cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
IRC-10443: a multi-periodic SRa variable and the nature of long secondary periods in AGB stars
Creators: name: Munari, U.
name: Siviero, A.
name: Ochner, P.
name: Dallaporta, S.
name: Simoncelli, C.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We obtained BVIc photometry of IRC-10443 on 85 different nights distributed over two years, and in addition low resolution absolute spectro- photometry and high resolution Echelle spectroscopy. Our data show that IRC-10443, which was never studied before in any detail, is a SRa variable, characterized by Delta(B)=1.27, Delta(V)=1.14 and Delta(I)=0.70 mag amplitudes and mean values =13.75, =11.33 and =6.18 mag. Two strong periodicities are simultaneously present: a principal one of 85.5 (+/-0.2) days, and a secondary one of 620 (+/-15) days, both sinusoidal in shape, and with semi-amplitudes Delta(V)=0.41 and 0.20 mag, respectively. IRC-10443 turns out to be a M7III star, with a mean heliocentric radial velocity -28 km/s and reddened by E(B-V)=0.87, a third of which of circumstellar origin. The same 0.5 kpc distance is derived from application of the appropriate period-luminosity relations to both the principal and the secondary periods. The long secondary period causes a sinusoidal variation in color of 0.13 mag semi-amplitude in V-Ic, with IRC-10443 being bluest at maximum and reddest at minimum, and with associated changes in effective temperature and radius of 85 K and 6%, respectively. This behavior of colors argues in favor of a pulsation nature for the still mysterious long secondary periods in AGB stars.
description: Published in Baltic Astronomy, vol. 17, pag. 223-234 (2008)
Automated Grain Boundary Detection for Bright-Field Transmission Electron Microscopy Images via U-Net
Creators: name: Patrick, Matthew J.
name: Eckstein, James K.
name: Lopez, Javier R.
name: Toderas, Silvia
name: Asher, Sarah A.
name: Whang, Sylvia I.
name: Levine, Stacey
name: Rickman, Jeffrey M.
name: Barmak, Katayun
Publisher: name: arXiv
Year: 2023
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Quantification of microstructures is crucial for understanding processing-structure and structure-property relationships in polycrystalline materials. Delineating grain boundaries in bright-field transmission electron micrographs, however, is challenging due to complex diffraction contrast in images. Conventional edge detection algorithms are inadequate; instead, manual tracing is usually required. This study demonstrates the first successful machine-learning approach for grain-boundary detection in bright-field transmission electron micrographs. The proposed methodology uses a U-Net convolutional neural network trained on carefully constructed data from bright-field images and hand-tracings available from prior studies, combined with targeted post-processing algorithms to preserve fine features of interest. The image processing pipeline accurately estimates grain-boundary positions, avoiding segmentation in regions with intragrain contrast and identifying low-contrast boundaries. Our approach is validated by directly comparing microstructural markers (i.e., grain centroids) identified in U-Net predictions with those identified in hand tracings; furthermore, the grain size distributions obtained from the two techniques show notable overlap when compared using t-, Kolmogorov-Smirnov, and Cramer-von Mises tests. The technique is then successfully applied to interpret new aluminum film microstructures having different image characteristics from the training data, and preliminary results from Pt and Pd microstructures are presented, highlighting the versatility of our approach for grain-boundary identification in bright-field micrographs.
Proof of the Lagrangean formalism of Hermitean 1-matrix models to all orders
Creators: name: Klitz, Alexander
Publisher: name: arXiv
Year: 2009
Subjects: subject: Mathematical Physics (math-ph)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We show that the correlation functions and the free energy of the formal Hermitean 1-matrix model can be described by the recently proposed Lagrangean formalism to all orders. In addition, the loop equation of this formalism is stated and solved up to the fifth order in 1 / N^2 explicitly.
description: 30 pages, 7 figures
Wave communication across regular lattices
Creators: name: Hein, Birgit
name: Tanner, Gregor
Publisher: name: arXiv
Year: 2010
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We propose a novel way to communicate signals in the form of waves across a d - dimensional lattice. The mechanism is based on quantum search algorithms and makes it possible to both search for marked positions in a regular grid and to communicate between two (or more) points on the lattice. Remarkably, neither the sender nor the receiver needs to know the position of each other despite the fact that the signal is only exchanged between the contributing parties. This is an example of using wave interference as a resource by controlling localisation phenomena effectively. Possible experimental realisations will be discussed.
Comprehensive benchmarking of de novo assembly methods for eukaryotic genomes
Creators: name: Southwood, Dean
name: Rane, Rahul V.
name: Siu Fai Lee
name: Oakeshott, John G.
name: Ranganathan, Shoba
Publisher: name: F1000 Research Limited
Year: 2020

description: Assembling reference-quality, chromosome-level genomes for both model and novel eukaryotic organisms is an increasingly achievable task for single research teams. However, the broad variety of sequencing technologies, assembly algorithms, and post-assembly processing tools currently available means that there is no clear consensus on a best-practice computational protocol for eukaryotic de novo genome assembly. Here, we provide initial results of a comprehensive benchmark of 27 state-of-the-art assembly and polishing packages, in various combinations, when assembling four eukaryotic genomes using both next generation (Illumina HiSeq) and third generation (Oxford Nanopore Technologies R9 and PacBio RSII) sequencing data. Recommendations are made for the most effective tools given particular genome constraints, such as repeat content, GC%, sequencing depth, and genome size, and against common assessment metrics such as contiguity, computational performance, gene completeness, and reference reconstruction.
Additional file 2 of Whole genome sequencing and comparative genomic analyses of Planococcus alpniumensis MSAK28401T, a new species isolated from Antarctic krill
Creators: name: Wang, Yuanyuan
name: Ma, Lingbo
name: He, Jian
name: Liu, Zixuan
name: Weng, Shaoping
name: Wang, Lumin
name: He, Jianguo
name: Guo, Changjun
Publisher: name: figshare
Year: 2021
Subjects: subject: Genetics
subject: FOS: Biological sciences

description: Additional file 2. Subsystems of genes according to SEED database (RAST server).
Band renormalization and Fermi surface reconstruction in iron-based superconductors
Creators: name: Yu, Shun-Li
name: Kang, Jing
name: Li, Jian-Xin
Publisher: name: arXiv
Year: 2009
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: Using the fluctuation exchange approximation and a three-orbital model, we study the band renormalization, Fermi surface reconstruction and the superconducting pairing symmetry in the newly-discovered iron-based superconductors. We find that the inter-orbital spin fluctuations lead to the strong anisotropic band renormalization and the renormalization is orbital dependent. As a result, the topology of Fermi surface displays distinct variation with doping from the electron type to the hole type, which is consistent with the recent experiments. This shows that the Coulomb interactions will have a strong effect on the band renormalization and the topology of the electron Fermi pocket. In addition, the pairing state mediated by the inter-orbital spin fluctuation is of an extended s-wave symmetry.
description: 16 pages, 6 figures
Cz. Kustra (red.), Wdzięczność i zobowiązanie. Myśl Jana Pawła II źródłem inspiracji współczesnego środowiska akademickiego, Wydawnictwo Naukowe Uniwersytetu Mikołaja Kopernika, Toruń 2009, ss. 272.
Creators: name: Parzyszek, Czesław
Publisher: name: Wrocławski Przegląd Teologiczny
Year: 2020

description: Wrocławski Przegląd Teologiczny, Vol 18 No 1 (2010)
AHAMONIYLAR IMPERIYASI
Creators: name: Mahmaraimov, Izzat
Publisher: name: Zenodo
Year: 2023

description: Ushbu maqola yer yuzidagi daslabki imperiya – Ahamoniylar podsholigi haqida. Aynan Ahamoniylar daslabki imperiyani,ya’ni tili, madaniyati va aholisi turli bo’lgan va kuch bilan nazorat qilinadigan davlatni yaratdilar. Maqola davomida bu bilan batafsil tanishib chiqamiz.
Additional file 1 of Whole genome sequencing and comparative genomic analyses of Planococcus alpniumensis MSAK28401T, a new species isolated from Antarctic krill
Creators: name: Wang, Yuanyuan
name: Ma, Lingbo
name: He, Jian
name: Liu, Zixuan
name: Weng, Shaoping
name: Wang, Lumin
name: He, Jianguo
name: Guo, Changjun
Publisher: name: figshare
Year: 2021
Subjects: subject: Genetics
subject: FOS: Biological sciences

description: Additional file 1. The similarity of bacterial 16S rRNA.
Operator log-convex functions and operator means
Creators: name: Ando, Tsuyoshi
name: Hiai, Fumio
Publisher: name: arXiv
Year: 2009
Subjects: subject: Functional Analysis (math.FA)
subject: FOS: Mathematics
subject: 47A63, 47A64, 15A45

description: We study operator log-convex functions on $(0,\infty)$, and prove that a continuous nonnegative function on $(0,\infty)$ is operator log-convex if and only if it is operator monotone decreasing. Several equivalent conditions related to operator means are given for such functions. Operator log-concave functions are also discussed.
description: 20 pages
Vavilov-Cerenkov phenomenon in metal nanofilms
Creators: name: Zuev, V. S.
Publisher: name: arXiv
Year: 2009
Subjects: subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: The Vavilov-Cerenkov phenomenon - light emission during the motion of a fast electron in a dense medium is observable in homogeneous media as well as in inhomogeneous media like photonic crystals. So long as a space (homogeneous or inhomogeneous) contains natural waves with phase velocities that are lower than the velocity of a flying through electron then a Cerenkov emission of light would appear. In nanofilms and nanowires made of silver, gold, copper there are so called surface plasmon polaritons, namely natural waves with a low phase velocity. These waves velocity could be by tens and hundreds times lower than the light velocity in vacuum. An electron with a velocity that is comparatively lower than a velocity of an electron that is able to emit in a uniform medium could emit Cerenkov light. Dispersion relations are calculated for the corresponding plasmons as well as the angles of emission of the plasmons of corresponding frequencies.
description: 5 pages, 4 figures
Lucjan Momot, Z Łucka do Świdnicy. Rzecz o Księdzu Prałacie Dionizym Baranie (1913-1995), kapłanie diecezji łuckiej i archidiecezji wrocławskiej, Wydawnictwo Maria, Świdnica 2008, ss. 104.
Creators: name: Musioł, Maria
Publisher: name: Wrocławski Przegląd Teologiczny
Year: 2020

description: Wrocławski Przegląd Teologiczny, Vol 18 No 1 (2010)
title: The Added Value of Human Resources in Developing Leaders: A case study of an Egyptian Company
Creators: name: Hamdy, Karim
Publisher: name: University of Liverpool Repository
Year: 2020

description: Preparation and development of leaders of the future in any organisation is a primary focus in both academic research and business. Specifically, interest exists regarding leader identification and methods employed in leader preparation and cultivation. Leaders within the organisation underpin the idea of dealing with change and uncertainty. Indeed, Hollis (2007) advises that organisation success lies in the ability of its leaders to set directions and take decisions, especially during critical situations. It takes inspirational visionary thinking to develop leaders, and requires the engagement of all organisation levels embracing top management and whole collaboration. Linking Human Resources (HR) and Organisation Development (OD) during complex times (Schein, 2010) will ensure that leaders help organisations maintain their competitive advantage. The purpose of the study is to centre attention on a particular macro organisation group in Egypt and review its activity even during change. The study explores the added value of HR and OD within the organisation and their contribution in readying and maturing leaders. Organisation impact is assessed, alongside the maintenance of competitive advantage in the face of rapid change. Employing qualitative methods within an action research case study (McManners, 2016), the study concentrates on a leading steel producer in Egypt and the MENA region, and reviews leader preparation and development and their impact on the organisation’s performance and subsequent business improvement. Data gathering was conducted via interviews with executive level, senior management, and via two focus groups from middle management. Together, information and data were obtained concerning the main issues the Group have confronted when attempting to prepare and develop leaders, particularly during uncertainty and change. The main outcome of the Leaders Model and Framework is to highlight the contributions of HR and OD. These departmental roles should safeguard sufficient talent that is continually assessed and aligned at all organisation levels within the organisation to achieve leaders. Collaboration, commitment, and communication within the organisation are paramount. Likewise, the need for organisation transformation, empowerment, and learning initiatives promotes added value for HR within the organisation.
Co-evolution of density and topology in a simple model of city formation
Creators: name: Barthelemy, Marc
name: Flammini, Alessandro
Publisher: name: arXiv
Year: 2008
Subjects: subject: Physics and Society (physics.soc-ph)
subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: FOS: Physical sciences

description: We study the influence that population density and the road network have on each others' growth and evolution. We use a simple model of formation and evolution of city roads which reproduces the most important empirical features of street networks in cities. Within this framework, we explicitely introduce the topology of the road network and analyze how it evolves and interact with the evolution of population density. We show that accessibility issues -pushing individuals to get closer to high centrality nodes- lead to high density regions and the appearance of densely populated centers. In particular, this model reproduces the empirical fact that the density profile decreases exponentially from a core district. In this simplified model, the size of the core district depends on the relative importance of transportation and rent costs.
description: 13 pages, 13 figures
Threshold resummation $S$-factor in QCD: the case of unequal masses
Creators: name: Solovtsova, O. P.
name: Chernichenko, Yu. D.
Publisher: name: arXiv
Year: 2009
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: The new relativistic Coulomb-like threshold resummation $S$-factor in quantum chromodynamics is obtained. The consideration is given within the framework of quasipotential approach in quantum field theory which is formulated in relativistic configuration representation for two particles of unequal masses.
description: 16 pages, Latex, 5 Postscript figures
Adam Czabański, Samobójstwa altruistyczne. Formy manifestacji, mechanizmy i społeczne reperkusje zjawiska, Zakład Wydawniczy NOMOS, Kraków 2009, ss. 517.
Creators: name: Mariański, Janusz
Publisher: name: Wrocławski Przegląd Teologiczny
Year: 2020

description: Wrocławski Przegląd Teologiczny, Vol 18 No 1 (2010)
Comparative biographies of two British Columbia anthropologists : Charles Hill-Tout and James A. Teit
Creators: name: Banks, Judith Judd
Publisher: name: University of British Columbia
Year: 2011

description: The lives and work of two pioneer British Columbia anthropologists (Charles Hill-Tout and James A. Teit) are examined and compared. This is a study of the multiple forces at work including their personal backgrounds, intellectual backgrounds, differences in temperament which shaped the scientists they were, their concepts, some of the motivations behind their concepts, a description of their methods and field work, personal interaction with others, including correspondence and conflicts. In short, this is an effort to recreate part of the world of anthropology in British Columbia between 1895 and 1915 -- a world which no longer exists.
Matrix elements of heavy-light mesons from a fine lattice
Creators: name: Khan, A. Ali
name: Al-Haydari, A.
name: Braun, V.
name: Collins, S.
name: Goeckeler, M.
name: Lacagnina, G. N.
name: Panero, M.
name: Schaefer, A.
name: Schierholz, G.
Publisher: name: arXiv
Year: 2009
Subjects: subject: High Energy Physics - Lattice (hep-lat)
subject: FOS: Physical sciences

description: Results on semileptonic decay matrix elements of heavy-light mesons and charmonium spectrum and decay constant using a fine quenched lattice are presented.
description: 2 pages pdf
Andrew Clapham, Susan Marks (red.), Lessico dei diritti umani, Milano 2009, pp. 528.
Creators: name: Lubowicki, Kazimierz
Publisher: name: Wrocławski Przegląd Teologiczny
Year: 2020

description: Wrocławski Przegląd Teologiczny, Vol 18 No 1 (2010)
Effects of porous tunnel walls on high lift airfoil testing
Creators: name: Lim, A. K.
Publisher: name: University of British Columbia
Year: 2011

description: When a model is tested in a wind tunnel of either open or closed boundaries, the flow field around the model is modified, so that the results of a wind tunnel test do not exactly correspond to flight results. In order to obtain reliable wind tunnel data, wall corrections must be known accurately or eliminated. One approach to the elimination of wall corrections is the use of porous walls, In this study, lift, drag and pitching moment about mid-chord were measured for two sets of two-dimensional Clark Y airfoils, one set having no flap,, the other set having a 30% chord double slotted flap set at 45°. Each set consisted of four geometrically similar profiles with 9 inch, 14 inch, 19 inch and 24 inch chords. In order to simulate two-dimensional flow, all airfoils were mounted vertically in the wind tunnel test section spanning the 27 inch height. The Reynolds number in all cases was maintained at 300,000o The airfoils were tested over a full range of angle of attack in the presence of different configurations of porous tunnel side walls. Longitudinally slotted side walls of open area ratios ranging from 5.5% to 29.6%, transversely slotted side walls of open area ratios ranging from 9.3% to 23.1% and perforated side walls of open area ratios ranging from 12.3% to 18.4% were tested. Slot configurations were sought for which the CL versus ∝ data below CLMAX was most nearly independent of model size. For testing the airfoils with 30% chord double slotted flap at 45°, 18.5% longitudinally slotted side walls proved to be the best configuration while for testing the basic airfoil, 11.1% longitudinally slotted side walls proved the most satisfactory., The lift curve collapsed quite well at these two open areas for the two sets of airfoils, but the lift curve slope was about 15% lower than the expected value in each case. This anomaly remains unresolved. Although the open area ratios found to be best in the present tests are not necessarily optimum values for all tunnels, they should provide useful guidelines for future tests with porous wall configurations.
Łukasz Gaweł, La risurrezione di Gesù Cristo nella sua importanza per l’antropologia cristiana, Edizioni Cantagalli, Siena 2009, ss. 287.
Creators: name: Liszka, Piotr
Publisher: name: Wrocławski Przegląd Teologiczny
Year: 2020

description: Wrocławski Przegląd Teologiczny, Vol 18 No 1 (2010)
Upper bounds for the 2-hued chromatic number of graphs in terms of the independence number
Creators: name: Ahadi, Arash
name: Dehghan, Ali
Publisher: name: arXiv
Year: 2009
Subjects: subject: Combinatorics (math.CO)
subject: Discrete Mathematics (cs.DM)
subject: FOS: Mathematics
subject: FOS: Computer and information sciences
subject: 05C15, 05D40

description: A 2-hued coloring of a graph $G$ (also known as conditional $(k, 2)$-coloring and dynamic coloring) is a coloring such that for every vertex $v\in V(G)$ of degree at least $2$, the neighbors of $v$ receive at least $2$ colors. The smallest integer $k$ such that $G$ has a 2-hued coloring with $ k $ colors, is called the {\it 2-hued chromatic number} of $G$ and denoted by $χ_2(G)$. In this paper, we will show that if $G$ is a regular graph, then $ χ_{2}(G)- χ(G) \leq 2 \log _{2}(α(G)) +\mathcal{O}(1) $ and if $G$ is a graph and $δ(G)\geq 2$, then $ χ_{2}(G)- χ(G) \leq 1+\lceil \sqrt[δ-1]{4Δ^{2}} \rceil ( 1+ \log _{\frac{2Δ(G)}{2Δ(G)-δ(G)}} (α(G)) ) $ and in general case if $G$ is a graph, then $ χ_{2}(G)- χ(G) \leq 2+ \min \lbrace α^{\prime}(G),\frac{α(G)+ω(G)}{2}\rbrace $.
description: Dynamic chromatic number; conditional (k, 2)-coloring; 2-hued chromatic number; 2-hued coloring; Independence number; Probabilistic method
Bp Andrzej Siemieniewski, Ścieżką nauki do Boga. Nauki przyrodnicze i duchowość w starożytności i w średniowieczu, Fronda, Warszawa 2009, ss. 405.
Creators: name: Kiwka, Mirosław
Publisher: name: Wrocławski Przegląd Teologiczny
Year: 2020

description: Wrocławski Przegląd Teologiczny, Vol 18 No 1 (2010)
Supersymmetric Corrections to the Threshold Production of Top Quark Pairs
Creators: name: Kiyo, Y.
name: Steinhauser, M.
name: Zerf, N.
Publisher: name: arXiv
Year: 2009
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: In this paper we investigate supersymmetric effects to the threshold production cross section of top quark pairs in electron positron annihilation. In particular, we consider the complete one-loop corrections from the strong and weak sector of the Minimal Supersymmetric Standard Model.
description: 18 pages, 7 figures
Pressure-induced superconductivity in Iron pnictide compound SrFe2As2
Creators: name: Igawa, K.
name: Okada, H.
name: Takahashi, H.
name: Matsuishi, S.
name: Kamihara, Y.
name: Hirano, M.
name: Hosono, H.
name: Matsubayashi, K.
name: Uwatoko, Y.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: Electrical resistivity under high pressure have been measured on nominally pure SrFe2As2 up to 14 GPa. The resistivity drop appeared with increasing pressure, and we clearly observed zero resistivity. The maximum of superconducting transition temperature (Tc) is 38 K. The value is corresponding to the one of optimally doping AFe2As2 (A=Sr, Ba) system with K+ ions at the A2+ site.
description: 10 pages, 2 figures
The Ready-Made Pleasures of Déjà Vu
Creators: name: Appadurai, Arjun
Publisher: name: Humboldt-Universität zu Berlin
Year: 2019
Subjects: subject: repetition
subject: difference
subject: globalization
subject: cinema
subject: pleasure
subject: Bollywood
subject: 301 Soziologie, Anthropologie
subject: 791 Öffentliche Darbietungen, Film, Rundfunk

description: This essay argues that the phenomenon of repeat viewing of films by Bollywood audiences is worthy of being treated as an unusual cultural practice in which repetition and difference support and reinforce each other in the manner suggested by Gilles Deleuze. This relationship is particularly enabled by the relationship of music to plot in these films, in which song sequences provide a repetitive or percussive element that deepens the melodic and innovative element provided by the story. Not all films are able to attract repeat viewers, which raises a question about the role of the “formula” in the Hindi film industry. Further, the pleasures of repetition in this domain offer a suggestive perspective on India’s larger political dilemma, which is to combine the repetition of Western modernity with the unique developmental signature of Indian culture.
Meadows and the equational specification of division
Creators: name: Bergstra, J. A.
name: Hirshfeld, Y.
name: Tucker, J. V.
Publisher: name: arXiv
Year: 2009
Subjects: subject: Rings and Algebras (math.RA)
subject: FOS: Mathematics

description: The rational, real and complex numbers with their standard operations, including division, are partial algebras specified by the axiomatic concept of a field. Since the class of fields cannot be defined by equations, the theory of equational specifications of data types cannot use field theory in applications to number systems based upon rational, real and complex numbers. We study a new axiomatic concept for number systems with division that uses only equations: a meadow is a commutative ring with a total inverse operator satisfying two equations which imply that the inverse of zero is zero. All fields and products of fields can be viewed as meadows. After reviewing alternate axioms for inverse, we start the development of a theory of meadows. We give a general representation theorem for meadows and find, as a corollary, that the conditional equational theory of meadows coincides with the conditional equational theory of zero totalized fields. We also prove representation results for meadows of finite characteristic.
Gaussian Filter based on Deterministic Sampling for High Quality Nonlinear Estimation
Creators: name: Huber, Marco F.
name: Hanebeck, Uwe D.
Publisher: name: Karlsruhe
Year: 2008

description: In this paper, a Gaussian filter for nonlinear Bayesian estimation is introduced that is based on a deterministic sample selection scheme. For an effective sample selection, a parametric density function representation of the sample points is employed, which allows approximating the cumulative distribution function of the prior Gaussian density. The computationally demanding parts of the optimization problem formulated for approximation are carried out off-line for obtaining an efficient filter, whose estimation quality can be altered by adjusting the number of used sample points. The improved performance of the proposed Gaussian filter compared to the well-known unscented Kalman fiter is demonstrated by means of two examples.
A ligand-free approach to substituted (Z)-3-methyleneisoindolin-1-ones via Cu (I) catalyzed regio- and stereo-selective assembly of 2-iodo benzamide and terminal alkyne
Creators: name: De, Rimpa
name: Bera, Mrinal K.
Publisher: name: Taylor & Francis
Year: 2020
Subjects: subject: Biochemistry
subject: Biotechnology
subject: Evolutionary Biology
subject: FOS: Biological sciences
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: Computational Biology

description: A ligand-free and cost-effective synthesis of substituted 3-methyleneisoindolin -1-ones from 2-iodobenzamide and terminal alkyne under copper (I)-catalyzed condition was accomplished. The reaction affords excellent yield of the product at a relatively lower temperature and exclusive Z-selectivity was observed in the title compound. By varying the substitution pattern on N-atom of benzamide or aromatic core of the alkyne system, a large array of substituted 3-methyleneisoindolin-1-one derivatives could be accessed employing this method.
Au(I)-catalyzed cycloaddition pathways of non-terminal propargyl substrates
Creators: name: Siah, Huey-San Melanie
name: Jónsson, Helgi Freyr
name: Fiksdahl, Anne
Publisher: name: Taylor & Francis
Year: 2020
Subjects: subject: Biophysics
subject: Biochemistry
subject: Microbiology
subject: FOS: Biological sciences
subject: Biotechnology
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: Immunology
subject: FOS: Clinical medicine
subject: Inorganic Chemistry

description: Novel chiral menthol-based pyridyl nitrone ligands were synthesized and Au(I) coordination of the ligands gave chiral Au(I)–nitrone complexes. 1H NMR studies of the gold(I) coordination experiments with nitrone ligands afforded a convenient method for monitoring complex formation. The catalytic effect of Au(I)–nitrone complexes, shown to tune catalytic systems to produce uncommon products, was evaluated in [2 + 2 + 2] cyclotrimerization and [2 + 4] cyclodimerization reactions of non-terminal propargyl acetals. Alternative gold(I)-catalyzed [2 + 2], [2 + 4] and [3 + 4] cycloaddition reaction pathways of non-terminal propargyl acetals with imine substrates gave a diverse range of N-heterocyclic products. The present screening study demonstrates the potential and the versatility of non-terminal propargyl acetals in gold(I)-catalyzed cycloaddition reactions.
Biblia w teologii fundamentalnej V Zjazd Stowarzyszenia Teologów Fundamentalnych w Polsce (Toruń, 24-25 IX 2009 r.)
Creators: name: Dołganiszewska, Elżbieta
Publisher: name: Wrocławski Przegląd Teologiczny
Year: 2020

description: Wrocławski Przegląd Teologiczny, Vol 18 No 1 (2010)
Laser Doppler Velocimetry for Joint Measurements of Acoustic and Mean Flow Velocities : LMS-based Algorithm and CRB Calculation
Creators: name: Simon, Laurent
name: Richoux, Olivier
name: Degroot, Anne
name: Lionet, Louis
Publisher: name: arXiv
Year: 2009
Subjects: subject: Classical Physics (physics.class-ph)
subject: FOS: Physical sciences

description: This paper presents a least mean square (LMS) algorithm for the joint estimation of acoustic and mean flow velocities from laser doppler velocimetry (LDV) measurements. The usual algorithms used for measuring with LDV purely acoustic velocity or mean flow velocity may not be used when the acoustic field is disturbed by a mean flow component. The LMS-based algorithm allows accurate estimations of both acoustic and mean flow velocities. The Cramér-Rao bound (CRB) of the associated problem is determined. The variance of the estimators of both acoustic and mean flow velocities is also given. Simulation results of this algorithm are compared with the CRB and the comparison leads to validate this estimator.
Long-time behaviour of discretizations of the simple pendulum equation
Creators: name: Cieslinski, J. L.
name: Ratkiewicz, B.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Computational Physics (physics.comp-ph)
subject: FOS: Physical sciences

description: We compare the performance of several discretizations of the simple pendulum equation in a series of numerical experiments. The stress is put on the long-time behaviour. We choose for the comparison numerical schemes which preserve the qualitative features of solutions (like periodicity). All these schemes are either symplectic maps or integrable (preserving the energy integral) maps, or both. We describe and explain systematic errors (produced by any method) in numerical computations of the period and the amplitude of oscillations. We propose a new numerical scheme which is a modification of the discrete gradient method. This discretization preserves (almost exactly) the period of small oscillations for any time step.
description: 41 pages, including 18 figures and 4 tables
Microcavity polariton-like dispersion doublet in resonant Bragg gratings
Creators: name: Biancalana, Fabio
name: Mouchliadis, Leonidas
name: Creatore, Celestino
name: Osborne, Simon
name: Langbein, Wolfgang
Publisher: name: arXiv
Year: 2009
Subjects: subject: Other Condensed Matter (cond-mat.other)
subject: FOS: Physical sciences

description: Periodic structures resonantly coupled to excitonic media allow the existence of extra intragap modes ('Braggoritons'), due to the coupling between Bragg photon modes and 3D bulk excitons. This induces unique and unexplored dispersive features, which can be tailored by properly designing the photonic bandgap around the exciton resonance. We report that one-dimensional Braggoritons realized with semiconductor gratings have the ability to mimic the dispersion of quantum-well microcavity polaritons. This will allow the observation of new nonlinear phenomena, such as slow-light-enhanced nonlinear propagation and an efficient parametric scattering at two 'magic frequencies'.
Synthesis and chemical reactivity of novel pyrano[3,2-c]quinoline-3-carbonitriles
Creators: name: Ibrahim, Magdy A.
name: Badran, Al-Shimaa
Publisher: name: Taylor & Francis
Year: 2020
Subjects: subject: Biochemistry
subject: 29999 Physical Sciences not elsewhere classified
subject: FOS: Physical sciences
subject: Neuroscience
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: 69999 Biological Sciences not elsewhere classified
subject: FOS: Biological sciences
subject: Marine Biology
subject: 110309 Infectious Diseases
subject: FOS: Health sciences

description: Reaction of 6-methyl-4,5-dioxo-5,6-dihydro-4H-pyrano[3,2-c]quinoline-3-carboxaldehyde (1) with hydroxylamine hydrochloride under different reaction conditions produced a novel pyrano[3,2-c]quinoline derivatvies 2-5. Ring opening ring closure reactions of pyrano[3,2-c]quinoline-3-carbonitrile 2 with some nitrogen nucleophiles afforded the novel 3-heteroaryl-4-hydroxyquinolines. While, treatment of carbonitrile 3 with some nitrogen nucleohilic reagents produced a diversity of annulated pyrano[3,2-c]quinolines. The chemical reactivity of the prepared pyrano[3,2-c]quinoline-3-carbonitriles 2 and 3 is widely different depending on the different reactivity of pyran-2-one and pyran-4-one moieties toward the nucleophilic reagents as well as the functional groups present in pyrone rings.
Elastic wave dispersion in layered media with suture joints: influence of structural hierarchy and viscoelasticity
Creators: name: Ongaro, Federica
name: Bosia, Federico
name: Pugno, Nicola M.
Publisher: name: arXiv
Year: 2023
Subjects: subject: General Physics (physics.gen-ph)
subject: FOS: Physical sciences

description: Suture joints contribute to the exceptional combination of stiffness, strength, toughness and efficient load bearing and transmission of many biological structures like the cranium or ammonite fossil shells. However, their role in the attenuation of vibrations and effect on dynamic loads is less clear. Moreover, the self-similar hierarchical geometry often associated with suture joints renders its treatment with standard numerical approaches computationally prohibitive. To address this problem, this paper investigates the dynamic response of periodic layered media with suture joints using an analytical approach based on material homogenization. A general trapezoidal suture geometry is considered together with the fundamental ingredients of hierarchy and viscoelasticity. The Spectral Element Method and Bloch theorem are used to derive the dispersion relation and band diagram of the system, including propagating and evanescent dispersion modes. A strong influence of the suture morphology and material properties emerges, and the analysis reveals an important advantage of adding hierarchy, i.e. the possibility of simultaneously obtaining wider bandgaps and their shift to higher frequencies. A synergy between hierarchy and structure is also observed, providing superior levels of wave attenuation. These findings suggest a possible design concept for bioinspired devices with efficient and tailorable wave attenuation properties.
Decentralized State Estimation of Distributed Phenomena based on Covariance Bounds
Creators: name: Sawo, Felix
name: Beutler, Frederik
name: Hanebeck, Uwe D.
Publisher: name: Karlsruhe
Year: 2008

description: This paper addresses the problem of decentralized state estimation of distributed physical phenomena observed by a sensor network. The centralized approaches are not scalable for large sensor networks, because all information has to be transmitted to a powerful central processing node requiring an extensive amount of communication bandwidth and a lot of processing power. Thus, for a decentralized reconstruction of distributed phenomena, we propose a novel methodology consisting of three steps: (a) conversion of the distributed phenomenon into a lumped-parameter system description, (b) decomposition of the resulting system in order to map the description to the actual sensor network, and (c) decomposition of the density representation leading to a decentralized estimation approach. The main problem of a decentralized approach is that due to the propagation of local information through the network, unknown correlations are caused. This fact needs to be considered during the reconstruction process in order to get correct and consistent estimation results. For that reason, we employ a robust estimator (based on Covariance Bounds) for the local reconstruction update on each sensor node. By this means, the individual sensor nodes are able to estimate the local state of the distributed phenomenon using local estimates obtained and communicated by adjacent nodes only. The information about their correlations is not stored in the sensor network.
Topological quantum order: stability under local perturbations
Creators: name: Bravyi, Sergey
name: Hastings, Matthew
name: Michalakis, Spyridon
Publisher: name: arXiv
Year: 2010
Subjects: subject: Quantum Physics (quant-ph)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: We study zero-temperature stability of topological phases of matter under weak time-independent perturbations. Our results apply to quantum spin Hamiltonians that can be written as a sum of geometrically local commuting projectors on a D-dimensional lattice with certain topological order conditions. Given such a Hamiltonian H_0 we prove that there exists a constant threshold ε>0 such that for any perturbation V representable as a sum of short-range bounded-norm interactions the perturbed Hamiltonian H=H_0+εV has well-defined spectral bands originating from O(1) smallest eigenvalues of H_0. These bands are separated from the rest of the spectrum and from each other by a constant gap. The band originating from the smallest eigenvalue of H_0 has exponentially small width (as a function of the lattice size). Our proof exploits a discrete version of Hamiltonian flow equations, the theory of relatively bounded operators, and the Lieb-Robinson bound.
description: 41 pages, 1 figure
Additional file 3 of Whole genome sequencing and comparative genomic analyses of Planococcus alpniumensis MSAK28401T, a new species isolated from Antarctic krill
Creators: name: Wang, Yuanyuan
name: Ma, Lingbo
name: He, Jian
name: Liu, Zixuan
name: Weng, Shaoping
name: Wang, Lumin
name: He, Jianguo
name: Guo, Changjun
Publisher: name: figshare
Year: 2021
Subjects: subject: Genetics
subject: FOS: Biological sciences

description: Additional file 3. Carbohydrate-Active enZYmes (CAZy) database annotated classification statistics.
Practical guidance in genome-wide RNA:DNA triple helix prediction
Creators: name: Matveishina, Elena
name: Antonov, Ivan
name: Medvedeva, Yulia
Publisher: name: F1000 Research Limited
Year: 2020

description: Long noncoding RNAs (lncRNAs) play a key role in many cellular processes including chromatin regulation. To modify chromatin, lncRNAs often interact with DNA in a sequence-specific manner forming RNA:DNA triple helices. Computational tools for triple helices search do not always provide genome-wide predictions of sufficient quality. Here, we used four human lncRNAs (MEG3, DACOR1, TERC and HOTAIR) and their experimentally determined binding regions for evaluating triple helix parameters used by Triplexator software. We find out that 10 nt as a minimum length, 20% as a maximum error-rate and a minimum G-content of 70% or 40% provide the highest accuracy of triple helices predictions in terms of area under the curve (AUC). Additionally, we combined triple helix prediction with the lncRNA secondary structure and demonstrated that consideration of only single-stranded fragments of lncRNA predicted by RNAplfold with 0.95 or 0.5 thresholds for probability of pairing can further improve DNA-RNA the quality of triplexes prediction, especially in MEG3 case. This improvement can be explained by the number and characteristics of DBDs - regions of lncRNA that form the majority of the triplexes, detected by TDF software.
Tasmanian rural community nursing : constructions of practice
Creators: name: Mills, JE
Publisher: name: University Of Tasmania
Year: 2023

description: Tasmanian rural community nurses practice in a role which encompasses both direct or domiciliary care and health promotion. This study uses narrative analysis in order to explore some of the boundaries which exist in the constructions of their practice. Stories told by the participants focus on the areas of; the boundaries between rural community nurses' personal and professional lives, professional boundaries, and the concept of community.
Live vaccine strain recommendations for the human influenza vaccine
Creators: name: Klingen, Thorsten
name: Reimering, Susanne
name: McHardy, Alice C.
Publisher: name: F1000 Research Limited
Year: 2020

description: Up to 5 million annual influenza infections cause substantial morbidity and mortality in seasonal epidemics around the globe. Human influenza A viruses undergo constant genetic and antigenic drift allowing recurrent infections in the human population. To ensure continued protection against influenza infections, the viral strains used for the production of the seasonal influenza vaccine have to be regularly updated. In comparison to the biannual, expert-based vaccine strain recommendations of the WHO, we assess an in silico vaccine strain selection involving a fully automated data collection and analysis by our SD plots algorithm (Klingen et al., 2018).
From publicly available hemagglutinin sequences of H3N2 viruses in the GISAID database (Shu&McCauley, 2017), we calculate a genealogy to determine the changes in frequencies of amino acid changes associated with a particular clade. Changes that significantly increase in frequency among the sequenced isolates over consecutive seasons are considered to provide a selective advantage. If viruses carrying these changes predominantly circulate in the population of the current season and are located in antigenicity-altering regions of the surface protein, the method recommends an update of the vaccine strain with a suitable strain from the particular clade is recommended.
Both in retrospective testing and in live predictions we performed for future seasons over the course of 34 seasons, the SD plots method performed favorably in comparison to recommendations made by the WHO in suggesting suitable strains for the seasonal influenza vaccine. Up-to-date predictions of suitable vaccine strains for influenza A/H3N2 and A/pH1N1 are available at https://github.com/hzi-ifo/SDplots_VaccineUpdates.
Photoluminescent diamond nanoparticles for cell labeling: study of the uptake mechanism in mammalian cells
Creators: name: Faklaris, Orestis
name: Joshi, Vandana
name: Irinopoulou, Theano
name: Tauc, Patrick
name: Girard, Hugues
name: Gesset, Celine
name: Senour, Mohamed
name: Thorel, Alain
name: Arnault, Jean-Charles
name: Boudou, Jean-Paul
name: Curmi, Patrick A.
name: Treussart, François
Publisher: name: arXiv
Year: 2009
Subjects: subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: Diamond nanoparticles (nanodiamonds) have been recently proposed as new labels for cellular imaging. For small nanodiamonds (size <40 nm) resonant laser scattering and Raman scattering cross-sections are too small to allow single nanoparticle observation. Nanodiamonds can however be rendered photoluminescent with a perfect photostability at room temperature. Such a remarkable property allows easier single-particle tracking over long time-scales. In this work we use photoluminescent nanodiamonds of size <50 nm for intracellular labeling and investigate the mechanism of their uptake by living cells . By blocking selectively different uptake processes we show that nanodiamonds enter cells mainly by endocytosis and converging data indicate that it is clathrin mediated. We also examine nanodiamonds intracellular localization in endocytic vesicles using immunofluorescence and transmission electron microscopy. We find a high degree of colocalization between vesicles and the biggest nanoparticles or aggregates, while the smallest particles appear free in the cytosol. Our results pave the way for the use of photoluminescent nanodiamonds in targeted intracellular labeling or biomolecule delivery
Identifying novel SARS-CoV2--human protein interactions using graph embedding
Creators: name: Snehalika Lall
name: Sumanta Ray
name: Sanghamitra Bandyopadhyay
Publisher: name: F1000 Research Limited
Year: 2020

description: Recent outbreak of Novel-coronavirus (SARS-CoV2) has infected millions of people throughout the world. Unfortunately, there no effective drugs are available till now due to the unavailability of proper set of SARS-CoV2-interacting human proteins, thus limiting the set of possible drugs-targets.
Toward this end we have proposed a novel methodology based on graph-neighborhood sampling strategy to identify high-confidence host proteins interacting with SARS-CoV2 proteins. We compile a network consisting of SARS-CoV2 protein, their experimentally verified host interactor (CoV-host) and human proteins. The SARS-Cov2--host interactions are taken from two recent experimental studies consisting of 332 and 261 high-confidence interactions, respectively. Cov-host proteins are mapped into human-PPI interactome to get interaction information. Node2Vec sampling strategy is utilized to learn the low-dimension embeddings of nodes which is utilized to construct neighbourhood-graph. Louvain clustering is applied on it to cluster nodes into groups.
The clusters contain CoV-host and their interacted host proteins. In each cluster, we take most similar nodes of the CoV-host based on the results obtained from Node2Vec. These may be treated as potential target of SARS-CoV2. We predict 148 high-confidence interactions consisting 137 host-proteins. Some predicted host proteins like AGT act as indirect interactor with Spike through ACE2-receptor.
Organocatalyzed synthesis and biological activity evaluation of hybrid compounds 4H-pyrano[2,3-b]pyridine derivatives
Creators: name: Pham, Hoai-Thu
name: Martin, James P.
name: Le, Truong-Giang
Publisher: name: Taylor & Francis
Year: 2020
Subjects: subject: Biochemistry
subject: Pharmacology
subject: Biotechnology
subject: 59999 Environmental Sciences not elsewhere classified
subject: FOS: Earth and related environmental sciences
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: 69999 Biological Sciences not elsewhere classified
subject: FOS: Biological sciences
subject: Developmental Biology

description: 1,4-Dihydropyridines and 4H-pyran derivatives are common and important structures in various pharmaceutical compounds. Dihydropyridines are well-known moieties in compounds that have analgesic, fungicidal, and antibacterial activities and 4H-pyran structures are populous in compounds with antibacterial and anti-cancer potential; exploiting the biological activities of both 1,4-dihydropyridines and 4H-pyran moieties through the exploration of hybrid compounds featuring combinations of these two heterocyclic functionalities is an interesting avenue of research. In this research, we developed novel 1,4-dihydropyridines and 4H-pyran hybrid compounds generated under organocatalytic conditions and evaluated their cytotoxic activity toward KB and HepG2 cancer cell lines.