cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Propensity for premature filing for judicial financial recovery in large-scale agriculture in Brazil
Creators: name: Ortiz, Antonio Carlos
name: Monaco, Henrique
name: Machado, Vitor
name: Boehlje, Michael
name: Ortiz, Antonio Carlos
name: Monaco, Henrique
name: Machado, Vitor
name: Boehlje, Michael
Publisher: name: Unknown
Year: 2021
Subjects: subject: Agribusiness
subject: Financial Economics
subject: farmers
subject: financial distress
subject: liquidity
subject: moral hazard

description: In the Brazilian agricultural space, numerous cases of large farmers have declared themselves in severe financial distress and filed for Judicial Financial Recovery (JFR) in the past few years. Our statistical analysis, although preliminary and based on limited available data, indicates that these operations have shown financial indices at levels that, in general, did not significantly differ from a sample of other larger farmers’. Only ‘liquidity’ presented a more persistent relationship with the cases of Judicial Recovery. Therefore, it seems that farmers may be resorting to the JFR route prematurely. Within a limited subsample of cases of farmers who filed for JFR, data also shows a pattern with indications that farmers may tend to time their filing to coincide with having their main crops ready for commercialization immediately preceding or after harvesting. This suggests that these farmers might be seeking to free their most recent crop from previous financial and commercial commitments by pursuing a favorable court decision to their JFR. Some factors may be driving this behavior: (1) most farmers in Brazil do not produce a complete set of financial statements on accrual bases, which may lead to errors and incomplete information; (2) not all farmers’ debt is registered at the Central Bank, making debt consolidation a challenging discovery process to lenders, who may overleverage clients; (3) farm revenues are concentrated in only a few weeks of the year, allowing farmers that file for Judicial Recovery to carry on with their business, if the courts halt service of previous debt; (4) courts have also allowed these farmers to release assets from collateralized loans. In sum, there may be inaccurate interpretation of the farmers’ financial condition due to incomplete information, and a component of moral hazard motivating large farmers filing prematurely for JFR in Brazil. The number and magnitude of these cases may generate negative consequences to agricultural credit costs and availability in the future.
Eurygeophilus
Creators: name: Zapparoli, Marzio
Publisher: name: Zenodo
Year: 2009
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Chilopoda
Geophilomorpha
Geophilidae
Eurygeophilus

description: 50. Eurygeophilus multistiliger (Verhoeff, 1899a)
 1) Eurygeophilus multistiliger (Verhoeff, 1889): Bonato et al. 2006: 435, figs 5– 13, 19. 2) Eurygeophilus multistiliger (Verhoeff, 1889): Vadell & Pons 2008: 174.
description: Published as part of Zapparoli, Marzio, 2009, An annotated catalogue of the epigeic and cave centipedes (Chilopoda) of Sardinia *, pp. 56-168 in Zootaxa 2318 on page 142, DOI: 10.5281/zenodo.192026
Spectral variability of GX 339-4 in a hard-to-soft state transition
Creators: name: Del Santo, M.
name: Malzac, J.
name: Jourdain, E.
name: Belloni, T.
name: Ubertini, P.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We report on INTEGRAL observations of the bright black-hole transient GX 339-4 performed during the period August-September 2004. Our data cover three different spectral states, namely Hard/Intermediate State, Soft/Intermediate State and High/Soft State. We investigate the spectral variability of the source across the different spectral states. The hard X-ray spectrum becomes softer during the HIMS-to-SIMS transition, but it hardens when reaching the HSS state. A principal component analysis demonstrates that most of the variability occurs through two independent modes: a pivoting of the spectrum around 6 keV (responsible for 75% of the variance) and an intensity variation of the hard component (responsible for 21%). The pivoting is interpreted as due to changes in the soft cooling photon flux entering the corona, the second mode as fluctuations of the heating rate in the corona. Our spectral analysis of the spectra of GX 339-4 shows a high energy excess with respect to pure thermal Comptonisation models in the HIMS: a non-thermal power-law component seems to be requested by data. In all spectral states joint IBIS, SPI and JEM-X data are well represented by hybrid thermal/non-thermal Comptonisation (EQPAIR). The spectral evolution seems to be predominantly driven by a reduction of the ratio of the electron heating rate to the soft cooling photon flux in the corona, l_h/l_s. The inferred accretion disc soft thermal emission increases by about two orders of magnitude, while the Comptonised luminosity decreases by at most a factor of 3. This confirms that the softening we observed is due to a major increase in the flux of soft cooling photons in the corona associated with a modest reduction of the electron heating rate.
description: 11 pages, 6 figures, 4 tables; accepted for publication in MNRAS Main Journal
Solvation Free Energies in Subsystem Density Functional Theory
Creators: name: Bensberg, Moritz
name: Türtscher, Paul L.
name: Unsleber, Jan P.
name: Reiher, Markus
name: Neugebauer, Johannes
Publisher: name: arXiv
Year: 2021
Subjects: subject: Chemical Physics (physics.chem-ph)
subject: Other Condensed Matter (cond-mat.other)
subject: Computational Physics (physics.comp-ph)
subject: FOS: Physical sciences

description: For many chemical processes the accurate description of solvent effects are vitally important. Here, we describe a hybrid ansatz for the explicit quantum mechanical description of solute-solvent and solvent-solvent interactions based on subsystem density functional theory and continuum solvation schemes. Since explicit solvent molecules may compromise scalability of the model and transferability of the predicted solvent effect, we aim to retain both, for different solutes as well as for different solvents. The key for the transferability is the consistent subsystem decomposition of solute and solvent. The key for the scalability is the performance of subsystem DFT for increasing numbers of subsystems. We investigate molecular dynamics and stationary point sampling of solvent configurations and compare the resulting (Gibbs) free energies to experiment and theoretical methods. We can show that with our hybrid model reaction barriers and reaction energies are accurately reproduced compared to experimental data.
description: 54 pages, 11 figures
James E. Bjork, Neither German nor Pole. Catholicism and National Indifference in a Central European Borderland
Creators: name: Struve, Kai
Publisher: name: Zeitschrift für Ostmitteleuropa-Forschung
Year: 2009

description: Zeitschrift für Ostmitteleuropa-Forschung, Bd. 58 Nr. 3 (2009): Vorträge der Sektion "Osteuropa" auf dem 37. Deutschen Reichshistorikertag
Maria Muallem, Das Polenbild bei Ernst Moritz Arndt und die deutsche Publizistik in der ersten Hälfte des 19. Jahrhunderts
Creators: name: Imhof, Michael
Publisher: name: Zeitschrift für Ostmitteleuropa-Forschung
Year: 2002

description: Zeitschrift für Ostmitteleuropa-Forschung, Bd. 51 Nr. 3 (2002)
Clinical features and their relations to molecular alteration in Tuberous sclerosis: integrated viewpoints from physicians and scientists
Creators: name: Suthida Chaithirayanon, Vorasith Siripornpanich
Publisher: name: Faculty of Medicine,Srinakharinwirot University
Year: 2012
Subjects: Tuberous Sclerosis, mTOR, Genetic disease

description: 1, 19, Journal of Medicine and Health Sciences
Stochastic Variational Approach to Small Atoms and Molecules Coupled to Quantum Field Modes
Creators: name: Ahrens, Alexander
name: Huang, Chenhang
name: Beutel, Matt
name: Covington, Cody
name: Varga, Kalman
Publisher: name: arXiv
Year: 2021
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: In this work, we present a stochastic variational calculation (SVM) of energies and wave functions of few particle systems coupled to quantum fields in cavity QED. The light-matter coupled system is described by the Pauli-Fierz Hamiltonian. The spatial wave function and the photon spaces are optimized by a random selection process. Examples for a two-dimensional trion and confined electrons as well as for the He atom and the Hydrogen molecule are presented showing that the light-matter coupling drastically changes the electronic states.
Knowledge, attitudes and practice of premarital, preconceptional blood tests and thalassemia among pregnant women and their spouses during the first prenatal visit
Creators: name: Kasem Raungrongmorakot, Pawin Puapornpong
Publisher: name: Faculty of Medicine,Srinakharinwirot University
Year: 2012
Subjects: Anemia, Group video counseling, Prenatal diagnosis

description: 2, 19, Journal of Medicine and Health Sciences
Reducing democratic type II supergravity on SU(3) x SU(3) structures
Creators: name: Cassani, Davide
Publisher: name: arXiv
Year: 2008
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: Type II supergravity on backgrounds admitting SU(3) x SU(3) structure and general fluxes is considered. Using the generalized geometry formalism, we study dimensional reductions leading to N=2 gauged supergravity in four dimensions, possibly with tensor multiplets. In particular, a geometric formula for the full N=2 scalar potential is given. Then we implement a truncation ansatz, and derive the complete N=2 bosonic action. While the NSNS contribution is obtained via a direct dimensional reduction, the contribution of the RR sector is computed starting from the democratic formulation and demanding consistency with the reduced equations of motion.
description: 38 pages. v2: minor revisions; a few comments added in sect.3
Kinetics of indirect excitons in the optically-induced exciton trap
Creators: name: Hammack, A. T.
name: Butov, L. V.
name: Mouchliadis, L.
name: Ivanov, A. L.
name: Gossard, A. C.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We report on the kinetics of a low-temperature gas of indirect excitons in the optically-induced exciton trap. The excitons in the region of laser excitation are found to rapidly -- within 4 ns -- cool to the lattice temperature T = 1.4 K, while the excitons at the trap center are found to be cold -- essentially at the lattice temperature -- even during the excitation pulse. The loading time of excitons to the trap center is found to be about 40 ns, longer than the cooling time yet shorter than the lifetime of the indirect excitons. The observed time hierarchy is favorable for creating a dense and cold exciton gas in optically-induced traps and for in situ control of the gas by varying the excitation profile in space and time before the excitons recombine.
description: 4 pages, 3 figures
Stenotaenia
Creators: name: Zapparoli, Marzio
Publisher: name: Zenodo
Year: 2009
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Chilopoda
Geophilomorpha
Geophilidae
Stenotaenia

description: 51. Stenotaenia romana (Silvestri, 1895)
 1) Geophilus romanus Silvestri, 1896 [sic]: Minelli 1983a: 8.
 2) Geophilus romanus Silv. 1896 [sic]: Minelli 1983b: 406.
 3) Geophilus romanus Silvestri, 1896 [sic]: Foddai et al. 1995: 10.
 4) Geophilus romanus Silvestri, 1896 [sic]: Foddai et al. 1996: 361, tab. I. 5) Stenotaenia romana (Silvestri, 1895): Bonato & Minelli 2008: 272, 285, figs 3, 5.
description: Published as part of Zapparoli, Marzio, 2009, An annotated catalogue of the epigeic and cave centipedes (Chilopoda) of Sardinia *, pp. 56-168 in Zootaxa 2318 on page 143, DOI: 10.5281/zenodo.192026
Tony Judt, Postwar. A History of Europe since 1945
Creators: name: Behrends, Jan C.
Publisher: name: Zeitschrift für Ostmitteleuropa-Forschung
Year: 2009

description: Zeitschrift für Ostmitteleuropa-Forschung, Bd. 58 Nr. 3 (2009): Vorträge der Sektion "Osteuropa" auf dem 37. Deutschen Reichshistorikertag
The dynamics of spatially confined oscillations
Creators: name: Stadtler, Till
name: Kroupa, Pavel
name: Schmid, Manfred
Publisher: name: arXiv
Year: 2021
Subjects: subject: General Physics (physics.gen-ph)
subject: FOS: Physical sciences

description: The possible relation of the wave nature of particles to gravitation as an emergent phenomenon is addressed. Hypothetical particles are considered as spatially confined oscillations (SCOs) and are constructed through the superposition of plane waves. The effect of a continuously changing refractive index (speed of propagation field) on SCOs is calculated and the continuous Ibn-Sahl--Snell law of refraction is derived. Refracted plane wave constituents of SCOs in an inhomogeneous medium cause the oscillation as a whole to accelerate as an entity. This acceleration is described by a geodesic equation, in much the same way as in general relativity. The proper time of an SCO can be defined via its oscillation frequency. The proper time and its change along the trajectory are equivalent to a particle in general relativity as described by the 0th component of its geodesic equation. An SCO in an inhomogeneous refractive index field exhibits general relativistic properties based on basic wave mechanics. Properties derived from direct calculations are length contraction, gravitational red- and blueshift and Thomas precession. The presented theory is an approximation for oscillations which are small compared to changes in the refractive index field. SCOs in an inhomogeneous medium may thus yield a naturally emerging particle-field interaction with general relativistic properties and may allow a useful vantage point on the nature of gravitation using classical-wave experiments.
description: 23 pages, 5 figures, LaTex, published by the Canadian Journal of Physics
Martina Winkler, Karel Kramář (1860-1937). Selbstbild, Fremdwahrnehmungen und Modernisierungsverständnis eines tschechischen Politikers.
Creators: name: Alexander, Manfred
Publisher: name: Zeitschrift für Ostmitteleuropa-Forschung
Year: 2003

description: Zeitschrift für Ostmitteleuropa-Forschung, Bd. 52 Nr. 2 (2003)
Lower bounds on the blow-up rate of the axisymmetric Navier-Stokes equations II
Creators: name: Chen, Chiun-Chuan
name: Strain, Robert M.
name: Tsai, Tai-Peng
name: Yau, Horng-Tzer
Publisher: name: arXiv
Year: 2007
Subjects: subject: Analysis of PDEs (math.AP)
subject: FOS: Mathematics

description: Consider axisymmetric strong solutions of the incompressible Navier-Stokes equations in $\R^3$ with non-trivial swirl. Let $z$ denote the axis of symmetry and $r$ measure the distance to the z-axis. Suppose the solution satisfies either $|v (x,t)| \le C_*{|t|^{-1/2}} $ or, for some $\e > 0$, $|v (x,t)| \le C_* r^{-1+ε} |t|^{-ε/2}$ for $-T_0\le t < 0$ and $0
description: More explanations and a new appendix
Heisenberg antiferromagnets with uniaxial exchange and cubic anisotropies in a field
Creators: name: Bannasch, G.
name: Selke, W.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: Classical Heisenberg antiferromagnets with uniaxial exchange anisotropy and a cubic anisotropy term in a field on simple cubic lattices are studied with the help of ground state considerations and extensive Monte Carlo simulations. Especially, we analyze the role of non-collinear structures of biconical type occurring in addition to the well-known antiferromagnetic and spin-flop structures. Pertinent phase diagrams are determined, and compared to previous findings.
description: 14 pages, 8 figures
Paweł Gut, Organizacja Sądownictwa w pruskiej prowincji Pomorze w latach 1806/1808-1848/49
Creators: name: Hartmann, Stefan
Publisher: name: Zeitschrift für Ostmitteleuropa-Forschung
Year: 2003

description: Zeitschrift für Ostmitteleuropa-Forschung, Bd. 52 Nr. 4 (2003)
State-of-the-art of ML-based Code Completion Approaches (2018 ~ 2021)
Creators: name: Le, Kim Tuyen
name: Andrzejak, Artur
Publisher: name: Zenodo
Year: 2021

description: We compared the state-of-the-art of Machine Learning-based code completion approaches (mostly from 2018 to 2021) Online version: SOA Code Completion The survey is used in the below paper: Kim Tuyen Le, Gabriel Rashidi, and Artur Andrzejak. A Methodology for Refined Evaluation of ML-based Code Completion Approaches. In Special Issue on Programming Language Processing, Data Mining and Knowledge Discovery. Please read the README-SOA-CodeCompletion.txt file for detailed information of structuring the SOA table.
Limited-angle TOF-PET for intraoperative surgical applications: proof of concept and first experimental data
Creators: name: Sajedi, S.
name: Blackberg, L.
name: Majewski, S.
name: Sabet, H.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Medical Physics (physics.med-ph)
subject: FOS: Physical sciences

description: Intraoperative Gamma Probe (IPG) remains the current gold standard modality for sentinel lymph node identification and tumor removal in cancer patients. However, even alongside the optical dyes they do not meet with <5% false negative rates (FNR) requirement, a key metric suggested by the American Society of Clinical Oncology (ASCO). We are aiming to reduce FNR by using time of flight (TOF) PET detector technology in the limited angle geometry system by using only two detector buckets in coincidence, where one small-area detector is placed above the patient and the other with larger detection-area, placed just under the patient bed. For proof of concept, we used two Hamamatsu TOF PET detector modules (C13500-4075YC-12) featuring 12x12 array of 4.2x4.2x20 mm3 LFS crystal pixels, one-one coupled to silicon photomultiplier (SiPM) pixels. Detector coincidence timing resolution (CTR) measured 271 ps FWHM for the whole detector. We 3D printed lesion phantom containing spheres with 2-10 mm in diameter, representing lymph nodes, and placed it inside a 10-liter warm background water phantom. Experimental results show that with sub-minute data acquisition, 6 mm diameter spheres can be identified in the image when a lesion phantom with 10:1 activity ratio to background is used. Simulation results are in good agreement with the experimental data, by resolving 6 mm diameters lesions with 60 seconds acquisition time, in 25 cm deep background water phantom with 10:1 activity ratio. The image quality improves as the CTR improves in the simulation, and with decreasing background water phantom depth or lesion to background activity ratio, in the experiment. With the results presented here we conclude that limited angle TOF PET detector is a major step forward for intraoperative applications in that, improved lesion detectability is beyond what the conventional Gamma- and NIR-based probes could achieve.
Pseudo inelastic torsional seismic analysis utilizing the modified substitute structure method
Creators: name: Tam, Ken Sau Kuen
Publisher: name: University of British Columbia
Year: 2010

description: A computational procedure for the evaluation of inelastic responses and ductility demands of three dimensional buildings subjected to multi-component earthquake excitations is presented. The modified substitute structure method is based on elastic modal analysis but is an iterative procedure which involves a fictitious linear structure whose stiffness and damping characteristics are related to the ductility demands. The building is idealized as an assembly of plane frames interconnected by rigid diaphragms. Coupling of individual frames through common columns is taken into account. It is not necessary for all storey masses to lie on a vertical line, so that structures with varying floor dimensions can be modelled. Two reinforced concrete structures of different types, moment resisting frames and coupled wall cores, are tested with the method. The accuracy of the method for predicting ductility demands and lateral deflections is determined by comparison with averaged results obtained from the time step analysis program DRAIN-TABS. The proposed method fills the void between elastic modal analysis which cannot provide information on inelastic behaviour of the structure, and full scale time step analysis which is complex and expensive to use.
Hilary L. Rubinstein (u.a.), The Jews in the Modern World. A History since 1750
Creators: name: Friedrich, Klaus-Peter
Publisher: name: Zeitschrift für Ostmitteleuropa-Forschung
Year: 2003

description: Zeitschrift für Ostmitteleuropa-Forschung, Bd. 52 Nr. 1 (2003)
Dirac Masses and Mixings in the (geo)SM(EFT) and Beyond
Creators: name: Talbert, Jim
name: Trott, Michael
Publisher: name: arXiv
Year: 2021
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We report a set of exact formulae for computing Dirac masses, mixings, and CP-violation parameter(s) from 3$\times$3 Yukawa matrices $Y$ valid when $Y Y^\dagger \rightarrow U^\dagger \,Y Y^\dagger \, U$ under global $U(3)_{Q_L}$ flavour symmetry transformations $U$. The results apply to the Standard Model Effective Field Theory (SMEFT) and its `geometric' realization (geoSMEFT). We thereby complete, in the Dirac flavour sector, the catalogue of geoSMEFT parameters derived at all orders in the $\sqrt{2 \langle H^\dagger H \rangle} / Λ$ expansion. The formalism is basis-independent, and can be applied to models with decoupled ultraviolet flavour dynamics, as well as to models whose infrared dynamics are not minimally flavour violating. We highlight these points with explicit examples and, as a further demonstration of the formalism's utility, we derive expressions for the renormalization group flow of quark masses, mixings, and CP-violation at all mass dimension and perturbative loop orders in the (geo)SM(EFT) and beyond.
description: Matches published version
On the anatomy of multi-spin magnon and single spike string solutions
Creators: name: Dimov, H.
name: Rashkov, R. C.
Publisher: name: arXiv
Year: 2007
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We study rigid string solutions rotating in $AdS_5\times S^5$ background. For particular values of the parameters of the solutions we find multispin solutions corresponding to giant magnons and single spike strings. We present an analysis of the dispersion relations in the case of three spin solutions distributed only in $S^5$ and the case of one spin in $AdS_5$ and two spins in $S^5$. The possible relation of these string solutions to gauge theory operators and spin chains are briefly discussed.
description: 45 pages, the presentation rearranged in 3 sections, results unchanged, references added, some typos corrected
Spatial and Temporal Variations of the Chandra ACIS Particle-Induced Background and Development of a Spectral-Model Generation Tool
Creators: name: Suzuki, Hiromasa
name: Plucinsky, Paul P.
name: Gaetz, Terrance J.
name: Bamba, Aya
Publisher: name: arXiv
Year: 2021
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: FOS: Physical sciences

description: In X-ray observations, estimation of the particle-induced background is important especially for faint and/or diffuse sources. Although software exists to generate total (sky and detector) background data suitable for a given Chandra ACIS observation, no public software exists to model the particle-induced background separately. We aim to understand the spatial and temporal variations of the particle-induced background of Chandra ACIS obtained in the two data modes, VFAINT and FAINT. Observations performed with ACIS in the stowed position shielded from the sky and the Chandra Deep Field South data sets are used. The spectra are modeled with a combination of the instrumental lines of Al, Si, Ni, and Au and continuum components. Similar spatial variations of the spectral shape are found in VFAINT and FAINT data, which are mainly due to inappropriate correction of charge transfer inefficiency for events that convert in the frame-store regions as explained by Bartalucci et al. 2014. Temporal variation of the spectral hardness ratio is found to be $\sim 10\%$ at maximum, which seems to be largely due to solar activity. We model this variation by modifying the spectral hardnesses according to the total count rate. Incorporating these properties, we have developed a tool ``mkacispback'' to generate the particle-induced background spectral model corresponding to an arbitrary celestial observation. As an example application, we use the background spectrum produced by the mkacispback tool in an analysis of the Cosmic X-ray Background in the CDF-S observations. We find an intensity of 3.10 (2.98--$3.21)\times 10^{-12}$ erg s$^{-1}$ cm$^{-2}$ deg$^{-2}$ in the 2--8 keV band, consistent with or lower than previous estimates. The tool mkacispback is available at https://github.com/hiromasasuzuki/mkacispback.
description: 23 pages, 26 figures, accepted for publication in A&A
Igor-Philip Matic, Edmund Veesenmayer. Agent und Diplomat der nationalsozialistischen Expansionspolitik
Creators: name: Tönsmeyer, Tatjana
Publisher: name: Zeitschrift für Ostmitteleuropa-Forschung
Year: 2003

description: Zeitschrift für Ostmitteleuropa-Forschung, Bd. 52 Nr. 4 (2003)
How the Scalar Field of Unified Dark Matter Models Can Cluster
Creators: name: Bertacca, Daniele
name: Bartolo, Nicola
name: Diaferio, Antonaldo
name: Matarrese, Sabino
Publisher: name: arXiv
Year: 2008
Subjects: subject: Astrophysics (astro-ph)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We use scalar-field Lagrangians with a non-canonical kinetic term to obtain unified dark matter models where both the dark matter and the dark energy, the latter mimicking a cosmological constant, are described by the scalar field itself. In this framework, we propose a technique to reconstruct models where the effective speed of sound is small enough that the scalar field can cluster. These models avoid the strong time evolution of the gravitational potential and the large Integrated Sachs-Wolfe effect which have been a serious drawback of previously considered models. Moreover, these unified dark matter scalar field models can be easily generalized to behave as dark matter plus a dark energy component behaving like any type of quintessence fluid.
description: 26 pages, 1 figure
Corporate governance and firm performance within the Russian agri-food sector: does ownership structure matter?
Creators: name: Tleubayev, Alisher
name: Bobojonov, Ihtiyor
name: Gagalyuk, Taras
name: Meca, Emma Garcia
name: Glauben, Thomas
name: Tleubayev, Alisher
name: Bobojonov, Ihtiyor
name: Gagalyuk, Taras
name: Meca, Emma Garcia
name: Glauben, Thomas
Publisher: name: Unknown
Year: 2020
Subjects: subject: Agribusiness
subject: International Development
subject: corporate governance
subject: ownership structure
subject: agri-food enterprises
subject: firm performance
subject: Russia

description: This article provides pioneering empirical evidence on the ownership structure and firm performance relationship for the case of corporate agri-food companies in Russia. While Russia plays a vital role in the global agri-food system, its domestic agri-food production is evidently dominated by a small number of corporate enterprises, which are in turn characterized by high ownership concentration. We employ unique panel data obtained from 203 companies for the years between 2012 and 2017. A random effects model was used to analyze the impacts of ownership concentration and ownership identity on the firms’ financial performance, measured by return on assets and return on sales. Our results indicate an inverse U-shaped association between ownership concentration and firm performance, with average level of ownership concentration found to be on the descending range of the inverse U-shaped curve. Moreover, we observe a similar quadratic relationship between ownership concentration by government and directors and firm performance. On average, ownership by directors was found to be on the ascending range and below the peak point, suggesting a potential for further performance improvement, while the impact of agroholding ownership was found to be linear and positive.
Stenotaenia
Creators: name: Zapparoli, Marzio
Publisher: name: Zenodo
Year: 2009
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Chilopoda
Geophilomorpha
Geophilidae
Stenotaenia

description: 52. Stenotaenia sorrentina (Attems, 1903)
 1) Geophilus forficularius Fanzago 1881a: 378.
 2) Geophilus forficularius Fanzg.: Fanzago 1881b: 13.
 3) Clinopodes linearis (C.L. Koch, 1835): Minelli 1978a: 158. 4) Clinopodes linearis (C.L. Koch, 1835): Minelli 1983a: 8. 5) Clinopodes linearis (C.L. Koch 1835): Minelli 1983b: 406. 6) Geophilus linearis: Minelli & Iovane 1987: 28.
 7) Geophilus linearis (C.L. Koch, 1835): Minelli et al. 1994: 496. 8) Geophilus abbreviatus Verhoeff, 1925: Foddai et al. 1995: 9. 9) Geophilus linearis C.L. Koch, 1835: Foddai et al. 1995: 10.
 10) Geophilus abbreviatus Verhoeff, 1925: Foddai et al. 1996: 361, tab. I.
 11) Geophilus linearis C.L. Koch, 1835: Foddai et al. 1996: 361, tab. I.
 12) Geophilus abbreviatus Verhoeff, 1925: Zapparoli & Minelli 2005: CD. 13) Geophilus linearis C.L. Koch, 1835: Zapparoli & Minelli 2005: CD.
 14) Stenotaenia sorrentina (Attems, 1903): Bonato & Minelli 2008: 273, 286, fig. 6.
description: Published as part of Zapparoli, Marzio, 2009, An annotated catalogue of the epigeic and cave centipedes (Chilopoda) of Sardinia *, pp. 56-168 in Zootaxa 2318 on pages 143-144, DOI: 10.5281/zenodo.192026
The paraboson Fock space and unitary irreducible representations of the Lie superalgebra osp(1|2n)
Creators: name: Lievens, S.
name: Stoilova, N. I.
name: Van der Jeugt, J.
Publisher: name: arXiv
Year: 2007
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Mathematical Physics (math-ph)
subject: Group Theory (math.GR)
subject: Representation Theory (math.RT)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences
subject: FOS: Mathematics

description: It is known that the defining relations of the orthosymplectic Lie superalgebra osp(1|2n) are equivalent to the defining (triple) relations of n pairs of paraboson operators $b^\pm_i$. In particular, with the usual star conditions, this implies that the ``parabosons of order p'' correspond to a unitary irreducible (infinite-dimensional) lowest weight representation V(p) of osp(1|2n). Apart from the simple cases p=1 or n=1, these representations had never been constructed due to computational difficulties, despite their importance. In the present paper we give an explicit and elegant construction of these representations V(p), and we present explicit actions or matrix elements of the osp(1|2n) generators. The orthogonal basis vectors of V(p) are written in terms of Gelfand-Zetlin patterns, where the subalgebra u(n) of osp(1|2n) plays a crucial role. Our results also lead to character formulas for these infinite-dimensional osp(1|2n) representations. Furthermore, by considering the branching $ osp(1|2n) \supset sp(2n) \supset u(n)$, we find explicit infinite-dimensional unitary irreducible lowest weight representations of sp(2n) and their characters.
description: typos corrected
Terra Scepusiensis. Stav bádania o dejinách Spiša - Stan badań nad dziejami Spiszu
Creators: name: Irgang, Winfried
Publisher: name: Zeitschrift für Ostmitteleuropa-Forschung
Year: 2005

description: Zeitschrift für Ostmitteleuropa-Forschung, Bd. 54 Nr. 2 (2005)
Krieg und seine Folgen
Creators: name: Friedrich, Klaus-Peter
Publisher: name: Zeitschrift für Ostmitteleuropa-Forschung
Year: 2009

description: Zeitschrift für Ostmitteleuropa-Forschung, Bd. 58 Nr. 3 (2009): Vorträge der Sektion "Osteuropa" auf dem 37. Deutschen Reichshistorikertag
Electric-field control of a single-atom polar bond
Creators: name: Omidian, M.
name: Leitherer, S.
name: Neel, N.
name: Brandbyge, M.
name: Kröger, J.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: The polar covalent bond between a single Au atom terminating the apex of an atomic force microscope tip and a C atom of graphene on SiC(0001) is exposed to an external electric field. For one field orientation the Au-C bond is strong enough to sustain the mechanical load of partially detached graphene, whilst for the opposite orientation the bond breaks easily. Calculations based on density functional theory and nonequilibrium Green's function methods support the experimental observations by unveiling bond forces that reflect the polar character of the bond. Field-induced charge transfer between the atomic orbitals modifies the polarity of the different electronegative reaction partners and the Au-C bond strength.
The link between coherence echoes and mode locking
Creators: name: Eydam, Sebastian
name: Wolfrum, ##!Error: Attribute  Unknown!##
Publisher: name: Weierstrass Institute
Year: 2019
Subjects: subject: phase oscillators
subject: mode-locking
subject: 34C15
subject: 37N20
subject: 42.60.Fc
subject: 05.45.Xt
subject: 05.45.-a

description: We investigate the appearance of sharp pulses in the mean field of Kuramoto-type globally- coupled phase oscillator systems. In systems with exactly equidistant natural frequencies self- organized periodic pulsations of the mean field, called mode locking, have been described re- cently as a new collective dynamics below the synchronization threshold. We show here that mode locking can appear also for frequency combs with modes of finite width, where the natu- ral frequencies are randomly chosen from equidistant frequency intervals. In contrast to that, so called coherence echoes, which manifest themselves also as pulses in the mean field, have been found in systems with completely disordered natural frequencies as the result of two consecutive stimulations applied to the system. We show that such echo pulses can be explained by a stimula- tion induced mode locking of a subpopulation representing a frequency comb. Moreover, we find that the presence of a second harmonic in the interaction function, which can lead to the global stability of the mode-locking regime for equidistant natural frequencies, can enhance the echo phenomenon significantly. The non-monotonous behavior of echo amplitudes can be explained as a result of the linear dispersion within the self-organized mode-locked frequency comb. Fi- nally we investigate the effect of small periodic stimulations on oscillator systems with disordered natural frequencies and show how the global coupling can support the stimulated pulsation by increasing the width of locking plateaus.
Tuoba poseidonis Verhoeff 1901
Creators: name: Zapparoli, Marzio
Publisher: name: Zenodo
Year: 2009
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Chilopoda
Geophilomorpha
Geophilidae
Tuoba
Tuoba poseidonis

description: 53. Tuoba poseidonis (Verhoeff, 1901)
 1) Clinopodes poseidonis (Verhoeff, 1901): Minelli 1978a: 158. 2) Clinopodes poseidonis (Verhoeff, 1901): Minelli 1983a: 8. 3) Clinopodes poseidonis (Verh. 1901): Minelli 1983b: 406.
 4) Geophilus poseidonis: Foddai et al. 1994: 14.
 5) Clinopodes poseidonis (Verhoeff, 1901): Minelli et al. 1994: 497. 6) Geophilus poseidonis Verhoeff, 1901: Foddai et al. 1995: 10.
 7) Geophilus poseidonis Verhoeff, 1901: Foddai et al. 1996: 361, tab. I. 8) Geophilus poseidonis Verhoeff, 1901: Zapparoli & Minelli 2005: CD.
description: Published as part of Zapparoli, Marzio, 2009, An annotated catalogue of the epigeic and cave centipedes (Chilopoda) of Sardinia *, pp. 56-168 in Zootaxa 2318 on pages 144-145, DOI: 10.5281/zenodo.192026
Institutions and individual values motivating corporate social responsibility activities in large farms and agroholdings
Creators: name: Hajdu, Anna
name: Daziano, Marcos F.
name: Visser, Oane
name: Hajdu, Anna
name: Daziano, Marcos F.
name: Visser, Oane
Publisher: name: Unknown
Year: 2021
Subjects: subject: Agribusiness
subject: Agricultural and Food Policy
subject: Argentina
subject: large-scale farms
subject: social issues
subject: grounded theory
subject: large-scale land acquisitions

description: Corporate social responsibility (CSR) activities have been shown to derive from external and internal motivations of a company. Little attention has been given to motivations of managers in large farms and agroholdings to undertake CSR activities thanks to individual values and pressure from institutions. We therefore investigate the types of CSR activities conducted by 18 managers in large farms and agroholdings in Argentina. We underline their perception of social issues and their motivations to do CSR activities. The framework developed in this paper shows that given the lack of pressure from national-level formal and other informal institutions, individual values (informal institutions) and international institutions (certification schemes-formal institutions) carry more weight in managers’ decision to do CSR activities. While some of these motivations have an instrumental background, they overlap with normative motivations that underlie the business activity.
On Modelling a Relativistic Hierarchical (Fractal) Cosmology by Tolman's Spacetime. III. Numerical Results
Creators: name: Ribeiro, Marcelo B.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Astrophysics (astro-ph)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: This paper presents numerical solutions of particular Lemaitre-Tolman models approximating a fractal behaviour along the past light cone, as discussed in paper I (0807.0866) of this series. The initial conditions of the numerical problem are discussed and the algorithm used to carry out the numerical integrations is presented. It was found that the numerical solutions are stiff across the flat-curved interface necessary to obtain the initial conditions of the problem. The spatially homogeneous Friedmann models are treated as special cases of the Lemaitre-Tolman solution and solved numerically. Extending the results of paper II (0807.0869) on the Einstein-de Sitter model, to the $K = \pm 1$ models, it was found that the open and closed Friedmann models also do not appear to remain homogeneous along the backward null cone, with a vanishing volume (average) density as one approaches the Big Bang singularity hypersurface. Fractal solutions, that is, solutions representing an averaged and smoothed-out single fractal, were obtained in all three classes of the Lemaitre-Tolman metric, but only the hyperbolic ones were found to be in agreement with observations, meaning that a possible Friedmann background universe would have to be an open one. The best fractal metric obtained through numerical simulations is also analysed in terms of evolution, homothetic self-similarity, comparison with the respective spatially homogeneous case and the fitting problem in cosmology. The paper finishes with a discussion on some objections raised by some authors against a fractal cosmology.
description: 57 pages. 22 figures. LaTeX. Paper published in 1993. The numerical code used in this paper is discussed in gr-qc/0205095
Multi-wavelength Observations of Sgr A*. I. 2019 July 18
Creators: name: Michail, Joseph M.
name: Wardle, Mark
name: Yusef-Zadeh, Farhad
name: Kunneriath, Devaky
Publisher: name: arXiv
Year: 2021
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: We present and analyze ALMA submillimeter observations from a multi-wavelength campaign of Sgr A* during 18 July 2019. In addition to the submillimeter, we utilize concurrent mid-IR (Spitzer) and X-ray (Chandra) observations. The submillimeter emission lags less than $δt\approx30$ minutes behind the mid-IR data. However, the entire submillimeter flare was not observed, raising the possibility that the time delay is a consequence of incomplete sampling of the light curve. The decay of the submillimeter emission is not consistent with synchrotron cooling. Therefore, we analyze these data adopting an adiabatically expanding synchrotron source that is initially optically thick or thin in the submillimeter, yielding time-delayed or synchronous flaring with the IR, respectively. The time-delayed model is consistent with a plasma blob of radius $0.8~R_{\text{S}}$ (Schwarzschild radius), electron power-law index $p=3.5$ ($N(E)\propto E^{-p}$), equipartition magnetic field of $B_{\text{eq}}\approx90$ Gauss, and expansion velocity $v_{\text{exp}}\approx0.004c$. The simultaneous emission is fit by a plasma blob of radius $2~R_{\text{S}}$, $p=2.5$, $B_{\text{eq}}\approx27$ Gauss, and $v_{\text{exp}}\approx0.014c$. Since the submillimeter time delay is not completely unambiguous, we cannot definitively conclude which model better represents the data. This observation presents the best evidence for a unified flaring mechanism between submillimeter and X-ray wavelengths and places significant constraints on the source size and magnetic field strength. We show that concurrent observations at lower frequencies would be able to determine if the flaring emission is initially optically thick or thin in the submillimeter.
description: 9 pages, 5 figures, Accepted to ApJ. Major updates since original submitted version: 1. Correction of mismatching time coordinate systems, 2. Added text discussing time delay error bars, 3. Made text more model-agnostic with respect to time delayed or simultaneous emission. Second revision edits are grammatic in style with updated references
Determinants of corporate social responsibility among farms in Russia and Kazakhstan: a multilevel approach using survey data
Creators: name: Hajdu, Anna
name: Gagalyuk, Taras
name: Bukin, Eduard
name: Petrick, Martin
name: Hajdu, Anna
name: Gagalyuk, Taras
name: Bukin, Eduard
name: Petrick, Martin
Publisher: name: Unknown
Year: 2021
Subjects: subject: Industrial Organization
subject: International Development
subject: corporate social responsibility
subject: primary agriculture
subject: organizational-level factors
subject: institutional-level factors
subject: transition economies

description: Building on the institutional theory of corporate social responsibility (CSR) and research on CSR in the agriculture of post-Soviet transition economies, the present paper investigates the institutional, organizational and individual factors of farm engagement in CSR activities. Based on a survey of 800 farms in Russia and Kazakhstan, the interaction between the farms’ social role and multilevel institutional characteristics is addressed. We observe notable positive effects of local labor sourcing, insecure land use conditions and farm size (in terms of land area) on farms’ CSR engagement. Individually owned farms, as opposed to corporate farms, tend to be more CSR affine. In addition, we find weak statistical evidence of CSR engagement among the farms affiliated with agroholdings. We discuss the results in the context of different levels of CSR analysis.
Jan Gebhart, Jan Kuklík, Druhá republika 1938-1939. Svár demokracie a totality v politickém, společenském a kulturním životě
Creators: name: Küpper, René
Publisher: name: Zeitschrift für Ostmitteleuropa-Forschung
Year: 2005

description: Zeitschrift für Ostmitteleuropa-Forschung, Bd. 54 Nr. 2 (2005)
The Unusual Distributions of Ionized Material and Molecular Hydrogen in NGC 6881: Signposts of Multiple Events of Bipolar Ejection in a Planetary Nebula
Creators: name: Ramos-Larios, G.
name: Guerrero, M. A.
name: Miranda, L. F.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: The planetary nebula NGC 6881 displays in the optical a quadrupolar morphology consisting of two pairs of highly collimated bipolar lobes aligned along different directions. An additional bipolar ejection is revealed by the hydrogen molecular emission, but its wide hourglass morphology is very different from that of the ionized material. To investigate in detail the spatial distribution of molecular hydrogen and ionized material within NGC 6881, and to determine the prevalent excitation mechanism of the H2 emission, we have obtained new near-IR Br-gamma and H2 and optical H-alpha and [N II] images, as well as intermediate resolution JHK spectra. These observations confirm the association of the H2 bipolar lobes to NGC 6881 and find that the prevalent excitation mechanism is collisional. The detailed morphology and very different collimation degree of the H2 and ionized bipolar lobes of NGC 6881 not only imply that multiple bipolar ejections have occurred in this nebula, but also that the dominant shaping agent is different for each bipolar ejection: a bipolar stellar wind most likely produced the H2 lobes, while highly collimated outflows are carving out the ionized lobes into the thick circumstellar envelope. The asymmetry between the southeast and northwest H2 bipolar lobes suggests the interaction of the nebula with an inhomogeneous interstellar medium. We find evidence that places NGC 6881 in the H II region Sh 2-109 along the Orion local spiral arm.
description: 9 pages, 7 figures, 4 tables
Landau-Khalatnikov-Fradkin transformations for the two loop massless quark propagator
Creators: name: Dall'Olio, Pietro
name: De Meerleer, Tim
name: Dudal, David
name: Sorella, Silvio Paolo
name: Bashir, Adnan
Publisher: name: arXiv
Year: 2021
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: Landau-Khalatnikov-Fradkin transformations (LKFTs) yield the gauge dependence of correlation functions within the class of linear covariant gauges. We derive the LKFT for the quark propagator and explicitly evaluate it up to the two loop level in the chiral limit. Although the number of diagrams to be evaluated is significantly larger than with the conventional computational scheme, the diagrams are simpler in nature, thereby leading to a considerably faster evaluation of the gauge dependent part than naively expected. Finally, we also resum the LKFT generated terms and compare our results with earlier work in the literature.
description: arXiv admin note: text overlap with arXiv:1911.01907 Correcting typos. We added a few comments and the diagrammatic representation of the Feynman rules, according to the referee's requests
Geophilomorpha
Creators: name: Zapparoli, Marzio
Publisher: name: Zenodo
Year: 2009
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Chilopoda
Geophilomorpha

description: Geophilomorpha indet.   1) Geophilus sp.: A. Costa 1882: 28.
 2) Geophilus sp.: A. Costa 1883: 81.
3) Geophilidae indet.: Cherri 1977: 19.
 4) Geophilus sp.: De Miranda Restivo & Guaita 1986: 35. 5) Geophilidae indet.: Grafitti & De Waele 1996: 33. 6) Geofilomorfi: Lana et al. 2006: 45.
7) Geophilidae [indet.]: Grafitti 2007b: 224, 226, 227.
description: Published as part of Zapparoli, Marzio, 2009, An annotated catalogue of the epigeic and cave centipedes (Chilopoda) of Sardinia *, pp. 56-168 in Zootaxa 2318 on page 145, DOI: 10.5281/zenodo.192026