cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Sporadic Long-term Variability in Radio Activity from a Brown Dwarf
Creators: name: Antonova, A.
name: Doyle, J. G.
name: Hallinan, G.
name: Golden, A.
name: Koen, C.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: Radio activity has been observed in a large variety of stellar objects, including in the last few years, ultra-cool dwarfs. To explore the extent of long-term radio activity in ultra-cool dwarfs, we use data taken over an extended period of 9 hr from the Very Large Array of the source 2MASS J05233822-1403022 in September 2006, plus data taken in 2004. The observation taken in September 2006 failed to detect any radio activity at 8.46 GHz. A closer inspection of earlier data reveals that the source varied from a null detection on 3 May 2004, to $\approx$95 $μ$Jy on 17 May 2004, to 230 $μ$Jy on 18 June 2004. The lack of detection in September 2006 suggests at least a factor of ten flux variability at 8.46 GHz. Three short photometric runs did not reveal any optical variability. In addition to the observed pulsing nature of the radio flux from another ultra-cool source, the present observations suggests that ultra-cool dwarfs may not just be pulsing but can also display long-term sporadic variability in their levels of quiescent radio emission. The lack of optical photometric variability suggests an absence of large-scale spots at the time of the latest VLA observations, although small very high latitude spots combined with a low inclination could cause very low amplitude rotational modulation which may not be measurable. We discuss this large variability in the radio emission within the context of both gyrosynchrotron emission and the electron-cyclotron maser, favoring the latter mechanism.
description: 7 pages, 2 figures, 1 table, accepted for publication in A&A Letters
Vernunft und Leidenschaft
Creators: name: Grebing, Helga
Publisher: name: Moving the Social
Year: 2015

description: Hartmut Soell: Helmut Schmidt. Band 1: 1918–1969. Vernunft und Leidenschaft, München: Deutsche Verlags-Anstalt 2003, 958 Seiten, 39,90 €
description: Moving the Social, Vol 34 (2005): Forschungen und Forschungsberichte
Possible Connection between Probability, Spacetime Geometry and Quantum Mechanics
Creators: name: Canessa, E.
Publisher: name: arXiv
Year: 2007
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: Other Condensed Matter (cond-mat.other)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Following our discussion [Physica A, 375 (2007) 123] to associate an analogous probabilistic description with spacetime geometry in the Schwarzschild metric from the macro- to the micro-domain, we argue that there is a possible connection among normalized probabilities, spacetime geometry (in the form of Schwarzschild radii) and quantum mechanics (in the form of complex wave functions). We show how this association along different (n)-nested surfaces --representing curve space due to an inhomogeneous density of matter-- preserves the postulates of quantum mechanics at different geometrical scales.
description: in press
Crime under the influence : the effects of alcohol intoxication during a crime on subsequent physiological detection of deception
Creators: name: O'Toole, Dennis Michael
Publisher: name: University of British Columbia
Year: 2010

description: Eighty male undergraduate students were randomly assigned to one of five groups in an analogue investigation of crime-intoxication on the physiological detection of deception. Sixty-four of the subjects committed a mock crime and half of these were legally intoxicated during the crime. Sixteen subjects committed no crime and served as innocent controls. Results only partially replicated those of Bradley and Ainsworth (1984). Whereas they found crime-intoxication diminished the effectiveness of both the control question test (CQT) and the guilty knowledge test (GKT), the present study found crime-intoxication diminished the accuracy of the CQT only for certain subjects; those who reported high subjective arousal during the crime. Results showed no alcohol effect on the GKT. In light of their results Bradley and Ainsworth suggested that alcohol may act through emotional or memory processes important to polygraphic examination. In a fully factorial design, the present study investigated the effects of threat during the crime and memory for crime details on polygraph outcome. As well, the effect of alcohol on these "emotion" and memory variables was examined. Memory was found to be an important variable in GKT accuracy but not important to CQT accuracy. Threat, as operationalized for the present investigation, had no effect on either the CQT or the GKT but a component of the threat variable, subjective arousal, was found to affect GKT accuracy but not that of the CQT. Raskin's (1979) two-response model of detection of deception is used to explain the results of this study although the relationship of subjective arousal to polygraph outcome is unclear and requires examination in future studies.
A scheene Leich? Stand und Perspektiven der westdeutschen Arbeitergeschichte nach 1945
Creators: name: Süß, Dietmar
Publisher: name: Moving the Social
Year: 2015

description: In his article Dietmar Süß analyses the perspectives of Western German workers’ historiography which has lost much oft its impact within the last two decades. After the breakdown of the GDR research has focused primarily on the “Arbeiter- und Bauernstaat”. Süß points out that the Post Word War II period has not fully taken its place within contemporary history yet. He suggests further thinking about the term “worker”, the changing role of workers’ culture, workers’ milieu and the workers’ movement in Western Germany after the Nazi regime. To illustrate perspectives, Süß presents new directions of risk management between workers, trade unions and employers. In a case study, he deals with the consumption of beer at the work place in the steel production of Upper Palatinate in the 1960s. As new focal points of research, Süß proposes the intertwining of the workers’ movement and new social movements as well as research on unemployment and the changing relationship between workers and clerks. His conclusions imply the importance to combine approaches of workers’ history, general social history and political history.
description: Moving the Social, Vol 34 (2005): Forschungen und Forschungsberichte
Optimal control of stochastic differential equations with dynamical boundary conditions
Creators: name: Bonaccorsi, S.
name: Confortola, F.
name: Mastrogiacomo, E.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Probability (math.PR)
subject: FOS: Mathematics

description: In this paper we investigate the optimal control problem for a class of stochastic Cauchy evolution problem with non standard boundary dynamic and control. The model is composed by an infinite dimensional dynamical system coupled with a finite dimensional dynamics, which describes the boundary conditions of the internal system. In other terms, we are concerned with non standard boundary conditions, as the value at the boundary is governed by a different stochastic differential equation.
description: 18 pages
Gestapo V-Leute kommunistischer Herkunft – auch ein Strukturproblem der KPD?
Creators: name: Mensing, Wilhelm
Publisher: name: Moving the Social
Year: 2015

description: The Communist Party of Germany (KPD) – along its line of unconditional loyalty to the Soviet Party – already in the early 1920s established an undercover so-called AM-Apparat (antimilitarist apparatus). This included an intelligence service to investigate political antagonists and at the same time fight (police) spies, „traitors“ and agent provocateurs. In this field, for years an often bloody competition between Communists and Nazis took place. No kind of intelligence, in particular fighting (police) spies, was new to the KPD at the moment of Nazitakeover in January 1933. The KPD, however, was then confronted with coinciding of executive public power and political enmity. Some members of the KPD, including several operatives of the AM-Apparat, became renegades in the service of the Gestapo. A number of those Communists taken into preventive custody by the Gestapo, under heavy torture became secret agents of the Gestapo. These former comrades harmed effectively the illegal fight of the KPD during the Nazi regime. The author, under the impression of missing systematic research in this field, started a regional analysis in the Rhein/Ruhr area. It was based in particular on the stock of approx. 65.000 Gestapo files in the Düsseldorf State Archive. In his first comprehensive report he estimates the number of former Communist Gestapo-agents to approx. 300 in the Rhein/Ruhr area.
description: Moving the Social, Vol 34 (2005): Forschungen und Forschungsberichte
Quasi-periodic oscillations in the TESS light curve of TX Col, a diskless intermediate polar on the precipice of forming an accretion disk
Creators: name: Littlefield, Colin
name: Scaringi, Simone
name: Garnavich, Peter
name: Szkody, Paula
name: Kennedy, Mark R.
name: Ilkiewicz, Krystian
name: Mason, Paul A.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: One of the fundamental properties of an intermediate polar is the dynamical nature of the accretion flow as it encounters the white dwarf's magnetosphere. Many works have presumed a dichotomy between disk-fed accretion, in which the WD accretes from a Keplerian disk, and stream-fed accretion, in which the matter stream from the donor star directly impacts the WD's magnetosphere without forming a disk. However, there is also a third, poorly understood regime in which the accretion flow consists of a torus of diamagnetic blobs that encircles the WD. This mode of accretion is expected to exist at mass-transfer rates below those observed during disk-fed accretion, but above those observed during pure stream-fed accretion. We invoke the diamagnetic-blob regime to explain the exceptional TESS light curve of the intermediate polar TX Col, which transitioned into and out of states of enhanced accretion during Cycles 1 and 3. Power-spectral analysis reveals that the accretion was principally stream-fed. However, when the mass-transfer rate spiked, large-amplitude quasi-periodic oscillations (QPOs) abruptly appeared and dominated the light curve for weeks. The QPOs have two striking properties: they appear in a stream-fed geometry at elevated accretion rates, and they occur preferentially within a well-defined range of frequencies (~10-25 cycles per day). We propose that during episodes of enhanced accretion, a torus of diamagnetic blobs forms near the binary's circularization radius and that the QPOs are beats between the white dwarf's spin frequency and unstable blob orbits within the WD's magnetosphere. We discuss how such a torus could be a critical step in producing an accretion disk in a formerly diskless system.
description: Accepted for publication in AJ
Model-independent constraints on Delta F=2 operators and the scale of New Physics
Creators: name: UTfit Collaboration
name: Bona, M.
name: Ciuchini, M.
name: Franco, E.
name: Lubicz, V.
name: Martinelli, G.
name: Parodi, F.
name: Pierini, M.
name: Roudeau, P.
name: Schiavi, C.
name: Silvestrini, L.
name: Sordini, V.
name: Stocchi, A.
name: Vagnoni, V.
Publisher: name: arXiv
Year: 2007
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We update the constraints on new-physics contributions to Delta F=2 processes from the generalized unitarity triangle analysis, including the most recent experimental developments. Based on these constraints, we derive upper bounds on the coefficients of the most general Delta F=2 effective Hamiltonian. These upper bounds can be translated into lower bounds on the scale of new physics that contributes to these low-energy effective interactions. We point out that, due to the enhancement in the renormalization group evolution and in the matrix elements, the coefficients of non-standard operators are much more constrained than the coefficient of the operator present in the Standard Model. Therefore, the scale of new physics in models that generate new Delta F=2 operators, such as next-to-minimal flavour violation, has to be much higher than the scale of minimal flavour violation, and it most probably lies beyond the reach of direct searches at the LHC.
description: 32 pages, 11 figures, 6 tables. v2: error in the implementation of D0 untagged Bs->J/Psi phi correlation matrix corrected. Improved presentation of the results and discussion of ambiguities in untagged Bs->J/Psi phi. Results for NP in Bs oscillations changed. Final version to appear in JHEP
ความสัมพันธ์ระหว่างวัฒนธรรมทางการบัญชีกับผลการดำเนินงานขององค์กรปกครองส่วนท้องถิ่นในกลุ่มจังหวัดร้อยแก่นสารสินธุ์
Creators: name: วริษา  ยืนสุข
Publisher: name: มหาวิทยาลัยมหาสารคาม
Year: 2557
Subjects: วัฒนธรรมทางการบัญชี, ผลการดำเนินงาน, กลุ่มจังหวัดร้อยเอ็ดแก่นสารสินธุ์

description: 4, 33, วารสารมนุษยศาสตร์และสังคมศาสตร์  มหาวิทยาลัยมหาสารคาม
On the Energy-Momentum Problem in Static Einstein Universe
Creators: name: Aygun, Sezgin
name: Tarhan, Ismail
name: Baysal, Husnu
Publisher: name: arXiv
Year: 2007
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: This paper has been removed by arXiv administrators because it plagiarizes gr-qc/0410004, gr-qc/0603075, and others. This paper also has excessive overlap with the following papers also written by the authors or their collaborators: gr-qc/0608111, and others.
description: This submission has been withdrawn by arXiv administrators due to inappropriate text reuse from external sources
Microelectromechanical components in electrical metrology
Creators: name: Manninen, Antti
name: Karkkainen, Anu
name: Pesonen, Nadine
name: Oja, Aarne
name: Seppa, Heikki
Publisher: name: arXiv
Year: 2007
Subjects: subject: Instrumentation and Detectors (physics.ins-det)
subject: FOS: Physical sciences

description: Microelectromechanical systems (MEMS) can offer a competitive alternative for conventional technology in electrical precision measurements. This article summarises recent work in development of MEMS solutions for electrical metrology. MEMS-based voltage references, RMS-to-DC converters, high frequency power sensors, and reference oscillators are discussed. The main principle of operation of the components is the balance between electrical forces and mechanical spring forces in micromachined silicon structures. In RMS sensors and RMS-to-DC converters, the quadratic voltage dependence of the force between plates of a moving-plate capacitor is utilised, and the operation of the MEMS voltage reference is based on the pull-in phenomenon of a moving-plate capacitor. Advantages of MEMS devices compared to more conventional solutions include small size, low power consumption, low price in mass production, and stability. The drift caused by electrostatic charging effects has turned out to be a major problem. This problem has not yet been solved in DC applications, but it can be circumvented by using AC actuation instead of DC and by compensating the internal DC voltages of the component. In this way, an AC voltage reference with relative drift rate below 2 ppm during a three-week test period has been constructed. Even better stability has been demonstrated with a MEMS-based reference oscillator: no changes in resonance frequency were observed at relative uncertainty level of about 0.01 ppm in a measurement which was continued for more than a month. MEMS components have also been developed for measuring RF and microwave power up to frequencies of about 40 GHz. Unlike conventional high frequency power sensors, which measure the absorbed power, the MEMS device measures the power that is transmitted through the sensor.
ผลเชิงเศรษฐศาสตร์ของระบบผลิตกระแสไฟฟ้าด้วยแผงแสงอาทิตย์เพื่อขายสำหรับบ้านพักอาศัยในเขตอำเภอเมืองจังหวัดมหาสารคาม
Creators: name: อภิชน มุ่งชู
Publisher: name: มหาวิทยาลัยมหาสารคาม
Year: 2556
Subjects: ระบบผลิตกระแสไฟฟ้าด้วยพลังงานแสงอาทิตย์, มหาสารคาม, เศรษฐศาสตร์

description: 4, 32, วารสารวิทยาศาสตร์และเทคโนโลยี มหาวิทยาลัยมหาสารคาม
Core-mantle boundary deformations and J2 variations resulting from the 2004 Sumatra earthquake
Creators: name: Cannelli, V.
name: Melini, D.
name: De Michelis, P.
name: Piersanti, A.
name: Florindo, F.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Geophysics (physics.geo-ph)
subject: FOS: Physical sciences

description: The deformation at the core-mantle boundary produced by the 2004 Sumatra earthquake is investigated by means of a semi-analytic theoretical model of global coseismic and postseismic deformation, predicting a millimetric coseismic perturbation over a large portion of the core-mantle boundary. Spectral features of such deformations are analysed and discussed. The time-dependent postseismic evolution of the elliptical part of the gravity field (J2) is also computed for different asthenosphere viscosity models. Our results show that, for asthenospheric viscosities smaller than 10^18 Pa s, the postseismic J2 variation in the next years is expected to leave a detectable signal in geodetic observations.
description: 14 pages, 8 figures, 1 table. It will appear in Geophysical Journal International
Towards Skyrmion Stars: Large Baryon Configurations in the Einstein-Skyrme Model
Creators: name: Piette, B. M. A. G.
name: Probert, G. I.
Publisher: name: arXiv
Year: 2007
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We investigate the large baryon number sector of the Einstein-Skyrme model as a possible model for baryon stars. Gravitating hedgehog skyrmions have been investigated previously and the existence of stable solitonic stars excluded due to energy considerations. However, in this paper we demonstrate that by generating gravitating skyrmions using rational maps, we can achieve multi-baryon bound states whilst recovering spherical symmetry in the limit where B becomes large.
description: 23 pages, 8 figures
Hopping and clustering of oxygen vacancies in SrTiO3 by anelastic relaxation
Creators: name: Cordero, F.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: The complex elastic compliance s11(w,T) of SrTiO3-d has been measured as a function of the O deficiency d < 0.01. The two main relaxation peaks in the absorption are identified with hopping of isolated O vacancies over a barrier of 0.60 eV and reorientation of pairs of vacancies involving a barrier of 1 eV. The pair binding energy is ~0.2 eV and indications for additional clustering, possibly into chains, is found already at d ~0.004. The anistropic component of the elastic dipole of an O vacancy is Deltalambda = 0.026.
description: 4 pages, 4 figures, submitted to Phys. Rev. Lett
Derivation of a Non-Local Interfacial Hamiltonian for Short-Ranged Wetting II: General Diagrammatic Structure
Creators: name: Parry, A. O.
name: Rascon, C.
name: Bernardino, N. R.
name: Romero-Enrique, J. M.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Soft Condensed Matter (cond-mat.soft)
subject: FOS: Physical sciences

description: In our first paper, we showed how a non-local effective Hamiltionian for short-ranged wetting may be derived from an underlying Landau-Ginzburg-Wilson model. Here, we combine the Green's function method with standard perturbation theory to determine the general diagrammatic form of the binding potential functional beyond the double-parabola approximation for the Landau-Ginzburg-Wilson bulk potential. The main influence of cubic and quartic interactions is simply to alter the coefficients of the double parabola-like zig-zag diagrams and also to introduce curvature and tube-interaction corrections (also represented diagrammatically), which are of minor importance. Non-locality generates effective long-ranged many-body interfacial interactions due to the reflection of tube-like fluctuations from the wall. Alternative wall boundary conditions (with a surface field and enhancement) and the diagrammatic description of tricritical wetting are also discussed.
description: (14 pages, 2 figures) Submitted J. Phys. Condens. Matter
Scanning Tunneling Spectroscopy in the Superconducting State and Vortex Cores of the beta-pyrochlore KOs2O6
Creators: name: Dubois, C.
name: Santi, G.
name: Cuttat, I.
name: Berthod, C.
name: Jenkins, N.
name: Petrović, A. P.
name: Manuel, A. A.
name: Fischer, Ø.
name: Kazakov, S. M.
name: Bukowski, Z.
name: Karpinski, J.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: We performed the first scanning tunneling spectroscopy measurements on the pyrochlore superconductor KOs2O6 (Tc = 9.6 K) in both zero magnetic field and the vortex state at several temperatures above 1.95 K. This material presents atomically flat surfaces, yielding spatially homogeneous spectra which reveal fully-gapped superconductivity with a gap anisotropy of 30%. Measurements performed at fields of 2 and 6 T display a hexagonal Abrikosov flux line lattice. From the shape of the vortex cores, we extract a coherence length of 31-40 Å, in agreement with the value derived from the upper critical field Hc2. We observe a reduction in size of the vortex cores (and hence the coherence length) with increasing field which is consistent with the unexpectedly high and unsaturated upper critical field reported.
description: 5 pages, 4 figures, Revtex 4
Where are Bottlenecks in NK Fitness Landscapes?
Creators: name: Verel, Sébastien
name: Collard, Philippe
name: Clergue, Manuel
Publisher: name: arXiv
Year: 2007
Subjects: subject: Neural and Evolutionary Computing (cs.NE)
subject: FOS: Computer and information sciences

description: Usually the offspring-parent fitness correlation is used to visualize and analyze some caracteristics of fitness landscapes such as evolvability. In this paper, we introduce a more general representation of this correlation, the Fitness Cloud (FC). We use the bottleneck metaphor to emphasise fitness levels in landscape that cause local search process to slow down. For a local search heuristic such as hill-climbing or simulated annealing, FC allows to visualize bottleneck and neutrality of landscapes. To confirm the relevance of the FC representation we show where the bottlenecks are in the well-know NK fitness landscape and also how to use neutrality information from the FC to combine some neutral operator with local search heuristic.
Noncommutative Solitons in a Supersymmetric Chiral Model in 2+1 Dimensions
Creators: name: Lechtenfeld, Olaf
name: Popov, Alexander D.
Publisher: name: arXiv
Year: 2007
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We consider a supersymmetric Bogomolny-type model in 2+1 dimensions originating from twistor string theory. By a gauge fixing this model is reduced to a modified U(n) chiral model with N<=8 supersymmetries in 2+1 dimensions. After a Moyal-type deformation of the model, we employ the dressing method to explicitly construct multi-soliton configurations on noncommutative R^{2,1} and analyze some of their properties.
description: 1+24 pages; v2: addition to Introduction and minor clarifications in Section 4, version published in JHEP
title: Les Cahiers du dictionnaire. 2013, n° 5
title: Dictionnaire et enseignement
titleType: Subtitle
Creators: name: (:Unap)
Publisher: name: Classiques Garnier
Year: 2013
Subjects: subject: Dictionnaire
subject: Dictionnaire de la langue française
subject: Métalexicographie
subject: Linguistique
subject: Lexicologie
subject: Métalangage
subject: Langue française
subject: Mot
subject: Terminologie
subject: Sens

description: Contributeurs : C. Boccuzzi, A. Canaj, M. Costagliola ­­d'Abele, F. Dado, G. Dotoli, F. Finniss-Boursin, E. Gishti, C. Grimaldi, A. Hyso, E. Kromidha, M. Kumbaro, S. F. Lattarulo, M. Lo Nostro, F. Martin, D. Melnikienė, E. Nasufi, A. Piscazzi, S. Pinto, F. Pruvost, A. Rey, D. Rira, L. Russo, A. Sula, E. Surmonte, E. Tupja, M. T. Zanola.
title: Hybrid master equation for jump-diffusion approximation of biomolecular reaction networks
Creators: name: Altintan, Derya
name: Koeppl, Heinz
Publisher: name: Springer
Year: 2021

description: Cellular reactions have a multi-scale nature in the sense that the abundance of molecular species and the magnitude of reaction rates can vary across orders of magnitude. This diversity naturally leads to hybrid models that combine continuous and discrete modeling regimes. In order to capture this multi-scale nature, we proposed jump-diffusion approximations in a previous study. The key idea was to partition reactions into fast and slow groups, and then to combine a Markov jump updating scheme for the slow group with a diffusion (Langevin) updating scheme for the fast group. In this study we show that the joint probability density function of the jump-diffusion approximation over the reaction counting process satisfies a hybrid master equation that combines terms from the chemical master equation and from the Fokker–Planck equation. Inspired by the method of conditional moments, we propose a efficient method to solve this master equation using the moments of reaction counters of the fast reactions given the reaction counters of the slow reactions. For each time point of interest, we then solve a set of maximum entropy problems in order to recover the conditional probability density from its moments. This finally allows us to reconstruct the complete joint probability density over all reaction counters and hence obtain an approximate solution of the hybrid master equation. Finally, we show the accuracy of the method applied to a simple multi-scale conversion process.
Star formation histories of Coma Cluster galaxies matched to simulated orbits hint at quenching around first pericenter
Creators: name: Upadhyay, A. K.
name: Oman, K. A.
name: Trager, S. C.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: By tracing the orbital and star formation histories of galaxies within the Coma cluster, we seek to understand the role of the high-density cluster environment in quenching these galaxies. We combine star formation histories extracted from high-signal-to-noise spectra of 11 early-type galaxies around the center of the Coma cluster with probability distributions for their orbital parameters obtained using an N-body simulation to connect their orbital and star formation histories. We find that all 11 galaxies likely quenched near their first pericentric approach. Higher stellar mass galaxies ($\log(M_\star/\mathrm{M}_\odot)>10$) had formed a higher fraction of their stellar mass (more than $\sim90\%$) than their lower mass counterparts ($\sim 80$-$90\%$) by the time they fell into the cluster (when they cross $2.5r_\mathrm{vir}$). We find that the expected infall occurred around $z\sim0.6$, followed by the first pericentric passage $\sim4\,\mathrm{Gyr}$ later. Galaxies in our sample formed a significant fraction of their stellar mass, up to $15\%$, between infall and first pericenter, and had assembled more than $\sim98\%$ of their cumulative stellar mass by first pericenter. Unlike previous low-redshift studies that suggest that star formation continues until about first apocenter or later, the high percentage of stellar mass already formed by first pericenter in our sample galaxies points to star formation ceasing within a gigayear after the first pericentric passage. We consider the possible physical mechanisms driving quenching and find that our results resemble the situation in clusters at $z\sim1$, where active stripping of gas (ram-pressure or tidally driven) seems to be required to quench satellites by their first pericentric passage. However, a larger sample will be required to conclusively account for the unknown fraction of preprocessed satellites in the Coma cluster.
description: 13 pages, 7 figures, accepted in A&A on 14/05/2021
title: Die Geister der Bombe. Der Ausstellungskatalog „Nachbilder. Wechselnde Perspektiven auf Hiroshima“
Creators: name: Mirschel, Markus
Publisher: name: ZZF - Centre for Contemporary History: Visual History
Year: 2021

description: Der zweisprachig gehaltene Ausstellungskatalog „Nachbilder. Wechselnde Perspektiven auf Hiroshima“ basiert auf der von dem freien Journalisten und Fotografen David Rojkowski kuratierten gleichnamigen Hiroshima-Ausstellung. Im Sommer 2020 wurde sie im Mahnmal St. Nikolai in Hamburg gezeigt. In Zusammenarbeit zwischen dem Japan-Zentrum der Ludwig-Maximilians-Universität München (Gabriele Vogt; Essay) und der Landeszentrale für politische Bildung Hamburg entstand zur Ausstellung der eher schlicht anmutende Begleitband mit über 150 Abbildungen auf 132 Seiten. Seit Anfang des Jahres 2021 gibt es auch eine Website, die einen guten Einblick in die Wanderausstellung ermöglicht.
Tuneable local order in thermoelectric crystals
Creators: name: Roth, Nikolaj
name: Beyer, Jonas
name: Fischer, Karl F. F.
name: Xia, Kaiyang
name: Zhu, Tiejun
name: Iversen, Bo Brummerstedt
Publisher: name: arXiv
Year: 2021
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Although crystalline solids are characterized by their periodic structures, some are only periodic on average and deviate on a local scale. Distinct local orderings can exist with identical periodic structures making their differences hidden to normal diffraction methods. Using x-ray scattering we investigate the thermoelectric half-Heusler, Nb1-xCoSb, with high vacancy concentrations, where signs of local order have been attributed to differences in stoichiometry. We show that the composition is actually always very close to x = 1/6 irrespective of nominal sample composition, and that the synthesis method controls the local order. The vacancy distribution is shown to follow a vacancy repulsion model, and local structural relaxations around the vacancies are characterized. Control over the local structure provides a new frontier for tuning material properties.
Spectral Modeling of Turbulent Flows and the Role of Helicity
Creators: name: Baerenzung, Julien
name: Politano, Helene
name: Ponty, Yannick
name: Pouquet, Annick
Publisher: name: arXiv
Year: 2007
Subjects: subject: Fluid Dynamics (physics.flu-dyn)
subject: Classical Physics (physics.class-ph)
subject: FOS: Physical sciences

description: We present a new version of a dynamical spectral model for Large Eddy Simulation based on the Eddy Damped Quasi Normal Markovian approximation \cite{sao,chollet_lesieur}. Three distinct modifications are implemented and tested. On the one hand, whereas in current approaches, a Kolmogorov-like energy spectrum is usually assumed in order to evaluate the nonlocal transfer, in our method the energy spectrum of the subgrid scales adapts itself dynamically to the large-scale resolved spectrum; this first modification allows in particular for a better treatment of transient phases and instabilities, as shown on one specific example. Moreover, the model takes into account the phase relationships of the small-scales, embodied for example in strong localized structures such as vortex filaments. To that effect, phase information is implemented in the treatment of the so-called eddy noise in the closure model. Finally, we also consider the role that helical small scales may play in the evaluation of the transfer of energy and helicity, the two invariants of the primitive equations in the inviscid case; this leads as well to intrinsic variations in the development of helicity spectra. Therefore, our model allows for simulations of flows for a variety of circumstances and a priori at any given Reynolds number. Comparisons with Direct Numerical Simulations of the three-dimensional Navier-Stokes equation are performed on fluids driven by an ABC (Beltrami) flow which is a prototype of fully helical flows. Good agreements are obtained for physical and spectral behavior of the large scales.
Coimbra Psychology in Brazilian Land
Creators: name: Massimi, Marina
Publisher: name: Zenodo
Year: 2021

description: The Coimbra Jesuit Course treaties were part of the baggage brought to Brazil by the Jesuit missionaries who came from 1549 in the new Portuguese colony, then called Terra de Santa Cruz (Land of the Holy Cross). The Jesuits acted in Brazil in the long period beginning in 1549 and ending in 1760 with the expulsion by decree of the Portuguese Minister Sebastião José de Carvalho e Melo. The mission of the Jesuits was to catechise the indigenous people and to assist the Christian settlers. They pushed the mixture in the perspective of what they understood as the Christian social body of the Colony, where all social and racial components were inserted and united by a vision of the Christian world. For these purposes, education and the establishment of schools for the study of the children of Indians and Portuguese settlers has become one of the main instruments. Knowledge of the human otherness they encountered was also fundamental. The worldview and social practices of the natives who populated the Brazilian territory, belonging to different ethnicities, were immensely different from the cultural models and social modes of the religious coming from Europe. For this, they needed criteria to guide the process of knowing this new anthropological reality. At the same time, life in the new worlds implied a profound revision of one's own way of being, of the habits and the ordinary resources learned in their socio-cultural tradition of origin. So, the Jesuits used the psychological knowledge of their own cultural universe (Massimi 2021a) not only for the knowledge of themselves, but also for the understanding of the Indians with whom they lived. This was particularly challenging given the anthropological and cultural diversity between the world of missionaries and that of natives. The Jesuits will try to understand the Indians from the cultural categories provided by their world of origin, the same applied to the knowledge of their own experience. The use of these categories before the other is guided by the observation of behavioural signs. In this effort, they contributed to the constitution of knowledge and practices aimed at the knowledge and care of the person according to the demands of individual and social life. The knowledge of the scientia de anima elaborated in the Coimbra Jesuit Course treaties has received my attention, and this article must be read taking into consideration at I have written there (Massimi 2021a).
Gravitational Duality Transformations on (A)dS4
Creators: name: Leigh, Robert G.
name: Petkou, Anastasios C.
Publisher: name: arXiv
Year: 2007
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We discuss the implementation of electric-magnetic duality transformations in four-dimensional gravity linearized around Minkowski or (A)dS4 backgrounds. In the presence of a cosmological constant duality generically modifies the Hamiltonian, nevertheless the bulk dynamics is unchanged. We pay particular attention to the boundary terms generated by the duality transformations and discuss their implications for holography.
description: 14 pages, v2: minor clarifications, references added, v3: more references added
Multi-messenger Detection Rates and distributions of Binary Neutron Star Mergers and Their Cosmological Implications
Creators: name: Yu, Jiming
name: Song, Haoran
name: Ai, Shunke
name: Gao, He
name: Wang, Fayin
name: Wang, Yu
name: Lu, Youjun
name: Fang, Wenjuan
name: Zhao, Wen
Publisher: name: arXiv
Year: 2021
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: The gravitational-wave (GW) events, produced by the coalescence of binary neutron-stars (BNS), can be treated as the standard sirens to probe the expansion history of the Universe, if their redshifts could be determined from the electromagnetic observations. For the high-redshift ($z\gtrsim 0.1$) events, the short $γ$-ray bursts (sGRBs) and the afterglows are always considered as the primary electromagnetic counterparts. In this paper, by investigating various models of sGRBs and afterglows, we discuss the rates and distributions of BNS mergers' multi-messenger observations with GW detectors in second-generation (2G), 2.5G, 3G era with the detectable sGRBs and the afterglows. For instance, for Cosmic Explorer GW detector, the rate is about (300-3500) per year with GECAM-like detector for $γ$-ray emissions and LSST/WFST detector for optical afterglows. In addition, we find these events have the redshifts $z\lesssim 2$ and the inclination angles $ι\lesssim 20^{\circ}$. These results justify the rough estimation in previous works. Considering these events as standard sirens to constrain the equation-of-state parameters of dark energy $w_{0}$ and $w_{a}$, we obtain the potential constraints of $Δw_{0}\simeq 0.02-0.05$ and $Δw_{a}\simeq 0.1-0.4$.
description: 14 pages, 9 figures, accepted for publication in ApJ
Scuba Search : when selection meets innovation
Creators: name: Verel, Sébastien
name: Collard, Philippe
name: Clergue, Manuel
Publisher: name: arXiv
Year: 2007
Subjects: subject: Neural and Evolutionary Computing (cs.NE)
subject: FOS: Computer and information sciences

description: We proposed a new search heuristic using the scuba diving metaphor. This approach is based on the concept of evolvability and tends to exploit neutrality in fitness landscape. Despite the fact that natural evolution does not directly select for evolvability, the basic idea behind the scuba search heuristic is to explicitly push the evolvability to increase. The search process switches between two phases: Conquest-of-the-Waters and Invasion-of-the-Land. A comparative study of the new algorithm and standard local search heuristics on the NKq-landscapes has shown advantage and limit of the scuba search. To enlighten qualitative differences between neutral search processes, the space is changed into a connected graph to visualize the pathways that the search is likely to follow.
Regulation of in vitro immunoglobulin secretion in healthy individuals and multiple sclerosis patients
Creators: name: O'Gorman, Maurice R. G.
Publisher: name: University of British Columbia
Year: 2010

description: Mitogen driven differentiation of mononuclear cells is a useful model of antibody synthesis and secretion in humans. We have studied Pokeweed mitogen (PWM) induced immunoglobulin secretion in vitro in both healthy individuals and multiple sclerosis patients. Within the healthy population we have identified individuals who consistently secrete low levels of IgG in response to PWM and others who secrete very high levels. The underlying mechanisms involved in low response are not well understood. We have observed that the peripheral blood mononuclear cells (PBMC) obtained from low responders differ from those obtained from high responders in each of the following: Their T-helper cell subset contains a higher ratio of T suppressor-inducer cells over T helper-inducer cells; their PBMC contain a higher level of in vivo radiation-sensitive suppression; their PBMC generate a lower autologous mixed lymphocyte response; and their B lymphocytes secrete lower amounts of IgG when mixed with heterologous high responder T helper cells. These results suggest the response involves the interactions between T helper cell subsets, T suppressor cells and B lymphocytes and that the level of response is the sum of the contribution of each subset. PWM induced immunoglobulin secretion was measured in multiple sclerosis patients during different phases of clinical disease activity. Relapsing-remitting multiple sclerosis patients in early relapse secreted less immunoglobulin than patients with prolonged relapse, suggesting that immune function varies with clinical disease activity. Testing the level of PWM induced immunoglobulin secretion in relapsing-remitting multiple sclerosis patients during the clinically stable phase suggested that those patients who secreted high levels of IgG in response to PWM were more likely to suffer a clinical relapse within 6 months than those patients who secreted a low amount. Chronic progressive multiple sclerosis patients secreted higher amounts of immunoglobulin in this assay than healthy control individuals. This group of multiple sclerosis patients also had; (i) reduced Concanavalin A (Con A) suppressor cell activity measured both by the ability to suppress a/ Con A induced proliferation and b/ PWM induced IgG secretion in heterologous cell cultures and; (ii) reduced percentages of T cells expressing T suppressor and T suppressor-inducer markers. The treatment of chronic progressive multiple sclerosis patients in vivo with lymphoblastoid interferon resulted in a dramatic reduction in level of PWM induced immunoglobulin secretion without alteration in Concanavalin A induced suppression or in the percentages of T cells expressing subset specific markers. The PWM induced IgG secretion assay is a valuable technique for investigating the regulation of humoral immunity in both health and disease.
Effect of transition-metal elements on the electronic properties of quasicrystals and complex aluminides
Creators: name: De Laissardière, Guy Trambly
name: Mayou, Didier
Publisher: name: arXiv
Year: 2007
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: In this paper, we briefly present our work on the role of transition-metal element in electronic structure and transport properties of quasicrystals and related complex phases. Several Parts of these works have been done or initiated in collaboration with Prof. T. Fujiwara.
Another view of the Gaussian algorithm
Creators: name: Akhavi, Ali
name: Moreira, Céline
Publisher: name: arXiv
Year: 2007
Subjects: subject: Data Structures and Algorithms (cs.DS)
subject: Discrete Mathematics (cs.DM)
subject: FOS: Computer and information sciences

description: We introduce here a rewrite system in the group of unimodular matrices, \emph{i.e.}, matrices with integer entries and with determinant equal to $\pm 1$. We use this rewrite system to precisely characterize the mechanism of the Gaussian algorithm, that finds shortest vectors in a two--dimensional lattice given by any basis. Putting together the algorithmic of lattice reduction and the rewrite system theory, we propose a new worst--case analysis of the Gaussian algorithm. There is already an optimal worst--case bound for some variant of the Gaussian algorithm due to Vallée \cite {ValGaussRevisit}. She used essentially geometric considerations. Our analysis generalizes her result to the case of the usual Gaussian algorithm. An interesting point in our work is its possible (but not easy) generalization to the same problem in higher dimensions, in order to exhibit a tight upper-bound for the number of iterations of LLL--like reduction algorithms in the worst case. Moreover, our method seems to work for analyzing other families of algorithms. As an illustration, the analysis of sorting algorithms are briefly developed in the last section of the paper.
Non-resonant and Resonant X-ray Scattering Studies on Multiferroic TbMn2O5
Creators: name: Koo, J.
name: Song, C.
name: Ji, S.
name: Lee, J. -S.
name: Park, J.
name: Jang, T. -H.
name: Yang, C. -H.
name: Park, J. -H.
name: Jeong, Y. H.
name: Lee, K. -B.
name: Koo, T. Y.
name: Park, Y. J.
name: Kim, J. -Y.
name: Wemeille, D.
name: Goldman, A. I.
name: Srajer, G.
name: Park, S.
name: Cheong, S. -W.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Comprehensive x-ray scattering studies, including resonant scattering at Mn L-edge, Tb L- and M-edges, were performed on single crystals of TbMn2O5. X-ray intensities were observed at a forbidden Bragg position in the ferroelectric phases, in addition to the lattice and the magnetic modulation peaks. Temperature dependences of their intensities and the relation between the modulation wave vectors provide direct evidences of exchange striction induced ferroelectricity. Resonant x-ray scattering results demonstrate the presence of multiple magnetic orders by exhibiting their different temperature dependences. The commensurate-to-incommensurate phase transition around 24 K is attributed to discommensuration through phase slipping of the magnetic orders in spin frustrated geometries. We proposed that the low temperature incommensurate phase consists of the commensurate magnetic domains separated by anti-phase domain walls which reduce spontaneous polarizations abruptly at the transition.
description: 4 pages, 4 figures
title: Neologica. 2007, n° 1
title: Revue internationale de néologie
titleType: Subtitle
Creators: name: (:Unap)
Publisher: name: Classiques Garnier
Year: 2010
Subjects: fr

description: Neologica, revue internationale de néologie fondée et dirigée par John Humbley et Jean-François Sablayrolles, vise à combler une lacune dans le domaine des sciences du langage, qui ne s'intéressent qu'épisodiquement ou indirectement à ce phénomène fondamental dans toutes les langues qu'est la néologie (aussi bien les créations formelles que les innovations dans l'emploi des unités lexicales: «mots» et séquences figées). Révélateurs du dynamisme des langues, les néologismes entretiennent des relations avec toutes les branches des sciences du langage. Leur étude est donc vaste et doit être conduite sous de multiples angles d'attaque, qui fourniront autant de thèmes pour les numéros à venir. Chaque numéro comprend en effet une partie thématique et une partie varia ainsi que des rubriques comme la bibliographie de la néologie, des comptes rendus, etc.
description: Neologica, an international review of neology, aims to fill a gap in modern language sciences, which take only episodic and indirect interest in a phenomenon which is fundamental in all languages.
Equation of motion for dislocations with inertial effects
Creators: name: Pillon, L.
name: Denoual, C.
name: Pellegrini, Y. -P.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: An approximate equation of motion is proposed for screw and edge dislocations, which accounts for retardation and for relativistic effects in the subsonic range. Good quantitative agreement is found, in accelerated or in decelerated regimes, with numerical results of a more fundamental nature.
description: 6 pages, 4 figures, LaTeX