cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Latent heat of nuclear matter
Creators: name: Carbone, Arianna
name: Polls, Artur
name: Rios, Arnau
name: Vidaña, Isaac
Publisher: name: arXiv
Year: 2010
Subjects: subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: We study the latent heat of the liquid-gas phase transition in symmetric nuclear matter using self-consistent mean-field calculations with a few Skyrme forces. The temperature dependence of the latent heat is rather independent of the mean-field parametrization and can be characterized by a few parameters. At low temperatures, the latent heat tends to the saturation energy. Near the critical point, the latent heat goes to zero with a well-determined mean-field critical exponent. A maximum value of the latent heat in the range l ~ 25-30 MeV is found at intermediate temperatures, which might have experimental relevance. All these features can be explained from very basic principles.
description: 25 pages, 7 figures
title: Moulage d'un haut-relief de l'attique de l'arc de Constantin : présentation de prisonniers à l'empereur
Creators: name: Pierre Moyat
name: Galinand, Cyrille
name: Université Paris1 Panthéon-Sorbonne
Publisher: name: Archeovision
Year: 2022

description: Empereur sur un piédestal à gauche  armée en bas à droite qui amène un prisonnier les mains liées dans le dos.
Coloring random graphs online without creating monochromatic subgraphs
Creators: name: Mütze, Torsten
name: Rast, Thomas
name: Spöhel, Reto
Publisher: name: arXiv
Year: 2011
Subjects: subject: Combinatorics (math.CO)
subject: Probability (math.PR)
subject: FOS: Mathematics

description: Consider the following random process: The vertices of a binomial random graph $G_{n,p}$ are revealed one by one, and at each step only the edges induced by the already revealed vertices are visible. Our goal is to assign to each vertex one from a fixed number $r$ of available colors immediately and irrevocably without creating a monochromatic copy of some fixed graph $F$ in the process. Our first main result is that for any $F$ and $r$, the threshold function for this problem is given by $p_0(F,r,n)=n^{-1/m_1^*(F,r)}$, where $m_1^*(F,r)$ denotes the so-called \emph{online vertex-Ramsey density} of $F$ and $r$. This parameter is defined via a purely deterministic two-player game, in which the random process is replaced by an adversary that is subject to certain restrictions inherited from the random setting. Our second main result states that for any $F$ and $r$, the online vertex-Ramsey density $m_1^*(F,r)$ is a computable rational number. Our lower bound proof is algorithmic, i.e., we obtain polynomial-time online algorithms that succeed in coloring $G_{n,p}$ as desired with probability $1-o(1)$ for any $p(n) = o(n^{-1/m_1^*(F,r)})$.
description: some minor additions
Controlled spreading of complex droplets
Creators: name: Jalaal, Maziyar
Publisher: name: University of British Columbia
Year: 2017

description: The current thesis investigates the controlled spreading of droplets of complex fluids. This thesis makes four primary scientific contributions. Firstly, we provide detailed theoretical analysis on spreading of yield stress fluids. We employ lubrication theory, asymptotic solutions, and numerical simulations to explain the dynamics and final static shape of a viscoplastic droplet on a solid horizontal surface. We show that the final radius of the droplet becomes smaller with increasing the yield stress. Secondly, we provide experimental data to verify our theoretical solutions. In our experiments, we first provide a method to eliminate the apparent slip of the yield stress fluid. The method uses a chemical modification of glass surfaces to generate permanent positive charges, resulting in a no-slip boundary condition. We directly observe the slip and no-slip of the Carbopol droplets, using a visualization method based on confocal microscopy. We then perform shadowgraphy experiments to measure the final radius of the droplets under different conditions such as extruding and impacting droplets. We compare the theoretical and experimental results and discuss the similarities and differences. Briefly, the asymptotic solutions overestimates the experimental results (most likely due to the assumption of a shallow layer), while numerical solutions are much closer to the experimental outcomes. Thirdly, we provide a comprehensive rheological characterization of a particular thermo-responsive fluid, Pluronic F127. We show that the aqueous solution of the polymer undergoes a sol(Newtonian)-gel(yield stress) transition upon heating. We further characterize the properties of the gel in detail. Finally, we show one can thermally trigger a thermo-responsive droplet to externally control the final shape of the droplet on a surface. In short, the final radius of the droplet can be controlled by heating the surface; for a given concentration, the larger the surface temperature, the smaller the final shape of a droplet. In the same part of the thesis, we introduce a novel experimental method based on optical coherence tomography to identify the solidified region inside a droplet.
Phosphorylierung von Mdm2 durch Aurora A und die Bedeutung für die Tumorsuppressor Proteine p53 und Rb
Creators: name: Kieß, Irene Andrea
Publisher: name: Karlsruhe
Year: 2010
Subjects: Aurora A Kinase
Phosphorylierung
p53
Retinoblastom Protein
Mdm2

description: In der Arbeit wurde gezeigt, dass Aurora A Mdm2 phosphoryliert und dass diese beiden Proteine miteinander interagieren. Aurora A beeinflusst die Proteinmenge von p53 und induziert die Ubiquitinierung von p53. Außerdem zeigte Aurora A keinen Einfluss auf die Menge des Rb Proteins. Rb wurde aber durch Aurora A, in Anwesenheit von Mdm2, phosphoryliert. Diese Phosphorylierung hatte physiologische Bedeutung für Rb, wobei Aurora A die Assoziation von Rb mit dem Transkriptionsfaktor E2F-1 inhibierte.
Rural tourism in Bhutan: A tool to achieve Gross National Happiness
Creators: name: ., Kinley
Publisher: name: figshare
Year: 2022
Subjects: subject: 150402 Hospitality Management
subject: FOS: Economics and business
subject: 150603 Tourism Management
subject: 150602 Tourism Forecasting
subject: 150604 Tourism Marketing
subject: 150605 Tourism Resource Appraisal
subject: 150699 Tourism not elsewhere classified
subject: 150606 Tourist Behaviour and Visitor Experience

description: Tourism market in Bhutan is considered as a sustainable in nature guided by the principles of Gross National Happiness. The country has been consistently nurturing the tourism sector as an important source of government revenue through well laid out plans and clearly defined policy objectives. However, such planning is limited to only international tourism market as very limited attention is given towards rural tourism market as well as domestic tourism market in Bhutan by authority, communities, and academicians. This research studies’ the demand, supply, and benefits of rural tourism from domestic tourists’ perspective. The study was conducted at Punakha Dzongkhag (state) as it holds historical and cultural importance for Bhutanese. The data was collected through a structured form of questionnaire survey from the residence of Thimphu Dzongkhag, capital city of Bhutan, by employing interviewers. The research reveals that there is significant demand for rural tourism in the country and that majority of the tourists were satisfied with the supply of rural tourism products. However, the research suggests that the benefits of rural tourism flows mainly to the urban elites only, which indicate that here is acute lack of proper planning and coordination among the farmers, communities and the authorities
More on New Massive Gravity: Exact Solutions
Creators: name: Ahmedov, Haji
name: Aliev, Alikram N.
Publisher: name: arXiv
Year: 2010
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We give a novel description of the recently proposed theory of new massive gravity (NMG) in three dimensions. We show that in terms of a Dirac type differential operator acting on the traceless Ricci tensor, the field equations of the theory reduce to the massive Klein-Gordon type equation with a curvature-squared source term and to a constraint equation. Under a certain relation between the source tensor and the traceless Ricci tensor, fulfilled for constant scalar curvature, the field equations of topologically massive gravity (TMG) can be thought of as the "square-root" of the massive Klein-Gordon type equation. Using this fact, we establish a simple framework for mapping all known algebraic types D and N solutions of TMG into NMG. We also present new exact solutions of algebraic types D and N which are only inherent in NMG.
description: 4 pages, twocolumn REVTeX; Minor cosmetic changes made and new metric added
Finite size properties of staggered $U_q[sl(2|1)]$ superspin chains
Creators: name: Frahm, Holger
name: Martins, Marcio J.
Publisher: name: arXiv
Year: 2010
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: High Energy Physics - Theory (hep-th)
subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: Based on the exact solution of the eigenvalue problem for the $U_q[sl(2|1)]$ vertex model built from alternating 3-dimensional fundamental and dual representations by means of the algebraic Bethe ansatz we investigate the ground state and low energy excitations of the corresponding mixed superspin chain for deformation parameter $q=\exp(-iγ/2)$. The model has a line of critical points with central charge $c=0$ and continua of conformal dimensions grouped into sectors with $γ$-dependent lower edges for $0\leγ
description: 32 pages, 7 figures included; Nucl. Phys. B [FS] (2011) in press
Detection of a weak surface magnetic field on Sirius A: are all tepid stars magnetic ?
Creators: name: Petit, P.
name: Lignières, F.
name: Aurière, M.
name: Wade, G. A.
name: Alina, D.
name: Ballot, J.
name: Böhm, T.
name: Jouve, L.
name: Oza, A.
name: Paletou, F.
name: Théado, S.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: We aim at a highly sensitive search for weak magnetic fields in main sequence stars of intermediate mass, by scanning classes of stars with no previously reported magnetic members. After detecting a weak magnetic field on the normal, rapidly rotating A-type star Vega, we concentrate here on the bright star Sirius A, taken as a prototypical, chemically peculiar, moderately rotating Am star. We employed the NARVAL and ESPaDOnS high-resolution spectropolarimeters to collect 442 circularly polarized spectra, complemented by 60 linearly polarized spectra. Using a list of about 1,100 photospheric spectral lines, we computed a cross correlation line profile from every spectrum, leading to a signal-to-noise ratio of up to 30,000 in the polarized profile. We report the repeated detection of circularly polarized, highly asymmetric signatures in the line profiles, interpreted as Zeeman signatures of a large-scale photospheric magnetic field, with a line-of-sight component equal to $0.2 \pm 0.1$ G. This is the first polarimetric detection of a surface magnetic field on an Am star. Using rough estimates of the physical properties of the upper layers of Sirius A, we suggest that a dynamo operating in the shallow convective envelope cannot account for the field strength reported here. Together with the magnetic field of Vega, this result confirms that a new class of magnetic objects exists among non Ap/Bp intermediate-mass stars, and it may indicate that a significant fraction of tepid stars are magnetic.
description: Accepted by Astronomy and Astrophysics
title: Moulage d'un haut-relief de l'attique de l'arc de Constantin : congiarium
Creators: name: Pierre Moyat
name: Galinand, Cyrille
name: Université Paris1 Panthéon-Sorbonne
Publisher: name: Archeovision
Year: 2022

description: Bas-relief sur deux niveaux : en haut  sur fond de colonnade  Constantin assis  entouré de quatre personnages  distribue de l'argent à cinq personnages en bas  dont un enfant.
Testing feasibility of scalar-tensor gravity by scale dependent mass and coupling to matter
Creators: name: Mota, D. F.
name: Salzano, V.
name: Capozziello, S.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We investigate whether there are any cosmological evidences for a scalar field with a mass and coupling to matter which change accordingly to the properties of the astrophysical system it "lives in", without directly focusing on the underlying mechanism that drives the scalar field scale-dependent properties. We assume a Yukawa type of coupling between the field and matter and also that the scalar field mass grows with density, in order to overcome all gravity constraints within the solar system. We analyse three different gravitational systems assumed as "cosmological indicators": supernovae type Ia, low surface brightness spiral galaxies and clusters of galaxies. Results show that: a) a quite good fit to the rotation curves of low surface brightness galaxies only using visible stellar and gas mass components is obtained; b) a scalar field can fairly well reproduce the matter profile in clusters of galaxies, estimated by X-ray observations and without the need of any additional dark matter; c) there is an intrinsic difficulty in extracting information about the possibility of a scale-dependent massive scalar field (or more generally about a varying gravitational constant) from supernovae type Ia.
description: 30 pages, 15 figures, to appear in Phys. Rev. D
Efficient Switching of RAFT to Hydroxyl Capped Polymers as a Versatile Scaffold for Block Copolymer Synthesis
Creators: name: Schmid, Christina Maria
Publisher: name: Karlsruhe
Year: 2012
Subjects: Blockcopolymere
RAFT Polymerisation
Endgruppenumwandlung
Ring-öffnende Polymerization
LCCC
2D LC
SEC/ESI-MS

description: The RAFT polymerization is a versatile technique to synthesize polymers with narrow dispersity and high chain-end functionality. To enable a switch from RAFT to other polymerization protocols, the RAFT polymers were transformed via a novel end-group conversion into OH functional polymers. The procedure was employed to synthesize a variety of sulfur-free (multi-) block (star) copolymers. The complex polymers were analyzed via LCCC-SEC, SEC/ESI-MS, and SEC/FT-IR.
Aufgaben und Handhaben der Regionalplanung in Palästina
Creators: name: Alhelsi, Reham
Publisher: name: Karlsruhe
Year: 2012
Subjects: Palästina
Regionalplanung
Thematik
Methodik

description: Die Regionalplanung in Palästina wird mit Blick auf ihre Thematik (Kapitel 2.1, Kapi-tel 6) und Methodik (Kapitel 2.2 sowie Kapitel 3 bis 5) behandelt. Thematisch ent-sprechen Regionen Verbundgebilden aus Naturhaushalt und gesellschaftlichem Stoffwechsel. Methodisch folgt Regionalplanung dem Dreischritt Gewinnen von Aufschlüssen, Anstellen von Überlegungen und Verfertigen von Anleitungen. Dabei bilden Veranstaltungen, Einrichtungen, Anlagen und Standorte die "Pack-Enden" der zu den angestrebten Auswirkungen führenden Einwirkungen.
Electron microscopy study of pure and Sr-substituted LaCoO3
Creators: name: Dieterle, Levin
Publisher: name: Karlsruhe
Year: 2012
Subjects: perovskite
microstructure
SOFC
cathode
transmission electron microscopy

description: Two related perovskite material systems were investigated using transmission electron microscopy. La0.6Sr0.4CoO3-d was studied with emphasis on phase stability and its suitability as cathode material for solid oxide fuel cells. The high efficiency of the investigated cells is attributed to an optimized microstructure and the formation of Co3O4 precipitates during fabrication. Furthermore, the microstructure and its effect on the magnetic properties of epitaxial strained LaCoO3 were studied.
Numerical Methods for the Chemical Master Equation
Creators: name: Udrescu, Tudor
Publisher: name: Karlsruhe
Year: 2012
Subjects: chemical master equation
wavelet compression
adaptive Galerkin approximation
stochastic reaction kinetics

description: The dynamics of biochemical networks can be described by a Markov jump process on a high-dimensional state space, with the corresponding probability distribution being the solution of the Chemical Master Equation (CME). In this thesis, adaptive wavelet methods for the time-dependent and stationary CME, as well as for the approximation of committor probabilities are devised. The methods are illustrated on multi-dimensional models with metastable solutions and large state spaces.
Verformungs- und Schädigungsverhalten der verbundstranggepressten, federstahldrahtverstärkten Aluminiumlegierung EN AW-6082
Creators: name: Merzkirch, Matthias
Publisher: name: Karlsruhe
Year: 2012

description: The aim of this work is the understanding of the deformation and damage behaviour of composite extruded unidirectionally spring steel wire reinforced EN AW-6082 under quasistatic and cyclic loadings.
The acoustic emission analysis is used as an in-situ detection system to get more insight in the different deformation and damage mechanisms.
Models which were applied, modified and developed as well as the simulation of the composite behavior allow to predict the composite behaviour.
Renormalization flow in extreme value statistics
Creators: name: Bertin, Eric
name: Györgyi, Géza
Publisher: name: arXiv
Year: 2010
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: The renormalization group transformation for extreme value statistics of independent, identically distributed variables, recently introduced to describe finite size effects, is presented here in terms of a partial differential equation (PDE). This yields a flow in function space and gives rise to the known family of Fisher-Tippett limit distributions as fixed points, together with the universal eigenfunctions around them. The PDE turns out to handle correctly distributions even having discontinuities. Remarkably, the PDE admits exact solutions in terms of eigenfunctions even farther from the fixed points. In particular, such are unstable manifolds emanating from and returning to the Gumbel fixed point, when the running eigenvalue and the perturbation strength parameter obey a pair of coupled ordinary differential equations. Exact renormalization trajectories corresponding to linear combinations of eigenfunctions can also be given, and it is shown that such are all solutions of the PDE. Explicit formulas for some invariant manifolds in the Fréchet and Weibull cases are also presented. Finally, the similarity between renormalization flows for extreme value statistics and the central limit problem is stressed, whence follows the equivalence of the formulas for Weibull distributions and the moment generating function of symmetric Lévy stable distributions.
description: 21 pages, 9 figures. Several typos and an upload error corrected. Accepted for publication in JSTAT
A Patchy Cloud Model for the L to T Dwarf Transition
Creators: name: Marley, Mark S.
name: Saumon, Didier
name: Goldblatt, Colin
Publisher: name: arXiv
Year: 2010
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: FOS: Physical sciences

description: One of the mechanisms suggested for the L to T dwarf spectral type transition is the appearance of relatively cloud-free regions across the disk of brown dwarfs as they cool. The existence of partly cloudy regions has been supported by evidence for variability in dwarfs in the late L to early T spectral range, but no self-consistent atmosphere models of such partly cloudy objects have yet been constructed. Here we present a new approach for consistently modeling partly cloudy brown dwarfs and giant planets. We find that even a small fraction of cloud holes dramatically alter the atmospheric thermal profile, spectra, and photometric colors of a given object. With decreasing cloudiness objects briskly become bluer in J - K and brighten in J band, as is observed at the L/T transition. Model spectra of partly cloudy objects are similar to our models with globally homogenous, but thinner, clouds. Hence spectra alone may not be sufficient to distinguish partial cloudiness although variability and polarization measurements are potential observational signatures. Finally we note that partial cloud cover may be an alternative explanation for the blue L dwarfs.
description: 14 pages, 3 figures, Ap. J. Let. in press
Spectral properties of 438 GRBs detected by Fermi/GBM
Creators: name: Nava, L.
name: Ghirlanda, G.
name: Ghisellini, G.
name: Celotti, A.
Publisher: name: arXiv
Year: 2010
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: We present the results of the spectral analysis of the public data of 438 Gamma Ray Bursts (GRBs) detected by the Fermi Gamma ray Burst Monitor (GBM) up to March 2010. For 432 bursts we could fit the time integrated spectrum. In 318 cases we can reliably constrain the peak energy Epeak of their νF_νspectrum by analyzing their time integrated spectrum between 8 keV and 35 MeV. 80% of these spectra are fitted by a power law with an exponential cutoff, and the remaining with the Band function. Among these 318 GRBs, 274 and 44 belong to the long and short GRB class, respectively. Long GRBs have a typical peak energy Epeak=160 keV and low energy spectral index alpha=-0.92. Short GRBs have harder peak energy (Epeak=490 keV) and harder low energy spectral index (alpha=-0.50) than long bursts. For each Fermi GRB we analyzed also the spectrum corresponding to the peak flux of the burst. On average, the peak spectrum has harder low energy spectral index but similar Epeak than the corresponding time-integrated spectrum for the same burst. The spectral parameters derived in our analysis of Fermi/GBM bursts are globally consistent with those reported in the GRB Cicular Network (GCN) archive after December 2008, while we found systematic differences, concerning the low energy power law index, for earlier bursts.
description: Accepted for publication in A&A
JCMT HARP CO 3-2 Observations of Molecular Outflows in W5
Creators: name: Ginsburg, Adam
name: Bally, John
name: Williams, Jonathan
Publisher: name: arXiv
Year: 2011
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: New JCMT HARP CO 3-2 observations of the W5 star forming complex are presented, totaling an area of 12000 arcmin^2 with sensitivity better than 0.1 K per 0.4 km/s channel. We discovered 55 CO outflow candidates, of which 40 are associated with W5 and 15 are more distant than the Perseus arm. Most of the outflows are located on the periphery of the W5 HII region. However, two outflow clusters are > 5 pc from the ionization fronts, indicating that their driving protostars formed without directly being triggered by the O-stars in W5. We compare the derived outflow properties to those in Perseus and find that the total W5 outflow mass is surprisingly low given the cloud masses. The outflow mass deficiency in the more massive W5 cloud (M(H2) ~ 5 \times 10^4 Msun) can be explained if ionizing radiation dissociates molecules as they break out of their host cloud cores. Although CO J=3-2 is a good outflow tracer, it is likely to be a poor mass tracer because of sub-thermal line excitation and high opacity, which may also contribute to the outflow mass discrepancy. It is unlikely that outflows could provide the observed turbulent energy in the W5 molecular clouds even accounting for undetected outflow material. Many cometary globules have been observed with velocity gradients from head to tail, displaying strong interaction with the W5 HII region and exhibiting signs of triggered or revealed star formation in their heads. Because it is observed face-on, W5 is an excellent region to study feedback effects, both positive and negative, of massive stars on star formation.
description: 33 pages, 28 figures, 5 tables, MNRAS 2-column format. An additional 52 figures are available in the online version: http://casa.colorado.edu/~ginsbura/papers/w5outflows_online_draft0628.pdf. Accepted to MNRAS
The Semi-Classical Spectrum of Solitons and Giant Magnons
Creators: name: Hollowood, Timothy J.
name: Miramontes, J. Luis
Publisher: name: arXiv
Year: 2011
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: In this note, we summarize recent progress in constructing and then semi-classically quantizing solitons, or non-abelian Q-balls, in the symmetric space sine-Gordon theories. We then consider the images of these solitons in the related constrained sigma model, which are the dyonic giant magnons on the string theory world-sheet. Focussing on the case of the symmetric space S^5, we perform a semi-classical quantization of the solitons and magnons and show that both lead to Chern-Simons quantum mechanics on the internal moduli space which is a real Grassmannian SO(4)/SO(2)xSO(2) but---importantly---with a different coupling constant. Quantizing this system shows that both the Q-balls and magnons come in a tower of states transforming in symmetric representations of the SO(4) symmetry group; however, the former come in a finite tower whereas the latter come in the well-known infinite tower of dyonic giant magnons.
description: 25 pages, additional references and small typos corrected. Final journal version
Computer-assisted enclosures for fourth order elliptic equations
Creators: name: Fazekas, Borbála
Publisher: name: Karlsruhe
Year: 2012
Subjects: Fourth order semilinear elliptic boundary value problems
computer-assisted proofs

description: We describe a computer-assisted method for proving existence and multiplicity of solutions of fourth order nonlinear elliptic boundary value problems: we compute a good
numerical approximation of a solution and certain defect bounds with computer-assistance, and then obtain a rigorous proof of the existence of an exact solution close to the numerical one by a fixed-point argument.
Amarna (satellite imagery)
Creators: name: Sparavigna, Amelia Carolina
Publisher: name: Zenodo
Year: 2011
Subjects: Amarna
Egypt
Satellite imagery

description: This is a presentation of the Google Site https://sites.google.com/site/amarnasatelliteimagery/ In this site we proposed the use of images, obtained from those of Google Maps after some processing to enhance their details, to survey the archaeological site of Amarna, Egypt. The date Sep 9, 2011, is that of the last activity on the site.
More on the Nambu-Poisson M5-brane Theory: Scaling limit, background independence and an all order solution to the Seiberg-Witten map
Creators: name: Chen, Chien-Ho
name: Furuuchi, Kazuyuki
name: Ho, Pei-Ming
name: Takimi, Tomohisa
Publisher: name: arXiv
Year: 2010
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We continue our investigation on the Nambu-Poisson description of M5-brane in a large constant C-field background (NP M5-brane theory) constructed in Refs.[1, 2]. In this paper, the low energy limit where the NP M5-brane theory is applicable is clarified. The background independence of the NP M5-brane theory is made manifest using the variables in the BLG model of multiple M2-branes. An all order solution to the Seiberg-Witten map is also constructed.
description: expanded explanations, minor corrections and typos corrected
Low Power Reversible Parallel Binary Adder/Subtractor
Creators: name: Rangaraju, H G
name: Venugopal, U.
name: Muralidhara, K N
name: Raja, K B
Publisher: name: arXiv
Year: 2010
Subjects: subject: Performance (cs.PF)
subject: FOS: Computer and information sciences

description: In recent years, Reversible Logic is becoming more and more prominent technology having its applications in Low Power CMOS, Quantum Computing, Nanotechnology, and Optical Computing. Reversibility plays an important role when energy efficient computations are considered. In this paper, Reversible eight-bit Parallel Binary Adder/Subtractor with Design I, Design II and Design III are proposed. In all the three design approaches, the full Adder and Subtractors are realized in a single unit as compared to only full Subtractor in the existing design. The performance analysis is verified using number reversible gates, Garbage input/outputs and Quantum Cost. It is observed that Reversible eight-bit Parallel Binary Adder/Subtractor with Design III is efficient compared to Design I, Design II and existing design.
description: 12 pages,VLSICS Journal
Entwicklung und Validierung eines numerischen Simulationsmodells zur Beschreibung der induktiven Ein- und Zweifrequenzrandschichthärtung am Beispiel von vergütetem 42CrMo4
Creators: name: Schwenk, Maximilian
Publisher: name: Karlsruhe
Year: 2012
Subjects: FEM
Induktionshärtung
Modellierung
Bauteileigenschaften

description: Ein Prozessmodell zur Abbildung der induktiven Ein- und Zweifrequenzhärtung unter Berücksichtigung prozessspezifischer Aspekte wurde entwickelt. Am Beispiel des Werkstoffes 42CrMo4 im vergüteten Zustand kann gezeigt werden, dass Bauteilcharakteristika wie Eigenspannungs- und Härtetiefenverläufe gut wiedergegeben werden. Basierend auf der Modellierung kann gezeigt werden, dass die Abweichung der quantitativen Wiedergabe der Eigenspannungen auf der Unterschätzung der Umwandlungsplastizität beruht.
Study of a0(980)--f0(980) mixing
Creators: name: The BESIII Collaboration
Publisher: name: arXiv
Year: 2010
Subjects: subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: Using samples of 2.25*10^8 J/psi events and 1.06*10^8 psi' events collected with the BES III detector, we study the f0(980) to a0(980) and a0(980) to f0(980) transitions in the processes J/psi --> phi f0(980) --> phi a0(980) and chi_c1 --> pi^0 a0(980) --> pi^0 f0(980), respectively. Evidence for f0(980) --> a0(980) is found with a significance of 3.4 sigma, while in the case of a0(980) --> f0(980) transition, the significance is 1.9 sigma. Measurements and upper limits of both branching ratios and mixing intensities are determined.
description: 19 pages, 4 figures, published in Phys. Rev. D
Mitigating impacts of temperature-oxygen squeeze in a mesotrophic-eutrophic lake : Wood Lake, BC, Canada
Creators: name: Young, Christopher J.
Publisher: name: University of British Columbia
Year: 2017

description: Warm surface waters and hypoxic hypolimnion during summer stratification in eutrophic lakes, known as a temperature-oxygen squeeze, can limit available habitat for aquatic species. This study of Wood Lake, a calcareous eutrophic lake situated in the semi-arid Okanagan Valley of BC, Canada, was motivated by a decline in kokanee return spawners following a severe temperature-oxygen squeeze in 2011. Field data collected in 2015/2016, combined with DYRESM, a one-dimensional physical simulation model, was employed to investigate the factors influencing the thermal aspect of the temperature-oxygen squeeze. A relatively early and weak spring freshet in 2015 was followed by severely restricted inflows due to upstream diversions and coincident with relatively warm regional air temperatures from May through July. These factors triggered a marling event in Wood Lake and also resulted in the early onset of high epilimnetic temperatures and hypoxic hypolimnion (>20°C and <2 mg/L by mid June 2015). However, a cooler August and September, compared to 2011, alleviated the temperature-oxygen squeeze in 2015 by allowing the surface layer to cool. Simulations of the lake’s thermal response to meteorological perturbations on weekly and seasonal time scales consistently showed the thermal component of the Wood Lake temperature-oxygen squeeze is sensitive to the degree and timing of changes in air temperature; elevated August and September air temperatures, combined with high retention time due to limited inflow, restricts Kokanee fish habitat by increasing surface layer temperature during September when hypolimnetic oxygen is most diminished. While the marling event reduced water clarity, it did not significantly influence the lake’s thermal structure. DYRESM was employed to evaluate the effect of several proposed management scenarios involving the alteration of inflows and outflows with the goal of reducing September surface layer temperature of Wood Lake. It was shown that returning Wood Lake’s volumetric fluxes to pre-industrial rates by supplementing inflow from one of two adjacent lakes has the potential to reduce the thermal component of the seasonal temperature-oxygen squeeze.
title: Moulage d'un haut-relief de l'attique de l'arc de Constantin : arrivée à Rome
Creators: name: Pierre Moyat
name: Galinand, Cyrille
name: Université Paris1 Panthéon-Sorbonne
Publisher: name: Archeovision
Year: 2022

description: Constantin entouré de deux femmes derrière lui et deux soldats armés à ses côtés. Un personnage ailé étend une guirlande de lauriers au-dessus de sa tête. En fond  temple et arc avec guirlande.
title: Moulage d'un haut-relief de l'attique de l'arc de Constantin : lustratio
Creators: name: Pierre Moyat
name: Galinand, Cyrille
name: Université Paris1 Panthéon-Sorbonne
Publisher: name: Archeovision
Year: 2022

description: L'empereur au centre  entouré de jeunes gens apportant les animaux pour le sacrifice : porc  mouton  taureau. Derrière  armée : une dizaine de personnages avec emblèmes de légions.
European Trends in the Use of ICT in Delivering Counselling Services
Creators: name: Mihai, Iacob
Publisher: name: Editura Universitara
Year: 2012
Subjects: subject: 0 Social sciences
subject: 37 Education
subject: 371 Instructional design
subject: 004:37 Elearning

description: Career counselling services have benefited considerably from the advent of new technologies, but it seems that for the better part of the last two decades introducing ICT (information and communication technologies) to counselling was more of a happenstance process rather than a coordinated effort. Despite diverging practices, several trends have emerged at European level in the use of ICT in delivering counselling services. Based on a Europe wide survey we point out common practices and phenomena related to this area.
Dimming of the 17th Century Sun
Creators: name: Foukal, Peter
name: Ortiz, Ada
name: Schnerr, Roald
Publisher: name: arXiv
Year: 2011
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: Reconstructions of total solar irradiance (TSI) rely mainly on linear relations between TSI variation and indices of facular area. When these are extrapolated to the prolonged 15th - 17th century Spörer and Maunder solar activity minima, the estimated solar dimming is insufficient to explain the mid- millennial climate cooling of the Little Ice Age. We draw attention here to evidence that the relation departs from linearity at the lowest activity levels. Imaging photometry and radiometry indicate an increased TSI contribution per unit area from small network faculae by a factor of 2-4 compared to larger faculae in and around active regions. Even partial removal of this more TSI - effective network at prolonged minima could enable climatically significant solar dimming, yet be consistent with the weakened but persistent 11- yr cycle observed in Be 10 during the Maunder Minimum. The mechanism we suggest would not alter previous findings that increased solar radiative forcing is insufficient to account for 20th century global warming.
description: ApJL. (Accepted) 10 pages, 2 figures
Bargaining through social networks : a conceptual approach and empirical application in Jambi, Indonesia
Creators: name: Lenhardt, Amanda
Publisher: name: University of British Columbia
Year: 2017

description: Local agricultural markets are deeply socially embedded and strongly governed by local social norms and structures and these affect the degree of bargaining power that a farmer holds when negotiating the sale of their goods. Standard economic measures of bargaining power typically do not capture the effect of social factors on bargaining power and therefore offer a limited understanding of farmers’ opportunities and constraints in the face of imperfect market competition and in the absence of formal contracts. This thesis establishes links between social network analysis concepts common to sociology and well-known economic concepts in order to demonstrate that social network measures can be used to observe the effect of social factors on farmers’ bargaining power. These concepts are used to investigate whether the structure of a market and a farmer's position within it affect the level of competition in the market and whether the strength of the relationships a farmer maintains with their traders affect their bargaining power and, by extension, the prices they receive for their goods. A conceptual model is presented to show the links between the social network concepts of network centralization, degree centrality and strength of ties to the economic concepts of competition, outside options, and informal contract enforcement. The model is tested by an empirical analysis of farmers’ bargaining power in 3 rubber markets in Jambi, Indonesia. The findings show that social network analysis can be used to respond to some of the challenges of conceptualising and measuring social factors in economics. Network centralization is used to show that unequal access to buying options among sellers can lead to monopsonistic competition, allowing buyers to capture greater surplus. Degree centrality shows that an actor whose position in the network is highly central has greater outside options and that these can be leveraged to bargain a higher price. Using a measure of strength of ties, it is also shown that the share of the bargaining surplus going to the farmer is increased when there is trust between them and the buyer.
Higher order moment models of dense stellar systems: Applications to the modeling of the stellar velocity distribution function
Creators: name: Schneider, Justus
name: Amaro-Seoane, Pau
name: Spurzem, Rainer
Publisher: name: arXiv
Year: 2010
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: Dense stellar systems such as globular clusters, galactic nuclei and nuclear star clusters are ideal loci to study stellar dynamics due to the very high densities reached, usually a million times higher than in the solar neighborhood; they are unique laboratories to study processes related to relaxation. There are a number of different techniques to model the global evolution of such a system. In statistical models we assume that relaxation is the result of a large number of two-body gravitational encounters with a net local effect. We present two moment models that are based on the collisional Boltzmann equation. By taking moments of the Boltzmann equation one obtains an infinite set of differential moment equations where the equation for the moment of order $n$ contains moments of order $n+1$. In our models we assume spherical symmetry but we do not require dynamical equilibrium. We truncate the infinite set of moment equations at order $n=4$ for the first model and at order $n=5$ for the second model. The collisional terms on the right-hand side of the moment equations account for two-body relaxation and are computed by means of the Rosenbluth potentials. We complete the set of moment equations with closure relations which constrain the degree of anisotropy of our model by expressing moments of order $n+1$ by moments of order $n$. The accuracy of this approach relies on the number of moments included from the infinite series. Since both models include fourth order moments we can study mechanisms in more detail that increase or decrease the number of high velocity stars. The resulting model allows us to derive a velocity distribution function, with unprecedented accuracy, compared to previous moment models.
description: Accepted for publication by MNRAS after minor corrections
title: Moulage d'un haut-relief de l'attique de l'arc de Constantin
Creators: name: Pierre Moyat
name: Galinand, Cyrille
name: Université Paris1 Panthéon-Sorbonne
Publisher: name: Archeovision
Year: 2022

description: Huit moulages reproduisant l'arc de Constantin : reddition d'un chef barbare ; présentation d'un chef barbare à l'empereur ; adlocutio ; présentation de prisonniers à l'empereur ; congiarium ; lustratio ; arrivée à Rome ; départ de Rome.
The band-gap structures and recovery rules of generalized n-component Fibonacci piezoelectric superlattices
Creators: name: Liu, Da
name: Zhang, Weiyi
Publisher: name: arXiv
Year: 2010
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences
subject: 06B25, 37C55

description: The spectral evolution from periodic structure to random structure has always been an interesting topic in solid state physics, the generalized n-component Fibonacci sequences (n- CF) provide a convenient tool to investigate such process since its randomness can be controlled via the parameter n. In this letter, the band-gap structures of n-CF piezoelectric superlattices have been calculated using the transfer-matrix-method, the self-similarity behavior and recovery rule have been systematically analyzed. Consistent with the rigorous mathematical proof by Hu et al.[A. Hu et al. Phys. Rev. B. 48, 829 (1993)], we find that the n-CF sequences with 2 \leq n \leq 4 are identified as quasiperiodic. The imaginary wave numbers are characterized by the self-similar spectrum, their major peaks can all be properly indexed. In addition, we find that the n = 5 sequence belongs to a critical case which lies at the border between quasiperiodic to aperiodic structures. The frequency range of self-similarity pattern approaches to zero and a unique indexing of imaginary wave numbers becomes impossible. Our study offers the information on the critical 5-CF superlattice which was not available before. The classification of band-gap structures and the scaling laws around fixed points are also given.
title: Moulage d'un haut-relief de l'attique de l'arc de Constantin : départ de Rome
Creators: name: Pierre Moyat
name: Galinand, Cyrille
name: Université Paris1 Panthéon-Sorbonne
Publisher: name: Archeovision
Year: 2022

description: Constantin à gauche suivi de deux personnages  soldats à droite avec cheval  personnage féminin couché et accoudé sur une roue qui tend la main à Constantin. Arc et bannières en fond.
Fluxon readout for superconducting flux qubits
Creators: name: Fedorov, Kirill
Publisher: name: Karlsruhe
Year: 2013
Subjects: Josephson effect
fluxons
qubits

description: This thesis presents experimental studies on developing of a novel fluxon readout for superconducting flux qubits. It is based on a scheme for detecting the microwave radiation of an oscillating fluxon in an annular Josephson junction (AJJ). The readout was implemented for a superconducting flux qubit coupled as a current dipole to the AJJ. An energy spectrum of the flux qubit was measured via detecting a frequency shift of the fluxon oscillations versus a flux bias through the qubit.
The effects of regulative instruments on stakeholders in the German pharmaceutical market
Creators: name: Haustein, Robert
Publisher: name: Karlsruhe
Year: 2013
Subjects: Regulative Instruments
Reference Pricing
Rebate Contracts

description: The German Statutory Health Insurance (SHI) system provides medical services for the majority of the German population. Prescription drugs are a large cost driver of the system. Regulative instruments were introduced to reduce the drug expenditures. The aim of this thesis is to evaluate the effects of the implementation of reference pricing, co-payment exemption and rebate contracts on key parties of the SHI prescription drug market between 2004 and 2007.
New Constraints on Dark Matter from CMS and ATLAS Data
Creators: name: Akula, Sujeet
name: Feldman, Daniel
name: Liu, Zuowei
name: Nath, Pran
name: Peim, Gregory
Publisher: name: arXiv
Year: 2011
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: Constraints on dark matter from the first CMS and ATLAS SUSY searches are investigated. It is shown that within the minimal supergravity model, the early search for supersymmetry at the LHC has depleted a large portion of the signature space in dark matter direct detection experiments. In particular, the prospects for detecting signals of dark matter in the XENON and CDMS experiments are significantly affected in the low neutralino mass region. Here the relic density of dark matter typically arises from slepton coannihilations in the early universe. In contrast, it is found that the CMS and ATLAS analyses leave untouched the Higgs pole and the Hyperbolic Branch/Focus Point regions, which are now being probed by the most recent XENON results. Analysis is also done for supergravity models with non-universal soft breaking where one finds that a part of the dark matter signature space depleted by the CMS and ATLAS cuts in the minimal SUGRA case is repopulated. Thus, observation of dark matter in the LHC depleted region of minimal supergravity may indicate non-universalities in soft breaking.
description: 18 pages, 5 figures, text expanded and updated
The Theory and Application of Optical Diagnostic Techniques in the Combustion Chamber of a Diesel Engine
Creators: name: Busch, Stephen
Publisher: name: Karlsruhe
Year: 2013
Subjects: Verbrennungsmotoren
Diesel
Optische Verbrennungsdiagnostik

description: Die Entwicklung moderner Dieselbrennverfahren hinsichtlich minimierter Abgasemissionen und der gleichzeitigen Beibehaltung guter Wirkungsgrade erfordert weitere Kenntnisse über die im Brennraum ablaufenden Prozesse. Gegenstand dieser Arbeit ist die Umsetzung ausgewählter optischer Messtechniken in einem neuen, optisch zugänglichen Heavy Duty Dieselmotor und die Analyse der am Prüfstand gewonnenen Ergebnisse vor dem Hintergrund des heutigen Wissenstands.
Complete Primitives for Information-Theoretically Secure Two-Party Computation
Creators: name: Kraschewski, Daniel
Publisher: name: Karlsruhe
Year: 2013

description: This thesis contributes two results to the research area of secure two-party computation. The first result is a full combinatorial characterization of all cryptogates that are powerful enough to be used for implementation of arbitrary secure computations. The second result shows that any secure two-party computation can be based on a single reusable tamper-proof hardware token, although the receiver does not trust the token issuer.
title: Moulage du haut-relief du prophète Jérémie, du cloître de l'abbaye de Moissac
Creators: name: Pierre Moyat
name: Galinand, Cyrille
name: Université Paris1 Panthéon-Sorbonne
Publisher: name: Archeovision
Year: 2022

description: Moulage du buste du prophète Jérémie  tête légèrement inclinée  tient un phylactère dans sa main gauche. - Note : Créateur  Atelier de l'École royale des Beaux-Arts. Estampille  "ECOLE ROYALE DES BEAUX-ARTS" Dépoussiérage en 2009-2010
title: Moulage du bas-relief de l'Assomption, de la cathédrale Notre-Dame de Paris
Creators: name: Pierre Moyat
name: Galinand, Cyrille
name: Université Paris1 Panthéon-Sorbonne
Publisher: name: Archeovision
Year: 2022

description: Bas-relief du soubassement de l'abside : La Vierge enlevée au Ciel. Vierge drapée  dans une mandorle nuageuse. Manque le visage et la main gauche. Tirage partiel d'un original en pierre. - Note : Dépoussiérage en 2009-2010.