cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Lubrang Brokpa Lexicon - overview file
Creators: name: Bodt, Timotheus Adrianus
Publisher: name: Zenodo
Year: 2017
Subjects: Brokpa
Lubrang
Tibetan
Bodish
Arunachal Pradesh

description: These sound files constitute the elicitation of the lexical entries of the Basic Word List in the Lubrang variety of Brokpa. Lubrang village is a recent (early 20th century) settlement of Brokpa speaker originating in Sakteng village of Bhutan. They settled in the then Tibetan-administered area on land belonging to the Khispi people of Lish village, to which they continue to pay an annual tax. Lubrang Brokpa should hence be close to Merak and Sakteng (Bhutan) Brokpa, and not so close to Nyukmadung and Senge Brokpa spoken closer by. Because of the speaker’s paternal background there may be some admixture with Dirang Tshangla.
Angular power spectrum of gamma-ray sources for GLAST: blazars and clusters of galaxies
Creators: name: Ando, Shin'ichiro
name: Komatsu, Eiichiro
name: Narumoto, Takuro
name: Totani, Tomonori
Publisher: name: arXiv
Year: 2006
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: Blazars, a beamed population of active galactic nuclei, radiate high-energy gamma-rays, and thus are a good target for the Gamma Ray Large Area Space Telescope (GLAST). As the blazars trace the large-scale structure of the universe, one may observe spatial clustering of blazars. We calculate the angular power spectrum of blazars that would be detected by GLAST. We show that we have the best chance of detecting their clustering at large angular scales, θ>~ 10 deg, where shot noise is less important, and the dominant contribution to the correlation comes from relatively low redshift, z
description: 14 pages, 10 figures; added references; accepted by MNRAS
Kinetics and Nucleation Dynamics in Ion-Seeded Atomic Clusters
Creators: name: Rozman, M. G.
name: Bredice, M.
name: Smucker, J.
name: Sadeghpour, H. R.
name: Vrinceanu, D.
name: Cote, R.
name: Kharchenko, V.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Atomic and Molecular Clusters (physics.atm-clus)
subject: FOS: Physical sciences

description: The time-dependent kinetics of formation and evolution of nano-size atomic clusters is investigated and illustrated with the nucleation dynamics of ion-seed Ar$_n$H$^+$ particles. The rates of growth and degradation of Ar-atomic shells around the seed ion are inferred from Molecular Dynamics (MD) simulations. Simulations of cluster formation have been performed with accurate quantum-mechanical binary interaction potentials. Both the nonequilibrium and equilibrium growth of Ar$_n$H$^+$ are investigated at different temperature and densities of the atomic gas and seed ions. Formation of Ar$_{n\leq 40}$ shells is the main mechanism which regulates the kinetics of nano-cluster growth and the diffusive fluctuations of the cluster size distribution. The time-evolution of the cluster intrinsic energy and cluster size distributions are analyzed at the non-thermal, quasi-equilibrium, and thermal equilibrium stages of Ar$_n$H$^+$ formation. We've determined the self-consistent model parameters for the temporal fluctuations of the cluster size and found coefficients of the diffusive growth mechanism describing the equilibrium distribution of nano-clusters. Nucleation of haze and nano-dust particles in astrophysical and atmospheric ionized gases are discussed.
description: 12 pages, 10 figures
Scalarized non-topological neutron stars in multi-scalar Gauss-Bonnet gravity
Creators: name: Staykov, Kalin V.
name: Zheleva, Radostina Z.
Publisher: name: arXiv
Year: 2021
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: In the present paper we construct novel non-topological, spontaneously scalarized neutron stars in multi-scalar Gauss-Bonnet gravity with maximally symmetric target space, and nontrivial map $φ:spacetime \rightarrow target\ space$. The theory is characterized by the fact that for some classes of coupling functions the field equations allow solutions with trivial scalar field, which coincide with the general relativistic ones. For a certain range of parameters those solutions lose stability and new branches of solutions with nontrivial scalar field bifurcate from the trivial branch. For a given set of parameters, those branches are characterized by the number of zeros of the scalar field, and they are energetically more favorable than the general relativistic ones.
description: 9 pages, 4 figures
Mass transfer from a fluid flowing through a porous media
Creators: name: Myers, T. G.
name: Font, F.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Other Condensed Matter (cond-mat.other)
subject: Fluid Dynamics (physics.flu-dyn)
subject: FOS: Physical sciences

description: A mathematical model is developed for the process of mass transfer from a fluid flowing through a packed column. Mass loss, whether by absorption or adsorption, may be significant. This is appropriate for example when removing contaminants from flue gases. With small mass loss the model reduces to a simpler form which is appropriate to describe the removal of contaminants/pollutants from liquids. A case study is carried out for the removal of CO2 from a gas mixture passing over activated carbon. Using the experimental parameter values it is shown, via non-dimensionalisation, that certain terms may be neglected from the governing equations, resulting in a form which may be solved analytically using a travelling wave substitution. From this all important quantities throughout the column may be described; concentration of gaseous materials, amount of material available for mass transfer, fluid velocity and pressure. Results are verified by comparison with experimental data for the breakthrough curve (the amount of carbon measured at the column outlet). The advantage of the analytical expression over a purely numerical solution is that it can easily be used to optimise the process. In the final section we demonstrate how the model may be further reduced when small amounts of contaminant are removed. The model is shown to exhibit better agreement than established models when compared to experimental data for the removal of amoxicillin and congo red dye from water.
Presentation: Increasing Customer Loyality of Conventional Bank During the Covid 19 Pandemic, E-Service Quality and Brand Image Through Customer Satisfaction
Creators: name: Sumartik
name: Hariasih, Misti
name: Indayani, Lilik
name: Andriyani, Dewi
Publisher: name: Zenodo
Year: 2021

description: This material presented in 3rd ICIGR 2021
New computational tool for pediction of plant miRNAs from NGS data
Creators: name: Baev, Vesselin
name: Milev, Ivan
name: Naydenov, Mladen
name: Apostolova, Elena
name: Minkov, Georgi
name: Minkov, Ivan
name: Yahubyan, Galina
Publisher: name: F1000Research
Year: 2015

description: Plant microRNAs (miRNAs) are single-stranded 20-22 nt small RNAs (sRNA) that are produced from their own genes. We have developed a de novo genome-wide approach for the computational identification of novel plant miRNAs based on the integration of the complete genome sequence with sRNA libraries. It comprises three modules – the CLUSTERING module identifies genomic regions that have two closely located unidirectional sRNA clusters, the MIRPLAN module explores the secondary structure of the genomic regions, and the DUPLEX module predicts miRNA/miRNA* duplexes. We applied our approach to the Brachypodium genome and publicly available sRNA libraries and predicted 102 miRNAs.Our results extend the list of known miRNAs with 58 novel miRNAs and define the genomic loci of all predicted miRNAs. Because this approach considers specific features of plant miRNAs, it can be employed for the analysis of the genome and sRNA libraries generated for plant species to achieve systematic miRNA discovery.
Investigation of hidden-charm pentaquarks with strangeness $S=-1$
Creators: name: Hu, Xiaohuang
name: Ping, Jialun
Publisher: name: arXiv
Year: 2021
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: Recently, a new hidden-charm pentaquark state $P_{cs}(4459)$ was reported by the LHCb Collaboration. Stimulated by the fact that all hidden-charm pentaquark states in $S=0$ systems were successfully predicted by our chiral quark model, we extended this study to the $S=-1$ systems. All possible quantum numbers $IJ^P=0(\frac{1}{2})^-$, $0(\frac{3}{2})^-$, $0(\frac{5}{2})^-$, $1(\frac{1}{2})^-$, $1(\frac{3}{2})^-$ and $1(\frac{5}{2})^-$ have been investigated. The calculation results shows that the newly observed state $P_{cs}(4459)$ can be explained as $Ξ_c \bar{D}^*$ molecular state and the quantum number is $0(\frac{1}{2})^-$. In addition, we also find other molecular states $Ξ_c \bar{D}$, $Ξ_c^* \bar{D}$ and $Ξ_c' \bar{D}^*$. It is worth mentioning that $Ξ_c \bar{D}^*$ can form a two-peak structure from states in system $0(\frac{1}{2})^-$ and $0(\frac{3}{2})^-$. The decay width of all molecular states is given with the help of real scaling method. These hidden-charm pentaquark states is expected to be further verified in future experiments.
description: 9 pages, 5 figures. arXiv admin note: text overlap with arXiv:2010.14984
title: Forecast Engineering: From Past Design to Future Decision 2017
Creators: name: Abrahamczyk, Lars
name: Schwarz, Jochen
Publisher: name: Bauhaus-Universität Weimar
Year: 2019
Subjects: subject: Proceedings
subject: Ingenieurbau
subject: Sommerkurs
subject: Ingenieurwissenschaften
subject: proceedings
subject: summer school
subject: Structural Engineering
subject: 620

description: The design of engineering structures takes place today and in the past on the basis of static calculations. The consideration of uncertainties in the model quality becomes more and more important with the development of new construction methods and design requirements. In addition to the traditional forced-based approaches, experiences and observations about the deformation behavior of components and the overall structure under different exposure conditions allow the introduction of novel detection and evaluation criteria. The proceedings at hand are the result from the Bauhaus Summer School Course: Forecast Engineering held at the Bauhaus-Universität Weimar, 2017. It summarizes the results of the conducted project work, provides the abstracts of the contributions by the participants, as well as impressions from the accompanying programme and organized cultural activities. The special character of this course is in the combination of basic disciplines of structural engineering with applied research projects in the areas of steel and reinforced concrete structures, earthquake and wind engineering as well as informatics and linking them to mathematical methods and modern tools of visualization. Its innovative character results from the ambitious engineering tasks and advanced modeling demands.
description: Schriftenreihe des Instituts für Konstruktiven Ingenieurbau, vol. 32
Comments on the Hartree-Fock description of the Hooke's atom and suggestion for an accurate closed-form orbital
Creators: name: Sebastien, Ragot
Publisher: name: arXiv
Year: 2008
Subjects: subject: Atomic Physics (physics.atom-ph)
subject: Chemical Physics (physics.chem-ph)
subject: FOS: Physical sciences

description: The ground-state Hartree-Fock (HF) wavefunction of the Hooke's atom is not known in closed form, contrary to the exact solution. The single HF orbital involved has thus far been studied using expansion techniques only, leading to slightly disparate energies. Therefore, the present letter aims at proposing alternative definitions of the HF wavefunction. First, the HF limit is ascertained using a simple expansion, which makes it possible to formulate explicit expressions of HF properties. The resulting energy, 2.038 438 871 8 Eh, is found stable at the tenth digit. Second and more instructive, an analysis of the Hartree equation makes it possible to infer a remarkably simple and accurate HF orbital, leading to an energy exceeding by 5.76 10-7 Eh only the above HF limit. This orbital makes it possible to obtain (near) Hartree-Fock properties in closed-form, which in turn enables handy comparisons with exact quantities.
description: 10 pages, submitted to JCP
LTE and Non-LTE Solutions in Gases Interacting with Radiation
Creators: name: Jang, Jin Woo
name: Velázquez, Juan J. L.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Analysis of PDEs (math.AP)
subject: Fluid Dynamics (physics.flu-dyn)
subject: FOS: Mathematics
subject: FOS: Physical sciences
subject: 35Q20, 35Q31, 85A25, 76N10

description: In this paper, we study a class of kinetic equations describing radiative transfer in gases which include also the interaction of the molecules of the gas with themselves. We discuss several scaling limits and introduce some Euler-like systems coupled with radiation as an aftermath of specific scaling limits. We consider scaling limits in which local thermodynamic equilibrium (LTE) holds, as well as situations in which this assumption fails (non-LTE). The structure of the equations describing the gas-radiation system is very different in the LTE and non-LTE cases. We prove the existence of stationary solutions with zero velocities to the resulting limit models in the LTE case. We also prove the non-existence of a stationary state with zero velocities in a non-LTE case.
description: 48 pages, 1 figure
The role of reconnection in the pulsar magnetosphere
Creators: name: Contopoulos, Ioannis
Publisher: name: arXiv
Year: 2006
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: The present work is our first attempt to understand the role of reconnection in the pulsar magnetosphere. Our discussion is based on the observationaly infered fact that, as the pulsar spins down, the region of closed corotating dipolar field lines grows with time. This implies that reconnection must take place in the magnetosphere. We argue that non-dissipative reconnection along the equatorial current sheet allows for the continuous channeling of pulsar spindown energy into particle energy, all the way from the light cylinder to the pulsar wind termination shock, and we propose that this effect may account for the low σvalues inferred by observations. We present a simple model that allows us to relate the magnetic diffusivity in the equatorial current sheet to an observable pulsar parameter, the braking index n. When n~1, the global structure of the magnetosphere approaches that of a relativistic split monopole where the pulsar spindown energy is carried by the electromagnetic field. However, for values of n>1.5, almost all field lines close inside the pulsar wind termination shock, and thus most of the electromagnetic pulsar spindown energy flux is effectively transformed into particle energy in the equatorial current sheet.
Ab initio calculation of the dynamical properties of PPP and PPV
Creators: name: de Sousa, R. L.
name: Alves, H. W. Leite
Publisher: name: arXiv
Year: 2006
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: Other Condensed Matter (cond-mat.other)
subject: FOS: Physical sciences

description: In this work, we have calculated the vibrational modes and frequencies of the crystalline PPP (in both the Pbam and Pnnm symmetries) and PPV (in the P21/c symmetry). Our results are in good agreement with the available experimental data. Also, we have calculated the temperature dependence of their specific heats at constant volume, and of their vibrational entropies. Based on our results, at high temperatures, the PPP is more stable in the Pnnm structure than in the Pbam one.
description: 5 pages, 7 figures, accepted for publication in Braz. J. Phys., special number, Proceedings of BWSP-12, 12th Brazilian Workshop on Semiconductor Physics
Synthesis of VO_2 Nanowire and Observation of the Metal-Insulator Transition
Creators: name: Choi, Sungyoul
name: Kim, Bong-Jun
name: Lee, Yong-Wook
name: Yun, Sun Jin
name: Kim, Hyun-Tak
Publisher: name: arXiv
Year: 2006
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: We have fabricated crystalline nanowires of VO_2 using a new synthetic method. A nanowire synthesized at 650^oC shows the semiconducting behavior and a nanowire at 670^oC exhibits the first-order metal-insulator transition which is not the one-dimensional property. The temperature coefficient of resistance in the semiconducting nanowire is 7.06 %/K at 300 K, which is higher than that of commercial bolometer.
description: 3 pages, 4 figures, This was presented in NANOMAT 2006 "International workshop on nanostructed materials" on June 21-23th of 2006 in Antalya/TURKEY
Semiclassical Methods in 2D QFT: Spectra and Finite-Size Effects
Creators: name: Riva, Valentina
Publisher: name: arXiv
Year: 2006
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: We review some recent results obtained in the analysis of two-dimensional quantum field theories by means of semiclassical techniques, which generalize methods introduced during the Seventies by Dashen, Hasllacher and Neveu and by Goldstone and Jackiw. The approach is best suited to deal with quantum field theories characterized by a non-linear interaction potential with different degenerate minima, that generates kink excitations of large mass in the small coupling regime. Under these circumstances, although the results obtained are based on a small coupling assumption, they are nevertheless non-perturbative, since the kink backgrounds around which the semiclassical expansion is performed are non-perturbative too. We will discuss the efficacy of the semiclassical method as a tool to control analytically spectrum and finite-size effects in these theories.
description: 16 pages, invited brief review for Mod. Phys. Lett. A
96 dB Linear High Dynamic Range CAOS Spectrometer Demonstration
Creators: name: Mazhar, Mohsin A.
name: Riza, Nabeel A.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Signal Processing (eess.SP)
subject: Optics (physics.optics)
subject: FOS: Electrical engineering, electronic engineering, information engineering
subject: FOS: Physical sciences

description: For the first time, a CAOS (i.e., Coded Access Optical Sensor) spectrometer is demonstrated. The design implemented uses a reflective diffraction grating and a time-frequency CAOS mode operations Digital Micromirror Device (DMD) in combination with a large area point photo-detector to enable highly programmable linear High Dynamic Range (HDR) spectrometry. Experiments are conducted with a 2850 K color temperature light bulb source and visible band color bandpass and high-pass filters as well as neutral density (ND) attenuation filters. A ~369 nm to ~715 nm input light source spectrum is measured with a designed ~1 nm spectral resolution. Using the optical filters and different CAOS modes, namely, Code Division Multiple Access (CDMA), Frequency Modulation (FM)-CDMA and FM-Time Division Multiple Access (TDMA) modes, measured are improving spectrometer linear dynamic ranges of 28 dB, 50 dB, and 96.2 dB, respectively. Applications for the linear HDR CAOS spectrometer includes materials inspection in biomedicine, foods, forensics, and pharmaceuticals.
description: 4 pages
The Five College Radio Astronomy Observatory CO Mapping Survey of the Taurus Molecular Cloud
Creators: name: Narayanan, Gopal
name: Heyer, Mark H.
name: Brunt, Christopher
name: Goldsmith, Paul F.
name: Snell, Ronald
name: Li, Di
Publisher: name: arXiv
Year: 2008
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: The FCRAO Survey of the Taurus Molecular Cloud observed the 12CO and 13CO J=1-0 emission from 98 square degrees of this important, nearby star forming region. This set of data with 45" resolution comprises the highest spatial dynamic range image of an individual molecular cloud constructed to date, and provides valuable insights to the molecular gas distribution, kinematics, and the star formation process. In this contribution, we describe the observations, calibration, data processing, and characteristics of the noise and line emission of the survey. The angular distribution of 12CO and 13CO emission over 1 km/s velocity intervals and the full velocity extent of the cloud are presented. These reveal a complex, dynamic medium of cold, molecular gas.
description: 35 pages, 22 figures, Accepted for publication in Astrophysical Journal Supplement Series; The figures have been compressed in this version. Full-resolution figures of paper available at http://www.astro.umass.edu/~gopal/taurus-datapaper/
Minimal truncations of supersingular p-divisible groups
Creators: name: Nicole, Marc-Hubert
name: Vasiu, Adrian
Publisher: name: arXiv
Year: 2006
Subjects: subject: Number Theory (math.NT)
subject: Algebraic Geometry (math.AG)
subject: FOS: Mathematics
subject: 11G10, 11G18, 14L05

description: Let k be an algebraically closed field of characteristic p>0. Let H be a supersingular p-divisible group over k of height 2d. We show that H is uniquely determined up to isomorphism by its truncation of level d (i.e., by H[p^d]). This proves Traverso's truncation conjecture for supersingular p-divisible groups. If H has a principal quasi-polarization λ, we show that (H,λ) is also uniquely determined up to isomorphism by its principally quasi-polarized truncated Barsotti--Tate group of level d (i.e., by (H[p^d],λ[p^d])).
description: 9 pages, LaTex; to appear in Indiana Univ. Math. J
Stellar Evolution confronts Axion Models
Creators: name: Di Luzio, Luca
name: Fedele, Marco
name: Giannotti, Maurizio
name: Mescia, Federico
name: Nardi, Enrico
Publisher: name: arXiv
Year: 2021
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: Axion production from astrophysical bodies is a topic in continuous development, because of theoretical progress in the estimate of stellar emission rates and, especially, because of improved stellar observations. We carry out a comprehensive analysis of the most informative astrophysics data, revisiting the bounds on axion couplings to photons, nucleons and electrons, and reassessing the significance of various hints of anomalous stellar energy losses. We confront the performance of various theoretical constructions in accounting for these hints, while complying with the observational limits on axion couplings. We identify the most favorable models, and the regions in the mass/couplings parameter space which are preferred by the global fit. Finally, we scrutinize the discovery potential for such models at upcoming helioscopes, namely IAXO and its scaled versions.
description: 38 pages, 3 figures, 5 tabels, 1 appendix. Version published on JCAP
X-ray Flashes or soft Gamma-ray Bursts? The case of the likely distant XRF 040912
Creators: name: Stratta, G.
name: Basa, S.
name: Butler, N.
name: Atteia, J. L.
name: Gendre, B.
name: Pelangeon, A.
name: Malacrino, F.
name: Mellier, Y.
name: Kann, D. A.
name: Klose, S.
name: Zeh, A.
name: Masetti, N.
name: Palazzi, E.
name: Gorosabel, J.
name: Castro-Tirado, A. J.
name: Postigo, A. de Ugarte
name: Jelinek, M.
name: Cepa, J.
name: Castaneda, H.
name: Martinez-Delgado, D.
name: Boer, M.
name: Braga, J.
name: Crew, G.
name: Donaghy, T. Q.
name: Dezalay, J. -P.
name: Doty, J.
name: Fenimore, E. E.
name: Galassi, M.
name: Graziani, C.
name: Jernigan, J. G.
name: Kawai, N.
name: Lamb, D. Q.
name: Levine, A.
name: Manchanda, J.
name: Martel, F.
name: Matsuoka, M.
name: Nakagawa, Y.
name: Olive, J. -F.
name: Pizzichini, G.
name: Prigozhin, G.
name: Ricker, G.
name: Sakamoto, T.
name: Shirasaki, Y.
name: Sugita, S.
name: Suzuki, M.
name: Takagishi, K.
name: Tamagawa, T.
name: Vanderspek, R.
name: Villasenor, J.
name: Woosley, S. E.
name: Yamauchi, M.
name: Yoshida, A.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: In this work, we present a multi-wavelength study of XRF 040912, aimed at measuring its distance scale and the intrinsic burst properties. We performed a detailed spectral and temporal analysis of both the prompt and the afterglow emission and we estimated the distance scale of the likely host galaxy. We then used the currently available sample of XRFs with known distance to discuss the connection between XRFs and classical Gamma-ray Bursts (GRBs). We found that the prompt emission properties unambiguously identify this burst as an XRF, with an observed peak energy of E_p=17+/-13 keV and a burst fluence ratio S(2-30keV)/S(30-400keV)>1. A non-fading optical source with R~24 mag and with an apparently extended morphology is spatially consistent with the X-ray afterglow, likely the host galaxy. XRF 040912 is a very dark burst since no afterglow optical counterpart is detected down to R>25 mag (3 sigma limiting magnitude) at 13.6 hours after the burst. The host galaxy spectrum detected from 3800A to 10000A, shows a single emission line at 9552A. The lack of any other strong emission lines blue-ward of the detected one and the absence of the Ly alpha cut-off down to 3800A are consistent with the hypothesis of the [OII] line at redshift z=1.563+/-0.001. The intrinsic spectral properties rank this XRF among the soft GRBs in the E_peak-E_iso diagram. Similar results were obtained for most XRFs at known redshift. Only XRF 060218 and XRF 020903 represent a good example of instrinsic XRF(i-XRF) and are possibly associated with a different progenitor population. This scenario may calls for a new definition of XRFs.
description: 10 pages, 7 figures, accepted for publication in Astronomy & Astrophysics
NGTS and HST insights into the long period modulation in GW Librae
Creators: name: Chote, P.
name: Gaensicke, B. T.
name: McCormac, J.
name: Aungwerojwit, A.
name: Bayliss, D.
name: Burleigh, M. R.
name: Casewell, S. L.
name: Eigmueller, Ph.
name: Gill, S.
name: Goad, M. R.
name: Hermes, J. J.
name: Jenkins, J. S.
name: Mukadam, A. S.
name: Poshyachinda, S.
name: Raynard, L.
name: Reichart, D. E.
name: Szkody, P.
name: Toloza, O.
name: West, R. G.
name: Wheatley, P. J.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: Light curves of the accreting white dwarf pulsator GW Librae spanning a 7.5 month period in 2017 were obtained as part of the Next Generation Transit Survey. This data set comprises 787 hours of photometry from 148 clear nights, allowing the behaviour of the long (hours) and short period (20min) modulation signals to be tracked from night to night over a much longer observing baseline than has been previously achieved. The long period modulations intermittently detected in previous observations of GW Lib are found to be a persistent feature, evolving between states with periods ~83min and 2-4h on time-scales of several days. The 20min signal is found to have a broadly stable amplitude and frequency for the duration of the campaign, but the previously noted phase instability is confirmed. Ultraviolet observations obtained with the Cosmic Origin Spectrograph onboard the Hubble Space Telescope constrain the ultraviolet-to-optical flux ratio to ~5 for the 4h modulation, and <=1 for the 20min period, with caveats introduced by non-simultaneous observations. These results add further observational evidence that these enigmatic signals must originate from the white dwarf, highlighting our continued gap in theoretical understanding of the mechanisms that drive them.
description: Accepted for publication in MNRAS, 8 pages, 7 figures
Relativistic Particle-In-Cell Simulation Studies of Prompt and Early Afterglows from GRBs
Creators: name: Nishikawa, K. -I.
name: Hardee, P.
name: Mizuno, Y.
name: Medvedev, M.
name: Zhang, B.
name: Hartmann, D. H.
name: Fishman, G. J.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: Nonthermal radiation observed from astrophysical systems containing relativistic jets and shocks e.g. gamma-ray bursts (GRBs) active galactic nuclei (AGNs) and microquasars commonly exhibit power-law emission spectra. Recent PIC simulations of relativistic electron-ion (or electron-positron) jets injected into a stationary medium show that particle acceleration occurs within the downstream jet. In collisionless relativistic shocks particle (electron, positron and ion) acceleration is due to plasma waves and their associated instabilities (e.g. the Weibel (filamentation) instability) created in the shock region. The simulations show that the Weibel instability is responsible for generating and amplifying highly non-uniform small-scale magnetic fields. These fields contribute to the electron's transverse deflection behind the jet head. The resulting ``jitter'' radiation from deflected electrons has different properties compared to synchrotron radiation which assumes a uniform magnetic field. Jitter radiation may be important for understanding the complex time evolution and/or spectra in gamma-ray bursts, relativistic jets in general and supernova remnants.
description: 19 pages,7 figures, contributed talk at Seventh European Workshop on Collisionless Shocks, Paris, 7- 9 November 2007. High resolution version can be obtained at http://gammaray.nsstc.nasa.gov/~nishikawa/shockws07.pdf
Experimental studies of instabilities of laminar premixed flames
Creators: name: Searby, Geoffrey
Publisher: name: arXiv
Year: 2006
Subjects: subject: Classical Physics (physics.class-ph)
subject: FOS: Physical sciences

description: We first briefly recall the basic mechanisms controlling the hydrodynamic and thermo-diffusive stability of planar laminar premixed flames, and give the state of the theoretical analysis. We then describe some novel experiments to observe and measure the growth rate of cellular structures on initially planar flames. The first experiment concerns the observation of the temporal growth of wrinkling on a freely propagating planar flame. A second experiment concerns the spatio-temporal growth of structures of controlled wavelength on an anchored flame. The experimental observations are compared to theoretical dispersion relation. Finally, we compare observations of the non-linear evolution to saturation with the predictions of an extended Michelson-Sivashinsky equation.
FAIR National Roadshow Tunisia: Advancing FAIR Policies and Practices in Tunisia (Faire Evoluer les Politiques et Pratiques FAIR en Tunisie)
Creators: name: Ben Romdhane, Chokri
name: Aamira, Bessem
name: Ben Ali, Salaheddine
name: Davidson, Joy
name: Landel, Salome
Publisher: name: Zenodo
Year: 2024

description: The FAIR-IMPACT FAIR National Roadshow series visited Tunisia on 25 September 2024.

The event was virtually hosted by CNUDST - University National Center of Scientific and Technical Documentation. 

This event aims to promote the ongoing work being carried out by CNUDST to advance FAIR policies and practices in Tunisia. The event will also provide an introduction to the FAIR-IMPACT project to the research community in Tunisia.

Find more details on the event page here.
Mühling, Markus (Hrsg.): Gott und Götter in den Weltreligionen - Christentum, Judentum, Islam, Hinduismus, Konfuzianismus, Buddhismus
Creators: name: Andrée, Uta
Publisher: name: Ökumenische Rundschau
Year: 2025

description: Ökumenische Rundschau, Bd. 64 Nr. 4 (2015): Ökumenische Rundschau, Band 64, Heft 4
Density Fluctuations across the Superfluid-Supersolid Phase Transition in a Dipolar Quantum Gas
Creators: name: Hertkorn, J.
name: Schmidt, J. -N.
name: Böttcher, F.
name: Guo, M.
name: Schmidt, M.
name: Ng, K. S. H.
name: Graham, S. D.
name: Büchler, H. P.
name: Langen, T.
name: Zwierlein, M.
name: Pfau, T.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Quantum Gases (cond-mat.quant-gas)
subject: Atomic Physics (physics.atom-ph)
subject: FOS: Physical sciences

description: Phase transitions share the universal feature of enhanced fluctuations near the transition point. Here we show that density fluctuations reveal how a Bose-Einstein condensate of dipolar atoms spontaneously breaks its translation symmetry and enters the supersolid state of matter -- a phase that combines superfluidity with crystalline order. We report on the first direct in situ measurement of density fluctuations across the superfluid-supersolid phase transition. This allows us to introduce a general and straightforward way to extract the static structure factor, estimate the spectrum of elementary excitations and image the dominant fluctuation patterns. We observe a strong response in the static structure factor and infer a distinct roton minimum in the dispersion relation. Furthermore, we show that the characteristic fluctuations correspond to elementary excitations such as the roton modes, which have been theoretically predicted to be dominant at the quantum critical point, and that the supersolid state supports both superfluid as well as crystal phonons.
description: 11 pages, 5 + 3 figures
Singlet Free Energies and Renormalized Polyakov Loop in full QCD
Creators: name: Petrov, K.
Publisher: name: arXiv
Year: 2006
Subjects: subject: High Energy Physics - Lattice (hep-lat)
subject: FOS: Physical sciences

description: We calculate the free energy of a static quark anti-quark pair and the renormalized Polyakov loop in 2+1- and 3- flavor QCD using $16^3 \times 4$ and $16^3 \times 6$ lattices and improved staggered p4 action. We also compare the renormalized Polyakov loop with the results of our earlier studies.
description: Talk given at XXIV International Symposium on Lattice Gauge Theory, to appear in Proceedings of Science
title: "Pope for Planet"?:
title: Laudato Si' als "dringliche Einladung zum Dialog" (LS 14) und das weltweite Echo auf die Enzyklika
titleType: Subtitle
Creators: name: Heimbach-Steins, Marianne
name: Stockmann, Nils
Publisher: name: University of Muenster, Institutional Repository MIAMI
Year: 2022
Subjects: subject: 241 Christian ethics

description: Marianne Heimbach-Steins und Nils Stockmann widmen sich der Reichweite und weltweiten Rezeption der Enzyklika Laudato Si'(2015). Die Autor*innen zeichnen Trends und Schwerpunkte der Kommentierung der Enzyklika nach und zeigen, dass sie überwiegend konstruktiv aufgenommen, zugleich aber auch kontrovers diskutiert wurde. In einem zweiten Schritt werden die Redeweise und die Art der Vermittlung, die Papst Franziskus wählt, analysiert und in ihrer ethischen und spirituellen Dimension erörtert. Abschließend skizzieren die Autor*innen Perspektiven für die weitere Beschäftigung mit der Enzyklika.
description: Einleitung ..... 1 1. Zur weltweiten Rezeption der Enzyklika Laudato si' ..... 2 1.1 Regionale Analyse der Rezeption ..... 2 1.1.1 Vorbemerkungen zur Methodik ..... 2 1.1.2 USA ..... 3 1.1.3 Südamerika ..... 6 1.1.4 Afrika ..... 7 1.1.5 Asien/Ozeanien/Australien ..... 8 1.1.6 Europa ..... 9 1.2. Differenzierung verschiedener "Öffentlichkeiten" in der Rezeption der Enzyklika ..... 11 1.2.1 Leitmedienkultur ..... 11 1.2.2 Kirchliche Medienöffentlichkeit ..... 11 1.2.3 Kommentierung aus Sicht anderer Religionsgemeinschaften und Konfessionen ..... 12 1.2.4 Zivilgesellschaft und Politik ..... 14 1.2.5 Wissenschaftliche Kommentierung ..... 15 2. Werbetour für das Klima? Der weitere Prozess der Vermittlung von LS‘ auf den apostolischen Reisen nach Südamerika und USA/Kuba ..... 19 3. Laudato si' – aggiornamento der kirchlichen Sozialverkündigung im Gestus prophetischer Einsprache ..... 20 3.1 Die "Zeichen der Zeit" deuten – Einladung zum Dialog "mit allen" ..... 21 3.2 Metaphorische Sprache – prophetischer Gestus ..... 24 3.3 Ganzheitliche Ökologie – ethische und spirituelle Dimension ..... 27 4. "Pope for Planet"? – Ausblick auf Potenziale der Enzyklika ..... 30 Anhang Die AutorInnen ..... 34 Bisher erschienene Sozialethische Arbeitspapiere ..... 34
Surface Effect on Domain Wall Width in Ferroelectrics
Creators: name: Eliseev, Eugene A.
name: Morozovska, Anna N.
name: Kalinin, Sergei V.
name: Li, Yulan L.
name: Shen, Jie
name: Glinchuk, Maya D.
name: Chen, Long-Qing
name: Gopalan, Venkatraman
Publisher: name: arXiv
Year: 2008
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: We study the effect of depolarization field related with inhomogeneous polarization distribution, strain and surface energy parameters on a domain wall profile near the surface of a ferroelectric film within the framework of Landau-Ginzburg-Devonshire phenomenology. Both inhomogeneous elastic stress and positive surface energy lead to the wall broadening at electrically screened surface. For ferroelectrics with weak piezoelectric coupling, the extrapolation length that defines surface energy parameter, affects the wall broadening more strongly than inhomogeneous elastic stress. Unexpectedly, the domain wall profile follows a long-range power law when approaching the surface, while it saturates exponentially in the bulk. In materials with high piezoelectric coupling and negligibly small surface energy (i.e. high extrapolation length) inhomogeneous elastic stress effect dominates.
description: 36 pages, 7 Figures, 1 Table, 3 Appendices, to be submitted to Phys. Rev. B
Packing of elastic rings with friction
Creators: name: Alben, Silas
Publisher: name: arXiv
Year: 2021
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: FOS: Physical sciences

description: We study the deformations of elastic filaments confined within slowly-shrinking circular boundaries, under contact forces with friction. We perform computations with a spring-lattice model that deforms like a thin inextensible filament of uniform bending stiffness. Early in the deformation, two lobes of the filament make contact. If the friction coefficient is small enough, one lobe slides inside the other; otherwise, the lobes move together or one lobe bifurcates the other. There follows a sequence of deformations that is a mixture of spiraling and bifurcations, primarily the former with small friction and the latter with large friction. With zero friction, a simple model predicts that the maximum curvature and the total elastic energy scale as the wall radius to the -3/2 and -2 powers respectively. With nonzero friction, the elastic energy follows a similar scaling but with a prefactor up to 8 times larger, due to delayering and bending with a range of small curvatures. For friction coefficients as large as 1, the deformations are qualitatively similar with and without friction at the outer wall. Above 1, the wall friction case becomes dominated by buckling near the wall.
description: 23 pages, 12 figures
FAIR-IMPACT National Roadshow France - French data repositories and their use of semantics
Creators: name: Dillo, Ingrid
name: Jonquet, Clement
name: Landel, Salomé
name: Szabo, Dimitri
name: Cabrera-Bosquet, Llorenç
name: Pierkot, Christelle
name: Jouanot, Fabrice
Publisher: name: Zenodo
Year: 2024

description: The FAIR-IMPACT FAIR National Roadshow series visited France on 11 September 2024.

This hybrid event was hosted by INRAE in Paris, France, taking place the day before the Tripartite EOSC event, which provided an overview of current developments in French Open Science.

The event aimed to showcase the national-level work being done in France, with various partners presenting their achievements, skills, and tools developed through FAIR-IMPACT and related EOSC projects. The first part focused on OntoPortal technology, which enables the use of semantic artefacts in data repositories at both the disciplinary and institutional levels. The second part addressed (meta)data interoperability with the help of semantics, while the final session featured tool demonstrations related to French use cases.

Find more details on the event page here.
Epidemic variability in complex networks
Creators: name: Crépey, Pascal
name: Alvarez, Fabián P.
name: Barthélemy, Marc
Publisher: name: arXiv
Year: 2006
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Other Condensed Matter (cond-mat.other)
subject: Data Analysis, Statistics and Probability (physics.data-an)
subject: Other Quantitative Biology (q-bio.OT)
subject: FOS: Physical sciences
subject: FOS: Biological sciences

description: We study numerically the variability of the outbreak of diseases on complex networks. We use a SI model to simulate the disease spreading at short times, in homogeneous and in scale-free networks. In both cases, we study the effect of initial conditions on the epidemic's dynamics and its variability. The results display a time regime during which the prevalence exhibits a large sensitivity to noise. We also investigate the dependence of the infection time on nodes' degree and distance to the seed. In particular, we show that the infection time of hubs have large fluctuations which limit their reliability as early-detection stations. Finally, we discuss the effect of the multiplicity of shortest paths between two nodes on the infection time. Furthermore, we demonstrate that the existence of even longer paths reduces the average infection time. These different results could be of use for the design of time-dependent containment strategies.
Some Neumann-Bessel series and the Laplacian on polygons
Creators: name: Molinari, Luca Guido
Publisher: name: arXiv
Year: 2020
Subjects: subject: Spectral Theory (math.SP)
subject: FOS: Mathematics
subject: 33C10 (Primary) 35J05 (Secondary)

description: Several sums of Neumann series with Bessel and trigonometric functions are evaluated, as finite sums of trigonometric functions. They arise from a generalization of the Neumann expansion of the eigenstates of the Laplacian in regular polygons.
description: 7 pages, 8 figures
Combining cosmological and local bounds on bimetric theory
Creators: name: Caravano, Angelo
name: Lüben, Marvin
name: Weller, Jochen
Publisher: name: arXiv
Year: 2021
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: Ghost-free bimetric theory describes two nonlinearly interacting spin-2 fields, one massive and one massless, thus extending general relativity. We confront bimetric theory with observations of Supernovae type 1a, Baryon Acoustic Oscillations and the Cosmic Microwave Background in a statistical analysis, utilising the recently proposed physical parametrisation. This directly constrains the physical parameters of the theory, such as the mass of the spin-2 field and its coupling to matter. We find that all models under consideration are in agreement with the data. Next, we compare these results to bounds from local tests of gravity. Our analysis reveals that all two- and three-parameter models are observationally consistent with both cosmological and local tests of gravity. The minimal bimetric model (only $β_1$) is ruled out by our combined analysis.
FAIR-IMPACT National Roadshow France: French data repositories and their use of semantics
Creators: name: Dillo, Ingrid
name: Jonquet, Clement
name: Landel, Salomé
name: Szabo, Dimitri
name: Cabrera-Bosquet, Llorenç
name: Pierkot, Christelle
name: Jouanot, Fabrice
name: Corre, Carmen
name: Aubin, Sophie
Publisher: name: Zenodo
Year: 2024

description: The FAIR-IMPACT FAIR National Roadshow series visited France on 11 September 2024.

This hybrid event was hosted by INRAE in Paris, France, taking place the day before the Tripartite EOSC event, which provided an overview of current developments in French Open Science.

The event aimed to showcase the national-level work being done in France, with various partners presenting their achievements, skills, and tools developed through FAIR-IMPACT and related EOSC projects. The first part focused on OntoPortal technology, which enables the use of semantic artefacts in data repositories at both the disciplinary and institutional levels. The second part addressed (meta)data interoperability with the help of semantics, while the final session featured tool demonstrations related to French use cases.

Find more details on the event page here.
Multiple Hierarchies from a Warped Extra Dimension
Creators: name: Lee, Seung J.
name: Nakai, Yuichiro
name: Suzuki, Motoo
Publisher: name: arXiv
Year: 2021
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: Theories beyond the Standard Model often contain mass scales hierarchically different from the electroweak scale and the Planck scale. It has been shown that such hierarchical mass scales can be realized as typical energy scales of multiple 3-branes in a 5D warped spacetime. We present a mechanism for stabilizing the intervals between the multiple 3-branes in the warped extra dimension, by introducing a single 5D scalar field with brane-localized potentials. We discuss the radion stabilization by solving the Einstein equation and the scalar field equation of motion so that a backreaction effect on the geometry due to the presence of the scalar field is taken into account. Perturbations from the background configuration are then considered with proper identification of multiple radion degrees of freedom. By solving their equations of motion, we compute the mass spectrum of the radion-scalar field system and the radion couplings to brane-localized matter fields, which are found to be suppressed by typical energy scales and radion profiles at the branes. We also compute the mass spectrum of Kaluza-Klein gravitons and their profiles in the extra dimension. Some applications of the setup are briefly described. Our analysis provides a solid ground to build 5D warped extra dimension models with multiple 3-branes.
description: 41 pages, 7 figures; the radion kinetic term corrected but conclusion unchanged