cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Composite GUTs: models and expectations at the LHC
Creators: name: Frigerio, Michele
name: Serra, Javi
name: Varagnolo, Alvise
Publisher: name: arXiv
Year: 2011
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We investigate grand unified theories (GUTs) in scenarios where electroweak (EW) symmetry breaking is triggered by a light composite Higgs, arising as a Nambu-Goldstone boson from a strongly interacting sector. The evolution of the standard model (SM) gauge couplings can be predicted at leading order, if the global symmetry of the composite sector is a simple group G that contains the SM gauge group. It was noticed that, if the right-handed top quark is also composite, precision gauge unification can be achieved. We build minimal consistent models for a composite sector with these properties, thus demonstrating how composite GUTs may represent an alternative to supersymmetric GUTs. Taking into account the new contributions to the EW precision parameters, we compute the Higgs effective potential and prove that it realizes consistently EW symmetry breaking with little fine-tuning. The G group structure and the requirement of proton stability determine the nature of the light composite states accompanying the Higgs and the top quark: a coloured triplet scalar and several vector-like fermions with exotic quantum numbers. We analyse the signatures of these composite partners at hadron colliders: distinctive final states contain multiple top and bottom quarks, either alone or accompanied by a heavy stable charged particle, or by missing transverse energy.
description: 55 pages, 13 figures, final version to be published in JHEP
The meaning of the lived experience of nonattachment for long-term yoga practitioners
Creators: name: Herfst, Andrew
Publisher: name: University of British Columbia
Year: 2017

description: Yoga is a popular alternative mental health intervention and an integral component of leading mindfulness-based interventions. Yoga helps with concerns like anxiety and depression (e.g., Field, 2011), but we do not yet understand how it helps. With the aim of developing more potent theoretical models of therapeutic yoga, there have been calls in the literature to explore yoga’s underlying principles and constructs, and to use qualitative research methods to look at the lived experience of healthy, long-term practitioners (e.g., Field, 2011; Solomonova, 2015). Mindful nonattachment (e.g., Sahdra, Brown, & Shaver, 2010), which is associated with the promotion of psychological freedom, emotion regulation, well-being, and distress tolerance (e.g., Desbordes et al., 2014; Sahdra et al., 2010; Shapiro, Carlson, Astin, & Freedman, 2006), is an important underlying construct in yoga and may be a helping factor not only in mindfulness, but across psychotherapeutic modalities. This research project investigates the meaning of the lived experience of nonattachment for four long-term yoga practitioners from Vancouver BC. Using Smith, Flowers, and Larkin’s (2009) method of Interpretative Phenomenological Analysis, interviews with long-term yoga practitioners were conducted to explore their experience of nonattachment in detail. Six superordinate themes emerged: a flexible identity in relationship, developing nonattachment moment by moment, how to see things differently, processing lived experience, choosing freedom, and framework for a way of life. Areas of congruence with the literature and novel findings are discussed in view of the relevant literature on nonattachment and on self-regulatory features of yoga.
Charakterisierung der Ubiquitinierung des Ku80-Proteins
Creators: name: Naeve, Florian
Publisher: name: Karlsruhe
Year: 2012
Subjects: Ku80
BRCA1
NHEJ
Ubiquitinierung

description: Die an das humane Ku80-Protein angehefteten Ubiquitinketten sind hauptsächlich über die Lysine an den Positionen 33 und 63 miteinander verbunden.Eine Überexpression von BRCA1 bzw. RNF8 führt zu einer verstärkten Ubiquitinierung des humanen Ku80-Proteins.In einem Ku80-Fragment mit 168 Aminosäuren sind die Lysine an den Positionen 125/126/129 für die Ubiquitinierung verantwortlich.Die Reduktion der BRCA1 Menge mittels siRNA führt zu einer verringerten Bindung von humanem Ku80 an den DSB.
Insurgent Planning on the South Side of Chicago: Engaging and Growing Community through Regenerative Neighborhood Development
Creators: name: Craciunescu, Eugen
Publisher: name: University of Chicago
Year: 2022

description: This paper critically examines the development of insurgent planning (IP) efforts on the South Side of Chicago, and their implications for effective resident engagement. For a better understanding of these insurgent planning efforts in Chicago, this paper examines the case study of Sweet Water Foundation (SWF), a non-profit neighborhood revitalization organization on the South Side. SWF’s practices are contrasted to three municipal plans developed for the South Side in order to analyze how the organization’s planning strategy serves as an insurgent alternative to traditional forms of resident engagement. This research contributes to IP theory by arguing that states are capable of incorporating insurgent strategies for resident engagement into their own initiatives, a claim evidenced by recent shifts in local governance and the significant role of grassroots community organizations in municipal planning endeavors. Finally, policy recommendations are offered for the City of Chicago in order to bolster their resident engagement efforts.
Linking Software Architecture Documentation and Models
Creators: name: Schulz, Sophie
Publisher: name: Karlsruher Institut für Technologie (KIT)
Year: 2020
Subjects: Natural Language Processing
Software Architecture Documentation
Consistency

description: In der Softwareentwicklung ist die Konsistenz zwischen Artefakten ein wichtiges Thema. Diese Arbeit schlägt eine Struktur zur Erkennung von korrespondierenden und fehlenden Elementen zwischen einer Dokumentation und einem formalen Modell vor. Zunächst identifiziert und extrahiert der Ansatz die im Text beschriebenen Modellinstanzen und -beziehungen. Dann verbindet der Ansatz diese Textelemente mit ihren entsprechenden Gegenstücken im Modell. Diese Verknüpfungen sind mit TraceLinks vergleichbar. Der Ansatz erlaubt jedoch die Abstufung dieser Links. Darüber hinaus generiert der Ansatz Empfehlungen für Elemente, die nicht im Modell enthalten sind. Der Ansatz identifiziert Modellnamen und -typen mit einem F1-Score von über 54%. 60% der empfohlenen Instanzen stimmen mit den in der Benutzerstudie gefundenen Instanzen überein. Bei der Identifizierung von Beziehungen und dem Erstellen von Verknüpfungen erzielte der Ansatz vielversprechende Ergebnisse. Die Ergebnisse können durch zukünftige Arbeiten verbessert werden. Dies ist realisierbar da der Entwurf eine einfache Erweiterung des Ansatzes erlaubt.
Experimental and Numerical Investigation of the Influence of Multiple-Burner Arrangements on Combustion Instabilities in Turbulent Swirl-Stabilized Flames
Creators: name: Kraus, Christian
Publisher: name: Karlsruhe
Year: 2014
Subjects: Combustion instabilities
Turbulent Flames
Multiple Burners
LES

description: Combustion instabilities are still an important target of scientific investigation. Most research is performed on single-burner combustors. However, burner systems in technical applications are often operated with multiple burners and annular combustion chambers. In the thesis the influences of the burner-burner interactions in the multiple burner arrangements on the combustion instabilities of the modular combustor are investigated experimentally and numerically.
69736: University College and the Great War
Creators: name: Project Team, Oxford At War
Publisher: name: University of Oxford
Year: 2023
Subjects: classificationCode: 430304
subject: British history
classificationCode: 430308
subject: European history (excl. British, classical Greek and Roman)
classificationCode: 430316
subject: International history

description: This blog article presents a digital version of a college exhibition displayed in November 2014. It focuses on the Univ students who served in the First World War and the way in which their details were recorded during and post-conflict. It also gives information about a German Univ student who served, Rolf von Seldeneck.
Über die kritischen Werte der Rankin-Selberg-Faltungen zu nicht-cuspidalen Gelbart-Jacquet-Lifts
Creators: name: Zhao, Jingwei
Publisher: name: Karlsruhe
Year: 2014
Subjects: Rankin-Selberg-Faltung
Größencharater
p-adisch Interpolation
elliptische Kurven mit CM
symmetrisches Quadrat

description: Gegenstand dieser Arbeit ist die Rankin-Selberg-L-Funktion zu einer elliptischen Kurve mit komplexer Multiplikation und deren symmetrischem Quadrat. Wir stellen sie dar als Produkt der Hecke-L-Funktionen zu Größencharakteren, bestimmen die Funktionalgleichung und untersuchen den Funktionswert an der kritischen Stelle auf Algebraizität. Im Anschluss befassen wir uns mit der p-adischen Interpolation der kritischen Werte und vergleichen zwei verschiedene Interpolationsmethoden.
Probabilistic cost models for lifecycle design of buildings
Creators: name: Gill, Gurvinder Singh
Publisher: name: University of British Columbia
Year: 2017

description: This thesis presents a collection of numerical models that predict the total lifetime cost of buildings. Different models are developed for different phases in the life of a building, i.e., extraction and manufacturing of materials, construction, operation, hazards, demolition, and recycling. Models forecast direct costs, environmental impact costs, and human health costs related to each such phase. The variability in the parameters that enter the cost models is addressed using random variables. The estimate of the total cost of a building can be used in future work to optimize the structural design. Despite powerful new optimization algorithms, the answer to what is holistically the optimal choice of materials, dimensions, and configurations is often unanswered in practice. One reason is that developers, architects, users, and societies may have different objectives, ranging from the cost of construction to aesthetic appeal and environmental impact. Another problem is the lack of unbiased models to predict the costs and benefits that matter to private and public stakeholders. Thus, concerns such as environmental impacts and cost of potential earthquakes are rarely quantified in an explicit and comprehensive manner. This issue is addressed in this thesis through the development of a collection of unified probabilistic cost models for a broad range of costs and benefits. The models proposed in this thesis are implemented in a computer program for simulation of building behaviour.
Untersuchungen zum Einfluss von Sulforaphan auf die DNA-Einzelstrangbruch- und Nukleotidexzisionsreparatur
Creators: name: Piberger, Ann Liza
Publisher: name: Karlsruhe
Year: 2014

description: Eine Risikobewertung von Broccoli-basierten Nahrungsergänzungsmitteln fehlt bis dato. Die vorliegende Arbeit leistet in diesem Kontext nun erstmals einen kritischen Beitrag zur Auswirkung der bioaktiven Substanz Sulforaphan (SFN) auf essentielle DNA-Reparaturprozesse, die anhand der Prozessierung und Reparatur zweier Modellläsionen in Zellkulturen beurteilt wurden. Es zeigte sich, dass SFN beide Reparaturwege inhibiert und Zink-bindende Strukturen dabei potentielle Angriffspunkte darstellen.
Entwicklung und Anwendung quantenchemischer Methoden mit relativistischen, entkoppelten Operatoren
Creators: name: Middendorf, Nils
Publisher: name: Karlsruhe
Year: 2014

description: Die vorliegende Arbeit beschäftigt sich mit der Implementierung und Anwendung quantenchemischer Methoden basierend auf relativistischen, entkoppelten Operatoren. Dies umfasst neben dem störungstheoretischen DPT-Ansatz auch die selbstkonsistente X2C-Methode sowie die zugehörigen quasirelativistischen Kernableitungen. Damit sind u.a. die Berechnung elektronischer Spin-Bahn-Aufspaltungsenergien oder die Optimierung relativistisch korrigierter Molekülstrukturen möglich.
A Data-Analysis and Sensitivity-Optimization Framework for the KATRIN Experiment
Creators: name: Kleesiek, Marco
Publisher: name: Karlsruhe
Year: 2014
Subjects: Neutrino physics
KATRIN experiment
data analysis
statistical methods
neutrino mass sensitivity

description: Presently under construction, the Karlsruhe TRitium Neutrino (KATRIN) experiment is the next generation tritium beta-decay experiment to perform a direct kinematical measurement of the electron neutrino mass with an unprecedented sensitivity of 200 meV (90% C.L.). This thesis describes the implementation of a consistent data analysis framework, addressing technical aspects of the data taking process and statistical challenges of a neutrino mass estimation from the beta-decay electron spectrum.
Nontrivial topological structures of spacetime and implications for particle propagation
Creators: name: Sorba, Fabrizio
Publisher: name: Karlsruhe
Year: 2014

description: Spacetime foam, which describes the quantum fluctuations of spacetime, is one of the possible characteristics of a quantum theory of gravity. One of the many approaches to spacetime foam consists in equipping spacetime with a distribution of microscopic structures with nontrivial topology. In this thesis, we follow this approach considering various scenario in order to investigate different aspects of spacetime foam.
Measurement of the Depth of Shower Maximum in the Transition Region between Galactic and Extragalactic Cosmic Rays with the Pierre Auger Observatory
Creators: name: Porcelli, Alessio
Publisher: name: Karlsruhe
Year: 2014
Subjects: Xmax
Astroparticle
Mass Composition
Elongation rate
Pierre Auger Observatory

description: In this thesis the firsts two moments of the maximum depth of the air showers are measured. The fluorescence detector of the Pierre Auger Observatory are used. E(Xmax) and sigma(Xmax) are presented for almost three order of magnitude of the energy thanks to the new telescopes HEAT. The results at energies above 10^18 eV confirm the previous measurements of the Pierre Auger Collaboration. Below this energy, an unexpected feature at 10^17.5 eV is found in the analysis of the distribution.
Untersuchungen zur zeitaufgelösten Spannungsentwicklung und Eigenspannungsentstehung beim Laserstrahlstandhärten am Beispiel des Stahls 42CrMo4
Creators: name: Kostov, Vladimir
Publisher: name: Karlsruhe
Year: 2014
Subjects: Laserstrahlhärten
zeitaufgelöste röntgenographische in-situ Spannungsanalyse
Eigenspannungen

description: Die zeit- und temperaturabhängige Entwicklung der phasenspezifischen Spannungen während des Laserstrahlhärtens wurde am Beispiel des Stahls 42CrMo4 untersucht. In-situ-Synchrotron-Ronröntgenbeugungsanalysen mit Messraten bis zu 10 Hz wurden unter Verwendung einer im Rahmen der Arbeit vorgeschlagenen Mess- und Auswertestrategie durchgeführt, mit dem Ziel, ein besseres Prozessverständnis in Bezug auf die Eigenspannungsausbildung beim Laserstrahlhärten zu erlangen.
The initial spectrum of fluctuations in the little bang
Creators: name: Dusling, Kevin
name: Gelis, Francois
name: Venugopalan, Raju
Publisher: name: arXiv
Year: 2011
Subjects: subject: Nuclear Theory (nucl-th)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: High parton densities in ultra-relativistic nuclear collisions suggest a description of these collisions wherein the high energy nuclear wavefunctions and the initial stages of the nuclear collision are dominated by classical fields. This underlying paradigm can be significantly improved by including quantum fluctuations around the classical background fields. One class of these contributes to the energy evolution of multi-parton correlators in the nuclear wavefunctions. Another dominant class of unstable quantum fluctuations grow rapidly with proper time $τ$ after the collision. These secular terms appear at each loop order; the leading contributions can be resummed to all loop orders to obtain expressions for final state observables. The all-order result can be expressed in terms of the spectrum of fluctuations on the initial proper time surface. We compute, in $A^τ=0$ gauge, the essential elements in this fluctuation spectrum--the small quantum fluctuation modes in the classical background field. With our derivation in QCD, we have all the ingredients to compute inclusive quantities in heavy ion collisions at early times including i) all--order leading logs in Bjorken $x_{1,2}$ of the two nuclei, ii) all strong multiple scattering contributions, and iii) all-order leading secular terms. In the simpler analogous formalism for a scalar $ϕ^4$ theory, numerical analysis of the behavior of the energy-momentum tensor is strongly suggestive of early hydrodynamic flow in the system. In QCD, in addition to studying the possible early onset of hydrodynamic behavior, additional important applications of our results include a) the computation of sphaleron transitions off-equilibrium, and b) "jet quenching", or medium modification of parton spectra, in strong color fields at early times.
description: 37 pages, 4 figures
Photon-induced vanishing of magnetoconductance in 2D electrons on liquid He
Creators: name: Konstantinov, Denis
name: Kono, Kimitoshi
Publisher: name: arXiv
Year: 2010
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We report on a novel transport phenomenon realized by optical pumping in surface state electrons on helium subjected to perpendicular magnetic fields. The electron dynamics is governed by the photon-induced excitation and scattering-mediated transitions between electric subbands. In a range of magnetic fields, we observe vanishing longitudinal conductivity sigma_xx. Our result suggests the existence of radiation-induced zero-resistance states in the nondegenerate 2D electron system.
description: 4 pages, 5 figures
Some aspects of the $m$-adic analysis and its applications to $m$-adic stochastic processes
Creators: name: Dolgopolov, Mikhail V.
name: Zubarev, Alexander P.
Publisher: name: arXiv
Year: 2010
Subjects: subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: In this paper we consider a generalization of analysis on $p$-adic numbers field to the $m$ case of $m$-adic numbers ring. The basic statements, theorems and formulas of $p$-adic analysis can be used for the case of $m$-adic analysis without changing. We discuss basic properties of $m$-adic numbers and consider some properties of $m$-adic integration and $m$-adic Fourier analysis. The class of infinitely divisible $m$-adic distributions and the class of $m$-adic stochastic Levi processes were introduced. The special class of $m$-adic CTRW process and fractional-time $m$-adic random walk as the diffusive limit of it is considered. We found the asymptotic behavior of the probability measure of initial distribution support for fractional-time $m$-adic random walk.
description: 18 pages
A robust upper limit on N_eff from BBN, circa 2011
Creators: name: Mangano, Gianpiero
name: Serpico, Pasquale D.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: We derive here a robust bound on the effective number of neutrinos from constraints on primordial nucleosynthesis yields of deuterium and helium. In particular, our results are based on very weak assumptions on the astrophysical determination of the helium abundance, namely that the minimum effect of stellar processing is to keep constant (rather than increase, as expected) the helium content of a low-metallicity gas. Using the results of a recent analysis of extragalactic HII regions as upper limit, we find that Delta Neff<= 1 at 95 % C.L., quite independently of measurements on the baryon density from cosmic microwave background anisotropy data and of the neutron lifetime input. In our approach, we also find that primordial nucleosynthesis alone has no significant preference for an effective number of neutrinos larger than the standard value. The ~2 sigma hint sometimes reported in the literature is thus driven by CMB data alone and/or is the result of a questionable regression protocol to infer a measurement of primordial helium abundance.
description: 5 pages, 1 table, 1 figure. Minor improvements and extensions in the analysis, clarifications and reference added, conclusions slightly strengthened. Matches version published in Phys. Lett. B
Retention of a Primordial Cold Classical Kuiper Belt in an Instability-Driven Model of Solar System Formation
Creators: name: Batygin, Konstantin
name: Brown, Michael E.
name: Fraser, Wesley C.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: FOS: Physical sciences

description: The cold classical population of the Kuiper belt exhibits a wide variety of unique physical characteristics, which collectively suggest that its dynamical coherence has been maintained through out the solar system's lifetime. Simultaneously, the retention of the cold population's relatively unexcited orbital state has remained a mystery, especially in the context of a solar system formation model, that is driven by a transient period of instability, where Neptune is temporarily eccentric. Here, we show that the cold belt can survive the instability, and its dynamical structure can be reproduced. We develop a simple analytical model for secular excitation of cold KBOs and show that comparatively fast apsidal precession and nodal recession of Neptune, during the eccentric phase, are essential for preservation of an unexcited state in the cold classical region. Subsequently, we confirm our results with self-consistent N-body simulations. We further show that contamination of the hot classical and scattered populations by objects of similar nature to that of cold classicals has been instrumental in shaping the vast physical diversity inherent to the Kuiper belt.
description: 9 pages, 11 figures, accepted for publication in ApJ
Electromagnetic mass differences of SU(3) baryons within a chiral soliton model
Creators: name: Yang, Ghil-Seok
name: Kim, Hyun-Chul
name: Polyakov, Maxim V.
Publisher: name: arXiv
Year: 2010
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Experiment (hep-ex)
subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: We investigate the electromagnetic mass differences of SU(3) baryons, using an "model-independent approach" within a chiral soliton model. The electromagnetic self-energy corrections to the masses of the baryon are expressed as the baryonic two-point correlation function of the electromagnetic currents. Using the fact that the electromagnetic current can be treated as an octet operator, and considering possible irreducible representations of the correlation function, we are able to construct a general collective operator for the electromagnetic self-energies, which consists of three unknown parameters. These parameters are fixed, the empirical data for the electromagnetic mass differences of the baryon octet being employed. We predict those of the baryon decuplet and antidecuplet. In addition, we obtain various mass relations between baryon masses within the corresponding representation with isospin symmetry breaking considered. We also predict the physical mass differences of the baryon decuplet. The results are in good agreement with the exisiting data.
description: 8 pages. To appear in Phys. Lett. B
A Closed Formula for the Barrier Transmission Coefficient in Quaternionic Quantum mechanics
Creators: name: De Leo, Stefano
name: Ducati, Gisele
name: Leonardi, Vinicius
name: Pereira, Kenia
Publisher: name: arXiv
Year: 2010
Subjects: subject: Mathematical Physics (math-ph)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: In this paper, we analyze, by using a matrix approach, the dynamics of a non-relativistic particle in presence of a quaternionic potential barrier. The matrix method used to solve the quaternionic Schrodinger equation allows to obtain a closed formula for the transmission coefficient. Up to now, in quaternionic quantum mechanics, almost every discussion on the dynamics of non-relativistic particle was motived by or evolved from numerical studies. A closed formula for the transmission coefficient stimulates an analysis of qualitative differences between complex and quaternionic quantum mechanics, and, by using the stationary phase method, gives the possibility to discuss transmission times.
description: 10 pages, 2 figures
Erlangen Programme at Large 3.2: Ladder Operators in Hypercomplex Mechanics
Creators: name: Kisil, Vladimir V.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Quantum Physics (quant-ph)
subject: Mathematical Physics (math-ph)
subject: Complex Variables (math.CV)
subject: Representation Theory (math.RT)
subject: FOS: Physical sciences
subject: FOS: Mathematics
subject: 81R05, 81R15, 22E27, 22E70, 30G35, 43A65

description: We revise the construction of creation/annihilation operators in quantum mechanics based on the representation theory of the Heisenberg and symplectic groups. Besides the standard harmonic oscillator (the elliptic case) we similarly treat the repulsive oscillator (hyperbolic case) and the free particle (the parabolic case). The respective hypercomplex numbers turn to be handy on this occasion, this provides a further illustration to Similarity and Correspondence Principle. Keywords: Heisenberg group, Kirillov's method of orbits, geometric quantisation, quantum mechanics, classical mechanics, Planck constant, dual numbers, double numbers, hypercomplex, jet spaces, hyperbolic mechanics, interference, Fock--Segal--Bargmann representation, Schrödinger representation, dynamics equation, harmonic and unharmonic oscillator, contextual probability, symplectic group, metaplectic representation, Shale--Weil representation
description: LaTeX2e, 12 pages, 3 EPS pictures in one figures; v2: the illustration is added, several small improvements; v3: minor corrections, several references are added; v4: minor corrections
Projected Quasiparticle Theory for Molecular Electronic Structure
Creators: name: Scuseria, Gustavo E.
name: Jimenez-Hoyos, Carlos A.
name: Henderson, Thomas M.
name: Samanta, Kousik
name: Ellis, Jason K.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: We derive and implement symmetry-projected Hartree-Fock-Bogoliubov (HFB) equations and apply them to the molecular electronic structure problem. All symmetries (particle number, spin, spatial, and complex conjugation) are deliberately broken and restored in a self-consistent variation-after-projection approach. We show that the resulting method yields a comprehensive black-box treatment of strong correlations with effective one-electron (mean-field) computational cost. The ensuing wave function is of multireference character and permeates the entire Hilbert space of the problem. The energy expression is different from regular HFB theory but remains a functional of an independent quasiparticle density matrix. All reduced density matrices are expressible as an integration of transition density matrices over a gauge grid. We present several proof-of-principle examples demonstrating the compelling power of projected quasiparticle theory for electronic structure theory.
Gathering knowledge : Indigenous methodologies of land/place-based visual storytelling/filmmaking and visual sovereignty
Creators: name: Christian, Dorothy
Publisher: name: University of British Columbia
Year: 2017

description: This dissertation addresses two questions that examine how localized cultural knowledge informs production practices in visual narratives produced for Fourth World Cinema and how Indigenous visual storytelling/filmmaking styles based in that knowledge determine the film elements, thus the cultural congruency of their selected aesthetics. Secwepemc-Syilx systems of knowledge in British Columbia are used as an exemplar for the development of a localized theory for creating visually sovereign narratives for Fourth World Cinema. This culturally specific ontology formulates a land/place-based identity, specific to Secwepemc-Syilx territories. Land, story and cultural protocols are central to this work and the seamless relational quality is illustrated by emphasizing how integral they are to Indigenous self-representation and identity. In the film discourse, the researcher brings together Manuel (Secwepemc) and Poslun’s Fourth World (1974) and Barclay’s (Maori) (1990, 2003a, 2003b) assertion of a Fourth Cinema to further develop the notion of a Fourth World Cinema. The ways that Indigenous film aesthetics shape the meaning of visual sovereignty and the concept of cultural congruency in constructing film elements are fundamental for Fourth World Cinema. In the globalization and film discourses the researcher interrogates how the concepts of political identity (indigeneity) and geographical location (deterritorialization) affect the treatment of Indigenous representation. An Indigenous Inquiry process is set in an Indigenous research paradigm that privileges Indigenous systems of knowledge. Indigenous and Euro-Western systems of knowledge(s) are juxtaposed to reveal the philosophical differences that affect land, story, and cultural protocols. Archibald’s (2008) seven Indigenous storywork principles of respect, responsibility, reciprocity, reverence, holism, interrelatedness, and synergy set the framework for the shared conversations of 13 Indigenous knowledge keepers. The findings of the knowledge gathered illustrate the commonalities in the cosmologies within the diverse expansive Indigenous worldviews. Another layer of investigation documents a peer-to-peer discussion between the researcher who is a visual storyteller and a diverse group of 17 Indigenous filmmakers who shared stories from their film production experiences. Their perspectives affirmed the role of culture in contemporary film production practices and led to the development of the concepts of story, land, cultural protocols, and Indigenous identity in Fourth World Cinema.
Resolution of Topological  Contradictions and Nonsensicalities
Creators: name: Mine, Alève
Publisher: name: Zenodo
Year: 2025
Subjects: data processing
modeling and simulation
topology
metrology
artificial intelligence
consistency

description: This paper details one aspect of the micro considerations that are required in the RRE process and that are not stated in the RRE White Paper https://zenodo.org/records/10633773. The here presented considerations regard the treatment of data in the modeling of the system considered.
Study of the gamma-ray source 1AGL J2022+4032 in the Cygnus Region
Creators: name: Chen, A. W.
name: Piano, G.
name: Tavani, M.
name: Trois, A.
name: Dubner, G.
name: ~Giacani, E.
name: Argan, A.
name: Barbiellini, G.
name: Bulgarelli, A.
name: Caraveo, P.
name: Cattaneo, P. W.
name: Costa, E.
name: D'Ammando, F.
name: De Paris, G.
name: Del Monte, E.
name: Di Cocco, G.
name: Donnarumma, I.
name: Evangelista, Y.
name: Feroci, M.
name: Ferrari, A.
name: Fiorini, M.
name: Fuschino, F.
name: Galli, M.
name: Gianotti, F.
name: Giuliani, A.
name: Giusti, M.
name: Labanti, C.
name: Lazzarotto, F.
name: Lipari, P.
name: Longo, F.
name: Marisaldi, M.
name: Mereghetti, S.
name: Moretti, E.
name: Morselli, A.
name: Pacciani, L.
name: Pellizzoni, A.
name: Perotti, F.
name: Picozza, P.
name: Pilia, M.
name: Prest, M.
name: Pucella, G.
name: Rapisarda, M.
name: Rappoldi, A.
name: Sabatini, S.
name: Scalise, E.
name: Soffitta, P.
name: Striani, E.
name: Trifoglio, M.
name: Vallazza, E.
name: Vercellone, S.
name: Vittorini, V.
name: Zambra, A.
name: Zanello, D.
name: Pittori, C.
name: Giommi, P.
name: Verrecchia, F.
name: Lucarelli, F.
name: Santolamazza, P.
name: Colafrancesco, S.
name: Antonelli, L. A.
name: Salotti, L.
Publisher: name: arXiv
Year: 2010
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: Identification of gamma-ray-emitting Galactic sources is a long-standing problem in astrophysics. One such source, 1AGL J2022+4032, coincident with the interior of the radio shell of the supernova remnant Gamma Cygni (SNR G78.2+2.1) in the Cygnus Region, has recently been identified by Fermi as a gamma-ray pulsar, LAT PSR J2021+4026. We present long-term observations of 1AGL J2022+4032 with the AGILE gamma-ray telescope, measuring its flux and light curve. We compare the light curve of 1AGL J2022+4032 with that of 1AGL J2021+3652 (PSR J2021+3651), showing that the flux variability of 1AGL J2022+4032 appears to be greater than the level predicted from statistical and systematic effects and producing detailed simulations to estimate the probability of the apparent observed variability. We evaluate the possibility that the gamma-ray emission may be due to the superposition of two or more point sources, some of which may be variable, considering a number of possible counterparts. We consider the possibility of a nearby X-ray quiet microquasar contributing to the flux of 1AGL J2022+4032 to be more likely than the hypotheses of a background blazar or intrinsic gamma-ray variabilty of LAT PSR J2021+4026.
description: 7 pages, 7 figures, accepted for publication in Astronomy & Astrophysics
Collective modes and the speed of sound in the Fulde-Ferrell-Larkin-Ovchinnikov state
Creators: name: Heikkinen, M. O. J.
name: Törmä, P.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Quantum Gases (cond-mat.quant-gas)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: We consider the density response of a spin-imbalanced ultracold Fermi gas in an optical lattice in the Fulde-Ferrell-Larkin-Ovchinnikov (FFLO) state. We calculate the collective mode spectrum of the system in the generalised random phase approximation and find that though the collective modes are damped even at zero tempererature, the damping is weak enough to have well-defined collective modes. We calculate the speed of sound in the gas and show that it is anisotropic due to the anisotropy of the FFLO pairing, which implies an experimental signature for the FFLO state.
description: 13 pages, 9 figures (revised version)
Fluctuation theorems for continuously monitored quantum fluxes
Creators: name: Campisi, Michele
name: Talkner, Peter
name: Hänggi, Peter
Publisher: name: arXiv
Year: 2010
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: It is shown that quantum fluctuation theorems remain unaffected if measurements of any kind and number of observables are performed during the action of a force protocol. That is, although the backward and forward probabilities entering the fluctuation theorems are both altered by these measurements, their ratio remains unchanged. This observation allows to describe the measurement of fluxes through interfaces and, in this way, to bridge the gap between the current theory, based on only two measurements performed at the beginning and end of the protocol, and experiments that are based on continuous monitoring.
description: 4 pages, 1 figure. Accepted in Physical Review Letters
The GL_n(q)-module structure of the symmetric algebra around the Steinberg module
Creators: name: Wan, Jinkui
name: Wang, Weiqiang
Publisher: name: arXiv
Year: 2010
Subjects: subject: Representation Theory (math.RT)
subject: Group Theory (math.GR)
subject: FOS: Mathematics

description: We determine the graded composition multiplicity in the symmetric algebra S(V) of the natural GL_n(q)-module V, or equivalently in the coinvariant algebra of V, for a large class of irreducible modules around the Steinberg module. This was built on a computation, via connections to algebraic groups, of the Steinberg module multiplicity in a tensor product of S(V) with other tensor spaces of fundamental weight modules.
description: v2, 21 pages, minor changes, some typos fixed and updated references, Adv. in Math. (to appear)
Skin mechanics, intradermal delivery and biosensing with hollow metallic microneedles
Creators: name: Ranamukhaarachchi, Sahan
Publisher: name: University of British Columbia
Year: 2017

description: Microneedles (MNs) have gained significant attention over the past decade in drug delivery and biosensing due to their minimally-invasive and less painful nature of use compared to intramuscular/subcutaneous injections, and significant biological benefits. Several fundamental processes enabling MN functionality have not been completely understood, including mechanical interaction between MNs and skin for targeted depth penetration; and precise quantification of fluid delivery in the skin. This thesis presents novel materials, and methodologies for evaluating MN interactions with skin, and investigates the performance of hollow MNs in both intradermal fluid drug delivery and biosensing. A micromechanical comparison between human skin and porcine skin was performed using to determine their mechanical behavior affecting MN insertions. Stratum corneum (SC) of human skin was significantly stiffer (117 ± 42 MPa) than porcine skin (81 ± 32 MPa), requiring higher force of MN insertion to rupture the SC in human skin (107 ± 17 mN) than porcine skin (96 ± 23 mN). An artificial mechanical skin model was developed layer-by-layer to simulate tough human skin (MN insertion force 162 ± 11 mN) and to study the dynamics of MN insertion. Key factors that affected MN insertions into skin, including velocity of impact and total energy delivered to the skin, were identified. ID fluid delivery by hollow MNs was assessed using a novel method involving the low-activity radiotracer technetium-99m pertechnetate (⁹⁹mTcO₄₋). Its delivery allowed accurate quantification of fluid delivered into the skin, back-flowed to the skin surface, and total fluid ejected from the syringes via ID devices with sub-nanoliter resolution. Hollow MNs performed more accurate ID injections than conventional needles (93% vs. 69-87% of fluid per 0.1 mL injection volume). A MN-optofluidic biosensing platform capable of eliminating blood sampling was developed with MNs that can access dermal interstitial fluid that contains numerous drugs at concentrations comparable to blood. The MN lumen was functionalized to collect, trap and detect drugs in 0.6 nL of sample. The optofluidic components provided specific high-sensitivity absorbance measurements for drug binding using enzyme-linked assays. Streptavidin-horseradish peroxidase (LoD = 60.2 nM) and vancomycin (LoD = 84 nM) binding validated this point of care system.
STUDY OF ESTERS OF ABSOLUTE ETHANOL EXTRACT OF THE CENTRAL ASIAN MINT PLANT
Creators: name: Saitkulov, Foziljon
name: Umarov, Samandar
name: Tog'ulova, Sevara
Publisher: name: Zenodo
Year: 2023

description: Mint is very popular in English cuisine, it is added to lamb meat sauces. In American cuisine, it is added to improve the taste and aroma of mixed drinks made from tomato juice and in various fruit and vegetable salads. In Arabic, Spanish and Italian cuisine, mint is served as a spice or added to various spice mixtures. Mint leaves enhance the flavor of roasts, roast lamb, lamb and chicken. It is added to stewed cabbage, carrots, peas or leeks.
Non-detection in a Fermi/LAT observation of AXP 4U 0142+61: magnetars?
Creators: name: Tong, H.
name: Song, L. M.
name: Xu, R. X.
Publisher: name: arXiv
Year: 2010
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: Significant research in compact stars is currently focused on two kinds of enigmatic sources: anomalous X-ray pulsars (AXPs) and soft gamma-ray repeaters (SGRs). Although AXPs and SGRs are popularly thought to be magnetars, other models (e.g. the accretion model) to understand the observations can still not be ruled out. It is worth noting that a non-detection in a Fermi/LAT observation of AXP 4U 0142+61 has been reported recently by Sasmaz Mus & Gogus. We propose here that Fermi/LAT observations may distinguish between the magnetar model and the accretion model for AXPs and SGRs. We explain how this null observation of AXP 4U 0142+61 favors the accretion model. Future Fermi/LAT observations of AXP 1E 1547.0-5408 and AXP 1E 1048.1-5937 are highly recommended.
description: 10 pages, 3 figures, Accepted for publication in ApJ(Letters)
Evolutionary divergence of Anguillicola crassus, an invasive parasitic swim bladder nematode of eels of the genus Anguilla
Creators: name: Weclawski, Urszula
Publisher: name: Karlsruhe
Year: 2012
Subjects: Anguillicola crassus
invasive
host switch
rapid evolution
allopatric populations
genetic divergence
phenotypic plasticity

description: After its introduction to Europe, Anguillicola crassus, a natural parasite of the Japanese eel, had to face novel conditions that have acted as different selective forces leading to the onset of new phenotypic modifications and genetic adaptations of the parasite. This study revealed that the changes in infectivity, development, reproductive output and morphology observed in the parasite after colonization of the European eel were induced by both genetic adaptation and phenotypic plasticity.
Multi-critical behavior of $Z_2\times O(2)$ Gross-Neveu-Yukawa theory in graphene
Creators: name: Roy, Bitan
Publisher: name: arXiv
Year: 2011
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: Multi-critical behavior of interacting fermions in graphene's honeycomb lattice is presented. In particular, we considered the spin triplet insulating orders, where the spin rotational symmetry of the order parameter is explicitly broken. By casting the problem in terms of Gross-Neveu-Yukawa theory we show that such symmetry-breaking terms are irrelevant near the metal-insulator critical point. A finite Yukawa coupling among bosons and fermions improves the stability of such critical point against the symmetry-breaking perturbations. Physical sources of such symmetry-breaking terms are pointed out. Critical exponents are calculated near the transitions as well.
description: 4 pages, 1 figure, Published Version with corrections and new references
Raman-assisted Rabi resonances in two-mode cavity QED
Creators: name: Grünwald, P.
name: Singh, S. K.
name: Vogel, W.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: The dynamics of a vibronic system in a lossy two-mode cavity is studied, with the first mode being resonant to the electronic transition and the second one being nearly resonant due to Raman transitions. We derive analytical solutions for the dynamics of this system. For a properly chosen detuning of the second mode from the exact Raman resonance, we obtain conditions that are closely related to the phenomenon of Rabi resonance as it is well known in laser physics. Such resonances can be observed in the spontaneous emission spectra, where the spectrum of the second mode in the case of weak Raman coupling is enhanced substantially.
description: 6 pages, 5 figures
Expressionsregulation, Glykosylierung und Funktion von Zelladhäsionsmolekülen der NCAM-Familie im Zebrafischembryo
Creators: name: Langhauser, Melanie
Publisher: name: Karlsruhe
Year: 2012
Subjects: Zebrafisch
NCAM
polySia
Zelladhäsionsmoleküle

description: Das neuronale Zelladhäsionsmolekül NCAM1 wird posttranslational mit einer Polysialinsäurekette modifiziert. PolySia-NCAM1 ist an der Steuerung des Wachstumsmusters von Axonen beteiligt. Aufgrund einer Genomduplikation ist es bei den Knochenfischen zur Duplikation des ncam1-Gens gekommen. Die Funktion von Ncam1a, Ncam1b und Polysialinsäure im Nervensystem des Zebrafisches bilden den Schwerpunkt der vorliegenden Arbeit.
SPIDER - IV. Optical and NIR color gradients in Early-type galaxies: New Insights into Correlations with Galaxy Properties
Creators: name: La Barbera, F.
name: de Carvalho, R. R.
name: de la Rosa, I. G.
name: Gal, R. R.
name: Swindle, R.
name: Lopes, P. A. A.
Publisher: name: arXiv
Year: 2010
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: We present an analysis of stellar population gradients in 4,546 Early-Type Galaxies with photometry in $grizYHJK$ along with optical spectroscopy. A new approach is described which utilizes color information to constrain age and metallicity gradients. Defining an effective color gradient, $\nabla_{\star}$, which incorporates all of the available color indices, we investigate how $\nabla_{\star}$ varies with galaxy mass proxies, i.e. velocity dispersion, stellar (M_star) and dynamical (M_dyn) masses, as well as age, metallicity, and alpha/Fe. ETGs with M_dyn larger than 8.5 x 10^10, M_odot have increasing age gradients and decreasing metallicity gradients wrt mass, metallicity, and enhancement. We find that velocity dispersion and alpha/Fe are the main drivers of these correlations. ETGs with 2.5 x 10^10 M_odot =< M_dyn =< 8.5 x 10^10 M_odot, show no correlation of age, metallicity, and color gradients wrt mass, although color gradients still correlate with stellar population parameters, and these correlations are independent of each other. In both mass regimes, the striking anti-correlation between color gradient and alpha-enhancement is significant at \sim 4sigma, and results from the fact that metallicity gradient decreases with alpha/Fe. This anti-correlation may reflect the fact that star formation and metallicity enrichment are regulated by the interplay between the energy input from supernovae, and the temperature and pressure of the hot X-ray gas in ETGs. For all mass ranges, positive age gradients are associated with old galaxies (>5-7 Gyr). For galaxies younger than \sim 5 Gyr, mostly at low-mass, the age gradient tends to be anti-correlated with the Age parameter, with more positive gradients at younger ages.
description: Accepted for Publication in the Astronomical Journal
Multibaseline gravitational wave radiometry
Creators: name: Talukder, Dipongkar
name: Mitra, Sanjit
name: Bose, Sukanta
Publisher: name: arXiv
Year: 2010
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We present a statistic for the detection of stochastic gravitational wave backgrounds (SGWBs) using radiometry with a network of multiple baselines. We also quantitatively compare the sensitivities of existing baselines and their network to SGWBs. We assess how the measurement accuracy of signal parameters, e.g., the sky position of a localized source, can improve when using a network of baselines, as compared to any of the single participating baselines. The search statistic itself is derived from the likelihood ratio of the cross correlation of the data across all possible baselines in a detector network and is optimal in Gaussian noise. Specifically, it is the likelihood ratio maximized over the strength of the SGWB, and is called the maximized-likelihood ratio (MLR). One of the main advantages of using the MLR over past search strategies for inferring the presence or absence of a signal is that the former does not require the deconvolution of the cross correlation statistic. Therefore, it does not suffer from errors inherent to the deconvolution procedure and is especially useful for detecting weak sources. In the limit of a single baseline, it reduces to the detection statistic studied by Ballmer [Class. Quant. Grav. 23, S179 (2006)] and Mitra et al. [Phys. Rev. D 77, 042002 (2008)]. Unlike past studies, here the MLR statistic enables us to compare quantitatively the performances of a variety of baselines searching for a SGWB signal in (simulated) data. Although we use simulated noise and SGWB signals for making these comparisons, our method can be straightforwardly applied on real data.
description: 17 pages and 19 figures