cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Diffuseness parameter as a bottleneck for accurate half-life calculations
Creators: name: Abdul-latif, Aladdin
name: Nagib, Omar
Publisher: name: arXiv
Year: 2021
Subjects: subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: An investigation of the calculated $α$ decay half-lives of super heavy nuclei (SHN) reveals that the diffuseness parameter is a great bottleneck for achieving accurate results and predictions. In particular, when universal proximity function is adopted for nuclear potential, half-life is found to vary significantly and nonlinearly as a function of diffuseness parameter. To overcome this limiting hurdle, a new semiempirical formula for diffuseness that is dependent on charge and neutron numbers is proposed in this work. With the model at hand, half-lives of 218 SHN are computed, for 68 of which there exists available experimental data and 150 of which are predicted. The calculations of half-lives for 68 SHN are compared against experimental data and the calculated data obtained by using deformed Woods-Saxon, deformed Coulomb potentials model, and six semiempirical formulas. The predictions of 150 SHN are compared against the predictions of seven of the current best semiempirical formulas. Calculations of the present study are in good agreement with the experimental half-lives outperforming all but ImSahu semiempirical formula. Moreover, the predictions of our model are consistent with predictions of the semiempirical formulas. We strongly conclude that more attention should be directed toward obtaining accurate diffuseness parameter values for using it in nuclear calculations.
description: 10 pages, 5 figures. published version
In-Field Transport Critical Currents in Superhydride Superconductors: Highly-Compressed CeH$_9$
Creators: name: Talantsev, E. F.
Publisher: name: arXiv
Year: 2024
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: Experimental discovery of near-room-temperature superconductivity in highly compressed hydrogen sulfate started a new era in superconductivity. To date, researchers have made the discovery of dozens of superconducting hydride phases with transition temperatures above LN2. While the primary focus of the research in this field is to determine fundamental superconducting parameters of these superconductors, here we revealed primary applied property of these superconductors which is the field dependence of transport critical current, $I_{c}(B,T)$. We analyzed reported $V(I)$ curves for a highly compressed CeH$_9$ sample with $T_c = 70$ $K$, and showed that this hydride exhibits practically identical $I_{c}(B,T)$ to HTS 1G-wire (Bi,Pb)$_2$Sr$_2$Ca$_2$Cu$_3$O$_{11}$. Additionally, we demonstrated that the $n$-value in CeH$_9$ superhydride follows a nearly identical dependence on critical current, as observed in Nb$_3$Sn conductors.
description: 11 pages, 4 figures, 47 references
The Synthesis of Chemically Well-defined and Biocompatible Oligopyrroles for Tissue Engineering Applications
Creators: name: Lee, BoRa
Publisher: name: Canberra, ACT : The Australian National University
Year: 2016
Subjects: Chemistry
Synthesis
Organic Synthesis
Pyrrole
Oligopyrroles
Polypyrrole(s)

description: The studies described in this Thesis involve the development of syntheses of a wide range of chemically well-defined oligopyrroles for tissue engineering applications. In particular, the outcomes of a detailed investigation into the preparation of certain types of such oligopyrroles are presented using Suzuki-Miyaura cross-coupling reactions as a means for linking pyrrole-based building blocks.
An Interdisciplinary Survey on Information Flows in Supply Chains
Creators: name: Pennekamp, Jan
name: Matzutt, Roman
name: Klinkmüller, Christopher
name: Bader, Lennart
name: Serror, Martin
name: Wagner, Eric
name: Malik, Sidra
name: Spiß, Maria
name: Rahn, Jessica
name: Gürpinar, Tan
name: Vlad, Eduard
name: Leemans, Sander J. J.
name: Kanhere, Salil S.
name: Stich, Volker
name: Wehrle, Klaus
Publisher: name: arXiv
Year: 2024
Subjects: subject: Cryptography and Security (cs.CR)
subject: Computers and Society (cs.CY)
subject: FOS: Computer and information sciences

description: Supply chains form the backbone of modern economies and therefore require reliable information flows. In practice, however, supply chains face severe technical challenges, especially regarding security and privacy. In this work, we consolidate studies from supply chain management, information systems, and computer science from 2010-2021 in an interdisciplinary meta-survey to make this topic holistically accessible to interdisciplinary research. In particular, we identify a significant potential for computer scientists to remedy technical challenges and improve the robustness of information flows. We subsequently present a concise information flow-focused taxonomy for supply chains before discussing future research directions to provide possible entry points.
Coupled Day-Night Models of Exoplanetary Atmospheres
Creators: name: Gandhi, Siddharth
name: Jermyn, Adam S.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: FOS: Physical sciences

description: We provide a new framework to model the day side and night side atmospheres of irradiated exoplanets using 1-D radiative transfer by incorporating a self-consistent heat flux carried by circulation currents (winds) between the two sides. The advantages of our model are its physical motivation and computational efficiency, which allows for an exploration of a wide range of atmospheric parameters. We use this forward model to explore the day and night side atmosphere of WASP-76~b, an ultra-hot Jupiter which shows evidence for a thermal inversion and Fe condensation, and WASP-43~b, comparing our model against high precision phase curves and general circulation models. We are able to closely match the observations as well as prior theoretical predictions for both of these planets with our model. We also model a range of hot Jupiters with equilibrium temperatures between 1000-3000~K and reproduce the observed trend that the day-night temperature contrast increases with equilibrium temperature up to $\sim$2500~K beyond which the dissociation of H$_2$ becomes significant and the relative temperature difference declines.
description: 20 pages, 7 figures, accepted for publication in MNRAS
Adjoint and coadjoint orbits of the Poincaré group
Creators: name: Cushman, Richard
name: van der Kallen, Wilberd
Publisher: name: arXiv
Year: 2003
Subjects: subject: Representation Theory (math.RT)
subject: FOS: Mathematics
subject: 81R05

description: In this paper we give an effective method for finding a unique representative of each orbit of the adjoint and coadjoint action of the real affine orthogonal group on its Lie algebra. In both cases there are orbits which have a modulus that is different from the usual invariants for orthogonal groups. We find an unexplained bijection between adjoint and coadjoint orbits. As a special case, we classify the adjoint and coadjoint orbits of the Poincaré group.
description: Revised arguments in section 6, results unchanged. Corrected typos
Intersection conductance and canonical alternating paths, methods for general finite Markov chains
Creators: name: Montenegro, Ravi
Publisher: name: arXiv
Year: 2006
Subjects: subject: Combinatorics (math.CO)
subject: Probability (math.PR)
subject: FOS: Mathematics
subject: 68W20, 60J10

description: We extend the conductance and canonical paths methods to the setting of general finite Markov chains, including non-reversible non-lazy walks. The new path method is used to show that a known bound for mixing time of a lazy walk on a Cayley graph with symmetric generating set also applies to the non-lazy non-symmetric case, often even when there is no holding probability.
description: 18 pages
Chiral effective Lagrangian for excited heavy-light mesons from QCD
Creators: name: Chen, Qing-Sen
name: Fu, Hui-Feng
name: Ma, Yong-Liang
name: Wang, Qing
Publisher: name: arXiv
Year: 2021
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We derive the chiral effective Lagrangian for excited heavy-light mesons from QCD under proper approximations. We focus on the chiral partners with $j_l^P=\frac{3}{2}^+$ and $j_l^P=\frac{3}{2}^-$ which amounts to ($1^+,2^+$) and ($1^-,2^-$) states respectively. The low energy constants including the masses of the chiral partners are calculated. The calculated spectrum for the excited mesons are found roughly consistent with experimental data. In addition, our results indicate that quantum numbers of $B_J(5970)$ can be identified with $1^-$ or $2^-$.
description: 7 pages. arXiv admin note: text overlap with arXiv:2012.03733
Observations of GRB 060526 Optical Afterglow with Russian-Turkish 1.5-m Telescope
Creators: name: Khamitov, I. M.
name: Burenin, R. A.
name: Bikmaev, I. F.
name: Sakhibullin, N. A.
name: Pavlinsky, M. N.
name: Sunyaev, R. A.
name: Aslan, Z.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We present the results of the photometric multicolor observations of GRB 060526 optical afterglow obtained with Russian-Turkish 1.5-m Telescope (RTT150, Mt. Bakirlitepe, Turkey). The detailed measurements of afterglow light curve, starting from about 5 hours after the GRB and during 5 consecutive nights were done. In addition, upper limits on the fast variability of the afterglow during the first night of observations were obtained and the history of afterglow color variations was measured in detail. In the time interval from 6 to 16 hours after the burst, there is a gradual flux decay, which can be described approximately as a power law with an index of -1.14+-0.02. After that the variability on the time scale δt < t is observed and the afterglow started to decay faster. The color of the afterglow, V-R=~0.5, is approximately the same during all our observations. The variability is detected on time scales up to δt/t =~ 0.0055 at ΔF_ν/F_ν=~ 0.3, which violates some constraints on the variability of the observed emission from ultrarelativistic jet obtained by Ioka et al. (2005). We suggest to explain this variability by the fact that the motion of the emitting shell is no longer ultrarelativistic at this time.
description: 6 pages, 7 figures, Astronomy Letters, 2007, 33, 797, The on-line data tables and the original text in Russian can be found at http://hea.iki.rssi.ru/grb/060526/indexeng.html
Representation of the Short-Range Interactions in Liquid Helium via Modified Hard Sphere Potentials
Creators: name: Vakarchuk, I. O.
name: Rovenchak, A. A.
Publisher: name: arXiv
Year: 2001
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: In this paper we propose five different modifications of the hard sphere potential for the modeling a short-range repulsion and the calculation of thermodynamic and transport properties of liquid He4. We calculate the potential energy, the total energy, and the sound velocity at T=0 K. It is shown that three of the proposed potentials give a satisfactory description of these properties.
description: 7 pages, 4 figures
On the Variability of Gamma-Ray Burst Afterglows - A Possibility of a Transition to Nonrelativistic Motion
Creators: name: Burenin, R. A.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: Variability on time scales δt < t is observed in many gamma-ray burst afterglows. It is well known that there should be no such variability if the afterglow is emitted by external shock, which is produced by the interaction of ultrarelativistic ejecta with the ambient interstellar medium, within the framework of simple models. The corresponding constraints were established by Ioka et al. (2005) and in some cases are inconsistent with observations. On the other hand, if the motion is not relativistic, then the fast variability of the afterglow can be explained much more easily. In this connection we discuss various estimates of the time of the transition to subrelativistic motion in GRB source. We point out, that this transition should occur on an observed time scale of ~10 days. In the case of a higher density of the ambient interstellar medium ~10^2-10^4 cm^{-3} or dense stellar wind with \dot M ~ 10^{-5} - 10^{-4} M_\odot/year the transition to a subrelativistic motion can occur on a time scale of ~1 day. These densities may well be expected in star-forming regions and around massive Wolf-Rayet stars.
description: 3 pages, Astronomy Letters, 33, 804, The original text in Russian can be found at http://hea.iki.rssi.ru/grb/060526/pgrbvar.pdf
Stratifications with respect to actions of real reductive groups
Creators: name: Heinzner, Peter
name: Schwarz, Gerald W.
name: Stoetzel, Henrik
Publisher: name: arXiv
Year: 2006
Subjects: subject: Complex Variables (math.CV)
subject: FOS: Mathematics
subject: 32M05

description: We study the action of a real reductive group G on a real submanifold X of a K"ahler manifold Z. We suppose that the action of G extends holomorphically to an action of a complex reductive group and is Hamiltonian with respect to a compatible maximal compact subgroup of the complex reductive group. There is a corresponding gradient map obtained from a Cartan decomposition of G. We obtain a Morse like function on X. Associated to its critical points are various sets of semistable points which we study in great detail. In particular, we have G-stable submanifolds of X which are called pre-strata. In case that the gradient map is proper, the pre-strata form a decomposition of X and in case that X is compact they are the strata of a Morse type stratification of X. Our results are generalizations of results of Kirwan obtained in the case that X=Z is compact and the group itself is complex reductive.
description: 29 pages, minor errors corrected, referee suggestions implemented
Bioimpedenziometria multifrequenza e forza di presa della mano in differenti condizioni fisiologiche
Creators: name: Santaniello, Maria Grazia
Publisher: name: Università degli Studi di Napoli Federico II
Year: 2015

description: La bioimpedenziometria è un metodo veloce e preciso per valutare la composizione corporea dell'essere umano.
L'analisi della composizione corporea è utilizzata in diversi settori, quali: medicina, antropologia, ergonomia, sport, auxologia.
Recentemente, gli specialisti hanno convogliato energie e risorse nell'approfondimento della correlazione tra CC, stato di salute e prestazione sportiva; ne è emerso che una composizione corporea tendenzialmente ricca di tessuto adiposo (soprattutto con distribuzione addominale o ancor peggio intraddominale), e povera di massa muscolare, è correlata ad una scarsa fitness complessiva (cardio-circolatoria, respiratoria, muscolare, articolare ecc.), ad una scarsa capacità atletico-sportiva e ad un rischio fisico maggiore legato ad eventi infausti quali ipertensione, diabete, obesità, dislipidemie, sindrome metabolica, complicanze cardio-vascolari, patologie articolari e morte prematura.
Nel presente lavoro di tesi ci si è prposti come obiettivo di utilizzare le variabili impedenziometriche prese tal quali e della misura della forza di presa della mano come predittori per una valutazione qualitativa e quantitativa della composizione corporea.
Formation of Supermassive Black Holes by Direct Collapse in Pregalactic Halos
Creators: name: Begelman, Mitchell C.
name: Volonteri, Marta
name: Rees, Martin J.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We describe a mechanism by which supermassive black holes can form directly in the nuclei of protogalaxies, without the need for seed black holes left over from early star formation. Self-gravitating gas in dark matter halos can lose angular momentum rapidly via runaway, global dynamical instabilities, the so-called "bars within bars" mechanism. This leads to the rapid buildup of a dense, self-gravitating core supported by gas pressure - surrounded by a radiation pressure-dominated envelope - which gradually contracts and is compressed further by subsequent infall. These conditions lead to such high temperatures in the central region that the gas cools catastrophically by thermal neutrino emission, leading to the formation and rapid growth of a central black hole. We estimate the initial mass and growth rate of the black hole for typical conditions in metal-free halos with T_vir ~ 10^4 K, which are the most likely to be susceptible to runaway infall. The initial black hole should have a mass of
description: 11 pages, 2 figures, Monthly Notices of the Royal Astronomical Society, in press. Minor revisions
A matter of six inches : theatrical and cultural construction of identity and power in David Mamet’s Oleanna
Creators: name: Rice, Marnie Dawn.
Publisher: name: University of British Columbia
Year: 2009

description: This thesis examines the construction of power and identity in "Oleanna", David Mamet's controversial play about sexual harassment and political correctness. It subjects the play to literary, dramaturgical, performative, psychological, legal and ideological analyses in order to demonstrate how the play alternatively transcends and is weighed down by divisive issues that construct our historical moment. There has not been, in recent memory, a Vancouver production that generated so much media attention and viewer feedback. Mamet has orchestrated a carefully constructed "participatory" event that manipulates his audience into judging and debating issues concerning sexual antagonism on the basis of oppositions of gender, age, status and privilege. On the one hand, Mamet has infuriated many feminists who see "Oleanna" as a manipulative, misogynist and dangerous play that blames women for causing their own oppression. Other critics, conversely, have described it as a stimulating masterpiece that puts a mirror up to contemporary society to show how we are all prone to the use and abuse of power. The crucial questions here are: why does this play incite such opposing responses, how does Mamet manipulate his reading and viewing audience into taking sides in a hot debate about sexual harassment, and whose position, if any, does he privilege? This thesis uses a four part approach. Part One examines how Mamet, through his body of work, critiques cultural distopias within a masculine theatrical and discursive space. Part Two applies a similar analysis to Oleanna to uncover the play's spatially and linguistically masculine framework. Part Three examines the play in performance. Using a semiotic critique, it demonstrates how these cultural and theatrical challenges were alternatively confused and clarified when "Oleanna" was produced in Vancouver in 1994. Finally, Part Four highlights contemporary ideological issues by delving into "Oleanna's" subtext to ask the question: can a constructive social critique be drawn from a play which is so mired in constricting and antagonistic ideologies?
Thermodynamics of the Bose-System with a Small Number of Particles
Creators: name: Vakarchuk, I. O.
name: Rovenchak, A. A.
Publisher: name: arXiv
Year: 2001
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: A theoretical description of the interacting Bose-system is proposed. It is based on the extrapolation of the results obtained for the systems with a small number of particles N=2, 3, 4, etc. to the bulk case of N=\infty. It is shown that already the system with N=12, 13 behaves almost as a bulk in a wide temperature range. Special attention is paid to the phase transition in these systems. The hard sphere potential is used in calculations. The sequence of heat capacity maxima is approximated as C^{max}_N/N\simeq13.6-aN^{-ε} with ε=0.0608 giving the value of bulk heat capacity as 13.6 while experimental value is close to 16. The temperature of λ-transition is estimated as 2.1-2.3 K versus experimental 2.17 K. Quite good qualitative and satisfactory quantitative agreement with the experimental data has been achieved.
description: 12 pages, 5 figures
Primary mass discrimination with the Auger Experiment: the energy spectrum of light elements
Creators: name: Colalillo, Roberta
Publisher: name: Università degli Studi di Napoli Federico II
Year: 2015

description: The Auger Observatory all particle spectrum shows clearly both the ankle at 10^18.7 eV and a strong flux suppression at the highest energies. However with present data it is not yet possible to tell if the suppression is related to the lack of sources which are able to accelerate CR up to these energies or to the loss of energy due to interaction of cosmic rays with CMB (GZK effect). The information on the energy-dependent elemental composition of cosmic rays is one of the most fundamental inputs needed to distinguish among different models on the origin of features of the spectrum. In this work, the energy spectrum of light elements is derived using hybrid and surface detector events collected by the Auger Observatory. In addition, the primary mass discrimination capability of the different proposed upgrades for the Auger detector are discussed.
Calculation of the Condensate Fraction in Liquid Helium-4
Creators: name: Rovenchak, A. A.
name: Vakarchuk, I. O.
Publisher: name: arXiv
Year: 2001
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: We adduce the results of the condensate fraction calculation for liquid helium-4. The method is derived from the first principles and involves minimum assumptions. The only experimental quantity we need in our calculations is the static structure factor which is easily measurable. We use the approximation in which expressions contain one summation in the wave vector space (or one integration it the radius vector space) in order to demonstrate the validity of our method. The computed values of the condensate fraction lie within $8.8 ÷14%$ depending on the model potential for the short-range interaction. This result agrees with recent experimental measurements and numerical estimations.
description: 8 pages, 1 figure
Helium-4 Energy and Specific Heat in Superfluid and Normal Phase
Creators: name: Rovenchak, A. A.
Publisher: name: arXiv
Year: 2002
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: The calculation of the He4 energy and specific heat is carried out in a wide temperature range within the two-time temperature Green functions approach. The approximation improving the random phase approximation is developed providing the correct behaviour of the calculated specific heat at the temperatures $0 < T/T_c < 0.65$ and $T/T_c> 1.32$ where $T_c$ stands for the phase transition point.
description: 10 pages, 2 figures
The Computational Complexity of the Traveling Salesman Problem
Creators: name: Feinstein, Craig Alan
Publisher: name: arXiv
Year: 2006
Subjects: subject: Computational Complexity (cs.CC)
subject: FOS: Computer and information sciences

description: In this note, we show that the Traveling Salesman Problem cannot be solved in polynomial-time on a classical computer.
description: 1 page, made a minor correction
Distributed PID Control for Consensus and Synchronization of Multi-agent Networks
Creators: name: Burbano Lombana, Daniel Alberto
Publisher: name: Università degli Studi di Napoli Federico II
Year: 2015

description: We investigate the use of distributed PID actions to achieve consensus and synchronization in networks of homogeneous and heterogeneous agents. We first analyze the case of distributed PID control on networks with heterogeneous nodes described by first-order linear systems. Convergence of the strategy is proved using appropriate state transformations and Lyapunov functions.

Then, we propose a multiplex proportional-integral approach, for solving consensus problems in networks of heterogeneous n-dimensional node dynamics affected by constant disturbances. The proportional and integral actions are deployed on two different layers across the network, each with its own topology. Furthermore, the contribution of the network topology and node dynamics have been systematically separated giving some sufficient conditions guaranteeing convergence.

Finally, an extension to networks of identical nonlinear node dynamics is presented. We provide local and global stability analysis together with a detailed performance assessment where heterogeneity among nodes and disturbances are considered.

The effectiveness of the theoretical results is illustrated via its application to a representative power grid model recently presented in the literature and also for synchronization in networks of chaotic circuits.
Interleukin-1 receptor antagonist as a novel therapeutic target for obesity
Creators: name: Choi, Sooshin
Publisher: name: The Australian National University
Year: 2014

description: Obesity has become one of the most fast-growing economic burdens in the world. It is associated with increased susceptibility to modern diseases, such as diabetes, cardiovascular diseases, and cancer. One of the common physiological changes in obese individuals is a chronic inflammatory state from increased circulating pro-inflammatory cytokines and adipokines, which are secreted from excessive adipose tissue. Human recombinant interleukin-1 receptor antagonist (IL-1Ra), commercially called Kineret (anakinra), has been prescribed to treat rheumatoid arthritis because it antagonises a pro-inflammatory signalling cascade of interleukin-1. Clinical studies on rheumatism and diabetes have shown that anakinra improved glucose homeostasis and the inflammatory state. This thesis has focused on the effect of anakinra on the diet-induced obesity (DIO) animal model with or without change in dietary fat content. In this study, DIO mimicked common obesity of humans by promoting fast body weight gains, increased fat proportions, and impaired glucose homeostasis. The animal study in this thesis support the notion that anakinra boost the positive effect of dieting but may not be effective in preventing further weight gain in DIO without restricting fat content in diet. With dietary change to regular diet, anakinra treatment helped reduce body weight in DIO by suppressing appetite and energy absorption without changing energy expenditure. In relation to obesity-related diabetic symptoms, in this study, only dietary change improved glucose intolerance in DIO. Anakinra also influenced adipokine profile, including resistin and adiponectin levels. Plasma leptin concentration reduced to normal by dietary change as a consequence of decreased amount of adipose tissue, whereas circulating levels of both resistin and adiponectin were lowered by anakinra. The effect of anakinra on lipid metabolism, however, was not significant. Anakinra could not offset the detrimental effects of high-fat diet in DIO without dietary correction. Peripheral anakinra administration did not reverse weight gains from excessive fat mass due to positive energy balance, glucose intolerance, hyperleptinaemia, and high blood cholesterol in DIO without dietary change. However, a low dose of anakinra alleviated weight gain in DIO by increasing energy expenditure. In conclusion, anakinra effectively helps converting DIO to the healthy state only when accompanied with proper dieting. Therefore, peripheral anakinra administration may potentially be supplementary to dieting in the treatment of common obesity.
title: Regulation and Enforcement of Competition Law in Tanzania’s Telecommunications Sector : Law, Institutional Design and Practice
Creators: name: Temu, Goodluck
Publisher: name: University of Bayreuth
Year: 2021
Subjects: subject: Competition
subject: Regulation
subject: Telecommunication
subject: Enforcement
subject: Institutional frameworks
subject: 340

description: This study focuses on the regulation of Tanzania’s telecommunications sector and enforcement of competition law. The central question under investigation is whether the national telecommunications regulator, the Tanzania Communications Regulatory Authority (TCRA), is well-equipped to enforce competition law in the sector. This question emanates from the TCRA’s design as the sole enforcer of competition law. Except for mergers and acquisitions, which fall under the Fair Competition Commission’s jurisdiction, the TCRA has jurisdiction in all other competition matters. Thus, being both the regulator and competition enforcement authority, one is justified to expect that its design would provide ex-ante pro-competition regulation and proactive and effective ex-post regulation and competition law enforcement. That is not the case. While the TCRA stands as a promising regulator, its design and capacities are only limited to the sector’s ex-ante technical regulation. It has fallen short on competition enforcement on an ex-post basis. Although there is a framework that empowers the Authority to enforce competition, there is no actual enforcement because of the existing legal and institutional weaknesses. Thus, as it stands now, in the absence of significant legal and institutional overhaul, the TCRA cannot effectively enforce competition in the sector. This study is primarily qualitative. It has taken an analytical approach in answering research questions, which probes into the regulator’s efficacy in addressing competition matters in the sector. In a pyramidal fashion, it builds a base by generally introducing telecommunications. It then proceeded to introduce regulation and competition as applicable in the telecommunications sector. In so doing, the study analyzes relevant policies, laws, regulations, and practices, among others, to ascertain the extent to which they promote effective competition. Based on evaluation criteria inspired by literature from Tanzania and other jurisdictions, the study examines the efficacy of the TCRA as an exclusive competition enforcement authority. The examined aspects include the sufficiency of the legal mandate, the sufficiency of the procedural framework, the regulator’s institutional design, the regulatory independence, and the sufficiency of resources.
Statistical Parameters of the Novel "Perekhresni stezhky" ("The Cross-Paths") by Ivan Franko
Creators: name: Buk, Solomija
name: Rovenchak, Andrij
Publisher: name: arXiv
Year: 2005
Subjects: subject: Computation and Language (cs.CL)
subject: FOS: Computer and information sciences

description: In the paper, a complex statistical characteristics of a Ukrainian novel is given for the first time. The distribution of word-forms with respect to their size is studied. The linguistic laws by Zipf-Mandelbrot and Altmann-Menzerath are analyzed.
description: 11 pages
Menzerath-Altmann Law for Syntactic Structures in Ukrainian
Creators: name: Buk, Solomija
name: Rovenchak, Andrij
Publisher: name: arXiv
Year: 2007
Subjects: subject: Computation and Language (cs.CL)
subject: FOS: Computer and information sciences

description: In the paper, the definition of clause suitable for an automated processing of a Ukrainian text is proposed. The Menzerath-Altmann law is verified on the sentence level and the parameters for the dependences of the clause length counted in words and syllables on the sentence length counted in clauses are calculated for "Perekhresni Stezhky" ("The Cross-Paths"), a novel by Ivan Franko.
description: 8 pages; submitted to the Proceedings of the International scientific conference on Modern Methods in Linguistics held in honour of the anniversary of Prof. Gabriel L. Altmann (October 23rd and 24th, 2006, Budmerice Castle, Slovakia)
Observation of a near-threshold enhancement in the ωϕmass spectrum from the doubly OZI suppressed decay J/ψ\to γωϕ
Creators: name: BES Collaboration
Publisher: name: arXiv
Year: 2006
Subjects: subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: An enhancement near threshold is observed in the ωϕinvariant mass spectrum from the doubly OZI suppressed decays of J/ψ\to γωϕ, based on a sample of 5.8 X 10^7 J/ψevents collected with the BESII detector. A partial wave analysis shows that this enhancement favors J^P = 0^+, and its mass and width are M = 1812^{+19}_{-26} (stat) +- 18 (syst) MeV/c^2 and Γ= 105+-20 (stat) +- 28$ (syst) MeV/c^2. The product branching fraction is determined to be B(J/ψ\to γX) B(X\toωϕ) = (2.61 +- 0.27 (stat) +- 0.65$ (syst)) X 10^{-4}.
description: Accepted by PRL, the version to be appeared in PRL
Energy evolution in time-dependent harmonic oscillator with arbitrary external forcing
Creators: name: Kuzmin, A. V.
name: Robnik, Marko
Publisher: name: arXiv
Year: 2006
Subjects: subject: Exactly Solvable and Integrable Systems (nlin.SI)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: The classical Hamiltonian system of time-dependent harmonic oscillator driven by the arbitrary external time-dependent force is considered. Exact analytical solution of the corresponding equations of motion is constructed in the framework of the technique (Robnik M, Romanovski V G, J. Phys. A: Math. Gen. {\bf 33} (2000) 5093) based on WKB approach. Energy evolution for the ensemble of uniformly distributed w.r.t. the canonical angle initial conditions on the initial invariant torus is studied. Exact expressions for the energy moments of arbitrary order taken at arbitrary time moment are analytically derived. Corresponding characteristic function is analytically constructed in the form of infinite series and numerically evaluated for certain values of the system parameters. Energy distribution function is numerically obtained in some particular cases. In the limit of small initial ensemble's energy the relevant formula for the energy distribution function is analytically derived.
description: 16 pages, 5 figures
Efficacy of rehabilitation programs for improving muscle strength in people with hip or knee osteoarthritis: a systematic review with meta-analysis
Creators: name: Zacharias, Anita
name: Green, Rodney
name: Semciw, Adam
name: Kingsley, Michael
name: Pizzari, Tania
Publisher: name: La Trobe
Year: 2024
Subjects: classificationCode: 420702
subject: Exercise physiology

description: To analyse the effect of exercise-based rehabilitation programs for improving lower limb muscle strength in individuals with hip or knee osteoarthritis (OA). A systematic search utilizing seven databases identified randomized controlled trials (RCTs) evaluating lower limb strength outcomes of exercise-based interventions for participants with hip or knee OA. All studies were screened for eligibility and methodological quality. Quality of evidence was assessed using Grading of Recommendation, Assessment, Development and Evaluation (GRADE) approach. Data were pooled and meta-analyses performed where appropriate.Forty RCTs were included and the majority (77%) involved resistance based exercise programs. For knee OA populations, there was high quality evidence for improved knee extension (standardized mean difference (SMD)=0.47, 95% confidence intervals (CI) 0.29, 0.66) and flexion strength (SMD=0.74, 95% CI 0.56, 0.92) with low-intensity resistance program when compared to a control at short term (ST) follow-up. There was moderate quality evidence for a large effect favouring high-intensity resistance programs (SMD=0.76, 95% CI 0.47, 1.06) when compared to a control. This effect was sustained at intermediate term (IT) follow-up (SMD=0.80, 95% CI 0.44, 1.17). Few studies reported on outcomes at long term (LT) follow-up. Only one study reported on a population with hip OA. When compared to a control group, high-intensity resistance exercise demonstrated moderate quality of evidence for large and sustained improvements for knee muscle strength in knee OA patients. Further work is needed to compare different modes of exercise at a LT follow-up for knee OA patients and to address the dearth of literature evaluating exercise interventions in people with hip OA.
Efficacy of rehabilitation programs for improving muscle strength in people with hip or knee osteoarthritis: a systematic review with meta-analysis
Creators: name: Zacharias, Anita
name: Green, Rodney
name: Semciw, Adam
name: Kingsley, Michael
name: Pizzari, Tania
Publisher: name: La Trobe
Year: 2020
Subjects: subject: 110602 Exercise Physiology
subject: FOS: Health sciences

description: © 2014 Osteoarthritis Research Society International.
To analyse the effect of exercise-based rehabilitation programs for improving lower limb muscle strength in individuals with hip or knee osteoarthritis (OA). A systematic search utilizing seven databases identified randomized controlled trials (RCTs) evaluating lower limb strength outcomes of exercise-based interventions for participants with hip or knee OA. All studies were screened for eligibility and methodological quality. Quality of evidence was assessed using Grading of Recommendation, Assessment, Development and Evaluation (GRADE) approach. Data were pooled and meta-analyses performed where appropriate.Forty RCTs were included and the majority (77%) involved resistance based exercise programs. For knee OA populations, there was high quality evidence for improved knee extension (standardized mean difference (SMD)=0.47, 95% confidence intervals (CI) 0.29, 0.66) and flexion strength (SMD=0.74, 95% CI 0.56, 0.92) with low-intensity resistance program when compared to a control at short term (ST) follow-up. There was moderate quality evidence for a large effect favouring high-intensity resistance programs (SMD=0.76, 95% CI 0.47, 1.06) when compared to a control. This effect was sustained at intermediate term (IT) follow-up (SMD=0.80, 95% CI 0.44, 1.17). Few studies reported on outcomes at long term (LT) follow-up. Only one study reported on a population with hip OA. When compared to a control group, high-intensity resistance exercise demonstrated moderate quality of evidence for large and sustained improvements for knee muscle strength in knee OA patients. Further work is needed to compare different modes of exercise at a LT follow-up for knee OA patients and to address the dearth of literature evaluating exercise interventions in people with hip OA.
The Ligo-Ligo cross correlation for the detection of relic scalar gravitational waves
Creators: name: Corda, Christian
Publisher: name: arXiv
Year: 2006
Subjects: subject: Astrophysics (astro-ph)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: In the earlier work arXiv:0706.3782 we studied the cross correlation between the Virgo interferometer and the MiniGRAIL resonant sphere for the detection of relic scalar gravitational waves (SGWs). We have shown that the overlap reduction function for the cross correlation between Virgo and the monopole mode of MiniGRAIL is very small, but a maximum was also found in the correlation at about 2710Hz, in the range of the MiniGRAIL sensitivity. In this paper the analysis is improved. After carefully reviewing the response function of interferometers to SGWs directly in the gauge of the local observer, the result is used to analyze the cross correlation between the two LIGO interferometers in their advanced configuration for a potential detection of relic SGWs and to release a lower bound for the integration time of such a detection. By using a new, frequency-dependent, overlap reduction function, a comparison with previous low-frequency approximations is therefore discussed. This is the first time that such a cross-correlation is computed in all the frequency spectrum of relic SGWs. The computation of a better signal to noise ratio is very important to understand if a scalar component of GWs is present at high frequency. With the new overlap reduction function, an order of magnitude is gained concerning the integration time for detecting the relic SGWs' signal. This could be very important for a potential detection if advanced projects further improve their sensitivity. .
description: 18 pages, 3 figures. Definitive version accepted for publication in New Astronomy. Sequel of arXiv:0706.3782
Slow Diffeomorphisms of a Manifold with Two Dimensions Torus Action
Creators: name: Fuchs, Ronit
Publisher: name: arXiv
Year: 2006
Subjects: subject: Dynamical Systems (math.DS)
subject: FOS: Mathematics
subject: 37Cxx

description: The uniform norm of the differential of the n-th iteration of a diffeomorphism is called the growth sequence of the diffeomorphism. In this paper we show that there is no lower universal growth bound for volume preserving diffeomorphisms on manifolds with an effective two dimensions torus action by constructing a set of volume-preserving diffeomorphisms with arbitrarily slow growth.
description: 12 pp
EPR spectrum via entangled states for an Exchange-Coupled Dimer of Single-Molecule Magnets
Creators: name: Chang-Tan, Xu
name: J-Q, Liang
Publisher: name: arXiv
Year: 2006
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: Multi-high-frequency electron paramagnetic resonance(EPR) spectrum for a supermolecular dimer $[ Mn_4]_2$ of single-molecule magnets recently reported [S. Hill, R. S. Edwards, N. Aliaga-Alcalde and G. Christou(HEAC), Science 302, 1015 (2003)] is studied in terms of the perturbation method in which the high-order corrections to the level splittings of degenerate states are included. It is shown that the corresponding eigenvectors are composed of entangled states of two molecules. The EPR-peak positions are calculated in terms of the eigenstates at various frequencies. From the best fit of theoretical level splittings with the measured values we obtain the anisotropy constant and exchange coupling which are in agreement with the corresponding values of experimental observation. Our study confirms the prediction of HEAC that the two $Mn_4$ units within the dimer are coupled quantum mechanically by the antiferromagnetic exchange interaction and the supermolecular dimer behaviors in analogy with artificially fabricated quantum dots.
description: 16 pages,2 figures, 2 tables
Letter from C. Gardiner Johnson and Company to Frank Hewer, March 9, 1908
Creators: name: Johnson, C. Gardiner
Publisher: name: The University of British Columbia
Year: 2017

description: Letter to Frank Hewer from C. Gardiner and Company, dated March 9, 1908; written on company letterhead. The letter is regarding the possible shipment of apples and onions to Australia.
The Launching of Cold Clouds by Galaxy Outflows. IV. Cosmic-Ray-Driven Acceleration
Creators: name: Brüggen, Marcus
name: Scannapieco, Evan
Publisher: name: arXiv
Year: 2020
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: We carry out a suite of simulations of the evolution of cosmic-ray (CR) driven, radiatively-cooled cold clouds embedded in hot material, as found in galactic outflows. In such interactions, CRs stream towards the cloud at the Alfvén speed, which decreases dramatically at the cloud boundary, leading to a bottleneck in which pressure builds up in front of the cloud. At the same time, CRs stream along the sides of the cloud, forming a boundary layer where large filaments develop. Shear in this boundary layer is the primary mode of cloud destruction, which is relatively slow in all cases, but slowest in the cases with the lowest Alfvén speeds. Thus the CR ray pressure in the bottleneck region has sufficient time to accelerate the cold clouds efficiently. Furthermore, radiative cooling has relatively little impact on these interactions. Our simulations are two-dimensional and limited by a simplified treatment of cosmic-ray dynamics, the neglect of CR heating, and an idealized magnetic field geometry. Nevertheless, our results suggest that cosmic rays, when acting as the primary source of momentum input, are capable of accelerating clouds to velocities comparable to those observed in galaxy outflows.
description: 14 pages, 10 figures, ApJ in press
Experimental validation of a three-dimensional heat transfer model within the scala tympani with application to magnetic cochlear implant surgery
Creators: name: Esmailie, Fateme
name: Francoeur, Mathieu
name: Ameel, Tim
Publisher: name: arXiv
Year: 2020
Subjects: subject: Applied Physics (physics.app-ph)
subject: Biological Physics (physics.bio-ph)
subject: Computational Physics (physics.comp-ph)
subject: Fluid Dynamics (physics.flu-dyn)
subject: Medical Physics (physics.med-ph)
subject: FOS: Physical sciences

description: Magnetic guidance of cochlear implants is a promising technique to reduce the risk of physical trauma during surgery. In this approach, a magnet attached to the tip of the implant electrode array is guided within the scala tympani using a magnetic field. After surgery, the magnet must be detached from the implant electrode array via localized heating and removed from the scala tympani which may cause thermal trauma. Objectives: The objective of this work is to experimentally validate a three-dimensional (3D) heat transfer model of the scala tympani which will enable accurate predictions of the maximum safe input power to avoid localized hyperthermia when detaching the magnet from the implant electrode array. Methods: Experiments are designed using a rigorous scale analysis and performed by measuring transient temperatures in a 3D-printed scala tympani phantom subjected to a sudden change in its thermal environment and localized heating via a small heat source. Results: The measured and predicted temperatures are in good agreement with an error less than 6$\%$. Conclusions: The validated 3D heat transfer model of the scala tympani is finally applied to evaluate the maximum safe input power to avoid localized hyperthermia when detaching the magnet. For the most conservative case where all boundaries except the insertion opening are adiabatic, the power required to release the magnet attached to the implant electrode array by 1 mm$^3$ of paraffin is approximately half of the predicted maximum safe input power. Significance: This work will enable the design of a thermally safe magnetic cochlear implant surgery procedure.
description: This paper is submitted to the IEEE transactions on biomedical engineering and it is under review
IllustrisTNG and S2COSMOS: possible conflicts in the evolution of neutral gas and dust
Creators: name: Millard, Jenifer S.
name: Diemer, Benedikt
name: Eales, Stephen A.
name: Gomez, Haley L.
name: Beeston, Rosemary
name: Smith, Matthew W. L.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: We investigate the evolution in galactic dust mass over cosmic time through i) empirically derived dust masses using stacked submillimetre fluxes at 850um in the COSMOS field, and ii) dust masses derived using a robust post-processing method on the results from the cosmological hydrodynamical simulation IllustrisTNG. We effectively perform a self-calibration of the dust mass absorption coefficient by forcing the model and observations to agree at low redshift and then compare the evolution shown by the observations with that predicted by the model. We create dust mass functions (DMFs) based on the IllustrisTNG simulations from 0 < z < 0.5 and compare these with previously observed DMFs. We find a lack of evolution in the DMFs derived from the simulations, in conflict with the rapid evolution seen in empirically derived estimates of the low redshift DMF. Furthermore, we observe a strong evolution in the observed mean ratio of dust mass to stellar mass of galaxies over the redshift range 0 < z < 5, whereas the corresponding dust masses from IllustrisTNG show relatively little evolution, even after splitting the sample into satellites and centrals. The large discrepancy between the strong observed evolution and the weak evolution predicted by IllustrisTNG plus post-processing may be explained by either strong cosmic evolution in the properties of the dust grains or limitations in the model. In the latter case, the limitation may be connected to previous claims that the neutral gas content of galaxies does not evolve fast enough in IllustrisTNG.
description: 17 pages, 8 figures (+ 1 appendix, 2 figures). Accepted for publication in MNRAS