cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Understanding Degeneracy of Two-Point Correlation Functions via Debye Random Media
Creators: name: Skolnick, Murray
name: Torquato, Salvatore
Publisher: name: arXiv
Year: 2021
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: Materials Science (cond-mat.mtrl-sci)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: It is well-known that the degeneracy of two-phase microstructures with the same volume fraction and two-point correlation function $S_2(\mathbf{r})$ is generally infinite. To elucidate the degeneracy problem explicitly, we examine Debye random media, which are entirely defined by a purely exponentially decaying two-point correlation function $S_2(r)$. In this work, we consider three different classes of Debye random media. First, we generate the "most probable" class using the Yeong-Torquato construction algorithm [Yeong and Torquato, Phys. Rev. E, 57, 495 (1998)]. A second class of Debye random media is obtained by demonstrating that the corresponding two-point correlation functions are effectively realized in the first three space dimensions by certain models of overlapping, polydisperse spheres. A third class is obtained by using the Yeong-Torquato algorithm to construct Debye random media that are constrained to have an unusual prescribed pore-size probability density function. We structurally discriminate these three classes of Debye random media from one another by ascertaining their other statistical descriptors, including the pore-size, surface correlation, chord-length probability density, and lineal-path functions. We also compare and contrast the percolation thresholds as well as the diffusion and fluid transport properties of these degenerate Debye random media. We find that these three classes of Debye random media are generally distinguished by the aforementioned descriptors and their microstructures are also visually distinct from one another. Our work further confirms the well-known fact that scattering information is insufficient to determine the effective physical properties of two-phase media. Additionally, our findings demonstrate the importance of the other two-point descriptors considered here in the design of materials with a spectrum of physical properties.
Gertraud Marinelli-König, Die böhmischen Länder in den Wiener Zeitschriften und Almanachen des Vormärz (1805-1848). Tschechische nationale Wiedergeburt, Kultur- und Landeskunde von Böhmen, Mähren und Schlesien, kulturelle Beziehungen zu Wien
Creators: name: Kessler, Wolfgang
Publisher: name: Zeitschrift für Ostmitteleuropa-Forschung
Year: 2015

description: Zeitschrift für Ostmitteleuropa-Forschung, Bd. 64 Nr. 2 (2015): „Aufbruch zur Demokratie?“ Aspekte einer Demokratiegeschichte Ostmitteleuropas (1918-1939)
Chrysotila carterae R. A. Andersen, J. I. Kim, Tittley & H. S. Yoon 2014
Creators: name: Ignatenko, Marina
name: Yatsenko-Stepanova, Tatyana
Publisher: name: Zenodo
Year: 2023
Subjects: Biodiversity
Taxonomy
Chromista
Haptophyta
Coccolithophyceae
Isochrysidales
Isochrysidaceae
Chrysotila
Chrysotila carterae

description: Chrysotila carterae (Braarud & Fagerland) R.A. Andersen, J.I. Kim, Tittley & H.S. Yoon (Figs. 8, 9)
≡ Pleurochrysis carterae (Braarud & Fagerland) T. Christensen (1978: 68)
A disc-shaped coccolith (placolith), composed of two interlocking cycles of crystal units, V and R units, which represent the calcite crystals with subvertical (V units) and subradial (R units) orientations of the c-axis relative to the base plate; 2.2–6 × 1.4–1.7 µm in size.
This species was recorded from Zhetykol Lake and Aschisaysky Рond (see Table 2).
description: Published as part of Ignatenko, Marina & Yatsenko-Stepanova, Tatyana, 2023, Coccolithophores in the algal flora from South Urals (Russia) with the description of a new Hymenomonas species, pp. 55-64 in Phytotaxa 609 (1) on pages 59-60, DOI: 10.11646/phytotaxa.609.1.5, http://zenodo.org/record/8254620
Future Directions in Parity Violation: From Quarks to the Cosmos
Creators: name: Ramsey-Musolf, Michael J.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: I discuss the prospects for future studies of parity-violating (PV) interactions at low energies and the insights they might provide about open questions in the Standard Model as well as physics that lies beyond it. I cover four types of parity-violating observables: PV electron scattering; PV hadronic interactions; PV correlations in weak decays; and searches for the permanent electric dipole moments of quantum systems.
description: Talk given at PAVI 06 workshop on parity-violating interactions, Milos, Greece (May, 2006); 10 pages
A scaled local gate controller for optically addressed qubits
Creators: name: Zhang, Bichen
name: Peng, Pai
name: Paul, Aditya
name: Thompson, Jeff D.
Publisher: name: arXiv
Year: 2023
Subjects: subject: Atomic Physics (physics.atom-ph)
subject: Optics (physics.optics)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Scalable classical controllers are a key component of future fault-tolerant quantum computers. Neutral atom quantum computers leverage commercially available optoelectronic devices for generating large-scale tweezer arrays and performing parallel readout, but implementing massively parallel, locally-addressed gate operations is an open challenge. In this work, we demonstrate an optical modulator system based on off-the-shelf components, which can generate a two-dimensional array of over 10,000 focused spots with uniform frequency and amplitude, and switching them on and off individually in arbitrary configurations at rates of up to 43 kHz. Through careful control of aberrations, the modulator achieves an extinction ratio of 46 dB, and nearest-neighbor crosstalk of $-44$ dB with a beam spacing of 4.6 waists. The underlying components can operate at wavelengths from the UV to the NIR, and sustain high laser intensities. This approach is suitable for local addressing of gates with low cross-talk error rates in any optically addressed qubit platform, including neutral atoms, trapped ions, or solid-state atomic defects.
The large deviation approach to statistical mechanics
Creators: name: Touchette, Hugo
Publisher: name: arXiv
Year: 2008
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: The theory of large deviations is concerned with the exponential decay of probabilities of large fluctuations in random systems. These probabilities are important in many fields of study, including statistics, finance, and engineering, as they often yield valuable information about the large fluctuations of a random system around its most probable state or trajectory. In the context of equilibrium statistical mechanics, the theory of large deviations provides exponential-order estimates of probabilities that refine and generalize Einstein's theory of fluctuations. This review explores this and other connections between large deviation theory and statistical mechanics, in an effort to show that the mathematical language of statistical mechanics is the language of large deviation theory. The first part of the review presents the basics of large deviation theory, and works out many of its classical applications related to sums of random variables and Markov processes. The second part goes through many problems and results of statistical mechanics, and shows how these can be formulated and derived within the context of large deviation theory. The problems and results treated cover a wide range of physical systems, including equilibrium many-particle systems, noise-perturbed dynamics, nonequilibrium systems, as well as multifractals, disordered systems, and chaotic systems. This review also covers many fundamental aspects of statistical mechanics, such as the derivation of variational principles characterizing equilibrium and nonequilibrium states, the breaking of the Legendre transform for nonconcave entropies, and the characterization of nonequilibrium fluctuations through fluctuation relations.
description: v1: 89 pages, 18 figures, pdflatex. v2: 95 pages, 20 figures, text, figures and appendices added, many references cut, close to published version
Ryszarda Sznejer, Moje Matki. Droga poszukiwania rodziny
Creators: name: Röger, Maren
Publisher: name: Zeitschrift für Ostmitteleuropa-Forschung
Year: 2015

description: Zeitschrift für Ostmitteleuropa-Forschung, Bd. 64 Nr. 3 (2015): Transpolonität? Gesellschaftliche Eliten in den polnischen Gebieten um 1900 jenseits der Nationalgeschichte(n)
Besatzung, Kollaboration, Holocaust. Neue Studien zur Verfolgung und Ermordung der europäischen Juden
Creators: name: Friedrich, Klaus-Peter
Publisher: name: Zeitschrift für Ostmitteleuropa-Forschung
Year: 2010

description: Zeitschrift für Ostmitteleuropa-Forschung, Bd. 59 Nr. 4 (2010): 1989 als mediales Ereignis
All-Optical Control of Magnetization in Quantum-Confined Ultrathin Magnetic Metals
Creators: name: Zanjani, Saeedeh Mokarian
name: Naseem, Muhammad Tahir
name: Müstecaplıoğlu, Özgür
name: Onbaşlı, Mehmet Cengiz
Publisher: name: arXiv
Year: 2021
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: All-optical control dynamics of magnetization in sub-10 nm metallic thin films are investigated, as these films with quantum confinement undergo unique interactions with femtosecond laser pulses. Our theoretical derivations based on the free electron model show that the density of states at Fermi level (DOS_F) and electron-phonon coupling coefficients (G_ep) in ultrathin metals have very high sensitivity to film thickness within a few Angstroms. As DOS_F and G_ep depend on thickness, we show that completely different magnetization dynamics characteristics emerge compared with bulk metals. Our model suggests highly-efficient energy transfer from fs laser photons to spin waves due to minimal energy absorption by phonon. This sensitivity to thickness and efficient energy transfer offers an opportunity to obtain ultrafast on-chip magnetization dynamics.
description: 21 pages, 12 pages of main manuscript, 4 main manuscript figures, 9 pages of supplementary information, 8 supplementary figures
$^{64}$Ni+$^{64}$Ni fusion reaction calculated with the density-constrained time-dependent Hartree-Fock formalism
Creators: name: Umar, A. S.
name: Oberacker, V. E.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: We study fusion reactions of the $^{64}$Ni+$^{64}$Ni system using the density-constrained time-dependent Hartree-Fock (TDHF) formalism. In this formalism the fusion barriers are directly obtained from TDHF dynamics. In addition, we incorporate the entrance channel alignments of the slightly deformed (oblate) $^{64}$Ni nuclei due to dynamical Coulomb excitation. We show that alignment leads to a fusion barrier distribution and alters the naive picture for defining which energies are actually sub-barrier. We also show that core polarization effects could play a significant role in fusion cross section calculations.
description: 7 pages, 6 figures
A locally finite model for gravity
Creators: name: Hooft, Gerard 't
Publisher: name: arXiv
Year: 2008
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: Matter interacting classically with gravity in 3+1 dimensions usually gives rise to a continuum of degrees of freedom, so that, in any attempt to quantize the theory, ultraviolet divergences are nearly inevitable. Here, we investigate matter of a form that only displays a finite number of degrees of freedom in compact sections of space-time. In finite domains, one has only exact, analytic solutions. This is achieved by limiting ourselves to straight pieces of string, surrounded by locally flat sections of space-time. Globally, however, the model is not finite, because solutions tend to generate infinite fractals. The model is not (yet) quantized, but could serve as an interesting setting for analytical approaches to classical general relativity, as well as a possible stepping stone for quantum models. Details of its properties are explained, but some problems remain unsolved, such as a complete description of the most violent interactions, which can become quite complex.
description: 26 pages, 9 figures
XMM-Newton X-ray and Optical Monitor far UV observations of NGC 7070A and ESO 2400100 shell galaxies
Creators: name: Trinchieri, G.
name: Rampazzo, R.
name: Chiosi, C.
name: Grutzbauch, R.
name: Marino, A.
name: Tantalo, R.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We present XMM-Newton X-ray observations of two shell galaxies, NGC 7070A and ESO 2400100, and far UV observations obtained with the Optical Monitor for these and for an additional shell galaxy, NGC 474, for which we also have near and far UV data from GALEX. We aim at gaining insight on the overall evolution traced by their star formation history and by their hot gas content. The X-ray and the far UV data are used to derive their X-ray spatial and spectral characteristics and their UV luminosity profiles. We use models developed ad hoc to investigate the age of the last episode of star formation from the (UV - optical) colors and line strength indices. The X-ray spatial and spectral analysis show significant differences in the two objects. A low luminosity nuclear source is the dominant component in NGC 7070A log L_X=41.7 erg s^{-1} in the 2-10 keV band. In ESO 2400100, the X-ray emission is due to a low temperature plasma with a contribution from the collective emission of individual sources. In the Optical Monitor image ESO 2400100 shows a double nucleus, one bluer than the other. This probably results from a very recent star formation event in the northern nuclear region. The extension of the UV emission is consistent with the optical extent for all galaxies, at different degrees of significance in different filters. The presence of the double nucleus, corroborated by the (UV - optical) colors and line strength indices analysis, suggests that ESO 2400100 is accreting a faint companion. We explore the evolution of the X-ray luminosity during accretion processes with time. We discuss the link between the presence of gas and age, since gas is detected either before coalescence or several Gyr (>3) after (Abridged).
description: 17 pages, 11 figures, accepted for publication in A&A
Optical Transients from Fast Radio Bursts Heating Companion Stars in Close Binary Systems
Creators: name: Yang, Yuan-Pei
Publisher: name: arXiv
Year: 2021
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: Fast radio bursts (FRBs) are bright radio transients with short durations and extremely high brightness temperatures, and their physical origins are still unknown. Recently, a repeating source, FRB 20200120E, was found in a globular cluster in the very nearby M81 galaxy. The associated globular cluster has an age of $\sim9.13~{\rm Gyr}$, and hosts an old population of stars. In this work, we consider that an FRB source is in a close binary system with a low-mass main sequence star as its companion. Due to the large burst energy of the FRB, when the companion star stops the FRB, its surface would be heated by the radiation-induced shock, and make re-emission. For a binary system with a solar-like companion star and an orbital period of a few days, we find that the re-emission is mainly at optical band, and with delays of a few seconds after the FRB. Its luminosity is several times larger than the solar luminosity, and the duration is about hundreds of seconds. Such a transient might be observable in the future multiwavelength follow-up observation for Galactic FRB sources.
description: 8 pages, 2 figures, accepted for publication in ApJ
Ultra-Thin All-Epitaxial Plasmonic Detectors
Creators: name: Nordin, Leland
name: Petluru, Priyanka
name: Kamboj, Abhilasha
name: Muhowski, Aaron J.
name: Wasserman, Daniel
Publisher: name: arXiv
Year: 2021
Subjects: subject: Optics (physics.optics)
subject: Instrumentation and Detectors (physics.ins-det)
subject: FOS: Physical sciences

description: We present an infrared photodetector leveraging an all-epitaxial device architecture consisting of a 'designer' plasmonic metal integrated with a quantum-engineered detector structure, all in a mature III-V semiconductor material system. Incident light is coupled into surface plasmon-polariton modes at the detector/'designer' metal interface, and the strong confinement of these modes allows for a sub-diffractive ($\sim λ_0 / 33$) detector absorber layer thickness, effectively decoupling the detector's absorption efficiency and dark current. We demonstrate high-performance detectors operating at non-cryogenic temperatures (T = 195 K), without sacrificing external quantum efficiency, and superior to well established and commercially-available detectors. This work provides a practical and scalable plasmonic optoelectronic device architecture with real world mid-infrared applications.
Armin Laussegger u.a. (Hrsg.), Österreich. Tschechien. Unser 20. Jahrhundert. Begleitband zum wissenschaftlichen Rahmenprogramm der Niederösterreichischen Landesausstellung 2009 „Österreich. Tschechien. Geteilt - getrennt - vereint“
Creators: name: Poláčková, Zuzana
Publisher: name: Zeitschrift für Ostmitteleuropa-Forschung
Year: 2012

description: Zeitschrift für Ostmitteleuropa-Forschung, Bd. 61 Nr. 1 (2012)
Nationale Wahrnehmungen und ihre Stereotypisierung. Beiträge zur Historischen Stereotypenforschung
Creators: name: Joachimsthaler, Jürgen
Publisher: name: Zeitschrift für Ostmitteleuropa-Forschung
Year: 2010

description: Zeitschrift für Ostmitteleuropa-Forschung, Bd. 59 Nr. 4 (2010): 1989 als mediales Ereignis
Chrysotila roscoffensis R. A. Andersen, J. I. Kim, Tittley & H. S. Yoon 2015
Creators: name: Ignatenko, Marina
name: Yatsenko-Stepanova, Tatyana
Publisher: name: Zenodo
Year: 2023
Subjects: Biodiversity
Taxonomy
Chromista
Haptophyta
Coccolithophyceae
Isochrysidales
Isochrysidaceae
Chrysotila
Chrysotila roscoffensis

description: Chrysotila roscoffensis (P.A. Dangeard) R.A. Andersen, J.I. Kim, Tittley & H.S. Yoon (Figs. 10–14)
≡ Pleurochrysis roscoffensis (P.A. Dangeard) Fresnel & Billard (1991: 77)
A disc-shaped coccolith (placolith), that consists of a central vertical tube bounded on each side by shield, there are small nodes on the distal shield of the placolith and within the tube, extending into the central area; 2.46–2.85 × 1.74–1.98 µm in size.
This species was recorded from Zhetykol Lake and Aschisaysky Рond (see Table 2).
In this study, we found coccoliths in freshwater (Fig. 15), which we could not correlate with any of the described species. We described their as Hymenomonas uralensis sp. nov.
description: Published as part of Ignatenko, Marina & Yatsenko-Stepanova, Tatyana, 2023, Coccolithophores in the algal flora from South Urals (Russia) with the description of a new Hymenomonas species, pp. 55-64 in Phytotaxa 609 (1) on page 60, DOI: 10.11646/phytotaxa.609.1.5, http://zenodo.org/record/8254620
Flexible least squares for temporal data mining and statistical arbitrage
Creators: name: Montana, Giovanni
name: Triantafyllopoulos, Kostas
name: Tsagaris, Theodoros
Publisher: name: arXiv
Year: 2007
Subjects: subject: Statistical Finance (q-fin.ST)
subject: Applications (stat.AP)
subject: Methodology (stat.ME)
subject: FOS: Economics and business
subject: FOS: Computer and information sciences

description: A number of recent emerging applications call for studying data streams, potentially infinite flows of information updated in real-time. When multiple co-evolving data streams are observed, an important task is to determine how these streams depend on each other, accounting for dynamic dependence patterns without imposing any restrictive probabilistic law governing this dependence. In this paper we argue that flexible least squares (FLS), a penalized version of ordinary least squares that accommodates for time-varying regression coefficients, can be deployed successfully in this context. Our motivating application is statistical arbitrage, an investment strategy that exploits patterns detected in financial data streams. We demonstrate that FLS is algebraically equivalent to the well-known Kalman filter equations, and take advantage of this equivalence to gain a better understanding of FLS and suggest a more efficient algorithm. Promising experimental results obtained from a FLS-based algorithmic trading system for the S&P 500 Futures Index are reported.
description: 28 pages, 6 figures, submitted to journal
Inge Bily u.a., Sächsisch-magdeburgisches Recht in Polen. Untersuchungen zur Geschichte des Rechts und seiner Sprache
Creators: name: Mühle, Eduard
Publisher: name: Zeitschrift für Ostmitteleuropa-Forschung
Year: 2013

description: Zeitschrift für Ostmitteleuropa-Forschung, Bd. 62 Nr. 4 (2013)
Intrinsic alignments of galaxies and their effects on weak lensing detections of mass concentrations
Creators: name: Fan, Z. H.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: In this paper we investigate the influence of the intrinsic alignment of background galaxies on weak lensing detections of mass concentrations. Specifically, we analyze the number counts of false peaks resulting from intrinsic ellipticities in lensing convergence maps. Including the alignment of source galaxies, the full noise variance from intrinsic ellipticites in convergence $κ$-maps can be written as $σ^2_0=σ^2_{0ran}+σ^2_{0corr}$, where $σ^2_{0ran}$ is the noise contributed from randomly oriented source galaxies and $σ^2_{0corr}$ denotes the additional noise from intrinsic alignments. However, it is observationally difficult to measure $σ^2_{0corr}$ and usually only $σ^2_{0ran}$ can be estimated in weak lensing observations. Thus the observational signal-to-noise ratio is often defined with respect to $σ_{0ran}$, which is denoted as $ν_{ran}$ in this paper. The true signal-to-noise ratio $ν$ in terms of $σ_0$ is then $ν=ν_{ran}/(1+σ^2_{0corr}/σ^2_{0ran})^{1/2}$. Given a detection threshold on $ν_{ran}$, a larger value of $σ^2_{0corr}/σ^2_{0ran}$ leads to a lower threshold on $ν$ and therefore a larger expected number of false peaks. With $σ^2_{0corr}/σ^2_{0ran}\sim 10%$, the average number of false peaks with $ν_{ran}\ge 3.5$ nearly doubles compared to that without considering the alignment, and for $ν_{ran}\ge 5$, the number is tripled. As a result, the efficiency of weak lensing cluster detection degrades significantly. (Abridged)
description: ApJ in press
Limits of dispersoid size and number density in oxide dispersion strengthened alloys fabricated with powder bed fusion-laser beam
Creators: name: Wassermann, Nathan A.
name: Li, Yongchang
name: Myers, Alexander J.
name: Kantzos, Christopher A.
name: Smith, Timothy M.
name: Beuth, Jack L.
name: Malen, Jonathan A.
name: Shao, Lin
name: McGaughey, Alan J. H.
name: Narra, Sneha P.
Publisher: name: arXiv
Year: 2023
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Previous work on additively-manufactured oxide dispersion strengthened alloys focused on experimental approaches, resulting in larger dispersoid sizes and lower number densities than can be achieved with conventional powder metallurgy. To improve the as-fabricated microstructure, this work integrates experiments with a thermodynamic and kinetic modeling framework to probe the limits of the dispersoid sizes and number densities that can be achieved with powder bed fusion-laser beam. Bulk samples of a Ni-20Cr $+$ 1 wt.% Y$_2$O$_3$ alloy are fabricated using a range of laser power and scanning velocity combinations. Scanning transmission electron microscopy characterization is performed to quantify the dispersoid size distributions across the processing space. The smallest mean dispersoid diameter (29 nm) is observed at 300 W and 1200 mm/s, with a number density of 1.0$\times$10$^{20}$ m$^{-3}$. The largest mean diameter (72 nm) is observed at 200 W and 200 mm/s, with a number density of 1.5$\times$10$^{19}$ m$^{-3}$. Scanning electron microscopy suggests that a considerable fraction of the oxide added to the feedstock is lost during processing, due to oxide agglomeration and the ejection of oxide-rich spatter from the melt pool. After accounting for these losses, the model predictions for the dispersoid diameter and number density align with the experimental trends. The results suggest that the mechanism that limits the final number density is collision coarsening of dispersoids in the melt pool. The modeling framework is leveraged to propose processing strategies to limit dispersoid size and increase number density.
description: Main text: 37 pages, 20 figures
Novel structural features of CDK inhibition revealed by an ab initio computational method combined with dynamic simulations
Creators: name: Heady, Lucy
name: Fernandez-Serra, Marivi
name: Mancera, Ricardo L.
name: Joyce, Sian
name: Venkitaraman, Ashok R.
name: Artacho, Emilio
name: Skylaris, Chris-Kriton
name: Ciacchi, Lucio Colombi
name: Payne, Mike C.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Biological Physics (physics.bio-ph)
subject: Computational Physics (physics.comp-ph)
subject: Quantitative Methods (q-bio.QM)
subject: FOS: Physical sciences
subject: FOS: Biological sciences

description: The rational development of specific inhibitors for the ~500 protein kinases encoded in the human genome is impeded by a poor understanding of the structural basis for the activity and selectivity of small molecules that compete for ATP binding. Combining classical dynamic simulations with a novel ab initio computational approach linear-scalable to molecular interactions involving thousands of atoms, we have investigated the binding of five distinct inhibitors to the cyclin-dependent kinase CDK2. We report here that polarization and dynamic hydrogen bonding effects, so far undetected by crystallography, affect both their activity and selectivity. The effects arise from the specific solvation patterns of water molecules in the ATP binding pocket or the intermittent formation of hydrogen bonds during the dynamics of CDK/inhibitor interactions and explain the unexpectedly high potency of certain inhibitors such as 3-(3H-imidazol-4-ylmethylene)-5-methoxy-1,3-dihydro-indol-2-one (SU9516). The Lys89 residue in the ATP-binding pocket of CDK2 is observed to form temporary hydrogen bonds with the three most potent inhibitors. This residue is replaced in CDK4 by Thr89, whose shorter side-chain cannot form similar bonds, explaining the relative selectivity of the inhibitors for CDK2. Our results provide a generally applicable computational method for the analysis of biomolecular structures and reveal hitherto unrecognized features of the interaction between protein kinases and their inhibitors
Experimental study of the flow structure stability on the bubble surface
Creators: name: Shmyrova, Anastasia
name: Shmyrov, Andrey
Publisher: name: arXiv
Year: 2021
Subjects: subject: Fluid Dynamics (physics.flu-dyn)
subject: Chemical Physics (physics.chem-ph)
subject: FOS: Physical sciences

description: The results of the flow structure visualization experiments conducted on the surface of a single bubble streamlined by uniform flow are presented. It is shown that, at certain critical values for bubble size, flow velocity, and contamination level, the axial symmetry of the surface flow loses its stability in a threshold manner, and the first instability mode in the form of two vortices appears. Below the threshold, the stationary flow on the bubble surface is impossible. The experimental results indicate that the assumption about the axial symmetry of the motion on the bubble surface containing surfactants, which is used in most theoretical and numerical studies, is invalid. Analysis of the results has revealed the most likely reason for the spiral form of the trajectory in the problem of a small rising bubble in the surrounding fluid. For the surfactant-free surface realized in the experiments with isopropyl alcohol, the rising trajectory was a straight line, and no vortex structures were observed on the bubble surface. In the experiments with water, a spiral rising trajectory was observed, and the first instability mode was formed on the bubble surface.
Spiral structure in the outer Galactic disk. I. The Third Galactic Quadrant
Creators: name: Vazquez, Ruben A.
name: May, Jorge
name: Carraro, Giovanni
name: Bronfman, Leonardo
name: Moitinho, Andre
name: Baume, Gustavo
Publisher: name: arXiv
Year: 2007
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We combine optical and radio observations to trace the spiral structure in the Third Quadrant of the Milky Way. The optical observations consist of a large sample of young open clusters and associations, whereas the radio observations consist of a survey of nearby and distant clouds observed in CO. Both the optical and radio samples are the largest ones insofar present in the literature. We use this unique material to analyze the behavior of interstellar extinction and to trace the detailed structure of the Third Galactic Quadrant (TGQ).We find that the Outer (Cygnus) grand design spiral arm is traced by stellar and CO components while the Perseus arm is traced solely by CO and is possibly being disrupted by the crossing of the Local (Orion) arm. The Local arm is traced by CO and young stars toward l = 240 degrees and extends for over 8 kpc along the line of sight reaching the Outer arm. Finally, we characterize the Galactic warp and compare the geometries implied by the young stellar and CO components.
description: 28 pages, 6 eps, somewhat degraded in resolution, figures. Accepted for publication in the Astrophysical Journal
Brane Tilings for Orientifolds
Creators: name: Krefl, Daniel
Publisher: name: arXiv
Year: 2008
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We give an elementary introduction to the recent derivation of the effective low-energy gauge theories of D3-branes probing orientifolds of toric Calabi-Yau 3-fold singularities via brane tiling techniques.
description: 6 pages, 4 figures; typos corrected and reference added; contribution to the proceedings of the 3rd workshop of the RTN project 'Constituents, Fundamental Forces and Symmetries of the Universe', Valencia
Chiral Symmetries and Low Energy Searches for New Physics
Creators: name: Ramsey-Musolf, Michael J.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: I discuss low energy searches for new physics beyond the Standard Model, identifying the role played by chiral symmetries in these searches and in various new physics scenarios. I focus in particular on electric dipole moment searches; precision studies of weak decays and electron scattering; and neutrino properties and interactions.
description: Talk given at 5th International Workshop on Chiral Dynamics, Durham/Chapel Hill, NC (September, 2006); 12 pages
Fitness landscape of the cellular automata majority problem: View from the Olympus
Creators: name: Verel, Sébastien
name: Collard, Philippe
name: Tomassini, Marco
name: Vanneschi, Leonardo
Publisher: name: arXiv
Year: 2007
Subjects: subject: Artificial Intelligence (cs.AI)
subject: FOS: Computer and information sciences

description: In this paper we study cellular automata (CAs) that perform the computational Majority task. This task is a good example of what the phenomenon of emergence in complex systems is. We take an interest in the reasons that make this particular fitness landscape a difficult one. The first goal is to study the landscape as such, and thus it is ideally independent from the actual heuristics used to search the space. However, a second goal is to understand the features a good search technique for this particular problem space should possess. We statistically quantify in various ways the degree of difficulty of searching this landscape. Due to neutrality, investigations based on sampling techniques on the whole landscape are difficult to conduct. So, we go exploring the landscape from the top. Although it has been proved that no CA can perform the task perfectly, several efficient CAs for this task have been found. Exploiting similarities between these CAs and symmetries in the landscape, we define the Olympus landscape which is regarded as the ''heavenly home'' of the best local optima known (blok). Then we measure several properties of this subspace. Although it is easier to find relevant CAs in this subspace than in the overall landscape, there are structural reasons that prevent a searcher from finding overfitted CAs in the Olympus. Finally, we study dynamics and performance of genetic algorithms on the Olympus in order to confirm our analysis and to find efficient CAs for the Majority problem with low computational cost.
Equation of motion for incompressible mixed fluid driven by evaporation and its application to online rankings
Creators: name: Hattori, Kumiko
name: Hattori, Tetsuya
Publisher: name: arXiv
Year: 2008
Subjects: subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences
subject: 35C05; 35Q35; 82C22

description: We give a unique classical solution to initial value problem for a system of partial differential equations for the densities of components of one dimensional incompressible fluid mixture driven by evaporation. Motivated by the known fact that the solution appears as an infinite particle limit of stochastic ranking processes, which is a simple stochastic model of time evolutions of e.g., Amazon Sales Ranks, we collected data from the web and performed statistical fits to our formula. The results suggest that the fluid equations and solutions may have an application in the analysis of online rankings.
description: 13 pages, LaTeX; Main theorem refined (uniqueness proved)
Steffi Marung, Die wandernde Grenze. Die EU, Polen und der Wandel politischer Räume, 1990-2010
Creators: name: Stokłosa, Katarzyna
Publisher: name: Zeitschrift für Ostmitteleuropa-Forschung
Year: 2015

description: Zeitschrift für Ostmitteleuropa-Forschung, Bd. 64 Nr. 2 (2015): „Aufbruch zur Demokratie?“ Aspekte einer Demokratiegeschichte Ostmitteleuropas (1918-1939)
New aspects of leptogenesis bounds
Creators: name: Blanchet, Steve
name: Di Bari, Pasquale
Publisher: name: arXiv
Year: 2008
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We present a general analysis that reveals new aspects of the leptogenesis bounds on neutrino masses and on the reheat temperature of the Universe. After revisiting a known effect coming from an unbounded term in the total CP asymmetry, we show that an unbounded term in the flavored CP asymmetries has a stronger impact. It relaxes the lower bound on the reheat temperature down to 10^8 GeV for (M_2-M_1)/M_1=O(1-100) and for a mild tuning of the parameters in the see-saw orthogonal matrix. We also consider the effect of the Higgs asymmetry, showing that it lowers the upper bound on the neutrino masses in the so-called fully flavored regime where classic Boltzmann equations can be used. Imposing independence of the initial conditions contributes to lower the upper bound on neutrino masses as well. We study the conditions for the validity of the usual N_1-dominated scenario and for the applicability of the lower bound on the lightest right-handed (RH) neutrino mass M_1. We find that except for the two effective RH neutrino scenario, recovered for M_3 >>10^14 GeV, and for values M_2 < O(10^11 GeV), the final asymmetry is more naturally dominated by the contribution from N_2-decays. Finally, we confirm in a general way that going beyond the hierarchical limit, the effect of washout addition makes the lower bound on M_1 more stringent for (M_2-M_1)/M_1=O(0.1).
description: 45 pages, 15 figures; v2: minor changes, added Ref.'s, typo corrected in Eq. (1); to appear on NPB
Alojzy Twardecki, Die Schule der Janitscharen
Creators: name: Röger, Maren
Publisher: name: Zeitschrift für Ostmitteleuropa-Forschung
Year: 2015

description: Zeitschrift für Ostmitteleuropa-Forschung, Bd. 64 Nr. 3 (2015): Transpolonität? Gesellschaftliche Eliten in den polnischen Gebieten um 1900 jenseits der Nationalgeschichte(n)
The globular cluster system in NGC5866: optical observations from HST Advanced Camera for Surveys
Creators: name: Cantiello
name: Michele
name: Blakeslee
name: P., John
name: Raimondo
name: Gabriella
Publisher: name: arXiv
Year: 2007
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We perform a detailed study of the Globular Cluster (GC) system in the galaxy NGC5866 based on F435W, F555W, and F625W (~ B, V, and R) HST Advanced Camera for Surveys images. Adopting color, size and shape selection criteria, the final list of GC candidates comprises 109 objects, with small estimated contamination from background galaxies, and foreground stars. The color distribution of the final GC sample has a bimodal form. Adopting color to metallicity transformations derived from the Teramo--SPoT simple stellar population model, we estimate a metallicity [Fe/H]~ -1.5, and -0.6 dex for the blue and red peaks, respectively. A similar result is found if the empirical color-metallicity relations derived from Galactic GCs data are used. The two subpopulations show some of the features commonly observed in the GC system of other galaxies, like a ``blue tilt'', higher central concentrations of the red subsystem, and larger half--light radii at larger galactocentric distances. However, we do not find evidence of a substantial difference between the average sizes of red and blue clusters. Our analysis of the GC Luminosity Function indicates a V-band Turn-Over Magnitude V$_0^{TOM}$=23.46+-0.06, or M$_{V,0}^{TOM}\sim-7.29 +- 0.10$ mag, using the distance modulus derived from the average of SBF and the PNLF distances. The absolute Turn-Over Magnitude obtained agrees well with calibrations from literature. The specific frequency is measured to be $S_N=1.4 +- 0.3$, typical for galaxies of this type.
description: ApJ, accepted
Role of scaling in the statistical modeling of finance
Creators: name: Stella, Attilio L.
name: Baldovin, Fulvio
Publisher: name: arXiv
Year: 2008
Subjects: subject: Statistical Finance (q-fin.ST)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Physics and Society (physics.soc-ph)
subject: FOS: Economics and business
subject: FOS: Physical sciences

description: Modeling the evolution of a financial index as a stochastic process is a problem awaiting a full, satisfactory solution since it was first formulated by Bachelier in 1900. Here it is shown that the scaling with time of the return probability density function sampled from the historical series suggests a successful model. The resulting stochastic process is a heteroskedastic, non-Markovian martingale, which can be used to simulate index evolution on the basis of an auto-regressive strategy. Results are fully consistent with volatility clustering and with the multi-scaling properties of the return distribution. The idea of basing the process construction on scaling, and the construction itself, are closely inspired by the probabilistic renormalization group approach of statistical mechanics and by a recent formulation of the central limit theorem for sums of strongly correlated random variables.
description: Based on the Key Note lecture by A.L. Stella at the Conference on ``Statistical Physics Approaches to Multi-Disciplinary Problems'', IIT Guwahati, India, 7-13 January 2008
Carroll limit of four-dimensional gravity theories in the first order formalism
Creators: name: Guerrieri, Amanda
name: Sobreiro, Rodrigo F.
Publisher: name: arXiv
Year: 2021
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We explore the ultra-relativistic limit of a class of four dimensional gravity theories, known as Lovelock-Cartan gravities, in the first order formalism. First, we review the well known limit of the Einstein-Hilbert action. A very useful scale symmetry involving the vierbeins and the boost connection is presented. Moreover, we explore the field equations in order to find formal solutions. Some remarkable results are obtained: Riemann and Weitzenböck like manifolds are discussed; Birkhoff's theorem is verified for the torsionless case; an explicit solution with non-trivial geometry is discussed; A quite general solution in the presence of matter is obtained. Latter, we consider the ultra-relativistic limit of the more general Lovelock-Cartan gravity. The previously scale symmetry is also discussed. The field equations are studied in vacuum and in the presence of matter. In comparison with the Einstein-Hilbert case, a few relevant results are found: Birkhoff's theorem is also verified for the torsionless case; A quite general solution in the presence of matter is obtained. This solution generalizes the previous case; Riemann and Weitzenböck like manifolds are derived in the same lines of the Einstein-Hilbert case.
description: 22 pages; 1 figure
Exchange-driven spin Hall effect in anisotropic ferromagnets
Creators: name: Belashchenko, K. D.
Publisher: name: arXiv
Year: 2023
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: Crystallographic anisotropy of the spin-dependent conductivity tensor can be exploited to generate transverse spin-polarized current in a ferromagnetic film. This ferromagnetic spin Hall effect is analogous to the spin-splitting effect in altermagnets and does not require spin-orbit coupling. First-principles screening of 41 non-cubic ferromagnets revealed that many of them, when grown as a single crystal with tilted crystallographic axes, can exhibit large spin Hall angles comparable with the best available spin-orbit-driven spin Hall sources. Macroscopic spin Hall effect is possible for uniformly magnetized ferromagnetic films grown on some low-symmetry substrates with epitaxial relations that prevent cancellation of contributions from different orientation domains. Macroscopic response is also possible for any substrate if magnetocrystalline anisotropy is strong enough to lock the magnetization to the crystallographic axes in different orientation domains.
description: 10 pages, 2 tables
Implementation of a protocol validation and synthesis system
Creators: name: Tong, Darren Pong-Choi
Publisher: name: University of British Columbia
Year: 2010

description: VALISYN, an automated system for the validation and synthesis of error-free protocols has been implemented in C language. It assists designers in the detection and prevention of various kinds of potential design errors, such as state deadlocks, non-executable interactions, unspecified receptions and state ambiguities. The technique employed is a stepwise application of a set of production rules which guarantee complete reception capability. These rules are implemented in a tracking algorithm, which prevents the formation of non-executable interactions and unspecified receptions, and which monitors the existence of state deadlocks and state ambiguities. The implementation of VALISYN is discussed and a number of protocol validation and synthesis examples are presented to illustrate its use and features.
A new tetra-quark interpretation of X(3872)
Creators: name: Terasaki, Kunihiko
Publisher: name: arXiv
Year: 2007
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Experiment (hep-ex)
subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: A new tetra-quark interpretation of X(3872) is presented. In this model, X(3872) consists of two degenerate tetra-quark mesons, {[cn](cbar nbar) +- (cn)[cbar nbar]}_{I=0}, and, therefore, it is naturally understood that X(3872) decays into two different eigenstates of G-parity.
description: 4 pages, 0 figures, RevTeX, description clarified
Application of Parent Management Training (PMT) As A Treatment Therapy for Conduct Disorder
Creators: name: Abidogun, Moruf Adebayo
Publisher: name: figshare
Year: 2023
Subjects: classificationCode: 520303
subject: Counselling psychology
classificationCode: 520302
subject: Clinical psychology

description: The paper examines Conduct disorder as a pattern of behaviour characterized by aggression, rule-breaking, and a
disregard for others' rights. Individuals with conduct disorder tendencies can present unique challenges in counselling.
They may struggle with impulse control, difficulty following rules, and disruptive behaviour that can disrupt the
therapeutic process. Managing these behaviours and helping clients develop healthier coping strategies becomes a
central focus in therapy. It is important to note that these issues are complex and can vary significantly among
individuals. Each person's unique circumstances, experiences, and motivations will influence the specific challenges
they present in counseling. Skilled and experienced therapists are equipped to navigate these complexities and provide
appropriate support and interventions tailored to the individual's needs. The treatment option focused on this paper is
Parent Management Training (PMT) which is widely recognised and evidence-based therapy for conduct disorder. It
focuses on equipping parents with the necessary skills and strategies to effectively manage and address the challenging
behaviors exhibited by their children. PMT aims to improve parent-child interactions, enhance parenting practices, and
reduce conduct disorder symptom
Strong clustering of primordial black holes from Affleck-Dine mechanism
Creators: name: Kawasaki, Masahiro
name: Murai, Kai
name: Nakatsuka, Hiromasa
Publisher: name: arXiv
Year: 2021
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: Primordial black hole (PBH) is a fascinating candidate for the origin of binary merger events observed by LIGO-Virgo collaboration. The spatial distribution of PBHs at formation is an important feature to estimate the merger rate. We investigate the clustering of PBHs formed by Affleck-Dine (AD) baryogenesis, where dense baryon bubbles collapse to form PBHs. We found that formed PBHs show a strong clustering due to the stochastic dynamics of the AD field. Including the clustering, we evaluate the merger rate and isocurvature perturbations of PBHs, which show significant deviations from those without clustering.
description: 18 pages, 7 figures
Lothar Höbelt, Franz Joseph I. Der Kaiser und sein Reich. Eine politische Geschichte
Creators: name: Hein-Kircher, Heidi
Publisher: name: Zeitschrift für Ostmitteleuropa-Forschung
Year: 2010

description: Zeitschrift für Ostmitteleuropa-Forschung, Bd. 59 Nr. 1 (2010)