cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Structure and expression of mammalian metallothioneins
Creators: name: Holloway, Adele
Publisher: name: University Of Tasmania
Year: 2023

description: Metallothioneins (MTs) are metal binding proteins which have been implicated in a variety of physiological roles, including heavy metal detoxification, metal homeostasis and free radical scavenging. In both the human and the sheep there are multiple MT isoforms which may provide functional diversity. In both species differential regulation and expression patterns of MT isoforms have been reported. The work presented here investigates the expression and gene structure of MTs in these two mammalian species; firstly investigating MT in the developing sheep brain, and secondly studying a novel human MT isogene, MTIL. The underlying theme is to correlate the structure and expression profiles of specific MT isoforms with their proposed physiological functions. Since the discovery of a novel MT in humans, MT-III, which is brain specific, much interest has centred on the expression and role of all MTs in the brain. In this thesis, the sheep was used as a model system in which to study the neural expression of MT at the RNA and protein level. MT-I and -II expression was found to be correlated with the development of glial cells, and limited solely to glial cells including foetal oligodendrocytes, which were previously not suspected to be involved in MT physiology. Distinctive shifts in the regional and cell-type expression of MT were observed during neural development, and these are discussed in terms of the functional role of MT. The expression of MT-III, the brain specific isoform, is of current interest. This thesis reports the cloning of the gene encoding this isoform from a sheep brain cDNA library. Although homologous to MT-III isoforms from other species, the predicted sheep MT-III protein sequence contains several unique features, including the deletion of a highly conserved 3 amino acid sequence, and thus may have altered metal binding properties. Sheep MT-III mRNA was shown to follow the same regional and developmental expression patterns as MT-I and -II mRNA. This unique MT-III isoform may be useful to resolve pending questions about the role of MT-III in the brain, and the apparent neurotrophic actions of this isoform. This work also investigates a novel human MT isogene, MTIL, which contains a TGA (\stop\") codon midway through the transcribed region. By analogy to previously characterised human MT genes this codon interrupts the putative coding region of MTIL suggesting the isogene is either not functional expresses a truncated protein or potentially produces a novel selenoprotein. In previous work the author has shown that the gene has biological activity since it can confer resistance to cadmium to a transfected cell line. In this thesis MTIL was shown to produce a full length mRNA transcript when cloned into expression vectors and furthermore expression of MTIL mRNA was detected in a range of endocrine tissues and lymphocytes by northern blotting and RT-PCR. These findings confirm that MTIL has the potential to contribute to the repertoire of MT expression in the human."
Supersolid and solitonic phases in one-dimensional Extended Bose-Hubbard model
Creators: name: Mishra, Tapan
name: Pai, Ramesh V.
name: Ramanan, S.
name: Luthra, Meetu Sethi
name: Das, B. P.
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 report our findings on quantum phase transitions in cold bosonic atoms in a one dimensional optical lattice using the finite size density matrix renormalization group method in the framework of the extended Bose-Hubbard model. We consider wide ranges of values for the filling factors and the nearest neighbor interactions. At commensurate fillings, we obtain two different types of charge density wave phases and a Mott insulator phase. However, departure from commensurate fillings yield the exotic supersolid phase where both the crystalline and the superfluid orders coexist. In addition, we obtain signatures for solitary waves and also superfluidity.
description: 7 pages, 11 figures
Higher Dimensional Dark Energy Investigation with Variable $Λ$ and $G$
Creators: name: Mukhopadhyay, Utpal
name: Ghosh, Partha Pratim
name: Ray, Saibal
Publisher: name: arXiv
Year: 2010
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: Time variable $Λ$ and $G$ are studied here under a phenomenological model of $Λ$ through an ($n+2$) dimensional analysis. The relation of Zeldovich (1968) $|Λ| = 8πG^2m_p^6/h^4$ between $Λ$ and $G$ is employed here, where $m_p$ is the proton mass and $h$ is Planck's constant. In the present investigation some key issues of modern cosmology, viz. the age problem, the amount of variation of $G$ and the nature of expansion of the Universe have been addressed.
description: 7 Latex pages with few changes
A rigorous treatment of the perturbation theory for many-electron systems
Creators: name: Kashima, Yohei
Publisher: name: arXiv
Year: 2009
Subjects: subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences
subject: 81T25; 41A58; 65Z05

description: Four point correlation functions for many electrons at finite temperature in periodic lattice are analyzed by the perturbation theory with respect to the coupling constant. The correlation functions are characterized as a limit of finite dimensional Grassmann integrals. A lower bound on the radius of convergence and an upper bound on the perturbation series are obtained. The perturbation series up to second order is numerically implemented along with the volume-independent upper bounds on the sum of the higher order terms in 2 dimensional case.
description: 61 pages
Additional file 1 of Cost-effectiveness analysis of sintilimab plus bevacizumab biosimilar compared with lenvatinib as the first-line treatment of unresectable or metastatic hepatocellular carcinoma
Creators: name: Zhou, Ting
name: Wang, Xintian
name: Cao, Yingdan
name: Yang, Lan
name: Wang, Zijing
name: Ma, Aixia
name: Li, Hongchao
Publisher: name: figshare
Year: 2022
Subjects: Medicine
Pharmacology
Biological Sciences not elsewhere classified
Cancer
Science Policy

description: Supplementary Material 1
Higgs to Gamma Gamma beyond the Standard Model
Creators: name: Cacciapaglia, Giacomo
name: Deandrea, Aldo
name: Llodra-Perez, Jeremie
Publisher: name: arXiv
Year: 2009
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We consider the H to gamma gamma decay process and the gluon fusion production of a light Higgs, and provide a general framework for testing models of new physics beyond the Standard Model. We apply our parametrisation to typical models extending the Standard Model in 4 and 5 dimensions, and show how the parametrisation can be used to discriminate between different scenarios of new physics at the Large Hadron Collider and at future Linear Colliders.
description: 47 pages, 5 figures; references and UED case added
Performance of data networks with random links
Creators: name: Fuks, Henryk
name: Lawniczak, Anna T.
Publisher: name: arXiv
Year: 1999
Subjects: subject: Adaptation and Self-Organizing Systems (nlin.AO)
subject: Networking and Internet Architecture (cs.NI)
subject: FOS: Physical sciences
subject: FOS: Computer and information sciences

description: We investigate simplified models of computer data networks and examine how the introduction of additional random links influences the performance of these net works. In general, the impact of additional random links on the performance of the network strongly depends on the routing algorithm used in the network. Significant performance gains can be achieved if the routing is based on "geometrical distance" or shortest path reduced table routing. With shortest path full table routing degradation of performance is observed.
description: 20 pages, 10 figures
Magnetocaloric properties of nanocrystalline La$_{0.125}$Ca$_{0.875}$MnO$_{3}$
Creators: name: Biswas, Anis
name: Samanta, Tapas
name: Banerjee, S.
name: Das, I.
Publisher: name: arXiv
Year: 2009
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: Some recent experimental studies show the invisibility of antiferromagnetic transition in the cases of manganites when their particle size is reduced to nanometer scale. In complete contrast to these cases, we have observed the signature of antiferromagnetic transition in the magnetocaloric properties of nanocrystalline La$_{0.125}$Ca$_{0.875}$MnO$_{3}$ of average particle size 70 and 60 nm similar to its polycrystalline bulk form. The system exhibit inverse magnetocaloric effect in its polycrystalline and nanocrystalline form. An extra ferromagnetic phase is stabilized at low temperature for the sample with particle size $\sim 60$ nm.
description: 3 Figures
Tight binding model for iron pnictides
Creators: name: Calderon, M. J.
name: Valenzuela, B.
name: Bascones, E.
Publisher: name: arXiv
Year: 2009
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: We propose a five-band tight-binding model for the Fe-As layers of iron pnictides with the hopping amplitudes calculated within the Slater-Koster framework. The band structure found in DFT, including the orbital content of the bands, is well reproduced using only four fitting parameters to determine all the hopping amplitudes. The model allows to study the changes in the electronic structure caused by a modification of the angle $α$ formed by the Fe-As bonds and the Fe-plane and recovers the phenomenology previously discussed in the literature. We also find that changes in $α$ modify the shape and orbital content of the Fermi surface sheets.
description: 12 pages, 6 eps figures. Figs 1 and 2 modified, minor changes in the text. A few references added
\These sad distracted tymes\" : the impact of the Civil War and Interregnum on English music c.1640 to c.1660"
Creators: name: Ellis, Bronwyn Irene
Publisher: name: University Of Tasmania
Year: 2023

description: The music of mid-seventeenth-century England, and particularly of the Civil War and Interregnum, is a period frequently overlooked or misconstrued by musicology. The powerful image of the 1640s and 1650s as two decades of artistic desolation under the harsh administration of an oppressive religious regime has impacted heavily on the historiographical perception of its music. The Civil War, Commonwealth and Protectorate undoubtedly altered aspects of English musical culture, whether through the disbanding of the royal musical establishment, restriction of the use of music in worship, or prohibition of stage plays. However, these events and influences must be seen in the context of their time rather than isolated as examples of Puritan aggression. For instance, the position of the Commonwealth government in regard to the church and stage was not without general precedent or political justification ‚ÄövÑvÆ power merely provided the opportunity to instigate long-desired reforms and necessitated the careful use of censorship. In direct contrast with the image of the Civil War and Interregnum as a time of bleak silence, these years witnessed an enthusiastic continuation of domestic music and a marked increase in musical publication. Even in the religious and theatrical settings, the composition and performance of music was a recurrent feature. The Civil War and Interregnum therefore had a varied, but not necessarily devastating effect on English music of the 1640s and 1650s. In awareness of the historiographical forces that have hitherto shaped the reception of the period, this thesis will determine the impact of \these sad distracted tymes\" on the music of mid-seventeenth-century England."
Effects of X-ray irradiation and disk flaring on the [NeII] 12.8 micron emission from young stellar objects
Creators: name: Schisano, E.
name: Ercolano, B.
name: Guedel, M.
Publisher: name: arXiv
Year: 2009
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: FOS: Physical sciences

description: The [Ne II] fine-structure emission line at 12.8 micron has been detected in several young stellar objects (YSO) spectra. This line is thought to be produced by X-ray irradiation of the warm protoplanetary disk atmospheres, however the observational correlation between [Ne II] luminosities and measured X-ray luminosities shows a large scatter. Such spread limits the utility of this line as a probe of the gaseous phase of disks, as several authors have suggested pollution by outflows as a probable cause of the observed scatter. In this work we explore the possibility that the large variations in the observed [Ne II] luminosity may be caused instead by different star-disk parameters. In particular we study the effects that the hardness of the irradiating source and the structure (flaring) of the disk have on the luminosity and spectral profile of the [Ne II] 12.8 micron line. We find that varying these parameter can indeed cause up to an order of magnitude variation in the emission luminosities which may explain the scatter observed, although our models predict somewhat smaller luminosities than those recently reported by other authors who observed the line with the Spitzer Space Telescope. Our models also show that the hardness of the spectrum has only a limited (undetectable) effect on the line profiles, while changes in the flaring power of the disk significantly affect the size of the [Ne II] emission region and, as a consequence, its line profile. In particular we suggest that broad line profiles centred on the stellar radial velocity may be indicative of flat disks seen at large inclination angles.
description: 9 pages, 8 figures. accepted for publication in MNRAS
Packet delay in models of data networks
Creators: name: Fuks, Henryk
name: Lawniczak, Anna T.
name: Volkov, Stanislav
Publisher: name: arXiv
Year: 2002
Subjects: subject: Networking and Internet Architecture (cs.NI)
subject: Cellular Automata and Lattice Gases (nlin.CG)
subject: FOS: Computer and information sciences
subject: FOS: Physical sciences
subject: I.6.5;G3

description: We investigate individual packet delay in a model of data networks with table-free, partial table and full table routing. We present analytical estimation for the average packet delay in a network with small partial routing table. Dependence of the delay on the size of the network and on the size of the partial routing table is examined numerically. Consequences for network scalability are discussed.
description: 19 pages, 4 figures
A class of cellular automata equivalent to deterministic particle systems
Creators: name: Fuks, Henryk
Publisher: name: arXiv
Year: 2002
Subjects: subject: Cellular Automata and Lattice Gases (nlin.CG)
subject: FOS: Physical sciences

description: We demonstrate that a local mapping f in a space of bisequences over {0,1} which conserves the number of nonzero sites can be viewed as a deterministic particle system evolving according to a local mapping in a space of increasing bisequences over Z. We present an algorithm for determination of the local mapping in the space of particle coordinates corresponding to the local mapping f.
description: 14 pages
Dark Matter Angular Momentum Profile from the Jeans Equation
Creators: name: Schmidt, Kasper B.
name: Hansen, Steen H.
name: An, Jin H.
name: Williams, Liliya L. R.
name: Maccio', Andrea V.
Publisher: name: arXiv
Year: 2009
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: Cosmological simulations of dark matter structures have shown that the equilibrated dark matter structures have a fairly small angular momentum. It appears from these N-body simulations that the radial profile of the angular momentum has an almost universal behavior, even if the different dark matter structures have experienced very different formation and merger histories. We suggest a perturbed Jeans equation, which includes a rotational term. This is done under a reasonable assumed form of the change in the distribution function. By conjecturing that the (new) subdominant rotation term must be proportional to the (old) dominant mass term, we find a clear connection, which is in rather good agreement with the results of recent high resolution simulations. We also present a new connection between the radial profiles of the angular momentum and the velocity anisotropy, which is also in fair agreement with numerical findings. Finally we show how the spin parameter $λ$ increases as a function of radius.
description: 9 pages, 10 figures, accepted for publication in ApJ, Added references
Individual-based lattice model for spatial spread of epidemics
Creators: name: Fuks, Henryk
name: Lawniczak, Anna T.
Publisher: name: arXiv
Year: 2002
Subjects: subject: Cellular Automata and Lattice Gases (nlin.CG)
subject: Quantitative Biology (q-bio)
subject: FOS: Physical sciences
subject: FOS: Biological sciences

description: We present a lattice gas cellular automaton (LGCA) to study spatial and temporal dynamics of an epidemic of SIR (susceptible-infected-removed) type. The automaton is fully discrete, i.e. space, time and number of individuals are discrete variables. The automaton can be applied to study spread of epidemics in both human and animal populations. We investigate effects of spatial inhomogeneities in initial distribution of infected and vaccinated populations on the dynamics of epidemic of SIR type. We discuss vaccination strategies which differ only in spatial distribution of vaccinated individuals. Also, we derive an approximate, mean-field type description of the automaton, and discuss differences between the mean-field dynamics and the results of LGCA simulation.
description: 13 pages, 5 figures
Critical behavior of number-conserving cellular automata with nonlinear fundamental diagrams
Creators: name: Fuks, Henryk
Publisher: name: arXiv
Year: 2006
Subjects: subject: Cellular Automata and Lattice Gases (nlin.CG)
subject: FOS: Physical sciences

description: We investigate critical properties of a class of number-conserving cellular automata (CA) which can be interpreted as deterministic models of traffic flow with anticipatory driving. These rules are among the only known CA rules for which the shape of the fundamental diagram has been rigorously derived. In addition, their fundamental diagrams contain nonlinear segments, as opposed to majority of number-conserving CA which exhibit piecewise-linear diagrams. We found that the nature of singularities in the fundamental diagram of these rules is the same as for rules with piecewise-linear diagrams. The current converges toward its equilibrium value like $t^{-1/2}$, and the critical exponent $β$ is equal to 1. This supports the conjecture of universal behavior at singularities in number-conserving rules. We discuss properties of phase transitions occurring at singularities as well as properties of the intermediate phase.
description: 15 pages, 6 figures
Phase diagram of chiral quark matter: Fulde-Ferrell pairing from weak to strong coupling
Creators: name: Sedrakian, Armen
name: Rischke, Dirk H.
Publisher: name: arXiv
Year: 2009
Subjects: subject: Nuclear Theory (nucl-th)
subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: Superconductivity (cond-mat.supr-con)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We calculate the phase diagram of two-flavor quark matter in the temperature-flavor asymmetry plane in the case where there are three competing phases: the homogeneous Bardeen-Cooper-Schrieffer (BCS) phase, the unpaired phase, and a phase with broken spatial symmetry, which is here taken to be the counterpart of the Fulde-Ferrell (FF) phase in condensed matter physics. We show that the system belongs to the universality class of paramagnetic-ferromagnetic -helical systems. We vary the coupling constant of the theory, which is obtained from integrating out the gluonic degrees of freedom. In weak coupling, the FF phase is favored at arbitrary flavor asymmetries for sufficiently low temperatures; at intermediate coupling its occupancy domain is shifted towards larger asymmetries. Strong coupling features a new regime of an inhomogeneous FF state, which we identify with a current-carrying Bose-Einstein condensate of tightly bound up and down quarks. We analyze the occupation numbers and the Cooper-pair wave function and show that when the condensate momentum is orthogonal to the particle momentum the minority component contains a blocking region (breach) around the Fermi sphere in the weak-coupling limit, which engulfs more low-momentum modes as the coupling is increased, and eventually leads to a topological change in strong coupling, where the minority Fermi sphere contains either two occupied strips or an empty sphere. For non-orthogonal momenta, the blocking region is either reduced or extinct, i.e., no topological changes are observed.
description: 18 pages, 10 figures, uses RevTex
Interband superconductivity: contrasts between BCS and Eliashberg theory
Creators: name: Dolgov, O. V.
name: Mazin, I. I.
name: Parker, D.
name: Golubov, A. A.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: The newly discovered iron pnictide superconductors apparently present an unusual case of interband-channel pairing superconductivity. Here we show that, in the limit where the pairing occurs within the interband channel, several surprising effects occur quite naturally and generally: different density-of-states on the two bands lead to several unusual properties, including a gap ratio which behaves inversely to the ratio of density-of-states; the weak-coupling limit of the Eliashberg and the BCS theory, commonly taken as equivalent, in fact predict qualitatively different dependence of the $Δ_{1}/Δ_{2}$ and $Δ/T_{c}$ ratios on coupling constants. We show analytically that these effects follow directly from the interband character of superconductivity. Our results show that in the interband-only pairing model the maximal gap ratio is $\sqrt{N_{2}/N_{1}}$ as strong-coupling effects act only to reduce this ratio. This suggests that if the large experimentally reported gap ratios (up to a factor 2) are correct, the pairing mechanism must include more intraband interaction than is usually assumed.
description: 4 pages, 3 figures
Evidence of widespread hot plasma in a non-flaring coronal active region from Hinode/XRT
Creators: name: Reale, Fabio
name: Testa, Paola
name: Klimchuk, James A.
name: Parenti, Susanna
Publisher: name: arXiv
Year: 2009
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: Nanoflares, short and intense heat pulses within spatially unresolved magnetic strands, are now considered a leading candidate to solve the coronal heating problem. However, the frequent occurrence of nanoflares requires that flare-hot plasma be present in the corona at all times. Its detection has proved elusive until now, in part because the intensities are predicted to be very faint. Here we report on the analysis of an active region observed with five filters by Hinode/XRT in November 2006. We have used the filter ratio method to derive maps of temperature and emission measure both in soft and hard ratios. These maps are approximate in that the plasma is assumed to be isothermal along each line-of-sight. Nonetheless, the hardest available ratio reveals the clear presence of plasma around 10 MK. To obtain more detailed information about the plasma properties, we have performed Monte Carlo simulations assuming a variety of non-isothermal emission measure distributions along the lines-of-sight. We find that the observed filter ratios imply bi-modal distributions consisting of a strong cool (log T ~ 6.3-6.5) component and a weaker (few percent) and hotter (6.6 < log T < 7.2) component. The data are consistent with bi-modal distributions along all lines of sight, i.e., throughout the active region. We also find that the isothermal temperature inferred from a filter ratio depends sensitively on the precise temperature of the cool component. A slight shift of this component can cause the hot component to be obscured in a hard ratio measurement. Consequently, temperature maps made in hard and soft ratios tend to be anti-correlated. We conclude that this observation supports the presence of widespread nanoflaring activity in the active region.
description: 12 figures, accepted for publication on refereed journal
Catalytic Effect of Copper on Ozonation in Aqueous Solution
Creators: name: Kishimoto, Naoyuki
name: Arai, Haruki
Publisher: name: Taylor & Francis
Year: 2021
Subjects: subject: Biochemistry
subject: Microbiology
subject: FOS: Biological sciences
subject: 59999 Environmental Sciences not elsewhere classified
subject: FOS: Earth and related environmental sciences
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: Sociology
subject: FOS: Sociology
subject: 69999 Biological Sciences not elsewhere classified
subject: Inorganic Chemistry
subject: Plant Biology

description: Catalytic effects of cupric ion (Cu2+) and zero-valent copper (Cu0) on ozonation in aqueous solution were discussed in this research using 1,4-dioxane as a radical probe. Ozonation with Cu0 enhanced 1,4-dioxane removal, whereas Cu2+ had no catalytic effect. Two initiation steps were proposed for the catalytic effect of Cu0; the corrosion of Cu0 by oxygen and ozone and a one-electron redox reaction of Cu0 with ozone. The former produced cuprous ion (Cu+) and the latter produced both Cu+ and ozonide ion (O3˙−). Hydroxyl radicals (HO˙) was generated by the reaction of Cu+ with ozone and protonation of O3˙−.
Hidden Sector Models and Signatures
Creators: name: Liu, Zuowei
Publisher: name: arXiv
Year: 2009
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: In the Stueckelberg extension of the Standard Model (StSM), matter in the hidden sector can act as dark matter. Due to an interplay of mixings produced by the usual Higgs mechanism and the Stueckelberg mechanism in the neutral gauge boson sector, the hidden sector matter acquires a milli charge. The Stueckelberg extension also produces a narrow width Z prime which is detectable at the Large Hadron Collider. The hidden sector dark matter naturally explains the PAMELA positron excess by means of a Breit-Wigner enhancement through a Z prime resonance. We also discuss the origin of milli charge in the context of the kinetic mixing and the Stueckelberg mixing.
description: 10 pages, 8 figures, based on a talk presented at BSM-LHC 09; Boston, 2-4 June, 2009
Rare-earth impurities in Co$_2$MnSi: an opportunity to improve Half-Metallicity at finite temperatures
Creators: name: Burzo, E.
name: Balazs, I.
name: Chioncel, L.
name: Arrigoni, E.
name: Beiuseanu, F.
Publisher: name: arXiv
Year: 2010
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: We analyse the effects of doping Holmium impurities into the full-Heusler ferromagnetic alloy Co$_2$MnSi. Experimental results, as well as theoretical calculations within Density Functional Theory in the "Local Density Approximation plus Hubbard U" framework show that the holmium moment is aligned antiparallely to that of the transition metal atoms. According to the electronic structure calculations, substituting Ho on Co sites introduces a finite density of states in the minority spin gap, while substitution on the Mn sites preserves the half-metallic character.
description: 22 pages, 8 figures. published in PRB
Citizenship rights and housing tenure
Creators: name: Donoghue, Jeremy David
Publisher: name: University Of Tasmania
Year: 2023

description: This research analyses Australian understandings of citizenship in the context of different housing tenures. The thesis combines the theoretical work of Marshall and Mannheim to address variations and tensions in citizenship. Variations in the understanding and practice of citizenship among homeowners, homebuyers, private renters and social housing tenants are examined using both quantitative and qualitative research methods. The research highlights the relationship between citizens in different housing tenures to several key aspects of modern citizenship: membership, participation and security in their local community. The opportunities for citizens to actively participate, achieve a sense of membership and feeling of security within their local community are examined. The thesis contrasts the different understandings and experience of financially independent homeowners and homebuyers with citizens in both social and private rental housing. The analysis identifies tensions and ideals around the notions of a 'good citizen' and civic virtue. The value of the Australian 'dream' of home ownership is also explored. The main conclusions are that private renters experience less security and membership than public tenants, homeowners or purchasers in terms of their housing rights and engagement with the local community. Homeownership is strongly equated with notions of security and reflects higher levels of formal civic participation in charitable organisations than people in other tenures, including homebuyers. Homebuyers are focused on work and professional related activities and sport rather than charitable or community work. The strong feelings of tenure-based security among public tenants do not translate into high levels of formal civic participation, rather the opposite, although it does foster informal cultural activities and identification with the local community in contrast to private renters. These findings suggest that more substantive research needs to be undertaken into the 'benefits' of private rental and home purchase schemes to demonstrate the effectiveness of current housing policy in 'deepening' the quality of community life.
Formation of Interstellar Clouds: Parker Instability with Phase Transitions
Creators: name: Mouschovias, Telemachos Ch.
name: Kunz, Matthew W.
name: Christie, Duncan A.
Publisher: name: arXiv
Year: 2009
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: We follow numerically the nonlinear evolution of the Parker instability in the presence of phase transitions from a warm to a cold HI interstellar medium in two spatial dimensions. The nonlinear evolution of the system favors modes that allow the magnetic field lines to cross the galactic plane. Cold HI clouds form with typical masses ~= 10^5 M_sun, mean densities ~= 20 cm^-3, mean magnetic field strengths ~= 4.3 muG (rms field strengths ~= 6.4 muG), mass-to-flux ratios ~= 0.1 - 0.3 relative to critical, temperatures ~= 50 K, (two-dimensional) turbulent velocity dispersions ~= 1.6 km s^-1, and separations ~= 500 pc, in agreement with observations. The maximum density and magnetic field strength are ~= 10^3 cm^-3 and ~= 20 muG, respectively. Approximately 60% of all HI mass is in the warm neutral medium. The cold neutral medium is arranged into sheet-like structures both perpendicular and parallel to the galactic plane, but it is also found almost everywhere in the galactic plane, with the density being highest in valleys of the magnetic field lines. `Cloudlets' also form whose physical properties are in quantitative agreement with those observed for such objects by Heiles (1967). The nonlinear phase of the evolution takes ~< 30 Myr, so that, if the instability is triggered by a nonlinear perturbation such as a spiral density shock wave, interstellar clouds can form within a time suggested by observations.
description: 11 pages, 7 figures, accepted for publication in MNRAS; high-resolution color figures may be found at https://netfiles.uiuc.edu/mkunz/MKC08/
Second International Conference on Christian Hebraism in Eastern Central Europe (Budapeszt, 10–12 czerwca 2014 r.)
Creators: name: Pietkiewicz, Rajmund
Publisher: name: Wrocławski Przegląd Teologiczny
Year: 2019

description: Wrocławski Przegląd Teologiczny, Vol 22 No 2 (2014)
Multi-Band Mobility in Semiconducting Carbon Nanotubes
Creators: name: Zhao, Y.
name: Liao, A.
name: Pop, E.
Publisher: name: arXiv
Year: 2009
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: We present new data and a compact mobility model for single-wall carbon nanotubes, with only two adjustable parameters, the elastic and inelastic collision mean free paths at 300 K. The mobility increases with diameter, decreases with temperature, and has a more complex dependence on charge density. The model and data suggest the room temperature mobility does not exceed 10,000 cm2/V.s at high carrier density (n > 0.5 nm-1) for typical single-wall nanotube diameters, due to the strong scattering effect of the second subband.
description: accepted in IEEE Electron Device Letters
SN 2001em: Not so Fast
Creators: name: Schinzel, F. K.
name: Taylor, G. B.
name: Stockdale, C. J.
name: Granot, J.
name: Ramirez-Ruiz, E.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: SN 2001em is a peculiar supernova, originally classified as Type Ib/c. About two years after the SN it was detected in the radio, showing a rising radio flux with an optically thin spectral slope, and it also displayed a large X-ray luminosity (~10^{41} erg/s). Thus it was suspected to harbor a decelerating (by then, mildly) relativistic jet pointing away from us. About 3 years after its discovery the optical spectrum of SN 2001em showed a broad H-alpha line, and it was therefore reclassified as Type IIn. Here we constrain its proper motion and expansion velocity by analyzing four epochs of VLBI observations, extending out to 5.4 years after the SN. The supernova is still unresolved 5.4 years after the explosion. For the proper motion we obtain (23,000 +/- 30,000) km/s while our 2-sigma upper limit on the expansion velocity is 6000 km/s. These limits are somewhat tighter than those derived by Bietenholz & Bartel, and confirm their conclusion that late time emission from SN 2001em, a few years after the explosion, is not driven by a relativistic jet. VLA observations of the radio flux density, at 8.46 GHz, show a decay as t^{-1.23 +/- 0.40} starting ~2.7 years after the SN. Collectively, the observations suggest interaction of the SN ejecta with a very dense circumstellar medium, though the implied opacity constraints still present a challenge.
description: 21 pages, 8 figures, 4 tables, accepted for publication in ApJ (10/02/2008)
Sprawozdanie z seminarium naukowego w Papieskim Instytucie Biblijnym w Rzymie pt. Il Pentateuco („Pięcioksiąg”) (Rzym, 20–24 stycznia 2014 r.)
Creators: name: Kot, Piotr
Publisher: name: Wrocławski Przegląd Teologiczny
Year: 2019

description: Wrocławski Przegląd Teologiczny, Vol 22 No 2 (2014)
Konferencja „Od konserwacji do misji. Wokół Evangelii Gaudium”. Warszawa, Konferencja Episkopatu Polski, 22 października 2014 r.
Creators: name: Kowalski, Rafał
Publisher: name: Wrocławski Przegląd Teologiczny
Year: 2019

description: Wrocławski Przegląd Teologiczny, Vol 22 No 2 (2014)
A Measurement of Coherent Neutral Pion Production in Neutrino Neutral Current Interactions in NOMAD
Creators: name: Kullenberg, C. T.
name: Mishra, S. R.
Publisher: name: arXiv
Year: 2009
Subjects: subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: We present a study of exclusive neutral pion production in neutrino-nucleus Neutral Current interactions using data from the NOMAD experiment at the CERN SPS. The data correspond to $1.44 \times 10^6$ muon-neutrino Charged Current interactions in the energy range $2.5 \leq E_ν \leq 300$ GeV. Neutrino events with only one visible $π^0$ in the final state are expected to result from two Neutral Current processes: coherent $π^0$ production, {\boldmath $ν+ {\cal A} \to ν+ {\cal A} + π^0$} and single $π^0$ production in neutrino-nucleon scattering. The signature of coherent $π^0$ production is an emergent $π^0$ almost collinear with the incident neutrino while $π^0$'s produced in neutrino-nucleon deep inelastic scattering have larger transverse momenta. In this analysis all relevant backgrounds to the coherent $π^0$ production signal are measured using data themselves. Having determined the backgrounds, and using the Rein-Sehgal model for the coherent $π^0$ production to compute the detection efficiency, we obtain {\boldmath $4630 \pm 522 (stat) \pm 426 (syst)$} corrected coherent-$π^0$ events with $E_{π^0} \geq 0.5$ GeV. We measure {\boldmath $σ(ν{\cal A} \to ν{\cal A} π^0) = [ 72.6 \pm 8.1(stat) \pm 6.9(syst) ] \times 10^{-40} cm^2/nucleus$}. This is the most precise measurement of the coherent $π^0$ production to date.
description: 23 pages, 9 figures, accepted for publication in Phys. Lett. B
Analyse von Entwurfsentscheidungen in natürlichsprachiger Softwarearchitekturdokumentation
Creators: name: Sauer, Bjarne
Publisher: name: Karlsruher Institut für Technologie (KIT)
Year: 2021

description: Entwurfsentscheidungen bilden das Fundament zur Entwicklung qualitativ hochwertiger Softwaresysteme. Ihre Extraktion aus und Klassifikation in natürlichsprachiger Softwaredokumentation ermöglichen die Informationsgewinnung für Implementierungsund Wartungsprozesse und die Erstellung konsistenter Dokumentationsartefakte. Das in dieser Arbeit entwickelte Klassifikationsschema für Entwurfsentscheidungen erweitert bestehende Ansätze, die zwar in der Lage sind, Entwurfsentscheidungen in ihrer Breite zu klassifizieren, jedoch keine klar umrissenen Klassen für die Klassifikation in der hierarchischen Tiefe festlegen. Die hier entwickelten Klassen versuchen, die verschiedenen Arten von Entwurfsentscheidungen vollständig abzubilden. Die dazwischenliegenden, feingranulareren Trennlinien dienen dazu, die Entwurfsentscheidungen deutlicher voneinander abzugrenzen. Nachdem zunächst ein initiales Klassifikationsschema entworfen wird, wird in einem iterativen Prozess die Passform des Klassifikationsschemas durch die Anwendung auf die reale Softwarearchitekturdokumentation von 17 Fallstudien validiert und verbessert, bis hin zur Konvergenz auf ein ausgereiftes Schema. Neben einer Übersicht, welche Entwurfsentscheidungen getroffen und dokumentiert werden, liefert die manuelle Analyse der Fallstudien einen mit Labeln versehenen Textkorpus. In einem zweiten Teil wird eine Anwendungsmöglichkeit des entwickelten Klassifikationsschemas eröffnet, indem in einer Proof-of-Concept-Implementierung untersucht wird, mit welchen Ansätzen des maschinellen Lernens und der natürlichen Sprachverarbeitung Entwurfsentscheidungen in natürlichsprachiger Softwarearchitekturdokumentation identifiziert und klassifiziert werden können. Durch die Evaluation mit statistischen Maßen wird gezeigt, welche Methoden zur Textvorverarbeitung, zur Überführung in Vektorrepräsentationen und welche Lernalgorithmen besonders für diese Klassifikation geeignet sind. Die automatisierte Rückgewinnung von Entwurfsentscheidungen aus der Dokumentation und gleichzeitige Zuordnung zu Kategorien mit gemeinsamen Eigenschaften erleichtert Aspekte im Softwareentwicklungsprozess wie Verständlichkeit, Konsistenz und Wartbarkeit.
Extremal limits and black hole entropy
Creators: name: Carroll, Sean M.
name: Johnson, Matthew C.
name: Randall, Lisa
Publisher: name: arXiv
Year: 2009
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: Taking the extremal limit of a non-extremal Reissner-Nordström black hole (by externally varying the mass or charge), the region between the inner and outer event horizons experiences an interesting fate -- while this region is absent in the extremal case, it does not disappear in the extremal limit but rather approaches a patch of $AdS_2\times S^2$. In other words, the approach to extremality is not continuous, as the non-extremal Reissner-Nordström solution splits into two spacetimes at extremality: an extremal black hole and a disconnected $AdS$ space. We suggest that the unusual nature of this limit may help in understanding the entropy of extremal black holes.
description: 10 pages, 3 figures. Minor corrections and added references
ks. Janusz Czerski, Literatura epistolarna Nowego Testamentu, Część II: Listy deuteropawłowe – List do Hebrajczyków – Listy katolickie, Opolska Biblioteka Teologiczna 146, Opole 2014, ss. 241
Creators: name: Rosik, Mariusz
Publisher: name: Wrocławski Przegląd Teologiczny
Year: 2019

description: Wrocławski Przegląd Teologiczny, Vol 22 No 2 (2014)
Settlement abandonment - a case study of Walhachin - myth and reality
Creators: name: Riis, Nelson Andrew
Publisher: name: University of British Columbia
Year: 2011

description: It has commonly been assumed that the community of Walhachin, settled by British aristocracy during the immigration boom at the turn of the century, was eventually abandoned consequent to most of its manpower being lost as casualties during World War I. With investigation it was found that this explanation did not sufficiently account for Walhachin's failure. It was, however, the one accepted and offered by the settlers since it absolved them of all responsibility. The thesis is concerned with the identification and examination of the less obvious and yet more critical variables associated with the settlement's abandonment, and views these variables and their interrelationships within the unifying theme of settlement process. The variables examined range from "micro-climatic conditions" that worked against the settler's efforts as horticulturists to "levels of expectation" which determined the agricultural productivity demanded of the settlement. The results of the inquiry would suggest that Walhachin had never existed as a viable agricultural community. Since the settlement may be regarded virtually as a microcosm of variables inherent in agricultural frontier abandonment, its failure variables may be considered applicable not only to similar colonization schemes but to agricultural frontier regions generally. Two broad implications are derived from the findings. First, the generally accepted single-factor explanation of Walhachin's fate must be replaced by a multi-factor explanation. Second, the individual's inability to act effectively in a new environment plays a more important function than usually accorded it in frontier studies. The essence of the research was that even in retrospect, most of the settlers interviewed were either unwilling or unable to determine the most fundamental cause for Walhachin's failure - the settlers themselves.
Origin of the spectral linewidth in non linear oscillators based on MgO tunnel junctions
Creators: name: Georges, B.
name: Grollier, J.
name: Cros, V.
name: Fert, A.
name: Fukushima, A.
name: Kubota, H.
name: Yakushijin, K.
name: Yuasa, S.
name: Ando, K.
Publisher: name: arXiv
Year: 2009
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: We demonstrate the strong impact of the oscillator agility on the line broadening by studying spin transfer induced microwave emission in MgO-based tunnel junctions with current. The linewidth is almost not affected by decreasing the temperature. At very low currents, a strong enhancement of the linewidth at low temperature is attributed to an increase of the non linearity, probably due to the field-like torque. Finally we evidence that the noise is not dominated by thermal fluctuations but rather by the chaotization of the magnetization system induced by the spin transfer torque.
description: 12 pages, 3 figures, published in Phys. Rev. B 80, 060404 (2009)
Poissonian bursts in e-mail correspondence
Creators: name: Anteneodo, C.
name: Malmgren, R. Dean
name: Chialvo, D. R.
Publisher: name: arXiv
Year: 2009
Subjects: subject: Physics and Society (physics.soc-ph)
subject: Data Analysis, Statistics and Probability (physics.data-an)
subject: FOS: Physical sciences

description: Recent work has shown that the distribution of inter-event times for e-mail communication exhibits a heavy tail which is statistically consistent with a cascading Poisson process. In this work we extend the analysis to higher-order statistics, using the Fano and Allan factors to quantify the extent to which the empirical data depart from the known correlations of Poissonian statistics. The analysis shows that the higher-order statistics from the empirical data is indistinguishable from that of randomly reordered time series, thus demonstrating that e-mail correspondence is no more bursty or correlated than a Poisson process. Furthermore synthetic data sets generated by a cascading Poisson process replicate the burstiness and correlations observed in the empirical data. Finally, a simple rescaling analysis using the best-estimate rate of activity, confirms that the empirically observed correlations arise from a non-homogeneus Poisson process.
A unified framework for mechanics. Hamilton-Jacobi equation and applications
Creators: name: Balseiro, P.
name: Marrero, J. C.
name: de Diego, D. Martin
name: Padron, E.
Publisher: name: arXiv
Year: 2010
Subjects: subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences
subject: 70H20,70G45,70F25,37J60.

description: In this paper, we construct Hamilton-Jacobi equations for a great variety of mechanical systems (nonholonomic systems subjected to linear or affine constraints, dissipative systems subjected to external forces, time-dependent mechanical systems...). We recover all these, in principle, different cases using a unified framework based on skew-symmetric algebroids with a distinguished 1-cocycle. Several examples illustrate the theory.
description: 30 pages, 3 figures