cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
$Υ(1s)\toγf_2(1270)$ Decay
Creators: name: Li, Bing An
Publisher: name: arXiv
Year: 2009
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: Decay $Υ(1s)\toγf_2(1270)$ is studied by an approach in which the tensor meson, $f_2(1270)$, is strongly coupled to gluons. Besides the strong suppression of the amplitude $Υ(1s)\toγgg, gg\to f_2$ by the mass of b-quark, d-wave dominance in $Υ(1s)\toγf_2(1270)$ is revealed from this approach, which provides a large enhancement. The combination of these two factors leads to larger $B(Υ(1s)\toγf_2(1270))$. The decay rate of $Υ(1s)\toγf_2(1270)$ and the ratios of the helicity amplitudes are obtained and they are in agreement with data.
description: 8 pages
title: Erfahrungen freikirchlicher Religionslehrkräfte mit der interkonfessionellen und interreligiösen Zusammenarbeit
title: „Uns unterscheidet einfach zu viel.“
titleType: Subtitle
Creators: name: Tarmann, Paul R.
name: Bozkaya, Dilek
name: Hemsing, Werner
name: Wunderli, Armin
Publisher: name: Universität Graz
Year: 2021

description: Seit Herbst 2014 unterrichten ca. 100 freikirchliche Religionslehrerinnen und
-lehrer an den Österreichischen Schulen. In diesem Beitrag wird auf Basis von
qualitativen Interviews und einer Onlinebefragung dargestellt, wie den freikirchlichen
Religionslehrkräften der Einstieg in das Schulsystem gelungen ist und ob
bzw. wie sie interreligiöses Lernen in ihrem Schulalltag gestalten konnten.
description: Since autumn 2014, about 100 free church teachers of religion have been teaching
in Austrian schools. Based on qualitative interviews and an online survey,
this article describes their entry into the school system. Furthermore, it will be
shown whether religion teachers were able to shape interreligious learning in
their everyday school life.
description: Schlagworte:
freikirchlicher Religionsunterricht – Pluralität – interreligiös – interkonfessionell
– religiöse Kompetenzen
description: Keywords:
Free Church religious education – plurality – interreligious – interdenominational
– religious competences
description: ÖRF 29 (2021) 2, 193–209
title: Switching Methods for Three-Dimensional Rotational Dynamics Using Modified Rodrigues Parameters
Creators: name: Banks, Matthew Jarrett
Publisher: name: Old Dominion University
publisherIdentifier: https://ror.org/04zjtrb98
publisherIdentifierScheme: ROR
Year: 2023

description: A rigid body in space has three degrees of rotational freedom. As a result, a minimum of three independent parameters is required to define the three-dimensional orientation of a rigid body. As is well known, every set of three independent parameters has at least one orientation where mathematical or geometrical singularities are encountered; therefore, when the use of a three-parameter representation is desired, a method for singularity avoidance must also be considered. A common practice for singularity avoidance is to switch between parameter sets whose singularities occur at different orientations. With this in mind, modified Rodrigues parameters (MRP) are considered the preferred three-parameter representation, especially for large arbitrary rotations. The reason why MRP are considered the preferred choice is twofold. First, their non-singular range exceeds that of many other popular three-parameter representations; this results in less frequent switching. Second is the existence of a set of shadow MRP whose singularities occur at different orientations than the original MRP set. When the need for switching occurs, note that the same kinematic differential equations hold for both the original and shadow set of parameters, which greatly simplifies the coding required to implement a MRP solution. Note that neither the use of MRP as orientation parameters nor MRP singularity avoidance by switching between the original and shadow sets are considered new concepts; however, this study contends that existing studies do not fully explore the details concerning how the switch between the original and shadow MRP sets is achieved. As a result, this study explores various methods for achieving the switch, demonstrates their implementation, and studies their performance relative to solution accuracy and computational efficiency.
Kepler Science Operations
Creators: name: Haas, Michael R.
name: Batalha, Natalie M.
name: Bryson, Steve T.
name: Caldwell, Douglas A.
name: Dotson, Jessie L.
name: Hall, Jennifer
name: Jenkins, Jon M.
name: Klaus, Todd C.
name: Koch, David G.
name: Kolodziejczak, Jeffrey
name: Middour, Chris
name: Smith, Marcie
name: Sobeck, Charles K.
name: Stober, Jeremy
name: Thompson, Richard S.
name: Van Clev, Jeffrey E.
Publisher: name: arXiv
Year: 2010
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: FOS: Physical sciences

description: Kepler's primary mission is a search for earth-size exoplanets in the habitable zone of late-type stars using the transit method. To effectively accomplish this mission, Kepler orbits the Sun and stares nearly continuously at one field-of-view which was carefully selected to provide an appropriate density of target stars. The data transmission rates, operational cycles, and target management requirements implied by this mission design have been optimized and integrated into a comprehensive plan for science operations. The commissioning phase completed all critical tasks and accomplished all objectives within a week of the pre-launch plan. Since starting science, the nominal data collection timeline has been interrupted by two safemode events, several losses of fine point, and some small pointing adjustments. The most important anomalies are understood and mitigated, so Kepler's technical performance metrics have improved significantly over this period and the prognosis for mission success is excellent. The Kepler data archive is established and hosting data for the science team, guest observers, and public. The first data sets to become publicly available include the monthly full-frame images, dropped targets, and individual sources as they are published. Data are released through the archive on a quarterly basis; the Kepler Results Catalog will be released annually starting in 2011.
description: Recently submitted to ApJL
The impact of halo concentration on the Sunyaev Zel'dovich effect signal from massive galaxy clusters
Creators: name: Baxter, Eric J.
name: Pandey, Shivam
name: Adhikari, Susmita
name: Cui, Weiguang
name: Shin, Tae-hyeon
name: Li, Qingyang
name: Rasia, Elena
Publisher: name: arXiv
Year: 2023
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: The Sunyaev Zel'dovich (SZ) effect is sensitive to the pressure of ionized gas inside galaxy clusters, which is in turn controlled largely by the gravitational potential of the cluster. Changing the concentration parameter describing the cluster mass distribution impacts the gravitational potential and thus the cluster SZ signal, with implications for cosmological and other analyses of SZ-selected clusters. We investigate the concentration-SZ relation in theory and simulations. We find that the impact of concentration on the inner SZ profile ($R \lesssim 0.75 R_{200c}$) can be captured with standard polytropic gas models. However, we find that such models do a poor job of reproducing the outer SZ profiles ($R \gtrsim 0.75 R_{200c}$) and the relation between the integrated SZ signal, $Y$, and concentration. This disagreement results from a sharp truncation of the gas pressure profile near the splashback radius, likely caused by virial shocks. We develop a simple description of the truncation that leads to a good match with the simulated SZ profiles out to several $R_{200c}$ for clusters of varying mass and concentration, and that also accurately predicts the concentration-$Y$ relationship. Finally, we determine how inference of the linear bias parameter and splashback radius for SZ-selected clusters can be biased by ignoring the concentration dependence of the SZ signal, finding that bias to the former is essentially negligible, while bias to the latter can be as much as 2\%.
description: 16 pages, 11 figures; replaced to match version accepted by MNRAS. Revised version uses an updated model for nonthermal pressure support, but conclusions are not impacted
Aging and effective temperatures near a critical point
Creators: name: Joubaud, Sylvain
name: Percier, Baptiste
name: Petrosyan, Artem
name: Ciliberto, Sergio
Publisher: name: arXiv
Year: 2008
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: The orientation fluctuations of the director of a liquid crystal(LC) are measured after a quench near the Fréedericksz transition, which is a second order transition driven by an electric field. We report experimental evidence that, because of the critical slowing down, the LC presents, after the quench, several properties of an aging system, such as power law scaling versus time of correlation and response functions. During this slow relaxation, a well defined effective temperature, much larger than the heat bath temperature, can be measured using the fluctuation dissipation relation.
description: to be published in PRL
Cobalt, nickel and selenium in Tasmanian ore minerals
Creators: name: Loftus-Hills, GD
Publisher: name: University Of Tasmania
Year: 2023

description: Analyses of Co, Ni and Se in pyrites and other minerals from a wide variety of Tasmanian ore deposits support a genetic relationship between the Mt. Lyell (pyritic - Cu) and Rosebery (banded In-Zn-Pb-Cu) deposits, and the Cambrian eugeosynclinal volcanic rocks in which they occur. The concentration trends for all the ores due to fundamental availability contain smaller-scale components due to depositional processes, which, except in one case, do not interfere with these trends. The components include impoverishment of Co (and Ni) during remobilization of sulphides, increase in Ni and decrease in Co away from the centre of zoned deposits, impoverishment of Ni (and Co) in replacement as compared with vein lodes, and regular and irregular partitioning of respectively Co-Ni and Se between coexisting minerals. The trends of Co-Ni in pyrite due to availability include the following: (a) The sedimentary-diagenetic pyrites generally contain Co/Ni < 0.5, but show no correlation of Co-Ni values with rock type, age, or degree of recrystallization. (b) Pyrites in the Cambrian acid-intermediate igneous rocks have Co/Ni ratios ranging 1-150, and contain up to 0.8% Co. (c) Pyrites from Devonian hypogene replacement and vein deposits show two main trends - 0-1500 ppm Ni, with Co/Ni < 1; and 0-400 ppm Co, with Ni ranging 10-100 ppm. The Se contents of sulphides associated with Cambrian and Devonian acid-intermediate igneous activity are indistinguishable, but the Savage River magnetite ore, the Cuni Cu-Ni ore, and particularly the Mt. Lyell ore are all enriched in Se, whereas the Rosebery ore is impoverished. The Co-Ni values in the Mt. Lyell and Rosebery ores follow the trend for pyrites in the Cambrian acid-intermediate igneous rocks. The dispersion of Se at Mt. Lyell is consistent with the postulated open-cast origin for the massive ores, and within the Rosebery lode, the stratification of the Co-Ni values, and their gradation between lode and normal sedimentary types, strongly suggest a sedimentary origin. These and other collated data suggest that ores associated with geosynclinal vulcanism may be characterized by (i) high to very high Co/Ni ratios, and often marked impoverishment in Ni, (ii) greater Co and Ni concentrations associated with Cu than with Pb-Zn ores, both within and between deposits, and (iii) a tendency for Co to correlate with Cu within deposits. In Tasmania, Se values are more closely controlled than Co-Ni in their fundamental availability by other than genetic factors, and within deposits they show less variation due to depositional processes. Selenium was analyzed by X-ray fluorescence spectrography, and Co and Ni by atomic absorption spectrophotometry. In the latter technique, because Fe caused both non-atomic absorption and chemical interferences in the flame, it was extracted with di-isopropyl ether.
How, what, where, when: Expedition metadata and data collection
Creators: name: Thomas, Jen
name: Pina Estany, Carles
Publisher: name: Zenodo
Year: 2021
Subjects: Antarctic Circumnavigation Expedition
ACE
Data management

description: Data management support was provided for the Antarctic Circumnavigation Expedition (ACE) which took place in the austral summer of 2016/17. This poster describes the tools and support that was given. This poster was presented at POLAR2018, a joint SCAR and IASC conference, in Davos, Switzerland.
description: The Antarctic Circumnavigation Expedition was made possible by funding from the Swiss Polar Institute and Ferring Pharmaceuticals.
Solitary waves for the Hartree equation with a slowly varying potential
Creators: name: Datchev, Kiril
name: Ventura, Ivan
Publisher: name: arXiv
Year: 2009
Subjects: subject: Analysis of PDEs (math.AP)
subject: Mathematical Physics (math-ph)
subject: FOS: Mathematics
subject: FOS: Physical sciences

description: We study the Hartree equation with a slowly varying smooth potential, $V(x) = W(hx)$, and with an initial condition which is $ε\le \sqrt h$ away in $H^1$ from a soliton. We show that up to time $|\log h|/h$ and errors of size $ε+ h^2$ in $H^1$, the solution is a soliton evolving according to the classical dynamics of a natural effective Hamiltonian. This result is based on methods of Holmer-Zworski, who prove a similar theorem for the Gross-Pitaevskii equation, and on spectral estimates for the linearized Hartree operator recently obtained by Lenzmann. We also provide an extension of the result of Holmer-Zworski to more general inital conditions.
description: 28 pages
Experimental realization of stable exceptional chains protected by non-Hermitian latent symmetries unique to mechanical systems
Creators: name: Cui, Xiaohan
name: Zhang, Ruo-Yang
name: Wang, Xulong
name: Wang, Wei
name: Ma, Guancong
name: Chan, C. T.
Publisher: name: arXiv
Year: 2023
Subjects: subject: Quantum Physics (quant-ph)
subject: Classical Physics (physics.class-ph)
subject: FOS: Physical sciences

description: Lines of exceptional points are robust in the 3-dimensional non-Hermitian parameter space without requiring any symmetry. However, when more elaborate exceptional structures are considered, the role of symmetry becomes critical. One such case is the exceptional chain (EC), which is formed by the intersection or osculation of multiple exceptional lines (ELs). In this study, we investigate a non-Hermitian classical mechanical system and reveal that a symmetry intrinsic to second-order dynamical equations, in combination with the source-free principle of ELs, guarantees the emergence of ECs. This symmetry can be understood as a non-Hermitian generalized latent symmetry, which is absent in prevailing formalisms rooted in first-order Schrödinger-like equations and has largely been overlooked so far. We experimentally confirm and characterize the ECs using an active mechanical oscillator system. Moreover, by measuring eigenvalue braiding around the ELs meeting at a chain point, we demonstrate the source-free principle of directed ELs that underlies the mechanism for EC formation. Our work not only enriches the diversity of non-Hermitian degeneracies, but also highlights the new potential for non-Hermitian physics in second-order dynamical systems.
description: 25 pages, 11 figures
Floret development and embryology of Oryzopsis hendersoni (Gramineae)
Creators: name: Mehlenbacher, Lyle Eugene
Publisher: name: University of British Columbia
Year: 2011

description: Previous research has shown, that Orysopsis hendersoni shares two features with Stipa and one with Oryzopsiso. A study of floret development and embryology was undertaken in order to obtain more points for comparison. Most of the twenty-six features of O. hendersoni resulting from this study are characteristic of Stipa and not Oryzopsisa. Therefore, it is proposed that O. hendersoni be transferred to Stipa. Evidence from this and other studies demonstrates that grass locidules can be foliar, stamen-like, or intermediate and that the gynoecium is unicarpellate. These facts are contradicted by claims of homology based on hypothetical phylogenies. Because use of the concept of homology has led to general acceptance of misleading assumptions in these and other instances and because the concept of homology is ambiguous and superfluous, it should not be used.
A bead on a hoop rotating about a horizontal axis: a 1-D ponderomotive trap
Creators: name: Johnson, Andrew K.
name: Rabchuk, James A.
Publisher: name: arXiv
Year: 2009
Subjects: subject: Classical Physics (physics.class-ph)
subject: Atomic Physics (physics.atom-ph)
subject: FOS: Physical sciences

description: We describe a simple mechanical system that operates as a ponderomotive particle trap, consisting of a circular hoop and a frictionless bead, with the hoop rotating about a horizontal axis lying in the plane of the hoop. The bead in the frame of the hoop is thus exposed to an effective sinusoidally-varying gravitational field. This field's component along the hoop is a zero at the top and bottom. In the same frame, the bead experiences a time-independent centrifugal force that is zero at the top and bottom as well. The system is analyzed in the ideal case of small displacements from the minimum, and the motion of the particle is shown to satisfy the Mathieu equation. In the particular case that the axis of rotation is tangential to the hoop, the system is an exact analog for the rf Paul ion trap. Various complicating factors such as anharmonic terms, friction and noise are considered. A working model of the proposed system has been constructed, using a ball-bearing rolling in a tube along the outside of a section of a bicycle rim. The apparatus demonstrates in detail the operation of an rf Paul trap by reproducing the dynamics of trapped atomic ions and illustrating the manner in which the electric potential varies with time.
description: Second external review for AJP, 28 pages double spaced, 11 figures
Self-Assembly in the Growth of Precious Opal
Creators: name: Stewart, A. M.
name: Chadderton, Lewis T.
name: Senior, Brian R.
Publisher: name: arXiv
Year: 2010
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: It is proposed that primary nucleation of amorphous microspherulites of hydrated silica in natural proto-precious-opal can be followed by a long range superlattice ordering process by means of electrostatic self-assembly. Necessary conditions in the thermodynamics are a high surface charge density on microspherulite surfaces, a long Debye length and an appropriate number density of nucleation centres. A further chemical requirement is a high alkaline environmental pH from 9 to 10. It is also proposed that the characteristic concentric spherical shell-like structure of spherulites, centred on primary nuclei, are due to sequential deposition of intrinsic salts which precipitate out when the corresponding solubility limits in the liquid are successively exceeded. It can be that the better-known sedimentation of microspherulites under gravity only plays part in the final stabilization period of overall growth.
description: 12 pages pdf http://dx.doi.org/10.1016/j.jcrysgro.2009.09.042
Effect of performance feedback on depressed and nondepressed psychiatric patients
Creators: name: McBride, Susan Kay
Publisher: name: University of British Columbia
Year: 2011

description: The present study investigated the effects of success and failure performance feedback on subjects' (a) prediction of their performance on a future task, (b) estimation of parental and stranger predictions of their performance, (c) post-task evaluation, and (d) conformity behavior. High and Low Depressed psychiatric patients, selected on the basis of the Beck Depression Inventory (DI) (Beck, 1961, 1967), were given an experimentally induced success, failure, or neutral experience on a task of time estimation. They were then asked to predict their performance on a task of matching geometric figures. The conformity situation involved subjects' estimation of line lengths, after being given an erroneous hint as to the length of each line. The only measure significantly related to depression level was the magnitude of conformity responses, on which Low Depressed patients gave a greater number of inches of error in the hinted direction than High Depressed patients. There was no difference between these two groups on the frequency of conformity responses. It was suggested that the lack of hypothesized differences between High and Low Depressed subjects may have been due to ineffectiveness of the DI in differentiating between depression levels, or due to limitations of Beck's theory in predicting the behavior of depressed patients in a nonsocial experimental situation. The lack of differences between the three experimental groups was probably due to aspects of the experimental situation which decreased the effectiveness of the performance feedback.
Drag, lift and torque correlations for axi-symmetric non-spherical particles in locally non-uniform flows
Creators: name: Chéron, Victor
name: Evrard, Fabien
name: van Wachem, Berend
Publisher: name: arXiv
Year: 2023
Subjects: subject: Fluid Dynamics (physics.flu-dyn)
subject: FOS: Physical sciences

description: This paper derives new correlations to predict the drag, lift and torque coefficients of axi-symmetric non-spherical rod-like particles for several fluid flow regimes and velocity profiles. The fluid velocity profiles considered are locally uniform flow and locally linear shear flow. The novel correlations for the drag, lift and torque coefficients depend on the particle Reynolds number \Rep, the orientation of the particle with respect to the main fluid direction $θ$, the aspect ratio of the rod-like particle $α$, and the dimensionless local shear rate $\tilde{G}$. The effect of the linear shear flow on the hydrodynamic forces is modeled as an additional component for the resultant of forces acting on a particle in a locally uniform flow, hence the independent expressions for the drag, lift and torque coefficients of axi-symmetric particles in a locally uniform flow are also provided in this work. The data provided to fit the coefficient in the new correlation are generated using available analytical expressions in the viscous regime, and performing direct numerical simulations (DNS) of the flow past the axi-symmetric particles at finite particle Reynolds number. The DNS are performed using the direct-forcing immersed boundary method. The coefficients in the proposed drag, lift and torque correlations are determined with a high degree of accuracy, where the mean error in the prediction lies below $2\%$ for the locally uniform flow correlations, and below $1.67\%$, $5.35\%$, $6.78\%$ for the correlations accounting for the change in the drag, lift, and torque coefficients in case of a linear shear flow, respectively. The proposed correlations for the drag, lift and torque coefficients can be used in large-scale simulations performed in the Eulerian-Lagrangian framework with locally uniform and non-uniform flows.
A study of the functions of the human labyrinth and of the labyrinth tests : with the submission of a design for the assessment of the labyrinth functions.
Creators: name: Lyrmont, Michel
Publisher: name: University Of Tasmania
Year: 2023

description: In the General Introduction, the raison Petre of this thesis was outlined, and its general structure formulated and justified. The major advances made in labyrinthology and the anatomical structure of the apparatus were outlined in the first two chapters, The purpose of these two chapters was to provide the reader with an overview of the status quo of labyrinthdlogy as a discipline, and to familiarize him with the structure of the apparatus, as frequent references to the anatomy of the system were made in subsequent chapters. There exists, in labyrinthology, a considerable body of disagreement as to what constitutes an adequate stimulatory technique, and an adequate mode of response observation. The major areas of contention were therefore outlined, and then individually investigated in the body of this thesis. Upon the conclusions thus reached, a comprehensive technique for the assessment of the labyrinth functions was finally formulated. From the above mentioned investigations, it was concluded that the so called Second Law of Ewald is not valid when applied to man. It was also concluded that of all the stimulatory techniques employed, the rotation test was the most suitable for the stimulation of the semicircular canals, provided the stimulation was administered at threshold. As for the response, it was concluded that the nystagmus phenomenon is the most acceptable form of expression of labyrinthine activity, provided a criterion of occurrence vs non-occurrence was used instead of post threshold parameters such as duration and amplitude It was also concluded that to be comprehensive, a technique must include the stimulation of the otoliths, and that each pair of saccules and utricles can be independently assessed by the administration of specific linear accelerations, resulting in an ocular countermotion response. It was also demonstrated that there are several patterns of post stimulatory nystagmus which are said to be expressive of specific pathologies. This however was proved to be incorrect, as unusual patterns of nystagmus can occur in normal subjects. A comprehensive assessment technique was formulated in the last chapter of this thesis. The technique thus formulated in the last chapter permits the individual assessment of each canal, and the assessment of each pair of otolithic sub-organs. When a pathology is present on the oculomotor tract,. the technique permits the location of its precise site.
SOCIAL MEDIA ADDICTION AND HOW WE CAN BETTER USE OUR TIME IN SOCIAL MEDIA
Creators: name: Mohamud, Abdifatah Ali
Publisher: name: SORER
Year: 2021
Subjects: Social
Media
Addiction
Privacy
Distractions
SomNOG5
SomNOG

description: Eng. Abdifatah Ali Mohamud, Co-founder and ICT manager of the Digital Shelter delivered this presentation at the 5th Annual Conference of the Somali Network Operators' Group (SomNOG).
Comparing Quantum Service Offerings
Creators: name: Obst, Julian
name: Barzen, Johanna
name: Beisel, Martin
name: Leymann, Frank
name: Salm, Marie
name: Truger, Felix
Publisher: name: arXiv
Year: 2023
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: With the emergence of quantum computing, a growing number of quantum devices is accessible via cloud offerings. However, due to the rapid development of the field, these quantum-specific service offerings vary significantly in capabilities and requirements they impose on software developers. This is particularly challenging for practitioners from outside the quantum computing domain who are interested in using these offerings as parts of their applications. In this paper, we compare several devices based on different hardware technologies and provided through different offerings, by conducting the same experiment on each of them. By documenting the lessons learned from our experiments, we aim to simplify the usage of quantum-specific offerings and illustrate the differences between predominant quantum hardware technologies.
description: 4 pages, 4 figures
Room Temperature Ferrimagnetism, Magnetodielectric and Exchange Bias Effect in CoFeRhO$_4$
Creators: name: Mohanty, P.
name: Sharma, N.
name: Singh, D.
name: Breard, Y.
name: Pelloquin, D.
name: Marik, S.
name: Singh, R. P.
Publisher: name: arXiv
Year: 2023
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: Geometrically frustrated structures combined with competing exchange interactions that have different magnitudes are known ingredients for achieving exotic properties. Herein, we studied detailed structural, magnetic, thermal (specific heat), magneto-dielectric, and magnetic exchange bias properties of a mixed 3d - 4d spinel oxide with composition CoFeRhO$_4$. Detailed magnetization, heat capacity, and neutron powder diffraction studies (NPD) highlight long-range ferrimagnetic ordering with an onset at 355 K. The magnetic structure is established using a ferrimagnetic model (collinear-type) that has a propagation vector k = 0, 0, 0. The magneto-dielectric effect appears below the magnetic ordering temperature, and the exchange bias (EB) effect is observed in field cooled (FC) conditions below 355 K. The magneto-dielectric coupling in CoFeRhO$_4$ originates due to the frustration in the structure, collinear ferrimagnetic ordering, and uncompensated magnetic moments. The unidirectional anisotropy resulting from the uncompensated magnetic moments causes the room-temperature exchange bias effect. Remarkably, the appearance of technologically important properties (ferromagnetism, magnetodielectric effect, and EB) at room temperature in CoFeRhO$_4$ indicates its potential use in sensors or spintronics.
description: 8 pages, 11 Figures
Degree correlation effect of bipartite network on personalized recommendation
Creators: name: Liu, Jian-Guo
name: Zhou, Tao
name: Xuan, Zhao-Guo
name: Che, Hong-An
name: Wang, Bing-Hong
name: Zhang, Yi-Cheng
Publisher: name: arXiv
Year: 2009
Subjects: subject: Data Analysis, Statistics and Probability (physics.data-an)
subject: Information Retrieval (cs.IR)
subject: Physics and Society (physics.soc-ph)
subject: FOS: Physical sciences
subject: FOS: Computer and information sciences

description: In this paper, by introducing a new user similarity index base on the diffusion process, we propose a modified collaborative filtering (MCF) algorithm, which has remarkably higher accuracy than the standard collaborative filtering. In the proposed algorithm, the degree correlation between users and objects is taken into account and embedded into the similarity index by a tunable parameter. The numerical simulation on a benchmark data set shows that the algorithmic accuracy of the MCF, measured by the average ranking score, is further improved by 18.19% in the optimal case. In addition, two significant criteria of algorithmic performance, diversity and popularity, are also taken into account. Numerical results show that the presented algorithm can provide more diverse and less popular recommendations, for example, when the recommendation list contains 10 objects, the diversity, measured by the hamming distance, is improved by 21.90%.
description: 9 pages, 3 figures
The significance of raw material quality on thermo-mechanical properties
Creators: name: Moehmel, Steffen
name: Weissenbacher, Michael
name: Kurz, Bernhard
name: Joubert, Olivier
Publisher: name: Zenodo
Year: 2016
Subjects: refractory
andalusite
impurity
microstructure

description: Within the scope of a larger project we characterized different refractory raw materials itself and – besides others – also investigated the thermo-mechanical properties of shaped and unshaped products based on these. The raw materials considered within this study were of different types of the system Al2O3 / SiO2 – e.g. andalusite, mullite and pure alumina. The investigation of the raw materials itself focused mainly on the chemical and mineralogical composition as well as on microstructural features. Bricks and castables were produced by standardized procedures and recipes in order to ensure the direct comparison of the results obtained. Several interesting effects could be observed by characterizing the refractoriness under load (RuL), creep in compression (CiC) and thermal shock behaviour of the bricks and castables. On different examples the causes and interdependencies of these effects on the raw materials properties will be displayed and discussed more deeply. The results show that the raw material quality is the decisive factor for the behaviour of the refractory products at high temperatures and thus determining their performance in demanding applications. Especially the impurity level is responsible for the temperature at which a first melting phase is formed but additionally determines their amount as well as viscosity and this, in turn, influences the course of RuL and CiC. Additionally some other characteristics like porosity and microstructural features have an impact too.
Binding two-loop vacuum-polarization corrections to the bound-electron g factor
Creators: name: Jentschura, U. D.
Publisher: name: arXiv
Year: 2009
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We commence the evaluation of the one- and two-loop binding corrections to the $g factor for an electron in a hydrogenlike system of order alpha^2 (Z alpha)^5 and consider diagrams with closed fermion loops. The one-loop vacuum-polarization correction is rederived and confirmed. For the two-loop vacuum-polarization correction, due to a specific gauge-invariant set of diagrams with closed fermion loops, we find a correction delta g = 7.442 (alpha/pi)^2 (Z alpha)^5. Based on the numerical trend of the coefficients inferred from the gauge-invariant subset, we obtain a numerically large tentative estimate for the complete two-loop binding correction to the g factor (sum of self-energy and vacuum polarization).
description: 4 pages, RevTeX
Enhancing piezoelectricity through polarization-strain coupling in ferroelectric superlattices
Creators: name: Cooper, Valentino R.
name: Rabe, Karin M.
Publisher: name: arXiv
Year: 2009
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Short period ferroelectric/ferroelectric BaTiO3 (BTO)/PbTiO3 (PTO) superlattices are studied using density functional theory. Contrary to the trends in paraelectric/ferroelectric superlattices the polarization remains nearly constant for PTO concentrations below 50%. In addition, a significant decrease in the c/a ratio below the PTO values were observed. Using a superlattice effective Hamiltonian we predict an enhancement in the d33 piezoelectric coefficient peaking at ~75% PTO concentration due to the different polarization-strain coupling in PTO and BTO layers. Further analysis reveals that these trends are bulk properties which are a consequence of the reduced $P$ brought about by the polarization saturation in the BTO layers.
A translator from object structured query language into object algebra expression
Creators: name: Hussain, Sainaaz Bi
Publisher: name: University Of Tasmania
Year: 2023

description: Object-Oriented database management systems have been proposed as the effective solution to providing the database management facilities for complex applications. This project involves in deriving a set of rules which specifies the translation of Object SQL statements into an Object Algebra expression. The language chosen for this project is Object SQL (Object Structured Query Language). Object SQL is a high-level user language whose standard does not exist yet. OA (_Qbject Algebra) is an intermediate level target language designed for a range of user languages. The algebra used in this project is defined by Dave Straube. This algebra is used as the target language for the translation of the Object SQL query statement into the equivalent Object Algebra expression. Object algebra is used for the procedural specification of queries which can then be used for the optimisation of queries.
Hydrodynamical Response of a Circumbinary Gas Disk to Black Hole Recoil and Mass Loss
Creators: name: Corrales, Lia R.
name: Haiman, Zoltán
name: MacFadyen, Andrew
Publisher: name: arXiv
Year: 2009
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: Finding electromagnetic (EM) counterparts of future gravitational wave (GW) sources would bring rich scientific benefits. A promising possibility, in the case of the coalescence of a super-massive black hole binary (SMBHB), is that prompt emission from merger-induced disturbances in a supersonic circumbinary disk may be detectable. We follow the post-merger evolution of a thin, zero-viscosity circumbinary gas disk with two-dimensional simulations, using the hydrodynamic code FLASH. We analyze perturbations arising from the 530 km/s recoil of a 10^6 M_sun binary, oriented in the plane of the disk, assuming either an adiabatic or a pseudo-isothermal equation of state for the gas. We find that a single-armed spiral shock wave forms and propagates outward, sweeping up about 20% of the mass of the disk. The morphology and evolution of the perturbations agrees well with those of caustics predicted to occur in a collisionless disk. Assuming that the disk radiates nearly instantaneously to maintain a constant temperature, we estimate the amount of dissipation and corresponding post-merger light-curve. The luminosity rises steadily on the time-scale of months, and reaches few times 10^{43} erg/s, corresponding to about 10% of the Eddington luminosity of the central SMBHB. We also analyze the case in which gravitational wave emission results in a 5% mass loss in the merger remnant. The mass-loss reduces the shock overdensities and the overall luminosity of the disk by 15-20%, without any other major effects on the spiral shock pattern.
description: 16 pages with 14 figures, submitted to MNRAS
R-modes as a New Probe of Dark Matter in Neutron Stars
Creators: name: Shirke, Swarnim
name: Ghosh, Suprovo
name: Chatterjee, Debarati
name: Sagunski, Laura
name: Schaffner-Bielich, Jürgen
Publisher: name: arXiv
Year: 2023
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: In this work, we perform the first systematic investigation of effects of the presence of dark matter on $r$-mode oscillations in neutron stars (NSs). Using a self-interacting dark matter (DM) model based on the neutron decay anomaly and a hadronic model obtained from the posterior distribution of a recent Bayesian analysis, we impose constraints on the DM self-interaction strength using recent multimessenger astrophysical observations. We also put new constraints on the DM fraction for this model of DM. The constrained DM interaction strength is then used to estimate DM self-interaction cross section and shear viscosity resulting from DM, which is found to be several orders of magnitude smaller than shear viscosity due to hadronic matter. Assuming chemical equilibrium among DM fermions and neutrons, we estimate the bulk viscosity resulting from the dark decay of neutrons considering different scenarios for the temperature dependence of the reaction rate and investigate the effect on the $r$-mode instability window. We conclude that DM shear and bulk viscosity may significantly modify the $r$-mode instability window compared with the minimal hadronic viscosities, depending on the temperature dependence of the process. We also found that for the window to be compatible with the X-ray and pulsar observational data, the rate for the dark decay process must be fast.
description: 29 pages, 12 figures, 1 table. Manuscript published in JCAP. This is the Accepted Manuscript version of an article accepted for publication in JCAP. Neither SISSA Medialab Srl nor IOP Publishing Ltd is responsible for any errors or omissions in this version of the manuscript or any version derived from it. The Version of Record is available online at https://doi.org/10.1088/1475-7516/2023/12/008
Chapter 7: The Earth’s energy budget, climate feedbacks, and climate sensitivity
Creators: name: Forster, Piers
name: Storelvmo, Trude
name: Armour, Kyle
name: Collins, William
name: Dufresne, Jean-Louis
name: Frame, David
name: Lunt, Dan
name: Mauritsen, Thorsten
name: Palmer, Matthew
name: Watanabe, Masahiro
name: Wild, Martin
name: Zhang, Hua
Publisher: name: Open Access Te Herenga Waka-Victoria University of Wellington
Year: 2021

description: No description supplied
Radiation pressure and pulsation effects on the Roche lobe
Creators: name: Dermine, T.
name: Jorissen, A.
name: Siess, L.
name: Frankowski, A.
Publisher: name: arXiv
Year: 2009
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: Several observational pieces of evidence indicate that specific evolutionary channels which involve Roche lobe overflow are not correctly accounted for by the classical Roche model. We generalize the concept of Roche lobe in the presence of extra forces (caused by radiation pressure or pulsations). By computing the distortion of the equipotential surfaces, we are able to evaluate the impact of these perturbing forces on the stability of Roche-lobe overflow (RLOF). Radiative forces are parametrized through the constant reduction factor that they impose on the gravitational force from the radiating star (neglecting any shielding in case of large optical thickness). Forces imparted by pulsations are derived from the velocity profile of the wind that they trigger. We provide analytical expressions to compute the generalized Roche radius. Depending on the extra force, the Roche-lobe radius may either stay unchanged, become smaller, or even become meaningless (in the presence of a radiatively- or pulsation-driven wind). There is little impact on the RLOF stability.
description: 11 pages, 13 Postscript figures
Roman Słupek SDS, Kto wierzy, nigdy nie jest sam. Wiara, Kościół i wierzący inaczej w myśli Benedykta XVI, Wydawnictwo Salwator, Kraków 2012
Creators: name: Laszczyńska-Fankanowska, Krystyna
Publisher: name: Wrocławski Przegląd Teologiczny
Year: 2020

description: Wrocławski Przegląd Teologiczny, Vol 21 No 1 (2013)
Relativistic Particle in Complex Space Time
Creators: name: Hori, Takayuki
Publisher: name: arXiv
Year: 2009
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: A modified version of the bilocal particle is presented in terms of complex space time. Unusual constraint structure of the model is studied, and a new concept of the physical equivalence is proposed in accordance with Dirac's conjecture. It is found that in the quantum theory the physical state conditions are compatible with existence of eigenstates of momentum only when the dimension of space time is four. An example of scattering amplitude is calculated.
description: 15 pages
A comparison of oldgrowth mixed forest with regeneration resulting from logging or wildfire
Creators: name: Hickey, J
Publisher: name: University Of Tasmania
Year: 2023

description: Up to 194,000 ha, or 20 percent, of Tasmania's wet eucalypt forest is mature mixed forest greater than 110 years old. At least 33 percent of the mixed forest is reserved in the Tasmanian Wilderness World Heritage Area (TVVWHA) or in State and Forest Reserves outside the TWWHA. Almost half the area of mixed forest with a mature myrtle understorey has a eucalypt density of only 5-20 percent which implies that it is in the last successional stage prior to becoming rainforest. A comparison of the floristics of 20-30-year-old silvicultural and wildfire regeneration with oldgrowth mixed forest showed that species richness for all lifeforms other than epiphytic ferns was greater in regenerated forest than in oldgrowth mixed forest. Most of the common species in oldgrowth mixed forest were represented in approximately similar frequencies in silvicultural and wildfire regeneration. The major floristic difference between the two regeneration types was the much lower frequency of epiphytic fern species in silvicultural regeneration. The floristic composition of oldgrowth mixed forest is profoundly influenced by either wildfire or clearfelling and slash burning but the composition of the regeneration is more influenced by environmental variables than by the nature of the disturbance which initiated the regeneration. Comparisons indicated only slight differences in growth and density of tree and tall shrub species between silvicultural and wildfire regeneration. Growth of rainforest tree species in young regenerated stands was very slow due, apparently, to suppression by a dense layer of taller sclerophyllous trees and shrubs. The density of most rainforest tree species was lower in regenerated sites than in oldgrowth mixed forest but there was no significant difference between logged and wildfire sites. The density of common rainforest shrub species was similar in all three site types. Several rainforest species with short seed dispersal distances can regenerate vegetatively after fire. There was no difference between silvicultural and wildfire regeneration in the amount of vegetative regeneration of rainforest canopy species. Basal sprouting of rainforest canopy species occurred in the first year following disturbance but seedlings took several years to become established. No significant differences were found in seedling establishment time of rainforest canopy species. Five woody rainforest species regenerated from soil seed banks and included two species which took more than one year to germinate. The species similarity between oldgrowth mixed forest stands and their soil seed banks was low.
Gap Probabilities in Non-Hermitian Random Matrix Theory
Creators: name: Akemann, G.
name: Phillips, M. J.
name: Shifrin, L.
Publisher: name: arXiv
Year: 2009
Subjects: subject: Mathematical Physics (math-ph)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We compute the gap probability that a circle of radius r around the origin contains exactly k complex eigenvalues. Four different ensembles of random matrices are considered: the Ginibre ensembles and their chiral complex counterparts, with both complex (beta=2) or quaternion real (beta=4) matrix elements. For general non-Gaussian weights we give a Fredholm determinant or Pfaffian representation respectively, depending on the non-Hermiticity parameter. At maximal non-Hermiticity, that is for rotationally invariant weights, the product of Fredholm eigenvalues for beta=4 follows from beta=2 by skipping every second factor, in contrast to the known relation for Hermitian ensembles. On additionally choosing Gaussian weights we give new explicit expressions for the Fredholm eigenvalues in the chiral case, in terms of Bessel-K and incomplete Bessel-I functions. This compares to known results for the Ginibre ensembles in terms of incomplete exponentials. Furthermore we present an asymptotic expansion of the logarithm of the gap probability for large argument r at large N in all four ensembles, up to including the third order linear term. We can provide strict upper and lower bounds and present numerical evidence for its conjectured values, depending on the number of exact zero eigenvalues in the chiral ensembles. For the Ginibre ensemble at beta=2 exact results were previously derived by Forrester.
description: 34 pages, 2 figures; Reference on asymptotic expansion added