cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Searches for Prompt $R$-Parity-Violating Supersymmetry at the LHC
Creators: name: Redelbach, Andreas
Publisher: name: arXiv
Year: 2015
Subjects: subject: High Energy Physics - Experiment (hep-ex)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: Searches for supersymmetry (SUSY) at the LHC frequently assume the conservation of $R$-parity in their design, optimization and interpretation. In the case that $R$-parity is not conserved, constraints on SUSY particle masses tend to be weakened with respect to $R$-parity-conserving models. We review the current status of searches for $R$-parity-violating (RPV) supersymmetry models at the ATLAS and CMS experiments, limited to 8 TeV search results published or submitted for publication as of the end of March 2015. All forms of renormalisable RPV terms leading to prompt signatures have been considered in the set of analyses under review. Discussing results for searches for prompt R-parity-violating SUSY signatures summarizes the main constraints for various RPV models from LHC Run I and also defines the basis for promising signal regions to be optimized for Run II. In addition to identifying highly constrained regions from existing searches, also gaps in the coverage of the parameter space of RPV SUSY are outlined.
Multi-tiered early reading supports predictive of student reading outcomes
Creators: name: Buechler, Tamar Jennifer
Publisher: name: No Publisher Supplied
Year: 2023

description: Although there is a large body of research on effective early reading instructional practices, schools continue to implement instruction and intervention that is not aligned to the science. Over the past 25 years, a Multi-Tiered System of Supports (MTSS) framework has emerged as a leading framework for advancing the reading skill development of all students. However, little is known about which aspects/components of its implementation are required to advance students’ reading outcomes. This study utilized multiple regression examine the degree to which aspects/components of MTSS implementation (universal screening, explicit/direct instruction, consistency in tier 1 instruction, and individualized instruction in tier 2 interventions) predict students’ early reading performance as measured by benchmark attainment on DIBELS Nonsense Word Fluency and Oral Reading Fluency. Predictors and dependent measures were coded at the grade level for 53 schools, with a total of 166 cases representing each grade level across participating schools. Results indicated that consistency in the implementation of foundational tier 1 reading skill instruction, as well as the use of skill-focused grouping for tier 2 intervention, were predictive of student reading success. Although research supports the value of skill-focused CBM universal screening assessments and providing explicit, direct reading instruction, neither screening assessment use nor the provision of explicit and direct instruction were found to be a significant predictor of student reading success. Study limitations that may explain the lack of significant findings for these latter predictors, along with recommendations for future research, are discussed
Alignment of interstellar grains by mechanical torques: suprathermally rotating Gaussian random spheres
Creators: name: Das, Indrajit
name: Weingartner, Joseph C.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: Collisions of gas particles with a drifting grain give rise to a mechanical torque on the grain. Recent work by Lazarian & Hoang showed that mechanical torques might play a significant role in aligning helical grains along the interstellar magnetic field direction, even in the case of subsonic drift. We compute the mechanical torques on 13 different irregular grains and examine their resulting rotational dynamics, assuming steady rotation about the principal axis of greatest moment of inertia. We find that the alignment efficiency in the subsonic drift regime depends sensitively on the grain shape, with more efficient alignment for shapes with a substantial mechanical torque even in the case of no drift. The alignment is typically more efficient for supersonic drift. A more rigorous analysis of the dynamics is required to definitively appraise the role of mechanical torques in grain alignment.
description: 30 pages, 8 figures
Temporal Offsets between Maximum CME Speed Index and Solar, Geomagnetic, and Interplanetary Indicators during Solar Cycle 23 and the Ascending Phase of Cycle 24
Creators: name: Özgüç, A.
name: Kilcik, A.
name: Georgieva, K.
name: Kirov, B.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: Space Physics (physics.space-ph)
subject: FOS: Physical sciences

description: On the basis of morphological analysis of yearly values of the maximum CME (coronal mass ejection) speed index, the sunspot number and total sunspot area, sunspot magnetic field, and solar flare index, the solar wind speed and interplanetary magnetic field strength, and the geomagnetic Ap and Dst indices, we point out the particularities of solar and geomagnetic activity during the last cycle 23, the long minimum which followed it and the ascending branch of cycle 24. We also analyze temporal offset between the maximum CME speed index and the above-mentioned solar, geomagnetic, and interplanetary indices. It is found that this solar activity index, analyzed jointly with other solar activity, interplanetary parameters, and geomagnetic activity indices, shows a hysteresis phenomenon. It is observed that these parameters follow different paths for the ascending and the descending phases of solar cycle 23. It is noticed that the hysteresis phenomenon represents a clue in the search for physical processes responsible for linking the solar activity to the near-Earth and geomagnetic responses.
description: Accepted for publication by Solar Physics
Higgs naturalness and the scalar boson proliferation instability problem
Creators: name: Wells, James D.
Publisher: name: arXiv
Year: 2016
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: Sensitivity to the square of the cutoff scale of quantum corrections of the Higgs boson mass self-energy has led many authors to conclude that the Higgs theory suffers from a naturalness or fine-tuning problem. However, speculative new physics ideas to solve this problem have not manifested themselves yet at high-energy colliders, such as the Large Hadron Collider at CERN. For this reason, the role of naturalness as a guide to theory model-building is being severely questioned. Most attacks suggest that one should not resort to arguments involving gravity, which is a much less understood quantum field theory. Another line of attack is against the assumption that there exists a multitude of additional heavy states specifically charged under the Standard Model gauge symmetries. Nevertheless, if we give ground on both of these assaults on naturalness, what remains is a naturalness concern over the prospect of numerous additional spin-zero scalar states in nature. The proliferation of heavy scalars generically destabilizes the Higgs boson mass, raising it to the highest and most remote scalar mass values in nature, thus straining the legitimacy of the Standard Model. The copious use of extra scalars in theory model building, from explaining flavor physics to providing an inflationary potential and more, and the generic expectation of extra scalar bosons in nature argues for the proliferation instability problem being the central concern for naturalness of the Standard Model. Some approaches to solving this problem are presented.
description: 15 pages, Interdisciplinary Workshop on the Epistemology of the LHC, University of South Caroline (25-26 April 2014), Synthese, 10 December 2014
Why the aspect ratio? Shape equivalence for the extinction spectra of gold nanoparticles
Creators: name: Constantin, Doru
Publisher: name: arXiv
Year: 2016
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: Soft Condensed Matter (cond-mat.soft)
subject: FOS: Physical sciences

description: We compare the light extinction spectra of elongated gold nanoparticles with different shapes (cylinder, spherocylinder and ellipsoid) and sizes of 10 to 100~nm. We argue that the equivalence of the various moments of mass distribution is the natural comparison criterion -rather than the length-to-diameter (aspect) ratio generally used in the literature- and that it leads to better spectral correspondence between the various shapes.
The Sloan Digital Sky Survey Reverberation Mapping Project: An Investigation of Biases in CIV Emission-Line Properties
Creators: name: Denney, K. D.
name: Horne, Keith
name: Brandt, W. N.
name: Ho, Luis C.
name: Peterson, B. M.
name: Richards, Gordon T.
name: Shen, Yue
name: Trump, J. R.
name: Ge, J.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: We investigate the dependence on data quality of quasar properties measured from the CIV emission line region at high redshifts. Our measurements come from 32 epochs of Sloan Digital Sky Survey (SDSS) Reverberation Mapping Project spectroscopic observations of 482 z>1.46 quasars. We compare the differences between measurements made from the single-epoch and coadded spectra, focusing on the CIV emission line because of its importance for studies of high-redshift quasar demographics and physical properties, including black hole masses. In addition to statistical errors increasing (by factors of ~2-4), we find increasing systematic offsets with decreasing S/N. The systematic difference (measurement uncertainty) in our lowest S/N (<5) subsample between the single-epoch and coadded spectrum (i) CIV equivalent width is 17A (31A), (ii) centroid wavelength is <1A (2A), and fractional velocity widths, Delta V/V, characterized by (iii) the line dispersion, sigma_l, is 0.104 (0.12), and (iv) the mean absolute deviation (MAD) is 0.072 (0.11). These remain smaller than the 1-sigma measurement uncertainties for all subsamples considered. The MAD is found to be the most robust line-width characterization. Offsets in the CIV full-width at half maximum (FWHM) velocity width and the CIV profile characterized by FWHM/sigma_l are only smaller than the statistical uncertainties when S/N>10, although offsets in lower S/N spectra exceed the statistical uncertainties by only a factor of ~1.5. Characterizing the CIV line profile by the kurtosis is the least robust property investigated, as the median systematic coadded--single-epoch measurement differences are larger than the statistical uncertainties for all S/N subsamples.
description: 13 pages, 9 figures, and 2 tables; submitted to ApJ; v2 fixes affiliation and acknowledgement typos
The role of ets-1 and ets-2 in mammalian development
Creators: name: Leahey., Sarah Mary
Publisher: name: Monash University
Year: 2021

description: This thesis was scanned from the print manuscript for digital preservation and is copyright the author.
 Researchers can access this thesis by asking their local university, institution or public library to
 make a request on their behalf. Monash staff and postgraduate students can use the link in the References field.
Semi-Analytic Galaxy Evolution (SAGE): Model Calibration and Basic Results
Creators: name: Croton, Darren J.
name: Stevens, Adam R. H.
name: Tonini, Chiara
name: Garel, Thibault
name: Bernyk, Maksym
name: Bibiano, Antonio
name: Hodkinson, Luke
name: Mutch, Simon J.
name: Poole, Gregory B.
name: Shattow, Genevieve M.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: This paper describes a new publicly available codebase for modelling galaxy formation in a cosmological context, the "Semi-Analytic Galaxy Evolution" model, or SAGE for short. SAGE is a significant update to that used in Croton et al. (2006) and has been rebuilt to be modular and customisable. The model will run on any N-body simulation whose trees are organised in a supported format and contain a minimum set of basic halo properties. In this work we present the baryonic prescriptions implemented in SAGE to describe the formation and evolution of galaxies, and their calibration for three N-body simulations: Millennium, Bolshoi, and GiggleZ. Updated physics include: gas accretion, ejection due to feedback, and reincorporation via the galactic fountain; a new gas cooling--radio mode active galactic nucleus (AGN) heating cycle; AGN feedback in the quasar mode; a new treatment of gas in satellite galaxies; and galaxy mergers, disruption, and the build-up of intra-cluster stars. Throughout, we show the results of a common default parameterization on each simulation, with a focus on the local galaxy population.
description: 15 pages, 9 figures, accepted for publication in ApJS. SAGE is a publicly available codebase for modelling galaxy formation in a cosmological context, available at https://github.com/darrencroton/sage Questions and comments can be sent to Darren Croton: dcroton@astro.swin.edu.au
AMSOM: Adaptive Moving Self-organizing Map for Clustering and Visualization
Creators: name: Spanakis, Gerasimos
name: Weiss, Gerhard
Publisher: name: arXiv
Year: 2016
Subjects: subject: Artificial Intelligence (cs.AI)
subject: Neural and Evolutionary Computing (cs.NE)
subject: FOS: Computer and information sciences

description: Self-Organizing Map (SOM) is a neural network model which is used to obtain a topology-preserving mapping from the (usually high dimensional) input/feature space to an output/map space of fewer dimensions (usually two or three in order to facilitate visualization). Neurons in the output space are connected with each other but this structure remains fixed throughout training and learning is achieved through the updating of neuron reference vectors in feature space. Despite the fact that growing variants of SOM overcome the fixed structure limitation they increase computational cost and also do not allow the removal of a neuron after its introduction. In this paper, a variant of SOM is proposed called AMSOM (Adaptive Moving Self-Organizing Map) that on the one hand creates a more flexible structure where neuron positions are dynamically altered during training and on the other hand tackles the drawback of having a predefined grid by allowing neuron addition and/or removal during training. Experiments using multiple literature datasets show that the proposed method improves training performance of SOM, leads to a better visualization of the input dataset and provides a framework for determining the optimal number and structure of neurons.
description: ICAART 2016 accepted full paper
Wave packet construction in three-dimensional quantum billiards: Visualizing the closed orbit, collapse and revival of wave packets in the cubical billiard
Creators: name: Kaur, Maninder
name: Arora, Bindiya
name: Main, M.
Publisher: name: arXiv
Year: 2015
Subjects: subject: Atomic Physics (physics.atom-ph)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We examine the dynamical evolution of wave packets in a cubical billiard where three quantum numbers ($n_x,n_y,n_z$) determine its energy spectrum and consequently its dynamical behavior. We have constructed the wave packet in the cubical billiard and have observed its time evolution for various closed orbits. The closed orbits are possible for certain specific values of quantum numbers ($n_x,n_y,n_z$) and initial momenta ($k_x,k_y,k_z$). We observe that a cubical billiard exhibits degenerate energy levels and the path lengths of the closed orbits for these degenerate energy levels are identical. In spite of the identical path lengths, the shapes of the closed orbits for degenerate levels are different and depend upon angles $θ$ and $ϕ$ which we term as the sweep and the elevation angle respectively. These degenerate levels owe their origin to the symmetries prevailing in the cubical billiard and degenerate levels disappear completely or partially for a parallelepiped billiard as the symmetry breaks due to commensurate or incommensurate ratio of sides.
description: Kindly contact authors (arorabindiya@gmail.com) for graphs and videos of the results
Refocusing two qubit gates with measurements for trapped ions
Creators: name: Gefen, Tuvia
name: Cohen, Daniel
name: Cohen, Itsik
name: Retzker, Alex
Publisher: name: arXiv
Year: 2016
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Dynamical decoupling techniques are the method of choice for increasing gate fidelities. While these methods have produced very impressive results in terms of decreasing local noise and increasing the fidelities of single qubit operations, dealing with the noise of two qubit gates has proven more challenging. The main obstacle is that the noise time scale is shorter than the two qubit gate itself so that refocusing methods do not work. We present a measurement and feedback based method to refocus two qubit gates which cannot be refocused by conventional methods. We analyze in detail this method for an error model which is relevant for trapped ions quantum information.
A SUSY Inspired Simplified Model for the 750 GeV Diphoton Excess
Creators: name: Gabrielli, E.
name: Kannike, K.
name: Mele, B.
name: Raidal, M.
name: Spethmann, C.
name: Veermäe, H.
Publisher: name: arXiv
Year: 2015
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: The evidence for a new singlet scalar particle from the 750 GeV diphoton excess, and the absence of any other signal of new physics at the LHC so far, suggest the existence of new coloured scalars. To study this possibility, we propose a supersymmetry inspired simplified model, extending the Standard Model with a singlet scalar and with heavy scalar fields carrying both colour and electric charges -- the `squarks'. To allow the latter to decay, and to generate the dark matter of the Universe, we also add a neutral fermion to the particle content. We show that this model provides a two-parameter fit to the observed diphoton excess consistently with cosmology, while the allowed parameter space is bounded by the consistency of the model. In the context of our simplified model this implies the existence of other supersymmetric particles accessible at the LHC, rendering this scenario falsifiable. If this excess persists, it will imply a paradigm shift in assessing supersymmetry breaking and the role of scalars in low scale physics.
description: 7 pages, 2 figures, SUSY incarnate
Sardinia Radio Telescope: General Description, Technical Commissioning and First Light
Creators: name: Bolli, P.
name: Orlati, A.
name: Stringhetti, L.
name: Orfei, A.
name: Righini, S.
name: Ambrosini, R.
name: Bartolini, M.
name: Bortolotti, C.
name: Buffa, F.
name: Buttu, M.
name: Cattani, A.
name: D'Amico, N.
name: Deiana, G.
name: Fara, A.
name: Fiocchi, F.
name: Gaudiomonte, F.
name: Maccaferri, A.
name: Mariotti, S.
name: Marongiu, P.
name: Melis, A.
name: Migoni, C.
name: Morsiani, M.
name: Nanni, M.
name: Nasyr, F.
name: Pellizzoni, A.
name: Pisanu, T.
name: Poloni, M.
name: Poppi, S.
name: Porceddu, I.
name: Prandoni, I.
name: Roda, J.
name: Roma, M.
name: Scalambra, A.
name: Serra, G.
name: Trois, A.
name: Valente, G.
name: Vargiu, G. P.
name: Zacchiroli, G.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: FOS: Physical sciences

description: In the period 2012 June - 2013 October, the Sardinia Radio Telescope (SRT) went through the technical commissioning phase. The characterization involved three first-light receivers, ranging in frequency between 300MHz and 26GHz, connected to a Total Power back-end. It also tested and employed the telescope active surface installed in the main reflector of the antenna. The instrument status and performance proved to be in good agreement with the expectations in terms of surface panels alignment (at present 300 um rms to be improved with microwave holography), gain (~0.6 K/Jy in the given frequency range), pointing accuracy (5 arcsec at 22 GHz) and overall single-dish operational capabilities. Unresolved issues include the commissioning of the receiver centered at 350 MHz, which was compromised by several radio frequency interferences, and a lower-than-expected aperture efficiency for the 22-GHz receiver when pointing at low elevations. Nevertheless, the SRT, at present completing its Astronomical Validation phase, is positively approaching its opening to the scientific community.
description: 20 pages
Ultrafast all-optical shutter based on two-photon absorption
Creators: name: Versteegh, Marijn A. M.
name: Dijkhuis, Jaap I.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Optics (physics.optics)
subject: Other Condensed Matter (cond-mat.other)
subject: FOS: Physical sciences

description: An ultrafast all-optical shutter is presented, based on a simple two-color two-photon absorption technique. For time-resolved luminescence measurements this shutter is an interesting alternative to the optical Kerr gate. The rejection efficiency is 99%, the switching-off and switching-on speeds are limited by the pulse length only, the rejection time is determined by the crystal slab thickness, and the bandwidth spans the entire visible spectrum. We show that our shutter can also be used for accurate measurement of group velocity inside a transparent material.
description: 3 pages, 3 figures
Testing local Lorentz invariance with gravitational waves
Creators: name: Kostelecky, Alan
name: Mewes, Matthew
Publisher: name: arXiv
Year: 2016
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: The effects of local Lorentz violation on dispersion and birefringence of gravitational waves are investigated. The covariant dispersion relation for gravitational waves involving gauge-invariant Lorentz-violating operators of arbitrary mass dimension is constructed. The chirp signal from the gravitational-wave event GW150914 is used to place numerous first constraints on gravitational Lorentz violation.
description: 12 pages
Buoyancy-driven inflow to a relic cold core: the gas belt in radio galaxy 3C 386
Creators: name: Duffy, R. T.
name: Worrall, D. M.
name: Birkinshaw, M.
name: Kraft, R. P.
Publisher: name: arXiv
Year: 2016
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: We report measurements from an XMM-Newton observation of the low-excitation radio galaxy 3C 386. The study focusses on an X-ray-emitting gas belt, which lies between and orthogonal to the radio lobes of 3C 386 and has a mean temperature of $0.94\pm0.05$ keV, cooler than the extended group atmosphere. The gas in the belt shows temperature structure with material closer to the surrounding medium being hotter than gas closer to the host galaxy. We suggest that this gas belt involves a `buoyancy-driven inflow' of part of the group-gas atmosphere where the buoyant rise of the radio lobes through the ambient medium has directed an inflow towards the relic cold core of the group. Inverse-Compton emission from the radio lobes is detected at a level consistent with a slight suppression of the magnetic field below the equipartition value.
description: 11 pages, 10 figures, accepted for publication in MNRAS
Casimir-Polder Shift and Decay Rate in the Presence of Nonreciprocal Media
Creators: name: Fuchs, Sebastian
name: Crosse, J. A.
name: Buhmann, Stefan Yoshi
Publisher: name: arXiv
Year: 2016
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We calculate the Casimir-Polder frequency shift and decay rate for an atom in front of a nonreciprocal medium by using macroscopic quantum electrodynamics. The results are a generalization of the respective quantities for matter with broken time-reversal symmetry which does not fulfill the Lorentz reciprocity principle. As examples, we contrast the decay rates, the resonant and nonresonant frequency shifts of a perfectly conducting (reciprocal) mirror to those of a perfectly reflecting nonreciprocal mirror. We find different power laws for the distance dependence of all quantities in the retarded and nonretarded limits. As an example of a more realistic nonreciprocal medium, we investigate a topological insulator subject to a time-symmetry breaking perturbation.
description: 11 pages, 6 figures
Evidence for Superconducting Phase Coherence in the Metallic/Insulating Regime of the LaAlO3-SrTiO3 Interface Electron System
Creators: name: Fillis-Tsirakis, E.
name: Richter, C.
name: Mannhart, J.
name: Boschker, H.
Publisher: name: arXiv
Year: 2015
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Materials Science (cond-mat.mtrl-sci)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: A superconducting phase with an extremely low carrier density of the order of 10^13 cm^-2 is present at LaAlO3-SrTiO3 interfaces. If depleted from charge carriers by means of a gate field, this superconducting phase undergoes a transition into a metallic/insulating state that is still characterized by a gap in the spectral density of states. Measuring and analyzing the critical field of this gap, we provide evidence that macroscopically phase-coherent Cooper pairs are present in the metallic/insulating state. This is characterized by fluctuating vortex-antivortex pairs, and not by individual, immobile Cooper pairs. The measurements furthermore yield the carrier-density dependence of the superconducting coherence length of the two-dimensional system.
Cartilha Para descentralização da Prep no Municipio de Belém
Creators: name: Pereira, Camilo Eduardo Almeida
name: Leal, Tamilis Feitosa
name: Lima, Vittor Nina de
name: Sales, Juliana Lavareda
name: Sousa, Carla Quaresma Durães de
name: Sousa, Eduarda Barbosa Evangelista de
name: Silva, Ingred Amanda Brito da
name: Lima, Gabriele do Nascimento
name: Gomes, Naellem Filocreão Batista Portilho
name: Silvia, Samya Pureza da
name: Silva, André Vilhena
name: Barra, Edgar ramos
Publisher: name: Zenodo
Year: 2022

description: Cartilha Para Descentralização Da Prep no municipio de Belém
Hydrophobic stabilisation of peptides to study the mechanism of protein folding
Creators: name: Lazoura., Eliada
Publisher: name: Monash University
Year: 2021

description: This thesis was scanned from the print manuscript for digital preservation and is copyright the author.
 Researchers can access this thesis by asking their local university, institution or public library to
 make a request on their behalf. Monash staff and postgraduate students can use the link in the References field.
Interaction induced topological protection in one-dimensional conductors
Creators: name: Kainaris, Nikolaos
name: Santos, Raul A.
name: Gutman, D. B.
name: Carr, Sam T.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We discuss two one-dimensional model systems -- the first is a single channel quantum wire with Ising anisotropy, while the second is two coupled helical edge states. We show that the two models are governed by the same low energy effective field theory, and interactions drive both systems to exhibit phases which are metallic, but with all single particle excitations gapped. We show that such states may be either topological or trivial; in the former case, the system demonstrates gapless end states, and insensitivity to disorder.
description: 8 pages, 8 figures
Addressing spin transitions on 209Bi donors in silicon using circularly-polarized microwaves
Creators: name: Yasukawa, T.
name: Sigillito, A. J.
name: Rose, B. C.
name: Tyryshkin, A. M.
name: Lyon, S. A.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Quantum Physics (quant-ph)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: Over the past decade donor spin qubits in isotopically enriched $^{28}$Si have been intensely studied due to their exceptionally long coherence times. More recently bismuth donor electron spins have become popular because Bi has a large nuclear spin which gives rise to clock transitions (first-order insensitive to magnetic field noise). At every clock transition there are two nearly degenerate transitions between four distinct states which can be used as a pair of qubits. Here it is experimentally demonstrated that these transitions are excited by microwaves of opposite helicity such that they can be selectively driven by varying microwave polarization. This work uses a combination of a superconducting coplanar waveguide (CPW) microresonator and a dielectric resonator to flexibly generate arbitrary elliptical polarizations while retaining the high sensitivity of the CPW.
Informationskonsistenz im föderativen Identitätsmanagement: Modellierung und Mechanismen
Creators: name: Höllrigl, Thorsten
Publisher: name: KIT Scientific Publishing
Year: 2011
Subjects: Föderation
Identitätsmanagement
Informationskonsistenz
Konsistenzmodell

description: Ziel der Arbeit ist es, den föderativen Ansatz und die hiermit verbundenen Konzepte, Standards und Softwaresysteme hinsichtlich der Informationskonsistenz zu analysieren und zu bewerten, sowie Lösungsansätze zur Vermeidung inkonsistenter Identitätsdaten darzulegen.
Voyager observations in the distant heliosheath: An analogy with ISEE-3 observations in the deep geomagnetic tail
Creators: name: Richardson, Ian G.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Space Physics (physics.space-ph)
subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: We suggest an analogy between energetic particle and magnetic field observations made by the Voyager 1 spacecraft in the distant heliosheath at 122 AU in August 2012, and those made in the distant geomagnetic tail by the ISEE 3 spacecraft in 1982-1983, despite large differences in the time and distance scales. The analogy suggests that in August, 2012, Voyager 1 may not have moved from the anomalous cosmic ray (ACR)-dominated heliosheath into the interstellar medium but into a region equivalent to the "lobes" of the geomagnetic tail, composed of heliospheric field lines which have reconnected with the interstellar medium beyond the spacecraft and so are open to the entry of cosmic rays, while heliospheric particles (e.g., ACRs) are free to escape, and which maintain a ~Parker spiral configuration. The heliopause, analogous to the magnetopause forming the outer boundary of the lobes, may then lie beyond this so-called "heliocliff". Even if this analogy is incorrect, the remarkable similarities between the energetic particle and magnetic field observations in these very different regions are worth noting.
Invertible condition of quantum Fisher information matrix for a mixed qubit
Creators: name: Yue, Ping
name: Ge, Li
name: Zheng, Qiang
Publisher: name: arXiv
Year: 2016
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Estimating multiparamter simultaneously as precise as possible is an important goal of quantum metrolo- gy. As a first step to this end, here we give a condition determining whether two arbitrary parameters can be estimated simultaneously for a qubit in the mixed state. An application of this condition is shown.
description: The European Physical Journal D 2016
Solution scattering from colloidal curved plates: barrel tiles, scrolls and spherical patches
Creators: name: Constantin, Doru
Publisher: name: arXiv
Year: 2016
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: FOS: Physical sciences

description: I provide analytical or semi-analytical expressions for the small-angle scattering of colloidal objects that can be described as curved plates. These models could help characterize a variety of inorganic or biological systems.
Hamiltonian reductions of the one-dimensional Vlasov equation using phase-space moments
Creators: name: Chandre, Cristel
name: Perin, Maxime
Publisher: name: arXiv
Year: 2015
Subjects: subject: Chaotic Dynamics (nlin.CD)
subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: We consider Hamiltonian closures of the Vlasov equation using the phase-space moments of the distribution function. We provide some conditions on the closures imposed by the Jacobi identity. We completely solve some families of examples. As a result, we show that imposing that the resulting reduced system preserves the Hamiltonian character of the parent model shapes its phase space by creating a set of Casimir invariants as a direct consequence of the Jacobi identity.
The role of Ets-2 in apoptosis
Creators: name: Lazner., Daniel Simon
Publisher: name: Monash University
Year: 2021

description: This thesis was scanned from the print manuscript for digital preservation and is copyright the author.
 Researchers can access this thesis by asking their local university, institution or public library to
 make a request on their behalf. Monash staff and postgraduate students can use the link in the References field.
Monotonicity methods for inverse scattering problems
Creators: name: Albicker, Annalena
Publisher: name: Karlsruher Institut für Technologie (KIT)
Year: 2023
Subjects: inverse scattering
shape reconstruction
monotonicity principles
Helmholtz equation
Maxwell's equations
far field operator

description: We consider two inverse scattering problems in unbounded free space. On the one hand, we investigate an inverse acoustic obstacle scattering problem governed by the time-harmonic Helmholtz equation. On the other hand, we examine an inverse electromagnetic medium scattering problem modeled by the time-harmonic Maxwell equations. In both cases, our goal is to recover the position and the shape of compactly supported scatterers D from far field observations of scattered waves. For the acoustic scattering problem, we assume that the scatterers are impenetrable obstacles that carry mixed Dirichlet and Neumann boundary conditions. For the electromagnetic scattering problem, the media are supposed to be penetrable, non-magnetic and non-absorbing but the electric permittivity may be inhomogeneous inside the scattering objects. We approach both shape identification problems utilizing a monotonicity-based reconstruction ansatz. First, we establish monotonicity relations for the eigenvalues of the far field operators which map superpositions of plane wave incident fields to the far field patterns of the corresponding scattered fields. In addition, we discuss the existence of localized wave functions that have arbitrarily large energy in some prescribed region while at the same time having arbitrarily small energy in some other prescribed region. Combining the monotonicity relations and the localized wave functions leads to rigorous characterizations of the support of the scattering objects. More precisely, we develop criteria that allow us to evaluate whether certain probing domains B are contained inside the unknown scatterer D or not and vice versa. Therefore, we introduce probing operators corresponding to the probing domains B and show that the number of positive or negative eigenvalues of suitable linear combinations of the far field operator corresponding to D and these probing operators is finite if and only if B is contained within D or if and only if B contains D. Finally, we complement our theoretical findings with numerical reconstruction algorithms and give some examples to illustrate the reconstruction procedure.
Systematic spectral analysis of GX 339-4: influence of Galactic background and reflection models
Creators: name: Clavel, M.
name: Rodriguez, J.
name: Corbel, S.
name: Coriat, M.
Publisher: name: arXiv
Year: 2016
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: Black hole X-ray binaries display large outbursts, during which their properties are strongly variable. We develop a systematic spectral analysis of the 3-40 keV RXTE/PCA data in order to study the evolution of these systems and apply it to GX 339-4. Using the low count rate observations, we provide a precise model of the Galactic background at GX 339-4's location and discuss its possible impact on the source spectral parameters. At higher fluxes, the use of a Gaussian line to model the reflection component can lead to the detection of a high-temperature disk, in particular in the high-hard state. We demonstrate that this component is an artifact arising from an incomplete modeling of the reflection spectrum.
description: 6 pages, 3 figures, Proceeding of the XMM-Newton 2015 Science Workshop 'The Extremes of Black Hole Accretion', Accepted for publication in Astronomical Notes
Forecasts for the WFIRST High Latitude Survey using the BlueTides Simulation
Creators: name: Waters, Dacen
name: Di Matteo, Tiziana
name: Feng, Yu
name: Wilkins, Stephen M.
name: Croft, Rupert A. C.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: We use the BlueTides simulation to predict the properties of the high-$z$ galaxy and active galactic nuclei (AGN) populations for the planned 2200deg$^2$ Wide-Field Infrared Survey Telescope's (WFIRST)-AFTA High Latitude Survey (HLS). BlueTides is a cosmological hydrodynamic simulation, which incorporates a variety of baryon physics in a $(400h^{-1} \mathrm{Mpc})^3$ volume evolved to $z=8$ with 0.7 trillion particles. The galaxy luminosity functions in the simulation show good agreement with all the current observational constraints (up to $z=11$) and predicts an enhanced number of UV bright galaxies. At the proposed depth of the HLS ($m < 26.75$), BlueTides predicts $10^6$ galaxies at $z=8$ with a few up to $z\sim 15$ due to the enhanced bright end of the galaxy luminosity function. At $z=8$, galaxies in the mock HLS have specific star formation rates of $\sim 10 {\rm Gyr}^{-1}$ and ages of $\sim 80 {\rm Myr}$ (both evolving linearly with redshift) and a non-evolving mass-metallicity relation. BlueTides also predicts $\sim 10^4$ AGN in WFIRST HLS from $z=8$ out to $z\sim 14$. These AGN host black holes of $M\sim 10^6-10^8 M_\odot$ accreting close to their Eddington luminosity. Galaxies and AGN have host halo masses of $M_{halo}\sim 10^{11-12} M_\odot$ and a linear bias $b\approx 13-20$. Given the expected galaxy space densities, their high bias and large volume probed we speculate that it may be feasible for WFIRST HLS detect the Baryon Acoustic Oscillation peak in the galaxy power spectrum out to $z=8-9$.
description: 12 pages, 17 figures, submitted to MNRAS May 13th, 2016
Protocolo para Descentralização da Prep no Município de Belém
Creators: name: Sousa, Carla Quaresma Durães de
name: Sousa, Eduarda Barbosa Evangelista de
name: Silva, Ingred Amanda Brito da
name: Lima, Gabriele do Nascimento
name: Gomes, Naellem Filocreão Batista Portilho
name: Silva, Samya Pureza da
name: Silva, André vilhena da
name: Barra, Edgar Ramos
name: Pereira, Camilo Eduardo Almeida
name: Sales, Juliana Lavareda
name: Lima, Vittor  Nina de
name: Leal, Tamilis Feitosa Leal
Publisher: name: Zenodo
Year: 2022

description: Protocolo para descentralização da Prep no município de Belém
Progress and future prospects in co-planting with hyperaccumulators: Application to the sustainable use of agricultural soil contaminated by arsenic, cadmium, and nickel
Creators: name: Wan, Xiaoming
name: Zeng, Weibin
name: Cai, Wen
name: Lei, Mei
name: Liao, Xiaoyong
name: Chen, Tongbin
Publisher: name: Taylor & Francis
Year: 2023
Subjects: subject: Biochemistry
subject: Biotechnology
subject: Chemical Sciences not elsewhere classified
subject: Ecology
subject: FOS: Biological sciences
subject: Plant Biology
subject: Virology

description: Co-planting two or more species on the same piece of land, with overlapping time or not, has been suggested to increase both crop production and long-term sustainability. On soils that are slightly or moderately contaminated with heavy metals, hyperaccumulators have been co-planted with crops to clean the soil and produce safe agricultural products. Despite the increasing number of greenhouse experiments and field trials that investigate the co-planting mechanisms and efficiency, the consistency, stability, and applicability of this technology and its contribution to sustainability remain unclear. From published literature, we collected 118 co-planting combinations involving hyperaccumulators, and compared them with their monoculture controls. Co-planting averagely decreased the shoot arsenic concentration by ∼23.4% and cadmium by ∼13.4%. Co-planting controls the crop contamination as long as the hyperaccumulator and crop species are correctly selected, and the soil heavy metal is within the safe range. Further, a sustainability assessment criterion for the utilization of contaminated agricultural soil was proposed, taking As-contaminated soil as an example. A decision framework and a guideline for co-planting were established to aid in the decision-making. The outlook of co-planting as a sustainable solution and the future development were prospected.
Identification of cellular interactions in the tumor immune microenvironment underlying CD8 T cell exhaustion
Creators: name: Klocke, Christopher
name: Moran, Amy
name: McWeeney, Shannon
name: Adey, Andrew
Publisher: name: Oregon Health and Science University
Year: 2023
Subjects: subject: Computational Biology
subject: Immunotherapy
subject: Single-Cell Gene Expression Analysis
subject: Gene Regulatory Networks
subject: Bioinformatics
subject: FOS: Computer and information sciences
subject: Cancer Immunology
subject: scRNA-seq
subject: CD8 T cell exhaustion

description: Immune checkpoint inhibitors have shown success in treating a subset of patients with certain late-stage cancers. However, these treatments fail in many other patients, due to mechanisms that have yet to be fully characterized. The process of T cell exhaustion, by which T cells become dysfunctional in response to extended exposure to antigen, has been implicated in immunotherapy resistance.We constructed an analysis framework to first rank human skin tumor samples by degree of exhaustion in tumor-infiltrating CD8 T cells and then identify immune cell type-specific gene regulatory network patterns significantly associated with T cell exhaustion.
The role of cathepsin K in bone development, homeostasis and disease
Creators: name: Lazner., Francesca
Publisher: name: Monash University
Year: 2021

description: This thesis was scanned from the print manuscript for digital preservation and is copyright the author.
 Researchers can access this thesis by asking their local university, institution or public library to
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Chiral and Non-Chiral Edge States in Quantum Hall Systems with Charge Density Modulation
Creators: name: Szumniak, Paweł
name: Klinovaja, Jelena
name: Loss, Daniel
Publisher: name: arXiv
Year: 2015
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We consider a system of weakly coupled wires with quantum Hall effect (QHE) and in the presence of a spatially periodic modulation of the chemical potential along the wire, equivalent to a charge density wave (CDW). We investigate the competition between the two effects which both open a gap. We show that by changing the ratio between the amplitudes of the CDW modulation and the tunneling between wires, one can switch between non-topological CDW-dominated phase to topological QHE-dominated phase. Both phases host edge states of chiral and non-chiral nature robust to on-site disorder. However, only in the topological phase, the edge states are immune to disorder in the phase shifts of the CDWs. We provide analytical solutions for filling factor $ν=1$ and study numerically effects of disorder as well as present numerical results for higher filling factors.
Die Revolution 1918/19 in Baden
Creators: name: Schmidgall, Markus
Publisher: name: KIT Scientific Publishing
Year: 2011
Subjects: Deutsches Kaiserreich
Erster Weltkrieg
Novemberrevolution
Weimarer Republik

description: Der Übergang vom Deutschen Kaiserreich zur Weimarer Republik gehört zu den am besten erforschten Abschnitten der neueren deutschen Geschichte. Die süddeutsche Perspektive bietet hier keineswegs nur eine regionale Sichtweise. Vielmehr spiegeln sich in Baden die überregionalen Verhältnisse und Entwicklungen dieser entscheidenden Umbruchphase wider. Markus Schmidgall bietet auf der Basis einer breiten Quellenstudie ein facettenreiches Bild der Revolution 1918/19 in Baden.
Differentiation on spaces of triangulations and optimized triangulations
Creators: name: Magnot, Jean-Pierre
Publisher: name: arXiv
Year: 2016
Subjects: subject: Differential Geometry (math.DG)
subject: FOS: Mathematics

description: We describe a smooth structure, called Frölicher space, on CW complexes and spaces of triangulations. This structure enables differential methods for e.g. minimization of functionnals. As an application, we exhibit how an optimized triangulation can be obtained in order to solve a standard PDE.
Antiferromagnetism and superconductivity in the half-Heusler semimetal HoPdBi
Creators: name: Pavlosiuk, Orest
name: Kaczorowski, Dariusz
name: Fabreges, Xavier
name: Gukasov, Arsen
name: Wiśniewski, Piotr
Publisher: name: arXiv
Year: 2015
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: We observed the coexistence of superconductivity and antiferromagnetic order in the single-crystalline ternary pnictide HoPdBi, a plausible topological semimetal. The compound orders antiferromagnetically at $T_N =$1.9 K and exhibits superconductivity below $T_c =$0.7 K, which was confirmed by magnetic, electrical transport and specific heat measurements. The specific heat shows anomalies corresponding to antiferromagnetic ordering transition and crystalline field effect, but not to superconducting transition. Single-crystal neutron diffraction indicates that the antiferromagnetic structure is characterized by the (1/2, 1/2, 1/2) propagation vector. Temperature variation of the electrical resistivity reveals two parallel conducting channels of semiconducting and metallic character. In weak magnetic fields, the magnetoresistance exhibits weak antilocalization effect, while in strong fields and temperatures below 50 K it is large and negative. At temperatures below 7 K Shubnikov-de Haas oscillations with two frequencies appear in the resistivity. These oscillations have non-trivial Berry phase, which is a distinguished feature of Dirac fermions.