cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
J. Schlobach, S. Eichhorn-Jung (Hg.), Friedrich Melchior Grimm. Briefe an Johann Christoph Gottsched. Im Anhang: Vier Briefe an Luise Gottsched, 1998
Creators: name: Genton, F.
Publisher: name: Francia
Year: 2019

description: Francia, Bd. 28 Nr. 2 (2001)
Structural and electronic properties of superconducting Heusler alloy Ni$_{2}$Nb$_{1+x}$Sn$_{1-x}$: \textit{Ab initio} approach
Creators: name: Pal, Soumyadipta
Publisher: name: arXiv
Year: 2012
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Using \textit{ab initio} calculation, we investigate systematically the structural and electronic properties of Ni$_{2}$Nb$_{1+x}$Sn$_{1-x}$ ($x$ = 0, 0.25, 0.50). Here, projector augmented wave approach (PAW) implemented in the Vienna \textit{ab initio} simulation package (VASP) within generalized gradient approximation (GGA) for the exchange-correlation functional has been used. In this article, it is reported that though Ni$_{2}$NbSn and Ni$_{2}$Nb$_{1.25}$Sn$_{0.75}$ have no structural transformation, Ni$_{2}$Nb$_{1.5}$Sn$_{0.5}$ can transform to tetragonal structure from cubic L2$_{1}$ phase. The cubic lattice parameter decreases with Nb doping at Sn sites in off-stoichiometric alloys. The alloys are in paramagnetic phase in all the structures. The hybridization between Ni and Nb 3d states triggers the tetragonal distortion. Due to Nb doping in cubic L2$_{1}$ phase, there is a significant change in total density of states (DOSs) at Fermi energy (E$_{F}$) (N(E$_{F}$)). N(E$_{F}$) increases with increasing Nb doping. But, N(E$_{F}$) decreases during structural transformation of Ni$_{2}$Nb$_{1.5}$Sn$_{0.5}$. The superconducting critical temperature (T$_{C}$) also changes with Nb doping in cubic phase and tetragonal distortion because T$_{C}$ very much depends on N(E$_{F}$).
description: Due to substantial overlap with concepts and discussions with other co-workers on other systems, the paper has been withdrawn
The Viscous Evolution of White Dwarf Merger Remnants
Creators: name: Schwab, Josiah
name: Shen, Ken J.
name: Quataert, Eliot
name: Dan, Marius
name: Rosswog, Stephan
Publisher: name: arXiv
Year: 2012
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: The merger of two white dwarfs (WDs) creates a differentially rotating remnant which is unstable to magnetohydrodynamic instabilities. These instabilities can lead to viscous evolution on a time-scale short compared to the thermal evolution of the remnant. We present multi-dimensional hydrodynamic simulations of the evolution of WD merger remnants under the action of an $α$-viscosity. We initialize our calculations using the output of eight WD merger simulations from Dan et al. (2011), which span a range of mass ratios and total masses. We generically find that the merger remnants evolve towards spherical states on time-scales of hours, even though a significant fraction of the mass is initially rotationally supported. The viscous evolution unbinds only a very small amount of mass $(< 10^{-5} M_\odot)$. Viscous heating causes some of the systems we study with He WD secondaries to reach conditions of nearly dynamical burning. It is thus possible that the post-merger viscous phase triggers detonation of the He envelope in some WD mergers, potentially producing a Type Ia supernova via a double detonation scenario. Our calculations provide the proper initial conditions for studying the long-term thermal evolution of WD merger remnants. This is important for understanding WD mergers as progenitors of Type Ia supernovae, neutron stars, R Coronae Borealis stars and other phenomena.
description: 15 pages, 14 figures, published in MNRAS
The dilogarithmic central extension of the Ptolemy-Thompson group via the Kashaev quantization
Creators: name: Kim, Hyun Kyu
Publisher: name: arXiv
Year: 2012
Subjects: subject: Group Theory (math.GR)
subject: Geometric Topology (math.GT)
subject: Quantum Algebra (math.QA)
subject: Representation Theory (math.RT)
subject: FOS: Mathematics
subject: 57M07, 20F38

description: Quantization of universal Teichmüller space provides projective representations of the Ptolemy-Thompson group, which is isomorphic to the Thompson group $T$. This yields certain central extensions of $T$ by $\mathbb{Z}$, called dilogarithmic central extensions. We compute a presentation of the dilogarithmic central extension $\hat{T}^{Kash}$ of $T$ resulting from the Kashaev quantization, and show that it corresponds to $6$ times the Euler class in $H^2(T;\mathbb{Z})$. Meanwhile, the braided Ptolemy-Thompson groups $T^*$, $T^\sharp$ of Funar-Kapoudjian are extensions of $T$ by the infinite braid group $B_\infty$, and by abelianizing the kernel $B_\infty$ one constructs central extensions $T^*_{ab}$, $T^\sharp_{ab}$ of $T$ by $\mathbb{Z}$, which are of topological nature. We show $\hat{T}^{Kash}\cong T^\sharp_{ab}$. Our result is analogous to that of Funar and Sergiescu, who computed a presentation of another dilogarithmic central extension $\hat{T}^{CF}$ of $T$ resulting from the Chekhov-Fock(-Goncharov) quantization and thus showed that it corresponds to $12$ times the Euler class and that $\hat{T}^{CF} \cong T^*_{ab}$. In addition, we suggest a natural relationship between the two quantizations in the level of projective representations.
description: 43 pages, 15 figures. v2: substantially revised from the first version, and the author affiliation changed. // v3: Groups M and T are shown to be anti-isomorphic (new Prop.2.32), which makes the whole construction more natural. And some minor changes // v4: reflects all changes made for journal publication (to appear in Adv. Math.)
Is Radiative Electroweak Symmetry Breaking Consistent with a 125 GeV Higgs Mass?
Creators: name: Steele, T. G.
name: Wang, Zhi-Wei
Publisher: name: arXiv
Year: 2012
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: The mechanism of radiative electroweak symmetry breaking occurs through loop corrections, and unlike conventional symmetry breaking where the Higgs mass is a parameter, the radiatively-generated Higgs mass is dynamically predicted. Pade approximations and an averaging method are developed to extend the Higgs mass predictions in radiative electroweak symmetry breaking from five- to nine-loop order in the scalar sector of the Standard Model, resulting in an upper bound on the Higgs mass of 141 GeV. The mass predictions are well-described by a geometric series behaviour, converging to an asymptotic Higgs mass of 124 GeV consistent with the recent ATLAS/CMS observations. Similarly, we find that the Higgs self-coupling converges to $λ=0.23$, which is significantly larger than its conventional symmetry breaking counterpart for a 124 GeV Higgs mass. In addition to this significant enhancement of the Higgs self-coupling and $HH\rightarrow HH$ scattering, we find that Higgs decays to gauge bosons are unaltered and the scattering processes $W_{L}^{+}W_{L}^{+}\rightarrow HH$, $Z_{L}Z_{L}\rightarrow HH$ are also enhanced, providing signals to distinguish conventional and radiative electroweak symmetry breaking mechanisms.
description: 5 pages, 3 eps figures included with LaTeX source. v3 contains extended analysis and discussion
Newton-Hooke type symmetry of anisotropic oscillators
Creators: name: Zhang, P. M.
name: Horvathy, P. A.
name: Andrzejewski, K.
name: Gonera, J.
name: Kosinski, P.
Publisher: name: arXiv
Year: 2012
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: The rotation-less Newton--Hooke - type symmetry found recently in the Hill problem and instrumental for explaining the center-of-mass decomposition is generalized to an arbitrary anisotropic oscillator in the plane. Conversely, the latter system is shown, by the orbit method, to be the most general one with such a symmetry. Full Newton-Hooke symmetry is recovered in the isotropic case. Star escape from a Galaxy is studied as application.
description: Updated version with more figures added. 34 pages, 7 figures. Dedicated to the memory of J.-M. Souriau, deceased on March 15 2012, at the age of 90
Bogomolov-Sommese vanishing on log canonical pairs
Creators: name: Graf, Patrick
Publisher: name: arXiv
Year: 2012
Subjects: subject: Algebraic Geometry (math.AG)
subject: FOS: Mathematics

description: Let (X, D) be a projective log canonical pair. We show that for any natural number p, the sheaf (Omega_X^p(log D))^** of reflexive logarithmic p-forms does not contain a Weil divisorial subsheaf whose Kodaira-Iitaka dimension exceeds p. This generalizes a classical theorem of Bogomolov and Sommese. In fact, we prove a more general version of this result which also deals with the orbifoldes géométriques introduced by Campana. The main ingredients to the proof are the extension theorem of Greb-Kebekus-Kovács-Peternell, a new version of the Negativity lemma, the Minimal Model Program, and a residue map for symmetric differentials on dlt pairs. We also give an example showing that the statement cannot be generalized to spaces with Du Bois singularities. As an application, we give a Kodaira-Akizuki-Nakano-type vanishing result for log canonical pairs which holds for reflexive as well as for Kähler differentials.
description: Minor changes. Final version, to appear in Journal reine angew. Math
U. Schlie (Hg.), Albert Speer: »Alles was ich weiß«. Aus unbekannten Geheimdienstprotokollen vom Sommer 1945. Mit einem Bericht »Frauen um Hitler« von K. Brandt, 1999
Creators: name: Löhr, H. C.
Publisher: name: Francia
Year: 2019

description: Francia, Bd. 28 Nr. 3 (2001)
Zur Wiederentdeckung des Fronleichnamsspiels oder ein Plädoyer für die Erforschung des auto sacramental als ,überzeitliche‘ Gattung
Creators: name: Hertrampf, Marina Ortrud M.
Publisher: name: HeLix - Dossiers zur romanischen Literaturwissenschaft
Year: 2019

description: -
description: HeLix - Dossiers zur romanischen Literaturwissenschaft, Bd. 12 (2019): Auto sacramental: Aktuelle Forschungsbeiträge zum Fronleichnamsspiel in Spanien und Hispanoamerika
NumExp: Numerical epsilon expansion of hypergeometric functions
Creators: name: Huang, Zhi-Wei
name: Liu, Jueping
Publisher: name: arXiv
Year: 2012
Subjects: subject: Computational Physics (physics.comp-ph)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Theory (hep-th)
subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: It is demonstrated that the well-regularized hypergeometric functions can be evaluated directly and numerically. The package NumExp is presented for expanding hypergeometric functions and/or other transcendental functions in a small regularization parameter. The hypergeometric function is expressed as a Laurent series in the regularization parameter and the coefficients are evaluated numerically by using the multi-precision finite difference method. This elaborate expansion method works for a wide variety of hypergeometric functions, which are needed in the context of dimensional regularization for loop integrals. The divergent and finite parts can be extracted from the final result easily and simultaneously. In addition, there is almost no restriction on the parameters of hypergeometric functions.
description: fixed minor bugs; to appear in Computer Physics Communications
Robinson, Ch. A.: Ancient history from prehistorie times to the death of Justinian
Creators: name: Jacob-Friesen, Karl Hermann
Publisher: name: Nachrichten aus Niedersachsens Urgeschichte
Year: 2019

description: Rezension zu: Robinson, Ch. A.: Ancient history from prehistorie times to the death of Justinian. New York: The Macmillan Company 1951. 738 S. m. vielen Abb. u. Karten im Text
description: Nachrichten aus Niedersachsens Urgeschichte, Bd. 22 (1953): Nachrichten aus Niedersachsens Urgeschichte
Ein spätmesolithischer(?) Siedlungsplatz bei Twistenbostel, Kr. Bremervörde
Creators: name: Deichmüller, Jürgen
Publisher: name: Nachrichten aus Niedersachsens Urgeschichte
Year: 2019

description: Nachrichten aus Niedersachsens Urgeschichte, Bd. 32 (1963): Nachrichten aus Niedersachsens Urgeschichte
Modes and instabilities in magnetized spherical Couette flow
Creators: name: Figueroa, Aldo
name: Schaeffer, Nathanaël
name: Nataf, Henri-Claude
name: Schmitt, Denys
Publisher: name: arXiv
Year: 2012
Subjects: subject: Geophysics (physics.geo-ph)
subject: Classical Physics (physics.class-ph)
subject: FOS: Physical sciences

description: Several teams have reported peculiar frequency spectra for flows in a spherical shell. To address their origin, we perform numerical simulations of the spherical Couette flow in a dipolar magnetic field, in the configuration of the DTS experiment. The frequency spectra computed from time-series of the induced magnetic field display similar bumpy spectra, where each bump corresponds to a given azimuthal mode number m. The bumps show up at moderate Reynolds number (2 600) if the time-series are long enough (>300 rotations of the inner sphere). We present a new method that permits to retrieve the dominant frequencies for individual mode numbers m, and to extract the modal structure of the full non-linear flow. The maps of the energy of the fluctuations and the spatio-temporal evolution of the velocity field suggest that fluctuations originate in the outer boundary layer. The threshold of instability if found at Re_c = 1 860. The fluctuations result from two coupled instabilities: high latitude Bödewadt-type boundary layer instability, and secondary non-axisymmetric instability of a centripetal jet forming at the equator of the outer sphere. We explore the variation of the magnetic and kinetic energies with the input parameters, and show that a modified Elsasser number controls their evolution. We can thus compare with experimental determinations of these energies and find a good agreement. Because of the dipolar nature of the imposed magnetic field, the energy of magnetic fluctuations is much larger near the inner sphere, but their origin lies in velocity fluctuations that initiate in the outer boundary layer.
description: 23 pages
Ein Hügelgräberfeld bei Goldbeck, Kr. Stade
Creators: name: Deichmüller, Jürgen
Publisher: name: Nachrichten aus Niedersachsens Urgeschichte
Year: 2019

description: Nachrichten aus Niedersachsens Urgeschichte, Bd. 32 (1963): Nachrichten aus Niedersachsens Urgeschichte
Zwei Hügelgräber am Lindhoop, Gemarkung Weitzmühlen, Kr. Verden (Aller)
Creators: name: Schünemann, Detlef
name: Deichmüller, Jürgen
Publisher: name: Nachrichten aus Niedersachsens Urgeschichte
Year: 2019

description: Nachrichten aus Niedersachsens Urgeschichte, Bd. 32 (1963): Nachrichten aus Niedersachsens Urgeschichte
Elmsburg, Ostelm über dem „Kalten Tal" von Twieflingen, Kr. Helmstedt
Creators: name: Schultz, Hans Adolf
Publisher: name: Nachrichten aus Niedersachsens Urgeschichte
Year: 2019

description: Nachrichten aus Niedersachsens Urgeschichte, Bd. 32 (1963): Nachrichten aus Niedersachsens Urgeschichte
Manual para Elaboração de Tese/Dissertação (PPGSP/UENF)
Creators: name: Palacio, Raul Ernesto Lopez
name: Da Cunha, Maura
name: Mesquita, Wania Amélia Belchior
Publisher: name: Zenodo
Year: 2023
Subjects: Normalização de Documentos
Manuais
Teses e Dissertações

description: A presente publicação constitui uma contribuição à padronização da produção científica do Programa de Pós-Graduação em Sociologia Política da Universidade Estadual do Norte Fluminense Darcy Ribeiro (PPGSP/UENF). Tal iniciativa visa a colaborar, dentro de suas possibilidades, para uma maior visibilidade dos conteúdos gerados pelo programa — os quais, estando organizados, valorizam os resultados e a qualidade do trabalho de pesquisa realizado
Phase transition of quantum corrected Schwarzschild black hole
Creators: name: Kim, Wontae
name: Kim, Yongwan
Publisher: name: arXiv
Year: 2012
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We study the thermodynamic phase transition of a quantum-corrected Schwarzschild black hole. The modified metric affects the critical temperature which is slightly less than the conventional one. The space without black holes is not the hot flat space but the hot curved space due to vacuum fluctuations so that there appears a type of Gross-Perry-Yaffe phase transition even for the very small size of black hole, which is impossible for the thermodynamics of the conventional Schwarzschild black hole. We discuss physical consequences of the new phase transition in this framework.
description: 12 pages, 4 figures, added : version accepted for publication in PLB
Frenzel, Burkhard: Die Vegetations- und Landschaftszonen Nord-Eurasiens während der letzten Eiszeit und während der postglazialen Wärmezeit
Creators: name: Narr, Karl J.
Publisher: name: Nachrichten aus Niedersachsens Urgeschichte
Year: 2019

description: Rezension zu: Frenzel, Burkhard: Die Vegetations- und Landschaftszonen Nord-Eurasiens während der letzten Eiszeit und während der postglazialen Wärmezeit. I. Teil: Allgemeine Grundlagen. Akad. d. Wiss. u. Lit. Mainz, Abhandl. d. Mathern.-Naturwiss. Kl., Jahrg. 1959. Nr. 13. II. Teil: Rekonstruktionsversuch der letzteiszeitlichen und wärmezeitlichen Vegetation Nord-Eurasiens. Ebenda, Jahrg. 1960, Nr. 6. — 167 + 165 Seit, in 8 °, 3 + 2 Faltkarten
description: Nachrichten aus Niedersachsens Urgeschichte, Bd. 32 (1963): Nachrichten aus Niedersachsens Urgeschichte
Peschel, Karl: Die vorgeschichtliche Keramik der Gleichberge bei Römhild in Thüringen
Creators: name: Hahn, ?
Publisher: name: Nachrichten aus Niedersachsens Urgeschichte
Year: 2019

description: Rezension zu: Peschel, Karl: Die vorgeschichtliche Keramik der Gleichberge bei Römhild in Thüringen. Herrmann Böhlaus Nachfolger Weimar, 1962, 4°, 174 S., 71 Taf.
description: Nachrichten aus Niedersachsens Urgeschichte, Bd. 32 (1963): Nachrichten aus Niedersachsens Urgeschichte
Reliability of first order numerical schemes for solving shallow water system over abrupt topography
Creators: name: de Luna, T. Morales
name: Díaz, M. J. Castro
name: Madroñal, C. Parés
Publisher: name: arXiv
Year: 2012
Subjects: subject: Numerical Analysis (math.NA)
subject: FOS: Mathematics

description: We compare some first order well-balanced numerical schemes for shallow water system with special interest in applications where there are abrupt variations of the topography. We show that the space step required to obtain a prescribed error depends on the method. Moreover, the solutions given by the numerical scheme can be significantly different if not enough space resolution is used. We shall pay special attention to the well-known hydrostatic reconstruction technique where it is shown that large bottom discontinuities may be neglected and a modification is proposed to avoid this problem.
Effective action for the Abelian Higgs model in FLRW
Creators: name: George, Damien P.
name: Mooij, Sander
name: Postma, Marieke
Publisher: name: arXiv
Year: 2012
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 compute the divergent contributions to the one-loop action of the U(1) Abelian Higgs model. The calculation allows for a Friedmann-Lemaitre-Robertson-Walker space-time and a time-dependent expectation value for the scalar field. Treating the time-dependent masses as two-point interactions, we use the in-in formalism to compute the first, second and third order graphs that contribute quadratic and logarithmic divergences to the effective scalar action. Working in R-xi gauge we show that the result is gauge invariant upon using the equations of motion.
description: 30 pages, 2 figures; minor changes in second version that matches published version
Chiral symmetry restoration, eigenvalue density of Dirac operator and axial U(1) anomaly at finite temperature
Creators: name: Aoki, Sinya
name: Fukaya, Hidenori
name: Taniguchi, Yusuke
Publisher: name: arXiv
Year: 2012
Subjects: subject: High Energy Physics - Lattice (hep-lat)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Theory (hep-th)
subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: We reconsider constraints on the eigenvalue density of the Dirac operator in the chiral symmetric phase of 2 flavor QCD at finite temperature. To avoid possible ultra-violet(UV) divergences, we work on a lattice, employing the overlap Dirac operator, which ensures the exact "chiral" symmetry at finite lattice spacings. Studying multi-point correlation functions in various channels and taking their thermodynamical limit (and then taking the chiral limit), we obtain stronger constraints than those found in the previous studies: both the eigenvalue density at the origin and its first and second derivatives vanish in the chiral limit of 2 flavor QCD. In addition we show that the axial U(1) anomaly becomes invisible in susceptibilities of scalar and pseudo scalar mesons, suggesting that the 2nd order chiral phase transition with the O(4) scaling is not realized in 2 flavor QCD. Possible lattice artifacts when non-chiral lattice Dirac operator is employed are briefly discussed.
description: 39 pages, 1 figure(2 eps files), a version published in PRD
A robust optimization approach for dynamic traffic signal control with emission considerations
Creators: name: Han, Ke
name: Liu, Hongcheng
name: Gayah, Vikash
name: Friesz, Terry L.
name: Yao, Tao
Publisher: name: arXiv
Year: 2012
Subjects: subject: Optimization and Control (math.OC)
subject: FOS: Mathematics
subject: 90B20, 90C11, 90B10

description: We consider an analytical signal control problem on a signalized network whose traffic flow dynamic is described by the Lighthill-Whitham-Richards (LWR) model (Lighthill and Whitham, 1955; Richards, 1956). This problem explicitly addresses traffic-derived emissions as side constraints. We seek to tackle this problem using a mixed integer mathematical programming approach. Such a class of problems, which we call LWR-Emission (LWR-E), has been analyzed before to certain extent. Since mixed integer programs are practically efficient to solve in many cases (Bertsimas et al., 2011b), the mere fact of having integer variables is not the most significant challenge to solving LWR-E problems; rather, it is the presence of the potentially nonlinear and nonconvex emission-related constraints/objectives that render the program computationally expensive. To address this computational challenge, we proposed a novel reformulation of the LWR-E problem as a mixed integer linear program (MILP). This approach relies on the existence of a statistically valid macroscopic relationship between the aggregate emission rate and the vehicle occupancy of the same link. This relationship is approximated with certain functional forms and the associated uncertainties are handled explicitly using robust optimization (RO) techniques. The RO allows emissions-related constraints and/or objectives to be reformulated as linear forms under mild conditions. To further reduce the computational cost, we employ the link transmission model to describe traffic dynamics with the benefit of fewer (integer) variables and less potential traffic holding. The proposed MILP explicitly captures vehicle spillback, avoids traffic holding, and simultaneously minimizes travel delay and addresses emission-related concerns.
description: 35 pages, 7 figures, 4 tables
Spontaneous Chiral Symmetry Breaking as Condensation of Dynamical Chirality
Creators: name: Alexandru, Andrei
name: Horvath, Ivan
Publisher: name: arXiv
Year: 2012
Subjects: subject: High Energy Physics - Lattice (hep-lat)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Theory (hep-th)
subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: The occurrence of spontaneous chiral symmetry breaking (SChSB) is equivalent to sufficient abundance of Dirac near-zeromodes. However, dynamical mechanism leading to breakdown of chiral symmetry should be naturally reflected in chiral properties of the modes. Here we offer such connection, presenting evidence that SChSB in QCD proceeds via the appearance of modes exhibiting dynamical tendency for local chiral polarization. These modes form a band of finite width Lambda_ch (chiral polarization scale) around the surface of otherwise anti--polarized Dirac sea, and condense. Lambda_ch characterizes the dynamics of the breaking phenomenon and can be converted to a quark mass scale, thus offering conceptual means to determine which quarks of nature are governed by broken chiral dynamics. It is proposed that, within the context of SU(3) gauge theories with fundamental Dirac quarks, mode condensation is equivalent to chiral polarization. This makes Lambda_ch an "order parameter" of SChSB, albeit without local dynamical field representation away from chiral limit. Several uses of these features, both at zero and finite temperature, are discussed. Our initial estimates are Lambda_ch~150 MeV (N_f=0), Lambda_ch~80 MeV (N_f=2+1, physical point), and that the strange quark is too heavy to be crucially influenced by broken chiral symmetry.
description: 12 pages, 5 figures; v2: very minor changes, published version
Giant electrocaloric effect around T$_c$
Creators: name: Rose, Maimon C.
name: Cohen, R. E.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: We use molecular dynamics with a first-principles-based shell model potential to study the electrocaloric effect (ECE) in lithium niobate, LiNbO$_3$, and find a giant electrocaloric effect along a line passing through the ferroelectric transition. With applied electric field, a line of maximum ECE passes through the zero field ferroelectric transition, continuing along a Widom line at high temperatures with increasing field, and along the instability that leads to homogeneous ferroelectric switching below $T_c$ with an applied field antiparallel to the spontaneous polarization. This line is defined as the minimum in the inverse capacitance under applied electric field. We investigate the effects of pressure, temperature and applied electric field on the ECE. The behavior we observe in LiNbO$_3$ should generally apply to ferroelectrics; we therefore suggest that the operating temperature for refrigeration and energy scavenging applications should be above the ferroelectric transition region to obtain large electrocaloric response. We find a relationship among $T_c$, the Widom line and homogeneous switching that should be universal among ferroelectrics, relaxors, multiferroics, and the same behavior should be found under applied magnetic fields in ferromagnets.
description: 5 pages
The short time asymptotics of Nash entropy
Creators: name: Xu, Guoyi
Publisher: name: arXiv
Year: 2012
Subjects: subject: Differential Geometry (math.DG)
subject: Analysis of PDEs (math.AP)
subject: FOS: Mathematics
subject: 35K15, 53C44

description: Let $(M^n, g)$ be a complete Riemannian manifold with $Rc\geq -Kg$, $H(x, y, t)$ is the heat kernel on $M^n$, and $H= (4πt)^{-\frac{n}{2}}e^{-f}$. Nash entropy is defined as $N(H, t)= \int_{M^n} (fH) dμ(x)- \frac{n}{2}$. We studied the asymptotic behavior of $N(H, t)$ and $\frac{\partial}{\partial t}\Big[N(H, t)\Big]$ as $t\rightarrow 0^{+}$, and got the asymptotic formulas at $t= 0$. In the Appendix, we got Hamilton-type upper bound for Laplacian of positive solution of the heat equation on such manifolds, which has its own independent interest.
description: 22pp, reference added, to appear on Pacific Journal of Math
Direct observation of temporal coherence by weak projective measurements of photon arrival time
Creators: name: Hofmann, Holger F.
name: Ren, Changliang
Publisher: name: arXiv
Year: 2012
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We show that a weak projective measurement of photon arrival time can be realized by controllable two photon interferences with photons from short-time reference pulses at a polarization beam splitter. The weak value of the projector on the arrival time defined by the reference pulse can be obtained from the coincidence rates conditioned by a specific output measurement. If the weak measurement is followed by a measurement of frequency, the coincidence counts reveal the complete temporal coherence of the single photon wavefunction. Significantly, the weak values of the input state can also be obtained at higher measurement strengths, so that correlations between weak measurements on separate photons can be observed and evaluated without difficulty. The method can thus be used to directly observe the non-classical statistics of time-energy entangled photons.
description: 7 pages, 1 figure, detailed description of count rate evaluation in weak and strong limits has been added
Systematic Nomenclature
Creators: name: Rogers, Michelle
Publisher: name: Zenodo
Year: 2022
Subjects: Webinar, FAIR, Cheminformatics, Chemical Data

description: This is a flash presentation highlighting working with Systematic Nomenclature. It was presented at the “The IUPAC WorldFAIR Chemistry Webinar “What is a chemical? – User Perspectives on Digital Machine-Readable Depictions”. The event was held on Dec 08, 2022, 11-12:30 pm EST. The recording of the full webinar will be available soon. *WorldFAIR “Global cooperation on FAIR data policy and practice” is funded by the EC HORIZON-WIDERA-2021-ERA-01-41 Coordination and Support Action under Grant Agreement No. 101058393.
Classicalization and Unitarity
Creators: name: Kovner, A.
name: Lublinsky, M.
Publisher: name: arXiv
Year: 2012
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We point out that the scenario for UV completion by "classicalization", proposed recently is in fact Wilsonian in the classical Wilsonian sense. It corresponds to the situation when a field theory has a nontrivial UV fixed point governed by a higher dimensional operator. Provided the kinetic term is a relevant operator around this point the theory will flow in the IR to the free scalar theory. Physically, "classicalization", if it can be realized, would correspond to a situation when the fluctuations of the field operator in the UV are smaller than in the IR. As a result there exists a clear tension between the "classicalization" scenario and constraints imposed by unitarity on a quantum field theory, making the existence of classicalizing unitary theories questionable.
description: Some clarifications and refs added. Accepted as a JHEP publication; 12 pages
A variational approach for continuous supply chain networks
Creators: name: Han, Ke
name: Friesz, Terry L.
name: Yao, Tao
Publisher: name: arXiv
Year: 2012
Subjects: subject: Optimization and Control (math.OC)
subject: FOS: Mathematics
subject: 35C05, 49J20, 90C11

description: We consider a continuous supply chain network consisting of buffering queues and processors first proposed by [D. Armbruster, P. Degond, and C. Ringhofer, SIAM J. Appl. Math., 66 (2006), pp. 896--920] and subsequently analyzed by [D. Armbruster, P. Degond, and C. Ringhofer, Bull. Inst. Math. Acad. Sin. (N.S.), 2 (2007), pp. 433--460] and [D. Armbruster, C. De Beer, M. Freitag, T. Jagalski, and C. Ringhofer, Phys. A, 363 (2006), pp. 104--114]. A model was proposed for such a network by [S. Göttlich, M. Herty, and A. Klar, Commun. Math. Sci., 3 (2005), pp. 545--559] using a system of coupling ordinary differential equations and partial differential equations. In this article, we propose an alternative approach based on a variational method to formulate the network dynamics. We also derive, based on the variational method, a computational algorithm that guarantees numerical stability, allows for rigorous error estimates, and facilitates efficient computations. A class of network flow optimization problems are formulated as mixed integer programs (MIPs). The proposed numerical algorithm and the corresponding MIP are compared theoretically and numerically with existing ones [A. Fügenschuh, S. Göttlich, M. Herty, A. Klar, and A. Martin, SIAM J. Sci. Comput., 30 (2008), pp. 1490--1507; S. Göttlich, M. Herty, and A. Klar, Commun. Math. Sci., 3 (2005), pp. 545--559], which demonstrates the modeling and computational advantages of the variational approach.
description: 25 pages, 13 figures
Morita contexts as lax functors
Creators: name: Lack, Stephen
Publisher: name: arXiv
Year: 2012
Subjects: subject: Category Theory (math.CT)
subject: FOS: Mathematics

description: Monads are well known to be equivalent to lax functors out of the terminal category. Morita contexts are here shown to be lax functors out of the chaotic category with two objects. This allows various aspects in the theory of Morita contexts to be seen as special cases of general results about lax functors. The account we give of this could serve as an introduction to lax functors for those familiar with the theory of monads. We also prove some very general results along these lines relative to a given 2-comonad, with the classical case of ordinary monad theory amounting to the case of the identity comonad on Cat.
description: v2 minor changes, added references; to appear in Applied Categorical Structures
Addressing energy justice through progressive rehabilitation of critical minerals mines in New South Wales, Australia
Creators: name: Bascombe, Denea P.
Publisher: name: Macquarie University
Year: 2023
Subjects: Other education not elsewhere classified

description: The development of the critical minerals industry in Australia is expected to have extensive impacts on regional communities. The significant development required to exploit critical minerals provides an opportunity to embed energy justice. New South Wales (‘NSW’) has not considered energy justice in the Mining Amendment (Standard Conditions of Mining Leases—Rehabilitation) Regulation 2021. This thesis seeks to address the key research question of whether regulations with respect to progressive rehabilitation can afford energy justice to communities affected by critical minerals mines. Because rehabilitation often occurs late in the mine life cycle, initiatives and funding may be inadequate to ensure effective rehabilitation. Communities with proximity to critical minerals mines face challenging decisions and circumstances in respect of environmental, social, and economic health of their community, many of which are compounded by ineffectively rehabilitated land. Progressive rehabilitation is the process of undertaking rehabilitation prior to and throughout the life of the mine, rather than only at the end stages of closure and decommissioning. It may mitigate some of the challenging circumstances faced by local communities by providing ongoing reporting and monitoring of rehabilitation efforts. Progressive rehabilitation may increase opportunities for community participation throughout the life cycle of the mine, while supporting the provision of energy justice for local communities. This thesis poses energy justice as a tool to guide policymakers in developing progressive rehabilitation regulations, and thus support a just transition to a low carbon economy.
Existence of optima and equilibria for traffic flow on networks
Creators: name: Bressan, Alberto
name: Han, Ke
Publisher: name: arXiv
Year: 2012
Subjects: subject: Analysis of PDEs (math.AP)
subject: FOS: Mathematics
subject: 35L65, 49K20, 90B20, 91A10

description: This paper is concerned with a conservation law model of traffic flow on a network of roads, where each driver chooses his own departure time in order to minimize the sum of a departure cost and an arrival cost. The model includes various groups of drivers, with different origins and destinations and having different cost functions. Under a natural set of assumptions, two main results are proved: (i) the existence of a globally optimal solution, minimizing the sum of the costs to all drivers, and (ii) the existence of a Nash equilibrium solution, where no driver can lower his own cost by changing his departure time or the route taken to reach destination. In the case of Nash solutions, all departure rates are uniformly bounded and have compact support.
description: 22 pages, 5 figures
Visualizing Spacetime Curvature via Gradient Flows II: An Example of the Construction of a Newtonian analogue
Creators: name: Abdelqader, Majd
name: Lake, Kayll
Publisher: name: arXiv
Year: 2012
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: This is the first in a series of papers in which the gradient flows of fundamental curvature invariants are used to formulate a visualization of curvature. We start with the construction of strict Newtonian analogues (not limits) of solutions to Einstein's equations based on the topology of the associated gradient flows. We do not start with any easy case. Rather, we start with the Curzon - Chazy solution, which, as history shows, is one of the most difficult exact solutions to Einstein's equations to interpret physically. We show that the entire field of the Curzon - Chazy solution, up to a region very "close" to the the intrinsic singularity, strictly represents that of a Newtonian ring, as has long been suspected. In this regard, we consider our approach very successful. As regrades the local structure of the singularity of the Curzon - Chazy solution within a fully general relativistic analysis, however, whereas we make some advances, the full structure of this singularity remains incompletely resolved.
description: 12 pages twocolumn revtex 4-1 9 figures. Expanded and corrected
title: Persistent sciatic artery thrombosed aneurysm: An incidental diagnosis
Creators: name: Bento, Filipa
Publisher: name: EURORAD
Year: 2023
Subjects: subject: Cardiovascular
subject: Cardiovascular system
subject: CT
subject: Clinical Case

description: Clinical History: 82-year-old, female patient, was admitted to the emergency room due to hypoglycemia, associated with previous episodes of loss of consciousness. The medical history was irrelevant. There was no record of hypoglycemic drugs intake. Laboratory tests showed endogenous hyperinsulinism. A thoraco-abdominopelvic CT scan was requested due to suspicion of an insulinoma.

description: 82 years, female
Functional Renormalization Group Study of Phonon Mode Effects on Chiral Critical Point
Creators: name: Kamikado, K.
name: Kunihiro, T.
name: Morita, K.
name: Ohnishi, A.
Publisher: name: arXiv
Year: 2012
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We apply the functional renormalization-group (FRG) equation to analyze the nature of the QCD critical point beyond the mean-field approximation by taking into consideration the fact that the soft mode associated with the QCD critical point is a linear combination of fluctuations of the chiral condensate and the quark-number density, rather than the pure chiral fluctuations. We first construct an extended quark-meson model in which a new field corresponding to quark-number density is introduced to the conventional one composed of the chiral fields sigma, pi and the quarks. The fluctuations of the quark-number density as well as the chiral condensate are taken into account by solving the FRG equation which contains sigma and the new field as coupled dynamical variables. It is found that the mixing of the two dynamical variables causes a kind of level repulsion between the curvature masses, which in turn leads to an expansion of the critical region of the QCD critical point, depending on the coupling constants in the model yet to be determined from microscopic theories or hopefully by experiments.
description: 16 pages, 6 figures
Cybersecurity-Awareness. Die spielerische Gestaltung von Cybersecurity – Untersuchung der Effektivität von spielbasierten Ansätzen am Beispiel des Escape-Rooms
Creators: name: Malama, Annina
Publisher: name: Hochschule für Angewandte Psychologie FHNW
Year: 2023
Subjects: subject: Cybersecurity
subject: Awareness
subject: Gamification
subject: Escape-Room
subject: 150 - Psychologie
subject: 003 - Systeme

description: In einer zunehmend digitalen Welt ist der Schutz vertraulicher Informationen und Systeme vor Bedrohungen von entscheidender Bedeutung. Angesichts der kontinuierlichen Weiterentwicklung von Angriffsmethoden und der wachsenden Komplexität von Cyberbedrohungen sind innovative und effektive Schulungsansätze erforderlich. Diese Bachelorarbeit untersucht die Wirksamkeit von spielbasierten Ansätzen bei der Vermittlung von Cyberthemen am Beispiel eines Escape-Rooms. Durch den Einsatz qualitativer sozialwissenschaftlicher Methoden wurden sieben Cybersecurity-Experten aus der Schweiz befragt, um Einblicke in die praktische Umsetzung von Awareness-Massnahmen zu gewinnen. Der spielbasierte Ansatz bietet eine einzigartige Möglichkeit, komplexe Themen interaktiv und erlebnisorientiert zu vermitteln. Die Sensibilisierung für Cybersecurity wird von verschiedenen Faktoren beeinflusst, wobei das individuelle Sicherheitsbewusstsein einen wesentlichen Einfluss darstellt. Ausserdem zeigen die Ergebnisse die Bedeutung der Berücksichtigung dieser Faktoren bei der Konzeption und Umsetzung von Schulungsinitiativen im Bereich Cybersecurity.
Some implications of lepton flavor violating processes in a supersymmetric Type II seesaw model at TeV scale
Creators: name: Hundi, R. S.
Publisher: name: arXiv
Year: 2012
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We have conceived a supersymmetric Type II seesaw model at TeV scale, which has some additional particles consisting of scalar and fermionic triplet Higgs states, whose masses being around few hundred GeV. In this particular model, we have studied constraints on the masses of triplet states arising from the lepton flavor violating (LFV) processes, such as $μ\to 3e$ and $μ\to eγ$. We have analyzed the implications of these constraints on other observable quantities such as the muon anomalous magnetic moment and the decay patterns of scalar triplet Higgses. Scalar triplet Higgs states can decay into leptons and into supersymmetric fields. We have found that the constraints from LFV can effect these various decay modes.
description: 32 pages, 13 figures, 3 tables, a new section on detection prospects of the model and references are added, sharpened the content of the paper but conclusions are unchanged; accepted by Eur. Phys. J. C
Facteurs socio-économiques influençant l'autonomisation des femmes en milieu rural au Bénin
Creators: name: KEGNIDE, Eyitayo Raïnath
name: VODOUHE, Fifanou G.
Publisher: name: Zenodo
Year: 2023
Subjects: Autonomisation ; femmes ; milieu ; rural ; Bénin

description: Dans les discours sur le développement, l'autonomisation des femmes est devenue une question importante ces derniers temps et est considérée de nos jours comme une condition sine quoi-non du progrès pour un pays. Par conséquent, la question de l'autonomisation des femmes est d'une importance capitale pour les penseurs politiques, les spécialistes des sciences sociales et les réformateurs. L'objectif de cette recherche est de déterminer les facteurs pouvant influencés les différentes dimensions de l'autonomisation de la femme en milieu rural au Bénin. Les données sur les dimensions de l'autonomisation des femmes (économiques, socioculturelle et familiale) ont été collectées et soumises à une Analyse en Composante Principale pour construire les indices de l'autonomisation et un indice d'autonomisation unique. Les facteurs pouvant influencés ces dimensions ont été déterminés à l'aide d'une régression logistique multivariée. Il ressort des différentes analyses que le fait d'avoir un compte à la banque, avoir accès à internet, la taille du ménage, l'écart d'âge entre le chef ménage et la femme, la branche d'activité du chef ménage, la religion, le niveau d'instruction du chef ménage, et la situation matrimoniale de la femme sont les facteurs qui influencent de façon générale l'autonomisation de la femme en milieu rural.
Existence of simultaneous route and departure choice dynamic user equilibrium
Creators: name: Han, Ke
name: Friesz, Terry L.
name: Yao, Tao
Publisher: name: arXiv
Year: 2012
Subjects: subject: Optimization and Control (math.OC)
subject: Dynamical Systems (math.DS)
subject: FOS: Mathematics
subject: 90B10, 90B20, 91A10

description: This paper is concerned with the existence of the simultaneous route-and-departure choice dynamic user equilibrium (SRDC-DUE) in continuous time, first formulated as an infinite-dimensional variational inequality in Friesz et al. (1993). In deriving our existence result, we employ the generalized Vickrey model (GVM) introduced in and to formulate the underlying network loading problem. As we explain, the GVM corresponds to a path delay operator that is provably strongly continuous on the Hilbert space of interest. Finally, we provide the desired SRDC-DUE existence result for general constraints relating path flows to a table of fixed trip volumes without invocation of a priori bounds on the path flows.
description: 21 pages
A Review of Long-baseline Neutrino Oscillation Experiments
Creators: name: Feldman, G. J.
name: Hartnell, J.
name: Kobayashi, T.
Publisher: name: arXiv
Year: 2012
Subjects: subject: High Energy Physics - Experiment (hep-ex)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: A review of accelerator long-baseline neutrino oscillation experiments is provided, including all experiments performed to date and the projected sensitivity of those currently in progress. Accelerator experiments have played a crucial role in the confirmation of the neutrino oscillation phenomenon and in precision measurements of the parameters. With a fixed baseline and detectors providing good energy resolution, precise measurements of the ratio of distance/energy (L/E) on the scale of individual events have been made and the expected oscillatory pattern resolved. Evidence for electron neutrino appearance has recently been obtained, opening a door for determining the CP violating phase as well as resolving the mass hierarchy and the octant of theta23: some of the last unknown parameters of the standard model extended to include neutrino mass.
description: 43 pages, 36 figures. Invited review for the special issue on neutrinos of Advances in High Energy Physics
Momentum distribution of 1D Bose gases at the quasi-condensation crossover: theoretical and experimental investigation
Creators: name: Jacqmin, Thibaut
name: Fang, Bess
name: Berrada, Tarik
name: Roscilde, Tommaso
name: Bouchoule, Isabelle
Publisher: name: arXiv
Year: 2012
Subjects: subject: Quantum Gases (cond-mat.quant-gas)
subject: FOS: Physical sciences

description: We investigate the momentum distribution of weakly interacting 1D Bose gases at thermal equilibrium both experimentally and theoretically. Momentum distribution of single 1D Bose gases is measured using a focusing technique, whose resolution we improve via a guiding scheme. The momentum distribution compares very well with quantum Monte Carlo calculations for the Lieb-Liniger model at finite temperature, allowing for an accurate thermometry of the gas that agrees with (and improves upon) the thermometry based on in situ density fluctuation measurements. The quasi-condensation crossover is investigated via two different experimental parameter sets, corresponding to the two different sides of the crossover. Classical field theory is expected to correctly describe the quasi-condensation crossover of weakly interacting gases. We derive the condition of validity of the classical field theory, and find that, in typical experiments, interactions are too strong for this theory to be accurate. This is confirmed by a comparison between the classical field predictions and the numerically exact quantum Monte Carlo calculations.
description: 8 pages