cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Crown formation from a cavitating bubble close to a free surface
Creators: name: Saade, Youssef
name: Jalaal, Maziyar
name: Prosperetti, Andrea
name: Lohse, Detlef
Publisher: name: arXiv
Year: 2021
Subjects: subject: Fluid Dynamics (physics.flu-dyn)
subject: Computational Physics (physics.comp-ph)
subject: FOS: Physical sciences

description: A rapidly growing bubble close to a free surface induces jetting: a central jet protruding outwards and a crown surrounding it at later stages. While the formation mechanism of the central jet is known and documented, that of the crown remains unsettled. We perform axisymmetric simulations of the problem using the free software program basilisk, where a finite-volume compressible solver has been implemented, that uses a geometric Volume-of-Fluid method (VoF) for the tracking of the interface. We show that the mechanism of crown formation is a combination of a pressure distortion over the curved interface, inducing flow focusing, and of a flow reversal, caused by the second expansion of the toroidal bubble that drives the crown. The work culminates in a parametric study with the Weber number, the Reynolds number, the pressure ratio and the dimensionless bubble distance to the free surface as control parameters. Their effects on both the central jet and the crown are explored. For high Weber numbers, we observe the formation of weaker "secondary crowns", highly correlated with the third oscillation cycle of the bubble.
Upstairs, downstairs: spatial regulation of Hippo signalling
Creators: name: Fulford, Alexander
name: Tapon, Nicolas
name: Ribeiro, Paulo S
Publisher: name: The Francis Crick Institute
Year: 2021
Subjects: Model organisms
Tumour Biology
Signalling & Oncogenes
Gene Expression
Genetics & Genomics
Developmental Biology
Cell Cycle & Chromosomes
Chemical Biology & High Throughput

description: Cellular signalling lies at the heart of every decision involved in the development and homeostasis of multicellular organisms. The Hippo pathway was discovered nearly two decades ago through seminal work in Drosophila and rapidly emerged as a crucial signalling network implicated in developmental and oncogenic growth, tissue regeneration and stem cell biology. Here, we review recent advances in the field relating to the upstream regulation of Hippo signalling and the intracellular tug-of-war that tightly controls its main target, the transcriptional co-activator Yorkie/YAP.
Time Dependence of Hawking Radiation Entropy
Creators: name: Page, Don N.
Publisher: name: arXiv
Year: 2013
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: If a black hole starts in a pure quantum state and evaporates completely by a unitary process, the von Neumann entropy of the Hawking radiation initially increases and then decreases back to zero when the black hole has disappeared. Here numerical results are given for an approximation to the time dependence of the radiation entropy under an assumption of fast scrambling, for large nonrotating black holes that emit essentially only photons and gravitons. The maximum of the von Neumann entropy then occurs after about 53.81% of the evaporation time, when the black hole has lost about 40.25% of its original Bekenstein-Hawking (BH) entropy (an upper bound for its von Neumann entropy) and then has a BH entropy that equals the entropy in the radiation, which is about 59.75% of the original BH entropy 4 pi M_0^2, or about 7.509 M_0^2 \approx 6.268 x 10^{76}(M_0/M_sun)^2, using my 1976 calculations that the photon and graviton emission process into empty space gives about 1.4847 times the BH entropy loss of the black hole. Results are also given for black holes in initially impure states. If the black hole starts in a maximally mixed state, the von Neumann entropy of the Hawking radiation increases from zero up to a maximum of about 119.51% of the original BH entropy, or about 15.018 M_0^2 \approx 1.254 x 10^{77}(M_0/M_sun)^2, and then decreases back down to 4 pi M_0^2 = 1.049 x 10^{77}(M_0/M_sun)^2.
description: 50 pages, LaTeX; results added for black holes initially in impure states
Feststellungen über eine europäische „Lunulamode"
Creators: name: Kleemann, Otto
Publisher: name: Germania : Anzeiger der Römisch-Germanischen Kommission des Deutschen Archäologischen Instituts
Year: 2018

description: -
description: Germania : Anzeiger der Römisch-Germanischen Kommission des Deutschen Archäologischen Instituts, Bd. 31, Nr. 3/4 (1953)
A Local Diagnosis Algorithm for Hypercube-like Networks under the BGM Diagnosis Model
Creators: name: Lin, Cheng-Kuan
name: Kung, Tzu-Liang
name: Hung, Chun-Nan
name: Teng, Yuan-Hsiang
Publisher: name: arXiv
Year: 2021
Subjects: subject: Discrete Mathematics (cs.DM)
subject: FOS: Computer and information sciences

description: System diagnosis is process of identifying faulty nodes in a system. An efficient diagnosis is crucial for a multiprocessor system. The BGM diagnosis model is a modification of the PMC diagnosis model, which is a test-based diagnosis. In this paper, we present a specific structure and propose an algorithm for diagnosing a node in a system under the BGM model. We also give a polynomial-time algorithm that a node in a hypercube-like network can be diagnosed correctly in three test rounds under the BGM diagnosis model.
Origin of the phase transition in IrTe2: structural modulation and local bonding instability
Creators: name: Cao, Huibo
name: Chakoumakos, Bryan C.
name: Chen, Xin
name: Yan, Jiaqiang
name: McGuire, Michael A.
name: Yang, Hui
name: Custelcean, Radu
name: Zhou, Haidong
name: Singh, David J.
name: Mandrus, David
Publisher: name: arXiv
Year: 2013
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences
subject: 74.70.-b, 74.70.Xa, 74.40.Kb, 74.62.Bf, 74.70.Ad

description: We used X-ray/neutron diffraction to determine the low temperature (LT) structure of IrTe2. A structural modulation was observed with a wavevector of k =(1/5, 0, 1/5) below Ts?285 K, accompanied by a structural transition from a trigonal to a triclinic lattice. We also performed the first principles calculations for high temperature (HT) and LT structures, which elucidate the nature of the phase transition and the LT structure. A local bonding instability associated with the Te 5p states is likely the origin of the structural phase transition in IrTe2.
description: 6 pages, 6 figures
Regulation of CHS during the cross-talk between UV-B and MAMP triggered immunity
Creators: name: Mijailovic, Nikola
Publisher: name: Zenodo
Year: 2016
Subjects: crosstalk between abiotic and biotic stress
flg22
UV-B
MAMP-triggered immunity
Induced Resistance (IR)

description: Master´s Thesis University of Kiel, Faculty of Agricultural and Nutritional Sciences
 Institute of Phytopathology
 Department of Molecular Phytopathology and Biotechnology

 International Masters Program "AgriGenomics"
Instability of a dusty Kolmogorov flow
Creators: name: Sozza, Alessandro
name: Cencini, Massimo
name: Musacchio, Stefano
name: Boffetta, Guido
Publisher: name: arXiv
Year: 2021
Subjects: subject: Fluid Dynamics (physics.flu-dyn)
subject: FOS: Physical sciences

description: Suspended particles can significantly alter the fluid properties and, in particular, can modify the transition from laminar to turbulent flow. We investigate the effect of heavy particle suspensions on the linear stability of the Kolmogorov flow by means of a multiple scale expansion of the Eulerian model originally proposed by Saffman (1962). We find that, while at small Stokes numbers particles always destabilize the flow (as already predicted by Saffman in the limit of very thin particles), at sufficiently large Stokes numbers the effect is non-monotonic in the particle mass fraction and particles can both stabilize and destabilize the flow. Numerical analysis is used to validate the analytical predictions. We find that in a region of the parameter space the multiple-scale expansion overestimates the stability of the flow and that this is a consequence of the breakdown of the scale separation assumptions.
description: 12 pages, 3 figures
Die Heuneburg beim Talhof. Vorläufige Ergebnisse der Grabungen 1950—1953
Creators: name: Dehn, Wolfgang
name: Sangmeister, Edward
Publisher: name: Germania : Anzeiger der Römisch-Germanischen Kommission des Deutschen Archäologischen Instituts
Year: 2018

description: -
description: Germania : Anzeiger der Römisch-Germanischen Kommission des Deutschen Archäologischen Instituts, Bd. 32, Nr. 1/2 (1954)
Linear stability of a rotating liquid column revisited
Creators: name: Dubey, Pulkit
name: Roy, Anubhab
name: Subramanian, Ganesh
Publisher: name: arXiv
Year: 2021
Subjects: subject: Fluid Dynamics (physics.flu-dyn)
subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences
subject: J.2
subject: 76B45, 76B47

description: We revisit the somewhat classical problem of the linear stability of a rigidly rotating liquid column in this communication. Although literature pertaining to this problem dates back to 1959, the relation between inviscid and viscous stability criteria has not yet been clarified. While the viscous criterion for stability, given by $We = n^2+k^2-1$, is both necessary and sufficient, this relation has only been shown to be sufficient in the inviscid case. Here, $We = ρΩ^2 a^3/γ$ is the Weber number and measures the relative magnitudes of the centrifugal and surface tension forces, with $Ω$ being the angular velocity of the rigidly rotating column, $a$ the column radius, $ρ$ the density of the fluid, and $γ$ the surface tension coefficient; $k$ and $n$ denote the axial and azimuthal wavenumbers of the imposed perturbation. We show that the subtle difference between the inviscid and viscous criteria arises from the surprisingly complicated picture of inviscid stability in the $We-k$ plane. For all $n >1$, the viscously unstable region, corresponding to $We > n^2+k^2-1$, contains an infinite hierarchy of inviscidly stable islands ending in cusps, with a dominant leading island. Only the dominant island, now infinite in extent along the $We$ axis, persists for $n= 1$. This picture may be understood, based on the underlying eigenspectrum, as arising from the cascade of coalescences between a retrograde mode, that is the continuation of the cograde surface-tension-driven mode across the zero Doppler frequency point, and successive retrograde Coriolis modes constituting an infinite hierarchy.
description: 22 pages, 13 figures
Free expansion of quasi-2D Bose-Einstein condensates with quantized vortices
Creators: name: Seo, Sang Won
name: Choi, Jae-yoon
name: Shin, Yong-il
Publisher: name: arXiv
Year: 2013
Subjects: subject: Quantum Gases (cond-mat.quant-gas)
subject: FOS: Physical sciences

description: We observe that a density-depleted vortex core evolves into concentric density ripples in a freely expanding quasi-two-dimensional Bose-Einstein condensate. The atomic density of the expanding condensate rapidly reduces due to the fast expansion along the tightly confining axial direction, and thus the transverse expansion of the condensate is not significantly affected by the atom-atom interactions. We find that the observed density profiles of the vortex cores are in good quantitative agreement with numerical simulations assuming no interactions. We analyze the defocused images of the vortex cores, where defocussing is caused by the free fall of the condensate during the expansion time. In the defocused images, the vortex core becomes magnified and appears to be filled after a certain expansion time which depends on the vortex charge number.
description: 5 pages, 4 figures
Neolithische Siedlung in Lauenburg-Elbkamp, Kr. Herzogtum Lauenburg
Creators: name: Aner, Ekkehard
Publisher: name: Germania : Anzeiger der Römisch-Germanischen Kommission des Deutschen Archäologischen Instituts
Year: 2018

description: -
description: Germania : Anzeiger der Römisch-Germanischen Kommission des Deutschen Archäologischen Instituts, Bd. 32, Nr. 1/2 (1954)
The rate of convergence of the hyperbolic density on sequences of domains
Creators: name: Lakic, Nikola
name: Markowsky, Greg
Publisher: name: arXiv
Year: 2012
Subjects: subject: Complex Variables (math.CV)
subject: FOS: Mathematics

description: It is known that if a sequence of domains $U_n$ converges to a domain $U$ in the Caratheodory sense then the hyperbolic densities on $U_n$ converge to the hyperbolic density on $U$. In this paper, we study the rate of convergence of the hyperbolic density under a slightly different mode of convergence. In doing so, we are led to consider two other densities on domains, the Teichmueller density and the three-point density. We obtain several results which give rates of convergence in various scenarios.
On the determination of vortex ring vorticity using Lagrangian particles
Creators: name: Outrata, O.
name: Pavelka, M.
name: Hron, J.
name: La Mantia, M.
name: Polanco, J. I.
name: Krstulovic, G.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Fluid Dynamics (physics.flu-dyn)
subject: Other Condensed Matter (cond-mat.other)
subject: FOS: Physical sciences

description: Particles are a widespread tool for obtaining information from fluid flows. When Eulerian data are unavailable, they may be employed to estimate flow fields or to identify coherent flow structures. Here we numerically examine the possibility of using particles to capture the dynamics of isolated vortex rings propagating in a quiescent fluid. The analysis is performed starting from numerical simulations of the Navier--Stokes and the Hall--Vinen--Bekarevich--Khalatnikov equations, respectively describing the dynamics of a Newtonian fluid and a finite-temperature superfluid. The flow-induced positions and velocities of particles suspended in the fluid are specifically used to compute the Lagrangian pseudovorticity field, a proxy for the Eulerian vorticity field recently employed in the context of superfluid $^4$He experiments. We show that, when calculated from ideal Lagrangian tracers or from particles with low inertia, the pseudovorticity field can be accurately used to estimate the propagation velocity and the growth of isolated vortex rings, although the quantitative reconstruction of the corresponding vorticity fields remains challenging. On the other hand, particles with high inertia tend to preferentially sample specific flow regions, resulting in biased pseudovorticity fields that pollute the estimation of the vortex ring properties. Overall, this work neatly demonstrates that the Lagrangian pseudovorticity is a valuable tool for estimating the strength of macroscopic vortical structures in the absence of Eulerian data, which is, for example, the case of superfluid $^4$He experiments.
Eine spezifische Bestattungsform der nordwestdeutschen Einzelgrabkultur (Randbestattungen an Kreisgräben)
Creators: name: Asmus, Wolfgang-Dietrich
Publisher: name: Germania : Anzeiger der Römisch-Germanischen Kommission des Deutschen Archäologischen Instituts
Year: 2018

description: -
description: Germania : Anzeiger der Römisch-Germanischen Kommission des Deutschen Archäologischen Instituts, Bd. 32, Nr. 3 (1954)
Exposing Toxoplasma gondii hiding inside the vacuole: a role for GBPs, autophagy and host cell death
Creators: name: Saeij, Jeroen P
name: Frickel, Eva Maria
Publisher: name: The Francis Crick Institute
Year: 2021
Subjects: subject: Model organisms
subject: Infectious Disease
subject: Immunology
subject: FOS: Clinical medicine
subject: Cell Biology

description: The intracellular parasite Toxoplasma gondii resides inside a vacuole, which shields it from the host's intracellular defense mechanisms. The cytokine interferon gamma (IFNγ) upregulates host cell effector pathways that are able to destroy the vacuole, restrict parasite growth and induce host cell death. Interferon-inducible GTPases such as the Guanylate Binding Proteins (GBPs), autophagy proteins and ubiquitin-driven mechanisms play important roles in Toxoplasma control in mice and partly also in humans. The host inflammasome is regulated by GBPs in response to bacterial infection in murine cells and may also respond to Toxoplasma infection. Elucidation of murine Toxoplasma defense mechanisms are guiding studies on human cells, while inevitably leading to the discovery of human-specific pathways that often function in a cell type-dependent manner.
Efficient algorithms for maximum induced matching problem in permutation and trapezoid graphs
Creators: name: Nguyen, Viet Dung
name: Pham, Ba Thai
name: Do, Phan Thuan
Publisher: name: arXiv
Year: 2021
Subjects: subject: Data Structures and Algorithms (cs.DS)
subject: Discrete Mathematics (cs.DM)
subject: FOS: Computer and information sciences

description: We first design an $\mathcal{O}(n^2)$ solution for finding a maximum induced matching in permutation graphs given their permutation models, based on a dynamic programming algorithm with the aid of the sweep line technique. With the support of the disjoint-set data structure, we improve the complexity to $\mathcal{O}(m + n)$. Consequently, we extend this result to give an $\mathcal{O}(m + n)$ algorithm for the same problem in trapezoid graphs. By combining our algorithms with the current best graph identification algorithms, we can solve the MIM problem in permutation and trapezoid graphs in linear and $\mathcal{O}(n^2)$ time, respectively. Our results are far better than the best known $\mathcal{O}(mn)$ algorithm for the maximum induced matching problem in both graph classes, which was proposed by Habib et al.
The state of the art of fetal hemoglobin-inducing agents
Creators: name: Pavan, Aline Renata
name: Lopes, Juliana Romano
name: Dos Santos, Jean Leandro
Publisher: name: Taylor & Francis
Year: 2022
Subjects: subject: Medicine
subject: Cell Biology
subject: Genetics
subject: FOS: Biological sciences
subject: Molecular Biology
subject: Pharmacology
subject: 69999 Biological Sciences not elsewhere classified
subject: Science Policy
subject: Hematology
subject: Computational Biology

description: Sickle cell anemia (SCA) is a hematological genetic disorder caused by a mutation in the gene of the β-globin. Pharmacological treatments will continue to be an important approach, including the strategy to induce fetal hemoglobin (HbF). Here, we analyzed the articles described in the literature regarding the drug discovery of HbF inducers. The main approaches for such strategy will be discussed, highlighting those most promising. The comprehension of the mechanisms involved in the β-globin regulation is the main key to design new drugs to induce HbF. Among the strategies, gamma-globin regulation by epigenetic enzymes seems to be a promising approach to be pursued, although the comprehension of the selectivity role for those new drugs is crucial to reduce adverse effects. The low druggability of transcription factors and their vital role in embryonic human development are critical points that should be taken in account for drug design. The guanylate cyclase and the NO/cGMP signaling pathway seem to be promising not only for HbF induction, but also for the protective effects in the cardiovascular system. The association of drugs acting through different mechanisms to induce HbF seems to be promising for the discovery of new drugs.
Observations of Thermal Flare Plasma with the EUV Variability Experiment
Creators: name: Warren, Harry P.
name: Mariska, John T.
name: Doschek, George A.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: One of the defining characteristics of a solar flare is the impulsive formation of very high temperature plasma. The properties of the thermal emission are not well understood, however, and the analysis of solar flare observations is often predicated on the assumption that the flare plasma is isothermal. The EUV Variability Experiment (EVE) on the Solar Dynamics Observatory (SDO) provides spectrally resolved observations of emission lines that span a wide range of temperatures (e.g., Fe XV-Fe XXIV) and allow for thermal flare plasma to be studied in detail. In this paper we describe a method for computing the differential emission measure distribution in a flare using EVE observations and apply it to several representative events. We find that in all phases of the flare the differential emission measure distribution is broad. Comparisons of EVE spectra with calculations based on parameters derived from the GOES soft X-ray fluxes indicate that the isothermal approximation is generally a poor representation of the thermal structure of a flare.
description: Paper has not been submitted. Comments are welcome!
On classification and deformations of Lie-Rinehart superalgebras
Creators: name: Ehret, Quentin
name: Makhlouf, Abdenacer
Publisher: name: arXiv
Year: 2021
Subjects: subject: Representation Theory (math.RT)
subject: Rings and Algebras (math.RA)
subject: FOS: Mathematics

description: The purpose of this paper is to study Lie-Rinehart superalgebras over characteristic zero fields, which are consisting of a supercommutative associative superalgebra $A$ and a Lie superalgebra $L$ that are compatible in a certain way. We discuss their structure and provide a classification in small dimensions. We describe all possible pairs defining a Lie-Rinehart superalgebra for $\dim(A)\leq 2$ and $\dim(L)\leq 4$. Moreover, we construct a cohomology complex and develop a theory of formal deformations based on formal power series and this cohomology.
description: Update version with minor changes
Determinants of Classical SG-Pseudodifferential Operators
Creators: name: Maniccia, Lidia
name: Schrohe, Elmar
name: Seiler, Joerg
Publisher: name: arXiv
Year: 2013
Subjects: subject: Analysis of PDEs (math.AP)
subject: Functional Analysis (math.FA)
subject: FOS: Mathematics
subject: Primary: 47G30, Secondary: 47A10, 47L15, 58J42

description: We introduce a generalized trace functional TR in the spirit of Kontsevich and Vishik's canonical trace for classical SG-pseudodifferential operators on R^n and suitable manifolds, using a finite-part integral regularization technique. This allows us to define a zeta-regularized determinant det A for classical parameter-elliptic SG-operators A of order (μ,m), with μ>0, m\ge0. For m=0, the asymptotics of TR exp(-tA) as t\to 0 and of TR (λ-A)^{-k}$ as |λ|\to\infty are derived. For suitable pairs (A,A_0) we show that det A/det A_0 coincides with the so-called relative determinant det(A,A_0).
description: Slightly revised; accepted for publication in Math. Nachrichten
Pseudospin symmetry in single particle resonances in spherical square wells
Creators: name: Lu, Bing-Nan
name: Zhao, En-Guang
name: Zhou, Shan-Gui
Publisher: name: arXiv
Year: 2013
Subjects: subject: Nuclear Theory (nucl-th)
subject: Nuclear Experiment (nucl-ex)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: The pseudospin symmetry (PSS) has been studied extensively for bound states. Recently we justified rigorously that the PSS in single particle resonant states is exactly conserved when the attractive scalar and repulsive vector potentials of the Dirac Hamiltonian have the same magnitude but opposite sign [PRL 109, 072501 (2012)]. To understand more deeply the PSS, we focus on several issues related to the exact conservation and breaking mechanism of the PSS in single particle resonances. In particular, we are interested in how the energy and width splittings of PS partners depend on the depth of the scalar and vector potentials. We investigate the asymptotic behaviors of radial Dirac wave functions. Spherical square well potentials are employed in which the PSS breaking part in the Jost function can be well isolated. By examining the zeros of Jost functions corresponding to small components of the radial Dirac wave functions, general properties of the PSS are analyzed. By examining the Jost function, the occurrence of intruder orbitals is explained and it is possible to trace continuously the PSS partners from the PSS limit to the case with a finite potential depth. The dependence of the PSS in resonances as well as in bound states on the potential depth is investigated systematically. We find a threshold effect in the energy splitting and an anomaly in the width splitting of pseudospin partners when the depth of the single particle potential varies from zero to a finite value. The conservation and the breaking of the PSS in resonant states and bound states share some similar properties. The appearance of intruder states can be explained by examining the zeros of Jost functions. Origins of the threshold effect in the energy splitting and the anomaly in the width splitting of PS partners, together with many other problems, are still open and should be further investigated.
description: 12 pages, 9 figures; due to the limitation "The abstract field cannot be longer than 1,920 characters", the abstract appearing here is slightly shorter than that in the PDF file; Phys. Rev. C, in press
Insights into the operational model of agonism of receptor dimers
Creators: name: Jakubík, Jan
name: Randáková, Alena
Publisher: name: Taylor & Francis
Year: 2022
Subjects: Biochemistry
Pharmacology

description: Accurate ranking of efficacies and potencies of agonists is essential in the discovery of new selective agonists. For the purpose of system-independent ranking of agonists, the operational model of agonism (OMA) has become a standard. Many receptors function as oligomers which makes functional responses more complex, requiring an extension of the original OMA. Explicit equations of the operational model of agonism of receptor dimers (OMARD) were derived. The OMARD can be applied to any receptor possessing two orthosteric sites. The behavior of OMARD was analyzed to demonstrate its complexity and relation to experimental data. Properties of OMARD and OMA equations were compared to demonstrate their pros and cons. Extension of OMA by slope factors gives simple equations of functional response that are easy to fit experimental data but results may be inaccurate because of exponentiation of operational efficacy. Also, such equations cannot accommodate bell-shaped curves. Explicit equations of OMARD give accurate results but are complex and tedious to fit experimental data. All operational models use inter-dependent parameters that are a hurdle in the fitting. A good understanding of OMARD behavior helps to overcome such obstacles.
Complex optical/UV and X-ray variability in Seyfert 1 galaxy Mrk 509
Creators: name: Kumari, Neeraj
name: Pal, Main
name: Naik, Sachindra
name: Jana, Arghajit
name: Jaisawal, Gaurava K.
name: kushwaha, Pankaj
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 performed a detailed spectral and timing analysis of a Seyfert 1 galaxy Mrk 509 using data from the Neil Gehrels Swift observatory that spanned over ~13 years between 2006 and 2019. To study the variability properties from the optical/UV to X-ray emission, we used a total of 275 pointed observations in this work. The average spectrum over the entire duration exhibits a strong soft X-ray excess above the power-law continuum. The soft X-ray excess is well described by two thermal components with temperatures of kT_BB1 ~120 eV and kT_BB2 ~460 eV. The warm thermal component is likely due to the presence of an optically thick and warm Comptonizing plasma in the inner accretion disk. The fractional variability amplitude is found to be decreasing with increasing wavelength, i.e. from the soft X-ray to UV/optical emission. However, the hard X-ray (2-8 keV) emission shows very low variability. The strength of the correlation within the UV and the optical bands (0.95-0.99) is found to be stronger than the correlation between the UV/Optical and X-ray bands (0.40-0.53). These results clearly suggest that the emitting regions of the X-ray and UV/optical emission are likely distinct or partly interacting. Having removed the slow variations in the light curves, we find that the lag spectrum is well described by the 4/3 rule for the standard Shakura-Sunyaev accretion disk when we omit X-ray lags. All these results suggest that the real disk is complex, and the UV emission is likely reprocessed in the accretion disk to give X-ray and optical emission.
description: This article has been accepted to the Publications of the Astronomical Society of Australia (PASA). This article contains 17 pages and 13 figures
Die Reliquien Albert's des Großen in der St. Andreaskirche zu Köln
Creators: name: Merlo, Johann Jakob
Publisher: name: Bonner Jahrbücher
Year: 2018

description: -
description: Bonner Jahrbücher, Bd. 38 (1865): Jahrbücher des Vereins von Alterthumsfreunden im Rheinlande
title: Interaction of impurity atoms of light elements with vacancies and vacancy clusters in fcc metals
Creators: name: Poletaev, G.M.
name: Zorya, I.V.
name: Rakitin, R.Y.
name:  Iliina, M.A.
name: Starostenkov,  M.D.
Publisher: name: Peter the Great St. Petersburg Polytechnic University
Year: 2020

description: The interaction of impurity atoms of light elements C, N, O with vacancies and
vacancy clusters in fcc metals Ni, Ag and Al was studied by the molecular dynamics method.
The binding energies of impurity atoms with vacancies, divacancies and stacking fault
tetrahedron (SFT) are calculated. It is shown that the impurity atom in a vacancy is not
located at its center, but is displaced relative to it in the direction of the <100> type. The
changes in the activation energy of vacancy migration upon interaction with an impurity atom
are calculated. When studying the interaction of impurity atoms with a SFT, it was found that
the binding energy of C, N and O atoms for all the considered metals is higher with the SFT
edge (i.e. with partial dislocation) than with the top of the SFT.
Doctrines, modalities and comonads
Creators: name: Dagnino, Francesco
name: Rosolini, Giuseppe
Publisher: name: arXiv
Year: 2021
Subjects: subject: Category Theory (math.CT)
subject: Logic in Computer Science (cs.LO)
subject: Logic (math.LO)
subject: FOS: Mathematics
subject: FOS: Computer and information sciences
subject: 03G30, 03B45, 18C50

description: Doctrines are categorical structures very apt to study logics of different nature within a unified environment: the 2-category Dtn of doctrines. Modal interior operators are characterised as particular adjoints in the 2-category Dtn. We show that they can be constructed from comonads in Dtn as well as from adjunctions in it, and the two constructions compare. Finally we show the amount of information lost in the passage from a comonad, or from an adjunction, to the modal interior operator. The basis for the present work is provided by some seminal work of John Power.
Perception of global participants of ITEC nations on country's preparedness and response to COVID-19 pandemic
Creators: name: Upadhyay, Kritika
name: Goel, Sonu
name: Soundappan, Kathirvel
Publisher: name: University of Limerick
Year: 2023
Subjects: subject: Health sciences
subject: FOS: Health sciences

description: Background: The Coronavirus disease 2019 (COVID-19) pandemic has exposed the public health preparedness and response system across the world. The current study was conducted to gauge the perception of public health professionals of Indian Technical and Economic Cooperation (ITEC) countries regarding the preparedness and responses of their countries in mitigating the COVID-19 pandemic. Methodology: Three capacity-building programs, namely “Managing COVID-19 Pandemic–Experience and Best practices of India” were conducted by PGIMER, Chandigarh, for public health professionals from ITEC countries from April to May 2021 in which 97 participants from 13 countries have participated. The tools used in the study were adapted from WHO’s COVID-19 Strategic Preparedness and Response (SPRP), Monitoring and Evaluation Framework, interim guidelines for Critical preparedness, readiness and response actions for COVID-19, and a strategic framework for emergency preparedness, and finalized using Delphi technique. The overall preparedness ofmanaging COVID-19 was rated using five-point Likert scale, whereas the overall score for the country in combating the COVID-19 pandemic was assessed using 10 point scale. Results: We found that the perception of public health professionals to government response regarding COVID-19 for fostering improvement on COVID-19 situation was “moderate” with respect to transmission and surveillance mechanism, uniform reporting mechanism, and availability of adequate personal protective equipment (PPE) for health workers. However, the participants rated government response as “poor” in the availability of multisectoral national operational plan, human resource capacity, availability of trained rapid response team (RRT), preparedness in prevention and clinical management, training of healthcare workers, communication and community engagement strategies, facilities to test samples of patients, and transparent governance and administration. Conclusion: A poor level of preparedness of countries in diverse domains of managing the COVID-19 pandemic was observed. As the global threat of COVID-19 is still looming, great efforts on building a robust preparedness and response system for COVID-19 and similar pandemics are urgently required.
title: Deposition kinetics and boundary layer theory in the chemical vapor deposition of β-SiC on the surface of C/C composite
Creators: name: Aghajani, H.
name: Hosseini,  N.
name: Mirzakhani, B.
Publisher: name: Peter the Great St. Petersburg Polytechnic University
Year: 2020

description:  In this study, SiC was deposited on carbon/carbon (C/C) composite substrate using
chemical vapor deposition (CVD) method to investigate the kinetics of the deposition process.
Therefore, the time, temperature, precursor composition (SiCl4:N2:CH4) and substrate position
in the reactor were varied to evaluate the deposition rate. X-ray diffraction (XRD) method
was used to characterize the phase composition and calculate the grain size and the texture
coefficient of the coatings. Field emission scanning electron microscopy (FESEM) was
utilized to observe the coating morphology, microstructure and thickness. As observed β-SiC
was the dominant phase of the coating with varied preferred growth crystalline planes of
(111), (220) or (311). The coating thickness was 2 µm and 5 µm for the samples treated at
1000 and 1100ºC, respectively.
Die Ausgrabung der römischen Niederlassung genannt die Altstatt bei Messkirch
Creators: name: Naeher, Julius
Publisher: name: Bonner Jahrbücher
Year: 2018

description: [nicht vorhanden / not available]
description: Bonner Jahrbücher, Bd. 74 (1882): Jahrbücher des Vereins von Altertumsfreunden im Rheinlande
title: Tender Procedure for Traditionally Procured Building Contracts in Ireland
Creators: name: Cunningham, Tony
Publisher: name: Technological University Dublin
Year: 2016

description: he process of tendering for construction contracts is an expensive process, particularly where contracts are large and/or complex or involve partial, or total, contractor design. The underlying philosophy guiding best practice in tendering procedure is that of ensuring fair play among the tendering contractors. Tenders for building contracts may be obtained using a range of approaches. This study examines best practice in tendering procedure for building contracts in the private and public sectors in Ireland and focuses in particular on the procedures to be carried out under open and selective/restricted tendering approaches.

The study identifies where open tendering and selective tendering should be used. It deals with procedures regarding compiling a list of tendering contractors in response to a private preliminary invitation to tender or public published contract notice. Guidance is provided regarding the number of contractors that should be invited to tender where a selective/restricted procedure is adopted. The amount of time contractors should be allowed in order to submit their tenders is also considered. The study outlines procedures regarding issuing tender documentation and dealing with queries and clarifications during the tendering period. Procedures for returning and opening tender submissions are investigated. Best practice in examining bills of quantities and evaluating economic advantage is also set out. The study outlines the process of reporting the tender results and of making recommendations to clients regarding the appointment of contractors. The study concludes with the procedures for notifying the successful tenderer and unsuccessful contractors of the results of the tender competition.

This study is primarily addressed to Irish students undertaking undergraduate and conversion masters courses in quantity surveying and construction management disciplines.
A tight lower bound for the online bounded space hypercube bin packing problem
Creators: name: Kohayakawa, Yoshiharu
name: Miyazawa, Flávio Keidi
name: Wakabayashi, Yoshiko
Publisher: name: arXiv
Year: 2021
Subjects: subject: Combinatorics (math.CO)
subject: Discrete Mathematics (cs.DM)
subject: FOS: Mathematics
subject: FOS: Computer and information sciences
subject: 68Q17, 68W27, 68W25, 52C17, 05D40

description: In the $d$-dimensional hypercube bin packing problem, a given list of $d$-dimensional hypercubes must be packed into the smallest number of hypercube bins. Epstein and van Stee [SIAM J. Comput. 35 (2005)] showed that the asymptotic performance ratio $ρ$ of the online bounded space variant is $Ω(\log d)$ and $O(d/\log d)$, and conjectured that it is $Θ(\log d)$. We show that $ρ$ is in fact $Θ(d/\log d)$, using probabilistic arguments.
description: This manuscript is derived from arXiv:1712.06763, where further material is presented and the proofs are formulated a little differently
Critical central sections of the cube
Creators: name: Ambrus, Gergely
Publisher: name: arXiv
Year: 2021
Subjects: subject: Metric Geometry (math.MG)
subject: FOS: Mathematics
subject: 52A40, 52A38, 49Q20

description: We study the volume of central hyperplane sections of the cube. Using Fourier analytic and variational methods, we retrieve a geometric condition characterizing critical sections which, by entirely different methods, was recently proven by Ivanov and Tsiutsiurupa. Using this characterization result, we prove that critical central hyperplane sections in the 3-dimensional case are all diagonal to a (possibly lower dimensional) face of the cube, while in the 4-dimensional case, they are either diagonal to a face, or, up to permuting the coordinates and sign changes, perpendicular to the vector $(1,1,2,2)$. This shows the existence of non-diagonal critical central sections.
description: Differs from the published version in minor technical corrections due to degenerate cases
Membrane dynamics and organelle biogenesis-lipid pipelines and vesicular carriers
Creators: name: Stefan, Christopher J
name: Trimble, William S
name: Grinstein, Sergio
name: Drin, Guillaume
name: Reinisch, Karin
name: De Camilli, Pietro
name: Cohen, Sarah
name: Valm, Alex M
name: Lippincott-Schwartz, Jennifer
name: Levine, Tim P
name: Iaea, David B
name: Maxfield, Frederick R
name: Futter, Clare E
name: Eden, Emily R
name: Judith, Delphine
name: van Vliet, Alexander R
name: Agostinis, Patrizia
name: Tooze, Sharon A
name: Sugiura, Ayumu
name: McBride, Heidi M
Publisher: name: The Francis Crick Institute
Year: 2021
Subjects: Model organisms
Biochemistry & Proteomics
Imaging
Signalling & Oncogenes
Cell Biology
Chemical Biology & High Throughput

description: Discoveries spanning several decades have pointed to vital membrane lipid trafficking pathways involving both vesicular and non-vesicular carriers. But the relative contributions for distinct membrane delivery pathways in cell growth and organelle biogenesis continue to be a puzzle. This is because lipids flow from many sources and across many paths via transport vesicles, non-vesicular transfer proteins, and dynamic interactions between organelles at membrane contact sites. This forum presents our latest understanding, appreciation, and queries regarding the lipid transport mechanisms necessary to drive membrane expansion during organelle biogenesis and cell growth.
Numerical investigation of turbulence of surface gravity waves
Creators: name: Zhang, Zhou
name: Pan, Yulin
Publisher: name: arXiv
Year: 2021
Subjects: subject: Fluid Dynamics (physics.flu-dyn)
subject: FOS: Physical sciences

description: In this paper, we numerically study the wave turbulence of surface gravity waves in the framework of Euler equations of the free surface. The purpose is to understand the variation of the scaling of the spectra with wavenumber $k$ and energy flux $P$ at different nonlinearity levels under different forcing/free-decay conditions. For all conditions (free decay, narrow- and broadband forcing) we consider, we find that the spectral forms approach wave turbulence theory (WTT) solution $S_η\sim k^{-5/2}$ and $S_η\sim P^{1/3}$ at high nonlinearity levels. With the decrease of nonlinearity level, the spectra for all cases become steeper, with the narrow-band forcing case exhibiting the most rapid deviation from WTT. To interpret these spectral variations, we further investigate two hypothetical and disputable mechanisms about bound waves and finite-size effect. Through a tri-coherence analysis, we find that the finite-size effect is present in all cases, which is responsible for the overall steepening of the spectra and reduced capacity of energy flux at lower nonlinearity levels. The fraction of bound waves in the domain generally decreases with the decrease of nonlinearity level, except for the narrow-band case, which exhibits a transition at some critical nonlinearity level below which a rapid increase is observed. This increase serves as the main reason for the fastest deviation from WTT with the decrease of nonlinearity in the narrow-band forcing case.
description: 20 pages, 11 figures
title: «Русский язык: через прошлое в будущее»: использование электронного образовательного ресурса в подготовке студентов в области русского языка и литературы
Creators: name: Антонова, Мария
name: Зубова, Жанна
Publisher: name: Новгородский государственный университет имени Ярослава Мудрого (НовГУ)
Year: 2020

description: Приводится описание реализации проекта электронного образовательного ресурса «Русский язык: через прошлое в будущее», разработанного в Орловском государственном университете имени И.С.Тургенева. Система представляет собой сочетание образовательного и просветительского контента, направленного на изучение старославянского языка, исторической грамматики русского языка и древнерусской литературы.
Turbulence-Induced Relative Velocity of Dust Particles I: Identical Particles
Creators: name: Pan, Liubin
name: Padoan, Paolo
Publisher: name: arXiv
Year: 2013
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: Fluid Dynamics (physics.flu-dyn)
subject: FOS: Physical sciences

description: We study the relative velocity of inertial particles suspended in turbulent flows and discuss implications for dust particle collisions in protoplanetary disks. We simulate a weakly compressible turbulent flow, evolving 14 particle species with friction timescale, tau_p, covering the entire range of scales in the flow. The particle Stokes numbers, St, measuring the ratio of tau_p to the Kolmogorov timescale, are in the range from ~0.1 to ~800. Using simulation results, we show that the model by Pan & Padoan (PP10) gives satisfactory predictions for the rms relative velocity between identical particles. The probability distribution function (PDF) of the relative velocity is found to be highly non-Gaussian. The PDF tails are well described by a 4/3 stretched exponential function for particles with tau_p ~ 1-2 T_L, where T_L is the Lagrangian correlation timescale, consistent with a prediction based on PP10. The PDF approaches Gaussian only for very large particles with tau_p >~ 54 T_L. We split particle pairs at given distances into two types with low and high relative speeds, referred to as continuous and caustic types, respectively, and compute their contributions to the collision kernel. Although amplified by the effect of clustering, the continuous contribution vanishes in the limit of infinitesimal particle distance, where the caustic contribution dominates. The caustic kernel per unit cross section rises rapidly as St increases toward ~1, reaches a maximum at tau_p ~ 2 T_L, and decreases as tau_p^{-1/2} for tau_p >> T_L.
description: 41 pages, major revisions, accepted to ApJ
title: Читательский опыт как компонент речевой культуры студента-заочника
Creators: name: Батулина, Анна
Publisher: name: Новгородский государственный университет имени Ярослава Мудрого (НовГУ)
Year: 2020

description: Статья посвящена определению соотношения круга чтения студента с уровнем его речевой культуры. Материалом исследования послужили ответы студентов на вопросы о речевом и читательском опыте. Анализировался качественно-количественный состав прочитанных текстов и текстов, читаемых респондентами в момент опроса. Среди прочитанных книг преобладают произведения русской классической литературы, среди актуальной литературы — произведения зарубежных авторов. Довольно значительный сегмент в досуговом чтении студентов приходится на литературу нон-фикшн. Выявлена корреляция  читательской активности с коммуникативной компетенцией. Речь студентов, читающих художественную литературу, богаче и выразительнее, чем речь не читающих студентов или тех, кто читает лишь литературу по специальности. Языковая компетенция рассматриваемой социальной группы менее зависит от читательского опыта, в значительной мере языковые ошибки обусловлены влиянием норм официально-делового стиля. Основным недостатком речевой культуры рассматриваемой группы является смешение норм книжной и разговорной речи.
Roots and Dynamics of Octonion Polynomials
Creators: name: Chapman, Adam
name: Vishkautsan, Solomon
Publisher: name: arXiv
Year: 2021
Subjects: subject: Rings and Algebras (math.RA)
subject: Dynamical Systems (math.DS)
subject: FOS: Mathematics
subject: 16S36, 16K20, 37P35, 37C25, 37F10

description: This paper is devoted to several new results concerning (standard) octonion polynomials. The first is the determination of the roots of all right scalar multiples of octonion polynomials. The roots of left multiples are also discussed, especially over fields of characteristic not 2. We then turn to study the dynamics of monic quadratic real octonion polynomials, classifying the fixed points into attracting, repelling and ambivalent, and concluding with a discussion on the behavior of pseudo-periodic points.
Brouillard - Livre De Kaichete, A des uniformes
Creators: name: Perrollaz, Cartier & Co
Publisher: name: [s.n.]
Year: 1799

description: Enthält: Kaisten, Uniformen (?)
description: Darin: Spätere Konten (1821-1825) auf S. 40, 114-116 und 163; Ertragsberechnung (1821-1822) auf S. 106-113, Spezial-Abrechnung (1799-1809) auf S. 164-171;  S. 117-162 sind herausgeschnitten
description: Französisch
description: Verzeichnung=Description=Inventaire 2014 ISAD(G) / HAN Katalogisierungsregeln für Archivbestände Sebastian Preher
Fulde-Ferrell Pairing instability in Spin-Orbit Coupled Fermi Gas
Creators: name: Dong, Lin
name: Jiang, Lei
name: Pu, Han
Publisher: name: arXiv
Year: 2013
Subjects: subject: Quantum Gases (cond-mat.quant-gas)
subject: FOS: Physical sciences

description: We consider finite-momentum pairing of superfluid phase in ultracold Fermi gas with spin-orbit coupling when subjected to an effective Zeeman field. Based on our two body and mean field many body calculations, we show that the Fulde-Ferrell type superfluid dominates in zero and finite temperature phase diagram. We examine the origin and properties of this novel phase systematically.
description: 13 pages, 8 figures. Published by NJP, under session of "Focus on the Rashba Effect"