cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Strengthening of ferrite due to dispersions of seond phase particles
Creators: name: Pattanaik, Suryanarayan
Publisher: name: University of British Columbia
Year: 2011

description: Room temperature tensile tests were performed on aged Fe-Cu and tempered Fe-C martensites to study the strengthening of ferrite, due to dispersions of non-coherent second phase particles over a range of particle sizes. Electron Microscopy was used to determine the structure parameters. Strengthening was observed-in both the aged Fe-Cu, with a soft second phase and the tempered Fe-C martensite with a hard second phase dispersion. In the aged Fe-Cu, the yield strength seems to be due to the bowing out of dislocations between particles - an Orowan- type of mechanism where as in the tempered Fe-C martensite, the strengthening is possibly due to several mechanisms involving cementite dispersions, grain boundaries and excess carbon in solution. Aged Fe-Cu, did not exhibit any appreciable increase in work hardening over that of pure iron. But in the tempered Fe-C martensite, the work hardening was higher than that of pure iron and increased with cementite particle size. It was not possible to explain the observed work hardening behaviour with the help of the existing work hardening theories.
THE RESEARCH PHYSICIAN AT THE TEACHING HOSPITAL
Creators: name: Noumeh N.M.
name: López Lara C., E.
name: De La Cruz Torres, L.C.
Publisher: name: Вестник науки
Year: 2025
Subjects: research physician
educational hospital
research
Russian Federation
Dominican Republic

description: The hospitals leading in research have as a characteristic the realization of organizational changes that give this activity an important role in this mission, as well as forming work teams between clinicians and surgical and researchers. It has been seen that the nations with the highest investment in research and development obtain a better quality of life for their population and, at the same time, boost their economic growth. The teaching hospital is an academic-healthcare entity that integrates the highest level of development of its three missions: healthcare, teaching and research throughout its operation. The Research Physician at the teaching hospital is a key and essential piece for the development of Research in the different areas of the hospital, it is the link that unites Teaching with Research. This human resource acts as the person in charge of scientific research at any level and / or degrand also plans, directs and coordinates research activities.
Exceptionally High Blocking Temperature of 17 K in a Surface-Supported Molecular Magnet
Creators: name: Paschke, Fabian
name: Birk, Tobias
name: Enenkel, Vivien
name: Liu, Fupin
name: Romankov, Vladyslav
name: Dreiser, Jan
name: Popov, Alexey A.
name: Fonin, Mikhail
Publisher: name: Weinheim : Wiley-VCH
Year: 2021
Subjects: subject: dimetallofullerenes
subject: electrospray deposition
subject: graphene
subject: relaxation
subject: single-molecule magnets
subject: 540
subject: 660

description: Single-molecule magnets (SMMs) are among the most promising building blocks for future magnetic data storage or quantum computing applications, owing to magnetic bistability and long magnetic relaxation times. The practical device integration requires realization of 2D surface assemblies of SMMs, where each magnetic unit shows magnetic relaxation being sufficiently slow at application-relevant temperatures. Using X-ray absorption spectroscopy and X-ray magnetic circular dichroism, it is shown that sub-monolayers of Dy2 @C80 (CH2 Ph) dimetallofullerenes prepared on graphene by electrospray deposition exhibit magnetic behavior fully comparable to that of the bulk. Magnetic hysteresis and relaxation time measurements show that the magnetic moment remains stable for 100 s at 17 K, marking the blocking temperature TB(100) , being not only in excellent agreement with that of the bulk sample but also representing by far the highest one detected for a surface-supported single-molecule magnet. The reported findings give a boost to the efforts to stabilize and address the spin degree of freedom in molecular magnets aiming at the realization of SMM-based spintronic units.
The Global Food Systems at the Crossroads: Policy Landscape and Governance Factor for Boosting Nature-Positive Production at Scale in Nigeria: A Right to Food Perspective
Creators: name: Ayoola, Gbolagade Babalola
name: Ayoola, Gbolagade Babalola
Publisher: name: Unknown
Year: 2021
Subjects: Agricultural and Food Policy
International Development

description: Paper# 19543
Majorana and the bridge between matter and anti-matter
Creators: name: Vissani, Francesco
Publisher: name: arXiv
Year: 2024
Subjects: subject: History and Philosophy of Physics (physics.hist-ph)
subject: FOS: Physical sciences

description: This short essay aims to offer a discursive presentation of three scientific articles by Ettore Majorana highlighting the fundamental importance of one of them - the last one - for the investigation of the intimate constitution of matter. The search for evidence to support Majorana's thesis is the prime motivation of the conference "Multi-Aspect Young Oriented Advanced Neutrino Academy" at the G.P. Grimaldi Foundation in Modica, Sicily.
description: Essay based on the minutes of the speech on 4 July 2023 addressed to the citizens as an introduction to the conference
Pathways to Sustainable Land-Use and Food Systems in India By 2050
Creators: name: Jha, Chandan Kumar
name: Singh, Vartika
name: Stevanovic, Miodrag
name: Dietrich, Philipp
name: Saxena, Satyam
name: Mosnier, Aline
name: Weindl, Isabelle
name: Bodirsky, Benjamin
name: Popp, Alexander
name: Ghosh, Ranjan
name: Lotze-Campen, Hermann
name: Schmidt-Traub, Guido
name: Jha, Chandan Kumar
name: Singh, Vartika
name: Stevanovic, Miodrag
name: Dietrich, Philipp
name: Saxena, Satyam
name: Mosnier, Aline
name: Weindl, Isabelle
name: Bodirsky, Benjamin
name: Popp, Alexander
name: Ghosh, Ranjan
name: Lotze-Campen, Hermann
name: Schmidt-Traub, Guido
Publisher: name: Unknown
Year: 2021
Subjects: Agricultural and Food Policy
Land Economics/Use

description: Paper# 19546
Dietary Transitions As Climate Mitigation Measures in Europe: Implications of Supply-Side Responses and Trade Policy Regimes
Creators: name: Yu, Wusheng
name: Clora, Francesco
name: Costa, Louis
name: Baudry, Gino
name: Yu, Wusheng
name: Clora, Francesco
name: Costa, Louis
name: Baudry, Gino
Publisher: name: Unknown
Year: 2021
Subjects: Food Consumption/Nutrition/Food Safety
International Relations/Trade

description: Paper# 19576
Composition and thermodynamics of nuclear matter with light clusters
Creators: name: Typel, S.
name: Röpke, G.
name: Klähn, T.
name: Blaschke, D.
name: Wolter, H. H.
Publisher: name: arXiv
Year: 2009
Subjects: subject: Nuclear Theory (nucl-th)
subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: Nuclear Experiment (nucl-ex)
subject: FOS: Physical sciences

description: We investigate nuclear matter at finite temperature and density, including the formation of light clusters up to the alpha particle The novel feature of this work is to include the formation of clusters as well as their dissolution due to medium effects in a systematic way using two many-body theories: a microscopic quantum statistical (QS) approach and a generalized relativistic mean field (RMF) model. Nucleons and clusters are modified by medium effects. Both approaches reproduce the limiting cases of nuclear statistical equilibrium (NSE) at low densities and cluster-free nuclear matter at high densities. The treatment of the cluster dissociation is based on the Mott effect due to Pauli blocking, implemented in slightly different ways in the QS and the generalized RMF approaches. We compare the numerical results of these models for cluster abundances and thermodynamics in the region of medium excitation energies with temperatures T <= 20 MeV and baryon number densities from zero to a few times saturation density. The effect of cluster formation on the liquid-gas phase transition and on the density dependence of the symmetry energy is studied. Comparison is made with other theoretical approaches, in particular those, which are commonly used in astrophysical calculations. The results are relevant for heavy-ion collisions and astrophysical applications.
description: 32 pages, 15 figures, minor corrections, accepted for publication in Physical Review C
Dynamical Invariants for Variable Quadratic Hamiltonians
Creators: name: Suslov, Sergei K.
Publisher: name: arXiv
Year: 2010
Subjects: subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: We consider linear and quadratic integrals of motion for general variable quadratic Hamiltonians. Fundamental relations between the eigenvalue problem for linear dynamical invariants and solutions of the corresponding Cauchy initial value problems for the time-dependent Schroedinger equation are emphasized. An eigenfunction expansionof the solution of the initial value problem is also found. A nonlinear superposition principle for the generalized Ermakov systems is established as a result of decomposition of the general quadratic invariant in terms of the linear ones.
description: 21 pages, no figures; to appear in Physica Scripta
Trimethylsilyl Pseudohalide Adducts of GaCl3 and B(C6F5)3
Creators: name: Bläsing, Kevin
name: Bresien, Jonas
name: Maurer, Steffen
name: Schulz, Axel
name: Villinger, Alexander
Publisher: name: Weinheim : Wiley-VCH
Year: 2021
Subjects: subject: Adducts
subject: Azides
subject: Cyanates
subject: Cyanides
subject: Pseudohalogens
subject: Rhodanides
subject: 540

description: Me3Si−X (X=CN, N3, OCN, and SCN) was treated with the Lewis acids GaCl3 and B(C6F5)3 in toluene yielding the desired adducts Me3Si−X→GaCl3 and Me3Si−X→B(C6F5)3. All synthesized adducts were isolated and completely characterized including single crystal structure elucidations. The different structures, thermodynamics of formation and charge transfer effects are discussed on the basis of experimental and theoretical data.
Interpolative approach for electron-electron and electron-phonon interactions: from the Kondo to the polaronic regime
Creators: name: Martin-Rodero, A.
name: Yeyati, A. Levy
name: Flores, F
name: Monreal, R. C.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: We present a theoretical approach to determine the electronic properties of nanoscale systems exhibiting strong electron-electron and electron-phonon interactions and coupled to metallic electrodes. This approach is based on an interpolative ansatz for the electronic self-energy which becomes exact both in the limit of weak and strong coupling to the electrodes. The method provides a generalization of previous interpolative schemes which have been applied to the purely electronic case extensively. As a test case we consider the single level Anderson-Holstein model. The results obtained with the interpolative ansatz are in good agreement with existing data from Numerical Renormalization Group calculations. We also check our results by considering the case of the electrodes represented by a few discrete levels which can be diagonalized exactly. The approximation describes properly the transition from the Kondo regime where electron-electron interactions dominate to the polaronic case characterized by a strong electron-phonon interaction.
description: 8 pages, 7 figures, accepted for publication in Physical Review B
On regularity properties of Bessel flow
Creators: name: Vostrikova, L.
Publisher: name: arXiv
Year: 2009
Subjects: subject: Probability (math.PR)
subject: FOS: Mathematics
subject: 60GXX, 60G17

description: We study the differentiability of Bessel flow $ρ: x \to ρ^x_t$, where $(ρ^x_t)_{t\geq 0}$ is BES $^x(δ$) process of dimension $δ>1$ starting from $x$. For $δ\geq 2$ we prove the existence of bicontinuous derivatives in P-a.s. sense at $x\geq 0$ and we study the asymptotic behaviour of the derivatives at $x=0$. For $1< δ<2$ we prove the existence of a modification of Bessel flow having derivatives in probability sense at $x\geq 0$. We study the asymptotic behaviour of the derivatives at $t=τ_0(x)$ where $τ_0(x)$ is the first zero of $(ρ^x_t)_{t\geq 0}$.
description: 21 pages, no figures
A study of the effect of the critical process Targeting method on business process understanding in medium sized financial services entities
Creators: name: Huxley, CM
Publisher: name: University Of Tasmania
Year: 2023

description: This thesis undertakes exploratory research into the area of business process understanding within the small and medium sized enterprises (SMEs) in Australia. Published evidence suggests that SMEs lag behind larger enterprises in their knowledge and use of tools and methods which may support business success. Highly competitive environments are likely to drive SMEs to change their business practices more rapidly than larger enterprises. This means that they require flexibility and agility to survive. SME understanding of what to change and the impact of that change is a critical element of their decision making. A process orientation for businesses is not a recent phenomenon, however for SMEs this can be a difficult change from the traditional functional view of business. A review of the literature identified evidence that supports the need for SMEs to have tools and or methods which progress their understanding of business processes (learning by doing). This research project considered this important gap in existing research by exploring the effect of the Critical Process Targeting Method (as one possible method) on business process understanding. 'Understanding' is the ability to explain, justify, extrapolate, relate and apply knowledge in ways that go beyond the basic knowledge and routine skill (Wiske & Breit 2010, p.5). This researcher takes the stance (which is neither right nor wrong, but instead a perspective on a situation) that from an ontological perspective, reality is the product of individual perception. The research is conducted as a qualitative interpretivist study in both data collection and analysis activities. This exploratory research investigated three medium sized entity case studies within the financial sector in Australia. The study used participant case studies to bound the data collection with interviews, documents and diary notes as the data collection methods. Data analysis was conducted using a grounded theory aligned data analysis based on a three phase coding approach. This research project makes three distinct contributions to Information Systems (IS) firstly, Business Process Management (BPM) and SME practice and knowledge. Theoretical: This study investigates the subject area using three new case studies in a little explored area of Information Systems and Business Process Management (BPM). Research Method: This project employs a variation of a Research Method approach, which has enabled the exploration of the Medium sized entities' business process understanding environment. Practice: This project has identified how the CPTM can be used to improve business process understanding and is suitable for SMEs in the financial services sector.
Nonlocal Modification of Newtonian Gravity
Creators: name: Blome, Hans-Joachim
name: Chicone, Carmen
name: Hehl, Friedrich W.
name: Mashhoon, Bahram
Publisher: name: arXiv
Year: 2010
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: The Newtonian regime of a recent nonlocal extension of general relativity (GR) is investigated. Nonlocality is introduced via a scalar "constitutive" kernel in a special case of the translational gauge theory of gravitation, namely, the teleparallel equivalent of GR. In this theory, the nonlocal aspect of gravity simulates dark matter. A nonlocal and nonlinear generalization of Poisson's equation of Newtonian gravitation is presented. The implications of nonlocality for the gravitational physics in the solar system are briefly studied.
description: 11 pages, 1 figure; v2: minor typos corrected, accepted for publication in Phys. Rev. D
Immobilized Ru‐Pincer Complexes for Continuous Gas‐Phase Low‐Temperature Methanol Reforming‐Improving the Activity by a Second Ru‐Complex and Variation of Hydroxide Additives
Creators: name: Schwarz, Christian H.
name: Kraus, Dominik
name: Alberico, Elisabetta
name: Junge, Henrik
name: Haumann, Marco
Publisher: name: Weinheim : Wiley-VCH
Year: 2021
Subjects: subject: Alkali hydroxide
subject: Immobilization
subject: Methanol reforming
subject: Ru-pincer catalyst
subject: Supported liquid phase
subject: 540

description: Ru-pincer complexes were immobilized as supported liquid phase (SLP) materials to allow the methanol reforming reaction as continuous gas phase process. Under reaction conditions, the liquid phase forms from the hydroxide coating. Several hydroxides were screened and CsOH showed highest activity compared to the standard KOH coating. The well-known Ru-pincer complex carbonylchlorohydrido [bis(2-di-i-propylphosphinoethyl)amine]ruthenium(II) is limited in catalyzing the final step of the methanol reforming. Addition of a second complex, having a methylated backbone in the pincer-ligand, could overcome these limitations. Significant enhancement of the overall catalytic activity was observed.
International transfers of personal data for health research following Schrems II: a problem in need of a solution
Creators: name: Hallinan, Dara
name: Bernier, Alexander
name: Cambon-Thomsen, Anne
name: Crawley, Francis P.
name: Dimitrova, Diana
name: Bauzer Medeiros, Claudia
name: Nilsonne, Gustav
name: Parker, Simon
name: Pickering, Brian
name: Rennes, Stéphanie
Publisher: name: Basingstoke : Stockton Press
Year: 2021
Subjects: subject: European Union
subject: Schrems II
subject: personal data
subject: 570
subject: 610

description: On 16 July 2020, the Court of Justice of the European Union issued their decision in the Schrems II case concerning Facebook's transfers of personal data from the EU to the US. The decision may have significant effects on the legitimate transfer of personal data for health research purposes from the EU. This article aims: (i) to outline the consequences of the Schrems II decision for the sharing of personal data for health research between the EU and third countries, particularly in the context of the COVID-19 pandemic; and, (ii) to consider certain options available to address the consequences of the decision and to facilitate international data exchange for health research moving forward.
Anticipating agoraphobic situations: the neural correlates of panic disorder with agoraphobia
Creators: name: Wittmann, A.
name: Schlagenhauf, Florian
name: Guhn, Anne
name: Lueken, Ulrike
name: Gaehlsdorf, C.
name: Stoy, M.
name: Bermpohl, Felix
name: Fydrich, Thomas
name: Pfleiderer, Bettina
name: Bruhn, Harald
name: Gerlach, Alexander L.
name: Kircher, T.
name: Straube, Benjamin
name: Wittchen, Hans-Ulrich
name: Heinz, Andreas
name: Arolt, Volker
name: Heinz, Andreas
name: Ströhle, A.
Publisher: name: Humboldt-Universität zu Berlin
Year: 2014
Subjects: subject: Agoraphobia
subject: anticipation
subject: functional magnetic resonance imaging
subject: insula
subject: panic
subject: ventral striatum
subject: Westphal paradigm
subject: 150 Psychologie

description: This publication is with permission of the rights owner freely accessible due to an Alliance licence and a national licence (funded by the DFG, German Research Foundation) respectively.
description: Background Panic disorder with agoraphobia is characterized by panic attacks and anxiety in situations where escape might be difficult. However, neuroimaging studies specifically focusing on agoraphobia are rare. Here we used functional magnetic resonance imaging (fMRI) with disorder-specific stimuli to investigate the neural substrates of agoraphobia. Method We compared the neural activations of 72 patients suffering from panic disorder with agoraphobia with 72 matched healthy control subjects in a 3-T fMRI study. To isolate agoraphobia-specific alterations we tested the effects of the anticipation and perception of an agoraphobia-specific stimulus set. During fMRI, 48 agoraphobia-specific and 48 neutral pictures were randomly presented with and without anticipatory stimulus indicating the content of the subsequent pictures (Westphal paradigm). Results During the anticipation of agoraphobia-specific pictures, stronger activations were found in the bilateral ventral striatum and left insula in patients compared with controls. There were no group differences during the perception phase of agoraphobia-specific pictures. Conclusions This study revealed stronger region-specific activations in patients suffering from panic disorder with agoraphobia in anticipation of agoraphobia-specific stimuli. Patients seem to process these stimuli more intensively based on individual salience. Hyperactivation of the ventral striatum and insula when anticipating agoraphobia-specific situations might be a central neurofunctional correlate of agoraphobia. Knowledge about the neural correlates of anticipatory and perceptual processes regarding agoraphobic situations will help to optimize and evaluate treatments, such as exposure therapy, in patients with panic disorder and agoraphobia.
Charged Rotating Kaluza-Klein Black Holes in Dilaton Gravity
Creators: name: Allahverdizadeh, Masoud
name: Matsuno, Ken
name: Sheykhi, Ahmad
Publisher: name: arXiv
Year: 2009
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We obtain a class of slowly rotating charged Kaluza-Klein black hole solutions of the five-dimensional Einstein-Maxwell-dilaton theory with arbitrary dilaton coupling constant. At infinity, the spacetime is effectively four-dimensional. In the absence of the squashing function, our solution reduces to the five-dimensional asymptotically flat slowly rotating charged dilaton black hole solution with two equal angular momenta. We calculate the mass, the angular momentum and the gyromagnetic ratio of these rotating Kaluza-Klein dilaton black holes. It is shown that the dilaton field and the non-trivial asymptotic structure of the solutions modify the gyromagnetic ratio of the black holes. We also find that the gyromagnetic ratio crucially depends on the dilaton coupling constant, α, and decreases with increasing αfor any size of the compact extra dimension.
description: 15 pages, 1 figures
Transient response of nonuniform dispersive media
Creators: name: Thorleifson, Jon Michael
Publisher: name: University of British Columbia
Year: 2011

description: The transient response of one-dimensional nonuniform dispersive media is studied through the use of numerical techniques for the inversion of the Laplace transforms of the transient signals. The media considered are those in which the permittivity varies in one spatial dimension only and for which an analytical or numerical solution of the wave equation can be obtained. Two numerical techniques for the inversion of Laplace transforms are used, one in which the inverse transform is obtained in terms of a series of generalized Laguerre polynomials and the other in which the inverse is obtained by direct numerical integration of the complex inversion integral. Responses are calculated for the following cases; (a) a uniform isotropic plasma, (b) dielectric media with a piecewise linear variation in permittivity and (c) isotropic cold plasmas with a piecewise linear variation in electron density, for step-modulated and rectangular-pulse-modulated carrier input signals. It is shown that the results for case (a) compare favorably with the known exact solution, for a unit-step-modulated carrier input signal.
Black Holes without Mass and Entropy in Lovelock Gravity
Creators: name: Cai, Rong-Gen
name: Cao, Li-Ming
name: Ohta, Nobuyoshi
Publisher: name: arXiv
Year: 2009
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We present a class of new black hole solutions in $D$-dimensional Lovelock gravity theory. The solutions have a form of direct product $\mathcal{M}^m \times \mathcal{H}^{n}$, where $D=m+n$, $\mathcal{H}^n$ is a negative constant curvature space, and are characterized by two integration constants. When $m=3$ and 4, these solutions reduce to the exact black hole solutions recently found by Maeda and Dadhich in Gauss-Bonnet gravity theory. We study thermodynamics of these black hole solutions. Although these black holes have a nonvanishing Hawking temperature, surprisingly, the mass of these solutions always vanishes. While the entropy also vanishes when $m$ is odd, it is a constant determined by Euler characteristic of $(m-2)$-dimensional cross section of black hole horizon when $m$ is even. We argue that the constant in the entropy should be thrown away. Namely, when $m$ is even, the entropy of these black holes also should vanish. We discuss the implications of these results.
description: V2, Revtex4, 27 pages, no figures, some details and references added, to be published in Phys.Rev.D
Anomalous binding of Fe atoms in chromium
Creators: name: Dubiel, S. M.
name: Zukrowski, J.
name: Cieslak, J.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Binding of 57Fe atoms in a metallic chromium was investigated in a Cr-Fe alloy, containing less than 0.1 at% Fe enriched to ~95 % in 57Fe isotope, using 57Fe-site Mossbauer spectroscopy. The binding force was derived from the Debye temperature, T_D, that, in turn, was calculated from the temperature dependence of the central shift of the Mossbauer spectra recorded in the range of 80 to 330 K. Following a temperature dependence of the line width that shows a minimum at ~155 K, two temperature intervals were considered: a low temperature one (LT) ranging from 80 to 155 K, and the T_D - value of 292 (12) K or 279 (34) K, and a high temperature one (HT) ranging from 155 to 330 K with the T_D - value of 399 (15) or 399 (25) K, depending on the fitting procedure. The corresponding values of the harmonic force (spring) constant are: 35.4 N/m and 66.1 N/m or 33.8 N/m and 66.1 N/m for the LT and HT, respectively. This means that in the HT range the binding force of 57Fe atoms by the Cr matrix is by a factor of ~1.9 - 2 stronger than that in the LT range. This anomaly is possibly related with a different polarization of the spin-density waves in the LT and HT "phases".
description: 3 figures, 9 pages, 28 references
Periodic precipitation in Cu-Ni-Co
Creators: name: Vandermousen, Roland F.
Publisher: name: University of British Columbia
Year: 2011

description: An investigation of precipitation was carried out on the system Cu-Ni-Co at temperatures varying from 600°C to 800°C over a wide range of composition . The precipitation process was studied primarily by use of X-ray diffraction techniques. The precipitation was observed to procede by a spinodal decomposition process. The initial wavelength of the modulated structure was in the range 40 to 55Å, in good agreement with the theory for spinodal decomposition. On ageing, a coarsening was observed for all alloys aged inside the spinodal. This coarsening appeared to follow a law of the form Q[superscript: m] – Qo[superscript: m] = k (t-to) where Q = wavelength at time t Qo = wavelength before the coarsening begins at time to k and m = constants The activation energy of the coarsening process was found to be 65 kcal/mole + 10 kcal suggesting that volume diffusion was the controlling factor. RESUME Le présent travail étudie la formation de précipités dans divers alliages du systéme Cu-Ni-Co au cours de vieillissements à des temperatures de 600°C a 800°C. L’évolution de la précipitation a été suivie principalement par diffraction des rayons X. On a observé que la précipitation procède par décomposition spinodale. La longeur d'onde initiale de la structure modulée est comprise entre 40 et 55Å; en bon accord avec la théorie de la décomposition spinodale de Cahn. Au cours du vieillissement on a mesuré un accroissement de la longeur d'onde pourtous les alliages traités à l'intérieur du spinodal. Cet accroissement de longeur d'onde obéit à une loi de la forme Q[superscript: m] – Qo[superscript: m] = k (t-to) ou Q = longeur d'onde au temps t Qo = longeur d’onde avant que le grossisement commence, à to k et m = constantes if energie d'activation du mécanisme de croissance des précipités a été déterminée; sa valeur, 65 kcal/mole suggére que la diffusion en volume est le facteur préponderant.
Bifurcations of Liouville Tori in Elliptical Billiards
Creators: name: Dragovic, Vladimir
name: Radnovic, Milena
Publisher: name: arXiv
Year: 2009
Subjects: subject: Exactly Solvable and Integrable Systems (nlin.SI)
subject: Dynamical Systems (math.DS)
subject: FOS: Physical sciences
subject: FOS: Mathematics

description: A detailed description of topology of integrable billiard systems is given. For elliptical billiards and geodesic billiards on ellipsoid, the corresponding Fomenko graphs are constructed.
description: 18 pages, 15 figures
Clues on the origin of galactic angular momentum from looking at galaxy pairs
Creators: name: Cervantes-Sodi, B.
name: Hernandez, X.
name: Park, Changbom
Publisher: name: arXiv
Year: 2009
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: We search for correlations between the spin in pairs of spiral galaxies, to study if the angular momentum gain for each galaxy was the result of tidal torques imprint by the same tidal field. To perform our study we made use of a sample of galaxy pairs identified using the Sloan Digital Sky Survey. We find a weak, but statistically significant correlation between the spin magnitude of neighbouring galaxies, but no clear alignment between their orientation. We show that events such as interactions with close neighbours play an important role in the value of the spin for the final configuration, as we find these interactions tend to reduce the value of the $λ$ spin parameter of late-type galaxies considerably, with dependence on the morphology of the neighbour. This implies that the original tidal field for each pair could have been similar, but the redistribution of angular momentum at later stages of evolution is important.
description: 10 pages, 4 figures, 1 table. Replaced to match the version accepted for publication in MNRAS
Continuous Flow Synthesis of Azoxybenzenes by Reductive Dimerization of Nitrosobenzenes with Gel‐Bound Catalysts
Creators: name: Schmiegel, Carsten J.
name: Berg, Patrik
name: Obst, Franziska
name: Schoch, Roland
name: Appelhans, Dietmar
name: Kuckling, Dirk
Publisher: name: Weinheim : Wiley-VCH Verl.
Year: 2021
Subjects: subject: Continuous flow
subject: Gel-bound catalysts
subject: Microfluidic reactor
subject: Organocatalysis
subject: Synthetic methods
subject: 540

description: In the search for a new synthetic pathway for azoxybenzenes with different substitution patterns, an approach using a microfluidic reactor with gel-bound proline organocatalysts under continuous flow is presented. Herein the formation of differently substituted azoxybezenes by reductive dimerization of nitrosobenzenes within minutes at mild conditions in good to almost quantitative yields is described. The conversion within the microfluidic reactor is analyzed and used for optimizing and validating different parameters. The effects of the different functionalities on conversion, yield, and reaction times are analyzed in detail by NMR. The applicability of this reductive dimerization is demonstrated for a wide range of differently substituted nitrosobenzenes. The effects of these different functionalities on the structure of the obtained azoxyarenes are analyzed in detail by NMR and single-crystal X-ray diffraction. Based on these results, the turnover number and the turnover frequency were determined.
COVID-19-Induced Disruptions of School Feeding Services Exacerbate Food Insecurity in Nigeria
Creators: name: Amare, Mulubrhan
name: Abay, Kibrom A.
name: Tiberti, Luca
name: Andam, Kwaw
name: Amare, Mulubrhan
name: Abay, Kibrom A.
name: Tiberti, Luca
name: Andam, Kwaw
Publisher: name: Unknown
Year: 2021
Subjects: Food Consumption/Nutrition/Food Safety
Public Economics

description: Paper# 19681
Pseudogap state in slightly doped by aluminium and praseodymium YBa$_2$Cu$_3$O$_{7-δ}$ single crystals with a given topology of plane defects
Creators: name: Vovk, R. V.
name: Obolenskii, M. A.
name: Zavgorodniy, A. A.
name: Lotnyk, D. A.
name: Kotvitskaya, K. A.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Other Condensed Matter (cond-mat.other)
subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: In present work the conductivity in the basis plane of YBaCuO single crystals slightly doped by Al and Pr with a pre-specified topology of twin boundaries has been investigated. The excess conductivity for the analyzed samples shows dependence like $Δσ\sim(1-T/T^*)\exp(Δ_{ab}^*/T)$ in wide temperature range $T_f
description: 3 pages, 2 figures
An investigation of the Greenback Flounder, Rhombosolea tapirina Gunther
Creators: name: Kurth, DE
Publisher: name: University Of Tasmania
Year: 2023

description: Apart from the work of Thomson and Anderton (1921), Finlay (1928), and Rapson (1940), little is known of the biology of southern hemisphere Heterosomata. As it is usual for fishery investigations to be first directed towards commercially important species the relative minor importance of the flatfishes in most southern countries accounts for the small contributions made to the knowledge of this interesting group. The three papers referred to above, describe work done in New Zealand.
Temporal evolution of product shock measures in TASEP with sublattice-parallel update
Creators: name: Jafarpour, F. H.
name: Masharian, S. R.
Publisher: name: arXiv
Year: 2009
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: It is known that when the steady state of a one-dimensional multispecies system, which evolves via a random-sequential updating mechanism, is written in terms of a linear combination of Bernoulli shock measures with random-walk dynamics, it can be equivalently expressed as a matrix-product state. In this case the quadratic algebra of the system always has a two-dimensional matrix representation. Our investigations show that this equivalence exists at least for the systems with deterministic sublattice-parallel update. In this paper we consider the totally asymmetric simple exclusion process on a finite lattice with open boundaries and sublattice-parallel update as an example.
description: 5 pages, reference added, minor revision
Continuous time multidimensional Markovian description of Levy walks
Creators: name: Lubashevsky, Ihor
name: Friedrich, Rudolf
name: Heuer, Andreas
Publisher: name: arXiv
Year: 2009
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: The paper presents a multidimensional model for nonlinear Markovian random walks that generalizes one we developed previously (Phys. Rev. E v.79, 011110, 2009) in order to describe the Levy type stochastic processes in terms of continuous trajectories of walker motion. This approach may open a way to treat Levy flights or Levy random walks in inhomogeneous media or systems with boundaries in the future. The proposed model assumes the velocity of a wandering particle to be affected by a linear friction and a nonlinear Langevin force whose intensity is proportional to the magnitude of the velocity for its large values. Based on the singular perturbation technique the corresponding Fokker-Planck equation is analyzed and the relationship between the system parameters and the Levy exponent is found. Following actually the previous paper we demonstrate also that anomalously long displacements of the wandering particle are caused by extremely large fluctuations in the particle velocity whose duration is determined by the system parameters rather than the duration of the observation interval. In this way we overcome the problem of ascribing to Levy random walks non-Markov properties.
description: 14 pages, 1 figure
Married Couple’s Rice Varietal Choice: Evidence from in Eastern India
Creators: name: Malabayabas, Maria Luz
name: Mishra, Ashok
name: Malabayabas, Maria Luz
name: Mishra, Ashok
Publisher: name: Unknown
Year: 2021
Subjects: Food Consumption/Nutrition/Food Safety
Consumer/Household Economics

description: Paper# 19689
A MIKE + UVES survey of Sub-Damped Lyman-Alpha Systems at z<1.5
Creators: name: Meiring, Joseph D.
name: Lauroesch, James T.
name: Kulkarni, Varsha P.
name: Peroux, Celine
name: Khare, Pushpa
name: York, Donald G.
Publisher: name: arXiv
Year: 2009
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: We have combined the results from our recent observations of Damped and sub-Damped Lyman-alpha systems with the MIKE and UVES spectrographs on the Magellan Clay and VLT Kueyen telescopes with ones from the literature to determine the N(HI)-weighted mean metallicity of these systems based both on Fe, a depleted element in QSO absorbers and the local ISM, and Zn a relatively undepleted element. In each case, the N(HI)-weighted mean metallicity is higher and shows faster evolution in sub-DLAs than the classical DLA systems. Large grids of photoionisation models over the sub-DLA \nhI range with CLOUDY show that the ionisation corrections to the abundances are in general small, however the fraction of ionized H can be up to ~90 per cent. The individual spectra have been shifted to the rest frame of the absorber and averaged together to determine the average properties of these systems at z<1.5. We find that the average abundance pattern of the Sub-DLA systems is similar to the gas in the halo of the Milky Way, with an offset of ~0.3 dex in the overall metallicity. Both DLAs and Sub-DLAs show similar characteristics in their relative abundances patterns, although the DLAs have smaller as well as higher and . We calculate the contribution of sub-DLAs to the metal budget of the Universe, and find that the sub-DLA systems at z<1.5 contain a comoving density of metals Omega_met (3.5-15.8)x10^{5} M_sun Mpc^{-3}, at least twice the comoving density of metals in the DLA systems. The sub-DLAs do however track global chemical evolution models much more closely than do the DLAs, perhaps indicating that they are a less dust biased metallicity indicator of galaxies at high redshifts than the DLA systems.
description: 13 Pages, 14 Pages: Accepted for Publication in MNRAS 5/2009 Added/Fixed references
Pome fruit orcharding in Tasmania: It's evolution and present geographic basis
Creators: name: Goodhand, WE
Publisher: name: University Of Tasmania
Year: 2023

description: The pome fruits are both the foremost crop and the most highly specialised form of agricultural activity in Tasmania - on almost all the holdings growing fruit commercially, apples and pears are the principal source of income. Commercial production is confined to a small number of well defined localities within seven major producing regions, for orcharding is an industry which benefits from concentration due to the need for many specialised facilities, namely packing sheds, cool stores, processing factories, case mills, transport services, marketing and shipping agencies. This localisation is even more striking in terms of area, for from 16,400 acres of apples and 1,400 acres of pears, a mere 5% of the total crop land, are produced annually fruit worth up to ¬¨¬£8,000,000, some 35% of Tasmanian agricultural production. Apple production is dominated by the southern group of producers, the Huon Valley, D'Entrecasteaux Channel, lower and mid-Derwent Valley, Tasman Peninsula and Triabunna, which have no less than 82.5% of the bearing trees. The northern regions in the Tamar and Mersey Valleys account for the remaining 17.5% of apple trees. Pear production is somewhat more evenly distributed with 31% of the trees in the north and 69% in the south but with no one region outstanding.
The Gauge Dual of A Warped Product of AdS_4 and A Squashed and Stretched Seven-Manifold
Creators: name: Ahn, Changhyun
name: Woo, Kyungsung
Publisher: name: arXiv
Year: 2009
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: Corrado, Pilch and Warner in 2001 have found the second 11-dimensional solution where the deformed geometry of S^7 in the lift contains S^2 x S^2. We identify the gauge dual of this background with the theory described by Franco, Klebanov and Rodriguez-Gomez recently. It is the U(N) x U(N) x U(N) gauge theory with two SU(2) doublet chiral fields B_1 transforming in the (N, Nbar, 1), B_2 transforming in the (1, N, Nbar), C_1 in the (1, Nbar, N) and C_2 in the (Nbar, N, 1) as well as an adjoint field Φin the (1, adj, 1) representation. By adding the mass term for adjoint field Φ, the detailed correspondence between fields of AdS_4 supergravity and composite operators of the IR field theory is determined. Moreover, we compute the spin-2 KK modes around a warped product of AdS_4 and a squashed and stretched seven-manifold. This background with global SU(2) x SU(2) x U(1)_R symmetry is related to a U(N) x U(N) x U(N) N=2 superconformal Chern-Simons matter theory with eighth-order superpotential and Chern-Simons level (1,1,-2). The mass-squared in AdS_4 depends on SU(2) x SU(2) x U(1)_R quantum numbers and KK excitation number. The dimensions of spin-2 operators are found.
description: 32pp; Some parts of section 2 moved to a new Appendix A, the arguments of supergravity fields in section 3 removed, one sentence after (2.15) added,the acknowledgments added and to appear in CQG
CSS090530:144011+494734: a new SU UMa-type dwarf nova in Bootes
Creators: name: Boyd, David
name: Dunckel, Nick
name: Foote, Jerry
name: Miller, Ian
Publisher: name: arXiv
Year: 2009
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: We report photometry and analysis of a previously unknown SU UMa-type dwarf nova in Bootes detected in outburst by the Catalina Real-time Transient Survey on 2009 May 30 with the discovery identifier CSS090530:144011+494734. This apparently stellar object had previously been catalogued by the Sloan Digital Sky survey as SDSS J144011.01+494733.4. We measured its mean superhump period over the first 3 days following detection as 0.06500(4) d at which point this changed to 0.06438(3) d. We detected a possible orbital period of 0.06322(8) d implying a mean superhump period excess of 0.020(2). After detection, the dwarf nova maintained steady brightness for 5 days before starting to fade. The outburst amplitude was 5.5 magnitudes above its quiescent level.
description: Accepted for publication in Journal of the British Astronomical Association, 8 pages, 7 figures, title changed and identification provenance clarified
Littoral fictions: Writing Tasmania and newfoundland
Creators: name: Polack, FM
Publisher: name: University Of Tasmania
Year: 2023

description: This thesis examines contemporary literary fiction which takes either the Canadian island of Newfoundland or the Australian island of Tasmania as its imaginative terrain. Utilising a comparative framework, it juxtaposes narratives which have helped construct these regional spaces during the last twenty-five years of the twentieth century. Informed by post-modern spatial theory, 'Littoral Fictions' is premised on the argument that places are produced, rather than simply reflected, in literary and other modes of cultural expression. Particularly important to the thesis are Michel de Certeau's assertion that 'every story is a travel story - a spatial practice' (The Practice of Everyday Life 115), and Fredric Jameson's contention that cultural and economic production are inextricably intertwined. Consequently, the thesis seeks to determine how and why Tasmania and Newfoundland figure within recent fiction, and to consider the ramifications of their constructions. 'Littoral Fictions' examines writing about leaving, walking around, and coming home to regional spaces. In the process, it addresses the work of Christopher Koch, Dennis Altman, Paul Bowdring, Wayne Johnston, Patrick Kavanagh, Robert Drewe, Mudrooroo, Bernice Morgan, Richard Flanagan and E. Annie Proulx, in particular detail. The thesis finds that Newfoundland and Tasmania play comparable, instigative roles within narratives hinging on the alternate spatial trajectories it identifies. Only rarely do these islands serve as sketchy or neutral backgrounds. Instead, their landscapes and histories are presented in detail, and important shifts in narrative action are associated with movements to, from, or within their boundaries. Paradoxically, the more insistently the islands are evoked as geographically, culturally and/or economically marginal, the more significant their role in the narrative - even to the point of their serving as representative spaces within national imaginaries. Literary constructions of Tasmania and Newfoundland diverge and converge in more specific ways, too. Stories about leaving the two islands are quite different, for instance, whilst the resemblance between narratives of homecoming is remarkable . . 'Littoral Fictions' does identify signs of a shift in the ways Tasmania and Newfoundland are spatialised in some recent writing. The thesis concludes by speculating that moves to figure the islands as more fully integrated with the world beyond their shores portend an important re-conceptualisation. In identifying parallels in typical figurations of Tasmania and Newfoundland, 'Littoral Fictions' seeks to participate in the project of constructing new connections between the respective islands and places elsewhere.
Hydrogel-based actuators: Possibilities and limitations
Creators: name: Ionov, L.
Publisher: name: Amsterdam [u.a.] : Elsevier
Year: 2014
Subjects: subject: Actuators
subject: Functional polymers
subject: Macro scale
subject: Mechanical work
subject: Microtechnology
subject: Polymer networks
subject: Stimuli-responsive
subject: Hydrogels
subject: 620

description: The rapid development of microtechnology in recent times has increased the necessity for the development of devices, which are able to perform mechanical work on the micro- and macroscale. Among all kinds of actuators, the ones based on stimuli-responsive hydrogels, which are three-dimensional polymer networks strongly imbibed with water, deserve particular attention. This paper aims to provide a brief overview of stimuli-responsive hydrogel actuators with respect to their sensitivity to different stimuli, different kinds of deformation, the possibilities of generating different types of movement, as well as their applications.