cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
The targum (1879:Oct.)
Creators: name: No Name Supplied
Publisher: name: Targum Association
Year: 1879

description: Some University historians indicate that the Targum was first published as an annual in 1867, but of this we have no extant evidence. In January 1869, the Targum as we now know it, made its appearance as a monthly paper that concerned itself with student “literary contributions” and college news as well as serving as a vehicle for bringing news to alumni and the general public. The newspaper, which originally was for sale, varied in frequency over the years as did its title (The Targum, Rutgers Targum, Rutgers Daily Targum, and Daily Targum). The newspaper has continuously been published since 1869 with the exception of 19 months during the second world war, between February 1944 and October 1945. The Targum was published by the students of Rutgers College, and later Rutgers University—New Brunswick represented through the years as the Targum Association, Rutgers Targum Association, and Rutgers College Targum. As a student organization, the Targum operated under the oversight of the dean of students and student government but in October 1980, the Targum became an independent college paper.
Possibility of generalized monogamy relations for multipartite entanglement beyond three qubits
Creators: name: Eltschka, Christopher
name: Osterloh, Andreas
name: Siewert, Jens
Publisher: name: Universität Regensburg
Year: 2009
Subjects: subject: quantum information, qubit, entanglement, multipartite entanglement, monogamy equality
subject: 530 Physik
subject: 03.67.Mn, 03.65.Ud

description: We discuss the possibility to interpret the residual entanglement for more than three qubits in terms of distributed multipartite entanglement or, in other words, possible extensions of the Coffman-Kundu-Wootters monogamy equality to higher qubit numbers. Existing knowledge on entanglement in multipartite systems puts narrow constraints on the form of such extensions. We study various examples for families of pure four-qubit states for which the characterization of three-qubit and four-qubit entanglement in terms of polynomial invariants is known. These examples indicate that, although families with such extensions do exist, a generalized monogamy equality cannot be found along those lines.
Spin-orbit coupling induced by effective mass gradient
Creators: name: Matos-Abiague, Alex
Publisher: name: Universität Regensburg
Year: 2010
Subjects: subject: spin-orbit coupling, mass gradient, k.p theory, semiconductor heterostructures, structure inversion asymmetry
subject: 530 Physik
subject: 71.70.EJ
subject: 73.61.Ey
subject: 73.20.Qt
subject: 73.21.Fg

description: The existence of a spin-orbit coupling (SOC) induced by the gradient of the effective mass in low-dimensional heterostructures is revealed. In structurally asymmetric quasi-two-dimensional semiconductor heterostructures the presence of a mass gradient across the interfaces results in a SOC which competes with the SOC created by the electric field in the valence band. However, in graded quantum wells subjected to an external electric field, the mass-gradient induced SOC can be finite even when the electric field in the valence band vanishes.
Characterizing the secretion and function of TcfA : a unique autotransporter and virulence factor in Bordetella pertussis
Creators: name: Doebel-Hickok, Monte
Publisher: name: University of British Columbia
Year: 2018

description: Autotransporters (ATs) are an important family of proteins that are essential for the virulence of a variety of Gram-negative bacteria. The vast majority of ATs possess a classical right handed β-helical structure which facilitates the vectorial secretion of the protein. However, not all ATs possess this classical structure. Tracheal colonization factor (TcfA) of B. pertussis is one of only a few ATs that are predicted to be relatively unstructured or to possess a coil structure. It is not known what factors are important for the secretion of non- β-helical ATs. This study sought to characterize the secretion of TcfA which could also reveal more broadly applicable requirements for the secretion of ATs and other surface exposed proteins. This thesis characterized the secretion of TcfA both in E. coli as well as in B. pertussis. The study determined that TcfA has special secretion requirements that are not met when the protein is expressed in E. coli. The unique B. pertussis chaperone Par27 was identified as an important factor for secretion via both its disruption in B. pertussis as well as via its insertion in E. coli. However, it was also determined that there are additional factors that E. coli is lacking that are important for the secretion of TcfA. The study also sought to characterize potential virulence functions of TcfA. It is known that TcfA contributes to the pathogenesis of B. pertussis, but its specific role remains to be elucidated. This study used modeling to provide support for the theory that TcfA binds Factor H in B. pertussis. However, a factor H surface binding assay determined that TcfA is not the only factor that binds the complement regulatory protein Factor H in B. pertussis. Another uniquely structured AT, BapB, was hypothesized as the potential additional factor that binds Factor H. However, additional studies are required to determine the importance of BapB. Furthermore, the study determined that TcfA does not play a large role in the serum survival of B. pertussis. In summary, this thesis characterized the secretion and some potential virulence functions of TcfA, but it also raised many additional questions.
Casimir repulsion in moving media
Creators: name: Maslovski, Stanislav I.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Casimir-Lifshitz interaction emerging from relative movement of layers in stratified dielectric media (e.g., non-uniformly moving fluids) is considered. It is shown that such movement may result in a repulsive Casimir-Lifshitz force exerted on the layers, with the simplest possible structure consisting of three adjacent layers of the same dielectric medium, where the middle one is stationary and the other two are sliding along a direction parallel to the interfaces of the layers.
description: 22 pages, 10 figures
The Distribution of Warm Ionized Medium in Galaxies
Creators: name: Haffner, L. M.
Publisher: name: arXiv
Year: 2010
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: Ionized nebulae have been targets of interest since the introduction of the telescope centuries ago. These isolated, "classical" H II regions gave us some of the earliest insight into the copious feedback energy that stars inject into the interstellar medium. Their unique spectra contain information about the quality and quantity of the ionizing field as well as the temperature, density, and metallicity of these discrete locations in the Galaxy. With increasing sensitivity across many spectral domains, we now know that ionized gas is not localized to massive star regions in many star-forming galaxies. In particular, recent observational studies allow a thorough comparison of the physical conditions and distribution of the well-studied classical H II regions to the more widespread warm, diffuse gas. By more realistically evolving a dynamic interstellar medium, models are beginning to reproduce the observed emission measure variations and provide a natural solution to the propagation of ionizing flux from a predominantly neutral galactic disk to the distant halo.
description: 11 pages, 3 figures. To appear in "The Dynamic ISM: A celebration of the Canadian Galactic Plane Survey," ASP Conference Series
Evidence for a black-hole in the X-ray transient XTE J1859+226
Creators: name: Corral-Santana, J. M.
name: Casares, J.
name: Shahbaz, T.
name: Zurita, C.
name: Martínez-Pais, I. G.
name: Rodríguez-Gil, P.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: We present the results of time-resolved optical photometry and spectroscopy of the X-ray transient XTE J1859+226 (V406 Vul). Photometric observations taken during 2000 and 2008 reveals the presence of the secondary star's ellipsoidal modulation. Further photometry obtained in 2010 shows the system ~1 mag brighter than its quiescence level and the ellipsoidal modulation diluted by strong flaring activity. Spectroscopic data obtained with the 10.4-m GTC in 2010 reveals radial velocity variations of ~500 km/s over 3 h. A simultaneous fit to the photometry and spectroscopy using sinusoids to represent the secondary star's ellipsoidal and radial velocity variations, yields an orbital period of 6.58+-0.05 h and a secondary star's radial velocity semi-amplitude of K_2= 541+-70 km/s. The implied mass function is f(M)=4.5+-0.6 Msun, significantly lower than previously reported but consistent with the presence of a black hole in XTE J1859+226. The lack of eclipses sets an upper limit to the inclination of 70 degrees which yields a lower limit to the black hole mass of 5.42 Msun.
description: Accepted for publication in MNRAS. Contains 5 pages and 4 figures
QISHLOQ XO'JALIGI TERMINOLOGIYASIGA BAG'ISHLANGAN  "TAIYANGHUA" XITOY TILI TO'GARAGI, UNDAGI DARS JARAYONLAR VA NATIJALAR
Creators: name: Xaqnazarova, Umida
Publisher: name: Zenodo
Year: 2023

description: Ushbu maqolada "Yosh ipakchilar" to'garagi qoshida ochilgan, shuningdek, Qishloq xo'jaligi terminologiyasiga bag'ishlangan "Taiyanghua" xitoy tili to'garagida o'qitish jarayonlari, Xitoydagi maktablarda ta'lim berishda ko'plab uchraydigan uyqu metodining afzalliklari haqida so'z boradi.
Helium flux and its ratio to proton flux in cosmic rays measured with CALET on the International Space Station
Creators: name: Adriani, Oscar
name: Akaike, Yosui
name: Asano, Katsuaki
name: Aaoka, Yoichi
name: Berti, Eugenio
name: Bigongiari, Gabriele
name: Binns, Walter Robert
name: Bongi, Massimo
name: Brogi, Paolo
name: Bruno, Alessandro
name: Cannady, Nicholas
name: Castellini, Guide
name: Checchia, Caterina
name: Cherry, Walter Robert
name: Collazuol, Gianmaria
name: De Nolfo, Georgia A.
name: Ebisawa, Ken
name: Ficklin, Anthony W.
name: Fuke, Hideyuki
name: Gonzi, Sandro
name: Guzik, T. Gregory
name: Hams, Thomas
name: Hibino, Kinya
name: Ichimura, Masakatsu
name: Ioka, Kunihito
name: Ishizaki, Wataru
name: Israel, Martin H.
name: Kasahara, Katsumasa
name: Kataoka, Jun
name: Kataoka, Ryuho
name: Katayose, Yusaku
name: Kato, Chihiro
name: Kawanaka, Norita
name: Kawakubo, Yuta
name: Kobayashi, Kenko
name: Kohri, Kazunori
name: Krawczynski, Henric S.
name: Krizmanic, John F.
name: Maestro, Paolo
name: Marrocchesi, Pier Simone
name: Messineo, Alberto Maria
name: Mitchell, Jason W.
name: Miyake, Shoko
name: Moiseev, Alexander
name: Mori, Masaki
name: Mori, Nicola
name: Motz, Holger Martin
name: Munakata, Kazuoki
name: Nakahira, Satoshi
name: Nishimura, Jun
name: Okuno, Shoji
name: Ormes, Jonathan
name: Ozawa, Shunsuke
name: Pacini, Lorenzo
name: Pacini, Paolo
name: Rauch, Brian Flint
name: Ricciarini, Ricciarini
name: Sakai, Kazuhiro
name: Sakamoto, Takanori
name: Sasaki, Makoto
name: Shimizu, Yuki
name: Shiomi, Atsushi
name: Spillantini, Piero
name: Stolzi, Francesco
name: Sugita, Satoshi
name: Sulaj, Arta
name: Takita, Masato
name: Tamura, Tadahisa
name: Terasawa, Toshio
name: Torii, Shoji
name: Tsunesada, Yoshiki
name: Uchihori, Yukio
name: Vannuccini, Elena
name: Wefel, John P.
name: Yamaoka, Kazutaka
name: Yanagita, Shohei
name: Yoshida, Atsumasa
name: Yoshida, Kenji
name: Zober, Wolfgang V.
Publisher: name: Proceedings of Science
Year: 2023

description: 38th International Cosmic Ray Conference (ICRC2023), 26 July - 3 August, 2023, Nagoya, Japan
description: The CALorimetric Electron Telescope (CALET) is a space-based calorimetric instrument, designed to carry out precision measurements of high energy cosmic rays. Installed on the Japanese Experiment Module - Exposed Facility on the ISS, it is collecting data with excellent performance and no significant interruptions since October 2015. We present the results of a direct measurement of the energy spectrum of cosmic-ray helium, based on about 6.5 years of collected data. It shows significant deviations from a single power law with a progressive hardening around a few hundred GeV followed by a softening in the multi-TeV region. A measurement of the proton to helium flux ratio is also presented. Thanks to the recent update of the CALET proton flux with higher statistics, the p/He ratio is measured with high precision, extending the energy reach of previous measurements with magnetic spectrometers by more than one order of magnitude.
Forecasting of West Nile epidemics using Google Trends: US state-specific search behavior
Creators: name: Champion, Cody
name: Jiannong Xu
Publisher: name: F1000 Research Limited
Year: 2019

description: We use a previously described method to forecast West Nile virus (WNV) cases based on ARMA models using data obtained from Google Trends (GTs) and the CDC from 2015 to 2016.  We find USA state-specific behavior of this model.
Bolometric and non-bolometric radio frequency detection in a metallic single-walled carbon nanotube
Creators: name: Santavicca, Daniel F.
name: Chudow, Joel D.
name: Prober, Daniel E.
name: Purewal, Meninder S.
name: Kim, Philip
Publisher: name: arXiv
Year: 2011
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We characterize radio frequency detection in a high-quality metallic single-walled carbon nanotube. At a bath temperature of 77 K, only bolometric (thermal) detection is seen. At a bath temperature of 4.2 K and low bias current, the response is due instead to the electrical nonlinearity of the non-ohmic contacts. At higher bias currents, the contacts recover ohmic behavior and the observed response agrees well with the calculated bolometric responsivity. The bolometric response is expected to operate at terahertz frequencies, and we discuss some of the practical issues associated with developing high frequency detectors based on carbon nanotubes.
description: 11 pages (double-spaced), 3 figures
Aspects of Magnetic Field Configurations in Planar Nonlinear Electrodynamics
Creators: name: De Assis, L. P. G.
name: Gaete, Patricio
name: Helaÿel-Neto, José A.
name: Vellozo, S. O.
Publisher: name: arXiv
Year: 2010
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: In the framework of three-dimensional Born-Infeld Electrodynamics, we pursue an investigation of the consequences of the space-time dimensionality on the existence of magnetostatic fields generated by electric charges at rest in an inertial frame, which are present in its four-dimensional version. Our analysis reveals interesting features of the model. In fact, a magnetostatic field associated with an electric charge at rest does not appear in this case. Interestingly, the addition of the topological term (Chern-Simons) to Born-Infeld Electrodynamics yields the appearance of the magnetostatic field. We also contemplate the fields associated to the would-be-magnetic monopole in three dimensions.
description: 8 pages
A functional and prognostic study of the transcription factor SIX1 in melanoma
Creators: name: Graziano, Laura
Publisher: name: University of British Columbia
Year: 2018

description: This study focuses on melanoma, a cancer of pigment-producing cells within the skin (melanocytes) which insidiously spreads (metastasizes) throughout the body. This devastating disease often prevents patients from living beyond five years from diagnosis. Treatment options for melanoma are inept, which has necessitated a demand for research on the molecular mechanisms of melanoma to aid in the development of novel therapeutic targets and treatments. The gene Sineoculis homeobox homolog 1 (SIX1) encodes for a homeoprotein transcription factor which is an important developmental regulator during embryogenesis. A preliminary microarray analysis found that SIX1 was upregulated in melanoma. The purpose of this study was to pioneer the assessment of SIX1 in melanoma, including its role in the metastatic functions of melanoma in vitro as well as its clinical relevance. The specific aims included: (1) to assess SIX1 expression in melanoma cell lines and clinical samples; (2) to investigate the functional significance and pathogenic role of Six1 in vitro; and (3) to evaluate Six1’s clinical significance in relation to prognosis and clinicopathological characteristics. Cell lines and clinical samples were tested for SIX1 transcript level using qPCR and protein level using Western Blotting. Next, two malignant melanoma cell lines were transfected with shRNA plasmids to generate stable clones with low Six1 expression. These altered cell lines were used to study the functional implications of Six1 expression disparities in vitro. Furthermore, immunohistochemistry against Six1 was performed on a tissue microarray of 438 melanoma patient biopsies. We discovered that SIX1 was overexpressed in melanoma cell lines and clinical samples. Six1 knockdown cells demonstrated diminished cell growth and proliferation, increased apoptosis, and decreased migration and invasion. We also found that a profound nuclear to cytoplasmic shift of Six1 accompanied melanoma progression and correlated with poor five-year survival. Higher cytoplasmic Six1 was associated with increased tumor thickness, lower nuclear Six1 with ulceration and histological satellitosis, and both with advanced AJCC stages and nodular melanoma. To summarize, these results hint that Six1 may play a role in the execution of metastatic functions in melanoma. Furthermore, Six1 presents as a tentative candidate for a prognostic marker in patient biopsies.
Featureless 2D-3D Pose Estimation by Minimising an Illumination-Invariant Loss
Creators: name: Jayawardena, Srimal
name: Hutter, Marcus
name: Brewer, Nathan
Publisher: name: arXiv
Year: 2010
Subjects: subject: Computer Vision and Pattern Recognition (cs.CV)
subject: FOS: Computer and information sciences

description: The problem of identifying the 3D pose of a known object from a given 2D image has important applications in Computer Vision ranging from robotic vision to image analysis. Our proposed method of registering a 3D model of a known object on a given 2D photo of the object has numerous advantages over existing methods: It does neither require prior training nor learning, nor knowledge of the camera parameters, nor explicit point correspondences or matching features between image and model. Unlike techniques that estimate a partial 3D pose (as in an overhead view of traffic or machine parts on a conveyor belt), our method estimates the complete 3D pose of the object, and works on a single static image from a given view, and under varying and unknown lighting conditions. For this purpose we derive a novel illumination-invariant distance measure between 2D photo and projected 3D model, which is then minimised to find the best pose parameters. Results for vehicle pose detection are presented.
description: 18 LaTeX pages, 7 figures
Redox state affects fecundity and insecticide susceptibility in Anopheles gambiae
Creators: name: Champion, Cody
name: Jiannong Xu
Publisher: name: F1000 Research Limited
Year: 2019

description: Redox homeostasis in mosquitoes is vital to several traits such as insecticide resistance and fecundity via a mechanism that involves the usage of a common substrate.
Gluon form factor of the proton from QCD sum rules
Creators: name: Braun, Vladimir M.
name: Górnicki, P.
name: Mankiewicz, L.
name: Schäfer, Andreas
Publisher: name: Universität Regensburg
Year: 1993
Subjects: subject: 530 Physik

description: We discuss the possibility to estimate hadronic matrix elements of gluonic operators in the framework of the QCD sum rule approach and consider in detail the particular example of the gluon form factor of the proton, normalized at Q2=0 to the fraction of the proton momentum carried by gluons. To this end we evaluate the proton coupling to a suitable quark-quark-quark-gluon current and calculate the three-point correlation function of a pair of such currents and the traceless part of the gluonic contribution to the energy-momentum tensor. We obtain a rather slow Q2-dependence of this form factor, which corresponds to the radius of the gluon distribution Rreverse similar, equals0.3−0.35 fm and is much smaller than the electromagnetic radius.
Exclusive radiativeB-decays in the light-cone QCD sum rule approach
Creators: name: Ahmed, Ali
name: Braun, Vladimir M.
name: Simma, H.
Publisher: name: Universität Regensburg
Year: 1994
Subjects: subject: 530 Physik

description: We carry out a detailed study of exclusive radiative rareB-decays in the framework of the QCD sum rules on the light cone, which combines the traditional QCD sum rule technique with the description of final state vector mesons in terms of the light-cone wave functions of increasing twist. Our calculation is restricted to the leading twist-two operators. The decays considered are:B u,d rarrK* +gamma,B u,d rarrp+gamma,B d rarrohgr+gamma and the corresponding decays of theB s mesons,B s rarrphiv+gamma andB s rarrK*+gamma. Based on our estimate of the transition form factorF 1 BrarrK* (0)=0.32±0.05, we find for the branching ratio BR(BrarrK *+gamma)=(4.8±1.5)×10–5, which is in agreement with the observed value of (4.5±1.5±0.9)×10–5 measured by the CLEO collaboration. We present detailed estimates for the ratios of the radiative decay form factors, which are then used to predict the rates for the exclusive radiativeB-decays listed above. This in principle allows the extraction of the CKM matrix element |V td| from the penguin-dominated CKM-suppressed radiative decays when they are measured. We give a detailed discussion of the dependence of the radiative transition form factors on theb-quark mass and on the momentum transfer, as well as their interrelation with the CKM-suppressed semileptonic decay form factors in Brarrrgr+ell+vell, which we also calculate in our approach.
On Estimate of Real Accuracy of EOP Prediction
Creators: name: Malkin, Zinovy
Publisher: name: arXiv
Year: 2011
Subjects: subject: Geophysics (physics.geo-ph)
subject: FOS: Physical sciences

description: To estimate real accuracy of EOP prediction real-time predictions made by the IERS Subbureau for Rapid Service and Prediction (USNO) and at the Institute of Applied Astronomy (IAA) EOP Service are analyzed. Methods of a priory estimate of accuracy of prediction are discussed.
description: 6 pp
Valleys in Minkowski space and instanton-induced cross sections
Creators: name: Balitsky, Ianko I.
name: Braun, Vladimir M.
Publisher: name: Universität Regensburg
Year: 1992
Subjects: subject: 530 Physik

description: We generalize the valley method for the calculation of instanton-induced cross sections, and reformulate it directly in the Minkowski space using the Keldysh diagram technique. The summation over all finite states is made implicit without our approach, and the fields of outgoing W-bosons are effectively taken into account by a classical field with specific analytic properties, which we call the “alien” field.
Non-classical correlations in non-Markovian continuous variable systems
Creators: name: Vasile, R.
name: Giorda, P.
name: Olivares, S.
name: Paris, M. G. A.
name: Maniscalco, S.
Publisher: name: arXiv
Year: 2010
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We consider two identical and non-interacting harmonic oscillators coupled to either two independent bosonic baths or to a common bosonic bath. Under the only assumption of weak coupling, we analyze in details the non-Markovian short time-scale evolution of intensity correlations, entanglement and quantum discord for initial two-mode squeezed-thermal vacuum states. In the independent reservoirs case we observe the detrimental effect of the environment for all these quantities and we establish a hierarchy for their robustness against the environmental noise. In the common reservoir case, for initial uncorrelated states, we find that only quantum discord can be created via interaction with the bath, while entanglement and sub shot noise intensity correlations remain absent.
description: 10 pages, 5 figures
title: Personalassistenz im Krankenhaus durch intelligente und ambiente Pflegedokumentation
Creators: name: Pinske, Daniel
name: Weyers, Benjamin
name: Luther, Wolfram
name: Stevens, Torsten
Publisher: name: DuEPublico: Duisburg-Essen Publications Online, University of Duisburg-Essen, Germany
Year: 2013

description: Die zunehmende Arbeitsbelastung des Pflegepersonals im Krankenhaus verhindert eine

Konzentration auf deren Kerntätigkeiten. Das tägliche Ausfüllen der Pflegedokumentation nimmt dabei

Zeit in Anspruch, die mit der eigentlichen Pflege sinnvoller genutzt werden kann. Das hier vorgestellte

System assistiert den Pflegekräften beim Dokumentationsvorgang, indem es die geleisteten

Pflegemaßnahmen durch Nutzung von ambienten Sensoren und einer Wissensbasis intelligent wahrnimmt

und automatisch dokumentiert. Die unaufdringliche Integration in den Pflegeprozess ist dabei ein

wichtiges Anliegen, um die Akzeptanz des Systems zu fördern.
Beyond Quantifier-Free Interpolation in Extensions of Presburger Arithmetic (Extended Technical Report)
Creators: name: Brillout, Angelo
name: Kroening, Daniel
name: Ruemmer, Philipp
name: Wahl, Thomas
Publisher: name: arXiv
Year: 2010
Subjects: subject: Logic in Computer Science (cs.LO)
subject: FOS: Computer and information sciences

description: Craig interpolation has emerged as an effective means of generating candidate program invariants. We present interpolation procedures for the theories of Presburger arithmetic combined with (i) uninterpreted predicates (QPA+UP), (ii) uninterpreted functions (QPA+UF) and (iii) extensional arrays (QPA+AR). We prove that none of these combinations can be effectively interpolated without the use of quantifiers, even if the input formulae are quantifier-free. We go on to identify fragments of QPA+UP and QPA+UF with restricted forms of guarded quantification that are closed under interpolation. Formulae in these fragments can easily be mapped to quantifier-free expressions with integer division. For QPA+AR, we formulate a sound interpolation procedure that potentially produces interpolants with unrestricted quantifiers.
description: extended version (including proofs, complete rules listings, etc) of a VMCAI 2011 proceedings version
Next-to-leading-order corrections to meson masses in the heavy quark effective theory
Creators: name: Ball, Patricia
name: Braun, Vladimir M.
Publisher: name: Universität Regensburg
Year: 1994
Subjects: subject: 530 Physik
subject: 12.39.Hg, 12.38.Cy, 12.38.Lg, 13.20.He

description: We use the QCD sum rule approach to calculate the splitting between vector and pseudoscalar mesons containing one light and one heavy quark and the kinetic energy of the heavy quark. Our result for the splitting induced by the chromomagnetic interaction agrees with the experimental data on charm and b-flavored mesons. For the matrix element of the kinetic energy operator, we obtain the value K=-(0.60±0.10) GeV2.
Admission : figuring the early modern theatre
Creators: name: Preus, Eve
Publisher: name: University of British Columbia
Year: 2019

description: Drawing from theories of the theatre that interrogate the master image/metaphor of theatre-as-life, my thesis “Admission: Figuring the Early Modern Theatre” develops a poetics of admission, or a theory of early modern theatrical form that takes into account its penchant for metatheatrical device and its obsession with the incorporation of strangers. What is a stranger? What might it mean to integrate the Other into the self and into society? The theatre stages a face-to-face encounter between two ostensible strangers—the performers and the audience. At the level of the medium, then, is an interest in the ways we come to know and let others in. The early modern stage was extremely interested in this process, self-consciously experimenting with, interrogating, and evaluating the tensions and possibilities inherent in the articulation of the human via live illusion. While the influx and management of strangers were growing concerns in the burgeoning metropolis of early modern London, the theatre became a sight to organize these concerns in a way that, perhaps unconsciously, returned them to their metaphysical origins. My thesis examines several early modern characters that are strangers, or become strangers, within the communities of their respective play realities: the deposed King Richard II; the outcast Jewish money-lender, Shylock; the bastard son of Troy, Thersites; and the revenge tragedians and madmen, Hieronimo and Hamlet. These characters, I argue, double as constitutive elements of theatrical practice: the character that seems to pre-exist its live iteration; the actor who must embody a character; the audience who watches on the periphery; and the theatrical event as a whole, or the constructed world that recedes once the performance is over. The metatheatrical effect of these characters who double as strangers and theatrical practice is a stage whose illusions and performance conditions consistently render the process of becoming human— of being recognized and incorporated into new worlds—as a process of admission.
Semileptonic inclusive B decays and the determination of |Vub| from QCD sum rules
Creators: name: Ball, Patricia
name: Braun, Vladimir M.
name: Dosch, H. G.
Publisher: name: Universität Regensburg
Year: 1993
Subjects: subject: 530 Physik
subject: 13.20.Jf, 12.38.Lg, 11.50.Li

description: We calculate the electron spectrum of semileptonic decays of B mesons into noncharmed hadrons. The shape of the spectrum obtained from QCD sum rules is in general agreement with quark model calculations. At high electron energies the decrease of the spectrum is less steep than predicted by Altarelli et al. Our analysis yields a total decay rate Γ(B→Xueν̅ )=(6.8±2.0)×1013|Vub|2 s-1. For the spectrum integrated over electron energies in the interval 2.4 GeV≤Ee≤2.6 GeV in the laboratory frame we obtain Γ(B→Xueν̅ )=(5.0±1.6)×1012|Vub|2 s-1. Estimating all sorts of theoretical uncertainties, we obtain |Vub|=0.003±0.001 for the b→u weak transition matrix element from the new CLEO data.
On vector dominance in the decay B -> pi e anti-neutrino
Creators: name: Ball, Patricia
name: Braun, Vladimir M.
name: Dosch, H. G.
Publisher: name: Universität Regensburg
Year: 1991
Subjects: subject: 530 Physik

description: QCD sum rules strongly support the B* dominance in the form factor of the semi-leptonic decay B→πev in the whole region of the momentum transfer 0less-than-or-equals, slanttless-than-or-equals, slant(mB−mπ)2.
Form factors of semileptonic D decays from QCD sum rules
Creators: name: Ball, Patricia
name: Braun, Vladimir M.
name: Dosch, H. G.
Publisher: name: Universität Regensburg
Year: 1991
Subjects: subject: 530 Physik

description: We give a detailed QCD sum-rule analysis of the semileptonic decays D+→K̅ 0e+νe and D+→K̅ 0*e+νe. We use the standard method based on expansion in Euclidean distance as well as a new set of sum rules on the light cone. We compare the results with current experimental data and results from quark models. Special attention is paid to the t dependence of the form factors. We find from our sum-rule analysis that for the vector form factors the usual pole model approximation works perfectly well, but is not adequate for the axial-vector form factors.
Bloch-Nordsieck Cancellations beyond Logarithms in Heavy Particle Decays
Creators: name: Beneke, M.
name: Braun, Vladimir M.
name: Zakharov, V. I.
Publisher: name: Universität Regensburg
Year: 1994
Subjects: subject: 530 Physik
subject: 12.38.Cy, 12.39.Hg, 13.20.He

description: We investigate the one-loop radiative corrections to the semileptonic decay of a charged particle at finite gauge boson mass. Extending the Bloch-Nordsieck cancellation of infrared logarithms, the two subsequent nonanalytic terms are also found to vanish after eliminating the pole mass of the decaying particle in favor of a mass defined at short distances. This observation justifies the operator product expansion for inclusive decays of heavy charged particles and implies that infrared effects are suppressed by at least three powers of the heavy mass.
SLR Contribution to Investigation of Polar Motion
Creators: name: Malkin, Zinovy
Publisher: name: arXiv
Year: 2011
Subjects: subject: Geophysics (physics.geo-ph)
subject: FOS: Physical sciences

description: SLR technique has being used for determination of ERP during over twenty years. Most of results contributed to IERS are based on analysis of observations of Lageos 1&2 satellites collected at the global tracking network of about 40 stations. Now 5 analysis centers submit operative (with 2-15 days delay) solutions and about 10 analysis centers yearly contribute final (up to 23 years) ERP series. Some statistics related to SLR observations and analysis is presented and analyzed. Possible problems in SLR observations and analysis and ways of its solution are discussed.
description: 11 pp
Das elektronische Laborbuch - das "Kochbuch" fürs Institut
Creators: name: Janosch, Stephan
Publisher: name: Zenodo
Year: 2022
Subjects: Forschungsdatenmanagement
Elektronisches Laborbuch
Forschungsdaten

description: Welche Herausforderungen bringt ein elektronisches Laborbuch (ELN) mit sich? Welche Chancen bringt der Einsatz einer digitalen Lösung? Wie befähigt man Mitarbeiter das ELN zu nutzen? Welche Aktivitäten machen ein ELN dauerhaft attraktiv? Wo gibt es Anknüpfungspunkte ans Forschungsdatenmanagement?
Optical spectrum of proflavine and its ions
Creators: name: Bonaca, A.
name: Bilalbegovic, G.
Publisher: name: arXiv
Year: 2010
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: Chemical Physics (physics.chem-ph)
subject: Biomolecules (q-bio.BM)
subject: FOS: Physical sciences
subject: FOS: Biological sciences

description: Motivated by possible astrophysical and biological applications we calculate visible and near UV spectral lines of proflavine (C13H11N3, 3,6-diaminoacridine) in vacuum, as well as its anion, cation, and dication. The pseudopotential density functional and time-dependent density functional methods are used. We find a good agreement in spectral line positions calculated by two real-time propagation methods and the Lanczos chain method. Spectra of proflavine and its ions show characteristic UV lines which are good candidates for a detection of these molecules in interstellar space and various biological processes.
Instanton-induced production of QCD jets
Creators: name: Balitsky, Ianko I.
name: Braun, Vladimir M.
Publisher: name: Universität Regensburg
Year: 1995
Subjects: subject: 530 Physik

description: We consider the instanton contributions for the production of a gluon jet with large transverse momentum in QCD. We find that Mueller's corrections corresponding to the rescattering of hard quanta are likely to remove the contributions of large instantons, making this cross section well defined. This observation generalizes the previous discussion of instanton effects in deep inelastic scattering and suggests that all hard processes in QCD receive hard non-perturbative corrections from instantons of small size, of order p not, vert, similar 1/(Qαs).
Present status and future prospects for a Higgs boson discovery at the Tevatron and LHC
Creators: name: Haber, Howard E.
Publisher: name: arXiv
Year: 2010
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: Discovering the Higgs boson is one of the primary goals of both the Tevatron and the Large Hadron Collider (LHC). The present status of the Higgs search is reviewed and future prospects for discovery at the Tevatron and LHC are considered. This talk focuses primarily on the Higgs boson of the Standard Model and its minimal supersymmetric extension. Theoretical expectations for the Higgs boson and its phenomenological consequences are reviewed.
description: 13 pages, 9 figures, 2 tables, jpconf documentclass file, invited talk at PASCOS 2010, the 16th International Symposium on Particles, Strings and Cosmology, Valencia, Spain, 19--23 July 2010
A differential push-pull voltage mode driver for vertical-cavity surface emitting laser
Creators: name: Sivadhasan Ramani, Ajith
Publisher: name: University of British Columbia
Year: 2020

description: The unabated demand for data communication has led to a rapid growth in warehouse-sized datacenters where high-end servers transfer terabytes of data per second between the racks using optical data links. Vertical cavity surface-emitting laser (VCSEL) based optical links are widely popular in such datacenters for short-reach (< 300 m) interconnects due to their compact footprint, low cost, ease of integration with multimode fiber and flexibility in implementing arrays to achieve high aggregate data rate. Improving power-conversion efficiency (PCE), defined as the ratio of desired output optical power to the total electrical power of VCSEL driver, is paramount to improve the overall energy efficiency of the entire optical link. VCSEL diodes are normally driven single-ended with pseudo-differential current-mode drivers to maintain signal integrity. However, such conventional drivers consume significant power and are often unable to compensate for supply switching noise due to package parasitics at high data-rates. We propose a differential push-pull voltage-mode VCSEL driver to mitigate bondwire parasitics, reduce power consumption and leverage complementary meral-oxide semiconductor (CMOS) process scaling to its maximum advantage. A proof-of-concept prototype in a 65nm CMOS process achieves the highest reported PCE to-date of 18.7% for VCSEL drivers when normalized to VCSEL slope efficiency. It uses an asymmetric 3-tap rise and fall based pre-emphasis to achieve a total energy efficiency of 1.52 pJ/b at 16 Gb/s with an average optical power output of 1.34 dBm, optical modulation amplitude (OMA) of 2.1 dBm and extinction ratio of 5.92 dB.
Instanton-induced production of jets with large transverse momentum in QCD
Creators: name: Balitsky, I. I.
name: Braun, Vladimir M.
Publisher: name: Universität Regensburg
Year: 1995
Subjects: subject: 530 Physik

description: We consider the instanton-induced cross section for production of a gluon jet with large transverse momentum in QCD and point out that Mueller's corrections corresponding to the rescattering of hard quanta are likely to remove contributions of large instantons, making this cross section well defined. Some speculations about possible phenomenological signatures are presented.
description: Zugleich: QCD Workshop 94, Montpellier, Frankreich, 7.-13. Juli 1994
title: Psychopathic personality traits and antisocial behaviours in adults: Behavioural, emotional, and physiological correlates
Creators: name: Welter Wendt, Guilherme
Publisher: name: Goldsmiths, University of London
Year: 2021

description: This thesis presents a series of studies that contribute to the literature about psychopathic traits in the general population, addressing physiological, emotional and behavioural correlates. At the level of behaviour, studies within Chapter Three showed positive correlations between bullying and psychopathy, and found better explanatory power for Primary Psychopathy in predicting bullying (Study 1). Additionally, bully–victims were found to present higher psychopathic traits (Study 2). At the physiological level, Chapter Four presents two studies examining cardiovascular functioning at rest and cardiovascular reactivity to stress. Rebellious Nonconformity, Total Psychopathy, and Social Influence showed significant, negative associations with resting heart rate (Study 3). Subsequently, Study 4 reports an association between psychopathic behaviours with threatening physiological responses, showing that participants high on their total levels of psychopathic personality traits and on Machiavellian Egocentricity were marked by a maladaptive pattern of hypothalamic–pituitary–adrenal reactivity to stress. Finally, this thesis aimed to extend the psychophysiological findings to the level of behaviour while also accounting for emotional deficiencies (cf. Chapter Five). Study 5 revealed that secondary variants of psychopathy were significant in predicting perceived stress. Additionally, the associations between psychopathic variants and perceived stress were mediated by specific deficiencies in empathy (e.g., difficulties in identifying and describing feelings). In summary, data presented in this thesis indicated differential associations of psychopathic traits in cardiovascular functioning at rest, and central nervous system reactivity to laboratory–induced stress. Further, that elevated self–report psychopathy was accompanied by higher behavioural and emotional difficulties.
Asymptotic solutions of the evolution equation for the polarized nucleon structure function g2(x, Q2)
Creators: name: Ali, Ahmed
name: Braun, Vladimir M.
name: Hiller, G.
Publisher: name: Universität Regensburg
Year: 1991
Subjects: subject: 530 Physik

description: We show that quark operators of twist 3 contributing to the polarized nucleon structure function g2tw.3(x, Q2) decouple from the evolution equation for the quark-gluon operators of the same twist in two important limits,Nc→∞ and n→∞ (Nc is the number of colours and n refers to the nth moment of g2). The anomalous dimensions for the quark operators turn out to be always the lowest ones in the spectrum. Asymptotic behaviour of g2(x, Q2) in the region 1−xmuch less-than1 is derived. Results of an extensive numerical study of the spectrum of anomalous dimensions for QCD and for the Nc→∞ cases are presented.
Instanton-induced contributions to structure functions of deep inelastic scattering
Creators: name: Balitsky, Ianko I.
name: Braun, Vladimir M.
Publisher: name: Universität Regensburg
Year: 1993
Subjects: subject: 530 Physik

description: We identify and calculate the instanton-induced contributions to deep inelastic scattering which correspond to nonperturbative exponential corrections to the coefficient functions in front of parton distributions of the leading twist.
Feasibility study on an analysis of CR helium flux with the CALET detector based on an extended acceptance
Creators: name: Mattiazzi, Marco
name: Adriani, Oscar
name: Akaike, Yosui
name: Asano, Katsuaki
name: Aaoka, Yoichi
name: Berti, Eugenio
name: Bigongiari, Gabriele
name: Binns, Walter Robert
name: Bongi, Massimo
name: Brogi, Paolo
name: Bruno, Alessandro
name: Cannady, Nicholas
name: Castellini, Guide
name: Checchia, Caterina
name: Cherry, Walter Robert
name: Collazuol, Gianmaria
name: De Nolfo, Georgia A.
name: Ebisawa, Ken
name: Ficklin, Anthony W.
name: Fuke, Hideyuki
name: Gonzi, Sandro
name: Guzik, T. Gregory
name: Hams, Thomas
name: Hibino, Kinya
name: Ichimura, Masakatsu
name: Ioka, Kunihito
name: Ishizaki, Wataru
name: Israel, Martin H.
name: Kasahara, Katsumasa
name: Kataoka, Jun
name: Kataoka, Ryuho
name: Katayose, Yusaku
name: Kato, Chihiro
name: Kawanaka, Norita
name: Kawakubo, Yuta
name: Kobayashi, Kenko
name: Kohri, Kazunori
name: Krawczynski, Henric S.
name: Krizmanic, John F.
name: Maestro, Paolo
name: Marrocchesi, Pier Simone
name: Messineo, Alberto Maria
name: Mitchell, Jason W.
name: Miyake, Shoko
name: Moiseev, Alexander
name: Mori, Masaki
name: Mori, Nicola
name: Motz, Holger Martin
name: Munakata, Kazuoki
name: Nakahira, Satoshi
name: Nishimura, Jun
name: Okuno, Shoji
name: Ormes, Jonathan
name: Ozawa, Shunsuke
name: Pacini, Lorenzo
name: Pacini, Paolo
name: Rauch, Brian Flint
name: Ricciarini, Ricciarini
name: Sakai, Kazuhiro
name: Sakamoto, Takanori
name: Sasaki, Makoto
name: Shimizu, Yuki
name: Shiomi, Atsushi
name: Spillantini, Piero
name: Stolzi, Francesco
name: Sugita, Satoshi
name: Sulaj, Arta
name: Takita, Masato
name: Tamura, Tadahisa
name: Terasawa, Toshio
name: Torii, Shoji
name: Tsunesada, Yoshiki
name: Uchihori, Yukio
name: Vannuccini, Elena
name: Wefel, John P.
name: Yamaoka, Kazutaka
name: Yanagita, Shohei
name: Yoshida, Atsumasa
name: Yoshida, Kenji
name: Zober, Wolfgang V.
Publisher: name: Proceedings of Science
Year: 2023

description: 38th International Cosmic Ray Conference (ICRC2023), 26 July - 3 August, 2023, Nagoya, Japan
description: In this work, we present a feasibility study aiming at a measurement of the cosmic ray (CR) helium flux utilizing CALET data with a significantly enhanced statistical precision. It is based on a wider geometrical acceptance compared to the current CALET analysis while ensuring a correct identification of charged particles crossing the detector. The expected statistical enhancement for the all-acceptance configuration is nearly a factor of two compared to the previous analysis, over the entire energy range from tens of GeV to hundreds of TeV. Preliminary assessment of efficiencies and background sources has been carried out based on energy-dependent charge selections.
Instanton contributions to the τ decay widths
Creators: name: Balitsky, I. I.
name: Beneke, M.
name: Braun, Vladimir M.
Publisher: name: Universität Regensburg
Year: 1993
Subjects: subject: 530 Physik

description: Contrary to some previous claims, we find a sizable instanton contribution to the finite energy sum rule used to extract the value of the strong coupling from the measured τ decay widths. It is of the same order of magnitude as standard nonperturbative corrections induced by vacuum quark and gluon condensates. Our result indicates that there might be no hierarchy of power corrections in finite energy sum rules at the scale of τ mass. Therefore, the standard nonperturbative corrections do not necessarily improve the accuracy of the theoretical prediction, but can rather be used to estimate an intrinsic accuracy of the pure perturbative calculation, which turns out to be rather high on this evidence, of order one percent.