cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Good and bad tetrads in f(T) gravity
Creators: name: Tamanini, Nicola
name: Boehmer, Christian G.
Publisher: name: arXiv
Year: 2012
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We investigate the importance of choosing good tetrads for the study of the field equations of $f(T)$ gravity. It is well known that this theory is not invariant under local Lorentz transformations, and therefore the choice of tetrad plays a crucial role in such models. Different tetrads will lead to different field equations which in turn have different solutions. We suggest to speak of a good tetrad if it imposes no restrictions on the form of $f(T)$. Employing local rotations, we construct good tetrads in the context of homogeneity and isotropy, and spherical symmetry, where we show how to find Schwarzschild-de Sitter solutions in vacuum. Our principal approach should be applicable to other symmetries as well.
description: 25 pages
Some remarks on Bianchi type-II, VIII and IX models
Creators: name: Saha, Bijan
Publisher: name: arXiv
Year: 2011
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: Within the scope of anisotropic non-diagonal Bianchi type-II, VIII and IX spacetime it is shown that the off-diagonal components of the corresponding metric impose severe restrictions on the components of the energy momentum tensor in general. If the energy momentum tensor is considered to be diagonal one, the spacetime, expect a partial case of BII, becomes locally rotationally symmetric.
description: 8 pages
Inconsistency in Fermi's probability of the quantum states
Creators: name: Zaghloul, Mofreh R.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Plasma Physics (physics.plasm-ph)
subject: FOS: Physical sciences

description: We point out an important hidden inconsistency in Fermi's probability of the quantum states that engendered inconsistent/inaccurate equations-of-state extensively used in the literature to model nonideal plasma systems. The importance of this amendment goes beyond rectifying our comprehension and foundation of an important physical problem to influencing contemporary research results.
description: Accepted for Publication
The Contrastive analysis hypothesis in syntax and morphology: the case of Norwegian speakers learning English
Creators: name: Shawa, Sissel Elisabeth
Publisher: name: University of Calgary
Year: 1976
Subjects: subject: PE 1099 S52 1976 Microfiche
subject: English language - Grammar, Comparative - Norwegian
subject: Norwegian language - Grammar, Comparative - English
subject: Contrastive linguistics
subject: Language and languages - Study and teaching - Error analysis

description: Bibliography: p. 97-98.
Synthetic partial waves in ultracold atomic collisions
Creators: name: Williams, R. A.
name: LeBlanc, L. J.
name: Jimenez-Garcia, K.
name: Beeler, M. C.
name: Perry, A. R.
name: Phillips, W. D.
name: Spielman, I. B.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Quantum Gases (cond-mat.quant-gas)
subject: Atomic Physics (physics.atom-ph)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Interactions between particles can be strongly altered by their environment. We demonstrate a technique for modifying interactions between ultracold atoms by dressing the bare atomic states with light, creating an effective interaction of vastly increased range that scatters states of finite relative angular momentum at collision energies where only s-wave scattering would normally be expected. We collided two optically dressed neutral atomic Bose-Einstein condensates with equal, and opposite, momenta and observed that the usual s-wave distribution of scattered atoms was altered by the appearance of d- and g-wave contributions. This technique is expected to enable quantum simulation of exotic systems, including those predicted to support Majorana fermions.
A computational investigation of H2 adsorption and dissociation on Au nanoparticles supported on TiO2 surface
Creators: name: Lyalin, Andrey
name: Taketsugu, Tetsuya
Publisher: name: arXiv
Year: 2011
Subjects: subject: Atomic and Molecular Clusters (physics.atm-clus)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Materials Science (cond-mat.mtrl-sci)
subject: Chemical Physics (physics.chem-ph)
subject: FOS: Physical sciences

description: The specific role played by small gold nanoparticles supported on the rutile TiO2(110) surface in the processes of adsorption and dissociation of H2 is discussed. It is demonstrated that the molecular and dissociative adsorption of H2 on Au_n clusters containing n = 1, 2, 8 and 20 atoms depends on cluster size, geometry structure, cluster flexibility and the interaction with the support material. Rutile TiO2(110) support energetically promotes H2 dissociation on gold clusters. It is demonstrated that the active sites towards H2 dissociation are located at corners and edges on the surface of the gold nanoparticle in the vicinity of the support. The low coordinated oxygen atoms on the TiO2(110) surface play a crucial role for H2 dissociation. Therefore the catalytic activity of a gold nanoparticle supported on the rutile TiO2(110) surface is proportional to the length of the perimeter interface between the nanoparticle and the support.
description: 26 pages, 8 figures, in press Faraday Discussions (2011)
Critical points of multicomponent mixtures
Creators: name: Khalil, Ahmed M.
Publisher: name: University of Calgary
Year: 1979
Subjects: subject: QD 503 K32 1979 Microfiche
subject: Critical point - Mathematical models
subject: Critical point
subject: Phase rule and equilibrium
subject: Mixtures

description: Bibliography: p. 89-93.
description: The criteria for critical points in multicomponent systems may be expressed in two simultaneous non-linear equations in the intensive variables of the critical phase. One of the two equations establishes the stability limit of the mixture. Computations have been performed in this work to predict the critical points in binary and multicomponent mixtures described by the Soave-Redlich-Kwong equation of state. A new procedure for evaluating the functions which appear in the non-linear equations is presented. The new procedure simplifies and permits the speeding up of the computation of critical points in multicomponent mixtures. For vapor- liquid critical points, an algorithm is proposed in which it is not necessary to provide initial guesses for either the temperature or the volume. The computational scheme presented has been used to predict the critical points of large systems. The technique was also used in the computation of the limit of stability by which liquid-liquid separations can be predicted. It is also capable of locating all the critical points existing in any multicomponent mixture.
Generating innovations through analogies : an empirical investigation of knowledge brokers
Creators: name: Kalogerakis, Katharina
name: Herstatt, Cornelius
name: Lüthje, Christian
Publisher: name: TUHH Universitätsbibliothek
Year: 2005
Subjects: subject: product development
subject: knowledge brokers
subject: analogy
classificationCode: 85.15
subject: Forschung und Entwicklung
subject: Produktentwicklung
subject: Analogie
subject: Wissensmanagement

description: In this paper we explore how knowledge brokers – specialised design and engineering companies offering services to clients in diverse industries – use analogies for product development. Our research is based on interviews with project leaders of 13 knowledge brokering companies. The interviews focused on product development projects in which analogies were used. First, we categorize these cases according to the motivation to use analogies (efficiency vs. innovativeness). Second, we describe and analyse the process of using analogies. Our results show that analogies are frequently and very pragmatically applied
 throughout the whole development process. We also found that individual characteristics of the persons participating in such projects are the crucial factor that influences the outcome of the project.
On-line multivariable computer control of an azeotropic distillation column
Creators: name: Thusoo, Autar Krishnan
Publisher: name: University of Calgary
Year: 1973
Subjects: subject: TP 156 D5 T46 1973 Microfiche
subject: Distillation
subject: Chemical process control
subject: Chemical engineering - Electronic data processing
subject: Automatic control

description: Bibliography: p. 176-180.
Phase equilibria using the NRTL equation
Creators: name: Mandhane, Jamanlal Madanlal
Publisher: name: Engineering
Year: 1972
Subjects: subject: TP 156 E65 M34 1972 Microfilm
subject: Phase rule and equilibrium
subject: Chemical equilibrium
subject: Vapor-liquid equilibrium
subject: Non Random, Two Liquid Equation
subject: Butyl acetate

description: Bibliography: p. 79-81.
Development of hollow out-of-plane polymer microneedles using solvent casting
Creators: name: Mansoor, Iman
Publisher: name: University of British Columbia
Year: 2010

description: In recent years, extensive research has been done to find innovative ways of drug delivery to replace traditional injection using hypodermic needles. Although microneedles are proposed to provide one of the most effective and convenient transdermal drug delivery methods, their expensive fabrication techniques have created a barrier for their mass fabrication and as a result, their entry to the commercial market. A novel method, based on solvent casting, is presented for inexpensive fabrication of hollow out-of-plane polymer microneedles. Microneedles are formed during a solvent evaporation process which leaves a thick polymer layer around pillars in a pre-fabricated mold. This process is fast and allows fabrication of microneedles in variety of shapes and dimensions. The effectiveness of the microneedle arrays fabricated using this process has been demonstrated through in vivo and in vitro experiments. In order to further optimize the microneedle design, a novel experimental method based on confocal microscopy and particle image velocimetry (PIV) is presented for characterizing the flow in a thin film during solvent casting. Using this method, the impact of temperature on polymer film formation, on a vertical profile in a mold, is investigated and discussed. This method also allowed observing some important phenomena during solvent casting such as a surface counter flow. The PIV measurements show significant differences in the flow velocity fields at different temperatures that correlate with different final polymer thicknesses on the vertical wall of the mold.
Heavy Ion physics with the ALICE experiment at the CERN LHC
Creators: name: Schukraft, J.
Publisher: name: arXiv
Year: 2011
Subjects: subject: High Energy Physics - Experiment (hep-ex)
subject: Nuclear Experiment (nucl-ex)
subject: FOS: Physical sciences

description: After close to 20 years of preparation, the dedicated heavy ion experiment ALICE took first data at the CERN LHC accelerator with proton collisions at the end of 2009 and with lead nuclei at the end of 2010. After a short introduction into the physics of ultra-relativistic heavy ion collisions, this article recalls the main design choices made for the detector and summarizes the initial operation and performance of ALICE. Physics results from this first year of operation concentrate on characterizing the global properties of typical, average collisions, both in pp and nucleus-nucleus reactions, in the new energy regime of LHC. The pp results differ, to a varying degree, from most QCD inspired phenomenological models and provide the input needed to fine-tune their parameters. First results from Pb-Pb are broadly consistent with expectations based on lower energy data, indicating that high density matter created at LHC, while much hotter and larger, still behaves like a very strongly interacting, almost perfect liquid.
description: Talk given at Royal Society meeting on "Physics at the high energy frontier - the Large Hadron Collider project", London, 16 - 17 May 2011, to be published in "Philosophical Transactions of the Royal Society A"
Observation of Preformed Electron-Hole Cooper Pairs
Creators: name: Versteegh, Marijn A. M.
name: van Lange, A. J.
name: Stoof, H. T. C.
name: Dijkhuis, Jaap I.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Electrons and holes in a semiconductor form hydrogen-atom-like bound states, called excitons. At high electron-hole densities the attractive Coulomb force becomes screened and excitons can no longer exist. Bardeen-Cooper-Schrieffer theory predicts that at such high densities co-operative many-body effects can at low temperatures induce a bound state, an electron-hole Cooper pair, comparable to an electron-electron Cooper pair in a superconductor. Here we report the first observation of preformed electron-hole Cooper pairs in a semiconductor. By measuring stimulated emission from a dense electron-hole gas in ZnO, we have explored both the crossover from the electron-hole plasma to the preformed Cooper-pair regime, and the crossover from the exciton to the preformed Cooper-pair regime.
description: Main article: 11 pages, 3 figures. Supplement: 10 pages, 4 figures
Tauch- Und Stampfbewegung 2: Bewegungen, Kräfte und Druckverteilungen
Creators: name: Grim, Otto
Publisher: name: TUHH Universitätsbibliothek
Year: 1978
Subjects: classificationCode: 52.00
subject: Maschinenbau, Energietechnik, Fertigungstechnik: Allgemeines

description: Tauch- Und Stampfbewegung 2: Bewegungen, Kräfte und Druckverteilungen
Collaboration of Digital Twins through Linked Open Data: Architecture with FIWARE as Enabling Technology
Creators: name: Conde, Javier
name: Munoz-Arcentales, Andres
name: Alonso, Álvaro
name: Huecas, Gabriel
name: Salvachúa, Joaquín
Publisher: name: arXiv
Year: 2024
Subjects: subject: Networking and Internet Architecture (cs.NI)
subject: Software Engineering (cs.SE)
subject: FOS: Computer and information sciences

description: The collaboration of the real world and the virtual world, known as Digital Twin, has become a trend with numerous successful use cases. However, there are challenges mentioned in the literature that must be addressed. One of the most important issues is the difficulty of collaboration of Digital Twins due to the lack of standardization in their implementation. This article continues a previous work that proposed a generic architecture based on the FIWARE components to build Digital Twins in any field. Our work proposes the use of Linked Open Data as a mechanism to facilitate the communication of Digital Twins. We validate our proposal with a use case of an urban Digital Twin that collaborates with a parking Digital Twin. We conclude that Linked Open Data in combination with the FIWARE ecosystem is a real reference option to deploy Digital Twins and to enable the collaboration between Digital Twins.
Survey of survival curriculum criteria in the Alberta social studies curricula since 1930
Creators: name: Smith, Earl Darryl
Publisher: name: University of Calgary
Year: 1972
Subjects: subject: H 62.5 A42 S53 1972 Microfilm
subject: Social sciences - Study and teaching (Secondary) - Alberta
subject: Senior high schools - Alberta - Curricula
subject: Social science research - Alberta

description: Bibliography: p. 60-66.
Tragverhalten von Stahlbetontragwerken ohne Querkraftbewehrung unter Ermüdungsbeanspruchungen
Creators: name: Kohl, Matthias
Publisher: name: TUHH Universitätsbibliothek
Year: 2015
Subjects: classificationCode: 720
subject: Architektur

description: Das Tragverhalten von Stahlbetontragwerken ohne Querkraftbewehrung unter Ermüdungsbeanspruchungen wird in der vorliegenden Arbeit untersucht. Ursächlich dafür sind die Einführung neuer Bemessungskonzepte sowie ansteigende Lasten und Lasthäufigkeiten. Diese Umstände betreffen zum Beispiel Massivbrücken. Da sich anhand statistischer Auswertungen vorliegender Versuche Defizite im aktuell gültigen Bemessungskonzept (Eurocode 2) gezeigt haben, sind im Rahmen der Arbeit theoretische, experimentelle und numerische Untersuchungen durchgeführt worden. Sie dienen dazu, den Querkraftabtrag besser zu verstehen. Anhand der Ergebnisse kann die Ermüdungsbemessung von Beton unter Querkraftbeanspruchungen nach Eurocode 2, Gl. 6.78 bzw. deren Darstellung in Form eines Goodman Diagramms verifiziert werden, sofern die Querkrafttragfähigkeit bekannt ist. Darüber hinaus können die folgenden Feststellungen getroffen werden: 1. Die Druckzone besitzt den maßgebenden Anteil am Querkraftabtrag von Bauteilen ohne Schubbewehrung; dieser liegt bei mindestens 60 %. 2. Die Versagensmodi, die bereits 1990 von MUTTONI erkannt worden sind, können beobachtet werden, sind aber durch einen weiteren Versagensmechanisms im Auflagerbereich zu ergänzen. 3. Das Ermüdungs-Schädigungsmodell von PFANNER kann genutzt werden, um zyklische Querkräfte mit Hilfe der Finiten Elemente Methode numerisch zu simulieren.
description: The present paper examines the load bearing characteristics of RC structures without web reinforcement under cyclic loads. New design approaches as well as increasing loads and load frequencies are responsible for it. These circumstances are related to concrete bridges, for example. Statistical evaluations of existing tests have shown deficits in the current design approach (Eurocode 2). Therefore, theoretical, experimental and numerical studies will be conducted within this paper. They are intended to give a better understanding of the load transfer in RC members without web reinforcement. As a result of the studies, the design of concrete to resist fatigue due to shear according to Eurocode 2, Eq. 6.78 as well as the representation by means of a Goodman diagram can be confirmed, if the shear bearing capacity is known. Furthermore, the following conclusions can be drawn: 1. The compression zone is the dominating mechanism of RC elements without shear reinforcement to carry the shear load; its contribution is at least 60 %. 2. The failure mechanism, which have been observed by MUTTONI in 1990, can also be seen in the Hamburg test series. However, there exists another failure mechanism in the area of the support. 3. The fatigue-damage model developed by PFANNER is a helpful tool to simulate the behavior under cyclic shear loads by using the Finite Element Method.
Rotating Rindler-AdS Space
Creators: name: Parikh, Maulik
name: Samantray, Prasant
name: Verlinde, Erik
Publisher: name: arXiv
Year: 2011
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: If the Hamiltonian of a quantum field theory is taken to be a timelike isometry, the vacuum state remains empty for all time. We search for such stationary vacua in anti-de Sitter space. By considering conjugacy classes of the Lorentz group, we find interesting one-parameter families of stationary vacua in three-dimensional anti-de Sitter space. In particular, there exists a family of rotating Rindler vacua, labeled by the rotation parameter beta, which are related to the usual Rindler vacuum by non-trivial Bogolubov transformations. Rotating Rindler-AdS space possesses not only an observer-dependent event horizon but even an observer-dependent ergosphere. We also find rotating vacua in global AdS provided a certain region of spacetime is excluded.
description: 14 pages, LaTeX
Heat content asymptotics with singular data
Creators: name: Berg, M. van den
name: Gilkey, P.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Analysis of PDEs (math.AP)
subject: FOS: Mathematics
subject: 58J32

description: We study the asymptotic behaviour of the heat content on a compact Riemannian manifold with boundary and with singular specific heat and singular initial temperature distributions. Assuming the existence of a complete asymptotic series we determine the first three terms in that series. In addition to the general setting, the interval is studied in detail.
Evaluation of the antimicrobial activity of a dialysed cranberry extract against selected isolates of Staphylococcus aureus
Creators: name: Leusink, Gwendolyn Jill
Publisher: name: University of British Columbia
Year: 2010

description: This research examined the antimicrobial activities of a dialysed commercial cranberry extract (CE90), by determining the minimum inhibitory concentration against Staphylococcus aureus and the effect of CE90 on morphology, adhesion to fibronectin, biofilm formation and removal and salt tolerance of Staph. aureus. The minimum inhibitory concentration was 16 mg CE90 ml⁻¹ for 10 of the 24 Staph. aureus isolates and 32 mg CE90 ml⁻¹ for the remaining 14 isolates. Phase contrast microscopy of treated Staph. aureus revealed a dose-dependent bacterial clumping effect, with higher CE90 concentrations resulting in larger clumps. There were no significant differences between CE90 concentrations (0, 2, 4, 8 and 16 mg CE90 ml⁻¹) in Staph. aureus binding to fibronectin, for a parental strain and two mutant strains deficient in either fibronectin-binding proteins A and B or clumping factor A, with the exception of reduced adhesion for the fnbA-/fnbB- mutant at 4 mg CE90 ml⁻¹. Biofilm formation by four isolates of Staph. aureus (PC1, SA 113, 8325-4, 2076) incubated with CE90 generally decreased as CE90 concentration increased (0 – 16 mg CE90 ml⁻¹). The amount of pre-formed biofilm removed by CE90 for Staph. aureus PC1 was not significantly different from the control. Staph. aureus SA 113 and 2076 showed a greater (P < 0.05) level of residual biofilm after exposure to CE90 (SA 113, 2 – 16 mg CE90 ml⁻¹; 2076, 4 – 16 mg CE90 ml⁻¹) than the negative control. There was more (P < 0.05) residual biofilm in the 2 mg CE90 ml⁻¹ treatment versus the 16 mg CE90 ml⁻¹ treatment for Staph. aureus 8325-4. Biofilm index at 8 and 24 h showed a significant interaction between isolates and CE90 concentrations (P < 0.05), and biofilm index of Staph. aureus PC1 and SA 113 showed a significant interaction between time intervals and CE90 concentrations (P < 0.05). There was a reduction in colony forming units with increasing CE90 concentration on both tryptic soy agar and TSA plus 7.5% NaCl (TSAS), with a greater reduction on TSAS, though this difference between media was significant in only four of the 16 isolate-treatment combinations.
Reduction of thermal fluctuations in a cryogenic laser interferometric gravitational wave detector
Creators: name: Uchiyama, Takashi
name: Miyoki, Shinji
name: Telada, Souichi
name: Yamamoto, Kazuhiro
name: Ohashi, Masatake
name: Agatsuma, Kazuhiro
name: Arai, Koji
name: Fujimoto, Masa-Katsu
name: Haruyama, Tomiyoshi
name: Kawamura, Seiji
name: Miyakawa, Osamu
name: Ohishi, Naoko
name: Saito, Takanori
name: Shintomi, Takakazu
name: Suzuki, Toshikazu
name: Takahashi, Ryutaro
name: Tatsumi, Daisuke
Publisher: name: arXiv
Year: 2012
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: Instrumentation and Detectors (physics.ins-det)
subject: FOS: Physical sciences

description: The thermal fluctuation of mirror surfaces is the fundamental limitation for interferometric gravitational wave (GW) detectors. Here, we experimentally demonstrate for the first time a reduction in a mirror's thermal fluctuation in a GW detector with sapphire mirrors from the Cryogenic Laser Interferometer Observatory at 17\,K and 18\,K. The detector sensitivity, which was limited by the mirror's thermal fluctuation at room temperature, was improved in the frequency range of 90\,Hz to 240\,Hz by cooling the mirrors. The improved sensitivity reached a maximum of $2.2 \times 10^{-19}\,\textrm{m}/\sqrt{\textrm{Hz}}$ at 165\,Hz.
description: Accepted for publication in Physical Review Letters, 5 pages, 2 figures
title: WDM network planning and management
title: Planung und Management des WDM-Netzwerks
titleType: AlternativeTitle
Creators: name: Tran, Phuong Nga
Publisher: name: TUHH Universitätsbibliothek
Year: 2010
Subjects: subject: Optimierung
subject: multi-ebenes Netzwerk
subject: IP/MPLS über WDM
subject: Wellenlängenkonverter
subject: optimization
subject: multilayer network
subject: IP/MPLS over WDM
subject: wavelength converting network
classificationCode: 004
subject: Informatik
classificationCode: 620
subject: Ingenieurwissenschaften
classificationCode: 53.75
subject: Optische Nachrichtentechnik
subject: WDM
subject: Hochgeschwindigkeitsnetz
subject: Netzplanung

description: Das schnelle Wachstum des Internets sowie die zunehmende Nutzung von bandbreiten-intensiven Anwendungen wie Video-on-Demand oder Multimediakonferenzen erfordern umfangreiche Forschungen im Bereich Hochgeschwindigkeitsnetze. Ein vielversprechender Ansatz sind optische Netzwerke mit WDM-Technologie. In der vorliegenden Arbeit werden verschiedene Probleme von WDM-Netzen untersucht. Sie umfasst 1.) Netzplanung und Optimierung von WDM-Netzen, 2.) Platzierung der Wellenlängenkonverter und Zuweisung von Wellenlängen in WDM-Netzen mit Wellenlängenkonvertern, 3.) Entwurf und 4.) Neukonfiguration der logischen Topologien für IP über WDM-Netze sowie 5.) Schutz für Multi-Layer-WDM-Netze.
description: The rapid growth of Internet as well as bandwidth-intensive networking applications such as video-on-demand or multimedia conferencing, raise new challenges in network planning and management, and hence requires extensive new research in high-bandwidth transport networks, of which optical networks employing WDM technology is a promising candidate. Therefore, in this thesis, we study several issues related WDM networks. It includes 1.) network planning and optimization for WDM networks, 2.) wavelength converter placement and wavelength assignment in wavelength converting networks, 3.) design and 4.) reconfiguration of logical topologies for IP over WDM networks, and 5.) survivability for multi-layer WDM networks.
Global Mild Solutions of the Navier-Stokes Equations
Creators: name: Lei, Zhen
name: Lin, Fang-hua
Publisher: name: arXiv
Year: 2012
Subjects: subject: Analysis of PDEs (math.AP)
subject: FOS: Mathematics

description: Here we establish a global well-posedness of \textit{mild} solutions to the three-dimensional incompressible Navier-Stokes equations if the initial data are in the space $\mathcal{X}^{-1}$ defined by $(1.3)$ and if the norms of the initial data in $\mathcal{X}^{-1}$ are bounded exactly by the viscosity coefficient $μ$.
title: Systemische, soziale und emotionale Herausforderungen und Glücksmomente im beruflichen Alltag von haupt- und nebenberuflichen YouTuber*innen
title: „Have fun and work at the same time“
Creators: name: Albiez, Milena
Publisher: name: Universität Kassel
Year: 2020
Subjects: subject: Social Media
subject: Coaching
subject: Organisation
subject: YouTube
subject: Digitalisierung
subject: YouTuber
subject: Content Creator
subject: Hobby
subject: Selbstständigkeit
subject: Google
subject: Burnout
subject: Stress
subject: Subjektivierung
subject: new work
subject: Gruppendynamik
subject: social media
subject: coaching
subject: organisation
subject: digitalization
subject: content creator
subject: hobby
subject: self-reliance
subject: burnout
subject: stress
subject: subjectification
subject: group dynamics
subject: 300
subject: Social Media
subject: Coaching
subject: Organisation
subject: YouTube
subject: Digitalisierung
subject: YouTuber
subject: Hobby
subject: Selbstständigkeit
subject: Google
subject: Burnout-Syndrom
subject: Stress
subject: Gruppendynamik

description: Gefördert im Rahmen des Projekts DEAL
Free Running Single Photon Detection based on a negative feedback InGaAs APD
Creators: name: Lunghi, Tommaso
name: Barreiro, Claudio
name: Guinnard, Olivier
name: Houlmann, Raphael
name: Jiang, Xudong
name: Itzler, Mark A.
name: Zbinden, Hugo
Publisher: name: arXiv
Year: 2012
Subjects: subject: Instrumentation and Detectors (physics.ins-det)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: InGaAs/InP-based semiconductor avalanche photodiode are usually employed for single-photon counting at telecom wavelength. However they are affected by afterpulsing which limits the diode performance. Recently, Princeton Lightwave has commercialised a diode integrating monolithically a feedback resistor. This solution effectively quenches the avalanche and drastically reduces afterpulsing. Here, we report the development and characterization of a detector module based on this diode, implementing an active hold-off circuit which further reduces the afterpulsing and notably improves the detector performances. We demonstrate free-running operation with 600 Hz dark count rate at 10% detection efficiency. We also improved the standard double-window technique for the afterpulsing characterization. Our algorithm implemented by a FPGA allows to put the APD in a well-defined initial condition and to measure the impact of the higher order afterpulses.
description: 18 pages, 15 figures. Submitted to Journal of Modern Optics
title: Kombinatorisches und Kreatives zum Verhältnis von Mathematik und Bibliothek
title: Combinatorics and creativity in the relation of mathematics and the library
titleType: AlternativeTitle
Creators: name: Hapke, Thomas
Publisher: name: TUHH Universitätsbibliothek
Year: 2009
Subjects: subject: Informationskompetenz
subject: Plagiat
subject: combinatorics
subject: creativity
subject: mathematics
subject: library
classificationCode: 02.13
subject: Wissenschaftspraxis
classificationCode: 77.31
subject: Kognition
classificationCode: 31.12
subject: Kombinatorik, Graphentheorie
classificationCode: 06.30
subject: Bibliothekswesen, Dokumentationswesen: Allgemeines
subject: Kombinatorik
subject: Kreativität
subject: Bibliothek
subject: Mathematik

description: Ausgehend von einer Aussage des Chemikers Wilhelm Ostwald zur Kombinatorik als Komponente von Kreativität wird in diesem Essay durch Zitate aus der "Bibliothek von Babel" von Jorge Luis Borges der Zusammenhang zwischen Bibliothek und Kombinatorik und damit Mathematik illustriert. Abschliessend wird das Verhältnis von Kombinatorik und Kreativität im Rahmen von modernen Ideen eines alternativen Umgangs mit dem Urheberrecht (Creative Commons) thematisiert: Die "Bibliothek von Babel", die alle Werke enthält, die aus der Kombination von allen möglichen Zeichen kombinatorisch konstruiert werden können, ist Teil einer Welt, in der kein Plagiat möglich ist bzw. alle Werke Plagiate sind.
description: Starting with a statement by the chemist Wilhelm Ostwald on combinatorics as a component of creativity, this essay illustrates the relation between the library and combinatorics, and with it mathematics, through citations of the novel "The library of Babel" by Jorge Luis Borges. In the end the correlation of combinatorics and creativity is seen in the context of modern notions and alternative views of intellectual property rights (Creative Commons): "The Library of Babel" which contains all works that can be constructed through combination of all possible signs, is part of a world where plagiarism is impossible, respectively all works are plagiarism.
MINKA Terms and conditions of use
Creators: name: EMBIMOS research group
Publisher: name: Zenodo
Year: 2024
Subjects: terms of use, citizen science, data policy, user agreement, scientific data management, community guidelines, participatory research, data sharing

description: These Terms and Conditions of Use establish the legal framework for contributing to and using MINKA Citizen Observatory (https://minka-sdg.org), a platform dedicated to SDG's monitoring using citizen science. The document outlines rights and responsibilities, content ownership, data sharing policies, and platform usage guidelines. Developed by the EMBIMOS research group at Institut de Ciències del Mar (ICM-CSIC), these terms provide a clear structure for participation in citizen science while protecting both individual contributors and the collective scientific value of community observations. The document is avalaible in English, Spanish and Catalan.
Quantum network coding for quantum repeaters
Creators: name: Satoh, Takahiko
name: Gall, Francois Le
name: Imai, Hiroshi
Publisher: name: arXiv
Year: 2012
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: This paper considers quantum network coding, which is a recent technique that enables quantum information to be sent on complex networks at higher rates than by using straightforward routing strategies. Kobayashi et al. have recently showed the potential of this technique by demonstrating how any classical network coding protocol gives rise to a quantum network coding protocol. They nevertheless primarily focused on an abstract model, in which quantum resource such as quantum registers can be freely introduced at each node. In this work, we present a protocol for quantum network coding under weaker (and more practical) assumptions: our new protocol works even for quantum networks where adjacent nodes initially share one EPR-pair but cannot add any quantum registers or send any quantum information. A typically example of networks satisfying this assumption is {\emph{quantum repeater networks}}, which are promising candidates for the implementation of large scale quantum networks. Our results thus show, for the first time, that quantum network coding techniques can increase the transmission rate in such quantum networks as well.
description: 9 pages, 11figures
A Comparative examination of three approaches to teaching structure in comnposition
Creators: name: Notacker, Gerda Maria
Publisher: name: University of Calgary
Year: 1978
Subjects: subject: PN 181 N67 1978 Microfiche
subject: Creative writing (Higher education)
subject: Teachers, Training of
subject: English language - Rhetoric - Study and teaching
subject: English language - Grammar - Study and teaching

description: Bibliography: p. 143-151.
Terms and conditions of use
Creators: name: EMBIMOS research group
Publisher: name: Zenodo
Year: 2024
Subjects: terms of use, citizen science, data policy, user agreement, scientific data management, community guidelines, participatory research, data sharing

description: These Terms and Conditions of Use establish the legal framework for contributing to and using MINKA Citizen Observatory (https://minka-sdg.org), a platform dedicated to SDG's monitoring using citizen science. The document outlines rights and responsibilities, content ownership, data sharing policies, and platform usage guidelines. Developed by the EMBIMOS research group at Institut de Ciències del Mar (ICM-CSIC), these terms provide a clear structure for participation in citizen science while protecting both individual contributors and the collective scientific value of community observations.
CASSIS: The Cornell Atlas of Spitzer/IRS Sources
Creators: name: Lebouteiller, V.
name: Barry, D. J.
name: Spoon, H. W. W.
name: Bernard-Salas, J.
name: Sloan, G. C.
name: Houck, J. R.
name: Weedman, D. W.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: Astrophysics of Galaxies (astro-ph.GA)
subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: We present the spectral atlas of sources observed in low resolution with the Infrared Spectrograph on board the Spitzer Space Telescope. More than 11,000 distinct sources were extracted using a dedicated algorithm based on the SMART software with an optimal extraction (AdOpt package). These correspond to all 13,000 low resolution observations of fixed objects (both single source and cluster observations). The pipeline includes image cleaning, individual exposure combination, and background subtraction. A particular attention is given to bad pixel and outlier rejection at the image and spectra levels. Most sources are spatially unresolved so that optimal extraction reaches the highest possible signal-to-noise ratio. For all sources, an alternative extraction is also provided that accounts for all of the source flux within the aperture. CASSIS provides publishable quality spectra through an online database together with several important diagnostics, such as the source spatial extent and a quantitative measure of detection level. Ancillary data such as available spectroscopic redshifts are also provided. The database interface will eventually provide various ways to interact with the spectra, such as on-the-fly measurements of spectral features or comparisons among spectra.
description: Accepted for publication in ApJ Supplement Series
Calderón-Zygmund operators associated to matrix-valued kernels
Creators: name: Hong, Guixiang
name: López-Sánchez, Luis Daniel
name: Martell, José María
name: Parcet, Javier
Publisher: name: arXiv
Year: 2012
Subjects: subject: Classical Analysis and ODEs (math.CA)
subject: Functional Analysis (math.FA)
subject: Operator Algebras (math.OA)
subject: FOS: Mathematics
subject: 42B20, 42B25, 46L51, 46L52, 46L53

description: Calderón-Zygmund operators with noncommuting kernels may fail to be Lp-bounded for $p \neq 2$, even for kernels with good size and smoothness properties. Matrix-valued paraproducts, Fourier multipliers on group vNa's or noncommutative martingale transforms are frameworks where we find such difficulties. We obtain weak type estimates for perfect dyadic CZO's and cancellative Haar shifts associated to noncommuting kernels in terms of a row/column decomposition of the function. Arbitrary CZO's satisfy $H_1 \to L_1$ type estimates. In conjunction with $L_\infty \to BMO$, we get certain row/column Lp estimates. Our approach also applies to noncommutative paraproducts or martingale transforms with noncommuting symbols/coefficients. Our results complement recent results of Junge, Mei, Parcet and Randrianantoanina.
Terms and conditions of use
Creators: name: EMBIMOS research group
Publisher: name: Zenodo
Year: 2024
Subjects: terms of use, citizen science, data policy, user agreement, scientific data management, community guidelines, participatory research, data sharing

description: These Terms and Conditions of Use establish the legal framework for contributing to and using MINKA Citizen Observatory (https://minka-sdg.org), a platform dedicated to SDG's monitoring using citizen science. The document outlines rights and responsibilities, content ownership, data sharing policies, and platform usage guidelines. Developed by the EMBIMOS research group at Institut de Ciències del Mar (ICM-CSIC), these terms provide a clear structure for participation in citizen science while protecting both individual contributors and the collective scientific value of community observations. The document is avalaible in English, Spanish and Catalan.
title: Deposition of advanced phosphor coatings by flame spray pyrolysis
title: Abscheidung der Leuchtstoffbeschichtungen mit verbesserten Eigenschaften mittels Flammensprühpyrolyse
titleType: AlternativeTitle
Creators: name: Kubrin, Roman
Publisher: name: TUHH Universitätsbibliothek
Year: 2011
Subjects: subject: Flammensprühpyrolyse
subject: Flammenaerosolabscheidung
subject: Leuchtstoffbeschichtungen
subject: Nanoleuchtstoffe
subject: Seltenerdoxide
subject: Flame spray pyrolysis
subject: Flame aerosol deposition
subject: phosphor coatings
subject: nanophosphors
subject: rare-earth oxides
classificationCode: 33.18
subject: Optik
classificationCode: 35.45
subject: Übergangselemente und ihre Verbindungen
classificationCode: 53.09
subject: Werkstoffe der Elektrotechnik
classificationCode: 58.10
subject: Verfahrenstechnik: Allgemeines
classificationCode: 58.17
subject: Chemische Prozesstechnik

description: Flammenaerosolabscheidung kombiniert in einem Prozessschritt die Synthese von Leuchtstoffpartikeln mittels Flammensprühpyrolyse und deren Abscheidung auf ein Substrat. Schichten von Submikrometer-großen Y2O3:Eu Partikeln, die wir in wenigen Minuten abgeschieden haben, erreichten eine vergleichbare Helligkeit mit Bildschirmen, die mit einem kommerziellen Leuchtstoff hergestellt wurden. Y2O3:Eu Nanoleuchtstoffbe-schichtungen hatten eine niedrigere Helligkeit, bieten aber die Möglichkeit, die höchstmögliche (beugungsbegrenzte) optische Auflösung zu erzielen.
description: Flame aerosol deposition (FAD) combines synthesis of phosphor particles by flame spray pyrolysis and their deposition onto a substrate in a single process step. Y2O3:Eu phosphor coatings consisting of sub-micrometer particles could be deposited by FAD based on droplet-to-particle conversion within minutes and had brightness equal to that of a conventional micrometer-sized phosphor. Screens of Y2O3:Eu nanophosphor produced by chemical vapor condensation FAD had lower brightness but they potentially could facilitate the highest possible (diffraction-limited) optical screen resolution.
Hadron production in lepton-nuclei interactions at high energies: Monte Carlo generator HARDPING 2.0
Creators: name: Berdnikov, Yaroslav
name: Ivanov, Alexey
name: Kim, Victor
name: Murzin, Victor
Publisher: name: arXiv
Year: 2012
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: Hadron production in lepton-nucleus interactions at high-energies is considered in framework of developing Monte Carlo event generator HARDPING (HARD Probe INteraction Generator). Such effects as formation length, energy loss and multiple rescattering for produced hadrons and their constituents are implemented into the HARDPING 2.0. Available data from HERMES collaboration on hadron production in lepton-nucleus collisions are described by the present version of the HARDPING generator in a reasonable agreement.
description: 7 pages, 3 figures
High-Field Superconductivity at an Electronic Topological Transition in URhGe
Creators: name: Yelland, Ed
name: Barraclough, Jack
name: Wang, Weiwei
name: Kamenev, Konstantin
name: Huxley, Andrew
Publisher: name: arXiv
Year: 2011
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: The emergence of superconductivity at high magnetic fields in URhGe is regarded as a paradigm for new state formation approaching a quantum critical point. Until now, a divergence of the quasiparticle mass at the metamagnetic transition was considered essential for superconductivity to survive at magnetic fields above 30 tesla. Here we report the observation of quantum oscillations in URhGe revealing a tiny pocket of heavy quasiparticles that shrinks continuously with increasing magnetic field, and finally disappears at a topological Fermi surface transition close to or at the metamagnetic field. The quasiparticle mass decreases and remains finite, implying that the Fermi velocity vanishes due to the collapse of the Fermi wavevector. This offers a novel explanation for the re-emergence of superconductivity at extreme magnetic fields and makes URhGe the first proven example of a material where magnetic field-tuning of the Fermi surface, rather than quantum criticality alone, governs quantum phase formation.
description: A revised version has been accepted for publication in Nature Physics
Folie à deux : a musical composition for flute, clarinet, violin, cello, piano and vibraphone with electroacoustic music and live audio processing
Creators: name: Hannesson, Mark Joel
Publisher: name: University of British Columbia
Year: 2009

description: Folie à deux is a musical composition for flute, clarinet, violin, cello, piano and vibraphone with electroacoustic music and live audio processing. It explores the idea of musical influence through the metaphor of shared delusion. This dissertation is made up of four main sections. The first will look at the background to the piece, the historical and personal influences that led to its composition. The second section will discuss those aspects of the piece that are somewhat unique as well as an examination of how it does not correspond to standard practices. Next, a detailed examination of the steps taken to bring the piece to fruition will be explored. Finally, some concluding remarks will be made about the piece and the future creative directions that may be followed in its wake.
Exactly solvable pairing Hamiltonian for heavy nuclei
Creators: name: Dukelsky, J.
name: H., S. Lerma
name: Robledo, L. M.
name: Rodriguez-Guzman, R.
name: Rombouts, S. M. A.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: We present a new exactly solvable Hamiltonian with a separable pairing interaction and non-degenerate single-particle energies. It is derived from the hyperbolic family of Richardson-Gaudin models and possesses two free parameters, one related to an interaction cutoff and the other to the pairing strength. These two parameters can be adjusted to give an excellent reproduction of Gogny self-consistent mean-field calculations in the canonical basis.
description: 4 pages, 3 figures
Social change and the repeal of the Communal Property Act
Creators: name: Farmer, Gavin N.
Publisher: name: University of Calgary
Year: 1977
Subjects: subject: KB 2018 C7 F37 1976 Microfiche
subject: Civil rights - Alberta
subject: Alberta. Communal Property Act
subject: Hutterite Brethren - Alberta

description: Bibliography: p. 145-154.
Nora (Pula, CA) - Ex base della Marina Militare La struttura a esedra dell’area Omega. Un esempio di documentazione digitale di un monumento in fase di scavo
Creators: name: Cruccas, Emiliano
name: Lanteri, Luca
Publisher: name: Layers. Archeologia Territorio Contesti
Year: 2019

description: Abstract: Since 2013, the University of Cagliari has been operating in the sector of the Punic-Roman city of Nora, formerly occupied by a Navy base. The investigations allowed to bring to light a sector characterized by the presence of a large space paved with andesite blocks and marked by the presence of monumental and decorative structures connected with the use of water. Among these, here is analyzed an exedra structure, whose study and relief is accompanied by a processing of a digital model performed through the use of photogrammetric software. Riassunto: Dal 2013 l’Università di Cagliari opera nel settore della città punico-romana di Nora occupato in passato da una base della Marina Militare. Le indagini hanno permesso di portare alla luce un settore caratterizzato dalla presenza di un ampio spazio pavimentato con basoli di andesite e segnato dalla presenza di strutture monumentali e decorative connesse con l’acqua. Tra queste, ne viene qui analizzata una conformata a esedra, il cui studio e rilievo è corredato da una elaborazione di un modello digitale eseguito attraverso l’uso di software fotogrammetrico.
description: Layers. Archeologia Territorio Contesti, No 4 (2019)
Blueprint of Memorial Rock Proposal, Herbert E. Smith, April 6, 1946
Creators: name: Smith, Herbert E.
name: Melville, Ward, 1887-1977
name: Organization, Ward Melville Heritage
name: Stony Brook Community Fund
Publisher: name: Unknown
Year: 0
Subjects: Stony Brook
Sketches
Blueprints
Plans
Architects
Shopping centers
Architectural drawings
Landscape architecture drawings

description: This architectural drawing shows the Memorial Rock Proposal drawn by landscape architect, Herbert E. Smith, Stony Brook. Plan is dated April 6, 1946.