cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Distributions on symmetric cones I: Riesz distribution
Creators: name: Diaz-Garcia, Jose A.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Statistics Theory (math.ST)
subject: FOS: Mathematics
subject: 60E05, 62E15, 15A52

description: The Riesz distribution for real normed division algebras is derived in this work. Then two versions of these distributions are proposed and some of their properties are studied.
description: P. 5, properties 1., 2. and 5 have been modified. Throughout the article the square root decomposition was replaced by the Cholesky decomposition; and each expression of Riesz type II distribution, $q_{\kappa}(\mathbf{\Sigma})$ must be replaced by $q_{\kappa}^{-1}(\mathbf{\Sigma}^{-1})$. P. 8. In expression (23) the left side has ben deleted. P. 8. Theorem 2 and its proof have been modified
The "theory-practice gap": Turning theory into practice in a pre-service teacher education program
Creators: name: Allen, Jeanne
Publisher: name: CQUniversity
Year: 2017
Subjects: classificationCode: 390399
subject: Education systems not elsewhere classified
classificationCode: 390199
subject: Curriculum and pedagogy not elsewhere classified

description: This thesis investigates the theory-practice gap using the exemplar of teacher education. The research is situated in a pre-service teacher education program that explicitly seeks to bridge the theory-practice gap so that it produces “learning managers” who can negotiate the contemporary knowledge society in ways different to those of their predecessors. The empirical work reported in this thesis describes and interprets the experiences of preservice and beginning teachers in turning theory into practice. In order to accomplish this outcome, the thesis draws on Mead’s theory of emergence and symbolic interactionism to provide a theoretical perspective for meaning-making in social situations. Data for the study were collected through interviews and focus groups involving a sample of first-year graduate teachers of an Australian pre-service teacher education program. The main finding of this thesis is that the theory-practice gap in pre-service teacher education under present institutional arrangements is an inevitable phenomenon arising as individuals undergo the process of emergence from pre-service to graduate and then beginning teachers. The study shows that despite the efforts of the program developers, environmental, social and cultural conditions in teacher education processes and structures and in schools inhibit the trainee and novitiate teacher from exercising agency to effect change in traditional classroom practices. Thus, the gap between theory and practice is co-produced and sustained in the model that characterises contemporary preservice teacher education in the perspectives of lecturers, teachers and administrators -- Abstract.
Random lattice triangulations: Structure and algorithms
Creators: name: Caputo, Pietro
name: Martinelli, Fabio
name: Sinclair, Alistair
name: Stauffer, Alexandre
Publisher: name: arXiv
Year: 2012
Subjects: subject: Probability (math.PR)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Combinatorics (math.CO)
subject: FOS: Mathematics
subject: FOS: Physical sciences

description: The paper concerns lattice triangulations, that is, triangulations of the integer points in a polygon in $\mathbb{R}^2$ whose vertices are also integer points. Lattice triangulations have been studied extensively both as geometric objects in their own right and by virtue of applications in algebraic geometry. Our focus is on random triangulations in which a triangulation $σ$ has weight $λ^{|σ|}$, where $λ$ is a positive real parameter, and $|σ|$ is the total length of the edges in $σ$. Empirically, this model exhibits a "phase transition" at $λ=1$ (corresponding to the uniform distribution): for $λ<1$ distant edges behave essentially independently, while for $λ>1$ very large regions of aligned edges appear. We substantiate this picture as follows. For $λ<1$ sufficiently small, we show that correlations between edges decay exponentially with distance (suitably defined), and also that the Glauber dynamics (a local Markov chain based on flipping edges) is rapidly mixing (in time polynomial in the number of edges in the triangulation). This dynamics has been proposed by several authors as an algorithm for generating random triangulations. By contrast, for $λ>1$ we show that the mixing time is exponential. These are apparently the first rigorous quantitative results on the structure and dynamics of random lattice triangulations.
description: Published at http://dx.doi.org/10.1214/14-AAP1033 in the Annals of Applied Probability (http://www.imstat.org/aap/) by the Institute of Mathematical Statistics (http://www.imstat.org)
Accelerated expansion from ghost-free bigravity: a statistical analysis with improved generality
Creators: name: Akrami, Yashar
name: Koivisto, Tomi S.
name: Sandstad, Marit
Publisher: name: arXiv
Year: 2012
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We study the background cosmology of the ghost-free, bimetric theory of gravity. We perform an extensive statistical analysis of the model using both frequentist and Bayesian frameworks and employ the constraints on the expansion history of the Universe from the observations of supernovae, the cosmic microwave background and the large scale structure to estimate the model's parameters and test the goodness of the fits. We explore the parameter space of the model with nested sampling to find the best-fit chi-square, obtain the Bayesian evidence, and compute the marginalized posteriors and mean likelihoods. We mainly focus on a class of sub-models with no explicit cosmological constant (or vacuum energy) term to assess the ability of the theory to dynamically cause a late-time accelerated expansion. The model behaves as standard gravity without a cosmological constant at early times, with an emergent extra contribution to the energy density that converges to a cosmological constant in the far future. The model can in most cases yield very good fits and is in perfect agreement with the data. This is because many points in the parameter space of the model exist that give rise to time-evolution equations that are effectively very similar to those of the $Λ$CDM. This similarity makes the model compatible with observations as in the $Λ$CDM case, at least at the background level. Even though our results indicate a slightly better fit for the $Λ$CDM concordance model in terms of the $p$-value and evidence, none of the models is statistically preferred to the other. However, the parameters of the bigravity model are in general degenerate. A similar but perturbative analysis of the model as well as more data will be required to break the degeneracies and constrain the parameters, in case the model will still be viable compared to the $Λ$CDM.
description: 42 pages, 9 figures; typos corrected in equations (2.12), (2.13), (3.7), (3.8) and (3.9); more discussions added (footnotes 5, 8, 10 and 13) and abstract, sections 4.2, 4.3 and 5 (conclusions) modified in response to referee's comments; references added; acknowledgements modified; all results completely unchanged; matches version accepted for publication in JHEP
The role of intellectual capital in the financial performance of listed manufacturing firms in Pakistan
Creators: name: Sultan, Parves
name: Butt, Farooq
Publisher: name: CQUniversity
Year: 2023
Subjects: classificationCode: 350101
subject: Accounting theory and standards

description: This study examined how value-added intellectual capital (VAIC) influences financial performance of manufacturing firms in Pakistan. The study was unique in examining the short-term and long-term profit performance of all publicly listed manufacturing firms in Pakistan.
New limit on pseudoscalar-photon mixing from WMAP Observations
Creators: name: Tiwari, Prabhakar
Publisher: name: arXiv
Year: 2012
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: The pseudoscalar-photon mixing in presence of large scale magnetic field induces polarization in light from distant cosmological sources. We study the effect of these pseudoscalars or axion like particles (ALPs) on Cosmic Microwave Background Radiation (CMBR) and constrain the product of mixing strength $g_ϕ$ times background magnetic field $B$. The background magnetic field has been assumed to be primordial and we assume large scale correlations with the correlation length of 1Mpc. We use WMAP seven year foreground reduced polarization and temperature data to constrain pseudoscalar-photon mixing parameter. We look for different mass limits of the pseudoscalars and find $g_ϕB\le 1.6\times10^{-13} GeV^{-1} nG$ with ALPs of mass $10^{-10} eV$ and $g_ϕB\le3.4\times10^{-15} GeV^{-1} nG$ for ultra light ALPs of mass $10^{-15} eV$.
Loops, Polytopes and Splines
Creators: name: Paulos, Miguel F.
Publisher: name: arXiv
Year: 2012
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: We uncover an unexpected connection between the physics of loop integrals and the mathematics of spline functions. One loop integrands are Laplace transforms of splines. This clarifies the geometry of the associated loop integrals, since a $n$-node spline has support on an $n$-vertex polyhedral cone. One-loop integrals are integrals of splines on a hyperbolic slice of the cone, yielding polytopes in $AdS$ space. Splines thus give a geometrical counterpart to the rational function identities at the level of the integrand. Spline technology also allows for a clear, simple, algebraic decomposition of higher point loop integrals in lower dimensional kinematics in terms of lower point integrals - e.g. an hexagon integral in 2d kinematics can be written as a sum of scalar boxes. Higher loops can also be understood directly in terms of splines - they map onto spline convolutions, leading to an intriguing representation in terms of hyperbolic simplices integrated over other hyperbolic simplices. We finish with speculations on the interpretation of one-loop integrals as partition functions, inspired by the use of splines in counting points in polytopes.
description: 34 pages. Typos corrected, added references
Totentafel Ludwig Rohde
Creators: name: Müller, Wolfgang John
Publisher: name: Kunstchronik. Monatsschrift für Kunstwissenschaft, Museumswesen und Denkmalpflege
Year: 2019

description: Kunstchronik. Monatsschrift für Kunstwissenschaft, Museumswesen und Denkmalpflege, Bd. 3 Nr. 10 (1950): Kunstchronik. Monatsschrift für Kunstwissenschaft, Museumswesen und Denkmalpflege
Zuschrift an die Redaktion
Creators: name: Redaktion, Die
Publisher: name: Kunstchronik. Monatsschrift für Kunstwissenschaft, Museumswesen und Denkmalpflege
Year: 2019

description: Kunstchronik. Monatsschrift für Kunstwissenschaft, Museumswesen und Denkmalpflege, Bd. 3 Nr. 10 (1950): Kunstchronik. Monatsschrift für Kunstwissenschaft, Museumswesen und Denkmalpflege
Ausstellungskalender
Creators: name: Redaktion, Die
Publisher: name: Kunstchronik. Monatsschrift für Kunstwissenschaft, Museumswesen und Denkmalpflege
Year: 2019

description: Kunstchronik. Monatsschrift für Kunstwissenschaft, Museumswesen und Denkmalpflege, Bd. 3 Nr. 10 (1950): Kunstchronik. Monatsschrift für Kunstwissenschaft, Museumswesen und Denkmalpflege
Topological K-theory of complex noncommutative spaces
Creators: name: Blanc, Anthony
Publisher: name: arXiv
Year: 2012
Subjects: subject: K-Theory and Homology (math.KT)
subject: Algebraic Geometry (math.AG)
subject: FOS: Mathematics

description: The purpose of this work is to give a definition of a topological K-theory for dg-categories over C and to prove that the Chern character map from algebraic K-theory to periodic cyclic homology descends naturally to this new invariant. This topological Chern map provides a natural candidate for the existence of a rational structure on the periodic cylic homology of a smooth proper dg-algebra, within the theory of noncommutative Hodge structures. The definition of topological K-theory consists in two steps : taking the topological realization of algebraic K-theory, and inverting the Bott element. The topological realization is the left Kan extension of the functor "space of complex points" to all simplicial presheaves over complex algebraic varieties. Our first main result states that the topological K-theory of the unit dg-category is the spectrum BU. For this we are led to prove a homotopical generalization of Deligne's cohomological proper descent, using Lurie's proper descent. The fact that the Chern character descends to topological K-theory is established by using Kassel's Künneth formula for periodic cyclic homology and once again the proper descent result. In the case of a dg-category of perfect complexes on a smooth scheme, we show that we recover the usual topological K-theory. Finally in the case of a finite dimensional associative algebra, we show that the lattice conjecture holds. This gives a formula for the periodic homology groups of a finite dimensional algebra in terms of the stack of projective modules of finite type.
description: 72 pages. To appear in Compositio Mathematica. Corrected the assumptions in the comparison isomorphism for schemes (now stated for singular schemes, proposition 4.32) as well as some technical assumptions in proposition 3.24
Galactic spiral patterns and dynamo action I: A new twist on magnetic arms
Creators: name: Chamandy, Luke
name: Subramanian, Kandaswamy
name: Shukurov, Anvar
Publisher: name: arXiv
Year: 2012
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: We generalise the theory of mean-field galactic dynamos by allowing for temporal non-locality in the mean electromotive force (emf). This arises in random flows due to a finite response time of the mean emf to changes in the mean magnetic field, and leads to the telegraph equation for the mean field. The resulting dynamo model also includes the nonlinear dynamo effects arising from magnetic helicity balance. Within this framework, coherent large-scale magnetic spiral arms superimposed on the dominant axially symmetric magnetic structure are considered. A non-axisymmetric forcing of the mean-field dynamo by a spiral pattern (either stationary or transient) is invoked, with the aim of explaining the phenomenon of magnetic arms. For a stationary dynamo forcing by a rigidly rotating material spiral, we find corotating non-axisymmetric magnetic modes enslaved to the axisymmetric modes and strongly peaked around the corotation radius. For a forcing by transient material arms wound up by the galactic differential rotation, the magnetic spiral is able to adjust to the winding so that it resembles the material spiral at all times. There are profound effects associated with the temporal non-locality, i.e. finite `dynamo relaxation time'. For the case of a rigidly rotating spiral, a finite relaxation time causes each magnetic arm to mostly lag the corresponding material arm with respect to the rotation. For a transient material spiral that winds up, the finite dynamo relaxation time leads to a large, negative (in the sense of the rotation) phase shift between the magnetic and material arms, similar to that observed in NGC 6946 and other galaxies. We confirm that sufficiently strong random seed fields can lead to global reversals of the regular field along the radius whose long-term survival depends on specific features of a given galaxy.
description: Version accepted for publication in MNRAS. 23 pages, 19 figures
Ausstellungskalender
Creators: name: Redaktion, Die
Publisher: name: Kunstchronik. Monatsschrift für Kunstwissenschaft, Museumswesen und Denkmalpflege
Year: 2019

description: Kunstchronik. Monatsschrift für Kunstwissenschaft, Museumswesen und Denkmalpflege, Bd. 3 Nr. 12 (1950): Kunstchronik. Monatsschrift für Kunstwissenschaft, Museumswesen und Denkmalpflege
The international working travel experiences of Australian DIY musicians
Creators: name: Mckeering, John
Publisher: name: CQUniversity
Year: 2023
Subjects: classificationCode: 360499
subject: Performing arts not elsewhere classified

description: The international working travel experiences of Australian DIY musicians This research explores the travel experiences of Australian DIY (Do-It-Yourself) working musicians. It was undertaken because there was a lack of existing academic literature on this topic. The research question is: For the benefit of Australian DIY musicians who aspire to travel and work internationally, what can be learned from interviewing those who have gone before? Fifteen working musicians who have travelled internationally were interviewed to find out what kind of obstacles and advantages they encountered while touring. There were eight males and seven females with experience as performers, ranging in age between 24 and 54 years. Several of the respondents have been awarded or nominated by the Australian Recording Industry Association (ARIA). Several had ARIA chart success. Semi-structured interviews were conducted by the researcher, himself an entertainer. The data was then analysed using Grounded Theory methodology. Most of the performers interviewed claim to have received little or no sustainable financial viability from international touring experiences. A predominant emergent theme regarding the motivation for touring is “passion” for performing. Positive factors noted included life experience, exploring different markets, meeting new industry contacts, bonding experiences for touring party members, and being a worthwhile working vacation for reasons other than making money. Major drawbacks included expenses borne by the individual that were unclaimable as business expenses for income tax purposes in Australia; being unable to maintain full-time, paying employment while touring; and the stresses of long-distance travel, constant performing and separation from family, leading to mental health issues. Key conclusions drawn were that changes could be made to improve experiences for Australian musicians travelling abroad. Suggestions included provision of increased assistance from government agencies; establishment of better networking opportunities for musicians to exchange ideas; and negotiation of excess baggage concessions for internationally travelling musicians. This thesis revealed themes that deserved further specific and in-depth research, including how the mental health risks for travelling musicians and their support crews could be better managed; what were the exotic qualities that Australian musicians appreciated in particular overseas regions; and what cultural attitudes towards musicians in various countries influenced those regulatory environments? An appendix to the thesis reviews the visa regulations pertaining to travelling working musicians in many international jurisdictions.
Multi-ion conduction bands in a simple model of calcium ion channels
Creators: name: Kaufman, I.
name: Luchinsky, D. G.
name: Tindjong, R.
name: McClintock, P. V. E.
name: Eisenberg, R. S.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Biological Physics (physics.bio-ph)
subject: Subcellular Processes (q-bio.SC)
subject: FOS: Physical sciences
subject: FOS: Biological sciences

description: We report self-consistent Brownian dynamics simulations of a simple electrostatic model of the selectivity filters (SF) of calcium ion channels. They reveal regular structure in the conductance and selectivity as functions of the fixed negative charge Qf at the SF. This structure consists of distinct regions of high conductance (conduction bands) M0, M1, M2 separated by regions of zero-conductance (stop-bands). Two of these conduction bands, M1 and M2, demonstrate high calcium selectivity and prominent anomalous mole fraction effects and can be identified with the L-type and RyR calcium channels.
description: 14 pages, 9 figures, 38 references
Sustainable use of MOODLE as a learning management system within a school context
Creators: name: Wilson, GP
Publisher: name: CQUniversity
Year: 2023
Subjects: classificationCode: 390405
subject: Educational technology and computing

description: Education Queensland (EQ) schools are increasingly using Information Communication Technologies (ICTs) for student learning and other school functions. EQ is also incorporating ICT applications to streamline school management practices. This research examines the implementation of a Learning Management System (LMS), MOODLE (Modular Object Oriented Dynamic Learning Environment) at a large semi-rural high school. The use of MOODLE is in response to EQ key ICT objectives outlined under the State Government’s 2007 Smart State policy. The research used an exploratory case study methodology to examine the implementation of MOODLE at the school. Sustainability literature was used to examine the key measures to identify changes in ICT practices at the school by students, teachers and other school staff. Findings from the research revealed that students quickly incorporate LMS features for learning and other purposes. Students’ familiarity with technology influenced the use of new applications and wider application use across the system. Also it was found that teaching practices changed in response to implementing a localised LMS, MOODLE, which in turn resulted in an increased use of the site. The literature identified that a sustainable implementation of ICT practices requires five essential markers to be considered. Identified through this research were the technical considerations in provisioning LMS as well as staff considerations that facilitated enabling use of the LMS. It was concluded from the findings that localised control is a critical component to assure continued growth and sustainability of the LMS. Results from this research are being used to develop a framework for EQ schools to develop their own localised ICT practice within the school community.
Eigenvalues of Hermitian matrices and equivariant cohomology of Grassmannians
Creators: name: Anderson, David
name: Richmond, Edward
name: Yong, Alexander
Publisher: name: arXiv
Year: 2012
Subjects: subject: Combinatorics (math.CO)
subject: FOS: Mathematics

description: The saturation theorem of [Knutson-Tao '99] concerns the nonvanishing of Littlewood-Richardson coefficients. In combination with work of [Klyachko '98], it implies [Horn '62]'s conjecture about eigenvalues of sums of Hermitian matrices. This eigenvalue problem has a generalization [Friedland '00] to majorized sums of Hermitian matrices. We further illustrate the common features between these two eigenvalue problems and their connection to Schubert calculus of Grassmannians. Our main result gives a Schubert calculus interpretation of Friedland's problem, via equivariant cohomology of Grassmannians. In particular, we prove a saturation theorem for this setting. Our arguments employ the aformentioned work together with [Thomas-Yong '12].
description: 14 pages, to appear in Compositio Math
paperChain D2.1 - "Baseline Report: Pulp and Paper Industry waste streams valorisation potential"
Creators: name: Nordlander, Thomas
Publisher: name: Zenodo
Year: 2017
Subjects: PPI waste streams
Waste stream quantification
European PPI
Valorisation potential

description: The valorisation potential of waste streams have been screened in five different pulp and paper industries in Europe. The result shows that every single contributor has to at least some extent already come valorisation today of a waste stream, and it also shows that there is a potential to expand the waste stream valorisation. In this industrial sector the relative size of the waste stream to the main process can be quite small, but on annual basis most waste streams still are in the range of 1.000-50.000 tonnes.
Parents’ experiences during a child’s transition to school
Creators: name: Webb, Grant
Publisher: name: CQUniversity
Year: 2023
Subjects: classificationCode: 390301
subject: Continuing and community education

description: While existing literature places a strong focus on understanding and supporting children as they make the transition to formal schooling, little focus has been placed on the experiences of parents as they transition to being the parent of a school child. Childhood transitions and the subsequent transitions for parents and families are framed as highly social, contextualised and political and can have a lasting impact on the child and her/his family. This research aimed to describe and interpret eight parents’ stories from four families. The study investigated the perceptions, expectations and experiences as well as interpreting the continuities, changes and adjustments made as their child transitioned to the Preparatory (Prep) Year of formal schooling in a regional area of Queensland, Australia. The study used the Family Development Transition Approach (Griebel & Niesel, 2013) and the Bioecological Model of Human Development (Bronfenbrenner & Morris, 2006). These conceptual frameworks were used to describe and interpret the ways in which parents’ perceptions, expectations, adjustments and experiences may have been shaped by contexts and systems over time. This was a qualitative research study situated in constructivist epistemology. The study utilised collective case studies combined with narrative inquiry. The key data gathering strategy was semi-structured interviews using principles of the biographic-narrative method. Participants were also asked to complete an initial demographic survey and were encouraged to keep a written or digital journal to support their recall in the interviews. Data was analysed by sorting, retrieving and rearranging it into larger themes and categories. Subsequently, a process was undertaken to identify relationships and build abstractions across cases (cross-case analysis) and themes (meta-themes). The research identified that there were both similarities and differences in the experiences of parents and these could be interpreted using the Family Development Transition Approach
Die Neueinrichtung des Kgl. Münz- und Medaillenkabinetts im Staatlichen Historischen Museum, Stockholm
Creators: name: Schwabacher, Willy
Publisher: name: Kunstchronik. Monatsschrift für Kunstwissenschaft, Museumswesen und Denkmalpflege
Year: 2019

description: Kunstchronik. Monatsschrift für Kunstwissenschaft, Museumswesen und Denkmalpflege, Bd. 3 Nr. 3 (1950): Kunstchronik. Monatsschrift für Kunstwissenschaft, Museumswesen und Denkmalpflege
Ausstellungskalender
Creators: name: Redaktion, Die
Publisher: name: Kunstchronik. Monatsschrift für Kunstwissenschaft, Museumswesen und Denkmalpflege
Year: 2019

description: Kunstchronik. Monatsschrift für Kunstwissenschaft, Museumswesen und Denkmalpflege, Bd. 3 Nr. 3 (1950): Kunstchronik. Monatsschrift für Kunstwissenschaft, Museumswesen und Denkmalpflege
Museumspflege im Lande Württemberg-Hohenzollern
Creators: name: Hoffmann, Herbert
Publisher: name: Kunstchronik. Monatsschrift für Kunstwissenschaft, Museumswesen und Denkmalpflege
Year: 2019

description: Kunstchronik. Monatsschrift für Kunstwissenschaft, Museumswesen und Denkmalpflege, Bd. 3 Nr. 4 (1950): Kunstchronik. Monatsschrift für Kunstwissenschaft, Museumswesen und Denkmalpflege
Totentafel Alfred Seyler †
Creators: name: Baumeister, Engelbert
Publisher: name: Kunstchronik. Monatsschrift für Kunstwissenschaft, Museumswesen und Denkmalpflege
Year: 2019

description: Kunstchronik. Monatsschrift für Kunstwissenschaft, Museumswesen und Denkmalpflege, Bd. 3 Nr. 4 (1950): Kunstchronik. Monatsschrift für Kunstwissenschaft, Museumswesen und Denkmalpflege
What is InChI? A user's perspective on identifiers and representations
Creators: name: Landrum, Greg
Publisher: name: Zenodo
Year: 2022
Subjects: Webinar, FAIR, Cheminformatics, Chemical Data

description: This is a flash presentation highlighting working with InChI. It was presented at the “The IUPAC WorldFAIR Chemistry Webinar “What is a chemical? – User Perspectives on Digital Machine-Readable Depictions”. The event was held on Dec 08, 2022, 11-12:30 pm EST. The recording of the full webinar will be available soon. *WorldFAIR “Global cooperation on FAIR data policy and practice” is funded by the EC HORIZON-WIDERA-2021-ERA-01-41 Coordination and Support Action under Grant Agreement No. 101058393.
Convex hierarchical testing of interactions
Creators: name: Bien, Jacob
name: Simon, Noah
name: Tibshirani, Robert
Publisher: name: arXiv
Year: 2012
Subjects: subject: Methodology (stat.ME)
subject: FOS: Computer and information sciences

description: We consider the testing of all pairwise interactions in a two-class problem with many features. We devise a hierarchical testing framework that considers an interaction only when one or more of its constituent features has a nonzero main effect. The test is based on a convex optimization framework that seamlessly considers main effects and interactions together. We show - both in simulation and on a genomic data set from the SAPPHIRe study - a potential gain in power and interpretability over a standard (nonhierarchical) interaction test.
description: Published at http://dx.doi.org/10.1214/14-AOAS758 in the Annals of Applied Statistics (http://www.imstat.org/aoas/) by the Institute of Mathematical Statistics (http://www.imstat.org)
Cosmology of hybrid metric-Palatini f(X)-gravity
Creators: name: Capozziello, Salvatore
name: Harko, Tiberiu
name: Koivisto, Tomi S.
name: Lobo, Francisco S. N.
name: Olmo, Gonzalo J.
Publisher: name: arXiv
Year: 2012
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: A new class of modified theories of gravity, consisting of the superposition of the metric Einstein-Hilbert Lagrangian with an $f(\cal R)$ term constructed à la Palatini was proposed recently. The dynamically equivalent scalar-tensor representation of the model was also formulated, and it was shown that even if the scalar field is very light, the theory passes the Solar System observational constraints. Therefore the model predicts the existence of a long-range scalar field, modifying the cosmological and galactic dynamics. An explicit model that passes the local tests and leads to cosmic acceleration was also obtained. In the present work, it is shown that the theory can be also formulated in terms of the quantity $X\equiv κ^2 T+R$, where T and R are the traces of the stress-energy and Ricci tensors, respectively. The variable X represents the deviation with respect to the field equation trace of general relativity. The cosmological applications of this hybrid metric-Palatini gravitational theory are also explored, and cosmological solutions coming from the scalar-tensor representation of f(X)-gravity are presented. Criteria to obtain cosmic acceleration are discussed and the field equations are analyzed as a dynamical system. Several classes of dynamical cosmological solutions, depending on the functional form of the effective scalar field potential, describing both accelerating and decelerating Universes are explicitly obtained. Furthermore, the cosmological perturbation equations are derived and applied to uncover the nature of the propagating scalar degree of freedom and the signatures these models predict in the large-scale structure.
description: 17 pages. V2: 18 pages; minor revision and references added; to appear in JCAP
Exploration of job relocation in a military context
Creators: name: Westlake, R
Publisher: name: CQUniversity
Year: 2017
Subjects: classificationCode: 440804
subject: Defence studies

description: "Australian Defence Force (ADF) staff members experience a job relocation every 3 to 5 years. This research explores the perceptions of a group of ADF staff regarding job relocation. Grounded Theory methodology was used to examine the respondents’ perceptions of moving and settling into a new job. A schema called MOVING WORK was developed as a way to illustrate the respondents’ experience and to provide an insight into the widespread workplace practice of job relocation in the ADF. The results revealed that a characteristic of the ADF military context is for ADF staff to support each other at the workplace. As such, it was established that ADF staff function as a ‘community of practice’. Also, definitions of legitimacy and peripherality were established with reference to how the respondents act. From the analysis of the data it was demonstrated that the respondents’ actions could be examined and explained using the theoretical framework of Situated Learning. The outcomes of this research can be used by researchers and ADF senior staff as a means to examine, or manage, the ADF workplace practice of job relocation"--Abstract.
Techniques of risk management in the Central Queensland mining manufacturing supply chains
Creators: name: Wu, Linhua
Publisher: name: CQUniversity
Year: 2023
Subjects: classificationCode: 350903
subject: Logistics
classificationCode: 350909
subject: Supply chains

description: The focus of this thesis is to examine the use of techniques of risk management employed by companies in Central Queensland’s mining manufacturing supply chain. This is a rapidly growing industry sector supporting one of Queensland’s major export industries. The specific objective of this research is to examine how companies in the supply chain employ techniques to identify, assess, and manage supply risks. The research methodology entailed the use of in-depth interviews of companies in Rockhampton, Mackay and Yeppoon in Central Queensland. This method has been selected because of limited empirical data relating to supply chain issues in this field. Quantitative questions have been incorporated into an interview questionnaire to gain more information in the limited time available. A total of 21 interviews were conducted, and methods of qualitative description and descriptive statistics have been used to analyse the subsequent data. The results show that Supply Unavailable, Supply Price Increase, and Unpredictable Lead Times are three main sources of supply risks perceived by respondents. For risk identification and assessment, specific techniques have been adopted widely, especially Communication with Suppliers. For risk mitigation, Alternative Suppliers when Supply Interrupted is perceived as the most important technique to reduce the impact of risk occurrence, while Close Working Relationship with Suppliers and Localised Sourcing are broadly used as the techniques to reduce the likelihood of risk occurrence. However, traditional buffer-oriented techniques, such as Multiple Sourcing, and Increased Stockpiling and Buffer Inventory, are not as popular in this industry as would be expected from published literature. -- Abstract
Das Landesmuseum Münster nach dem Kriege
Creators: name: Pieper, Paul
Publisher: name: Kunstchronik. Monatsschrift für Kunstwissenschaft, Museumswesen und Denkmalpflege
Year: 2019

description: Kunstchronik. Monatsschrift für Kunstwissenschaft, Museumswesen und Denkmalpflege, Bd. 3 Nr. 5 (1950): Kunstchronik. Monatsschrift für Kunstwissenschaft, Museumswesen und Denkmalpflege
Exact minimax estimation of the predictive density in sparse Gaussian models
Creators: name: Mukherjee, Gourab
name: Johnstone, Iain M.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Statistics Theory (math.ST)
subject: FOS: Mathematics

description: We consider estimating the predictive density under Kullback-Leibler loss in an $\ell_0$ sparse Gaussian sequence model. Explicit expressions of the first order minimax risk along with its exact constant, asymptotically least favorable priors and optimal predictive density estimates are derived. Compared to the sparse recovery results involving point estimation of the normal mean, new decision theoretic phenomena are seen. Suboptimal performance of the class of plug-in density estimates reflects the predictive nature of the problem and optimal strategies need diversification of the future risk. We find that minimax optimal strategies lie outside the Gaussian family but can be constructed with threshold predictive density estimates. Novel minimax techniques involving simultaneous calibration of the sparsity adjustment and the risk diversification mechanisms are used to design optimal predictive density estimates.
description: Published at http://dx.doi.org/10.1214/14-AOS1251 in the Annals of Statistics (http://www.imstat.org/aos/) by the Institute of Mathematical Statistics (http://www.imstat.org)
Development of a dry stack masonry system for effective resistance to out-of-plane bending
Creators: name: Ferozkhan, Mohamed
Publisher: name: CQUniversity
Year: 2023
Subjects: classificationCode: 400510
subject: Structural engineering

description: "Dry-stack masonry (DSM) systems are developed in response to rising labour costs. Generally DSM is constructed using concrete blocks without mortar joints. These systems use different methods of achieving structural integrity. Grout and reinforcement are used in some systems and post-tensioning (unbonded tendons) are used in some other systems to achieve bonding through various interlocking mechanisms. This thesis describes the development of an Australian patent pending DSM walling system that uses special featured interlocking blocks. Surface redering using a special fibre reinforced cement composite (FRCC) is used to encapsulate the interlocking blocks on all six faces. The aim of this research is to determine the behaviour of this system under out-of-plane bending..." -- abstract.
paperChain D2.3 - "Raw materials supply scenario"
Creators: name: Nordlander, Thomas
name: Salei, Mathieu
name: Fifer, Karmen
name: Ferreira, Victor
name: Simoes, Fabio
name: Paiva, Helena
name: Oleaga, Asier
name: Martin, Soledad
name: Cepriá, Juan José
name: Nordlander, Thomas
Publisher: name: Zenodo
Year: 2018
Subjects: Raw materials
Pulp and paper
Recycling

description: The European pulp and paper sector accounts for a total paper and board production of 91 million tonnes, which represents the 22.2 % of the global production (CEPI, 2017). The pulp production reached 36,5 million tonnes and the paper used for recycling 47,6 million tonnes. The sector showed a continuous concentration, but means of a reduction of the number of companies, mills and paper machines, although this has not implied a reduction of the production and turnover, which remained stable or slightly higher. This report provides an overview on the numbers of the waste production in Europe by the pulp and paper industry, the regional distribution, type of waste and some general characteristics of the type of waste in a country-by-country basis.
Ordering dynamics of the multi-state voter model
Creators: name: Starnini, Michele
name: Baronchelli, Andrea
name: Pastor-Satorras, Romualdo
Publisher: name: arXiv
Year: 2012
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Social and Information Networks (cs.SI)
subject: Physics and Society (physics.soc-ph)
subject: FOS: Physical sciences
subject: FOS: Computer and information sciences

description: The voter model is a paradigm of ordering dynamics. At each time step, a random node is selected and copies the state of one of its neighbors. Traditionally, this state has been considered as a binary variable. Here, we relax this assumption and address the case in which the number of states is a parameter that can assume any value, from 2 to \infty, in the thermodynamic limit. We derive mean-field analytical expressions for the exit probability and the consensus time for the case of an arbitrary number of states. We then perform a numerical study of the model in low dimensional lattices, comparing the case of multiple states with the usual binary voter model. Our work generalizes the well-known results for the voter model, and sheds light on the role of the so far almost neglected parameter accounting for the number of states.
Converts to the cause: Community support and the establishment of the Mackay CQU campus 1987-1997
Creators: name: Amiet, ME
Publisher: name: CQUniversity
Year: 2017
Subjects: classificationCode: 390303
subject: Higher education

description: Introduction: The Mackay campus of Central Queensland University (CQU) celebrated its tenth birthday on the 19th April, 1997. The focus of this occasion was a dinner attended by members of the Mackay Advisory Committee who had been involved in the establishment of the campus.
The Hardness of the Functional Orientation 2-Color Problem
Creators: name: Bøg, Søren
name: Stöckel, Morten
name: Vildhøj, Hjalte Wedel
Publisher: name: arXiv
Year: 2012
Subjects: subject: Computational Complexity (cs.CC)
subject: Discrete Mathematics (cs.DM)
subject: Combinatorics (math.CO)
subject: FOS: Computer and information sciences
subject: FOS: Mathematics

description: We consider the Functional Orientation 2-Color problem, which was introduced by Valiant in his seminal paper on holographic algorithms [SIAM J. Comput., 37(5), 2008]. For this decision problem, Valiant gave a polynomial time holographic algorithm for planar graphs of maximum degree 3, and showed that the problem is NP-complete for planar graphs of maximum degree 10. A recent result on defective graph coloring by Corrêa et al. [Australas. J. Combin., 43, 2009] implies that the problem is already hard for planar graphs of maximum degree 8. Together, these results leave open the hardness question for graphs of maximum degree between 4 and 7. We close this gap by showing that the answer is always yes for arbitrary graphs of maximum degree 5, and that the problem is NP-complete for planar graphs of maximum degree 6. Moreover, for graphs of maximum degree 5, we note that a linear time algorithm for finding a solution exists.
Incorporating an on-line exchange student language program within second language curricula: A case study of Taiwanese primary school students working with Australian students
Creators: name: Huang, Meng-yi (Monica)
Publisher: name: CQUniversity
Year: 2021
Subjects: classificationCode: 390302
subject: Early childhood education
classificationCode: 470306
subject: English as a second language
classificationCode: 470399
subject: Language studies not elsewhere classified

description: The planning and promotion of a foreign or second language education in the primary school seems a worldwide trend. English and Chinese, as global communication media, are particularly emphasised recently. In Taiwan, learning English is regarded as a Foreign Language study (hereafter referred to as ‘EFL’), as it is far different from learning English as a Second Language (hereafter referred to as ‘ESL’), or as a First Language (hereafter referred to as ‘L1’). In the learning environment of L1 or ESL, it is necessary to use English in daily life, such as, going to school, going shopping and even watching television. However, in EFL learning environments, learners have limited opportunity to practice English particularly speaking and listening in authentic contexts with other speakers of compatible age and interest. This foreign language learning situation also occurs for Australian students of Mandarin. Therefore, this research project assumed that Information and Communication Technology (hereafter referred to as ‘ICT’) can enhance opportunity for structured practice and development of spoken language, both in and out of the classroom for second language (hereafter referred to as ‘L2’) students, is a potentially powerful application and warrants trial and evaluation.
Studying delay effects on complex dynamical networks
Creators: name: Ding, Ke
Publisher: name: CQUniversity
Year: 2023
Subjects: classificationCode: 490105
subject: Dynamical systems in applications

description: "Complex networks have attracted increasing attention form many fields due to their theoretical importance and practical applications. Because there exist the limitations and constraints for the speeds of transmission, a signal traveling from one node to the other node in a complex network usually suffers a time delay. This thesis is to introduce some complex dynamical network models with coupling delays and to study time delay effects on complex dynamical networks"--Abstract.
Options and evaluation for the refurbishment of vibration damaged swer lines in Capricornia Electricity
Creators: name: Effeney, T
Publisher: name: CQUniversity
Year: 2017
Subjects: classificationCode: 400899
subject: Electrical engineering not elsewhere classified

description: Capricornia Electricity has an extensive Single Wire Earth Return (SWER) rural distribution network. As this SWER network ages, service problems resulting from excessive uncontrolled aeolian vibration are becoming apparent. In some SWER schemes the failure of hand ties and associated hardware is widespread. In the worst affected areas, there is evidence of damage to the aluminium wires in the ACSR conductor. As the current accepted practice is to reconductor these damaged lines, Capricornia Electricity is faced with major refurbishment costs. This thesis describes the investigative work undertaken to address the question of whether it is possible to reliably extend the service life of the vibration damaged lines without the need for reconductoring. In addition, the suitability of high tension line designs utilising small diameter conductors in terrain conducive to aeolian vibration is evaluated. While aeolian vibration is a well recognised and researched problem on transmission lines, relatively little work has been carried out on highly tensioned small diameter conductors in the range 5-lOmm. Furthermore, no specific work which addresses vibration problems in composite outer layer ACSR conductors could be located. In this research project, the current knowledge on conductor vibration and fatigue in transmission line conductors was reviewed, and the applicability of this knowledge to small diameter conductors was examined. It was established that field data on vibration modes and duration needed to be collected to allow for a satisfactory analysis of the vibration problem. Subsequent investigative work included the collection and analysis of a large volume of field data on the nature of the vibration problem, the establishment of the residual life of damaged conductors through laboratory testing, as well as experimental work to ascertain the effectiveness of various damping devices. Based on the available data, it was concluded that the application of appropriate damping systems would ensure the mechanical integrity of lines even where fatigue damage has occurred.
Factors affecting user decisions to download and install software that may contain spyware
Creators: name: Howah, Kenneth
Publisher: name: CQUniversity
Year: 2017
Subjects: classificationCode: 460407
subject: System and network security
classificationCode: 460908
subject: Information systems organisation and management

description: "This exploratory research project is aimed at identifying factors influencing user decisions that cause spyware to be introduced into the computer through free software downloaded and installed from the Internet ... The research will contribute to a more comprehensive understanding of what motivates user behaviour as it relates to the proliferation of spyware"--Abstract.