cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Physical Conditions in the Narrow-Line Region of Markarian 3. II. Photoionization Modeling Results
Creators: name: Collins, Nicholas R.
name: Kraemer, Steven B.
name: Crenshaw, D. Michael
name: Bruhweiler, Frederick C.
name: Mélendez, Marcio
Publisher: name: arXiv
Year: 2009
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: We have examined the physical conditions in the narrow-line region (NLR) of the Seyfert 2 galaxy Markarian 3, using long-slit spectra obtained with the Hubble Space Telescope/Space Telescope Imaging Spectrograph and photoionization models. We find three components of photoionized gas in the NLR. Two of these components, characterized by emission lines such as [NeV] 3426 and [OIII] 5007, lie within the envelope of the bi-conical region described in our previous kinematic study. A component of lower ionization gas, in which lines such as [OII] 3727 arise, is found to lie outside the bi-cone. Each of these components is irradiated by a power-law continuum which is attenuated by intervening gas, presumably closer to the central source. The radiation incident upon the low ionization gas, external to the bi-cone, is much more heavily absorbed. These absorbers are similar to the intrinsic UV and X-ray absorbers detected in many Seyfert 1 galaxies, which suggests that the collimation of the ionizing radiation occurs in a circumnuclear wind, rather than a thick, molecular torus. We estimate the mass for the observed NLR emitting gas to be 2 million solar-masses. It is likely that Markarian 3 acquired this gas through an on-going interaction with the spiral galaxy UGC 3422.
description: 47 pages, 7 figures; accepted for publication in ApJ
Additional file 1 of Challenges and improvement needs in the care of patients with central diabetes insipidus
Creators: name: Teare, H.
name: Argente, J.
name: Dattani, M.
name: Leger, J.
name: Maghnie, M.
name: Sherlock, M.
name: Ali, G.-C.
name: Francombe, J.
name: Marjanovic, S.
Publisher: name: figshare
Year: 2022
Subjects: subject: Medicine
subject: 69999 Biological Sciences not elsewhere classified
subject: FOS: Biological sciences
subject: Science Policy
subject: 110309 Infectious Diseases
subject: FOS: Health sciences

description: Additional file 1: Methodology supplement.
Modelling of ship-bank interaction and ship squat for ship-handling simulation
Creators: name: Duffy, Jonathan
Publisher: name: University Of Tasmania
Year: 2023

description: This thesis reports on an investigation into the simulation of ship manoeuvring in restricted waters; in particular ship squat and ship-bank interaction. A time-domain mathematical model has been developed to predict unsteady squat and dynamic acceleration effects for a vessel travelling in non-uniform water depth. A quasi-steady approach was adopted, where the prediction at each time step is based on steady-state heave force and pitch moment in uniform water depth. A comprehensive set of model scale experiments was conducted to investigate squat in both uniform and non-uniform water depth. Regression analysis was performed on the uniform water depth test data to develop empirical equations for steady-state squat, which were used as input to the mathematical model. The equations apply to a full form vessel and are dependent on under keel clearance parameters, channel width parameters and depth Froude number. Empirical correction factors were also developed to estimate the effect of propulsion on squat. Good correlation was observed between predictions from the squat mathematical model and steady-state sinkage measurements for a wide range of water depth to draught ratios. Predictions from the mathematical model were also compared with unsteady sinkage measurements on a ship model travelling over a simplified ramp bank. The general trend of the predicted unsteady sinkage was reasonable, improving the realism of simulation for abrupt changes in water depth compared to predictions where acceleration effects in the vertical plane are neglected. However, the maximum unsteady sinkage was not always predicted accurately, which may be attributable to limitations and assumptions associated with the technique. A comprehensive model scale experiment program was conducted to investigate ship-bank interaction. The following parameters were systematically varied for three different hull forms: flooded bank height, water depth, bank slope, lateral ship to bank distance, vessel speed and vessel draught. The results from these experiments were used to develop a bank parameter to estimate the effects of lateral surface piercing and flooded banks. This parameter was utilised in regression analyses to develop empirical formulae for steady-state bank induced sway force and yaw moment. The empirical formulae were validated against independent model scale measurements from literature and showed reasonable agreement for a range of cases. The formulae were then incorporated into the existing mathematical model of the AMC ship-handling simulator. The quasi-steady technique was used to predict the path of a vessel for a real-life manoeuvre where bank induced yaw moment is used to aid a turn. The proposed bank effect simulation method was found to provide a satisfactory solution to the problem of ship-bank interaction simulation.
Real-space fluctuations of effective exchange integrals in high-Tc cuprates
Creators: name: Petit, Sébastien
name: Lepetit, Marie-Bernadette
Publisher: name: arXiv
Year: 2009
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: We present ab-initio calculations of effective magnetic exchange, $J$, as well as Hubbard parameters ($t$, $U$ and $δ\varepsilon$) as a function of the local distribution of doping atoms for the high-$T_c$ superconducting $\rm (Ca_xLa_{1-x})(Ba_{1.75-x}La_{0.25+x})Cu_3O_y$ family. We found that both the exchange and the energies of the magnetic orbitals are strongly dependant on the local dopant distribution, both through the induced modification of the apical oxygen location and of the induced local electrostatic potential. The $J$ real-space map, for a random distribution of dopants, positively compares with observed STS gap inhomogeneity maps. Similarly, the orbital energy fluctuations induce weak charge inhomogeneities on copper sites, that can be positively compared with the observed LDOS inhomogeneities. These results clearly support an extrinsic origin of both the gap inhomogeneities and LDOS.
Regeneration of supraspinal projections after spinal cord injury in the neonatal opossum, Monodelphis domestica
Creators: name: Fry, Elizabeth Jane
Publisher: name: University Of Tasmania
Year: 2023

description: The studies presented in this thesis define the developmental sequence of descending supraspinal projections in both control and spinally transected neonatal opossums using an axonal tracer (dextran amine) injected into the lumbar spinal cord at post-natal day (P) 7, P14, P21, P28, P35 and adulthood. All experiments were conducted in accordance with NHMRC guidelines and with the approval of the University of Tasmania Ethics (Animal) Committee. The numbers of retrogradely labelled neuronal cell bodies (indicating projections traced by the dye from the site of injection) were counted in brain sections from animals removed 4 days after injections. The time course of supraspinal projections reappearing across a complete mid thoracic spinal transection made at P7 was then compared to the normal developmental sequence after identical spinal injections in control animals. Supraspinal projections were found to traverse the injury site within one week of the operation and contributed in increasing numbers to lumbar projections across the lesion for up to 4 weeks post-lesion. Numbers of labelled neurons in adults were found to be much lower both for transected and uninjured, control animals. The distribution of neurons in different brain nuclei was similar to that of unlesioned control animals, thus projections appeared to emulate the normal sequence of development after transection. However, there were fewer projections to the lumbar spinal cord after a transection, as compared to control animals, indicating that while many axons were able to grow through an injury site, not all may persist until adulthood. A double-labelled paradigm was employed to determine whether any fibres growing across the injury site were regenerated from axons severed by the transection. Lumbar spinal injections of dextran amine - Oregon green, made at P4, identified a population of supraspinal projections that were severed at P7 by a thoracic spinal transection. A different dextran amine ‚ÄövÑvÆ rhodamine was injected caudal to the lesion site at P7, P14, P21, P28 and P35 to label fibres growing across the lesion site. Neuronal cell bodies found containing both dyes indicated pre-lesion labelled axons that were able to regenerate their severed processes back across the injury site to encounter the second dye. Regenerating fibres increased from approximately 2 % of axons labelled with the first dye at P14, up to approximately 30 % at P35. It appears that regeneration of severed axons does occur following neonatal spinal injury at least in the first 4 weeks post injury.
The Mass and Radius of the Neutron Star in EXO 1745-248
Creators: name: Ozel, Feryal
name: Guver, Tolga
name: Psaltis, Dimitrios
Publisher: name: arXiv
Year: 2008
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: Bursting X-ray binaries in globular clusters are ideal sources for measuring neutron star masses and radii, and hence, for determining the equation of state of cold, ultradense matter. We use time-resolved spectroscopic data from EXO 1745-248 during thermonuclear bursts that show strong evidence for photospheric radius expansion to measure the Eddington flux and the apparent surface area of the neutron star. We combine this with the recent measurement of the distance to the globular cluster Terzan 5, where this source resides, to measure the neutron star mass and radius. We find tightly constrained pairs of values for the mass and radius, which are centered around M=1.4 M_sun and R=11 km or around M=1.7 M_sun and R=9 km. These values favor nucleonic equations of state with symmetry energy that is relatively low and has a weak dependence on density.
description: Accepted for publication in ApJ
The development and study of materials for optoelectronic devices and sensors
Creators: name: Moore, Matthew Darren
name: 0000-0001-6401-6667
Publisher: name: The University of Texas at Austin
Year: 2018
Subjects: Optoelectronics
Organic electronics
Chemistry
Light-emitting electrochemical cells
Sensing
Iridium
Platinum
Host materials
Lanthanide luminescence

description: Luminescence is a property of materials that allows for the emission of photons when a given amount of energy is applied. The luminescent properties of both polymeric and small molecule materials can generally be controlled through rational design, allowing for the development of materials that can be used in a variety of applications (e.g. sensing, light emissive devices, photovoltaics, photochemistry, etc…). Several families of small molecule emissive materials were designed for use in light emitting electrochemical cells (LEECs). A set of iridium complexes was designed to promote rapid turn-on time in devices, as well as raise the LEEC’s external quantum efficiency (EQE). By systematically substituting mesityl groups onto a base iridium complex, the turn-on times were lowered from minutes to seconds for systems containing the new substituents. Furthermore, the EQE was raised from 0.45% to 1.38% for one material. The study of platinum-based emitters in LEEC devices has not been previously reported, thus it is of interest to determine if this subset of highly efficient emitters may behave in devices similarly to iridium complexes. A family of platinum complexes was synthesized and studies are ongoing to establish device behavior. Moreover, an all organic, ionic set of emissive small molecules was synthesized. Studies are similarly ongoing to determine device behavior. Sensing is also an important capability of some emissive materials. The sensitivity of particular materials to their environment is an attribute that can be utilized to design a sensor. By using a mixed lanthanide metal-organic-framework (MOF), the sensing of trace (<0.5%) water in organics was accomplished. How the systems are able to show such sensitivity was also examined to determine how to further improve upon the MOF’s sensing abilities. This same material was further used in a fingerprinting system that permits the rapid identification of unknown solvents.
The invertebrate cave fauna of Tasmania : ecology and conservation biology
Creators: name: Eberhard, Stefan
Publisher: name: University Of Tasmania
Year: 2023

description: The invertebrate cave fauna of Tasmania is reviewed, based on collections from more than 130 caves in 31 karst areas. These totals represent approximately 14% of the known caves and about one half of the cavernous karst areas in the State. The distributions, ecological and conservation status of all taxa are discussed. More than 150 species, representing some 130 families in five phyla were identified. Species in at least 34 genera can be classified as troglobites or stygobionts. The fauna includes rare species, and species which are phylogenetic relicts, or have Gondwanaland affinities. Many taxa are undescribed. More so than for mainland Australia, the Tasmanian cave fauna shows a pattern of similarity with the cave faunas of other glacial and periglacial regions such as New Zealand, Japan, United States and Europe. The disjunct distribution patterns shown by some genera of harvestmen and beetles support the Pleistocene-effect theory to explain the evolution of terrestrial troglobites. The cave stygobiont fauna includes species of syncarids, amphipods, heteriids, phreatoicids, flatworms and hydrobiid molluscs. At least the amphipod component of this fauna did not develop from hypogean ancestors, but probably colonised caves from adjacent surface waters. Tasmania has the richest cave faunal assemblages in temperate Australia, with more than 70 taxa, consisting of more than 15 cave obligate species, recorded from some karst systems. Non karstic caves, such as dolerite boulder caves, also contain troglobitic species. Geological structure directly affects cave species diversity and ecological complexity. There is a general relationship between cave size and density, and species richness. Size of the karst area, vertical relief of the limestone outcrop and the type of surface vegetation also influence biodiversity in caves. Some populations of cave invertebrates in Tasmania are 'vulnerable' or 'endangered', whilst others have recently become extinct. They are threatened by limestone quarrying, forestry operations, agricultural practises and recreation. The effect of quarry operations on Bradley Chestermans Cave include sedimentation, gross pollution and local extinction of aquatic fauna. Quarry run off has caused depletion of populations of aquatic snails in the Exit Cave system. Management requirements for Kubla Khan Cave include the protection of sensitive habitats from the impacts of cave visitors. Twenty eight sites of special conservation value are listed. Conservation and management initiatives for Tasmania are discussed, including collecting ethics, vulnerable habitats and species, and minimum impact caving techniques.
Phase diagram of the PrFeAsO$_{1-x}$F$_{x}$ superconductor
Creators: name: Rotundu, C. R.
name: Keane, D. T.
name: Freelon, B.
name: Wilson, S. D.
name: Kim, A.
name: Valdivia, P. N.
name: Bourret-Courchesne, E.
name: Birgeneau, R. J.
Publisher: name: arXiv
Year: 2009
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: The electronic phase diagram of PrFeAsO$_{1-x}$F$_{x}$ (0$\leq$x$\leq$0.225) has been determined using synchrotron X-ray powder diffraction, magnetization and resistivity measurements. The structural transition temperature is suppressed from 154 K to $\approx$120 K and the magnetic phase transitions of both iron and praseodymium ions are completely suppressed by x$\approx$0.08 fluorine doping, coinciding with the emergence of superconductivity. The optimal doping is x$\approx$0.15 when T$_{C}$=47 K, while the maximum solubility of fluorine in PrFeAsO$_{1-x}$F$_{x}$ is reached around x=0.22. The structural, magnetic and superconducting phase diagram is presented.
description: 6 pages, 6 figures
Infrared Signatures of Disrupted Minor Planets at White Dwarfs
Creators: name: Farihi, J.
name: Jura, M.
name: Zuckerman, B.
Publisher: name: arXiv
Year: 2009
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: Spitzer Space Observatory IRAC and MIPS photometric observations are presented for 20 white dwarfs with T < 20,000 K and metal-contaminated photospheres. A warm circumstellar disk is detected at GD 16 and likely at PG 1457-086, while the remaining targets fail to reveal mid-infrared excess typical of dust disks, including a number of heavily polluted stars. Extending previous studies, over 50% of all single white dwarfs with implied metal accretion rates dM/dt > 3e8 g/s display a warm infrared excess from orbiting dust; the likely result of a tidally-destroyed minor planet. This benchmark accretion rate lies between the dust production rates of 1e6 g/s in the solar system zodiacal cloud and 1e10 g/s often inferred for debris disks at main sequence A-type stars. It is estimated that between 1% and 3% of all single white dwarfs with cooling ages less than around 0.5 Gyr possess circumstellar dust, signifying an underlying population of minor planets.
description: 47 pages, accepted to ApJ
The Diversity and Similarity of Simulated Cold Dark Matter Halos
Creators: name: Navarro, Julio F.
name: Ludlow, Aaron
name: Springel, Volker
name: Wang, Jie
name: Vogelsberger, Mark
name: White, Simon D. M.
name: Jenkins, Adrian
name: Frenk, Carlos S.
name: Helmi, Amina
Publisher: name: arXiv
Year: 2008
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We study the mass, velocity dispersion, and anisotropy profiles of $Λ$CDM halos using a suite of N-body simulations of unprecedented numerical resolution (the {\it Aquarius Project}). Our analysis confirms a number of results claimed by earlier work, and clarifies a few issues where conflicting claims may be found in the recent literature. The spherically-averaged density profile becomes progressively shallower inwards and, at the innermost resolved radius, the logarithmic slope is $γ\equiv -$d$\lnρ/$d$\ln r \simlt 1$. Asymptotic inner slopes as steep as the recently claimed $ρ\propto r^{-1.2}$ are clearly ruled out. The radial dependence of $γ$ is well approximated by a power-law, $γ\propto r^α$ (the Einasto profile). The shape parameter, $α$, varies slightly but significantly from halo to halo, implying that the mass profiles of $Λ$CDM halos are not strictly universal: different halos cannot, in general, be rescaled to look identical. Departures from similarity are also seen in velocity dispersion profiles and correlate with those in density profiles so as to preserve a power-law form for the spherically averaged pseudo-phase-space density, $ρ/σ^3\propto r^{-1.875}$. Our conclusions are reliable down to radii below 0.4% of the virial radius, providing well-defined predictions for halo structure when baryonic effects are neglected, and thus an instructive theoretical template against which the modifications induced by the baryonic components of real galaxies can be judged.
description: Submitted to MNRAS. Minor revisions. Conclusions unchanged. Pictures, movies, and further information on the Aquarius Project may be found at http://www.mpa-garching.mpg.de/aquarius/
Homogeneous nucleation in supersaturated vapors of methane, ethane, and carbon dioxide predicted by brute force molecular dynamics
Creators: name: Horsch, Martin
name: Vrabec, Jadran
name: Bernreuther, Martin
name: Grottel, Sebastian
name: Reina, Guido
name: Wix, Andrea
name: Schaber, Karlheinz
name: Hasse, Hans
Publisher: name: arXiv
Year: 2009
Subjects: subject: Chemical Physics (physics.chem-ph)
subject: Computational Physics (physics.comp-ph)
subject: FOS: Physical sciences

description: Molecular dynamics (MD) simulation is applied to the condensation process of supersaturated vapors of methane, ethane, and carbon dioxide. Simulations of systems with up to a million particles were conducted with a massively parallel MD program. This leads to reliable statistics and makes nucleation rates down to the order of 10^30/(m^3 s) accessible to the direct simulation approach. Simulation results are compared to the classical nucleation theory (CNT) as well as the theory of Laaksonen, Ford, and Kulmala (LFK) which introduces a size dependence of the specific surface energy. CNT describes the nucleation of ethane and carbon dioxide excellently over the entire studied temperature range, whereas LFK provides a better approach to methane at low temperatures.
Additional file 1 of Anatomy education in US Medical Schools: before, during, and beyond COVID-19
Creators: name: Shin, Max
name: Prasad, Aman
name: Sabo, Graham
name: Macnow, Alexander S. R.
name: Sheth, Neil P.
name: Cross, Michael B.
name: Premkumar, Ajay
Publisher: name: figshare
Year: 2022
Subjects: subject: Sociology
subject: FOS: Sociology

description: Additional file 1. Survey Instrument.
Short Gamma Ray Bursts: marking the birth of black holes from coalescing compact binaries
Creators: name: Lazzati, Davide
name: Perna, Rosalba
Publisher: name: arXiv
Year: 2010
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: This contribution summarizes, as of early 2008, the observational and theoretical understanding of the origin, physics, and emission properties of short gamma-ray bursts in both electromagnetic and gravitational waves.
description: 19 pages, appeared in the book "Physics of Relativistic Objects in Compact Binaries: From Birth to Coalescence", Astrophysics and Space Science Library, edited by M. Colpi, P. Casella, V. Gorini, U. Moschella, and A. Possenti
The metallicity of the most distant quasars
Creators: name: Juarez, Y.
name: Maiolino, R.
name: Mujica, R.
name: Pedani, M.
name: Marinoni, S.
name: Nagao, T.
name: Marconi, A.
name: Oliva, E.
Publisher: name: arXiv
Year: 2009
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: We investigate the metallicity of the broad line region (BLR) of a sample of 30 quasars in the redshift range 46 quasars. The latter result is puzzling, since the minimum enrichment timescale of carbon is about 1 Gyr, i.e. longer than the age of the universe at z~6.
description: Accepted for publication in A&A Letters, replaced with published version, typos corrected
Generating functional analysis of complex formation and dissociation in large protein interaction networks
Creators: name: Coolen, A. C. C.
name: Rabello, S.
Publisher: name: arXiv
Year: 2009
Subjects: subject: Molecular Networks (q-bio.MN)
subject: Quantitative Methods (q-bio.QM)
subject: FOS: Biological sciences

description: We analyze large systems of interacting proteins, using techniques from the non-equilibrium statistical mechanics of disordered many-particle systems. Apart from protein production and removal, the most relevant microscopic processes in the proteome are complex formation and dissociation, and the microscopic degrees of freedom are the evolving concentrations of unbound proteins (in multiple post-translational states) and of protein complexes. Here we only include dimer-complexes, for mathematical simplicity, and we draw the network that describes which proteins are reaction partners from an ensemble of random graphs with an arbitrary degree distribution. We show how generating functional analysis methods can be used successfully to derive closed equations for dynamical order parameters, representing an exact macroscopic description of the complex formation and dissociation dynamics in the infinite system limit. We end this paper with a discussion of the possible routes towards solving the nontrivial order parameter equations, either exactly (in specific limits) or approximately.
description: 14 pages, to be published in Proc of IW-SMI-2009 in Kyoto (Journal of Phys Conference Series)
Spin crossover: the quantum phase transition induced by high pressure
Creators: name: Nesterov, A. I.
name: Ovchinnikov, S. G.
Publisher: name: arXiv
Year: 2009
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Other Condensed Matter (cond-mat.other)
subject: FOS: Physical sciences

description: The relationship is established between the Berry phase and spin crossover in condensed matter physics induced by high pressure. It is shown that the geometric phase has topological origin and can be considered as the order parameter for such transition.
description: 4 pages, 3 figures
Change Detection from High Resolution Satellite Imagery
Creators: name: Fu, Xiao Ming
Publisher: name: University Of Tasmania
Year: 2023

description: This study analyses whether change detection techniques can identify vegetation changes in Macquarie Island, using high resolution Quickbird satellite imagery; it also takes fuzzy aspects of changes into account in order to explore and discover the uncertainty in the change detection outputs. As Macquarie Island has been severely affected by rabbit grazing, this study probes into the vegetation changes on it by different change detection techniques, with a view to help people make proper management strategies to protect Macquarie Island's unique environment. Besides, because of its geographically isolated location, monitoring changes on the Island is most efficiently achieved using satellite imagery. Traditional change detection techniques can distinguish change from no change in a binary way; incorporating fuzziness is a new approach for change detection as it extends the binary results to the fuzzy results by revealing the transitional nature of the natural environment in the most real way, thus a more understandable interpretation of the change results can be available. Therefore, fuzzy change detection techniques have been investigated in this study. Two Quickbrid images were used as the input in this study; one was acquired in March 2005 and another was acquired in March 2007. In this study, six change detection techniques( with three in each group) have been implemented, namely, normalized difference vegetation index (NDVI), change vector analysis (CVA); postclassification change detection, as one group; and fuzzy normalized difference vegetation index (fuzzy NDVI), fuzzy change vector analysis (fuzzy CVA), fuzzy post-classification change detection, as the other. For the fuzzy group, fuzzy NDVI and fuzzy CVA were generated by fuzzy membership functions, and fuzzy postclassification change detection was generated by comparing with fuzzy classification results. The support vector machine (SVM) was used as the classifier. The study reported that fuzzy change detection not only can identify the changes in the Macquarie Island, but can better reveal the gradual process of change in a specific time period. Nevertheless, it does not improve the accuracy, compared with the traditional methods, mainly because that the results of fuzzy change detection are based on that of the binary change detection.
Electromagnetic interactions in Halo Effective Field Theory
Creators: name: Higa, Renato
Publisher: name: arXiv
Year: 2010
Subjects: subject: Nuclear Theory (nucl-th)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: Nuclear Experiment (nucl-ex)
subject: FOS: Physical sciences

description: After a brief discussion of effective field theory applied to nuclear clusters, I concentrate on the inclusion of two particular aspects, namely, narrow resonances and electromagnetic interactions. As examples of applications, I present the details of our studies on alpha-alpha and proton-alpha scattering.
description: 11 pages, 5 figures, lead parallel talk given at the 19th Intl. IUPAP Conf. on Few-Body Problems in Physics, Bonn, Germany, Aug.31-Sep.5 2009
Additional file 1 of Maternal adverse childhood experiences and their association with preterm birth: secondary analysis of data from universal health visiting
Creators: name: Hardcastle, Katie
name: Ford, Kat
name: Bellis, Mark A.
Publisher: name: figshare
Year: 2022
Subjects: subject: Medicine
subject: Cell Biology
subject: Pharmacology
subject: Biotechnology
subject: Sociology
subject: FOS: Sociology
subject: Cancer
subject: Science Policy
subject: 111714 Mental Health
subject: FOS: Health sciences

description: Additional file 1: Table A1. Bivariate association between individual ACEs and preterm birth.
'Troubled joy' : The paradox of the female figure in Nathaniel Hawthorne's fiction.
Creators: name: Gaby, Rosemary Sarah
Publisher: name: University Of Tasmania
Year: 2023

description: The figure of woman is of central importance to the whole presentation of meaning in Nathaniel Hawthorne's fiction. In comparison to other writers of the nineteenth century, and especially his male compatriots, Hawthorne grants the female figure a remarkable degree of prominence and significance in his works. His presentation of woman is noteworthy not only for the depth and subtlety with which his female characters are portrayed but also for the unique way in which he manipulates the standard female stereotypes to explore through symbolic suggestion the whole purpose of woman's existence and the foundations of her relations with man. This thesis attempts to show how Hawthorne's symbolic method consistently points towards the importance of accepting women as complex, multi-dimensional human beings. Paradoxically, in Hawthorne's language, this acceptance means that women can fulfil a super-human purpose. They operate as a unifying force in his works, providing the key to harmony and the means by which man can re-establish his relations with man. My first chapter considers the contemporary context of Hawthorne's work, the role of woman in nineteenth century America, the way that role was perceived in fact and fiction, and the kinds of influence which were likely to affect Hawthorne's personal vision of womanhood. Chapter II examines the women of Hawthorne's short stories, the ways in which he develops a distinct 'family' of characters who reappear throughout his corpus, and the symbolic language which informs his whole presentation of woman's role. Chapters III, IV and V deal respectively with The Scarlet Letter, The Blithedale Romance, and The Marble Faun, concentrating specifically upon the female characters - their significance in these works and in relation to Hawthorne's vision as a whole. My conclusion attempts to draw the threads together, to show how the very individuality of Hawthorne's dark ladies and fair maidens is representative of a common promise of 'troubled joy', and to show how Hawthorne applied this promise to the future of his country and of the whole human race.
A versatile platform for intracellular delivery of various macromolecules using a pH-responsive, biomimetic polymer
Creators: name: Kopytynski, Michal Tomasz
Publisher: name: Imperial College London
Year: 2018

description: The physical barrier posed by the plasma membrane greatly restricts the potential of intracellular delivery of macromolecules. Currently available delivery methods suffer from various limitations, including low delivery efficiency or high cytotoxicity. To overcome these issues, stimuli-responsive polymers such as the bio-inspired, pH-responsive PP50 polymer, comprising a poly-L-lysine isophthalamide backbone with hydrophobic L-phenylalanine grafts can be used. In mildly acidic environments, PP50 can permeabilise the cell membrane overcoming the problem of payload entrapment in the endosomes and allowing for efficient delivery of molecules into the cell interior. The work presented herein demonstrates that PP50 is capable of delivering various macromolecular payloads in vitro, such as different-sized dextrans, green fluorescent protein and the apoptotic peptide Bim by simple co-incubation with the desired cargo at pH 6.5. The delivery process was fast, non-toxic and compatible with multiple cell lines tested, including adherent and suspension cell lines, primary human mesenchymal stem cells as well as cells grown as spheroids. In addition, peptide delivery by co-incubation with PP50 was at least 3 times more effective than delivery using other common delivery methods, including poly(ethyleneimine), cell penetrating peptides and electroporation. In addition, novel conjugates of PP50 and different model and functional payloads were developed using a cleavable crosslinker to enable in vivo delivery and release. Model fluorescent payloads such as a peptide-sized PEG and green fluorescent protein were delivered to HeLa cells following conjugation with PP50. Finally, Bim conjugated to PP50 was shown to retain its apoptotic effect in vitro and was demonstrated to be non-immunogenic and well tolerated in a mouse model and exhibited preferential tumour accumulation. Our findings suggest that PP50-mediated payload delivery is a versatile method allowing delivery of various payloads to many different cell lines and can find many potential uses both in vitro and in vivo.
The 2007 outburst of the X-ray binary XTE J1856+053
Creators: name: Sala, G.
name: Greiner, J.
name: Ajello, M.
name: Primak, N.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: On 28 February 2007 a new outburst of the previously known transient source XTE J1856+053 was detected with RXTE/ASM. We present here the results of an XMM-Newton (0.5-10.0 keV) Target of Opportunity observation performed on 14 March 2007, aimed at constraining the mass of the compact object in this X-ray binary and determining its main properties. The EPIC-pn camera was used in Timing mode and its spectrum fit together with the RGS data. IR observations with GROND at the 2.2 m telescope in La Silla provide further information on the system. The X-ray light curve shows that both the 1996 and the 2007 outbursts had two peaks. The X-ray spectrum is well fit with a thermal accretion disk model, with kT=0.75+/-0.01 keV and foreground absorption N_H=4.5(+/-0.1)E22 cm**-2. The low disk temperature favours a black-hole as accreting object, with an estimated mass in the range 1.3-4.2 M_sun. From the IR upper limits we argue that XTE J1856+053 is a low mass X-ray binary. We estimate the orbital period of the system to be between 3 and 12 hours.
Additional file 2 of Maternal adverse childhood experiences and their association with preterm birth: secondary analysis of data from universal health visiting
Creators: name: Hardcastle, Katie
name: Ford, Kat
name: Bellis, Mark A.
Publisher: name: figshare
Year: 2022
Subjects: subject: Medicine
subject: Cell Biology
subject: Pharmacology
subject: Biotechnology
subject: Sociology
subject: FOS: Sociology
subject: Cancer
subject: Science Policy
subject: 111714 Mental Health
subject: FOS: Health sciences

description: Additional file 2: Table A2. Inter-correlations between individual ACEs.
Additional file 3 of Maternal adverse childhood experiences and their association with preterm birth: secondary analysis of data from universal health visiting
Creators: name: Hardcastle, Katie
name: Ford, Kat
name: Bellis, Mark A.
Publisher: name: figshare
Year: 2022
Subjects: subject: Medicine
subject: Cell Biology
subject: Pharmacology
subject: Biotechnology
subject: Sociology
subject: FOS: Sociology
subject: Cancer
subject: Science Policy
subject: 111714 Mental Health
subject: FOS: Health sciences

description: Additional file 3: Table A3. Logistic regression of ACE exposure, demographics and their association with preterm birth among healthy* mothers.
Structure determination of a brownmillerite Ca2Co2O5 thin film by Precession Electron Diffraction
Creators: name: Boullay, P.
name: Dorcet, V.
name: Perez, O.
name: Grygiel, C.
name: Prellier, W.
name: Mercey, B.
name: Hervieu, M.
Publisher: name: arXiv
Year: 2009
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Calcium cobaltite thin films with a ratio Ca/Co=1 were grown on (101)-NdGaO3 substrate by the pulsed laser deposition technique. The structure of the deposited metastable phase is solved using a precession electron diffraction 3D dataset recorded from a cross-sectional sample. It is shown that an ordered oxygen-deficient Ca2Co2O5+d perovskite of the brownmillerite-type with lattice parameters a= 0.546nm, b=1.488nm and c=0.546nm (SG: Ibm2) has been stabilized using the substrate induced strain. The structure and microstructure of this metastable cobaltite is further discussed and compared to related bulk materials based on our transmission electron microscopy investigations
description: 13 pages, 10 figures, 2 tables, accepted in Phys. Rev. B
Complexity preferences and preference shifts in rats as a function of early visual experience
Creators: name: Creighton, Dianne Elizabeth
Publisher: name: University of British Columbia
Year: 2011

description: Preferences were determined for rats as they explored three differentially complex visual stimuli over a series of trials. Early visual experiences were manipulated by differential enrichment periods in the first of two experiments in the study and by differential rearing conditions in the second experiment. Results were evaluated in terms of their support for the following predictions from the theory of Dember and Earl (1957): 1. When experience with stimuli differing in visual complexity leads to preferences for stimuli of different complexities, high-complexity experienced organisms will prefer more complex stimuli than low-complexity experienced organisms. 2. When shifts in preference between trials are expressed, the direction of such shifts will be towards increased complexity. 3. When rate and/or degree of shift in complexity preferences differ between groups receiving different levels of visual complexity experience, high-complexity exposed groups will show the faster and/or greater degree of shift to higher complexities. Support for these predictions was found. Suggestions for improvement of the Dember and Earl model and of the techniques for investigating it were discussed.
Unidad gráfica basada en mapas de teselas (3) - Tabla de Nombres (NES PPU)
Creators: name: Machado, Felipe
Publisher: name: Zenodo
Year: 2021
Subjects: Gráficos basados en teselas
Unidad de procesamiento gráfico
Picture Processing Unit
PPU
NES
Nintendo Entertainment System
Arquitectura de computadores
Diseño de circuitos digitales
videojuegos de 8 bits
FPGA

description: En esta presentación se explican cómo se implementa en una memoria la Tabla de Nombres de la PPU (Picture Processing Unit) de la NES (Nintendo Entertainment System). La tabla de nombres implementa los gráficos del fondo (background). Se explican también los cálculos que hay que realizar para acceder a las direcciones de memoria de la Tabla de Nombres La unidad gráfica de la NES (la PPU) implementa los gráficos a partir de mapas de teselas. Estos gráficos se utilizaban en las consolas de videojuegos tercera generación, también conocidas como la era de consolas de 8 bits. Videos disponibles: Parte A: teoría https://youtu.be/PBDLakIiw2c Parte B: implementación en FPGA https://youtu.be/Twvdh8xt7a4 El diseño de ejemplo está disponible: https://github.com/felipe-m/img_rom/tree/master/examples/nesrom/projects/nametable/smario La versión 1.1 incluye las imágenes del segundo video.
description: {"references": ["Machado, Felipe et al, Dise\u00f1o de sistemas digitales con VHDL http://hdl.handle.net/10115/5700"]}
Understanding the role of T follicular helper cells in the development and maintenance of chronic allergic airway disease
Creators: name: Uwadiae, Faith Izoduwa
Publisher: name: Imperial College London
Year: 2018

description: T follicular helper cells (TFH) are critical regulators of antibody production and have been implicated in several diseases of abnormal antibody generation. However, the role that TFH play in the pathogenesis of allergic asthma is little understood. Therefore the aim of this thesis was to further examine their contribution using clinical relevant mouse models of chronic allergic airway disease (AAD). During chronic AAD TFH were first found in the mediastinal lymph node (mLN), and with further allergen exposure in the spleen and the lung tissue. TFH induced during chronic AAD were bona fide, tissue resident TFH which expressed CXCR5, PD1, ICOS, Bcl-6 and produced IL-4 and IL-21. Interestingly, lung TFH were more skewed towards a TFH17 phenotype and also expressed Rorgt, CCR6 and produced IL-17A. TFH were accompanied by germinal centre (GC) B cells, memory B cells and plasma cells, and the generation of these cellular populations and allergic specific antibodies was completely dependent on TFH. Large tertiary lymphoid structures (TLS), complete with GCs were also found in lungs and their formation was partly dependent on cellular recruitment to the lungs, IL-17A driven B cell aggregation and TFH. The lungs were an active site of class switching to IgA, in addition to IgE and IgG1, suggesting the lungs to be a local site of both protective and pathogenic antibody production. TFH could be therapeutically targeted during established chronic AAD by administration of ICOS-L blocking antibodies. This reduction in TFH populations was accompanied by decreased GC B cells, allergen specific IgE, and improved hallmark AAD symptoms. Interestingly, TFH were also found to be regulators of chronic AAD, and their absence at the inception of chronic AAD led to enhanced type 2 biased inflammation and worsened airway function. Collectively, these findings show TFH to be important regulators and drivers of chronic AAD.
Exploring elastohydrodynamic lubrication using finite-volume computational modelling techniques
Creators: name: Lee, Damon
Publisher: name: Imperial College London
Year: 2018

description: Elastohydrodynamic lubrication is a regime of lubrication that occurs in lubricated rolling-sliding non-conformal contacts, such as those in rolling bearings and gears. Under EHL, the solid surfaces are completely separated by a lubricant film that is built up through a hydrodynamic action and the fluid pressures are sufficiency high to cause significant elastic deformation of the solids. EHL is typically modelled using numerical solutions to some form of Reynolds equation. These methods can be used to simulate EHL to predict variables such as friction, film thickness and temperature rise. The Reynolds equation is derived from the general fluid flow equations by assuming certain gradients are negligible. In contrast, Computational Fluid Dynamics (CFD) methods can solve the general fluid flow and heat transfer equations fully. Advantages include modelling the full convective heat transfer effects at the contact entrance, extension of the simulation domain further than Reynolds models and truer simulated multiphase flow. Comparisons between the simulation methods are very limited, with only a few papers that compare CFD solutions to a Reynolds models under conditions that show solution differences. This project is aimed at investigating CFD simulation of EHL, chiefly in situations where the assumptions of Reynolds derived models of EHL are tentative or incorrect by comparing Reynolds derived EHL models to a CFD model parametrically. In developing and using the CFD model to gain new insight into EHL the CFD model solutions were compared with experimental results for film thickness profile at varying entrainment speeds and slide-roll ratios (SRRs). The CFD model was also used to study the thermal effects in EHL in relation to Archards temperature rise equation inside the contact, as well as the thermal effects outside of the contact. Thermal solution comparisons between a thermal modified Reynolds model and the CFD model at varying SRR (0–1.8) and dimensionless entrainment (U = 1 × 10−10–5 × 10−10) were carried out and finally parametric comparisons between CFD predicted and literature film thickness reduction factors were made. Results show that at moderate conditions the solutions obtained using these two modelling strategies are nearly identical in terms of film thickness (Thermal loading parameter below 1); however, at high viscosity, high entrainment and high SRR, CFD solutions differ in predicted film thickness and/or friction from Reynolds-based models due to terms neglected in the Reynolds equation derivation. In general CFD results predict higher temperature rise due to thermal convective effects at the contact inlet.
Supersonic Cloud Collision-II
Creators: name: Anathpindika, S. V.
Publisher: name: arXiv
Year: 2009
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: In this second paper of the sequel of two papers, we further investigate the problem of molecular cloud (MC) collision. Anathpindika (2009) (hereafter paper I) considered highly supersonic cloud collisions and examined the effect of bending and shearing instabilities on the shocked gas slab. We now consider moderately supersonic cloud collisions (precollision cloud velocities of order 1.2 km s$^{-1}$ to 2.4 km s$^{-1}$). In the current paper, we present five SPH simulations of fast head-on and/or off-centre cloud collisions to study the evolution of ram pressure confined gas slabs. The relevant thermodynamics in the problem is simplified by adopting a simple barytropic equation of state. We explore the parameter space by varying the pre-collision velocity and the temperature of the post collision gas slab. The temperature in a pressure compressed gas slab is crucial to its dynamical evolution. The pressure confined gas slabs become Jeans unstable if the average sound crossing time, $t_{cr}$, of putative clumps condensing out of them, is much larger than their free fall time, $t_{ff}$. Self gravitating clumps may spawn multiple/larger $N$-body star clusters. Warmer gas slabs are unlikely to fragment and may end up as diffuse gas clouds.
description: 10pages, 8 figures, 1 table; A&A accepted Typographical errors have been attempted to and the original manuscript has been trimmed. The results however, remain unchanged. The pictures in this version are of considerably lower resolution in order to minimise their sizes
Criticisms of modelling packet traffic using long-range dependence
Creators: name: Clegg, Richard G.
name: Landa, Raul
name: Rio, Miguel
Publisher: name: arXiv
Year: 2009
Subjects: subject: Networking and Internet Architecture (cs.NI)
subject: Performance (cs.PF)
subject: FOS: Computer and information sciences

description: This paper criticises the notion that long-range dependence is an important contributor to the queuing behaviour of real Internet traffic. The idea is questioned in two different ways. Firstly, a class of models used to simulate Internet traffic is shown to have important theoretical flaws. It is shown that this behaviour is inconsistent with the behaviour of real traffic traces. Secondly, the notion that long-range correlations significantly affects the queuing performance of traffic is investigated by destroying those correlations in real traffic traces (by reordering). It is shown that the longer ranges of correlations are not important except in one case with an extremely high load.
description: Presented at the PMECT 2009 workshop (part of ICCCN 2009) in San Francisco