cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Baryon Polarization, Phases of Amplitudes and Time Reversal Odd Observables
Creators: name: Di Salvo, E.
name: Ajaltouni, Z. J.
Publisher: name: arXiv
Year: 2012
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We elaborate two different methods for extracting from data the relative phase of two amplitudes of some sequential decays of baryons. We also relate this phase to a particular physical angle. Moreover we suggest how to infer some time reversal odd observables from data.
Heinrich Lützeler: Bildwörterbuch der Kunst
Creators: name: Gall, Ernst
Publisher: name: Kunstchronik. Monatsschrift für Kunstwissenschaft, Museumswesen und Denkmalpflege
Year: 2019

description: Rezension zu: Heinrich Lützeler: Bildwörterbuch der Kunst. Mit 853 Zeichnungen von Theo Siering, Bonn: 1950. Dümmlers Verlag, 8°, 313 Seiten.
description: Kunstchronik. Monatsschrift für Kunstwissenschaft, Museumswesen und Denkmalpflege, Bd. 3 Nr. 12 (1950): Kunstchronik. Monatsschrift für Kunstwissenschaft, Museumswesen und Denkmalpflege
Searching for $t \to c h$ with Multi-Leptons
Creators: name: Craig, Nathaniel
name: Evans, Jared A.
name: Gray, Richard
name: Park, Michael
name: Somalwar, Sunil
name: Thomas, Scott
name: Walker, Matthew
Publisher: name: arXiv
Year: 2012
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: The results of a multi-lepton search conducted by the CMS collaboration with 5 fb$^{-1}$ of data collected from 7 TeV $pp$ collisions are used to place the first bound on the rare flavor-changing decay of the top quark to a Higgs boson and charm quark. Combining results from a number of exclusive three- and four-lepton search channels yields an estimated upper limit of ${\rm Br}(t \to ch) < 2.7%$ for a Higgs boson mass of 125 GeV. The sensitivity of future dedicated searches for $t \to c h$ could be improved by adding exclusive same sign di-lepton channels, as well as by sub-dividing channels based on $b$-quark tagging and partial kinematic top quark and Higgs boson tagging. This bound may be interpreted more widely within a range of new physics processes that yield final states with a $W$-boson in association with a Higgs boson. For such processes with kinematics that are similar to top--anti-top production and decay, the estimated limit on cross section times branching ratio corresponds to roughly $σ\cdot {\rm Br}(pp \to WhX) < 9$ pb.
description: 11 pages, 1 table; v2 typo corrected
Integrability and concentration of the truncated variation for the sample paths of fractional Brownian motions, diffusions and Lévy processes
Creators: name: Bednorz, Witold Marek
name: Łochowski, RafaŁ Marcin
Publisher: name: arXiv
Year: 2012
Subjects: subject: Probability (math.PR)
subject: FOS: Mathematics

description: For a real càdlàg function $f$ defined on a compact interval, its truncated variation at the level $c>0$ is the infimum of total variations of functions uniformly approximating $f$ with accuracy $c/2$ and (in opposite to the total variation) is always finite. In this paper, we discuss exponential integrability and concentration properties of the truncated variation of fractional Brownian motions, diffusions and Lévy processes. We develop a special technique based on chaining approach and using it we prove Gaussian concentration of the truncated variation for certain class of diffusions. Further, we give sufficient and necessary condition for the existence of exponential moment of order $α>0$ of truncated variation of Lévy process in terms of its Lévy triplet.
description: Published at http://dx.doi.org/10.3150/13-BEJ574 in the Bernoulli (http://isi.cbs.nl/bernoulli/) by the International Statistical Institute/Bernoulli Society (http://isi.cbs.nl/BS/bshome.htm)
High performance DC-DC converters for isolated low voltage PV modules
Creators: name: Mumtahina, Umme
Publisher: name: CQUniversity
Year: 2023
Subjects: classificationCode: 400907
subject: Industrial electronics

description: The demand for increased renewable energy production has led to increased photovoltaic installations worldwide. While the cost of PV modules has reduced strongly, the Balance of System (BoS) costs, notably the costs of the power conditioning system (PCS), have not had a corresponding decrease. Module integrated converter (MIC) technology provides an alternative approach to PCS design. This thesis examines the optimisation of DC-DC converter topologies for PCS designs with an intermediate DC bus. From among various topologies, the LLC resonant converter is chosen. Photovoltaic module power conditioning requires wide operating voltage ranges. The operating range can be extended for the LLC topology by combining variable frequency control and phase shift control. Analytical solutions exist for the converter operating with variable frequency control but these have not been fully developed for phase shift control. This thesis provides a detailed analytical solution for the modes of the phase shifted LLC resonant converter. This thesis presents a loss optimization method for the phase shifted LLC converter that can be applied to a single load condition or to multiple loading condition using weighted efficiency optimisation. A cost function is developed that incorporates a multiple mode solver for the phase shifted LLC state equations to provide a comprehensive solution. This thesis also verifies the applicability of the optimization procedure. This thesis explores the integration of two control methods, variable frequency control and fixed frequency phase shifting control for the effective operation of LLC resonant converter over an extended voltage range.
Verzeichnisse [Bd. 13, H. 1-12 / 1960]
Creators: name: Redaktion, Die
Publisher: name: Kunstchronik. Monatsschrift für Kunstwissenschaft, Museumswesen und Denkmalpflege
Year: 2019

description: Kunstchronik. Monatsschrift für Kunstwissenschaft, Museumswesen und Denkmalpflege, Bd. 13 (1960): Kunstchronik. Monatsschrift für Kunstwissenschaft, Museumswesen und Denkmalpflege
The prevalence of dust on the exoplanet HD 189733b from Hubble and Spitzer observations
Creators: name: Pont, F.
name: Sing, D. K.
name: Gibson, N. P.
name: Aigrain, S.
name: Henry, G.
name: Husnoo, N.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: FOS: Physical sciences

description: The hot Jupiter HD189733b is the most extensively observed exoplanet. Its atmosphere has been detected and characterised in transmission and eclipse spectroscopy, and its phase curve measured at several wavelengths. This paper brings together results of our campaign to obtain the complete transmission spectrum of the atmosphere of this planet from UV to IR with HST, using STIS, ACS and WFC3. We provide a new tabulation of the transmission spectrum across the entire visible and IR range. The radius ratio in each wavelength band was rederived to ensure a consistent treatment of the bulk transit parameters and stellar limb-darkening. Special care was taken to correct for, and derive realistic estimates of the uncertainties due to, both occulted and unocculted star spots. The combined spectrum is very different from the predictions of cloud-free models: it is dominated by Rayleigh scattering over the whole visible and near infrared range, the only detected features being narrow Na and K lines. We interpret this as the signature of a haze of condensate grains extending over at least 5 scale heights. We show that a dust-dominated atmosphere could also explain several puzzling features of the emission spectrum and phase curves, including the large amplitude of the phase curve at 3.6um, the small hot-spot longitude shift and the hot mid-infrared emission spectrum. We discuss possible compositions and derive some first-order estimates for the properties of the putative condensate haze/clouds. We finish by speculating that the dichotomy between the two observationally defined classes of hot Jupiter atmospheres, of which HD189733b and HD209458b are the prototypes, might not be whether they possess a temperature inversion, but whether they are clear or dusty. We also consider the possibility of a continuum of cloud properties between hot Jupiters, young Jupiters and L-type brown dwarfs.
description: Accepted for publication in MNRAS. 31 pages, 19 figures, 8 tables
Demand Response Based optimal Load Management in Smart Cities
Creators: name: Qureshi, Anum
Publisher: name: figshare
Year: 2021
Subjects: subject: 91302 Automation and Control Engineering
subject: FOS: Electrical engineering, electronic engineering, information engineering

description: In a smart grid, efficient load management can help balance and reduce the burden on the nationalpower grid and also minimize local operational electricity cost. Robust optimization is a technique thatis used increasingly used in home energy management systems, where it is applied in the schedulingof household loads through demand side control. In this work, interruptible loads and thermostaticallycontrolled loads are analyzed to obtain optimal schedules in the presence of uncertainty. Firstly, theuncertain parameters are represented as different intervals, and then in order to control the degree ofconservatism, these parameters are divided into various robustness levels. The conventional schedulingproblem is transformed into a deterministic scheduling problem by translating the intervals androbustness levels into constraints. We then apply Harris’ hawk optimization together with integer linearprogramming to further optimize the load scheduling. Cost and trade-off schemes are consideredto analyze the financial consequences of several robustness levels. Results show that the proposedmethod is adaptable to user requirements and robust to the uncertainties.
Felix Kreusch, Über Pfalzkapelle und Atrium zur Zeit Karls des Großen
Creators: name: Verbeek, Albert
Publisher: name: Kunstchronik. Monatsschrift für Kunstwissenschaft, Museumswesen und Denkmalpflege
Year: 2019

description: Rezension zu: Felix Kreusch, Über Pfalzkapelle und Atrium zur Zeit Karls des Großen. (= Dom zu Aachen, Beiträge zur Baugeschichte IV). Aachen 1958. 124 Seiten und 14 Tafeln mit 38 Abbildungen.
description: Kunstchronik. Monatsschrift für Kunstwissenschaft, Museumswesen und Denkmalpflege, Bd. 13 Nr. 1 (1960): Kunstchronik. Monatsschrift für Kunstwissenschaft, Museumswesen und Denkmalpflege
The classification of two-loop integrand basis in pure four-dimension
Creators: name: Feng, Bo
name: Huang, Rijun
Publisher: name: arXiv
Year: 2012
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: In this paper, we have made the attempt to classify the integrand basis of all two-loop diagrams in pure four-dimension space-time. Our classification includes the topology of two-loop diagrams which determines the structure of denominators, and the set of numerators under different kinematic configurations of external momenta by using Gröbner basis method. In our study, the variety defined by setting all propagators to on-shell has played an important role. We discuss the structure of variety and how it splits to various irreducible branches when external momenta at each corner of diagrams satisfy some special kinematic conditions. This information is crucial to the numerical or analytical fitting of coefficients for integrand basis in reduction process.
description: 52 pages, 9 figures. v2 reference added, v3 published version
Zur Ausstellung restaurierter Gemälde in S. Marco, Florenz
Creators: name: Steinweg, Klara
Publisher: name: Kunstchronik. Monatsschrift für Kunstwissenschaft, Museumswesen und Denkmalpflege
Year: 2019

description: Kunstchronik. Monatsschrift für Kunstwissenschaft, Museumswesen und Denkmalpflege, Bd. 13 Nr. 2 (1960): Kunstchronik. Monatsschrift für Kunstwissenschaft, Museumswesen und Denkmalpflege
Tafeln
Creators: name: Redaktion, Die
Publisher: name: Kunstchronik. Monatsschrift für Kunstwissenschaft, Museumswesen und Denkmalpflege
Year: 2019

description: Kunstchronik. Monatsschrift für Kunstwissenschaft, Museumswesen und Denkmalpflege, Bd. 13 Nr. 2 (1960): Kunstchronik. Monatsschrift für Kunstwissenschaft, Museumswesen und Denkmalpflege
Personalia
Creators: name: Redaktion, Die
Publisher: name: Kunstchronik. Monatsschrift für Kunstwissenschaft, Museumswesen und Denkmalpflege
Year: 2019

description: Kunstchronik. Monatsschrift für Kunstwissenschaft, Museumswesen und Denkmalpflege, Bd. 13 Nr. 2 (1960): Kunstchronik. Monatsschrift für Kunstwissenschaft, Museumswesen und Denkmalpflege
Bei der Redaktion eingegangene Neuerscheinungen
Creators: name: Redaktion, Die
Publisher: name: Kunstchronik. Monatsschrift für Kunstwissenschaft, Museumswesen und Denkmalpflege
Year: 2019

description: Kunstchronik. Monatsschrift für Kunstwissenschaft, Museumswesen und Denkmalpflege, Bd. 13 Nr. 2 (1960): Kunstchronik. Monatsschrift für Kunstwissenschaft, Museumswesen und Denkmalpflege
Mitteilungen des Verbandes Deutscher Kunsthistoriker e. V.
Creators: name: Redaktion, Die
Publisher: name: Kunstchronik. Monatsschrift für Kunstwissenschaft, Museumswesen und Denkmalpflege
Year: 2019

description: Kunstchronik. Monatsschrift für Kunstwissenschaft, Museumswesen und Denkmalpflege, Bd. 14 Nr. 1 (1961): Kunstchronik. Monatsschrift für Kunstwissenschaft, Museumswesen und Denkmalpflege
4.45 Pflops Astrophysical N-Body Simulation on K computer -- The Gravitational Trillion-Body Problem
Creators: name: Ishiyama, Tomoaki
name: Nitadori, Keigo
name: Makino, Junichiro
Publisher: name: arXiv
Year: 2012
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: Computational Physics (physics.comp-ph)
subject: FOS: Physical sciences

description: As an entry for the 2012 Gordon-Bell performance prize, we report performance results of astrophysical N-body simulations of one trillion particles performed on the full system of K computer. This is the first gravitational trillion-body simulation in the world. We describe the scientific motivation, the numerical algorithm, the parallelization strategy, and the performance analysis. Unlike many previous Gordon-Bell prize winners that used the tree algorithm for astrophysical N-body simulations, we used the hybrid TreePM method, for similar level of accuracy in which the short-range force is calculated by the tree algorithm, and the long-range force is solved by the particle-mesh algorithm. We developed a highly-tuned gravity kernel for short-range forces, and a novel communication algorithm for long-range forces. The average performance on 24576 and 82944 nodes of K computer are 1.53 and 4.45 Pflops, which correspond to 49% and 42% of the peak speed.
description: 10 pages, 6 figures, Proceedings of Supercomputing 2012 (http://sc12.supercomputing.org/), Gordon Bell Prize Winner. Additional information is http://www.ccs.tsukuba.ac.jp/CCS/eng/gbp2012
The formation of cosmic fullerenes from arophatic clusters
Creators: name: Micelotta, Elisabetta R.
name: Jones, Anthony P.
name: Cami, Jan
name: Peeters, Els
name: Bernard-Salas, Jeronimo
name: Fanchini, Giovanni
Publisher: name: arXiv
Year: 2012
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: Fullerenes have recently been identified in space and they may play a significant role in the gas and dust budget of various astrophysical objects including planetary nebulae (PNe), reflection nebulae (RNe) and H II regions. The tenuous nature of the gas in these environments precludes the formation of fullerene materials following known vaporization or combustion synthesis routes even on astronomical timescales. We have studied the processing of hydrogenated amorphous carbon (a-C:H or HAC) nano-particles and their specific derivative structures, which we name "arophatics", in the circumstellar environments of young, carbon-rich PNe. We find that UV-irradiation of such particles can result in the formation of fullerenes, consistent with the known physical conditions in PNe and with available timescales.
description: Accepted for publication in ApJ. Revised version after comments from the referee. Few references added. Calculation in Sec. 3 moved to the Appendix. Results unchanged. 9 pages, 4 figures, 1 table, 1 Appendix
Positive biorthogonal curvature on S^2 x S^2
Creators: name: Bettiol, Renato G.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Differential Geometry (math.DG)
subject: FOS: Mathematics
subject: 53C20, 53C21, 53B21

description: We prove that S^2 x S^2 satisfies an intermediate condition between having metrics with positive Ricci and positive sectional curvature. Namely, there exist metrics for which the average of the sectional curvatures of any two planes tangent at the same point, but separated by a minimum distance in the 2-Grassmannian, is strictly positive; and this can be done with an arbitrarily small lower bound on the distance between the planes considered. Although they have positive Ricci curvature, these metrics do not have nonnegative sectional curvature. Such metrics also have positive biorthogonal curvature, meaning that the average of sectional curvatures of any two orthogonal planes is positive.
description: LaTeX2e, 13 pages. To appear in Proc. Amer. Math. Soc
Speaking up and speaking back to high school and post-school transition experiences: An Indigenised narratology exploring education for the life success of young Aboriginal and Torres Strait Islander people living on Darumbal Country
Creators: name: Mann, Melinda
Publisher: name: CQUniversity
Year: 2023
Subjects: classificationCode: 450299
subject: Aboriginal and Torres Strait Islander education not elsewhere classified

description: This thesis tells a story of the lands belonging to the Darumbal people located in the coastal region of Central Queensland, Australia, through the lives of a select number of young people connected to the Country as either Traditional Custodians or as members of other Aboriginal and Torres Strait Islander groups who have relocated to this area. In particular, the research examines how ten young Aboriginal and Torres Strait Islander people experienced school and how they leveraged those experiences to transition into family and community roles as young leaders. The thesis concludes that participants actively pursued a process of ‘belonging and becoming’. School spaces were appropriated to facilitate their desire for ‘belongingness’ and skills, abilities and aspirations were developed consistent with the goal of ‘becoming’ the future of their families and communities. Their recent experiences of completing Year 12, working and studying on Darumbal country informed post-school pathways that are simultaneously professional and cultural by necessity. The findings illustrate the environment which young Aboriginal and Torres Strait Islander people studying and working on Darumbal country have identified as valuable in their pursuit of belonging and becoming at the core of their identities. Whilst this research examines a very specific group of young Aboriginal and Torres Strait Islander people in a particular location the learnings from this study could offer an insight into other groups of young Aboriginal and Torres Strait Islander people living on other Aboriginal and Torres Strait lands; and potentially extended to other First Nations’ people elsewhere.
Schoppa, Helmut: Die Kunst der Römerzeit in Gallien, Germanien und Britannien
Creators: name: Jacob-Friesen, Karl Hermann
Publisher: name: Nachrichten aus Niedersachsens Urgeschichte
Year: 2019

description: Rezension zu: Schoppa, Helmut: Die Kunst der Römerzeit in Gallien, Germanien und Britannien. München (Deutscher Kunstverlag) 1957. 68 Seit, mit 140 ganzseitigen Bildern u. 4 Farbtaf. Leinen
description: Nachrichten aus Niedersachsens Urgeschichte, Bd. 27 (1958): Nachrichten aus Niedersachsens Urgeschichte
Stenton, Frank: Der Wandteppich von Bayeux
Creators: name: Jacob-Friesen, Karl Hermann
Publisher: name: Nachrichten aus Niedersachsens Urgeschichte
Year: 2019

description: Rezension zu: Stenton, Frank: Der Wandteppich von Bayeux. Köln (Phaidon- Verlag) 1957. 192 Seiten mit 38 Textabb. und der Gesamtwiedergabe auf 73 Taf. und XIII Bunttaf, Leinen
description: Nachrichten aus Niedersachsens Urgeschichte, Bd. 27 (1958): Nachrichten aus Niedersachsens Urgeschichte
Topological phases in adiabatic and nonadiabatic driven systems
Creators: name: Gómez-León, Álvaro
name: Platero, Gloria
Publisher: name: arXiv
Year: 2012
Subjects: subject: Quantum Physics (quant-ph)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: In this work we study the geometrical and topological properties of non-equilibrium quantum systems driven by ac fields. We consider two tunnel coupled spin qubits driven by either spatially homogeneous or inhomogeneous ac fields. Our analysis is an extension of the classical model introduced by Berry with he addition of the spatial degree of freedom. We calculate the Berry and Aharonov-Anandan geometric phases, and demonstrate the influence of the different field parameters in the geometric properties. We also discuss the topological properties associated with the different driving regimes, and show that by tuning the different parameters one can induce topological phase transitions, even in the non-adiabatic regime.
Piesker, Hans: Untersuchungen zur älteren Lüneburgischen Bronzezeit
Creators: name: Jacob-Friesen, Karl Hermann
Publisher: name: Nachrichten aus Niedersachsens Urgeschichte
Year: 2019

description: Rezension zu: Piesker, Hans: Untersuchungen zur älteren Lüneburgischen Bronzezeit. Lüneburg 1958. Veröffentlichung des Nordwestdeutschen Verbandes für Altertumsforschung und der urgeschichtlichen Sammlung des Landesmuseums Hannover. 35 Seiten mit 1 Lageplan, 6 Textabb. und 72 Taf. Brosch.
description: Nachrichten aus Niedersachsens Urgeschichte, Bd. 28 (1959): Nachrichten aus Niedersachsens Urgeschichte
Schneider, J., Coblenz, W. u. a.: Studien zur Lausitzer Kultur
Creators: name: Jacob-Friesen, Karl Hermann
Publisher: name: Nachrichten aus Niedersachsens Urgeschichte
Year: 2019

description: Rezension zu: Schneider, J., Coblenz, W. u. a.: Studien zur Lausitzer Kultur. Heft 3 der Forschungen zur Vor- und Frühgeschichte. Leipzig (J. A. Barth) 1958. 162 Seiten mit 44 Abb. im Text und 4 Bildtafeln. Brosch.
description: Nachrichten aus Niedersachsens Urgeschichte, Bd. 28 (1959): Nachrichten aus Niedersachsens Urgeschichte
One student's inappropriate behaviour as an expression of pain: A case study
Creators: name: Connor, PG
Publisher: name: CQUniversity
Year: 2023
Subjects: classificationCode: 399999
subject: Other education not elsewhere classified

description: This study attempts to establish a link between pain and behaviour (especially inappropriate behaviour). By identifying this link, it is hoped that some of the more common methods of behaviour management may be altered so that behaviour, which is essentially an expression of pain, might be managed more effectively in school, home and society at large. In the literature search, biological studies on pain added a particular dimension to the direction of the study and together with sociological and psychological studies on behaviour, fanned a link between the two. The methodology employed is a case study of a teenage, primary school male child, separated from his mother and living with his father. The student is given the pseudonym "Miff' in this study. Evidence is strong for the validity of the findings of the study, which were supported by data in Miff's case history, the external surveys, and Miffs own testimony. The findings of the study give rise to the recommendations that the Queensland Education Department alter its approach to behaviour management policy and practice, on how it structures and funds behaviour management programs, and how it trains and deploys behaviour management personnel. This study has brought into focus, patterns and insights into the behaviour management of children, which were hitherto only implied.
Superconductivity at 5.4 K in $β$-Bi$_2$Pd
Creators: name: Imai, Yoshinori
name: Nabeshima, Fuyuki
name: Yoshinaka, Taiki
name: Miyatani, Kosuke
name: Kondo, Ryusuke
name: Komiya, Seiki
name: Tsukada, Ichiro
name: Maeda, Atsutaka
Publisher: name: arXiv
Year: 2012
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: We investigate bulk superconductivity in a high-quality single crystal of Bi$_2$Pd ($β$-Bi$_2$Pd, space group; I4/mmm) at temperatures less than 5.4 K by exploring its electrical resistivity, magnetic susceptibility, and specific heat. The temperature dependence of the electrical resistivity shows convex-upward behaviors at temperatures greater than 40-50 K, which can be explained by a parallel-resistor model. In addition, we demonstrate that this material is a multiple-band/multiple-gap superconductor based on the temperature dependences of the specific heat and the upper critical field.
description: 4 pages, 3 figures
Creating healthy adolescents and secondary school environments: Use of formative research in school based obesity prevention (the CHASE project)
Creators: name: Williams, Susan
Publisher: name: CQUniversity
Year: 2023
Subjects: classificationCode: 420799
subject: Sports science and exercise not elsewhere classified
classificationCode: 321005
subject: Public health nutrition

description: Students of six Rockhampton secondary schools were sampled to explore associations between Body Mass Index, involvement in moderate and physical activity and healthy nutrition with the aim of developing school-based interventions for the prevention of adolescent obesity.
The rhythm of coupled metronomes
Creators: name: Boda, Szilard
name: Neda, Zoltan
name: Tyukodi, Botond
name: Tunyagi, Arthur
Publisher: name: arXiv
Year: 2012
Subjects: subject: Chaotic Dynamics (nlin.CD)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Classical Physics (physics.class-ph)
subject: Physics Education (physics.ed-ph)
subject: FOS: Physical sciences

description: Spontaneous synchronization of an ensemble of metronomes placed on a freely rotating platform is studied experimentally and by computer simulations. A striking in-phase synchronization is observed when the metronomes' beat frequencies are fixed above a critical limit. Increasing the number of metronomes placed on the disk leads to an observable decrease in the level of the emerging synchronization. A realistic model with experimentally determined parameters is considered in order to understand the observed results. The conditions favoring the emergence of synchronization are investigated. It is shown that the experimentally observed trends can be reproduced by assuming a finite spread in the metronomes' natural frequencies. In the limit of large numbers of metronomes, we show that synchronization emerges only above a critical beat frequency value.
description: 10 pages, 10 Figures
The S parameter for a Light Composite Higgs: a Dispersion Relation Approach
Creators: name: Orgogozo, Axel
name: Rychkov, Slava
Publisher: name: arXiv
Year: 2012
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We derive a dispersion relation for the S parameter in the SO(5)/SO(4) Minimal Composite Higgs model. This generalizes the Peskin-Takeuchi formula to the case when a light Higgs boson is present in the spectrum. Our result combines an IR effect due to the reduction in the Higgs boson couplings with a UV contribution from the strong sector. It also includes a finite matching term, achieving a very good relative accuracy O(m_h/m_ρ). We apply our formula in several toy examples, modeling the UV spectral density via Vector Meson Dominance.
description: 21 pages, no figures; v2: references added, typos corrected; v3: accuracy estimate revised, comparison with gauge formalism made more precise, other minor improvements, version to appear in JHEP; v4: misprints corrected, footnote added
Creating a bullying measure for Vietnamese high school students
Creators: name: Nguyen, Cao
Publisher: name: CQUniversity
Year: 2023
Subjects: classificationCode: 529999
subject: Other psychology not elsewhere classified

description: This thesis sought to create a culturally sensitive bullying measure for students in Vietnam. The measure was developed via two qualitative studies with Vietnamese educators and students. A third, quantitative, study provided initial validation of the measure.
Duality of Weak and Strong Scatterer in Luttinger liquid Coupled to Massless Bosons
Creators: name: Yurkevich, Igor V.
name: Galda, Alexey
name: Yevtushenko, Oleg M.
name: Lerner, Igor V.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: We study electronic transport in a Luttinger liquid (LL) with an embedded impurity, which is either a weak scatterer (WS) or a weak link (WL), when interacting electrons are coupled to one-dimensional massless bosons (e.g., acoustic phonons). We find that the duality relation, $Δ_{ws}Δ_{wl}=1 $, between scaling dimensions of the electron backscattering in the WS and WL limits, established for the standard LL, holds in the presence of the additional coupling for an arbitrary fixed strength of boson scattering from the impurity. This means that at low temperatures such a system remains either an ideal insulator or an ideal metal, regardless of the scattering strength. On the other hand, when fermion and boson scattering from the impurity are correlated, the system has a rich phase diagram that includes a metal-insulator transition at some intermediate values of the scattering.
description: Final version, as published in PRL (including 2 pp. Supplemental material)
Exploring the maternal behaviour of north Australian beef cattle using precision livestock management technologies
Creators: name: Kour, Harpreet
Publisher: name: CQUniversity
Year: 2023
Subjects: classificationCode: 310901
subject: Animal behaviour

description: This research explored the use of triaxial accelerometer fitted on right side of halter of calf to record its suckling behaviour under pastoral condition of north Australia beef farms. It also investigated various calf’s and cow’s factors effecting suckling behaviour of calf. The relationship between time spent by calf in suckling its dam and time spent by calf in close proximity to its dam was explored.
Adiabatic continuity between Hofstadter and Chern insulator states
Creators: name: Wu, Ying-Hai
name: Jain, J. K.
name: Sun, Kai
Publisher: name: arXiv
Year: 2012
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: We show that the topologically nontrivial bands of Chern insulators are adiabatic cousins of the Landau bands of Hofstadter lattices. We demonstrate adiabatic connection also between several familiar fractional quantum Hall states on Hofstadter lattices and the fractional Chern insulator states in partially filled Chern bands, which implies that they are in fact different manifestations of the same phase. This adiabatic path provides a way of generating many more fractional Chern insulator states and helps clarify that nonuniformity in the distribution of the Berry curvature is responsible for weakening or altogether destroying fractional topological states.
Development of transposon and retrovirus-derived vectors for the rapid establishment of efficient producer cell lines
Creators: name: Tschorn, Natalie
Publisher: name: Hannover : Institutionelles Repositorium der Leibniz Universität
Year: 2023
Subjects: subject: Sleeping Beauty transposon
subject: mRNA
subject: retroviral vector
subject: PVC211
subject: pseudotype vector
subject: Sleeping Beauty Transposon
subject: retroviraler Vektor
subject: pseudotyp-Vektoren
subject: Dewey Decimal Classification::500 | Naturwissenschaften::570 | Biowissenschaften, Biologie

description: With the growing demand for therapeutic proteins such as antibodies or vaccines, manufactures are in need to deliver products at high quality and constant productivity. For the biotechnological production of these products, mammalian cells are predominantly used. The productivity of producer cells is, amongst others, dependent on the number of integrated transgene copies per cell, and thus elevating stable gene transfer efficiencies to ensure sustained expression of the gene of interest is paramount. In this study the Sleeping Beauty transposon two-component vector system, consisting of a transposon donor plasmid and a transposase expression plasmid, was used to generate stable cell pools. However, using sensitive genomic PCR and reverse transcriptase PCR (RT-PCR), the transposase gene integration and expression was demonstrated for a time period of 48 days post transfection. To provide an alternative to the employment of plasmid-based transposase expression circumventing potential re-mobilization events of the already stably transposed transgenes, the transposase gene was transcribed in vitro into mRNA. After co-transfection of transposase transcripts at different ratios to the donor vector efficient transposition was obtained. This study demonstrated that this technical approach mediated high copy numbers and expression levels of transgenes in recombinant cells without the risk of undesired extended transposase expression. Besides transposons, retroviral vectors are frequently used to introduce foreign genetic material into mammalian cells aiming for the establishment of producer cells. Such viral vectors are commonly pseudotyped with VSV-G achieving high vector copy numbers in mammalian cells. However, this requires handling under BSL-2 conditions. To circumvent this, viral vectors were equipped with the ecotropic envelope protein PVC211mc, a molecular clone of Friend murine leukemia virus (MLV), enabling transduction of CHO cells and murine hematopoietic stem cells but allowing experiments in BSL- 1 laboratories. The aim of this work was to optimize gene transfer efficiencies by generating PVC211-derived envelope protein (Env) variants lacking the R-peptide and thus rendering the Env proteins fusogenic. All generated variants failed to efficiently pseudotype MLV vectors but two variants successfully pseudotyped HIV-1 particles. The HIV-1 vectors pseudotyped with the envelope variant eMLV-GaLVΔR mediated superior infectivity as compared to wild-type Env. HIV(eMLV-GaLVΔR) should prove useful as a tool for the establishment of productive producer cells.
A Gas Giant Circumbinary Planet Transiting the F Star Primary of the Eclipsing Binary Star KIC 4862625 and the Independent Discovery and Characterization of the two transiting planets in the Kepler-47 System
Creators: name: Kostov, Veselin B.
name: McCullough, Peter
name: Hinse, Tobias
name: Tsvetanov, Zlatan
name: Hébrard, Guillaume
name: Díaz, Rodrigo
name: Deleuil, Magali
name: Valenti, Jeff A.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: FOS: Physical sciences

description: We report the discovery of a transiting, gas giant circumbinary planet orbiting the eclipsing binary KIC 4862625 and describe our independent discovery of the two transiting planets orbiting Kepler-47 (Orosz et al. 2012). We describe a simple and semi-automated procedure for identifying individual transits in light curves and present our follow-up measurements of the two circumbinary systems. For the KIC 4862625 system, the 0.52+/-0.018 RJup radius planet revolves every ~138 days and occults the 1.47+/-0.08 MSun, 1.7 +/-0.06 RSun F8 IV primary star producing aperiodic transits of variable durations commensurate with the configuration of the eclipsing binary star. Our best-fit model indicates the orbit has a semi-major axis of 0.64 AU and is slightly eccentric, e=0.1. For the Kepler-47 system, we confirm the results of Orosz et al. (2012). Modulations in the radial velocity of KIC 4862625A are measured both spectroscopically and photometrically, i.e. via Doppler boosting, and produce similar results.
description: 40 pages, 17 figures
The Kastler-Kalau-Walze type theorem for 6-dimensional manifolds with boundary
Creators: name: Wang, Jian
name: Wang, Yong
Publisher: name: arXiv
Year: 2012
Subjects: subject: Differential Geometry (math.DG)
subject: Mathematical Physics (math-ph)
subject: FOS: Mathematics
subject: FOS: Physical sciences

description: In this paper, we define lower dimensional volumes of spin manifolds with boundary. We compute the lower dimensional volume ${\rm Vol}_{6}^{(1,3)}$ for 6-dimensional spin manifolds with boundary and the gravity on boundary is derived by the noncommutative residue associated with Dirac operators.For 6-dimensional manifolds with boundary, we also get a Kastler-Kalau-Walze type theorem for a general fourth order operator.
description: 15 pages. to appear in Journal of Mathematical Physics
Oblique Corrections in the MSSM at One Loop. II. Fermions
Creators: name: Yu, Yao
name: Zheng, Sibo
Publisher: name: arXiv
Year: 2012
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: This paper is the completion of an earlier work arXiv:1207.4867 which involves the derivation of oblique corrections in the MSSM at one loop. In terms of the two-component spinor formalism, which is new in compared with those used in the literature, the contributions arising from the fermion superpartners i.e, neutralino-chargino sector to self-energy of standard model electroweak gauge bosons are calculated. Corresponding descendants the $S$, $T$ and $U$ parameters are presented. The validity of our results is examined in two ways, which are then followed by detailed analysis on the results in the literature.
description: v4,10 pages, 3 figs, references corrected
Warps, bending and density waves excited by rotating magnetized stars: results of global 3D MHD simulations
Creators: name: Romanova, M. M.
name: Ustyugova, G. V.
name: Koldoba, A. V.
name: Lovelace, R. V. E.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: We report results of the first global three-dimensional magnetohydrodynamic simulations of the waves excited in an accretion disc by a rotating star with a dipole magnetic field misaligned from the star's rotation axis (which is aligned with the disc axis). The main results are the following: (1) If the magnetosphere of the star corotates approximately with the inner disc, then we observe a strong one-armed bending wave (a warp). This warp corotates with the star and has a maximum amplitude between corotation radius and the radius of the vertical resonance. The disc's center of mass can deviate from the equatorial plane up to the distance of z_w\approx 0.1 r. However, the effective height of the warp can be larger, h_w \approx 0.3 r due to the finite thickness of the disc. Stars with a range of misalignment angles excite warps. However, the amplitude of the warps is larger for misalignment angles between 15 and 60 degrees. (2) If the magnetosphere rotates slower, than the inner disc, then a bending wave is excited at the disc-magnetosphere boundary, but does not form a large-scale warp. Instead, high-frequency oscillations become strong at the inner region of the disc. These are (a) trapped density waves which form inside the radius where the disc angular velocity has a maximum, and (b) inner bending waves which appear in the case of accretion through magnetic Raleigh-Taylor instability. These two types of waves are connected with the inner disc and their frequencies will vary with accretion rate. Bending oscillations at lower frequencies are also excited including global oscillations of the disc. In cases where the simulation region is small, slowly-precessing warp forms. Simulations are applicable to young stars, cataclysmic variables, and accreting millisecond pulsars.
description: 26 pages, 25 figures
Enabling Social Applications via Decentralized Social Data Management
Creators: name: Kourtellis, Nicolas
name: Blackburn, Jeremy
name: Borcea, Cristian
name: Iamnitchi, Adriana
Publisher: name: arXiv
Year: 2012
Subjects: subject: Social and Information Networks (cs.SI)
subject: Computers and Society (cs.CY)
subject: Distributed, Parallel, and Cluster Computing (cs.DC)
subject: Physics and Society (physics.soc-ph)
subject: FOS: Computer and information sciences
subject: FOS: Physical sciences
subject: H.3.4

description: An unprecedented information wealth produced by online social networks, further augmented by location/collocation data, is currently fragmented across different proprietary services. Combined, it can accurately represent the social world and enable novel socially-aware applications. We present Prometheus, a socially-aware peer-to-peer service that collects social information from multiple sources into a multigraph managed in a decentralized fashion on user-contributed nodes, and exposes it through an interface implementing non-trivial social inferences while complying with user-defined access policies. Simulations and experiments on PlanetLab with emulated application workloads show the system exhibits good end-to-end response time, low communication overhead and resilience to malicious attacks.
description: 27 pages, single ACM column, 9 figures, accepted in Special Issue of Foundations of Social Computing, ACM Transactions on Internet Technology
Creative programs in community settings in Victoria: How providing opportunities to engage in the art-making process improves self-esteem, builds social support networks and encourages communication
Creators: name: Dragon, Susan
Publisher: name: CQUniversity
Year: 2022
Subjects: classificationCode: 360699
subject: Visual arts not elsewhere classified
classificationCode: 440903
subject: Social program evaluation

description: BACKGROUND: Almost anyone working in arts-based interventions has an intuitive understanding of the health and social benefits associated with this work, attributing outcomes to the role of the facilitator, the creative space, the social element, and the art-making process. Local creative programs exist in abundance in health organisations, community centres, neighbourhood houses, schools and learning centres in Victoria, providing opportunities for participation in creative activity. However, we have lost the historical belief of art as a healing tool and in the value of engaging local communities in creative activity if we do not give voice to the participants of these less publicised, smaller, local art programs and explore their experiences of engaging in the art-making process (Dragon & Madsen 2015). AIM: The aim of the research was to investigate if the process of engaging in creative activity in art programs delivered in the community could achieve the outcomes of improved self-esteem, increased social support and enhance communication. RESEARCH METHOD: A mixed method sequential design of four phases was conducted to evaluate the outcomes of 20 art programs delivered in 13 community centres in Victoria. Quantitative methods included standardised assessment scales, namely the Rosenberg Self-esteem Scale and the Social Functioning scale. Qualitative methods used were interviews with program facilitators and interviews with 13 participants. RESULTS: Statistically there was a significant increase in self-esteem but not in social interaction as a whole. However, qualitative results highlighted the participants’ positive experiences of building social support networks as well as building self-esteem. CONCLUSION: While contributing factors are attributed to positive outcomes in art-based interventions in the literature, this research found that these factors were embedded within the art-making process which is central to the engagement in creative activity. The art-making process exists in every arts-based intervention as well as in the art programs of the current study, in spite of the lack of resources, the difference in programs and limited conventional methods. This research supports those advocating for the use of arts in promoting health to seize every opportunity to provide engagement in the art-making process because of potential benefits.
A simple proof of the density Hales-Jewett theorem
Creators: name: Dodos, Pandelis
name: Kanellopoulos, Vassilis
name: Tyros, Konstantinos
Publisher: name: arXiv
Year: 2012
Subjects: subject: Combinatorics (math.CO)
subject: FOS: Mathematics

description: We give a purely combinatorial proof of the density Hales--Jewett Theorem that is modeled after Polymath's proof but is significantly simpler. In particular, we avoid the use of the equal-slices measure and work exclusively with the uniform measure.
description: 12 pages, no figures; International Mathematics Research Notices, to appear
Efimov effect of triple-stranded DNA: Real-space renormalization group and Zeros of the partition function
Creators: name: Maji, Jaya
name: Bhattacharjee, Somendra M.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Soft Condensed Matter (cond-mat.soft)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We study the melting of three-stranded DNA by using the real-space renormalization group and exact recursion relations. The prediction of an unusual Efimov-analog three-chain bound state, that appears at the critical melting of two-chain DNA, is corroborated by the zeros of the partition function. The distribution of the zeros has been studied in detail for various situations. We show that the Efimov DNA can occur even if the three-chain (i. e., three-monomer) interaction is repulsive in nature. In higher dimensions, a striking result that emerged in this repulsive zone is a continuous transition from the critical state to the Efimov DNA.
description: 10 pages, 12 pdf figures
KAM for reversible derivative wave equations
Creators: name: Berti, M.
name: Biasco, L.
name: Procesi, M.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Analysis of PDEs (math.AP)
subject: Dynamical Systems (math.DS)
subject: FOS: Mathematics
subject: 37K55, 35L05

description: We prove the existence of Cantor families of small amplitude, analytic, quasi-periodic solutions of derivative wave equations, with zero Lyapunov exponents and whose linearized equation is reducible to constant coefficients. This result is derived by an abstract KAM theorem for infinite dimensional reversible dynamical systems
description: 39 pages
Faster than expected escape for a class of fully chaotic maps
Creators: name: Georgiou, Orestis
name: Dettmann, Carl P.
name: Altmann, Eduardo G.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Chaotic Dynamics (nlin.CD)
subject: Mathematical Physics (math-ph)
subject: Dynamical Systems (math.DS)
subject: FOS: Physical sciences
subject: FOS: Mathematics

description: We investigate the dependence of the escape rate on the position of a hole placed in uniformly hyperbolic systems admitting a finite Markov partition. We derive an exact periodic orbit formula for finite size Markov holes which differs from other periodic expansions in the literature and can account for additional distortion to maps with piecewise constant expansion rate. Using asymptotic expansions in powers of hole size we show that for systems conjugate to the binary shift, the average escape rate is always larger than the expectation based on the hole size. Moreover, we show that in the small hole limit the difference between the two decays like a known constant times the square of the hole size. Finally, we relate this problem to the random choice of hole positions and we discuss possible extensions of our results to non-Markov holes as well as applications to leaky dynamical networks.
description: 11 pages, 6 figures