cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Radiation-magnetohydrodynamic simulations of the photoionisation of magnetised globules
Creators: name: Henney, William J.
name: Arthur, S. Jane
name: De Colle, Fabio
name: Mellema, Garrelt
Publisher: name: arXiv
Year: 2008
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We present the first three-dimensional radiation-magnetohydrodynamic simulations of the photoionisation of a dense, magnetised molecular globule by an external source of ultraviolet radiation. We find that, for the case of a strong ionising field, significant deviations from the non-magnetic evolution are seen when the initial magnetic field threading the globule has an associated magnetic pressure that is greater than one hundred times the gas pressure. In such a strong-field case, the photoevaporating globule will adopt a flattened or "curled up" shape, depending on the initial field orientation, and magnetic confinement of the ionised photoevaporation flow can lead to recombination and subsequent fragmentation during advanced stages of the globule evolution. We find suggestive evidence that such magnetic effects may be important in the formation of bright, bar-like emission features in H II regions. We include simple but realistic fits to heating and cooling rates in the neutral and molecular gas in the vicinity of a high-mass star cluster and show that the frequently used isothermal approximation can lead to an overestimate of the importance of gravitational instability in the radiatively imploded globule. For globules within 2 parsecs of a high-mass star cluster, we find that heating by stellar x rays prevents the molecular gas from cooling below 50 K.
description: 19 pages, 16 figures, many in full color. Accepted by MNRAS. Updated to reflect the accepted version. Significantly expanded and improved with respect to the first version. Well worth downloading again
CP Violating Asymmetry in Stop Decay into Bottom and Chargino
Creators: name: Frank, Sebastian M. R.
name: Eberl, Helmut
Publisher: name: arXiv
Year: 2009
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: In the MSSM with complex parameters, loop corrections to the decay of a stop into a bottom quark and a chargino can lead to a CP violating decay rate asymmetry. We calculate this asymmetry at full one-loop level and perform a detailed numerical study, analyzing the dependence on the parameters and complex phases involved. In addition, we take the Yukawa couplings of the top and bottom quark running. We account for the constraints on the parameters coming from several experimental limits. Asymmetries of several percent are obtained. We also comment on the feasibility of measuring this asymmetry at the LHC.
description: Contributed talk given by Sebastian Frank in June 2009 at SUSY09 - 17th International Conference on Supersymmetry and the Unification of Fundamental Interactions, Northeastern University, Boston, USA. To appear in the AIP conference proceedings, 4 pages, 7 figures (fixed links in references)
Versatile transporter apparatus for experiments with optically trapped Bose-Einstein condensates
Creators: name: Pertot, Daniel
name: Greif, Daniel
name: Albert, Stephan
name: Gadway, Bryce
name: Schneble, Dominik
Publisher: name: arXiv
Year: 2009
Subjects: subject: Quantum Gases (cond-mat.quant-gas)
subject: FOS: Physical sciences

description: We describe a versatile and simple scheme for producing magnetically and optically-trapped Rb-87 Bose-Einstein condensates, based on a moving-coil transporter apparatus. The apparatus features a TOP trap that incorporates the movable quadrupole coils used for magneto-optical trapping and long-distance magnetic transport of atomic clouds. As a stand-alone device, this trap allows for the stable production of condensates containing up to one million atoms. In combination with an optical dipole trap, the TOP trap acts as a funnel for efficient loading, after which the quadrupole coils can be retracted, thereby maximizing optical access. The robustness of this scheme is illustrated by realizing the superfluid-to-Mott insulator transition in a three-dimensional optical lattice.
One Pot Unexpected Isocyanide-based Three-component Synthesis of Pyrrole-3-carboxamides Containing Ether Groups
Creators: name: Yahyazadehfar, Mahdieh
name: Sheikhhosseini, Enayatollah
name: Ahmadi, Sayed Ali
name: Ghazanfari, Dadkhoda
Publisher: name: Taylor & Francis
Year: 2021
Subjects: subject: Medicine
subject: Pharmacology
subject: Biotechnology
subject: Ecology
subject: FOS: Biological sciences
subject: Immunology
subject: FOS: Clinical medicine
subject: Science Policy

description: One Pot Unexpected Isocyanide-based Three-component Synthesis of Pyrrole-3-carboxamides Containing Ether Groups
Modification of the classical nucleation theory based on molecular simulation data for surface tension, critical nucleus size, and nucleation rate
Creators: name: Horsch, Martin
name: Vrabec, Jadran
name: Hasse, Hans
Publisher: name: arXiv
Year: 2009
Subjects: subject: Chemical Physics (physics.chem-ph)
subject: Atmospheric and Oceanic Physics (physics.ao-ph)
subject: FOS: Physical sciences

description: Nucleation in supersaturated vapor is investigated with two series of molecular dynamics simulations in the canonical ensemble. The applied methods are: (a) analysis of critical nuclei at moderate supersaturations by simulating equilibria of single droplets with surrounding vapors in small systems; (b) simulation of homogeneous nucleation during condensation with large systems containing 10^5 to 10^6 particles for calculating the nucleation rate of vapors at high supersaturations. For the Lennard-Jones fluid, truncated and shifted at 2.5 times the size parameter, it is shown that the classical nucleation theory underestimates both the nucleation rate and the size of the critical nucleus. A surface property corrected modification of this theory is proposed to consistently cover data on the surface tension of the curved interface, the critical nucleus size, and the nucleation rate.
Quivers with relations arising from Koszul algebras of $\mathfrak g$-invariants
Creators: name: Greenstein, Jacob
Publisher: name: arXiv
Year: 2008
Subjects: subject: Representation Theory (math.RT)
subject: Rings and Algebras (math.RA)
subject: FOS: Mathematics
subject: 17B10, 16W50

description: Let $\mathfrak g$ be a complex simple Lie algebra and let $Ψ$ be an extremal set of positive roots. One associates with $Ψ$ an infinite dimensional Koszul algebra $\bold S_Ψ^{\lie g}$ which is a graded subalgebra of the locally finite part of $((\bold V)^{op}\tensor S(\lie g))^{\lie g}$, where $\bold V$ is the direct sum of all simple finite dimensional $\lie g$-modules. We describe the structure of the algebra $\bold S_Ψ^{\lie g}$ explicitly in terms of an infinite quiver with relations for $\lie g$ of types $A$ and $C$. We also describe several infinite families of quivers and finite dimensional algebras arising from this construction.
description: 49 pages, AMSLaTeX+amsrefs
How instantons could survive the phase transition
Creators: name: Bruckmann, Falk
Publisher: name: arXiv
Year: 2009
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Lattice (hep-lat)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: Instantons at finite temperature consist of dyons, with their masses depending on the asymptotic Polyakov loop. It is shown that the suppression of heavy dyons can explain qualitatively the behavior of the periodic and antiperiodic chiral condensate and the topological susceptibility above the phase transition.
description: poster at Confinement8, Mainz, Germany, September 1 - 6, 2008; 4 pages
Magnetic characteristics of Broken Hill type deposits and their host provinces
Creators: name: Kerr, TL
Publisher: name: University Of Tasmania
Year: 2023

description: In technical geological publications it has been demonstrated that Broken Hill Type deposits and their host provinces are characterised by similarities in their geological settings and ore deposit mineralogy at both local and regional scales. The purpose of this thesis was to examine magnetic characteristics of the globally most significant BHT deposits, and their host provinces, in order to develop a magnetic exploration model for BHT deposits. This involved detailed aeromagnetic interpretation of available datasets with reference to mapped geology. Four significant BHT provinces were studied: Broken Hill Block - Australia Eastern Succession, Mt Isa Block - Australia Bergslagen District - Sweden Aggenys -Gamsberg District - South Africa The study showed that host provinces to BHT deposits share common magnetic characteristics which reflect common geological characteristics. However, significant differences in the aeromagnetic character occur which are related to differences in volume of BHT host stratigraphy, basement stratigraphy and structural style of the host province. BHT deposits naturally divide into two classes, based on the presence or absence of magnetic minerals within the ore. This may result from differing ore-forming environments and/or fluid chemistry. Deposits which contain magnetic minerals within the ore are commonly associated with magnetic anomalies which are amongst the strongest within the host meiasedimentary /metavolcanic sequence. Deposits which do not contain magnetic minerals within the ore itself are associated with a locally anomalous signature when the immediate environs of the ore deposit are considered. The most economically signifcant deposit, Broken Hill (Australia), is of this type, although both types include large tonnage deposits. Thermodynamic modelling was undertaken to test whether the variations of magnetic deposit signatures could be explained by variations in the environment of exhalation. The roles of boiling, cooling and seawater mixing (oxidised and reduced) as precipitation mechanisms were examined. The modelling showed that a single fluid can give rise to a spectrum of iron oxide distribution, depending on whether the dominant precipitation mechanism was boiling, cooling, mixing with oxidised sea water or mixing with reduced sea water. Precursors to metamorphosed BHT ore and gangue minerals were produced by several of these thermodynamic models. It is concluded that the interpreter, when defining the likely spectrum of magnetic responses of a BHT deposit, must consider the likely range of environments of deposition consistent with known geology.
Denjoy-Carleman differentiable perturbation of polynomials and unbounded operators
Creators: name: Kriegl, Andreas
name: Michor, Peter W.
name: Rainer, Armin
Publisher: name: arXiv
Year: 2009
Subjects: subject: Functional Analysis (math.FA)
subject: Spectral Theory (math.SP)
subject: FOS: Mathematics
subject: 26C10, 26E10, 47A55

description: Let $t\mapsto A(t)$ for $t\in T$ be a $C^M$-mapping with values unbounded operators with compact resolvents and common domain of definition which are self-adjoint or normal. Here $C^M$ stands for $C^\om$ (real analytic), a quasianalytic or non-quasianalytic Denjoy-Carleman class, $C^\infty$, or a Hölder continuity class $C^{0,\al}$. The parameter domain $T$ is either $\mathbb R$ or $\mathbb R^n$ or an infinite dimensional convenient vector space. We prove and review results on $C^M$-dependence on $t$ of the eigenvalues and eigenvectors of $A(t)$.
description: 8 pages
Agrarian origins of industry in Leicestershire, with particular emphasis on the 1660-80 period.
Creators: name: Levine, David Cyril
Publisher: name: University of British Columbia
Year: 2011

description: This thesis is an analysis of the conditions which promoted the industrialization of the countryside in Leicestershire in the second half of the seventeenth century and the transformation of its agricultural economy from a peasant-subsistence level to market-oriented production. Although the particular focus of the thesis is the emergence of rural industrialization in West Goscote and agricultural commercialization in Framland (both of which are hundreds in Leicestershire), it was necessary to place the Leicestershire experience both within a broader national context and in a historical perspective. The years following 1660 were marked by the accelerated progress of agricultural modernization on the national, county and local level. An important by-product of this agricultural modernization was the creation not only of food surpluses but also of rural underemployment as the land became concentrated into a relatively small number of large-scale productive units. As labour was freed from agriculture it could be engaged in industrial activity. In our examination of West Goscote and Framland it was found that as the soil type was not consistent within each hundred it was necessary to distinguish sub-regions: the Soar river valley, and the Coal Measures and Charnwood Forest in West Goscote; the Vale of Belvoir, the Wreak valley and the Eastern Uplands, and North-east Framland in Framland. By using the Probate Inventories for the 1660 - 80 period (stored in the Leicestershire County Record Office) to reconstruct the socio-economic profiles for the average villages in each of these sub-regions, we could see the influence of soil structure in retarding or accelerating the modernization of the individual agrarian economies. The inability of the peasant society in the Soar valley to transform itself from peasant-subsistence farming to market-oriented production resulted in the emergence of endemic underemployment and desperate poverty. The existence of cheap labour in the Soar valley attracted merchant capitalist who established the framework knitting industry in the over-populated, poverty-stricken villages.
Additional file 1 of The life history theory of the Lord of the Rings: a randomized controlled trial of using fact versus fiction to teach life history theory
Creators: name: Maley, Carlo C.
name: Seyedi, Sareh
Publisher: name: figshare
Year: 2022
Subjects: subject: Genetics
subject: FOS: Biological sciences

description: Additional file 1: Text S1. The body of this article, without the experimental evaluation section, provided for teachers to use to teach life history theory.
Gold distribution at the E26 porphyry copper-gold deposit, Goonumbla N.S.W.
Creators: name: House, MJ
Publisher: name: University Of Tasmania
Year: 2023

description: The E26 porphyry copper-gold deposit is the largest of several copper-gold deposits discovered to date in the Goonumbla region of central west N.S.W. Cu and Au mineralisation occurs in areas of strong pervasive potassic alteration and quartz veining, associated with a small pipe-like quartz monzonite porphyry (QMP1). The mineralisation occurs both within the porphyry and the covolcanic late Ordovician trachyte-latite lavas and volcanic breccias that it has intruded. The deposit is bounded at depth and to the east by a biotite quartz monzonite, while to the immediate north, is another younger QMP (QMP2) which has stoped out the Cu-Au mineralisation. Several other QMP's occur to the northwest and at deeper levels in the E26 deposit. Copper mineralisation occurs principally as bornite with lesser chalcopyrite and chalcocitedigentite. Two bornite phases have been identified based on colour and mineral associations. Gold occurs principally as fine inclusions in bornite. The sulphides are zoned from a bornite-rich core, through a chalcopyrite zone to an outer pyrite halo associated with propylitic alteration. A weak base metal/gold association occurs in thin structurally controlled zones of quartz-sericite-pyrite alteration, away from the main E26 mineralisation. Within E26 itself, the bulk of the Au is confined to the central and deeper parts of the system and immediately around QMP 1. Cu however, continues to shallower depths and laterally further away from QMP 1 . This pattern is reflected in the Cu/Au ratios, and has led to the definition of two distinct vertical domains within the higher grade areas of E26. The upper domain is characterised by high copper grades but low gold grades; the lower domain contains similar copper grades but much higher gold grades. Sulphide composition, timing and alteration are similar within the Cu/Au domains defined. A geochemical model developed shows that the Cu/Au relationships observed at E26 can be explained by coprecipitation of Cu and Au, but at different rates due to differing changes in saturation levels between the two metals. Deposition of both metals from chloride complexes in high temperature, saline fluids was in response to a decrease in T, and changes in f02nand pH associated with hematisation of secondary magnetite associated with earlier biotite (potassic) alteration. The deposits at E22, E27 and E31N do not show the same degree of magnetite destruction as E26 and E48, are more deeply eroded, and therefore not as enriched in copper.
Taxonomy of ranunculus in Tasmania
Creators: name: Menadue, Y
Publisher: name: University Of Tasmania
Year: 2023

description: A taxonomic treatment has been made of Ranunculus in Tasmania. Mainland species have been included in some aspects of the work especially where they have particular bearing on the Tasmanian species. The approach was multifaceted and included traditional taxonomic methods of examination and description, and experimental investigations. Three new species have been described. Two species, R. decurvus and R. concinnus showed such close morphological similarity that multivariate morphometric analyses were employed to try to separate them. These analyses, principal components analysis, discriminant function analysis and a clustering technique, resulted in R. concinnus being considered a synonym under R. decurvus. An updated key for Tasmanian Ranunculus has been produced. Chromosome counts were made of 35 species. Intraspecific polyploid complexes were shown to occur in two native species, R. glabrifolius and R. amphitrichus. Transplant and controlled-environment growth experiments were conducted to investigate the polymorphism in R. nanus. Aspects of variation examined included leaf area, dentateness, petiole length and hairiness. These characters were shown to be phenotypically plastic. Different fixed genotypes of R. nanus occur in different habitats. A preliminary survey of the occurence of flavonoids was conducted. This line of research shows great potential as a method of elucidating the relationships between the species. One compound was identified as rutin and three other compounds were partially identified. 'Recent' evolution is indicated for many of the species and the processes of speciation are apparent. The alpine species show a high level of endemism. Inter-continental relationships are few. This study concludes with some general comments on the possible causes and evidence for these statements.
Confusion errors in serial learning
Creators: name: Schwartz, Robert Marc
Publisher: name: University of British Columbia
Year: 2011

description: Two experiments examined the relative ability of different probes in eliciting items occupying various positions in a serial list, the shape of the serial position curve, and the distribution of errors in serial learning. In Experiment I, position, sequential, and backward probes were employed after one presentation of a serial list. The results indicated that all three probes had equal eliciting strengths and that all three probes produced similar serial position curves. Analysis of errors revealed a gradient of generalization around the target word. In Experiment II error distribution and the serial position curve were examined in a learned serial list using the missing scan as a probe. Analysis of correct responding showed flat serial position curves, and the distribution of errors around the target word seemed essentially random. The results were discussed in terms of current theoretical representations of serial learning.
A reorganization of learning in the secondary years
Creators: name: Lohrey, Cynthia
Publisher: name: University Of Tasmania
Year: 2023

description: This paper considers the difficulties currently being experienced by secondary education in Tasmania and attempts to provide a methodology for a structural and organizational framework which would allow schools to arrange, evaluate and credential their own curriculum. The development of comprehensive high schools and major effects from them is analyzed through the Reports and Reviews conducted during the last two decades. Major emphases from this literature and other recent Australian and overseas findings form the basis for a more balanced secondary curriculum for students than it seems currently exists under the present structural and organizational practices. Throughout the paper recognition is made of changes in the context for learning and the implications for education, particularly during the adolescent years. Value changes in the whole community are believed to significantly complicate the pattern of adolescent learning. The proposed curriculum of common learning is approached through structural and organizational changes which allow a more extensive justification of the curriculum through rational planning approaches and policies. Changes are suggested in the school pattern to differentiate it less from the two adjoining phases of schooling - primary and senior secondary which seem to reveal higher levels of student satisfaction. A development of the role of the primary school teacher is intended to continue through work in pastoral care which includes emphases on social education and the integration of learning from elsewhere in the school and in the community. The curriculum of common learning is divided into four areas of experience - pastoral care, arts and crafts, communications and the humanities and maths, science and technology. All students give approximately equal time to these areas of experience with a more extensive allocation for pastoral care. The curriculum model suggested is a participative one where special consideration is given to these key features - student and community participation, evaluation and credentialling, staffing and teacher development. Methodologies are identified for the implementation of these focuses in secondary schools. Structures and practices are simplified so as to provide a flexibility to enable a more rapid reponse to needs as they are identified. The model more extensively utilizes community resources to provide a balanced curriculum of student-oriented learning which is arranged in less formal patterns.
Lagrangian studies in convective turbulence
Creators: name: Schumacher, Joerg
Publisher: name: arXiv
Year: 2009
Subjects: subject: Fluid Dynamics (physics.flu-dyn)
subject: Atmospheric and Oceanic Physics (physics.ao-ph)
subject: FOS: Physical sciences

description: We present high-resolution direct numerical simulations of turbulent three-dimensional Rayleigh-Benard convection with a focus on the Lagrangian properties of the flow. The volume is a Cartesian slab with an aspect ratio of four bounded by free-slip planes at the top and bottom and with periodic side walls. The turbulence is inhomogeneous with respect to the vertical direction. This manifests in different lateral and vertical two-particle dispersion and in a dependence of the dispersion on the initial tracer position for short and intermediate times. Similar to homogeneous isotropic turbulence, the dispersion properties depend in addition on the initial pair separation and yield a short-range Richardson-like scaling regime of two-particle dispersion for initial separations close to the Kolmogorov dissipation length. The Richardson constant is about half the value of homogeneous isotropic turbulence. The multiparticle statistics is very close to the homogeneous isotropic case. Clusters of four Lagrangian tracers show a clear trend to form flat, almost coplanar objects in the long-time limit and deviate from the Gaussian prediction. Significant efforts have been taken to resolve the statistics of the acceleration components up to order four correctly. We find that the vertical acceleration is less intermittent than the lateral one. The joint statistics of the vertical acceleration with the local convective and conductive heat flux suggests that rising and falling thermal plumes are not associated with the largest acceleration magnitudes. It turns out also that the Nusselt number which is calculated in the Lagrangian frame converges slowly in time to the standard Eulerian one.
description: 14 pages, 20 figures, Figs. 1,3,4,16,17,19 in reduced quality
Additional file 2 of The life history theory of the Lord of the Rings: a randomized controlled trial of using fact versus fiction to teach life history theory
Creators: name: Maley, Carlo C.
name: Seyedi, Sareh
Publisher: name: figshare
Year: 2022
Subjects: subject: Genetics
subject: FOS: Biological sciences

description: Additional file 2: Text S2. A six question worksheet for the fiction article.
Additional file 3 of The life history theory of the Lord of the Rings: a randomized controlled trial of using fact versus fiction to teach life history theory
Creators: name: Maley, Carlo C.
name: Seyedi, Sareh
Publisher: name: figshare
Year: 2022
Subjects: subject: Genetics
subject: FOS: Biological sciences

description: Additional file 3: Text S3. An equivalent six question worksheet for the factual article.
Additional file 4 of The life history theory of the Lord of the Rings: a randomized controlled trial of using fact versus fiction to teach life history theory
Creators: name: Maley, Carlo C.
name: Seyedi, Sareh
Publisher: name: figshare
Year: 2022
Subjects: subject: Genetics
subject: FOS: Biological sciences

description: Additional file 4: Text S4. Eight multiple choice questions used for our exam.
Studies in (a) chromosome breakage (b) natural selection.
Creators: name: Jackson, William Dalziel
Publisher: name: University Of Tasmania
Year: 2023

description: Species of Goodenia, Velleia, Selliera and Scaevola have a basic chromosome number of 8, whilst Dampiera and Brunonia show a basic number of 9. With the exception of Selliera radicans which has diploid and hexaploid races, all others are diploid
Heat conductance is strongly anisotropic for pristine silicon nanowires
Creators: name: Markussen, Troels
name: Jauho, Antti-Pekka
name: Brandbyge, Mads
Publisher: name: arXiv
Year: 2009
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: We compute atomistically the heat conductance for ultra-thin pristine silicon nanowires (SiNWs) with diameters ranging from 1 to 5 nm. The room temperature thermal conductance is found to be highly anisotropic: wires oriented along the <110> direction have 50-75% larger conductance than wires oriented along the <100> and <111> directions. We show that the anisotropies can be qualitatively understood and reproduced from the bulk phonon band structure. Ab initio density functional theory (DFT) is used to study the thinnest wires, but becomes computationally prohibitive for larger diameters, where we instead use the Tersoff empirical potential model (TEP). For the smallest wires, the thermal conductances obtained from DFT- and TEP calculations agree within 10%. The presented results could be relevant for future phonon-engineering of nanowire devices.
description: 7 pages, 5 figures
1. On the importance of the relation [(A,B.), (A.C.)] (A, [B,C,) (C.A.), (A,B)] between three elements of a structure ; 2. Komplexe euklidische Raume von beliebiger endliche oder transfiniter Dimensionszahl ; 3. Intrinsic topology and completion of Boolean rings ; 4. Uber die Dimension linearer Raume.
Creators: name: Lowig, HFJ
Publisher: name: University Of Tasmania
Year: 2023

description: While the Dedekind axiom is identical with its dual counterpart the corresponding assertion about the equation (2) is not true. THEOREM 11. In our structure A the equation (10) is generally valid. The proof follows easily from the dual counterpart of Theorem 9. Of course Theorem 11 can also be verified simply by the table on p. 576: THEOREM 12. The assertion that in a structure the equation (2) holds for arbitrary elements, A, B, and C, and the assertion dually corresponding to this assertion are not equivalent. PROOF. See Theorem 11.
[Collected papers on botany : apples and eucalypts].
Creators: name: Martin, Donald
Publisher: name: University Of Tasmania
Year: 2023

description: Variation within trees of diameter, colour, firmness, starch conversion, total acid, and soluble solids of fruit was examined for branches of different aspect for four varieties of apples and at different stages of maturity for one of them. Incidence of the storage disorders pit and breakdown in Cox, Jonathan spot and deep scald in Jonathan, and pit in Cleopatra and Sturmer was examined in quarter-inch size groups within trees. The data revealed that the frequency distribution of all variables except starch conversion were of the unimodal, symmetric, or slightly skew type. Starch conversion showed strong positive skewness at low values and strong negative skewness at high values, which is characteristic of variables which have defined limits. As fruit matured, variability increased, except for starch conversion, which decreased. For three varieties, but not for a fourth, the pattern of correlation between variables within branches resembled the pattern obtained by correlating the variables at different stages of maturity of fruit from one source, but heterogeneity between branches weakened the correlation for the tree as a whole. The pattern of means in relation to aspect was not necessarily the same for two adjacent trees or for the same tree at different maturities, indicating that aspect as such was not the cause of heterogeneity within a tree but that the branches behaved as organic units. Size was, correlated within a tree with incidence of the disorders pit and breakdown, but while the relationship appeared to be linear over the restricted size range there was no justification for extrapolating this relationship. There was evidence of between-branch variation in disorder incidence.
title: Endangered Species Act Section 7(a)(2) Biological Opinion and Magnuson-Stevens Fishery Conservation and Management Act Essential Fish Habitat Response for the Southwest Oregon Regional Airport Runway Safety Area Improvements, North Bend, Oregon
titleType: Other
Creators: name: United States. National Marine Fisheries Service. West Coast Region
Publisher: name: United States. National Marine Fisheries Service. West Coast Region
Year: 2020

description: ESA Section 7 Consultation ; WCRO-2019-03422
Collisions of Ultracold Trapped Cesium Feshbach Molecules
Creators: name: Ferlaino, F.
name: Knoop, S.
name: Berninger, M.
name: Mark, M.
name: Naegerl, H. -C.
name: Grimm, R.
Publisher: name: arXiv
Year: 2009
Subjects: subject: Quantum Gases (cond-mat.quant-gas)
subject: Other Condensed Matter (cond-mat.other)
subject: FOS: Physical sciences

description: We study collisions in an optically trapped, pure sample of ultracold Cs$_2$ molecules in various internal states. The molecular gas is created by Feshbach association from a near-degenerate atomic gas, with adjustable temperatures in the nanokelvin range. We identify several narrow loss resonances, which point to the coupling to more complex molecular states and may be interpreted as Feshbach resonances in dimer-dimer interactions. Moreover, in some molecular states we observe a surprising temperature dependence in collisional loss. This shows that the situation cannot be understood in terms of the usual simple threshold behavior for inelastic two-body collisions. We interpret this observation as further evidence for a more complex molecular structure beyond the well-understood dimer physics.
description: To appear in Laser Physics, special issue in memoriam Prof. Vladilen S. Letokhov
Rationality and religious belief
Creators: name: Kowaluk, AT
Publisher: name: University Of Tasmania
Year: 2023

description: The aim of this dissertation is to enquire into the rationality of religious belief and, in particular, into the rationality of the Christian belief-system. The method employed is one of analysing what Christians have had to say about the rationality of what they believe rather than that of first arriving at a set of conditions severally necessary and jointly sufficient for the rationality of belief in general, and then determining whether or not the Christian belief-system would satisfy them. Irrationalism is the first position that is examined, with particular reference to the work of Soren Kierkegaard. The Irrationalist holds both that there is a fundamental conflict between faith and reason, and that irrationality is an absolute condition of an adequate Christian Faith. Both tenets of the. Irrationalist's position are considered and each is rejected as untenable. The second position examined is that of St. Thomas Aquinas. Aquinas argues that there is a body of evidence which can settle the dispute between believer and sceptic. His position is examined with particular reference to his distinction between the preambles to faith and the articles of faith. A number of inconsistencies are pointed out. Chapters 3 and 4 consider two of the more important arguments for the existence of God. Chapter 3 considers the Ontological Argument with particular reference to Saint Anselm's version of it. The argument is rejected as are modern attempts to resurrect it. Chapter 4 considers the Cosmological Argument with particular reference to the first and most important three of Aquinas' five ways. These are also found wanting. Chapter 5 focuses upon two contemporary attempts to defend Christianity against charges that it is irrational in the absence of a successful theistic proof. The positions considered are those of Norman Malcolm and Alvin Plantinga. Whilst there are significant differences between the two, both point out that evidence must end somewhere and argue that belief in the existence of God belongs to that set of beliefs which do not require evidence. Both positions are found wanting.
Economical presentations of matroids by functions
Creators: name: Lintzeris, Constantine
Publisher: name: University Of Tasmania
Year: 2023

description: Matroid theory arose as an attempt to generalize and unify concepts in such relatively distinct areas of mathematics as linear algebra, graph theory, finite geometry and lattice theory. Consequently, there are many equivalent ways of viewing matroids. Our main interest in this thesis is the description of matroids by integer-valued functions on the subsets of their ground-sets. Early papers in this direction by Dilworth [14] and Ingleton [21] contain in implicit form the following characterization of a matroid by its rank function.
Extending binary operations to funtor-spaces
Creators: name: Banakh, Taras
name: Gavrylkiv, Volodymyr
Publisher: name: arXiv
Year: 2010
Subjects: subject: Category Theory (math.CT)
subject: General Topology (math.GN)
subject: FOS: Mathematics
subject: 18B30, 18B40, 20N02, 20M50, 22A22, 54B30, 54H10

description: Given a continuous monadic functor T in the category of Tychonov spaces for each discrete topological semigroup X we extend the semigroup operation of X to a right-topological semigroup operation on TX whose topological center contains the dense subsemigroup of all elements of TX that have finite support.
description: 10 pages
The relationship between inspection time and IQ in specific reading disabled grade 7 students
Creators: name: Lancaster, M
Publisher: name: University Of Tasmania
Year: 2023

description: This study investigated the relationship between inspection time and IQ in a total sample of 155 specific reading disabled (SRD) and normal children aged 12 and 13 of average and above-average intelligence and in IQ matched subsamples of 24 each. The Standard Progressive Matrices and a computerised inspection time (IT) task using the adaptive staircase procedure with an accuracy level of 79.4% were adopted. It was hypothesised that, due to the low level perceptual deficits involved in specific reading disability, there would be a significant difference between the mean ITs of SRDs and normals, which in turn would lead to less correlation between IT and IQ in SRDs, thereby implicating these low level visual deficits in the association between IT and IQ. The results showed that there was no significant difference between the mean ITs of both groups, nor was there a differential IT-IQ correlation in the predicted direction. On the contrary, a marginally significant higher IT-IQ correlation was found in SRDs. This presents a theoretical paradox, for whereas the former results indicate that low level perceptual deficits are not involved in inspection time, the latter finding suggests that they are. Further research is needed to resolve this anomaly.
Gravitational waves from an early matter era
Creators: name: Assadullahi, Hooshyar
name: Wands, David
Publisher: name: arXiv
Year: 2009
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We investigate the generation of gravitational waves due to the gravitational instability of primordial density perturbations in an early matter-dominated era which could be detectable by experiments such as LIGO and LISA. We use relativistic perturbation theory to give analytic estimates of the tensor perturbations generated at second order by linear density perturbations. We find that large enhancement factors with respect to the naive second-order estimate are possible due to the growth of density perturbations on sub-Hubble scales. However very large enhancement factors coincide with a breakdown of linear theory for density perturbations on small scales. To produce a primordial gravitational wave background that would be detectable with LIGO or LISA from density perturbations in the linear regime requires primordial comoving curvature perturbations on small scales of order 0.02 for Advanced LIGO or 0.005 for LISA, otherwise numerical calculations of the non-linear evolution on sub-Hubble scales are required.
description: 23 pages, 2 figures
On the theory of astronomical maser. I. Statistics of maser radiation
Creators: name: Dinh-V-Trung
Publisher: name: arXiv
Year: 2009
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: In this paper we re-analyse the amplification process of broadband continuum radiation by astronomical masers in one-dimensional case. The basic equations appropriate for the scalar maser and the random nature of the maser radiation field are derived from basic physical principles. Comparision with the standard radiation transfer equation allows us to examine the underlying assumptions involved in the current theory of astronomical masers. Simulations are carried out to follow the amplification of different realisations of the broadband background radiation by the maser. The observable quantities such as intensity, spectral line profile are obtained by averaging over an ensemble of the emerging radiation corresponding to the amplified background radiation field. Our simulations show that the fluctuations of the radiation field inside the astronomical maser deviates significantly from Gaussian statistics even when the maser is only partially saturated. Coupling between different frequency modes and the population pulsing are shown to have increasing importance in the transport of maser radiation as the maser approaches saturation. Our results suggest that the standard formulation of radiation transfer provides a satisfactory description of the intensity and the line narrowing effect in the unsaturated and partially saturated masers within the framework of one-dimensional model. Howerver, the application of the same formulation to the strong saturation regime should be considered with caution.
description: 16 pages, 4 figures, to appear on MNRAS
Pressure-driven phase transitions in correlated systems
Creators: name: Zhang, Yu-Zhong
name: Opahle, Ingo
name: Jeschke, Harald O.
name: Valenti, Roser
Publisher: name: arXiv
Year: 2009
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: Motivated by recent experimental measurements on pressure-driven phase transitions in Mott-insulators as well as the new iron pnictide superconductors, we show that first principles Car-Parrinello molecular dynamics calculations are a powerful method to describe the microscopic origin of such transitions. We present results for (i) the pressure-induced insulator to metal phase transition in the prototypical Mott insulator TiOCl as well as (ii) the pressure-induced structural and magnetic phase transitions in the family of correlated metals $A$Fe$_2$As$_2$ ($A$=Ca,Sr,Ba). Comparison of our predictions with existing experimental results yields very good agreement.
description: Submitted to Journal of Physics: Condensed Matter (proceedings ICM 2009)
A stochastic damage model for creep-failure behavior of quasi-brittle materials
Creators: name: Wang, Qing
name: Ren, Xiaodan
Publisher: name: The Biot-Bazant Conference
Year: 2021
Subjects: classificationCode: 400599
subject: Civil engineering not elsewhere classified

description: This publication is part of the proceedings of the Biot-Bažant Conference on Engineering Mechanics and Physics of Porous Materials, which took place virtually on June 1-3, 2021. It contains a one-page abstract and the video of the talk that was given at the conference.
Arrested phase separation in reproducing bacteria: a generic route to pattern formation?
Creators: name: Cates, M. E.
name: Marenduzzo, D.
name: Pagonabarraga, I.
name: Tailleur, J.
Publisher: name: arXiv
Year: 2010
Subjects: subject: Populations and Evolution (q-bio.PE)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Biological sciences
subject: FOS: Physical sciences

description: We present a generic mechanism by which reproducing microorganisms, with a diffusivity that depends on the local population density, can form stable patterns. It is known that a decrease of swimming speed with density can promote separation into bulk phases of two coexisting densities; this is opposed by the logistic law for birth and death which allows only a single uniform density to be stable. The result of this contest is an arrested nonequilibrium phase separation in which dense droplets or rings become separated by less dense regions, with a characteristic steady-state length scale. Cell division mainly occurs in the dilute regions and cell death in the dense ones, with a continuous flux between these sustained by the diffusivity gradient. We formulate a mathematical model of this in a case involving run-and-tumble bacteria, and make connections with a wider class of mechanisms for density-dependent motility. No chemotaxis is assumed in the model, yet it predicts the formation of patterns strikingly similar to those believed to result from chemotactic behavior.
title: Endangered Species Act Section 7(a)(2) Biological Opinion, and Magnuson-Stevens Fishery Conservation and Management Act Essential Fish Habitat Response for the NuStar Energy, Inc. Revetment Repair on the Willamette River (HUC 170900120202), Multnomah County, Oregon (Corps No.:NWP-2019-521)
titleType: Other
Creators: name: United States. National Marine Fisheries Service. West Coast Region
Publisher: name: United States. National Marine Fisheries Service. West Coast Region
Year: 2020

description: ESA Section 7 Consultation ; WCRO-2020-00477
On the accuracy of the high redshift cluster luminosity function
Creators: name: Muñoz, Roberto P.
name: Padilla, Nelson D.
name: Barrientos, Luis F.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We study the reliability of the statistical background subtraction method for computing the Ks-band luminosity function of cluster galaxies at z~1 using mock Red-sequence Cluster Survey cluster catalogues constructed from GALFORM semi-analytic galaxies. The underlying cluster luminosity function in the mocks are compatible with recent estimates at z~1 by several authors. We simulate different samples where the number of clusters with Ks-band photometry goes from 5 to a maximum of 50, in order to find the most suitable observational sample to carry out this study; the current observational status in the nIR wavelength range has been reached using 5 real clusters at z~1. We compute the composite luminosity function for several samples of galaxy clusters with masses 1.5x10^14 M_sun assuming a flux limited, complete sample of galaxies down to Ks=21.0 magnitudes. We find that the Schechter fit parameters Ks* and alpha for a sample of galaxies with no redshift information are rather poorly constrained if both parameters are allowed to vary freely; if alpha is fixed at a fiducial value, then Ks* shows significantly improved stochastic uncertainties but can be influenced by systematic deviations. We find a significantly improved accuracy in the luminosity function parameters when adding photometric redshift information for bright cluster galaxies. The dwarf-to-giant ratios inferred from the luminosity functions of red-sequence galaxies in the mock catalogue agree very well with the underlying values. Finally, we find that in order to use estimates of Ks* to study the formation redshift of cluster galaxies at z=1, the sample would need to contain 520 z~1 clusters, for an accuracy of 2 Gyr at the 68 per cent confidence level.
description: 12 pages, 8 figures. Accepted for publication in MNRAS
title: Endangered Species Act Section 7(a)(2) Biological Opinion for the Pismo Creek RV Resort in Pismo Beach, California
titleType: Other
Creators: name: United States. National Marine Fisheries Service. West Coast Region
Publisher: name: United States. National Marine Fisheries Service. West Coast Region
Year: 2019

description: ESA Section 7 Consultation ; WCRO-2019-01650