cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Common Origin of Soft mu-tau and CP Breaking in Neutrino Seesaw and the Origin of Matter
Creators: name: Ge, Shao-Feng
name: He, Hong-Jian
name: Yin, Fu-Rong
Publisher: name: arXiv
Year: 2010
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: Neutrino oscillation data strongly support mu-tau symmetry as a good approximate flavor symmetry of the neutrino sector, which has to appear in any viable theory for neutrino mass-generation. The mu-tau breaking is not only small, but also the source of Dirac CP-violation. We conjecture that both discrete mu-tau and CP symmetries are fundamental symmetries of the seesaw Lagrangian (respected by interaction terms), and they are only softly broken, arising from a common origin via a unique dimension-3 Majorana mass-term of the heavy right-handed neutrinos. From this conceptually attractive and simple construction, we can predict the soft mu-tau breaking at low energies, leading to quantitative correlations between the apparently two small deviations θ_{23} - 45^o and θ_{13} - 0^o. This nontrivially connects the on-going measurements of mixing angle θ_{23} with the upcoming experimental probes of θ_{13}. We find that any deviation of θ_{23} - 45^o must put a lower limit on θ_{13}. Furthermore, we deduce the low energy Dirac and Majorana CP violations from a common soft-breaking phase associated with mu-tau breaking in the neutrino seesaw. Finally, from the soft CP breaking in neutrino seesaw we derive the cosmological CP violation for the baryon asymmetry via leptogenesis. We fully reconstruct the leptogenesis CP-asymmetry from the low energy Dirac CP phase and establish a direct link between the cosmological CP-violation and the low energy Jarlskog invariant. We predict new lower and upper bounds on the θ_{13} mixing angle, 1^o < θ_{13} < 6^o. In addition, we reveal a new hidden symmetry that dictates the solar mixing angle θ_12 by its group-parameter, and includes the conventional tri-bimaximal mixing as a special case, allowing deviations from it.
description: 60pp, JCAP in Press, v2: only minor stylistic refinements (added Daya Bay's future sensitivity in Figs.2+8, shortened some eqs, added new Appendix-A and some references), comments are welcome.
Mass-degenerate Heavy Vector Mesons at Hadron Colliders
Creators: name: Piai, Maurizio
name: Round, Mark
Publisher: name: arXiv
Year: 2009
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We study the LHC phenomenology of a couple of mass-degenerate heavy new gauge bosons with the quantum numbers of the Z and photon. We give a leading-order estimate of the number of events expected in Drell-Yan processes in terms of the parameters of the model (mass and coupling) and of the LHC machine specifications (luminosity and energy). We consider the feasibility of measuring a forward-backward asymmetry for various choices of the parameters and estimate the potential reach. We comment on how the results may affect future collider design and the results for a specific model of electro-weak symmetry breaking by way of example.
Estimating Energy-Momentum and Angular Momentum Near Null Infinity
Creators: name: Helfer, Adam D.
Publisher: name: arXiv
Year: 2009
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: The energy-momentum and angular momentum contained in a spacelike two-surface of spherical topology are estimated by joining the two-surface to null infinity via an approximate no-incoming-radiation condition. The result is a set of gauge-invariant formulas for energy-momentum and angular momentum which should be applicable to much numerical work; it also gives estimates of the finite-size effects.
description: 26 pp. Corrections to the section on evolution. Version accepted by Phys. Rev. D
Automorphic properties of low energy string amplitudes in various dimensions
Creators: name: Green, Michael B.
name: Russo, Jorge G.
name: Vanhove, Pierre
Publisher: name: arXiv
Year: 2010
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: This paper explores the moduli-dependent coefficients of higher derivative interactions that appear in the low-energy expansion of the four-graviton amplitude of maximally supersymmetric string theory compactified on a d-torus. These automorphic functions are determined for terms up to order D^6R^4 and various values of d by imposing a variety of consistency conditions. They satisfy Laplace eigenvalue equations with or without source terms, whose solutions are given in terms of Eisenstein series, or more general automorphic functions, for certain parabolic subgroups of the relevant U-duality groups. The ultraviolet divergences of the corresponding supergravity field theory limits are encoded in various logarithms, although the string theory expressions are finite. This analysis includes intriguing representations of SL(d) and SO(d,d) Eisenstein series in terms of toroidally compactified one and two-loop string and supergravity amplitudes.
description: 80 pages. 1 figure. v2:Typos corrected, footnotes amended and small clarifications. v3: minor corrections. Version to appear in Phys Rev D
Structure and process in the Christallerian system
Creators: name: Mulligan, Gordon Fredrick
Publisher: name: University of British Columbia
Year: 2010

description: This dissertation deals with theoretical central place systems of the Christallerian type. By employing a form-function-process methodology the author attempts to embrace central place structure and process in a consistent and general manner. Attention is first given to systemic structure as depicted by the general hierarchial model of city size. Given this structural framework, interest is then turned to modelling within-systems adoptive processes (the issue of innovation is not considered). Finally, the effects of different types of parametric shifts - both continuous (instantaneous) and discrete (long run) - are examined within the context of the established models. By eliciting a number of law-like statements the author is intending to lay some of the foundations for a general theory of inter-urban growth and development. The scope and content of the more relevant assertions are presently outlined. It is demonstrated that certain attributes of individual central places are intimately related to overall systemic properties. For instance, the inverse of the basic/non-basic ratio of a system's largest city is shown to be identical to the urban/rural population balance for the entire system. In addition a novel type of input-output model is introduced so as to illustrate the economic base underpinnings of the hierarchial model. Special concern is given to the service multipliers in the structural argument: these are shown to reflect employment and demand ratios for the various hierarchial activities. Then the effects of shifts in these multipliers upon central place properties are examined within a comparative statics framework. The polarization of hierarchial and wave-like diffusionary patterns is established by showing the former (latter) to accompany: (i) systemic openness (closure), (ii) area! (linear) dimensionality, (iii) slow (rapid) decline in the service multipliers, and (iv) low (high) frictional constraints on spatial interaction. Finally, temporal (long run population changes) and spatial (allocation of nonnodal activities) variation are shown to induce characteristic changes in such diffusionary patterns.
Apartheid Spies: The Character, the Reader, and the Censor in André Brink’s A Dry White Season
Creators: name: Iannaccaro, Giuliana
Publisher: name: Università degli  Studi di Milano
Year: 2014
Subjects: South Africa; anti-apartheid literature; Brink; spying-gaze; censorship

description: André Brink’s novel A Dry White Season (1979) is strictly connected with the time and place in which it was written. Its dialogue with the real Johannesburg of the late Seventies is manifest: characters and plot are grafted on real events, like the youth riots in Soweto (1976) and the death of Steve Biko in the hands of the Security Police (1977). Brink’s early novels have been commended for their political commitment, but also criticized for being ‘easily’ documentary. Yet, A Dry White Season’s structure is rather complex, and its fabricated nature is shown to the reader through the device of the double internal narrator and the considerable number of ‘documents’ discovered and employed – each telling its own truth. The metaphor of the ‘spying gaze’ proposed here is useful in order to point out the interconnections between story and history, as it shows the way in which a complex and multi-layered narrative structure succeeds in both reflecting and exposing the intricate apartheid system devised to control and ‘discipline’ its own citizens. In the novel, most of the characters intrude into the life of the others and are intruded upon, included peaceful citizens who are obliged to defend themselves from an oppressive and violent police State. At the same time, also the reader is drawn into the dangerous spying game, above all when he/she is introduced into that notorious site of interrogation, torture and detention which was the Johannesburg Police Station in John Vorster Square. The last part of the essay takes into consideration the South African censorship system in force at the time, to show that the activity of surveillance is both intrinsic to the narration and external, related to the conditions of the novel’s composition and appearance on the literary market.
description: Altre Modernità, No 11 (2014): Spionaggi
title: Indication with Further Analysis of Mispricing and Barriers in Arbitrage in Chinese Option Market A Five-Month Study on Sample Option
Creators: name: Feng, Hao
Publisher: name: Utah State University
Year: 2013

description: This thesis presents indication of mispricing of options in the Chinese option market, focusing on the very first and the most representative option in the Chinese option market. I used the Black-Scholes model to calculate the option price and compare the result to its real performance. The mispricing of sample option is statistically significant. With further analysis, I found out that underlying asset price and its volatility are the possible factors that most likely lead to mispricing. Because of the consistent mispricing, I investigated the industrial regulations from the China Securities Regulatory Commission (CSRC) and found proof with examples that barriers to arbitrages do affect the consistent mispricing. The barriers prevent arbitrageurs to take full advantage of mispriced options and stocks.
Search for new physics in charm processes
Creators: name: Fajfer, Svjetlana
name: Dorsner, Ilja
name: Kamenik, Jernej F.
name: Kosnik, Nejc
Publisher: name: arXiv
Year: 2009
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: Charm procceses are usually not considered to be favorable candidates in the search for new physics. Recent disagreement between experimental and lattice QCD results on the D_s decay constant has motivated us to systematically reinvestigate role of leptoquarks in rare charm meson decays. We include constrains coming from the light meson decays.
description: Presented at FLAVIAnet workshop: low energy constraints on extensions of the Standard model, Kazimierz
3D nanostructuring of La0.7Sr0.3MnO3 thin film surfaces by scanning tunnelling microscopy
Creators: name: Liu, Yun
name: Monsen, Å. F.
name: Boschker, J. E.
name: Wahlström, E.
name: Borg, A.
name: Tybell, T.
Publisher: name: arXiv
Year: 2009
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Nanoscale 3D surface modifications, by scanning tunneling microscopy under ambient conditions, of La0.7Sr0.3MnO3 thin films have been performed. It was demonstrated that there are well defined combinations of bias voltages and scan speeds which allow for controlled surface structuring. Lateral structures with sizes down to 1.5 nm are possible to obtain. Moreover, it is possible to reproducibly control the depth of etching with half a unit cell precision, enabling design of 3D surface structures and control of the surface termination of La0.7Sr0.3MnO3 through etching.
description: This paper has been withdrawn by the author due to a error fig1
Comparison of electromagnetic field solvers for the 3D analysis of plasmonic nano antennas
Creators: name: Hoffmann, Johannes
name: Hafner, Christian
name: Leidenberger, Patrick
name: Hesselbarth, Jan
name: Burger, Sven
Publisher: name: arXiv
Year: 2009
Subjects: subject: Optics (physics.optics)
subject: Computational Physics (physics.comp-ph)
subject: FOS: Physical sciences

description: Plasmonic nano antennas are highly attractive at optical frequencies due to their strong resonances - even when their size is smaller than the wavelength - and because of their potential of extreme field enhancement. Such antennas may be applied for sensing of biological nano particles as well as for single molecule detection. Because of considerable material losses and strong dispersion of metals at optical frequencies, the numerical analysis of plasmonic antennas is very demanding. An additional difficulty is caused when very narrow gaps between nano particles are utilized for increasing the field enhancement. In this paper we discuss the main difficulties of time domain solvers, namely FDTD and FVTD and we compare various frequency domain solvers, namely the commercial FEM packages JCMsuite, Comsol, HFSS,and Microwave Studio with the semi-analytic MMP code that may be used as a reference due to its fast convergence and high accuracy.
description: 12 pages, SPIE conference, Errata added on last page
title: Enhancing Solidarity and Cooperation Social Identity Theory and China's Involvement in Africa
Creators: name: Aston, David Thomas
Publisher: name: Utah State University
Year: 2013

description: China has increasingly intensified engagement with Africa since 2000. In 2001, trade between Africa and China was at $10.6 billion. In 2011, trade had exploded to over $160 billion.1 Chinese investment in Africa has grown from tens of millions of dollars to over $10 billion.2 This surge of trade and investment in Africa has not yet been matched by any other global power. Recently, Hu Jintao doubled China’s loan commitment to Africa to over $20 billion. This increase of trade and investment reflects a growing Chinese influence in Africa.3 What caused this increased Chinese interest in a continent that has been overlooked by the rest of the world?
As China increases its influence among the world’s major powers, many argue that it will soon confront the United States. Whether or not this happens will be determined by how successful China is at creating new “friends” in the international system. As the United States’ primacy maintains a high level of cultural and economic influence throughout the world, China may have to create new economic, political, and social norms in order to attract new partners. These partners will help offset the United States’ dominating influence over the global political order. This paper argues that an increased level of trade and investment in Africa is one of China’s strategies to create a new identity by engaging in Social Creativity, as Social Identity Theory (SIT) specifies.
First, current theories of why China is engaging in Africa will be evaluated. This evaluation includes theories of Liberalism, Colonialism/Neo-colonialism, and Neo-realism. The most effective at answering the question of why China invests so heavily in Africa is neo-realism, arguing that China engages Africa to ascertain resources and gain a geopolitical advantage in the region,. However, this does not fully explain Chinese behavior in the region. The paper will then explain the origins and applications of Social Identity Theory in explaining China’s Africa policy. After laying out the theoretical discussion, the paper will analyze two case studies. The first is a comprehensive look at China’s behavior and policy towards Africa as a group of states. The second is an investigation of how SIT applies on a micro level, using statements and news sources to analyze the case of Zimbabwe.
CIFRA National Survey: Uruguay July 2014
Creators: name: CIFRA, In Bogliaccini, Juan, And Queirolo Rosario Laboratorio De Opinión Pública And Redes Sociales En Uruguay Collection (Social Networks And Public Opinion Lab Collection)
Publisher: name: Roper Center for Public Opinion Research
Year: 2021

description: Main problems in country; likability of political leaders; voting in primary elections; attitudes towards different political parties; approval of President José Mujica; approval of Parliament performance; political spectrum position; political spectrum position of political leaders; past voting history; technical director of the Uruguayan football (soccer) team; legalization of marijuana; potential future voting choices; running mates of presidential candidates; government attention to forestry; relations with Argentina; law on debate before elections; economic situation of the country; future financial expectations; approval of district mayor. National Agency for Research and Innovation (ANII) Collection.
title: Miniature Wire Boom System for Cubsat Application
Creators: name: Bradford, Keith R.
Publisher: name: Utah State University
Year: 2013

description: Small satellites and especially CubeSats are becoming more widely used to study the space environment. The Ionosphere is one region of particular interest, more specifically the altitude region of 85 km to 600 km. Small satellites are particularly useful for studying this region of the Earth’s atmosphere since the effects of aerodynamic drag on a CubeSat are much less than those on a larger more traditional satellite, thus the lifespan of a CubeSat in this region is much longer. In order to observe the electric field in space, the electric potential between various points needs to be measured. These measurements are most effectively taken when the sensors are located several meters from one another. A deployment mechanism is needed in order to position the sensors at these distances. A miniature wire boom deployment system was developed by Utah State University and the Space Dynamics Laboratory in Logan, Utah which accomplishes this task. The deployment system is capable of deploying sensors up to 5 meters in 4 directions using a piezoelectric motor controlled mechanism. This system conforms to all CubeSat specifications and is modular so it can be integrated into any CubeSat application. Recently this miniature wire boom deployment system was integrated into the two satellites of the DICE program.
title: Breaking Tradition: My Journey of Becoming a Teacher of Chinese as a Foreign Language
Creators: name: Chen, Wenrui
Publisher: name: Utah State University
Year: 2013

description: This portfolio is a completion of the author’s work through the Master of Second Language Teaching program. The portfolio contains the author’s teaching philosophy, reflection on the author’s teaching and that of others, three artifacts, and an annotated bibliography. The teaching philosophy discusses what the author believes constitutes effective language teaching, such as a learned-centered classroom, communicative language teaching, and effective assessment. The artifacts are papers wrote for the MSLT courses to support the author’s teaching philosophy. The literacy artifact emphasizes the importance of reading and writing in teaching Chinese as a foreign language. The culture artifact explores lesson plans that raise learners’ culture awareness. The language artifact investigates the impact of living in the country where people speak the target language. At the end, the annotated bibliography includes books and articles that influenced the author’s teaching beliefs and practices.
Cryogenic instrumentation for fast current measurement in a silicon single electron transistor
Creators: name: Ferrus, T.
name: Hasko, D. G.
name: Morrissey, Q. R.
name: Burge, S. R.
name: Freeman, E. J.
name: French, M. J.
name: Lam, A.
name: Creswell, L.
name: Collier, R. J.
name: Williams, D. A.
name: Briggs, G. A. D.
Publisher: name: arXiv
Year: 2009
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: We present a realisation of high bandwidth instrumentation at cryogenic temperatures and for dilution refrigerator operation that possesses advantages over methods using radio-frequency single electron transistor or transimpedance amplifiers. The ability for the low temperature electronics to carry out faster measurements than with room temperature electronics is investigated by the use of a phosphorous-doped single-electron transistor. A single-shot technique is successfully implemented and used to observe the real time decay of a quantum state. A discussion on various measurement strategies is presented and the consequences on electron heating and noise are analysed.
description: 18 pages, 6 figures, published in J. Appl. Phys
title: Spatial Model of Grazing in Southeast Utah
Creators: name: Allen, Tyler
Publisher: name: Utah State University
Year: 2013

description: The goal of this study is to model potential grazing values in southeast Utah and to provide a framework for others to follow in creating their own analysis. Grazing is a vital part of the community and history of southeast Utah. With new technology and new information, there is greater potential for more efficient grazing practices. The intention of this project is to provide a systematic approach to the modeling of grazing in southeast Utah on the Colorado Plateau and provide a base from which others may develop more comprehensive models in the future.
Confinement effects on intermediate state flux patterns in mesoscopic type-I superconductors
Creators: name: Berdiyorov, G. R.
name: Hernandez, A. D.
name: Peeters, F. M.
Publisher: name: arXiv
Year: 2009
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: Intermediate state (IS) flux structures in mesoscopic type-I superconductors are investigated within the Ginzburg-Landau theory. In addition to well-established tubular and laminar structures, the strong confinement leads to the formation of (i) a phase of singly quantized vortices, which is typical for type-II superconductors and (ii) a ring of a normal domain at equilibrium. The stability region and the formation process of these IS flux structures are strongly influenced by the geometry of the sample.
description: 5 pages, 4 figures
Neutrino Mass Seesaw Version 3: Recent Developments
Creators: name: Ma, Ernest
Publisher: name: arXiv
Year: 2008
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: The origin of neutrino mass is usually attributed to a seesaw mechanism, either through a heavy Majorana fermion singlet (version 1) or a heavy scalar triplet (version 2). Recently, the idea of using a heavy Majorana fermion triplet (version 3) has gained some attention. This is a review of the basic idea involved, its U(1) gauge extension, and some recent developments.
description: 8 pages, 4 figures, talk at XIII Mexican School of Particles and Fields, San Carlos, Sonora, Mexico, Oct 2008
title: Items to be Included in a Food Safety Handbook for Artisan Cheese Makers
Creators: name: Irish, David A.
Publisher: name: Utah State University
Year: 2013

description: Current written resources for artisan cheese makers include topics concerning cheese history, cheese recipes, budget planning, culture selection, processing parameters, and only limited discussion of food safety associated with cheese manufacturing. Most often food safety discussions center on HACCP, which typically are not included in artisan cheese operation planning. Recent changes in the regulatory landscape, including the Food Safety Modernization Act, make this information timely and needed. This research is designed to identify and collect a majority of topical ideas that should be included in a Food Safety Handbook for Artisan Cheese Makers. Where possible, expansion of the ideas has been included. It is felt that this information, once collected could be put in a handbook for artisan cheese makers that would provide a day-to-day reference manual for making safe, high quality Artisan cheese.
PGNets: Planet mass prediction using convolutional neural networks for radio continuum observations of protoplanetary disks
Creators: name: Zhang, Shangjia
name: Zhu, Zhaohuan
name: Kang, Mingon
Publisher: name: arXiv
Year: 2021
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: Machine Learning (cs.LG)
subject: FOS: Physical sciences
subject: FOS: Computer and information sciences

description: We developed Convolutional Neural Networks (CNNs) to rapidly and directly infer the planet mass from radio dust continuum images. Substructures induced by young planets in protoplanetary disks can be used to infer the potential young planets' properties. Hydrodynamical simulations have been used to study the relationships between the planet's properties and these disk features. However, these attempts either fine-tuned numerical simulations to fit one protoplanetary disk at a time, which was time-consuming, or azimuthally averaged simulation results to derive some linear relationships between the gap width/depth and the planet mass, which lost information on asymmetric features in disks. To cope with these disadvantages, we developed Planet Gap neural Networks (PGNets) to infer the planet mass from 2D images. We first fit the gridded data in Zhang et al. (2018) as a classification problem. Then, we quadrupled the data set by running additional simulations with near-randomly sampled parameters, and derived the planet mass and disk viscosity together as a regression problem. The classification approach can reach an accuracy of 92\%, whereas the regression approach can reach 1$σ$ as 0.16 dex for planet mass and 0.23 dex for disk viscosity. We can reproduce the degeneracy scaling $α$ $\propto$ $M_p^3$ found in the linear fitting method, which means that the CNN method can even be used to find degeneracy relationship. The gradient-weighted class activation mapping effectively confirms that PGNets use proper disk features to constrain the planet mass. We provide programs for PGNets and the traditional fitting method from Zhang et al. (2018), and discuss each method's advantages and disadvantages.
description: 12 pages, 7 figures, accepted to MNRAS
Noncommutative topology and the world's simplest index theorem
Creators: name: van Erp, Erik
Publisher: name: arXiv
Year: 2010
Subjects: subject: Differential Geometry (math.DG)
subject: Functional Analysis (math.FA)
subject: FOS: Mathematics
subject: 58J20, 19K56, 53D10

description: This is an expository article. It discusses an approach to hypoelliptic Fredholm index theory based on noncommutative methods (groupoids, C*-algebras, K-theory). The paper starts with an explicit index theorem for scalar second order differential operators on 3-manifolds that are Fredholm but not elliptic. This low-brow index formula is expressed in terms of winding numbers. We then proceed to show how this theorem is a special case of a much more general index theorem for subelliptic operators on contact manifolds. Finally we discuss the noncommutative topology that is employed in the proof of this theorem. We present these results as an instance in which noncommutative topology is fruitful in proving a very explicit (analytic/geometric) classical result.
description: 17 pages; constants in Theorem 1 corrected; accepted for publication in Proc. Nat. Acad. Sci.
title: An Online Customer Service Survey to Determine Current Levels of Customer Satisfaction at a CrossFit Gym
Creators: name: Lewis, Sarah
Publisher: name: Utah State University
Year: 2013

description: A study was conducted by researchers from Utah State University at Northland Strength and Conditioning/Combat CrossFit to determine the customer satisfaction levels at a CrossFit gym in Liberty, Missouri. A survey was created and sent to current and previous members and responses were analyzed for trends and areas of strengths and weaknesses in the business. Of 194 surveys sent, 67 (35%) were returned. Data was analyzed using the survey administration platform provided by Constant Contact and also by Excel spreadsheet and statistical analyses.
Several areas of improvement were identified, including advertising opportunities with exterior signage, offering more classes or different class times, and enhancing the customer experience to improvement regular attendance rates among members. After analyzing data for age and gender trends using ANOVA, there was found to be a small but statistically significant difference between male and female customer satisfaction, with males being slightly less satisfied with service than females. There was no difference in satisfaction rates among members based on age.
Further considerations for research at this location would include analyzing the customers’ likelihood of referring others to the business and what specific scheduling changes would be most likely to result in increased satisfaction with the gym’s class offerings and business hours.
Numerical black hole initial data with low eccentricity based on post-Newtonian orbital parameters
Creators: name: Walther, Benny
name: Bruegmann, Bernd
name: Mueller, Doreen
Publisher: name: arXiv
Year: 2009
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: Black hole binaries on non-eccentric orbits form an important subclass of gravitational wave sources, but it is a non-trivial issue to construct numerical initial data with minimal initial eccentricity for numerical simulations. We compute post-Newtonian orbital parameters for quasi-spherical orbits using the method of Buonanno, Chen and Damour (2006) and examine the resulting eccentricity in numerical simulations. Four different methods are studied resulting from the choice of Taylor-expanded or effective-one-body Hamiltonians, and from two choices for the energy flux. The eccentricity increases for unequal masses and for spinning black holes, but remains smaller than that obtained from previous post-Newtonian approaches. The effective-one-body Hamiltonian offers advantages for decreasing initial separation as expected, but in the context of this study also performs significantly better than the Taylor-expanded Hamiltonian for binaries with spin.
description: 20 pages, 11 figures, pdflatex; V2 with minor changes according to published version
title: Towed Water Turbine Computational Fluid Dynamics Analysis
Creators: name: Maughan, Robert G.
Publisher: name: Utah State University
Year: 2013

description: Computational fluid dynamics can be used to predict operating conditions of towed water turbines which are used in long distance sailing applications to meet electrical demands. The design consists of a turbine fastened to a shaft which is attached to a generator by a rope. The turbine is pulled in water behind a sailboat and torque is transmitted through the rope to turn the onboard generator and produce power. Torque curves from an alternator, generator, and from computational fluid dynamics were used to determine the operating spin rate and output power of the system. On-water tests were conducted to determine the accuracy of the computation fluid dynamics approach. For the on-water tests the revolutions per minute, voltage, and current were measured in water behind a boat and in a 12 inch diameter pipe. Both scenarios were tested with a flow speed of 3 m/s. The results behind the boat were found using both an alternator and a generator while charging a 12 V and 88 AH battery. The values in the pipe were found while connected to heat dissipating dump load resistors. Scenarios of 3.46, 5.46, and 7.46 ohms of resistance were each analyzed while attached to the alternator and generator. The open-water power results consisted of 70 W for the alternator and 41 W for the generator. The results for the in-pipe turbine ranged from 66 to 245 W. Multiple approaches of efficiency of the turbine are considered as well as the efficiencies of an alternator and generator.
Lower Bound for Compactification Scale from Muon g - 2 in the Gauge-Higgs Unification
Creators: name: Adachi, Yuki
name: Lim, C. S.
name: Maru, Nobuhito
Publisher: name: arXiv
Year: 2009
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We discuss a muon anomalous magnetic moment in a five dimensional SU (3) gauge- Higgs unification compactified on M^4 \times S^1 /Z_2 space-time including Z_2 -odd bulk mass for a fermion. We calculate one-loop corrections to the anomalous magnetic moment of muon and find a lower bound for the compactification scale to be around 5 \sim 6 TeV by comparing nonzero Kaluza-Klein mode contributions with the muon (g - 2) experiment at BNL.
description: 42 pages, 22 ps files, We reanalyzed muon g-2 in the ten dimensional representation
title: Intensification, Storage, and the Use of Alpine Habitats in the Central Great Basin: Prehistoric Subsistence Strategies in the Toquima and Toiyabe Ranges
Creators: name: Hildebrandt, Tod W.
Publisher: name: Utah State University
Year: 2013

description: Alpine villages are extremely rare in the Great Basin. To date, villages located at elevations above 10,000 ft. are only known to occur in the White Mountains and the Toquima Range. Demographic forcing has been used to explain the existence of these villages, but this proposition does not identify the selective pressures that led to the establishment of high-elevation villages in some ranges but not others. Comparison of artifact distributions and environmental structure in the Toquima Range, where a village exists, and the Toiyabe Range, where one does not, is consistent with the hypothesis that alpine villages were subsidized by intensive exploitation of mid-elevation pinyon groves associated with low-cost travel corridors, which facilitated transport of pine nuts to upland village locations. This study also reveals that limber pine may have played a role in alpine village subsistence, and identifies the need for further research on the value of this resource.
title: A Prototype Automated Resolution Service For Public-Health Master Person Index
Creators: name: Jain, Sarvesh
Publisher: name: Utah State University
Year: 2012

description: A Master Person Index (MPI) is a software system that links together the records about individuals from a diverse set of data sources and that allows data consumers to ¬¬retrieve correlated data for a given person. The Utah Department of Health recently contracted with Utah State University to build an MPI that links data from four initial data sources, and with enough extensibility that it will eventually handle dozens. This MPI, called the Utah Public-health Master Person Index or phMPI, was to include a special software component that automatically computed the “best version of truth” about each individual using correlated data from the various sources. This report documents the design, implementation, and testing of a prototype for that component. Because the phMPI’s design uses a service-oriented architecture, this component is a stand-alone software service that could be adapted and integrated into other MPI’s.
title: El signo del remolino. Características de imagen y trampas diagnósticas.
Creators: name: Pire Solaun, Maria
Publisher: name: Sociedad Española de Radiología Médica
Year: 2014
Subjects: subject: Volvulus
subject: CT
subject: Emergency
subject: Abdomen

description: Objetivo docente
Revisión del tema
Conclusiones
Bibliografía
description: Objetivo docente:
Definir las características de imagen en TC “signo del remolino”,
diferenciándolo de otros patrones similares más frecuentes pero con menor impacto en el manejo terapéutico y en el pronóstico del...
title: Valor predictivo positivo de las subcategorías  BI-RADS ® 4  Y  5 en el diagnóstico de cáncer de mama: análisis de 350 lesiones.
Creators: name: Quintana Rodríguez, Isabel
Publisher: name: Sociedad Española de Radiología Médica
Year: 2014
Subjects: subject: Outcomes analysis
subject: Mammography
subject: Breast

description: Objetivos
Material y método
Resultados
Conclusiones
Bibliografía
description: Objetivos:
OBJETIVOS E INTRODUCCION La mamografía es un método de conocida utilidad para la detección precoz del cáncer de mama clínicamente oculto.
Para asesorar en la interpretación de la mamografía,
el Colegio Americano de Radiología (ACR)...
title: Using a White Noise Source To Characterize a Glottal Source Waveform for Implementation in a Speech Synthesis System
Creators: name: Graham, Brandon R.
Publisher: name: Utah State University
Year: 2013

description: A novel speech synthesizer is being developed which needs a source waveform that represents the sound created by the vocal folds before it is shaped by the rest of the vocal cavity. Methods already exist for extracting this waveform, but this report explores a new method. The method involves finding a model for the vocal tract. A system identification technique is applied that uses a white noise audio source emitted into the oral cavity via a tube as the input. The effects of the tube are characterized and accounted for to allow for greater accuracy in the estimation of the true vocal tract properties. The vocal tract model is then used to extract the source waveform from a vocalized speech recording. Common properties of the source waveform will also be characterized and synthesized. These properties include the changes in harmonic content of the source based on vocal effort, and the natural aperiodic punctuations in pitch and amplitude of the source waveform. All of these properties, when properly synthesized, will help to create a more natural-sounding glottal source waveform.
Non-Gaussian states produced by close-to-threshold optical parametric oscillators: role of classical and quantum fluctuations
Creators: name: D'Auria, Virginia
name: de Lisio, Corrado
name: Porzio, Alberto
name: Solimeno, Salvatore
name: Anwar, Javaid
name: Paris, Matteo G. A.
Publisher: name: arXiv
Year: 2009
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Quantum states with non-Gaussian statistics generated by optical parametric oscillators (OPO) with fluctuating parameters are studied by means of the Kurtosis excess of the external field quadratures. The field generated is viewed as the response of a nonlinear device to the fluctuations of laser pump amplitude and frequency, crystal temperature and cavity detuning, in addition to quantum noise sources. The Kurtosis excess has been evaluated perturbatively up to the third order in the strength of the crystal nonlinear coupling factor and the second order in the classical fluctuating parameters. Applied to the device described in Opt. Expr. 13, 948-956 (2005) the model has given values of the Kurtosi excess in good agreement with the measured ones.
description: 10 pages, new figure added
Light Curves Analysis and Period Study of Two Eclipsing Binaries UZ Lyr and BR Cyg
Creators: name: Roobiat, K. Y.
name: Pazhouhesh, R.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: Two eclipsing binary systems UZ Lyr and BR Cyg are the semi-detached types whose secondary component fill its Roche lobe. Although radial velocity and light curves of these systems have already been investigated separately, both radial velocity and light curves of them are analyzed simultaneously for the first time in the present study . Also, the orbital period changes of these systems are studied. Our results show that the mass transfer between components have negligible effects on the orbital period changes of these systems, but two light-time effects are the reasons of the periodic behavior of the O-C curve for UZ Lyr. We could not remark more information about orbital period changes for BR Cyg, but we find a new orbital period for it. By radial velocity and light curves analysis we find a clod spot on the secondary components of BR Cyg. The new geometrical and physical parameters of both systems are obtained and their positions on H-R diagram demonstrated.
description: 16 pages, 10 figures, 4 tables. Accepted in RAA
title: Comparison of VO2 and Body Kinematics for Three Cycling Modes
Creators: name: Miller, Andrew I.
Publisher: name: Utah State University
Year: 2013

description: Cycling research in a laboratory has an advantage of being more tightly controlled compared to field studies; however, consideration must be given to ecological validity for the results to be best applied to its target population and environment. This was clearly demonstrated by Jones and Doust (8) where they reported treadmill running to be metabolically lower (p < 0.05) then outdoor running at the same velocity and incline. Cycling research is often targeted towards high-level cyclists interested in understanding cycling physiology and improving performance. Therefore, research results are most applicable when utilizing methods that best mimic conditions of the target population while still maintaining the control advantages that the laboratory offers
title: “¿Ganglio Impar?: Bloqueo nervioso guiado por TCMC en el tratamiento del dolor perineal y coccígeo”
Creators: name: Pérez Rosillo, Miguel Ángel
Publisher: name: Sociedad Española de Radiología Médica
Year: 2014
Subjects: subject: Musculoskeletal bone
subject: Abdomen
subject: Interventional non-vascular
subject: CT
subject: Technical aspects
subject: Treatment effects
subject: Education

description: Objetivos
Material y método
Resultados
Conclusiones
Bibliografía
description: Objetivos:
Objetivos: Realizar un recuerdo anatómico de la localización y función del ganglio impar. Describir la técnica de bloqueo nervioso guiada por TCMC. Mostrar los resultados obtenidos en nuestra serie de casos. Introducción: El ganglio impar:...
Thermally activated breakdown in a simple polymer model
Creators: name: Fugmann, S.
name: Sokolov, I. M.
Publisher: name: arXiv
Year: 2009
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: We consider the thermally activated fragmentation of a homopolymer chain. In our simple model the dynamics of the intact chain is a Rouse one until a bond breaks and bond breakdown is considered as a first passage problem over a barrier to an absorbing boundary. Using the framework of the Wilemski-Fixman approximation we calculate activation times of individual bonds for free and grafted chains. We show that these times crucially depend on the length of the chain and the location of the bond yielding a minimum at the free chain ends. Theoretical findings are qualitatively confirmed by Brownian dynamics simulations.
Casting Loop Quantum Cosmology in the Spin Foam Paradigm
Creators: name: Ashtekar, Abhay
name: Campiglia, Miguel
name: Henderson, Adam
Publisher: name: arXiv
Year: 2010
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: The goal of spin foam models is to provide a viable path integral formulation of quantum gravity. Because of background independence, their underlying framework has certain novel features that are not shared by path integral formulations of familiar field theories in Minkowski space. As a simple viability test, these features were recently examined through the lens of loop quantum cosmology (LQC). Results of that analysis, reported in a brief communication [1], turned out to provide concrete arguments in support of the spin foam paradigm. We now present detailed proofs of those results. Since the quantum theory of LQC models is well understood, this analysis also serves to shed new light on some long standing issues in the spin foam and group field theory literature. In particular, it suggests an intriguing possibility for addressing the question of why the cosmological constant is positive and small.
description: 37 pages, no figures. 3 references and half a dozen clarifications added. All changes are minor.
A Connection between Twistors and Superstring Sigma Models on Coset Superspaces
Creators: name: Wolf, Martin
Publisher: name: arXiv
Year: 2009
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We consider superstring sigma models that are based on coset superspaces G/H in which H arises as the fixed point set of an order-4 automorphism of G. We show by means of twistor theory that the corresponding first-order system, consisting of the Maurer-Cartan equations and the equations of motion, arises from a dimensional reduction of some generalised self-dual Yang-Mills equations in eight dimensions. Such a relationship might help shed light on the explicit construction of solutions to the superstring equations including their hidden symmetry structures and thus on the properties of their gauge theory duals.
description: v3: 16 pages, typos fixed and minor clarifications added
title: Criteria for Transition for Self-Contained Classrooms
Creators: name: Marden, Christopher S.
Publisher: name: Utah State University
Year: 2013

description: This project was an effort to ascertain what skills regular and/or resource teachers require of self-contained students with learning disabilities in order to transition successfully in their classrooms. A twenty-one-question survey was given to regular and resource teachers in four junior high schools. This survey questioned teachers with regards to what the minimal academic, behavioral and procedural criteria should be mastered before students transition into regular classrooms. Once this information is received, self-contained teachers may analyze their curriculum, behavioral and classroom procedures to better mirror the requirements and the realities of the regular and/or resource classrooms.
title: Of Form and Fire
Creators: name: Reilly, Louis R.
Publisher: name: Utah State University
Year: 2013

description: I will design and create a body of functional ceramic vessels for soda firing. These ceramic vessels will have clean silhouettes, undulating rims, stretched proportions, and smooth surfaces. I intend for these characteristics to best display the wide-ranging texture, sheen, and hue possible with the soda firing process.
The Uned systems at Senseval-2
Creators: name: Fernandez-Amoros, David
name: Gonzalo, Julio
name: Verdejo, Felisa
Publisher: name: arXiv
Year: 2009
Subjects: subject: Computation and Language (cs.CL)
subject: Artificial Intelligence (cs.AI)
subject: FOS: Computer and information sciences

description: We have participated in the SENSEVAL-2 English tasks (all words and lexical sample) with an unsupervised system based on mutual information measured over a large corpus (277 million words) and some additional heuristics. A supervised extension of the system was also presented to the lexical sample task. Our system scored first among unsupervised systems in both tasks: 56.9% recall in all words, 40.2% in lexical sample. This is slightly worse than the first sense heuristic for all words and 3.6% better for the lexical sample, a strong indication that unsupervised Word Sense Disambiguation remains being a strong challenge.
description: latex2e, 5 pages, appeared in SENSEVAL-2, held with ACL-02