cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
New insight into kinetics behavor of the structural formation process in Agar gelation
Creators: name: Wang, Y. Z.
name: Zhang, X. F.
name: Zhang, J. X.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: Biological Physics (physics.bio-ph)
subject: FOS: Physical sciences

description: A time-resolved experimental study on the kinetics and relaxation of the structural formation process in gelling Agar-water solutions was carried out using our custom-built torsion resonator. The study was based on measurements of three naturally cooled solutions with agar concentrations of 0.75%, 1.0% and 2.0% w/w. It was found that the natural-cooling agar gelation process could be divided into three stages, sol stage (Stage I), gelation zone (Stage II) and gel stage (Stage III), based on the time/temperature evolutions of the structural development rate (SDR). An interesting fluctuant decaying behavior of SDR was observed in Stage II and III, indicative of a sum of multiple relaxation processes and well described by a multiple-order Gaussisn-like equation: . More interestingly, the temperature dependences of the fitted values of Wn in Stage II and Stage III were found to follow the different Arrhenius laws, with different activation energies of EaII= 39-74 KJ/mol and EaIII~7.0 KJ/mol. The two different Arrhenius-like behaviors respectively suggest that dispersions in Stage II be attributed to the relaxation of the self-assembly of agar molecules or the growth of junction zones en route to gelation, in which the formation or fission of hydrogen bonding interactions plays an important role; and that dispersions in Stage III be attributed to the relaxation dynamics of water released from various size domains close to the domain of the viscous flow of water during the syneresis process.
description: 24 pages, 4 figures, 1 table
Fountain-driven gas accretion by the Milky Way
Creators: name: Marinacci, F.
name: Fraternali, F.
name: Binney, J.
name: Nipoti, C.
name: Ciotti, L.
name: Londrillo, P.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: Accretion of fresh gas at a rate of ~ 1 M_{sun} yr^{-1} is necessary in star-forming disc galaxies, such as the Milky Way, in order to sustain their star-formation rates. In this work we present the results of a new hydrodynamic simulation supporting the scenario in which the gas required for star formation is drawn from the hot corona that surrounds the star-forming disc. In particular, the cooling of this hot gas and its accretion on to the disc are caused by the passage of cold galactic fountain clouds through the corona.
description: 2 pages, 1 figure. To appear in the proceedings of the conference "Assembling the Puzzle of the Milky Way", Le Grand-Bornand 17-22 April 2011, European Physical Journal, editors C. Reyl\'e, A. Robin and M. Schultheis
Rechnergestützter Generalplanentwurf von Frachtschiffen
Creators: name: Poddar, Posenjit
Publisher: name: TUHH Universitätsbibliothek
Year: 1986
Subjects: classificationCode: 52.00
subject: Maschinenbau, Energietechnik, Fertigungstechnik: Allgemeines

description: Rechnergestützter Generalplanentwurf von Frachtschiffen
K*Lambda(1116) photoproduction and nucleon resonances
Creators: name: Kim, Sang-Ho
name: Nam, Seung-il
name: Oh, Yongseok
name: Kim, Hyun-Chul
Publisher: name: arXiv
Year: 2011
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Experiment (hep-ex)
subject: Nuclear Experiment (nucl-ex)
subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: We study the reaction mechanism of K*Lambda(1116) photoproduction off the proton target near threshold considering the contributions from nucleon-resonances. Employing the effective Lagrangian method at the tree-level Born approximation, we investigate the role of the D13(2080) and the D15(2200). We found that the D13 plays a crucial role to reproduce the experimental data well in the forward scattering region at low energy. We also present theoretical predictions on the single photon-beam asymmetry as well as the energy and angular dependence for the cross sections of this reaction.
description: 4 pages, 4 figures, a talk presented at the Fifth Asia-Pacific Conference on Few-Body Problems in Physics 2011 (APFB2011), held in Seoul, Korea, August 22~26, 2011
Large strings of consecutive smooth integers
Creators: name: Najman, Filip
Publisher: name: arXiv
Year: 2011
Subjects: subject: Number Theory (math.NT)
subject: FOS: Mathematics

description: In this note we improve an algorithm from a recent paper by Bauer and Bennett for computing a function of Erdös that measures the minimal gap size $f(k)$ in the sequence of integers at least one of whose prime factors exceeds $k$. This allows us to compute values of $f(k)$ for larger $k$ and obtain new values of $f(k)$.
description: 7 pages, to appear in Arch. Math. (Basel)
Redundant Wavelets on Graphs and High Dimensional Data Clouds
Creators: name: Ram, Idan
name: Elad, Michael
name: Cohen, Israel
Publisher: name: arXiv
Year: 2011
Subjects: subject: Computer Vision and Pattern Recognition (cs.CV)
subject: FOS: Computer and information sciences

description: In this paper, we propose a new redundant wavelet transform applicable to scalar functions defined on high dimensional coordinates, weighted graphs and networks. The proposed transform utilizes the distances between the given data points. We modify the filter-bank decomposition scheme of the redundant wavelet transform by adding in each decomposition level linear operators that reorder the approximation coefficients. These reordering operators are derived by organizing the tree-node features so as to shorten the path that passes through these points. We explore the use of the proposed transform to image denoising, and show that it achieves denoising results that are close to those obtained with the BM3D algorithm.
description: 4 pages, 4 figures, 1 table, submitted to IEEE Signal Processing Letters
Design, dynamics, and control of micro underwater vehicle systems for autonomous environmental exploration
Creators: name: Solowjow, Eugen
Publisher: name: TUHH Universitätsbibliothek
Year: 2019
Subjects: subject: Robotics
subject: Localization
subject: Underwater vehicles
subject: Machine learning
subject: Controls
classificationCode: 600
subject: Technik

description: In dieser Dissertation wird die Exploration und Untersuchung von Umweltfeldern mit Mikro-Unterwasserfahrzeugen (μAUVs) behandelt. Der Entwurf einer unteraktuierten μAUV-Plattform wird präsentiert. Weiterhin werden Regelkonzepte vorgestellt, die es dem μAUV erlauben Trajektorien und Pfaden zu folgen. Es werden zwei Methoden zur Unterwasserlokalisierung von μAUVs vorgestellt. Die erste Methode beruht auf der Ausbreitungsdauer akustischer Signale und die zweite Methode auf der Dämpfung elektromagnetischer Wellen im Wasser. Weiterhin wird ein Regelungskonzept entwickelt, welches einem Flottenverband von μAUVs es erlaubt, Umweltfelder zu erkunden. Das Konzept vereint stochastische optimale Steuerung mit Gauß-Markov-Zufallsfeldern.
description: This dissertation covers exploration and monitoring of environmental fields with micro underwater vehicles (μAUVs). The design of an underactuated μAUV is presented. Moreover, control concepts are introduced for trajectory tracking and path following. Two methods for underwater self-localization are presented, which are suitable for μAUVs. The first approach is based on time delays of arrival of acoustic signals. The second approach exploits attenuation of electro-magnetic signals in water. Lastly, an information theoretic control method is developed, which allows a fleet of μAUVs to explore environmental fields. The method combines stochastic optimal control with Gaussian Markov random fields.
title: Floating Home (NWS-2023-0091, Bauer)
titleType: AlternativeTitle
title: Endangered Species Act Section 7(a)(2) Biological Opinion and Magnuson-Stevens Fishery Conservation and Management Act Essential Fish Habitat Response for the Bauer and Valentine floating home replacement projects in Portage Bay and Lake Union, Seattle, Washington, King County, Washington (USACE Nos. NWS-2023-0091 and NWS-2024-286), HUC: 171100120400 – Portage Bay and Lake Union.
Creators: name: United States. National Marine Fisheries Service. West Coast Region
Publisher: name: United States. National Marine Fisheries Service. West Coast Region
Year: 2025

description: WCRO-2023-02961 ; WCRO-2024-00778
Search for Resonances in the Dijet Mass Spectrum from 7 TeV pp Collisions at CMS
Creators: name: CMS Collaboration
Publisher: name: arXiv
Year: 2011
Subjects: subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: A search for narrow resonances with a mass of at least 1 TeV in the dijet mass spectrum is performed using pp collisions at sqrt(s)=7 TeV corresponding to an integrated luminosity of 1 inverse femtobarn, collected by the CMS experiment at the LHC. No resonances are observed. Upper limits at the 95% confidence level are presented on the product of the resonance cross section, branching fraction into dijets, and acceptance, separately for decays into quark-quark, quark-gluon, and gluon-gluon pairs. The data exclude new particles predicted in the following models at the 95% confidence level: string resonances with mass less than 4.00 TeV, E6 diquarks with mass less than 3.52 TeV, excited quarks with mass less than 2.49 TeV, axigluons and colorons with mass less than 2.47 TeV, and W' bosons with mass less than 1.51 TeV.
Effects of specific solvation on kinetic activation parameters of some benzyl halides in binary solvent mixtures
Creators: name: Wills, Ronald
Publisher: name: University of Calgary
Year: 1963
Subjects: subject: QD 281 S6 W54 1963
subject: Solvolysis
subject: Chemical reaction, rate of
subject: Benzene
subject: Halides

description: Bibliography: p. 88-89.
title: B(E2)-Stärke des 2+1-Zustandes von 12C aus (e,e‘)-Daten & Neuplanung des Vieldraht-Driftkammer Detektors am QCLAM-Spektrometer
Creators: name: D'Alessio, Antonio
Publisher: name: UNSPECIFIED
Year: 2020

description: Der erste Teil dieser Arbeit beschreibt die Untersuchung der Übergangsstärke des 2+1-Zustandes von 12C mit (e,e’)-Experimenten. Hierfür wurden Messungen am Lintott-Magnetspektrometer am S-DALINAC durchgeführt. Durch die Elektronenstrahlenergie von 42,5MeV und Streuwinkel von 69°, 81° und 93° konnten extrem niedrige Impulsüberträge von 0,252 fm^-1 bis 0,322 fm^-1 erreicht werden. Über Relativmessungen des Grundzustandes zum angeregten Zustand wurden Wechselwirkungsquerschnitte des 2+1 Zustandes von 12C bestimmt. Die daraus resultierenden Messdaten dienen als Grundlage einer Extrapolation des Formfaktors über ein analytisches Modell zum Impulsübertrag am Photonenpunkt q = 0,023fm^-1. Durch die neu gemessen Daten konnte die Ungenauigkeit des B(E2,2+1->GZ) von 5,5% auf 2,5% verringert werden, da insbesondere die Daten bei niedrigen Impulsüberträgen die Genauigkeit der Extrapolation bestimmen. Diese Präzision ermöglicht es, die Unsicherheiten des Quadrupolmoments des 2+1 -Zustandes von momentan 35% auf 23% zu reduzieren. Dies bietet neue Möglichkeiten zur Überprüfung von theoretischen ab inito-Methoden wie dem No Core Shell-Model. Im zweiten Teil dieser Arbeit wird die Neuplanung des Vieldraht- Driftkammer Detektors des QCLAM-Spektrometers vorgestellt. Der Augenmerk wurde bei der Neuplanung auf eine verbesserte Energieauflösung und Effizienz des Detektors gelegt. Hierfür wurde ein Gehäuse entworfen, indem die eigentlichen Drahtkammern liegen. Der neue Entwurf besteht aus zwei X-Ebenen und zwei U-Ebenen. Der Abstand der Signaldrähte in den X-Ebenen wurde von 3mm auf 2,5mm reduziert. In den U-Ebenen sind die Drähte um 28,32° zu den Drähten in den X-Ebenen verdreht, hierdurch ergibt sich ein Abstand der Drähte von 2,84mm. Der verringerte Abstand führt zu einer Verbesserung der Auflösung und zu einer Erhöhung der Effizienz insbesondere im Niederenergiebereich des Spektrums.
Hybridization and interference effects for localized superconducting states in strong magnetic field
Creators: name: Aladyshkin, A. Yu.
name: Mel'nikov, A. S.
name: Nefedov, I. M.
name: Savinov, D. A.
name: Silaev, M. A.
name: Shereshevskii, I. A.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: Within the Ginzburg-Landau model we study the critical field and temperature enhancement for crossing superconducting channels formed either along the sample edges or domain walls in thin-film magnetically coupled superconducting - ferromagnetic bilayers. The corresponding Cooper pair wave function can be viewed as a hybridization of two order parameter (OP) modes propagating along the boundaries and/or domain walls. Different momenta of hybridized OP modes result in the formation of vortex chains outgoing from the crossing point of these channels. Near this crossing point the wave functions of the modes merge giving rise to the increase in the critical temperature for a localized superconducting state. The origin of this critical temperature enhancement caused by the wave function squeezing is illustrated for a limiting case of approaching parallel boundaries and/or domain walls. Using both the variational method and numerical simulations we have studied the critical temperature dependence and OP structure vs the applied magnetic field and the angle between the crossing channels.
description: 12 pages, 13 figures
Bump, set, spike...spandex : examining coaches' and athletic directors' interpretations of the Canadian interuniversity sport women's volleyball rule on player uniforms
Creators: name: MacDonald, Kelly
Publisher: name: University of British Columbia
Year: 2010

description: Despite a gender equity policy and an identical uniform rule for both men’s and women’s Canadian Interuniversity Sport (CIS) volleyball players, every CIS women’s volleyball team wears tight fitting spandex uniforms, while the men’s teams wear looser and longer shorts to play. The dissimilarities between uniforms for the men’s and women’s volleyball teams demonstrate how CIS female volleyball players are governed in inequitable ways that feminize and sexualize the female players. Informed by feminist critical theory this research provides a discussion of the gendered power relations that work as a backdrop to the study of one aspect of organizational culture, namely the uniform rule that has developed in CIS volleyball. Using Martin’s (1992) three perspective approach to organizational culture this study examines the women’s volleyball uniform practice from the perspective of the Canada West, CIS women’s volleyball coaches and athletic directors. The three main themes that emerged from the interview data reveal that volleyball culture, player input and the power of coaches and athletic directors all impact the women’s uniform practices. Additionally, each theme provides support for Martin’s integration, differentiation, and fragmentation perspectives. Most notable are the contradictions, ambiguities and confusion around the spandex uniform as they highlight the complexity of the issue by illustrating how coaches’ and athletic directors’ lack clarity and understanding about the practice and its implications. This study exposes the gendered sub-text that flows through the Canada West Volleyball organization and acts as a jumping-off point for engaging in new dialogue about team uniform practices.
The flipside of the coin - an investor-level investigation of blockchain-based fundraising (Initial Coin Offerings)
Creators: name: Brückmann, Carolin Petra
Publisher: name: TUHH Universitätsbibliothek
Year: 2021
Subjects: classificationCode: 330
subject: Wirtschaft

description: ICOs stellen eine neuartige Finanzierungsmethode dar, welche es Start-ups ermöglicht Kapital von einer Großzahl vorwiegend Kleinanleger einzusammeln. Innerhalb meiner Dissertation widme ich mich ICO-Investoren, um darzustellen wie Investoren diese neuartigen Investitionsumgebung navigieren. Entlang dreier Studien untersuche ich die Komposition sowie Interaktion verschiedener Investorengruppen. Des Weiteren analysiere ich inwiefern Investoren in der Lage sind erfolgreiche Start-ups gezielt zu selektieren.
description: ICOs are a recent innovation in early-venture financing, in which ventures raise capital by collecting small capital contributions from many investors. This dissertation is devoted to ICO investors, aiming to understand how they behave in such a novel investment environment, characterized by buzz and high uncertainty. I investigate the behavior-based composition of ICO crowds, study how heterogeneity of individual investors affects crowd dynamics and analyze whether crowds channel capital to high performing ventures.
Simulating Gyrokinetic Microinstabilities in Stellarator Geometry with GS2
Creators: name: Baumgaertel, J. A.
name: Belli, E. A.
name: Dorland, W.
name: Guttenfelder, W.
name: Hammett, G. W.
name: Mikkelsen, D. R.
name: Rewoldt, G.
name: Tang, W. M.
name: Xanthopoulos, P.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Plasma Physics (physics.plasm-ph)
subject: FOS: Physical sciences

description: The nonlinear gyrokinetic code GS2 has been extended to treat non-axisymmetric stellarator geometry. Electromagnetic perturbations and multiple trapped particle regions are allowed. Here, linear, collisionless, electrostatic simulations of the quasi-axisymmetric, three-field period National Compact Stellarator Experiment (NCSX) design QAS3-C82 have been successfully benchmarked against the eigenvalue code FULL. Quantitatively, the linear stability calculations of GS2 and FULL agree to within ~10%.
description: Submitted to Physics of Plasmas. 9 pages, 14 figures
Analyse des Einflusses der Kettenlänge der Edukte und des Reaktionsfortschrittes einer Veresterungsreaktion auf das Quellverhalten stimuli-responsiver Gele am Beispiel von Poly-N-Isopropylacrylamid
Creators: name: Ruhstrat, Jana Katharina
Publisher: name: TUHH Universitätsbibliothek
Year: 2022
Subjects: classificationCode: 500
subject: Naturwissenschaften
classificationCode: 540
subject: Chemie

description: A special ability of stimuli-responsive gels is the reversible solvent uptake in response to the influence of external stimuli, which has great potential for technical applications. However, this behaviour has not yet been researched. To achieve a better understanding of the chemo-responsive behaviour of gels, the swelling behaviour of poly-N-isopropylacrylamide (PNIPAAm) in different solvents and solvent compositions was investigated in this work. For this purpose, the swelling behaviour of PNIPAAm in various pure substances of the substance classes of carboxylic acids, alcohols and esters was first considered. It was found that hydrophilic and polar properties of the solvents cause positive swelling behaviour, while hydrophobic properties have a negative effect on the swelling behaviour. In addition, the swelling behaviour was investigated as a function of the reaction progress in various esterification reactions. High degrees of swelling were obtained up to high conversions, followed by a sharp decrease at complete conversion, indicating a dominant influence of the polar solvents. It was also recognised that with increasing length of the acid residue or alcohol residue, the influence of the other residue on the swelling behaviour decreased. Furthermore, it must be considered that the thermodynamic swelling equilibrium is superimposed by the swelling kinetics. This is noticeable from the molecular sizes. As the chain length of the residues increases, it can be assumed that the esters diffuse out of or into the gel matrix more slowly, which could lead to the reaction mixtures with short-chain esters showing an increase in the degree of swelling at high conversion rates.
Time dependent impurity in ultracold fermions: orthogonality catastrophe and beyond
Creators: name: Knap, Michael
name: Shashi, Aditya
name: Nishida, Yusuke
name: Imambekov, Adilet
name: Abanin, Dmitry A.
name: Demler, Eugene
Publisher: name: arXiv
Year: 2012
Subjects: subject: Quantum Gases (cond-mat.quant-gas)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: Recent experimental realization of strongly imbalanced mixtures of ultracold atoms opens new possibilities for studying impurity dynamics in a controlled setting. We discuss how the techniques of atomic physics can be used to explore new regimes and manifestations of Anderson's orthogonality catastrophe (OC), which could not be accessed in solid state systems. We consider a system of impurity atoms localized by a strong optical lattice potential and immersed in a sea of itinerant Fermi atoms. Ramsey interference experiments with impurity atoms probe OC in the time domain, while radio-frequency (RF) spectroscopy probes OC in the frequency domain. The OC in such systems is universal for all times and is determined by the impurity scattering length and Fermi wave vector of itinerant fermions. We calculate the universal Ramsey response and RF absorption spectra. In addition to the standard power-law contribution, which corresponds to the excitation of multiple particle-hole pairs near the Fermi surface, we identify a novel contribution to OC that comes from exciting one extra particle from the bottom of the itinerant band. This gives rise to a non-analytic feature in the RF absorption spectra, which evolves into a true power-law singularity with universal exponent 1/4 at the unitarity. Furthermore, we discuss the manifestations of OC in spin-echo experiments, as well as in the energy counting statistic of the Fermi gas following a sudden quench of the impurity state. Finally, systems in which the itinerant fermions have two or more hyperfine states provide an even richer playground for studying non-equilibrium impurity physics, allowing one to explore non-equilibrium OC and to simulate quantum transport through nano-structures. This provides a useful connection between cold atomic systems and mesoscopic quantum transport.
description: 15 pages, 7 figures
Can 21-cm observations discriminate between high-mass and low-mass galaxies as reionization sources?
Creators: name: Iliev, Ilian T.
name: Mellema, Garrelt
name: Shapiro, Paul R.
name: Pen, Ue-Li
name: Mao, Yi
name: Koda, Jun
name: Ahn, Kyungjin
Publisher: name: arXiv
Year: 2011
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: The prospect of detecting the first galaxies by observing their impact on the intergalactic medium as they reionized it during the first billion years leads us to ask whether such indirect observations are capable of diagnosing which types of galaxies were most responsible for reionization. We attempt to answer this by considering a set of large-scale radiative transfer simulations of reionization in sufficiently large volumes to make statistically meaningful predictions of observable signatures, while also directly resolving all atomically-cooling halos down to 10^8 M_solar. We focus here on predictions of the 21-cm background, to see if upcoming observations are capable of distinguishing a universe ionized primarily by high-mass halos from one in which both high-mass and low-mass halos are responsible, and to see how these results depend upon the uncertain source efficiencies. We find that 21-cm fluctuation power spectra observed by the first generation EoR/21-cm radio interferometer arrays should be able to distinguish the case of reionization by high-mass halos alone from that by both high- and low-mass halos, together. Some reionization scenarios yield very similar power spectra and rms evolution and thus can only be discriminated by their different mean reionization history and 21-cm PDF distributions. We find that the skewness of the 21-cm PDF distribution smoothed over LOFAR-like window shows a clear feature correlated with the rise of the rms due to patchiness. Measurements of the mean photoionization rates are sensitive to the average density of the regions being studied and therefore could be strongly skewed in certain cases. (abridged)
description: 33 pages, 38 figures, mostly in color. Comments welcome
Crisi di Civiltà. Pandemia e Capitalismo, Noam Chomsky, Ponte Alle Grazie, Firenze, 2020
Creators: name: Di Grigoli, Antonio Raimondo
Publisher: name: Comparative Cultural Studies - European and Latin American Perspectives
Year: 2020

description: Comparative Cultural Studies - European and Latin American Perspectives, Vol. 5 No. 10 (2020)
Investigation of wind effect on pressure data for neutron monitor stations
Creators: name: Carswell, D. A.
Publisher: name: University of Calgary
Year: 1965
Subjects: subject: QC 809 R3 C35 1965
subject: Radiation - Measurement
subject: Neutron counters
subject: Atmospheric pressure
subject: Winds

description: Bibliography: p. <73>.
Biological and quantitative-SAR evaluations, and docking studies of (E)-N'-benzylidenebenzohydrazide analogues as potential antibacterial agents
Creators: name: Alam, Mohammad Sayed
name: Jebin, Sefat
name: Rahman, M. Mostafizur
name: Bari, Md. Latiful
name: Lee, Dong-Ung
Publisher: name: IfADo - Leibniz Research Centre for Working Environment and Human Factors, Dortmund
Year: 2016
Subjects: Hydrazone Schiff base
antimicrobial activity
physicochemical properties
docking study

description: A series of 15 (E)-N'-benzylidenebenzohydrazide analogues were evaluated for their antimicrobial activities against eleven pathogenic and food-borne microbes, namely, S. aureus (G+), L. monocytogenes (G+), B. subtilis (G+), K. pneumonia (G¯), C. sakazakii (G¯), C. freundii (G¯), S. enterica (G¯), S. enteritidis (G¯), E. coli (G¯), Y. pestis (G¯), and P. aeruginosa (G¯). Most of the compounds exhibited selective activity against some Gram-negative bacterial strains. Of the compounds tested (3a-o), 3b and 3g were most active against C. freundii (MIC = ~19 µg mL-1). Whereas, compounds 3d, 3i, 3k and 3n exhibited MIC values ranging from 37.5 to 75 μg mL-1 against C. freundii, and compounds 3e, 3l and 3n had MIC values of ~75 μg mL-1 against K. pneumonia. Quantitative structure-antibacterial activity relationships were studied using physicochemical parameters and a good correlation was found between calculated octanol-water partition coefficients (clogP; a lipophilic parameter) and antibacterial activities. In silico screening was also performed by docking high (3b and 3g) and low (3n) activity compounds on the active site of E. coli FabH receptor, which is an important therapeutic target. The findings of these in silico screening studies provide a theoretical basis for the design and synthesis of novel benzylidenebenzohydrazide analogues that inhibit bacterial FabH.
description: EXCLI Journal; 15:Doc350; ISSN 1611-2156
Particle Monte Carlo simulation of string-like colloidal assembly in 2 dimensions
Creators: name: Norizoe, Yuki
name: Kawakatsu, Toshihiro
Publisher: name: arXiv
Year: 2011
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: We simulate structural phase behavior of polymer-grafted colloidal particles by molecular Monte Carlo technique. Interparticle potential, which has a finite repulsive square-step outside a rigid core of the colloid, was previously confirmed via numerical self-consistent field calculation. This model potential is purely repulsive. We simulate these model colloids in the canonical ensemble in 2 dimensions and find that these particles containing no interparticle attraction self-assemble and align in a string-like assembly, at low temperature and high density. This string-like colloidal assembly is related to percolation phenomena. Analyzing the cluster size distribution and the average string length, we build phase diagrams and discover that the average string length diverges around the region where the melting transition line and the percolation transition line cross. This result is similar to Ising spin systems, in which the percolation transition line and the order-disorder line meet at a critical point.
description: 11 pages, 14 figures
El nuevo presidente electo de la república dominicana. Luis Rodolfo Abinader Corona. La política del cambio entre desafíos internos y política exterior
Creators: name: Binazzi, Alice
name: Daniel, C. Pricila
Publisher: name: Comparative Cultural Studies - European and Latin American Perspectives
Year: 2020

description: Luis Rodolfo Abinader Corona is the new President of the Dominican Republic, recently elected, last July 2020. In this Short Note, we refer about his electoral triumph, in the first round, the Presidential Oath and Abinader’s first Presidential Speech. Core axis of domestic and foreign politics were outlined. The new President of the Dominican Republic also acknowledged the fundamental role, played by the Dominican overseas community. In President Abinader’s new approach, it can be observed a breakdown politics, in comparison to previous governments. At the same time, new challenges seem to arise, in foreign political strategy and in regional cooperation with the other Latin American and Caribbean countries.
description: Comparative Cultural Studies - European and Latin American Perspectives, Vol. 5 No. 10 (2020)
Fake communication, immaginari contrastanti, una possibile soluzione
Creators: name: Torrini, Lodovica
Publisher: name: Comparative Cultural Studies - European and Latin American Perspectives
Year: 2020

description: Un confronto entre escenarios distintos en tiempos de guerra, de la guerra al terror a la guerra al enemigo invisible. El tiempo pasa, el medio ambiente cambia, pero la estrategias de poder transmitidas a través de la comunicación son las mismas. ¿Cuáles son? ¿y qué imaginarios transmiten ya desde siglos? Esta es la pregunta a la cual tenemos que contestar para poder entender las dinámicas a la base de la construcción de nuestro imaginario cotidiano, extra-ordinario, y ahora pandémico. Nuesto análisis identifica las semejanzas en la comunicación del otro, el enemigo, el extraño, que se han mantenido y todavía se mantienen en los varios ámbitos, académico, cultural y público. Dinámicas que concurren a mantener inalterado el poder en el tiempo y que si identificadas en un lapso de tiempo tan complejo, pueden serivr a manifestar claras disparidades y diferencias entre la gestión del poder y las emergencias en el Norte y Sur del mundo, y poder desarrollar una conciencia crítica. El problema existe, pero cómo se comunica?
description: Comparative Cultural Studies - European and Latin American Perspectives, Vol. 5 No. 10 (2020)
Vincerò
Creators: name: Maroselli Matteoli, Catalina
Publisher: name: Comparative Cultural Studies - European and Latin American Perspectives
Year: 2020

description: La crise sanitaire actuelle nous porte à reconsidérer la situation de nos territoires, et de certains petits territoires insulaires enfermés dans la dépendance économique à l’égard de l’extérieur, notamment. Aussi, le cas de la Corse est-il particulier sans l’être. Car il s’agit pour nous tous de reconstruire des bases de vie acceptables à partir de la mémoire des lieux et pour les gens du lieu. Et en se situant à l’échelle locale, faire de la valorisation des ressources naturelles une priorité. C’est de l’idée d’autosuffisance non seulement alimentaire, de résilience, qu’émergeront peut-être de nouvelles manières d’être et de vivre, au cœur même de notre civilisation méditerranéenne.
description: Comparative Cultural Studies - European and Latin American Perspectives, Vol. 5 No. 10 (2020)
title: Growthism in Irish Spatial Planning in an Age of Limits: Towards a Transformative Post-Growth Praxis
Creators: name: Daly, Gavin
Publisher: name: University of Liverpool Repository
Year: 2023

description: Humanity today stands in an age of crisis. From economic shocks to global pandemics and the existential climate and ecological emergencies, the future has never looked more imperilled. Yet the planning profession, as future orientated praxis, seems powerless in mitigating this dangerous trajectory and in conceiving alternative spatial prospects beyond endless production and consumption growth, driving civilisation ever further towards collapse. In a search for alternative possibilities, the aim of this thesis is to understand why planning is growth-orientated and how it could be theorised differently. Planning’s purpose as a basic functionary in the reproduction of capital is first critically interrogated and how planning knowledge continuously evolved to install a growth imperative as its governing ideology. The heterodox concept of degrowth is then offered as a deliberately disruptive discourse to radically repoliticise planning and to advance the urgent institutional changes required in the face of the limits to growth. Combining an original synthesis of spatial dialectics and post-structuralism, I develop a novel research praxis for spatialising degrowth as a transgressive epistemology and, through advancing an alternative understanding of planning’s foremost concepts of ‘balanced’ and ‘sustainable’ development, I apply this to the Irish National Planning Framework as an empirical case study using documentary analysis and participant interviews, to deconstruct the hidden locus of planning’s growth ideology and to identify opportunities for how it might be transcended. Finally, as the original contribution of this thesis, I argue that it is from the very geographically uneven contradictions of capitalist spatialisation itself, manifesting in the grassroots planning practices of post-industrial shrinking cities, where the conditions for urban growth have already broken down, that the performative possibilities for enunciating a transformative post-growth planning paradigm might be apprehended.
Después de la pandemia: Claves para una transición
Creators: name: Conversi, Daniele
Publisher: name: Comparative Cultural Studies - European and Latin American Perspectives
Year: 2020

description: The coronavirus pandemic has prompted many countries to adopt drastic and draconian measures. This article attempts to answer a question: is it at all desirable to return to the status quo ante once most economic activities fully resume? I propose here to reconnect the ‘debatable’ with the ‘debated’, that is, what was discussed in some sectors until the day before the pandemic erupted: The climate marches of September 2019 mobilized millions of people throughout the world and already contained national and international renaissance programs aimed at abandoning fossil fuels for a realistically sustainable development. Considering that the pandemic was caused by environmental factors, in addition to the mobility of elites, this raises the urgency of accelerating the energy, economic and cultural transition necessary to slow down ongoing climate change, the consequences of which can be immensely more devastating than any pandemic.
description: Comparative Cultural Studies - European and Latin American Perspectives, Vol. 5 No. 10 (2020)
África subsahariana y el Covid-19: escenarios más probables
Creators: name: González, Yoslán Silverio
Publisher: name: Comparative Cultural Studies - European and Latin American Perspectives
Year: 2020

description: En los últimos años la región africana se había caracterizado por indicadores macroeconómicos alentadores como resultado de un crecimiento casi sostenido de sus principales economías, aunque este no ha significado una reducción de las desigualdades. En este contexto tras la adopción de políticas neoliberales los sistemas de salud fueron los más afectados, con la disminución de la capacidad hospitalaria y la carencia de personal médico. La irrupción del coronavirus ha hecho saltar las alarmas de la OMS debido a que África tiene todas las condiciones para convertirse en un futuro epicentro de la pandemia debido a las condiciones higiénico sanitarias. Existe una multiplicidad de factores de riesgo que potencian la expansión de la Covid-19 en África. Esto apunta a un escenario probable de que la pandemia aquí pueda alcanzar proporciones alarmantes con fuertes consecuencias sociales y económicas, agudizadas también por la recesión económica mundial.
description: Comparative Cultural Studies - European and Latin American Perspectives, Vol. 5 No. 10 (2020)
The Tokyo Axion Helioscope
Creators: name: Ohta, R.
name: Akimoto, Y.
name: Inoue, Y.
name: Minowa, M.
name: Mizumoto, T.
name: Moriyama, S.
name: Namba, T.
name: Takasu, Y.
name: Yamamoto, A.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: FOS: Physical sciences

description: The Tokyo Axion Helioscope experiment aims to detect axions which are produced in the solar core. The helioscope uses a strong magnetic field in order to convert axions into X-ray photons and has a mounting to follow the sun very accurately. The photons are detected by an X-ray detector which is made of 16 PIN-photodiodes. In addition, a gas container and a gas regulation system is adopted for recovering the coherence between axions and photons in the conversion region giving sensitivity to axions with masses up to 2 eV. In this paper, we report on the technical detail of the Tokyo Axion Helioscope.
"I am the way I am, and I don't want to lose that" : Russian immigrant women's narratives of beauty work, immigration and aging
Creators: name: Korotchenko, Alexandra
Publisher: name: University of British Columbia
Year: 2010

description: This study examined the beauty work practices of Russian immigrant women and their understandings of beauty and femininity in later life. The research was guided by the following questions: (1) What are the beauty practices of older Russian immigrant women living in Canada?; (2) Why do older Russian immigrant women pursue these practices?; and (3) How are older Russian immigrant women’s beauty practices shaped by their social locations as immigrants, Canadian residents, former citizens of the former Soviet Union, and women? The study utilized data from in-depth qualitative interviews with 10 immigrant women from the former Soviet Union. The women ranged in age from 52 to 75 (average age of 61) and had immigrated to Canada between 1992 and 2004. The majority of the women were well-educated, married, able-bodied, and self-identified as heterosexual, but differed in terms of their socioeconomic status and country of origin within the USSR. Each woman was interviewed twice for a total of 19.8 interview hours. The majority of the interviews were conducted in a mix of Russian and English, and later translated into English. The data was analyzed using Strauss and Corbin’s (1998) concepts of open and axial coding. To date, research has shown that North American, white, middle-class women frequently engage in beauty work due to the repercussions of their non-compliance with feminine beauty ideals to their vocational success, heterosexual partnerships, and social acceptance. My findings revealed that similar to white North American women, older Russian immigrant women held negative attitudes towards their bodies, and engaged in a variety of beauty practices to conceal and correct their bodies’ deviations from the slim and youthful beauty ideal. These beauty practices included skin care, non-surgical cosmetic procedures, makeup, hair care, fashion,dieting, and exercise. The women’s beauty work choices were framed by their socialization within Russian cultural values that privileged conventional gender roles and feminine appearance, their assimilation into Canadian culture, their resistance to Canadian views of beauty and femininity, and their feelings about their aging bodies. I discuss these findings in relation to the extant research and theorizing regarding beauty work and aging.
Data Mining: A Prediction for Performance Improvement of Engineering Students using Classification
Creators: name: Yadav, Surjeet Kumar
name: Pal, Saurabh
Publisher: name: arXiv
Year: 2012
Subjects: subject: Machine Learning (cs.LG)
subject: FOS: Computer and information sciences

description: Now-a-days the amount of data stored in educational database increasing rapidly. These databases contain hidden information for improvement of students' performance. Educational data mining is used to study the data available in the educational field and bring out the hidden knowledge from it. Classification methods like decision trees, Bayesian network etc can be applied on the educational data for predicting the student's performance in examination. This prediction will help to identify the weak students and help them to score better marks. The C4.5, ID3 and CART decision tree algorithms are applied on engineering student's data to predict their performance in the final exam. The outcome of the decision tree predicted the number of students who are likely to pass, fail or promoted to next year. The results provide steps to improve the performance of the students who were predicted to fail or promoted. After the declaration of the results in the final examination the marks obtained by the students are fed into the system and the results were analyzed for the next session. The comparative analysis of the results states that the prediction has helped the weaker students to improve and brought out betterment in the result.
description: 6 pages, 3 Figures. arXiv admin note: substantial text overlap with arXiv:1202.4815
Rapid, Machine-Learned Resource Allocation: Application to High-redshift GRB Follow-up
Creators: name: Morgan, Adam N.
name: Long, James
name: Richards, Joseph W.
name: Broderick, Tamara
name: Butler, Nathaniel R.
name: Bloom, Joshua S.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: As the number of observed Gamma-Ray Bursts (GRBs) continues to grow, follow-up resources need to be used more efficiently in order to maximize science output from limited telescope time. As such, it is becoming increasingly important to rapidly identify bursts of interest as soon as possible after the event, before the afterglows fade beyond detectability. Studying the most distant (highest redshift) events, for instance, remains a primary goal for many in the field. Here we present our Random forest Automated Triage Estimator for GRB redshifts (RATE GRB-z) for rapid identification of high-redshift candidates using early-time metrics from the three telescopes onboard Swift. While the basic RATE methodology is generalizable to a number of resource allocation problems, here we demonstrate its utility for telescope-constrained follow-up efforts with the primary goal to identify and study high-z GRBs. For each new GRB, RATE GRB-z provides a recommendation - based on the available telescope time - of whether the event warrants additional follow-up resources. We train RATE GRB-z using a set consisting of 135 Swift bursts with known redshifts, only 18 of which are z > 4. Cross-validated performance metrics on this training data suggest that ~56% of high-z bursts can be captured from following up the top 20% of the ranked candidates, and ~84% of high-z bursts are identified after following up the top ~40% of candidates. We further use the method to rank 200+ Swift bursts with unknown redshifts according to their likelihood of being high-z.
description: 44 pages, 11 figures, 6 tables, Accepted to ApJ
Porvenir: Entre el miedo, la insensibilidad y el compromiso con el futuro
Creators: name: Díaz Portuondo, Lixandra
Publisher: name: Comparative Cultural Studies - European and Latin American Perspectives
Year: 2020

description: La alta y rápida propagación del SARS-CoV-2 no limita su huella a la pérdida de vidas humanas, las alarmantes cifras de infectados o el colapso de los sistemas sanitarios, sino que pone al descubierto la gestión de sistemas de gobierno competentes, otros ineficientes, economías agrietadas o casi devastadas ante el aumento de la deuda internacional. A nivel social, se acentúan las desigualdades sobre todo para quienes no tienen un trabajo fijo, son emigrantes, o sus contratos han sido cancelados por la cuarentena social. En el presente análisis se toma a Cuba como referencia por llevar a cabo una política gubernamental que prioriza el acceso gratuito a la atención médica, las pesquisas activas para detectar infectados y aislarlos, a la vez que potencia la elaboración en instituciones biotecnológicas experimentadas de una serie de medicamentos que, como parte de la política preventiva del país, son suministrados a la población y a los grupos de riesgo para fortalecer su sistema inmunitario. Se destaca, además, la posición solidaria de la Isla al brindar ayuda médica a otros países. El contexto ha removido conciencias hacia la sensibilidad y el humanismo, pero también han aflorado el egoísmo, la pobreza espiritual y la desesperación. El hombre tiene el compromiso y la responsabilidad de contribuir al desarrollo de la humanidad, pero su contexto y su posición ante las actuales circunstancias acarrean un cambio social. Si bien es muy temprano para describirlo, vale tenerlo en cuenta.
description: Comparative Cultural Studies - European and Latin American Perspectives, Vol. 5 No. 10 (2020)
Covid 19 en Oaxaca: respuestas etno-culturales ante la crisis sanitaria
Creators: name: Barabas, Alicia M.
Publisher: name: Comparative Cultural Studies - European and Latin American Perspectives
Year: 2020

description: This paper try to give an ethnographical look over a positive exemple of collective actions address by originals peoples of Oaxaca state, in Mexico, to prevent and overcome the pandemic Covid19. I shall present with detail the case of Santiago Comaltepec, a municipality at the Sierra Norte inhabited by chinantec indians; what they think, the decisions they make and the actions they take to confront it.The autonomous community responses are posible beacause the exercise of traditional forms of election and government called Internal Normative Systems at the Constitution of Oaxaca State.
description: Comparative Cultural Studies - European and Latin American Perspectives, Vol. 5 No. 10 (2020)
Modal and interior nodal masters in parallel condensation methods for generalized eigenvalue problems
Creators: name: Rothe, Kai
name: Voß, Heinrich
Publisher: name: TUHH Universitätsbibliothek
Year: 1997
Subjects: subject: eigenvalue problems
subject: condensation
subject: parallel methods
classificationCode: 510
subject: Mathematik
subject: Eigenwertproblem
classificationCode: 65F15
subject: Eigenvalues, eigenvectors

description: For large-scale eigenvalue problems the authors introduced in [4] a coarse grained parallel algorithm for distributed memory computers based on substructuring and static condensation. The approach can be generalized to non-nodal masters if the support of each of the generalized masters is contained in the interior of one substructure. In this note we demonstrate that modal masters are superior to interior nodal masters.