cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Spatiotemporal chaos and the dynamics of coupled Langmuir and ion-acoustic waves in plasmas
Creators: name: Banerjee, S.
name: Misra, A. P.
name: Shukla, P. K.
name: Rondoni, L.
Publisher: name: arXiv
Year: 2010
Subjects: subject: Plasma Physics (physics.plasm-ph)
subject: FOS: Physical sciences

description: A simulation study is performed to investigate the dynamics of coupled Langmuir waves (LWs) and ion-acoustic waves (IAWs) in an unmagnetized plasma. The effects of dispersion due to charge separation and the density nonlinearity associated with the IAWs, are considered to modify the properties of Langmuir solitons, as well as to model the dynamics of relatively large amplitude wave envelopes. It is found that the Langmuir wave electric field, indeed, increases by the effect of ion-wave nonlinearity (IWN). Use of a low-dimensional model, based on three Fourier modes shows that a transition to temporal chaos is possible, when the length scale of the linearly excited modes is larger than that of the most unstable ones. The chaotic behaviors of the unstable modes are identified by the analysis of Lyapunov exponent spectra. The space-time evolution of the coupled LWs and IAWs shows that the IWN can cause the excitation of many unstable harmonic modes, and can lead to strong IAW emission. This occurs when the initial wave field is relatively large or the length scale of IAWs is larger than the soliton characteristic size. Numerical simulation also reveals that many solitary patterns can be excited and generated through the modulational instability (MI) of unstable harmonic modes. As time goes on, these solitons are seen to appear in the spatially partial coherence (SPC) state due to the free ion-acoustic radiation as well as in the state of spatiotemporal chaos (STC) due to collision and fusion in the stochastic motion. The latter results the redistribution of initial wave energy into a few modes with small length scales, which may lead to the onset of Langmuir turbulence in laboratory as well as space plasmas.
description: 10 Pages, 14 Figures; to appear in Physical Review E
Spin-1/2 fermions with attractive interaction in an optical lattice
Creators: name: Fialko, O.
name: Gammal, A.
name: Ziegler, K.
Publisher: name: arXiv
Year: 2009
Subjects: subject: Quantum Gases (cond-mat.quant-gas)
subject: FOS: Physical sciences

description: We study attractive fermions in an optical lattice superimposed by a trapping potential, such that fermions may form bosonic molecules. We map the model onto nonlinear field equations depending on the Nambu-Gor'kov propagator. The resulting field equations where solved numerically by a relaxation technique that allowed us to calculate the inhomogeneous densities of fermions and condensed molecules at zero temperature. When the interactions between fermions are strong there is a competition between unbound fermions and bound molecules leading to an unexpected reduction of the non-homogeneous density of fermions at the center of the trap.
description: 10 pages, 7 figures; revised
title: How Does Untimely Death of an Executive Affect Stock Prices and Company Performance?
Creators: name: Zhang, Yu
Publisher: name: Utah State University
Year: 2015

description: The main purpose of this project is to investigate if the sudden death of an executive will affect the company’s stock price and/or performance, and to examine any other impacts of an executive’s untimely death. Are executives the most important person in a company? If so, how much is an executive worth in comparison to the company’s overall value? Is a CEO’s pay actually worth what the company is getting in return? Many researchers believe that the CEO and executives are the soul of a company, however, there is limited evidence to prove that hypothesis (Fama and Jesnsen, 1983). There is plenty of research looking into how CEO and executives’ value correlate with the company’s overall value; however, there is very limited research on how much the other board members contribute to a company to be used for comparison as well.
Universal transcendentality limit of BFKL eigenvalue
Creators: name: Joubat, Mohammad
name: Prygarin, Alex
Publisher: name: arXiv
Year: 2021
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We consider a special limit of the BFKL eigenvalue at $ν\to 0$ and odd values of the conformal spin $n$. We show that in this limit the NLO BFKL eigenvalue can be expressed in terms of a limited set of transcendental constants with rational coefficients. We show that the leading transcendentality term in this limit is universal and does not depend on a specific value of $n$.
description: 16 pages
title: Teaching Chinese As a Foreign Language: A Foreigner's Perspective
Creators: name: Poole, Frederick J.
Publisher: name: Utah State University
Year: 2015

description: This portfolio reflects the author’s beliefs on effective methods for teaching Chinese as a second language. The first section includes the author’s teaching philosophy, which focuses on communicative language teaching, developing literacy, integrating culture into instruction, and employing technology to facilitate learning. Following the teaching philosophy are three artifacts that were written throughout the Master of Second Language Teaching (MSLT) program. First, the language artifact presents a study conducted by the author regarding three different approaches to teaching beginners of Chinese. Second, the literacy artifact is a proposal for a study that examines the effect of reading Chinese via an e-dictionary on incidental vocabulary learning and retention. Third, the cultural artifact is a literature review and lesson plan regarding Chinese compliment responses. Finally, the annotated bibliography provides a record of the authors’ learning in the MSLT program.
title: A Computer Approach to Performing MPPA Testing
Creators: name: Shaw, James W.
Publisher: name: Utah State University
Year: 1976

description: In the highly competitive cattle market of today a scientific method, by which a rancher can base a judgement, moderated by experience as to which animals are to be kept, as proven by superior performance, can be a valuable asset.
This record performance testing system was designed to demonstrate the value of adequately kept records. Its purpose is to help ranchers develop records of herd performance, inventory, and improve management practices by more informed decisions. The system, through its representative, provides a means by which ranchers can obtain information on new ideas in animal production, health, sanitation, nutrition, management practices, and new record testing methods showing the results of their use and meaning.
The procedure used is based on the recommendations of the Beef Improvement Federation. The three test result summaries printed are (1) Weaning; (2) Yearling; and (3) Dam. An inventory of the herd is generated showing, in addition to performance, those not producing a calf, and those calves which did not have enough data for processing.
The test results will list different amounts of valuable information. According to each individual test, the results are:
(1) Weaning: The calf's weight both actual and adjusted, (two hundred five (205) days of age), wean weight ratio, and weight per day of age at weaning. Also provided is a ranking of best to worst, by actual and adjusted weight.
(2) Yearling: Lists weight, actual and adjusted (one hundred sixty days between wean and year dates), weight gained between wean and year tests, average daily gain, and weight per day of age at yearling. Ranking of best to worst is of two kinds by actual yearling weight and by adjusted yearling weight.
(3) Dam: Number of calves in record, total mean weight accumulated, and previous Most Probably Producing Ability (MPPA) score. There is a ranking of best dam to worst dam, based on current MPPA scores.
All the test results included herd averages for most valuable data (i.e.; weight, MPAA score etc.).
This is but one type of a computer method of handling a cattle record system. The system was programmed and placed in operation, limited only by the physical size of the computer at the time of its programming. The system is in operation on the Burroughs 6700 computer system at the Utah State University campus.
this full system was accomplished by first modifying the calf performance testing and then programming the MPPA testing routines.
Turbo Packet Combining for Broadband Space-Time BICM Hybrid-ARQ Systems with Co-Channel Interference
Creators: name: Ait-Idir, Tarik
name: Chafnaji, Houda
name: Saoudi, Samir
Publisher: name: arXiv
Year: 2009
Subjects: subject: Information Theory (cs.IT)
subject: FOS: Computer and information sciences

description: In this paper, efficient turbo packet combining for single carrier (SC) broadband multiple-input--multiple-output (MIMO) hybrid--automatic repeat request (ARQ) transmission with unknown co-channel interference (CCI) is studied. We propose a new frequency domain soft minimum mean square error (MMSE)-based signal level combining technique where received signals and channel frequency responses (CFR)s corresponding to all retransmissions are used to decode the data packet. We provide a recursive implementation algorithm for the introduced scheme, and show that both its computational complexity and memory requirements are quite insensitive to the ARQ delay, i.e., maximum number of ARQ rounds. Furthermore, we analyze the asymptotic performance, and show that under a sum-rank condition on the CCI MIMO ARQ channel, the proposed packet combining scheme is not interference-limited. Simulation results are provided to demonstrate the gains offered by the proposed technique.
description: 12 pages, 7 figures, and 2 tables
title: The Multifaceted Interaction of Pain Perception in Collegiate Athletes
Creators: name: Bartiss, Kristen Leigh
Publisher: name: Utah State University
Year: 2015

description: Deepening the present understanding of the multidimensional nature of athlete perceptions of pain requires attention to three specific gaps. First, the field currently lacks fundamental knowledge regarding the relationship between an individual’s athletic identity and the role of the brain in deciphering and responding to painful stimuli. Because athletes view injury as a potential loss of identity and thus a significant part of themselves (International Olympic Committee, n.d.), the severity they ascribe to pain is both conceptually and practically relevant. Second, the field has yet to fully explore the specific areas of the brain associated with subsequent functional connectivity as it relates to pain perception. Due to the increased activation of the brain’s neuromatrix during painful experiences (Peltz, Seifert, DeCol, Dorfler, Schwab, & et al., 2011), it is critical to highlight the specific areas and connections within the brain that are activated during painful events. Such activation patterns are referred to in the literature as functional connectivity. Third, the field has yet to document the potential impact of an individual’s past injury experiences on their perceptions of pain, thereby influencing future injury experiences. Because injury is commonplace in elite athletics (Sharma et al., 2011), it is important to examine how athletes subjectively perceive and react to the pain that accompanies an objective physical injury event.
title: The Idiosyncratic Volatility Puzzle: A Behavioral Explanation
Creators: name: Cannon, Brad
Publisher: name: Utah State University
Year: 2015

description: The trade-off between risk and return is a fundamental principle in finance. In any finance class, one will likely hear the phrase, “the greater the risk, the greater the return.” The Capital Asset Pricing Model (CAPM), one of the most basic and well-known finance models, estimates the expected return of an asset assuming a positive relation between expected return and a single risk factor. Empirically, risk control variables such as the CAPM beta along with other risk factors associated with market cap, book-to-market ratio, and illiquidity are used when pricing assets. Finance is abundant in theories all supporting positive risk-return relationships. In spite of the general, intuitive risk-return relationship, several studies have empirically observed risk factors, including idiosyncratic volatility, to be negatively related to the future return on a stock (Ang, Hodrick, Xing, and Zhang (2006)). This counterintuitive relationship invokes the question why a risk variable such as idiosyncratic volatility would have a negative effect on expected returns when theory suggests that risk should have a positive relationship with expected return.
title: Understanding Second-Person Point of View in Fiction
Creators: name: Hawke, Anastasia L.
Publisher: name: Utah State University
Year: 2015

description: This thesis consists of a critical introduction followed by a short story and reflection. The critical introduction introduces and analyzes second-person point of view. The first section establishes a working definition for second-person narrative and maps out its unique relationship between narrator, protagonist, and reader. The second section explores the way second-person point of view is taught. The third and last section of the critical introduction focuses on the effects second-person point of view has on fiction narratives.
The short fiction “Pregnancy and Other Dysfunctions” following the critical introduction demonstrates a narrative effectively using second-person point of view. It follows the experience of a disillusioned thirty-year-old woman in her attempt to control her situation and make herself a family. The second-person point of view illustrates how control is an illusion, and only once she loses control and gives up her expectations does she find happiness. Then I reflect on the successes and challenges of writing a story in the second-person point of view.
Stability of a Fully Magnetized Ferromagnetic state in Repulsively Interacting Ultracold Fermi Gases
Creators: name: Cui, Xiaoling
name: Zhai, Hui
Publisher: name: arXiv
Year: 2010
Subjects: subject: Quantum Gases (cond-mat.quant-gas)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: We construct a variational wave function to study whether a fully polarized Fermi sea is energetically stable against a single spin flip. Our variational wave function contains sufficient short-range correlation at least to the same level as Gutzwiller's projected wave function. For Hubbard lattice model and continuum model with pure repulsive interaction, we show a fully polarized Fermi sea is generally unstable even when the repulsive strength becomes infinite. While for a resonance model, ferromagnetic state is possible if the s-wave scattering length is positive and sufficiently large, and the system is prepared in scattering state orthogonal to molecular bound state. However, we can not rule out the possibility that more exotic correlation can destabilize the ferromagnetic state.
description: 4 pages, 3 figures
title: Teaching Arabic and English to Speakers of Other Languages: the Application of Theory-Grounded Methods
Creators: name: Hussein, Mohammed
Publisher: name: Utah State University
Year: 2014

description: This portfolio is a collection of artifacts that represent the author’s beliefs and ideas about teaching a second language. The first section is the author’s teaching philosophy statement, in which he explains how to apply the three modes of communication in the second language classroom. The second section is a literacy artifact that addresses how to use literature to heighten learners’ level of second language literacy. The following two artifacts are on two basic applications of sociocultural theory: concept-based instruction and dynamic assessment. The cultural artifact addresses the pedagogical implications of code-switching in the Arabic language classroom. The third artifact is a reflection on a lesson plan in which the author explains how he benefits from dynamic assessment in the classroom. Finally, the portfolio ends with four annotated bibliographies relevant to the topics discussed in the portfolio. Those topics are teaching second language, diglossia, dynamic assessment, and technology in the classroom.
IT Complexity Revolution: Intelligent Tools for the Globalised World Development
Creators: name: Kirilyuk, Andrei
name: Ulieru, Mihaela
Publisher: name: arXiv
Year: 2009
Subjects: subject: General Physics (physics.gen-ph)
subject: FOS: Physical sciences

description: Globalised-civilisation interaction intensity grows exponentially, involving all dimensions and regions of planetary environment. The resulting dynamics of critically high, exploding complexity urgently needs consistent understanding and efficient management. The new, provably universal concept of unreduced dynamic complexity of real interaction processes described here provides the former and can be used as a basis for the latter, in the form of "complexity revolution" in information systems controlling such "critically globalised" civilisation dynamics. We outline the relevant dynamic complexity properties and the ensuing principles of anticipated complexity transition in information and communication systems. We then emphasize key applications of unreduced complexity concept and complexity-driven IT to various aspects of post-industrial civilisation dynamics, including intelligent communication, context-aware information and control systems, reliable genetics, integral medicine, emergent engineering, efficient risk management at the new level of socio-economic development and resulting realistic sustainability.
description: 13 pages, 10 eqs, 18 refs; presented at the First International ICST Conference "I.T. Revolutions 2008" (17-19 December 2008, Venice, Italy), http://www.itrevolutions.org/2008/
Hawking Radiation due to Photon and Gravitino Tunneling
Creators: name: Majhi, Bibhas Ranjan
name: Samanta, Saurav
Publisher: name: arXiv
Year: 2009
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: Applying the Hamilton--Jacobi method we investigate the tunneling of photon across the event horizon of a static spherically symmetric black hole. The necessity of the gauge condition on the photon field, to derive the semiclassical Hawking temperature, is explicitly shown. Also, the tunneling of photon and gravitino beyond this semiclassical approximation are presented separately. Quantum corrections of the action for both cases are found to be proportional to the semiclassical contribution. Modifications to the Hawking temperature and Bekenstein-Hawking area law are thereby obtained. Using this corrected temperature and Hawking's periodicity argument, the modified metric for the Schwarzschild black hole is given. This corrected version of the metric, upto $\hbar$ order is equivalent to the metric obtained by including one loop back reaction effect. Finally, the coefficient of the leading order correction of entropy is shown to be related to the trace anomaly.
description: LaTex, 19 pages, no figures, extended version, new references added, to appear in Annals of Phys
Role of anomalous chromomagnetic interaction in Pomeron and Odderon structures and in gluon distribution
Creators: name: Kochelev, Nikolai
Publisher: name: arXiv
Year: 2009
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We calculate the contribution arising from nonperturbative quark-gluon chromomagnetic interaction to the high energy total quark-quark cross section and to gluon distributions in nucleon. The estimation obtained within the instanton model of QCD vacuum leads to the conclusion that this type of interaction gives the dominating contribution to the Pomeron coupling with the light quarks and to gluon distribution in light hadrons at small virtualities of quarks and gluons. We argue that the Odderon, which is the $P=C=-1$ partner of Pomeron, is governed by the spin-flip component related to nonperturbative three-gluon exchange induced by anomalous quark-gluon chromomagnetic interaction.
description: 12 pages, 9 figures, references and one figure added, extended discussion
Diffusion Monte Carlo study of a valley degenerate electron gas and application to quantum dots
Creators: name: Conduit, G. J.
name: Haynes, P. D.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: A many-flavor electron gas (MFEG) in a semiconductor with a valley degeneracy ranging between 6 and 24 was analyzed using diffusion Monte Carlo (DMC) calculations. The DMC results compare well with an analytic expression derived by one of us [Phys. Rev. B 78, 035111 (2008)] for the total energy to within 1% over an order of magnitude range of density, which increases with valley degeneracy. For Bi2Te3 (six-fold valley degeneracy) the applicable charge carrier densities are between 7*10^19cm^{-3} and 2*10^20cm^{-3}. DMC calculations distinguished between an exact and a useful approximate expression for the 24-fold degenerate MFEG polarizability for wave numbers 2p_F
description: 15 pages, 7 figures, PRB (to appear)
The dynamic critical exponent $z$ for 2d and 3d Ising models from five-loop $ε$ expansion
Creators: name: Adzhemyan, L. Ts.
name: Evdokimov, D. A.
name: Hnatič, M.
name: Ivanova, E. V.
name: Kompaniets, M. V.
name: Kudlis, A.
name: Zakharov, D. V.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: We calculate the dynamic critical exponent $z$ for 2d and 3d Ising universality classes by means of minimally subtracted five-loop $\varepsilon$ expansion obtained for the one-component model A. This breakthrough turns out to be possible through the successful adaptation of the Sector Decomposition technique to the problems of critical dynamics. The obtained fifth perturbative order accompanied by the use of advanced resummation techniques for asymptotic series allows us to find highly accurate numerical estimates of $z$: for two- and three-dimensional cases we obtain $\boldsymbol{2.14(2)}$ and $\boldsymbol{2.0235(8)}$ respectively. The numbers found are in good agreement with recent results obtained using different approaches.
title: Remote Heart Rate Estimation Using Consumer-Grade Cameras
Creators: name: Ruben, Nathan E.
Publisher: name: Utah State University
Year: 2015

description: There are many ways in which the remote non-contact detection of the human heart rate might be useful. This is especially true if it can be done using inexpensive equipment such as consumer-grade cameras. Many studies and experiments have been performed in recent years to help reliably determine the heart rate from video footage of a person. The methods have taken an analysis approach which involves temporal Itering and frequency spectrum examination. This study attempts to answer questions about the noise sources which inhibit these methods from estimating the heart rate. Other statistical processes are examined for their use in reducing the noise in the system. Methods for locating the skin of a moving individual are explored and used with the purpose for acquiring the heart rate. Alternative methods borrowed from other fields are also introduced to find if they have merit in remote heart rate detection.
title: Dual Language Learners Home Literacy Environment: A Training Workshop for Head Start Professionals
Creators: name: Shea, Kerry A.
Publisher: name: Utah State University
Year: 2014

description: Given that demographic statistics in early childhood settings show an increase in the number of children who are Dual Language Learners (DLLs), it is necessary to provide early childhood education professionals with information and skill-building opportunities regarding how to best serve DLL children. Head Start, a federally funded preschool for children and families living in poverty, provides services for an increasing number of DLLs. Head Start professionals are in need of effective professional development about DLLs and their families. This study examined the effects of a training on Head Start professionals' knowledge and skills for working with DLL families. Participants included Head Start preschool teachers and home visitors who were serving children from birth to 5 years of age. The training consisted of lecture and learning activities. Participants took pre- and post-tests based on content covered during training and a participant belief survey. Results showed an increase in participant knowledge and a change in belief rating. The results provide a framework for developing and delivering similar training content and materials in preschool settings.
Quantum nature of cyclotron harmonics in thermal spectra of neutron stars
Creators: name: Suleimanov, V. F.
name: Pavlov, G. G.
name: Werner, K.
Publisher: name: arXiv
Year: 2010
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: Some isolated neutron stars show harmonically spaced absorption features in their thermal soft X-ray spectra. The interpretation of the features as a cyclotron line and its harmonics has been suggested, but the usual explanation of the harmonics as caused by relativistic effects fails because the relativistic corrections are extremely small in this case. We suggest that the features correspond to the peaks in the energy dependence of the free-free opacity in a quantizing magnetic field, known as quantum oscillations. The peaks arise when the transitions to new Landau levels become allowed with increasing the photon energy; they are strongly enhanced by the square-root singularities in the phase-space density of quantum states in the case when the free (non-quantized) motion is effectively one-dimensional. To explore observable properties of these quantum oscillations, we calculate models of hydrogen neutron star atmospheres with B \sim 10^{10} - 10^{11} G (i.e., electron cyclotron energy E_{c,e} = 0.1 - 1 keV) and T_{eff} = 1 - 3 MK. Such conditions are thought to be typical for the so-called central compact objects in supernova remnants, such as 1E 1207.4-5209 in PKS 1209-51/52. We show that observable features at the electron cyclotron harmonics form at moderately large values of the quantization parameter, b_{eff} = E_{c,e}/kT_{eff} = 0.5 - 20. The equivalent widths of the features can reach 100 - 200 eV; they grow with increasing b_{eff} and are lower for higher harmonics.
description: 6 pages; shortened, references updated; published in ApJ
On the rise times in FU Orionis events
Creators: name: Borchert, Elisabeth M. A.
name: Price, Daniel J.
name: Pinte, Christophe
name: Cuello, Nicolás
Publisher: name: arXiv
Year: 2021
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: We examine whether stellar flyby simulations can initiate FU Orionis outbursts using 3D hydrodynamics simulations coupled to live Monte Carlo radiative transfer. We find that a flyby where the secondary penetrates the circumprimary disc triggers a 1-2 year rise in the mass accretion rate to $10^{-4}~{\rm M_{\odot}~ yr^{-1}}$ that remains high ($\gtrsim 10^{-5}~{\rm M_{\odot}~yr^{-1}}$) for more than a hundred years, similar to the outburst observed in FU Ori. Importantly, we find that the less massive star becomes the dominant accretor, as observed.
description: 5 pages, 4 figures, accepted for publication in MNRAS, movies available at https://emborchert.github.io/videos, press release available at https://www.monash.edu/science/news/current/astronomers-find-clue-to-solar-system-formation-through-well-known-star
title: Movement Variability During Isometric Force Tracking and Quiet Stance
Creators: name: Phipps, Zachary
Publisher: name: Utah State University
Year: 2015

description: Variability in human motor performance is an area of study that has many unanswered questions. Nearly every system of the human body has variability while it performs its functions. Simply looking at heart rate and respiratory rate shows the variable function of two of the main systems of the human body (circulatory and respiratory systems).
title: Utilidad de la RM en el estadiaje, planificación quirúrgica y seguimiento del Ca de cervix
Creators: name: Lorenzo Quesada, Verónica
Publisher: name: Sociedad Española de Radiología Médica
Year: 2014
Subjects: subject: Abdomen
subject: Genital / Reproductive system female
subject: Oncology
subject: MR

description: Objetivo docente
Revisión del tema
Conclusiones
Bibliografía
description: Objetivo docente:
-Describir las principales indicaciones para la realización de RM pélvica en casos de cáncer de cérvix,
y el protocolo más adecuado para su estudio. -Revisar los hallazgos más importantes en el estadiaje del cáncer de cérvix y la valoración...
title: An Extended Look at the Seasonality of Stock Returns
Creators: name: Bagshaw, Justin Michael
Publisher: name: Utah State University
Year: 2015

description: I examine seasonal effects relating to stock index returns including the weekend effect, December effect, and the turn-of-the-month effect with daily data from the Dox Jones Industrial Average and the S&P 500. I find that the publication of a paper in 1989 by Josef Lakonishok and Seymour Smidt has substantially reduced the amount of significantly abnormal returns in the years following. In some cases, the effects have also slightly reversed.
title: Revisión ilustrada de la patología tumoral y pseudotumoral de la membrana sinovial: diagnóstico diferencial mediante RM.
Creators: name: López-Vidaur, Ignacio
Publisher: name: Sociedad Española de Radiología Médica
Year: 2014
Subjects: subject: Hyperplasia / Hypertrophy
subject: eLearning
subject: MR
subject: Musculoskeletal system
subject: Anatomy

description: Objetivo docente
Revisión del tema
Conclusiones
Bibliografía
description: Objetivo docente:
Recordar las claves anatómicas para el estudio e interpretación de la patologia sinovial. Mostrar mediante RM un catálogo ilustrado de las distintas tumoraciones y pseudotumoraciones que puedan afectar a la membrana...
title: Corporate Leverage and Taxes around the World
Creators: name: Loney, Saralyn
Publisher: name: Utah State University
Year: 2015

description: This paper analyzes the relationship between global corporate tax rates and leverage ratios. Theory suggests that firms facing a higher tax rate will have more debt, in order to maximize the effect of the tax savings provided by interest payments. This paper analyzes corporations around the world, including companies based in the United States. I show through this data that tax rates and leverage ratios do, in fact, have a positively correlated relationship. The high-leverage, high-tax firms should also have lower interest coverage ratios, due to the fact that they will pay more in interest because they hold more debt. These results indicate that the use of leverage as a tax benefit is upheld by firms in general.
title: Embedding Language in Snack for Children with Disabilities
Creators: name: Waldron, Alicen Irene
Publisher: name: Utah State University
Year: 2015

description: The number of children that are identified as having a language delay is increasing. According to Rescorla (p. 4 (1984)), “Language delay is the most common developmental problem found in preschool children.” Children with a language delay often struggle with reading and/or develop other types of learning disabilities (Aram & Nation, 1980). It is imperative that children with a language delay are identified early and that interventions are both effective and functional (Dunst, Raab, & Trivette, 2012). The preschool years are a critical period for language development. The impact of language delays can be lessened with interventions and support. Children in a preschool classroom with access to language throughout the day realize increased language development, this acts to close the gap between typical development and language delays (Ramey & Ramey, 2004). Daily routines, including snack, are functional and effective ways of maximizing preschool students’ exposure to embedded language. This is especially true in special education classrooms where children can range from minor to severe language delays. Embedding language learning opportunities may be an effective way to teach many children at differing levels at the same time. Embedded language enables children to develop generalized language skills throughout the preschool day in different settings and this may lead to continued development and maintenance of these skills throughout life (Rakap & Parlak-Rakap, 2011). There is currently a need for functional and effective instructional systems that are implemented into a child’s natural learning environments (Hemmeter, 2000; Odom, 2000; Sandall et al., 2005; VanDerHeyden et al., 2005).
Preheating and the non-gaussianity of the curvature perturbation
Creators: name: Kohri, Kazunori
name: Lyth, David H.
name: Valenzuela-Toledo, Cesar A.
Publisher: name: arXiv
Year: 2009
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: The perturbation of a light field might affect preheating and hence generate a contribution to the spectrum and non-gaussianity of the curvature perturbation ζ. The field might appear directly in the preheating model (curvaton-type preheating) or indirectly through its effect on a mass or coupling (modulated preheating). We give general expressions for ζbased on the δN formula, and apply them to the cases of quadratic and quartic chaotic inflation. For the quadratic case, curvaton-type preheating is ineffective in contributing to ζ, but modulated preheating can be effective. For quartic inflation, curvaton-type preheating may be effective but the usual δN formalism has to be modified. We see under what circumstances the recent numerical simulation of Bond et al. [0903.3407] may be enough to provide a rough estimate for this case. This paper is dedicated to the memory of Lev Kofman who died on 12th November 2009
description: The discussion around Eqs. (100) and (101) corrected and clarified (v4), Added new insights into (i) the status of the box size upon which loop contributions depend and (ii) the relevance for massless preheating of the numerical simulation of Bond et al. (v3) This paper is dedicated to the memory of Lev Kofman who died on 12th November 2009
Supplementary material from The evolution of body size in termites
Creators: name: Mizumoto, Nobuaki
name: Bourguignon, Thomas
Publisher: name: The Royal Society
Year: 2021
Subjects: subject: Evolutionary Biology
subject: FOS: Biological sciences

description: SI Text, Figure S1-S4, Table S1-S2, and titles and captions of supplementary Data S1-S6.
title: ECOGRAFÍA DOPPLER PENEANA EN EL ESTUDIO DE LA DISFUNCIÓN ERECTIL. Lo que el radiólogo debe saber.
Creators: name: Rodríguez Arango, Juliana
Publisher: name: Sociedad Española de Radiología Médica
Year: 2014
Subjects: subject: Diagnostic procedure
subject: Ultrasound-Spectral Doppler
subject: Ultrasound-Colour Doppler
subject: Ultrasound
subject: Genital / Reproductive system male

description: Objetivo docente
Revisión del tema
Conclusiones
Bibliografía
description: Objetivo docente:
Describir e ilustrar los aspectos fundamentales de la ecografía doppler peneana en el estudio de la disfunción eréctil como la técnica,
anatomía ecográfica y principales indicaciones. Explicar la fisiopatología de la erección incluyendo los...
On linear combinations of two idempotent matrices over an arbitrary field
Creators: name: Pazzis, Clément de Seguins
Publisher: name: arXiv
Year: 2009
Subjects: subject: Rings and Algebras (math.RA)
subject: FOS: Mathematics
subject: 15A24; 15A23

description: Given an arbitrary field K and non-zero scalars a and b, we give necessary and sufficient conditions for a matrix A in M_n(K) to be a linear combination of two idempotents with coefficients a and b. This extends results previously obtained by Hartwig and Putcha in two ways: the field K considered here is arbitrary (possibly of characteristic 2), and the case a is different from b and -b is taken into account.
description: 18 pages (minor corrections)
VLA Observations of the AE Aqr-type Cataclysmic Variable LAMOST J024048.51+195226.9
Creators: name: Barrett, Paul E.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: AE Aqr was until recently the only known magnetic cataclysmic variable (MCV) containing a rapidly spinning (33.08 s) white dwarf (WD). Its radio emission is believed to be a superposition of synchrotron emitting plasmoids, because it has a positive spectral index spanning three orders of magnitude (~2-2000 GHz) and is unpolarized. Both characteristics are unusual for MCVs. Recently, Thorstensen has suggested that the cataclysmic variable LAMOST J024048.51+195226.9 (henceforth, J0240+19) is a twin of AE Aqr based on its optical spectra. Optical photometry shows the star to be a high-inclination, eclipsing binary with a spin period of 24.93 s, making it the fastest spinning WD. This paper presents three hours of Very Large Array radio observations of J0240+19. These observations show that the persistent radio emission from J0240+19 is dissimilar to that of AE Aqr in that it shows high circular polarization and a negative spectral index. The emission is most similar to the nova-like CV V603 Aql. We argue that the radio emission is caused by a superposition of plasmoids emitting plasma radiation or electron cyclotron maser emission from the lower corona of the donor star and not from the magnetosphere near the WD, because the latter site is expected to be modulated at the orbital period of the binary and to show eclipses of which there is no evidence. The radio source J0240+19, although weak (<1 mJy), is a persistent source in a high-inclination eclipsing binary, making it a good laboratory for studying radio emission from CVs.
description: 8 pages, 1 table, 3 figures, minor corrections
Relating U(N)xU(N) to SU(N)xSU(N) Chern-Simons Membrane theories
Creators: name: Lambert, Neil
name: Papageorgakis, Constantinos
Publisher: name: arXiv
Year: 2010
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: By integrating out the U(1)_B gauge field, we show that the U(n)xU(n) ABJM theory at level k is equivalent to a Z_k identification of the (SU(n)xSU(n))/Z_n Chern-Simons theory, but only when n and k are coprime. As a consequence, the k=1 ABJM model for two M2-branes in R^8 can be identified with the N=8 (SU(2)xSU(2))/Z_2 theory. We also conjecture that the U(2)xU(2) ABJM model at k=2 is equivalent to the N=8 SU(2)xSU(2)-theory.
description: 16 pages, Latex; v2: references added; v3: Clarifications added
title: Pacientes politraumatizados potencialmente graves, ¿ realizamos sobrevaloración?
Creators: name: López Garro, Nuria
Publisher: name: Sociedad Española de Radiología Médica
Year: 2014
Subjects: subject: Abdomen
subject: Thorax
subject: Bones

description: Objetivos
Material y método
Resultados
Conclusiones
Bibliografía
description: Objetivos:
Los pacientes politraumatizados potencialmente graves (TPG) son pacientes sometidos a un traumatismo de alta energía,
sin lesiones clínicamente evidentes en la evaluación inicial. Existe la percepción generalizada de que estamos realizando un...
Mass measurements of $^{60-63}$Ga reduce x-ray burst model uncertainties and extend the evaluated $T=1$ isobaric multiplet mass equation
Creators: name: Paul, S. F.
name: Bergmann, J.
name: Cardona, J. D.
name: Dietrich, K. A.
name: Dunling, E.
name: Hockenbery, Z.
name: Hornung, C.
name: Izzo, C.
name: Jacobs, A.
name: Javaji, A.
name: Kootte, B.
name: Lan, Y.
name: Leistenschneider, E.
name: Lykiardopoulou, E. M.
name: Mukul, I.
name: Murböck, T.
name: Porter, W. S.
name: Silwal, R.
name: Smith, M. B.
name: Ringuette, J.
name: Brunner, T.
name: Dickel, T.
name: Dillmann, I.
name: Gwinner, G.
name: MacCormick, M.
name: Reiter, M. P.
name: Schatz, H.
name: Smirnova, N. A.
name: Dilling, J.
name: Kwiatkowski, A. A.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Nuclear Experiment (nucl-ex)
subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: We report precision mass measurements of neutron-deficient gallium isotopes approaching the proton drip line. The measurements of $^{60-63}$Ga performed with the TITAN multiple-reflection time-of-flight mass spectrometer provide a more than threefold improvement over the current literature mass uncertainty of $^{61}$Ga and mark the first direct mass measurement of $^{60}$Ga. The improved precision of the $^{61}$Ga mass has important implications for the astrophysical rp process, as it constrains essential reaction Q-values near the $^{60}$Zn waiting point. Based on calculations with a one-zone model, we demonstrate the impact of the improved mass data on prediction uncertainties of X-ray burst models. The first-time measurement of the $^{60}$Ga ground-state mass establishes the proton-bound nature of this nuclide; thus, constraining the location of the proton drip line along this isotopic chain. Including the measured mass of $^{60}$Ga further enables us to extend the evaluated $T=1$ isobaric multiplet mass equation up to $A=60$.
description: 16 pages, 6 figures
title: Quistes cerebrales. Revisión sistemática y planteamiento diagnóstico.
Creators: name: Alandete Germán, Salvador
Publisher: name: Sociedad Española de Radiología Médica
Year: 2014
Subjects: subject: Cysts
subject: Dilatation
subject: Diagnostic procedure
subject: Education
subject: CT
subject: MR
subject: Neuroradiology brain
subject: Foetal imaging
subject: Head and neck

description: Objetivo docente
Revisión del tema
Conclusiones
Bibliografía
description: Objetivo docente:
Conocer e identificar las distintas lesiones quísticas intracraneales tanto benignas y malignas y hacer una revisión de estas lesiones según la edad de aparición,
localización y apariencia radiológica para poder hacer un correcto diagnóstico...
title: Dr. David C. Wherry, MD, FACS, FRCS, DMCC, COL, USAF, MC (Ret.) Oral History Interview Transcript
Creators: name: Uniformed Services University of the Health Sciences
Publisher: name: University Archives, Uniformed Services University of the Health Sciences, Bethesda, Maryland 20814
Year: 2009
Subjects: classificationCode: 3
subject: FOS: Medical and health sciences
classificationCode: 6.1
subject: FOS: History and archaeology

description: USU Oral History Interview Transcript
Dr. David C. Wherry, MD, FACS, FRCS, DMCC, COL, USAF, MC (Ret.)
Professor, Department of Surgery
09-02-2009
Interviewed by Emelie Rubin
Stochastic collisional quantum thermometry
Creators: name: O'Connor, Eoin
name: Vacchini, Bassano
name: Campbell, Steve
Publisher: name: arXiv
Year: 2021
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We extend collisional quantum thermometry schemes to allow for stochasticity in the waiting time between successive collisions. We establish that introducing randomness through a suitable waiting time distribution, the Weibull distribution, allows to significantly extend the parameter range for which an advantage over the thermal Fisher information is attained. These results are explicitly demonstrated for dephasing interactions and also hold for partial swap interactions. Furthermore, we show that the optimal measurements can be performed locally, thus implying that genuine quantum correlations do not play a role in achieving this advantage. We explicitly confirm this by examining the correlation properties for the deterministic collisional model.
description: 7 pages, 3 figures. Close to published version
title: TCMD torácico:comparación de técnicas de reconstrucción iterativas frente a filtros de retroproyección.
Creators: name: lopez, Andrés
Publisher: name: Sociedad Española de Radiología Médica
Year: 2014
Subjects: subject: Filter insertions
subject: CT-High Resolution
subject: Thorax
subject: Radioprotection / Radiation dose

description: Objetivos
Material y método
Resultados
Conclusiones
Bibliografía
description: Objetivos:
Exponer de forma didáctica en términos no matemáticoslos principios técnicos de los algoritmos de reconstrucción iterativa (RI) para tomografía computarizada (CT) disponibles comercialmente. Mostrar una visión global de los resultados...
Ultra-high-Q tunable whispering-gallery-mode microresonator
Creators: name: Pöllinger, M.
name: O'Shea, D.
name: Warken, F.
name: Rauschenbeutel, A.
Publisher: name: arXiv
Year: 2009
Subjects: subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: Typical microresonators exhibit a large frequency spacing between resonances and a limited tunability. This impedes their use in a large class of applications which require a resonance of the microcavity to coincide with a predetermined frequency. Here, we experimentally overcome this limitation with highly prolate-shaped whispering-gallery-mode "bottle microresonators" fabricated from standard optical glass fibers. Our resonators combine an ultra-high quality factor of 360 million, a small mode volume, and near lossless fibre coupling, characteristic of whispering-gallery-mode resonators, with a simple and customizable mode structure enabling full tunability.
description: 4 pages, 3 figures
Of flies, fitness and fluctuating environments
Creators: name: Roff, Derek A.
Publisher: name: University of British Columbia
Year: 2010

description: Environmental heterogeneity may be important in determining the amount of genetic variation within a population. Previous theoretical studies have analysed the importance of spatio-temporal variablity for ecological genetics within a very general framework. The present study attempts to analyse the consequences of environmental heterogeneity for a particular ecologically important character. The study is concerned with the evolution of body size in an 'r-selected' poikilotherm. Is body size. The measure of fitness, r, is determined by the fecundity of the organism and its development time. These two life history characters are correlated to body size and hence the latter may be used as a measure of changes in life history parameters, whether or not selection acts directly upon body size. A model is presented that relates the effect of spatial and temporal variation on body size. This effect may be due to direct effects on body size as with size selective predation or due to effects upon other characters such as development time. To demonstrate that the behaviour of the model does not result from implausible assumptions or parameter values the model is developed with reference to an organism for which these factors have been reasonably well studied. This group is the Drosophila and most particularly, Drosophila melanogaster. The conclusions drawn from the model are that spatial and temporal variability can determine both the optimum body size and the range in body size and that 'rare' events may have significantly more effect on the evolution of body size than the most frequently occurring conditions.
title: Semiología básica de las lesiones mamarias en la TC.
Creators: name: Puerta Sales, Alejandro
Publisher: name: Sociedad Española de Radiología Médica
Year: 2014
Subjects: subject: Breast
subject: Oncology
subject: CT
subject: Diagnostic procedure
subject: Pathology
subject: Neoplasia

description: Objetivo docente
Revisión del tema
Conclusiones
Bibliografía
description: Objetivo docente:
Mostrar las características básicas observadas en el TC para poder hacer la diferenciación entre lesiones benignas y malignas de mama,
y,
si es posible,
realizar un diagnóstico de...