PCa) is the most commonly diagnosed non-cutaneous cancer in North American males and a leading cause of cancer deaths. The lack of effective treatment options for advanced PCa such as AR-positive castration-resistant PCa (CRPC-AD) and the highly aggressive AR-negative CRPC, e.g. neuroendocrine PCa (CRPC-NE) presents a critical, unmet need for the development of novel therapeutics. Altered metabolism in the form of elevated aerobic glycolysis is a common cancer characteristic. Here we propose a novel conceptual understanding for the central, functional role of excessive cancer-generated lactic acid. In particular, the acidification of the tumor microenvironment via increased MCT4-mediated lactic acid secretion can facilitate multiple crucial cancer-promoting processes, including proliferation, tissue invasion/metastasis, angiogenesis, and suppression of local anticancer immunity. As such, the inhibition of MCT4 could be an effective therapeutic strategy broadly impacting multiple downstream lactate-associated tumour-promoting processes. Experimentally, we were able to confirm the clinical relevance of elevated glycolysis and increased lactic acid production in various advanced PCa patient-derived xenograft (PDX) models and patient tumours using a novel metabolic pathway score. In particular, NEPC tumours appear to rely much more heavily on elevated aerobic glycolysis and MCT4-mediated lactic acid secretion. In a proof-of-concept study using MCT4-specific antisense oligonucleotides (ASOs), reduced MCT4 expression is able to reduce proliferation, invasion/migration, and glucose metabolism of advanced PCa cells in vitro. More importantly, we demonstrated in two distinct in vivo models containing residual functional immune cells that MCT4 inhibition enhanced anticancer immunity. Finally, a state-of-the-art in silico drug discovery pipeline was employed in the first steps towards developing a potent and specific MCT4 small molecule inhibitor. Computer modeling of MCT4 structure, virtual molecular docking, and downstream experimental validation identified a promising hit series based on the chemical scaffold of VPC-25009 as a potential second therapeutic modality for MCT4 inhibition. Taken together, we were able to provide experimental support for our novel hypothesis regarding the central tumour-promoting and immunosuppressive role of cancer-generated lactic acid. A therapeutic approach blocking lactic acid secretion by targeting MCT4 function could thus inhibit multiple downstream lactate-associated processes for effective treatment of advanced PCa and other highly glycolytic cancers.
Inhibition of tunneling from electronic bubble states in liquid helium into the vapor phase at high vapor densities
Creators: name: Schoepe, Wilfried
name: Wagner, F.
Publisher: name: Universität Regensburg
Year: 1975
Subjects: subject: 530 Physik

description: It is shown that at temperatures near 4.2 K electron tunneling from liquid helium into the vapor phase will be inhibited due to the increasing vapor density.
Iroha uta.pdf
Creators: name: Olszewski, Krzysztof
Publisher: name: figshare
Year: 2025
Subjects: classificationCode: 470519
subject: Literature in Japanese

description: Pierwszy polski przekład słynnego japońskiego pangramu, wg którego układano kolejność sylabariusza kana aż do połowy XX w. - Iroha uta, utwór przypisywany słynnemu reformatorowi buddyzmu, mnichowi Kuukaiowi.
Quantifying the anisotropy in the infrared emission of powerful AGN
Creators: name: Hoenig, S. F.
name: Leipski, C.
name: Antonucci, R.
name: Haas, M.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: We use restframe near- and mid-IR data of an isotropically selected sample of quasars and radio galaxies at 1.0 \leq z \leq 1.4, which have been published previously, to study the wavelength-dependent anisotropy of the IR emission. For that we build average SEDs of the quasar subsample (= type 1 AGN) and radio galaxies (= type 2 AGN) from ~1-17 μm and plot the ratio of both average samples. From 2 to 8 μm restframe wavelength the ratio gradually decreases from 20 to 2 with values around 3 in the 10μm silicate feature. Longward of 12μm the ratio decreases further and shows some high degree of isotropy at 15 μm (ratio ~1.4). The results are consistent with upper limits derived from the X-ray/mid-IR correlation of local Seyfert galaxies. We find that the anisotropy in our high-luminosity radio-loud sample is smaller than in radio-quiet lower-luminosity AGN which may be interpreted in the framework of a receding torus model with luminosity-dependent obscuration properties. It is also shown that the relatively small degree of anisotropy is consistent with clumpy torus models.
description: 6 pages, 2 figures; accepted by ApJ
Vibrations of a magnetic microsphere levitated above a superconductor: a high-Q oscillator for studies of vorticity in superconductors and superfluids
Creators: name: Eizinger, P.
name: Schoepe, Wilfried
name: Gloos, K.
name: Simola, J. T.
name: Tuoriniemi, J. T.
Publisher: name: Universität Regensburg
Year: 1992
Subjects: subject: 530 Physik

description: The oscillations of a small magnetic sphere (radius 100 μm) levitated above a superconductor are investigated. Resonance frequencies between 300 Hz and 600 Hz are observed. At low amplitudes (≤1 gmm) the oscillator has Q values of about 106. At larger amplitudes both the resonance frequency and the damping become amplitude dependent. Nonlinear and hysteretic friction is attributed to vortex motion in the superconducting environment. Application of this oscillator for investigation of vorticity in superfluids is discussed.
Comparing Repository Types - Challenges and barriers for subject-based repositories, research repositories, national repository systems and institutional repositories in serving scholarly communication
Creators: name: Armbruster, Chris
name: Romary, Laurent
Publisher: name: arXiv
Year: 2010
Subjects: subject: Digital Libraries (cs.DL)
subject: FOS: Computer and information sciences

description: After two decades of repository development, some conclusions may be drawn as to which type of repository and what kind of service best supports digital scholarly communication, and thus the production of new knowledge. Four types of publication repository may be distinguished, namely the subject-based repository, research repository, national repository system and institutional repository. Two important shifts in the role of repositories may be noted. With regard to content, a well-defined and high quality corpus is essential. This implies that repository services are likely to be most successful when constructed with the user and reader uppermost in mind. With regard to service, high value to specific scholarly communities is essential. This implies that repositories are likely to be most useful to scholars when they offer dedicated services supporting the production of new knowledge. Along these lines, challenges and barriers to repository development may be identified in three key dimensions: a) identification and deposit of content; b) access and use of services; and c) preservation of content and sustainability of service. An indicative comparison of challenges and barriers in some major world regions such as Europe, North America and East Asia plus Australia is offered in conclusion.
Propagation of first sound in liquid 3He
Creators: name: Eska, G.
name: Neumaier, K.
name: Uhlig, K.
name: Wiedemann, W.
name: Schoepe, Wilfried
name: Wölfle, P.
Publisher: name: Universität Regensburg
Year: 1981
Subjects: subject: 530 Physik

description: The dispersion of first (hydrodynamic) sound in normalfluid and superfluid 3He has been measured in a cylindrical resonator at a pressure of 18.8 bar in the frequency range between 85 kHz and 227 kHz and in the temperature range between 1.2 and 50 mK. The sound velocity measured in the normalfluid regime confirms recent theories of the slip effect in Fermi liquids; in superfluid 3He-B we find qualitative agreement between experiment and theoretical sound velocity.
Some new results on Gröbner-Shirshov bases
Creators: name: Bokut, L. A.
name: Chen, Yuqun
name: Shum, K. P.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Rings and Algebras (math.RA)
subject: FOS: Mathematics
subject: 16S15, 13P10, 13N10, 16-xx, 17-xx, 17B01, 17B66, 18Axx, 20F36, 20M18, 17B37, 18D50

description: In this survey article, we report some new results of Gröbner-Shirshov bases, including new Composition-Diamond lemmas and some applications of some known Composition-Diamond lemmas.
description: 50 pages
CROISSANCE ÉCONOMIQUE EN RDC, EFFETS SUR LE DÉVELOPPEMENT SOCIO-ÉCONOMIQUE DE LA POPULATION : LE PARADOXE QUI INTERPELLE
Creators: name: NGEKA AWYNGWOY Yollande
name: KUKATULA FALASH  Onésime
Publisher: name: Zenodo
Year: 2025

description: La croissance économique est un objectif à atteindre que se fixe chaque pays, chaque économie, mais celle-ci ne doit pas seulement être nominale. Elle doit se refléter dans la vie économique et sociale.La RDC pays qui aspire à atteindre le développement, celle-ci passe par l’atteinte d’un certain niveau de croissance et de l’évolution positive du niveau de vie de ses citoyens. Il s’avère qu ‘au cours des derniers décennies, on a constaté une croissance du PIB, mais cette croissance n’impacte presque pas le niveau de vie de la population congolaise.Cet impact moins conséquent est dû d’une part à la non diversification de l’économie qui est l’ expose aux fluctuations du secteur minier et d’autre part par le manque de pérennité de la croissance économique. D’où la nécessité de revoir le modèle de croissance de la RDC et de repenser le modèle économique en privilégiant le secteur agricole et industrielle.
Mobility of Negative Ions in Superfluid 3He
Creators: name: Ahonen, A. I.
name: Kokko, J.
name: Lounasmaa, O. V.
name: Paalanen, M. A.
name: Richardson, R. C.
name: Schoepe, Wilfried
name: Takano, Y.
Publisher: name: Universität Regensburg
Year: 1976
Subjects: subject: 530 Physik

description: We have found that the mobility of negative ions increases rapidly below Tc in both superfluid 3He phases. The ratio μ/μN of superfluid to normal mobility is larger in the B phase than in the A phase. A critical velocity consistent in magnitude with the Landau limit for pair breaking has also been observed. In the normal fluid we find a temperature-independent mobility between 30 mK and Tc for all pressures between 0 and 28 bars.
Occupational Stress, Job Satisfaction and Job.pdf
Creators: name: Ziyad, Mohamed
Publisher: name: figshare
Year: 2023
Subjects: classificationCode: 350801
subject: Impacts of tourism
classificationCode: 350803
subject: Tourism management
classificationCode: 350805
subject: Tourism resource appraisal
classificationCode: 350806
subject: Tourist behaviour and visitor experience
classificationCode: 350802
subject: Tourism forecasting
classificationCode: 350804
subject: Tourism marketing
classificationCode: 399999
subject: Other education not elsewhere classified
classificationCode: 440713
subject: Tourism policy
classificationCode: 380102
subject: Behavioural economics
classificationCode: 520402
subject: Decision making
classificationCode: 520403
subject: Learning, motivation and emotion
classificationCode: 520201
subject: Behavioural genetics

description: This is a quantitative study conducted to look at the connection between Occupational Stress, Job Satisfaction and Job Performance among Employees from Tourism sector of Maldives.
D-brane Construction of the 5D NHEK Dual
Creators: name: Song, Wei
name: Strominger, Andrew
Publisher: name: arXiv
Year: 2011
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: Extremal but non-supersymmetric charged black holes with SU(2)_L spin in IIB string theory compactified to five dimensions on K^3 x S^1 are considered. These have a near-horizon or NHEK region with an enhanced SL(2,R)_L conformal symmetry. It is shown that the NHEK geometry has a second, inequivalent, asymptotically flat extension in which the radius of the S^1 becomes infinite but the radius of the angular circles of SU(2)_L orbits approach a constant. The asymptotic charges associated to the second solution identify it as a 5D D1-D5-Taub-NUT black string with certain nonzero worldvolume charge densities, temperatures and chemical potentials. The dual of the NHEK geometry is then identified as an IR limit of this wrapped brane configuration.
description: 11 pages
Absolute proper motion of the Galactic open cluster M67
Creators: name: Bellini, A.
name: Bedin, L. R.
name: Pichardo, B.
name: Moreno, E.
name: Allen, C.
name: Piotto, G.
name: Anderson, J.
Publisher: name: arXiv
Year: 2010
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: We derived the absolute proper motion (PM) of the old, solar-metallicity Galactic open cluster M67 using observations collected with CFHT (1997) and with LBT (2007). About 50 galaxies with relatively sharp nuclei allow us to determine the absolute PM of the cluster. We find (mu_alpha cos(delta),mu_delta)_J2000.0 = (-9.6+/-1.1,-3.7+/-0.8) mas/yr. By adopting a line-of-sight velocity of 33.8+/-0.2 km/s, and assuming a distance of 815+/-50 pc, we explore the influence of the Galactic potential, with and without the bar and/or spiral arms, on the galactic orbit of the cluster.
description: 7 pages, 5 figures, and 3 tables. Published in Astronomy and Astrophysics, Volume 513, id.A51.
Mechanisms of magnetoresistance in variable-range-hopping transport for two-dimensional electron systems
Creators: name: Raikh, M. E.
name: Czingon, J.
name: Ye, Qiu-yi
name: Koch, F.
name: Schoepe, Wilfried
name: Ploog, K.
Publisher: name: Universität Regensburg
Year: 1992
Subjects: subject: 530 Physik
subject: 72.20.My
subject: 71.55.Jv

description: The temperature and magnetic-field dependencies of hopping transport in dilutely doped δ layers have been measured under the conditions for which the variable-range mechanism applies. We trace the transition from negative magnetoresistance in low fields to positive magnetoresistance in high fields. In the range of intermediate fields, the resistance in the perpendicular orientation appears to be several times less than that in the parallel one. It is shown that this ‘‘inverted’’ relation cannot be accounted for in terms of the interference of alternative hopping paths alone. We note also a distinct nonmonotonic variation of the resistance with magnetic field in the perpendicular orientation. The results are explained by considering both the interference of alternative hopping paths and the influence of a magnetic field on the density of states at the Fermi level, which defines the magnitude of Mott’s T0 parameter in variable-range hopping.
Distillation and purification of symmetric entangled Gaussian states
Creators: name: Fiurasek, Jaromir
Publisher: name: arXiv
Year: 2010
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We propose an entanglement distillation and purification scheme for symmetric two-mode entangled Gaussian states that allows to asymptotically extract a pure entangled Gaussian state from any input entangled symmetric Gaussian state. The proposed scheme is a modified and extended version of the entanglement distillation protocol originally developed by [Browne et al., Phys. Rev. A 67, 062320 (2003)]. A key feature of the present protocol is that it utilizes a two-copy de-Gaussification procedure that involves a Mach-Zehnder interferometer with single-mode non-Gaussian filters inserted in its two arms. The required non-Gaussian filtering operations can be implemented by coherently combining two sequences of single-photon addition and subtraction operations.
description: 7 pages, 4 figures, REVTeX4
Hydrodynamic sound experiments in normal and superfluid 3He
Creators: name: Eska, G.
name: Neumaier, K.
name: Schoepe, Wilfried
name: Uhlig, K.
name: Wiedemann, W.
Publisher: name: Universität Regensburg
Year: 1983
Subjects: subject: 530 Physik

description: In a cylindrical resonator the attenuation and the velocity of first sound in normal and superfluid 3He have been measured in the frequency range from 40 to 300 kHz and at pressures of 8, 18.8, and 28 bar. In the normal fluid the viscosity deduced from our data agrees with previously reported values; the sound velocity in this regime can be explained by taking into account mean-free-path effects and zero-sound corrections. The results for the viscosity in the superfluid confirm the previous observations of a continuous decrease down to the lowest temperatures in contradiction to theoretical predictions. The sound-velocity data in the superfluid regime indicate that specular reflection of the quasiparticles may occur at the resonator walls.
Genetic and epigenetic profiling of placental insufficiency : identifying biomarkers of preeclampsia and intrauterine growth restriction
Creators: name: Wilson, Samantha Lea
Publisher: name: University of British Columbia
Year: 2018

description: Preeclampsia (PE), characterized by maternal hypertension and proteinuria, is the leading cause of maternal and perinatal morbidity and mortality worldwide. PE can be subdivided into early-onset PE (EOPE), diagnosis <34 weeks, and late-onset PE (LOPE), diagnosis ≤34 weeks. Intrauterine growth restriction (IUGR), pathologically poor fetal growth, often co-occurs with PE. Both conditions are thought to be due to the placenta, the organ responsible for oxygen and nutrient transport to the fetus, not functioning adequately; this is referred to as placental insufficiency (PI). Currently there is no consistent clinical test to predict pregnancies at risk of these conditions. This dissertation investigated placental genetic and epigenetic profiles to assess their utility to identify novel protein biomarkers in maternal blood and to subclassify PE and IUGR placentas. DNA methylation (DNAm) in the placenta at delivery correlated to second trimester Inhibin alpha and third trimester fibronectin levels in maternal blood, indicating that DNAm alterations may be useful to identify novel biomarkers. Widespread DNAm alterations were identified in EOPE placentas, many of which validated in an independent cohort. These changes can be used to refine clinical diagnoses. Placental DNAm signatures can help to refine clinical diagnoses to create more homogenous pathological groups, aiding in more robust predictive algorithms for PI conditions. Telomere length (TL) was also assessed as a potential biomarker, as it has been reported altered in placentas of PE and IUGR pregnancies. This is thought to be due to the hypoxic environment iii associated with PI which results in DNA damage, and shortened TL. However, correcting for placental gestational age and fetal sex, TL was not shorter in LOPE or IUGR in our population. EOPE placentas trended towards shorter TL (p=0.1). Overall, these studies found that TL is not likely to be an informative marker of PI. These studies show the potential utility of DNAm in identifying novel protein biomarkers in maternal blood, refining clinical diagnoses to create more homogenous subtypes of PI, or as a potential biomarker itself for identifying pregnancies at risk of PI conditions.
Asymptotics of eigenvalues for an energy operator of the one model of quantum physics
Creators: name: Yanovich, Eduard
Publisher: name: arXiv
Year: 2010
Subjects: subject: Spectral Theory (math.SP)
subject: Mathematical Physics (math-ph)
subject: FOS: Mathematics
subject: FOS: Physical sciences

description: In this paper we consider eigenvalues asymptotics of the energy operator in the one of the most interesting models of quantum physics, describing an interaction between two-level system and harmonic oscillator. The energy operator of this model can be reduced to some class of infinite Jacobi matrices. Discrete spectrum of this class of operators represents the perturbed spectrum of harmonic oscillator. The perturbation is an unbounded operator compact with respect to unperturbed one. We use slightly modified Janas-Naboko successive diagonalization approach and some new compactness criteria for infinite matrices. Two first terms of eigenvalues asymptotics and the estimation of remainder are found.
description: 11 pages
Two-dimensional Finite Larmor Radius approximation in canonical gyrokinetic coordinates
Creators: name: Mouton, Alexandre
name: Frenod, Emmanuel
Publisher: name: arXiv
Year: 2010
Subjects: subject: Numerical Analysis (math.NA)
subject: Analysis of PDEs (math.AP)
subject: Plasma Physics (physics.plasm-ph)
subject: FOS: Mathematics
subject: FOS: Physical sciences

description: In this paper, we present some new results about the approximation of the Vlasov-Poisson system with a strong external magnetic field by the 2D finite Larmor radius model. The proofs within the present work are built by using two-scale convergence tools, and can be viewed as a new slant on previous works of Frénod and Sonnendrücker and Bostan on the 2D finite Larmor Radius model. In a first part, we recall the physical and mathematical contexts. We also recall two main results from previous papers of Frénod and Sonnendrücker and Bostan. Then, we introduce a set of variables which are so-called canonical gyrokinetic coordinates, and we write the Vlasov equation in these new variables. Then, we establish some two-scale convergence and weak-* convergence results.
The influence of physical habitat structure on invertebrate drift and Pacific salmon production in forest streams
Creators: name: Naman, Sean Murphy
Publisher: name: University of British Columbia
Year: 2017

description: Untangling the mechanisms linking the physical world to ecological processes is paramount for effectively conserving and restoring habitat for threatened species. Pacific salmon rearing in small streams have been particularly well studied in this regard given that physical habitat features (e.g., velocity) strongly influence their performance and that habitat alteration is a major cause of their decline in many areas. However, despite strong evidence that stream salmonids are food limited, we lack commensurate understanding of how habitat influences their food supply - suspended invertebrates drifting downstream (invertebrate drift). Consequently, the mechanisms linking physical habitat structure to salmonid production remain unclear. My dissertation attempts to address this issue. First, in Chapter 2, I review and synthesize the mechanisms underlying invertebrate drift, discuss potential caveats in methodology, and identify key knowledge gaps. I particularly highlight how the physical and behavioural processes governing drift entry are highly dependent on context-specific abiotic and biotic attributes (e.g., hydraulics, individual condition). In Chapter 3, I use flow manipulation experiments to show that some of this context dependency can be explained by considering behavioural and morphological traits of invertebrate taxa, which underlie their tendencies to drift behaviourally or passively; for instance, body shape predicted the magnitude of responses to increased flows. In Chapter 4, I show that aggregate community-level drift rates vary spatially in streams over scales relevant to individual drift-feeding salmonids. Specifically, I measured spatially explicit rates of drift production, demonstrating that shallow high velocity riffles and deep low velocity pools form distinct sources and sinks of drift within stream networks. In Chapter 5 I build on this result to show that drift generation in riffles coupled with strong preferences for low velocity pools by salmonids leads to maximum fish production occurring in habitats with intermediate ratios of pool-riffle areas; in essence, a trade-off between increasing space but declining food as pool area increases. I extend these results with bioenergetic simulations to show that the shape of this trade-off is sensitive to alternative modes of prey delivery (e.g., aerial inputs of terrestrial invertebrates), which may be decoupled from in-stream habitat conditions.
Spin–orbit based coherent spin ratchets
Creators: name: Scheid, Matthias
name: Bercioux, Dario
name: Richter, Klaus
Publisher: name: Universität Regensburg
Year: 2010
Subjects: subject: Ratchets, Spin electronics, Mesoscopic quantum transport
subject: 530 Physik
subject: 73.23.-b, 05.60.Gg, 72.25.-b CS

description: The concept of ratchets, driven asymmetric periodic structures giving rise to directed particle flow, has recently been generalized to a quantum ratchet mechanism for spin currents mediated through spin–orbit interaction. Here we consider such systems in the coherent mesoscopic regime and generalize the proposal of a minimal spin ratchet model based on a non-interacting clean quantum wire with two transverse channels by including disorder and by self-consistently treating the charge redistribution in the nonlinear (adiabatic) ac-driving regime. Our Keldysh–Green function based quantum transport simulations show that the spin ratchet mechanism is robust and prevails for disordered, though non-diffusive, mesoscopic structures. Extending the two-channel to the multi-channel case does not increase the net ratchet spin current efficiency but, remarkably, yields a dc spin transmission increasing linearly with channel number.
Non-ohmic conduction in doped polyacetylene at low temperatures
Creators: name: Chaabane, H.
name: Ettlinger, E.
name: Schoepe, Wilfried
Publisher: name: Universität Regensburg
Year: 1986
Subjects: subject: 530 Physik

description: The electrical conductivity of a iodine-doped polyacetylene is measured as a function of the electric field Escr at temperatures between 4K and 0.3K. We find that after an initial non-linear behavior sgr increases linearly with Escr in agreement with a theoretical description based on variable-range hopping conduction. The non-linear rise at low fields depends on the iodine concentration. In heavily doped samples the increase is small and varies as Escr2, whereas in less conductive samples a large change is observed at 0.3K which varies approximately as log Escr for fields from 1 V/m to 150 V/m.
Additional file 1 of Healthy lifestyle, metabolomics and incident type 2 diabetes in a population-based cohort from Spain
Creators: name: Delgado-Velandia, Mario
name: Gonzalez-Marrachelli, Vannina
name: Domingo-Relloso, Arce
name: Galvez-Fernandez, Marta
name: Grau-Perez, Maria
name: Olmedo, Pablo
name: Galan, Iñaki
name: Rodriguez-Artalejo, Fernando
name: Amigo, Nuria
name: Briongos-Figuero, Laisa
name: Redon, Josep
name: Martin-Escudero, Juan Carlos
name: Monleon-Salvado, Daniel
name: Tellez-Plaza, Maria
name: Sotos-Prieto, Mercedes
Publisher: name: figshare
Year: 2022
Subjects: subject: Biochemistry
subject: Medicine
subject: Genetics
subject: FOS: Biological sciences
subject: Biotechnology
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: Immunology
subject: FOS: Clinical medicine
subject: 19999 Mathematical Sciences not elsewhere classified
subject: FOS: Mathematics
subject: Marine Biology
subject: Cancer
subject: Science Policy
subject: 60506 Virology

description: Additional file 1. Additional findings that further support and/or give further detail to the main results.
Siedlungsmanagement: Ein Handlungsfeld für die Soziokulturelle Animation: Die Anwendungen der Grundsätze und Handlungsansätze der Soziokulturellen Animation in Mietwohn-Siedlungen
Creators: name: Wattenhofer, Linus
name: van Heerden Borowski, Alexandra
Publisher: name: Zenodo
Year: 2019

description: In der vorliegenden Bachelorarbeit „Siedlungsmanagement: Ein Handlungsfeld für die Soziokulturelle Animation“ untersuchen Alexandra van Heerden Borowski und Linus Wattenhofer die mögliche Eingliederung der Grundsätze und Methoden der Soziokulturellen Animation (SKA) in die Betreuung von Mietwohn-Siedlungen. Dafür werden zu Beginn die gängigsten Mietwohn-Formen in der Schweiz erläutert und deren Beeinflussung durch den gesellschaftlichen Wandel aufgezeigt. Weiter werden die wichtigsten Ziele und Fokussierungen mit Hilfe der fünf Grundsätze der SKA dargestellt, welche in der Betreuung des gelingenden Zusammenlebens in Siedlungen zum Tragen kommen können. Anhand der Forschungsfragen wird die Anwendbarkeit der Grundsätze und Handlungsansätze der SKA durch sechs Interviews mit Personen in verschiedenen Verwaltungs- und Betreuungsfunktionen von genossenschaftlich sowie privatwirtschaftlich verwalteten Mietwohnsiedlungen erhoben und qualitativ ausgewertet. Diese Auswertung führt die Autorenschaft schlussendlich zum Fazit, dass eine Professionalisierung der Siedlungsbetreuung, optimalerweise durch professionelle Angestellte der SKA, positive Auswirkungen für alle Akteure mit ihren unterschiedlichen Motivationen hat.
description: + Code Diss LU: hslusa bask 2019 + Fussnote: Bachelorarbeit, Hochschule Luzern - Soziale Arbeit, Ausbildungsgang Soziokultur, 2019
Adjoint torelons, and the persistence of color electric flux tubes in the deconfined phase
Creators: name: Greensite, J.
name: Olejnik, S.
Publisher: name: arXiv
Year: 2011
Subjects: subject: High Energy Physics - Lattice (hep-lat)
subject: FOS: Physical sciences

description: It is argued that the adjoint torelon loop, i.e. a Polyakov loop in the adjoint representation running in a spatial, rather than temporal, direction, is an observable which is sensitive to the presence of long color electric flux tubes at high temperatures. We show via lattice Monte Carlo simulations that this observable has a sharp peak at the deconfinement transition, remains much larger than the vacuum value for some range of $T>T_c$, and falls below the vacuum value for $T > 2T_c$. This result suggests that long electric flux tubes may persist for a finite range of temperatures past the deconfinement transition, and at some stage disappear, presumably melting into a plasma of gluons. As a side remark, we point out that our results at $T
description: 6 pages, 4 figures
Positive ion mobility in normal and superfluid 3He
Creators: name: Kokko, J.
name: Paalanen, M. A.
name: Schoepe, Wilfried
name: Takano, Y.
Publisher: name: Universität Regensburg
Year: 1978
Subjects: subject: 530 Physik

description: The mobility of positive ions has been measured in the normal and superfluid phases of 3He at several pressures. Below 100 mK the normal phase mobility increases logarithmically with decreasing temperature down to the superfluid transition temperature T c; it shows an anomalous jump near 100 mK. At low temperatures the drift velocity is nonlinear for electric fields exceeding 30 V/cm. In the superfluid the mobility, normalized to its value at T c, is much less than for negative ions. We have also observed the anisotropic mobility in the A phase and the Landau critical velocity for pair-breaking in both superfluid phases.
Estadisticas NIH
Creators: name: Carbajo Fernandez, Paula
name: Murillo Aguilar, Flora Patricia
Publisher: name: Zenodo
Year: 2025

description: CSV que contiene datos estadísticos de diferentes tipos de cancer recabados del Instituto Nacional del Cancer. Los datos que contiene son Tipo de cancer, Estimated New Cases in 2024, % of All New Cancer Cases,Estimated Deaths in 2024, % of All Cancer Deaths, 5-Year Relative Survival para 44 registros.
X-ray Shadowing Experiments Toward Infrared Dark Clouds
Creators: name: Anderson, Loren D.
name: Snowden, Steve L.
name: Bania, Thomas M.
Publisher: name: arXiv
Year: 2010
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: We searched for X-ray shadowing toward two infrared dark clouds (IRDCs) using the MOS detectors on XMM-Newton to learn about the Galactic distribution of X-ray emitting plasma. IRDCs make ideal X-ray shadowing targets of 3/4 kev photons due to their high column densities, relatively large angular sizes, and known kinematic distances. Here we focus on two clouds near 30 deg. Galactic longitude at distances of 2 and 5 kpc from the Sun. We derive the foreground and background column densities of molecular and atomic gas in the direction of the clouds. We find that the 3/4 kev emission must be distributed throughout the Galactic disk. It is therefore linked to the structure of the cooler material of the ISM, and to the birth of stars.
description: Accepted to ApJ
Conduction mechanism in granular Ru02-based thick-film resistors
Creators: name: Schoepe, Wilfried
Publisher: name: Universität Regensburg
Year: 1990
Subjects: subject: 530 Physik

description: The conductivity of a commercial thick-film resistor is measured between 4 K and 15 mK and in magnetic fields up to 7 Tesla. The data can be described by the variable-range hopping mechanism with a Coulomb gap in the density of states. The negative magnetoresistance may be attributed to quantum-interference effects in the strongly localized regime.
Ground-based CCD astrometry with wide field imagers. IV. An improved Geometric Distortion Correction for the Blue prime-focus Camera at the LBT
Creators: name: Bellini, A.
name: Bedin, L. R.
Publisher: name: arXiv
Year: 2010
Subjects: subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: FOS: Physical sciences

description: High precision astrometry requires an accurate geometric distortion solution. In this work, we present an average correction for the Blue Camera of the Large Binocular Telescope which enables a relative astrometric precision of ~15 mas for the B_Bessel and V_Bessel broad-band filters. The result of this effort is used in two companion papers: the first to measure the absolute proper motion of the open cluster M67 with respect to the background galaxies; the second to decontaminate the color-magnitude diagram of M67 from field objects, enabling the study of the end of its white dwarf cooling sequence. Many other applications might find this distortion correction useful.
description: 13 pages, 11 figures, 4 tables. accepted for publication on Astronomy and Astrophysics
Additional file 1 of Evidence of telomere attrition and a potential role for DNA damage in systemic sclerosis
Creators: name: Usategui, Alicia
name: Municio, Cristina
name: Arias-Salgado, Elena G.
name: Martín, María
name: Fernández-Varas, Beatriz
name: Del Rey, Manuel J.
name: Carreira, Patricia
name: González, Antonio
name: Criado, Gabriel
name: Perona, Rosario
name: Pablos, José L.
Publisher: name: figshare
Year: 2022
Subjects: subject: Medicine
subject: Cell Biology
subject: Genetics
subject: FOS: Biological sciences
subject: Molecular Biology
subject: Physiology
subject: Ecology
subject: Immunology
subject: FOS: Clinical medicine
subject: 69999 Biological Sciences not elsewhere classified
subject: Developmental Biology

description: Additional file 1. Clinical definitions included in Table 2.
Viscometer utilizing a floating charged magnetic particle
Creators: name: Gloos, K.
name: Koivuniemi, J. H.
name: Schoepe, Wilfried
name: Simola, J. T.
name: Tuoriniemi, J. T.
Publisher: name: Universität Regensburg
Year: 1990
Subjects: subject: 530 Physik

description: A new type of high sensitivity viscometer is presented, reaching Q-values of up to one million at 0.3 kHz resonance frequency. Possible applications to thermometry and for the creation and detection of vortex rings in superfluid helium are discussed.
Modeling Network Coded TCP Throughput: A Simple Model and its Validation
Creators: name: Kim, MinJi
name: Medard, Muriel
name: Barros, Joao
Publisher: name: arXiv
Year: 2010
Subjects: subject: Information Theory (cs.IT)
subject: Networking and Internet Architecture (cs.NI)
subject: FOS: Computer and information sciences

description: We analyze the performance of TCP and TCP with network coding (TCP/NC) in lossy wireless networks. We build upon the simple framework introduced by Padhye et al. and characterize the throughput behavior of classical TCP as well as TCP/NC as a function of erasure rate, round-trip time, maximum window size, and duration of the connection. Our analytical results show that network coding masks erasures and losses from TCP, thus preventing TCP's performance degradation in lossy networks, such as wireless networks. It is further seen that TCP/NC has significant throughput gains over TCP. In addition, we simulate TCP and TCP/NC to verify our analysis of the average throughput and the window evolution. Our analysis and simulation results show very close concordance and support that TCP/NC is robust against erasures. TCP/NC is not only able to increase its window size faster but also to maintain a large window size despite losses within the network, whereas TCP experiences window closing essentially because losses are mistakenly attributed to congestion.
description: 9 pages, 12 figures, 1 table, submitted to IEEE INFOCOM 2011
GRB spectral parameters within the fireball model
Creators: name: Fleishman, Gregory D.
name: Urtiev, Fedor A.
Publisher: name: arXiv
Year: 2010
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: Fireball model of the GRBs predicts generation of numerous internal shocks, which then efficiently accelerate charged particles and generate magnetic and electric fields. These fields are produced in the form of relatively small-scale stochastic ensembles of waves, thus, the accelerated particles diffuse in space due to interaction with the random waves and so emit so called Diffusive Synchrotron Radiation (DSR) in contrast to standard synchrotron radiation they would produce in a large-scale regular magnetic fields. In this paper we present first results of comprehensive modeling of the GRB spectral parameters within the fireball/internal shock concept. We have found that the non-perturbative DSR emission mechanism in a strong random magnetic field is consistent with observed distributions of the Band parameters and also with cross-correlations between them; this analysis allowed to restrict GRB physical parameters from the requirement of consistency between the model and observed distributions.
description: 14 pages, 17 figures, MNRAS in press