cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
The measurement of wake and surface effects in the subcritical flow past a circular cylinder at rest and in vortex-excited oscillation
Creators: name: Ferguson, Nelson
Publisher: name: University of British Columbia
Year: 2011

description: A pressure transducer, sensitive to acoustic level pressures, was designed and used to measure amplitude, frequency and phase of fluctuating pressure on the surface of a three inch diameter circular cylinder at rest and exhibiting large-amplitude vortex-excited oscillation in a uniform incident wind flow. The phase of the fluctuating pressure relative to the cylinder motion and the cylinder amplitude and frequency were recorded. A disc probe connected to the pressure transducer was used in wake surveys for the stationary and oscillating cylinder. Measurements, made in the Reynolds number range 1.5(10⁴) <N(R)< 4.1(10⁴), indicated the following: Fluctuating pressures on the surface of both a stationary and a vortex-excited circular cylinder experience amplitude modulation, being random for the stationary cylinder and critically dependent on wind speed for the vortex-excited cylinder. Fluctuating pressures for both a stationary and an oscillating cylinder are in phase over one side of the cylinder and 180° out of phase with the opposite side. For a vortex-excited cylinder, the vortex frequency is 'captured' by the cylinder frequency over a discrete range of wind speed. The amplitude of fluctuating pressure on the surface of a vortex-excited cylinder increases as the resonant wind speed (wind speed corresponding to maximum cylinder amplitude) is approached, but before that actual wind speed is reached, an abrupt decrease occurs, and the amplitude modulation nearly disappears. A sudden change of phase between cylinder motion and fluctuating pressure occurs near the resonant wind speed and the pressure wave form becomes asymmetrical. The longitudinal spacing of vortices in the wake of a stationary and a vortex-excited cylinder initially increases as the vortices are swept downstream from the formation zone. Vortex-excited oscillation of a cylinder, as the resonant wind speed is approached, produces an increase in longitudinal vortex spacing and a corresponding abrupt decrease in lateral spacing. At the resonant wind speed, the wake loses its coherent periodicity.
An examination of management development programs
Creators: name: Foo, Chee Chin
Publisher: name: University of British Columbia
Year: 2011

description: This thesis is an attempt to identify and review some of the more salient aspects of management development programs and to ascertain whether or not there is a generally accepted approach to management training. The different levels of management development are examined first. This is followed by a discussion on the requirements of a manager. A study of the pre-requisites for these programs precedes the identification and evaluation of certain development activities and techniques. Following this are some case studies on how several large Vancouver-based companies conduct their programs. A critique of the evaluation of management training and a discussion on the problems encountered in these programs ensue. Finally, an endeavor is made to show that the approaches taken to management development programs are far from being uniform and a case is advocated for a greater effort to devise a more generally accepted framework of management training, flexible enough to accommodate particular needs and situations.
Emergence of large spin-charge interconversion at an oxidized Cu/W interface
Creators: name: Groen, Inge
name: Pham, Van Tuong
name: Ilić, Stefan
name: Choi, Won Young
name: Chuvilin, Andrey
name: Sagasta, Edurne
name: Vaz, Diogo C.
name: Arango, Isabel C.
name: Ontoso, Nerea
name: Bergeret, F. Sebastian
name: Hueso, Luis E.
name: Tokatly, Ilya V.
name: Casanova, Fèlix
Publisher: name: arXiv
Year: 2022
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: Spin-orbitronic devices can integrate memory and logic by exploiting spin-charge interconversion (SCI), which is optimized by design and materials selection. In these devices, such as the magnetoelectric spin-orbit (MESO) logic, interfaces are crucial elements as they can prohibit or promote spin flow in a device as well as possess spin-orbit coupling resulting in interfacial SCI. Here, we study the origin of SCI in a Py/Cu/W lateral spin valve and quantify its efficiency. An exhaustive characterization of the interface between Cu and W electrodes uncovers the presence of an oxidized layer (WO$_x$). We determine that the SCI occurs at the Cu/WO$_x$ interface with a temperature-independent interfacial spin-loss conductance of $G_{||} \approx$ 20 $\times$ 10$^{13} Ω^{-1}m^{-2}$ and an interfacial spin-charge conductivity $σ_{SC}=-$1610 $Ω^{-1}cm^{-1}$ at 10 K ($-$830 $Ω^{-1}cm^{-1}$ at 300 K). This corresponds to an efficiency given by the inverse Edelstein length $λ_{IEE}=-$0.76 nm at 10 K ($-$0.4 nm at 300 K), which is remarkably larger than in metal/metal and metal/oxide interfaces and bulk heavy metals. The large SCI efficiency at such an oxidized interface is a promising candidate for the magnetic readout in MESO logic devices.
description: 11 pages, 3 figures, and Supplemental Material
Letter to the presidents of the National Conferences of Bishops concerning Eucharistic prayers =Eucharistiae participationem, April 27, 1973. Sacred Congregation for Divine Worship.
Creators: name: Catholic Church. Congregatio Pro Cultu Divino.
Publisher: name: University of Notre Dame
Year: 2023

description:
 Title from cover.
 Letter signed: A. Bugnini, Titular Bishop of Diocletian, Secretary.
 Translation of: Eucharistiae participationem.
Augmented space recursion code and application in simple binary metallic alloy
Creators: name: Banerjee, Rudra
name: Mookerjee, Abhijit
Publisher: name: arXiv
Year: 2009
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: FOS: Physical sciences

description: We present here an optimized and parallelized version of the {\sl augmented space recursion code} for the calculation of the electronic and magnetic properties of bulk disordered alloys, surfaces and interfaces, either flat, corrugated or rough, and random networks. Applications have been made to bulk disordered alloys to benchmark our code.
A citizen science project reveals contrasting latitudinal gradients of wing deformity and parasite infection of monarch butterflies in New Zealand
Creators: name: Lester, Philip
name: Bulgarella, Mariana
Publisher: name: Open Access Victoria University of Wellington | Te Herenga Waka
Year: 2021
Subjects: subject: 50199 Ecological Applications not elsewhere classified
subject: FOS: Earth and related environmental sciences
subject: Zoology
subject: FOS: Biological sciences
subject: Ecology

description: 1. Host–parasite interactions represent complex relationships among species, often with considerable spatial variation. We examined latitudinal variation in the prevalence of monarch butterfly (Danaus plexippus) infection by the protozoan parasite Ophryocystis elektroscirrha via a citizen science project in New Zealand. Parasitism by O. elektroscirrha can result in incomplete development causing mortality, or adult butterflies with deformed wings and reduced fitness. 2. We established the existence of counter-latitudinal clines of wing deformities and parasite prevalence in monarchs, which in New Zealand are non-migratory. The prevalence of wing deformities increased with increasing latitude, whereas the prevalence of parasite infections decreased with increasing latitude. No parasitism was observed in our highest latitudinal location, while all butterfly samples were infected in the warmest and lowest latitudinal site. The prevalence of parasitism or wing deformity did not vary with the butterfly sex. 3. Cold temperatures appear to independently affect the parasite and host butterfly development, with lower temperatures limiting parasite development and inducing wing deformities in butterflies. Other protozoan parasites display similar latitudinal clines that are thought to be temperature related. 4. Environmental factors appear to independently influence insect populations through different mechanistic pathways. The high prevalence of parasite infections may affect butterfly fitness in warmer regions, but the cooler conditions at higher latitudes manifest as a major fitness cost, deformed wings. Monarch butterflies in New Zealand and around the world may perform better where it is not too hot (and optimal for these parasites), but not cold (where the pupae experience developmental issues).
Epistemological Letters 27
Creators: name: Evrard, D.
name: Selleri, F.
name: Costa de Beauregard, O.
name: Moldauer, P.A.
name: Fraisse, R.
Publisher: name: University of Notre Dame
Year: 2023

description: Issue 27 is a written symposium on the foundations of quantum physics, edited by François Bonsack, Abner Shimony, and others. It was published and distributed to a limited mailing list by Association Ferdinand Gonseth.
Simple method for determining asymptotic states of fast neutrino-flavor conversion
Creators: name: Zaizen, Masamichi
name: Nagakura, Hiroki
Publisher: name: arXiv
Year: 2022
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: Neutrino-neutrino forward scatterings potentially induce collective neutrino oscillation in dense neutrino gases in astrophysical sites such as core-collapse supernovae (CCSN) and binary neutron star mergers (BNSM). In this paper, we present a detailed study of fast neutrino-flavor conversion (FFC), paying special attention to asymptotic states, by linear stability analysis and local simulations with a periodic boundary condition. We find that asymptotic states can be characterized by two key properties of FFC: (1) the conservation of lepton number for each flavor of neutrinos and (2) the disappearance of ELN(electron neutrino-lepton number)-XLN(heavy-leptonic one) angular crossings in the spatial- or time-averaged distributions. The system which initially has the positive (negative) ELN-XLN density reaches a flavor equipartition in the negative (positive) ELN-XLN angular directions, and the other part compensates it to preserve the conservation laws. These properties of FFCs offer an approximate scheme determining the survival probability of neutrinos in asymptotic states without solving quantum kinetic equations. We also demonstrate that the total amount of flavor conversion can vary with species-dependent neutrino distributions for identical ELN-XLN ones. Our results suggest that even shallow or narrow ELN angular crossings have the ability to drive large flavor conversion, exhibiting the need for including the effects of FFCs in the modeling of CCSN and BNSM.
description: 11 pages, 6 figures, Accepted to PRD
title: An Evaluation of the Differences Among Lower, Middle and Upper Socio-Economic Groups in the Sixth Grades in the Ogden City Schools with Regard to Scholastic Achievement
Creators: name: Kendrick, Milton
Publisher: name: Utah State University
Year: 1965

description: There are some inadequacies in our American way of life. One of these is the inadequate help and attention given to the problem of children who become shackled with their lower class environment with little or no desire to incentive to rise above this. The major challenge to any teacher is the ability to stimulate and inspire children to achieve or succeed. There are different degrees of achievement. For one child, great achievement is not the same as for another. The realization of this prompted the decision to see what differences in achievement exist among the three main socio-economic classes.
Quantum correlations in dissipative gain-loss systems across exceptional points
Creators: name: Roccati, Federico
name: Purkayastha, Archak
name: Palma, G. Massimo
name: Ciccarello, Francesco
Publisher: name: arXiv
Year: 2022
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We investigate the behavior of correlations dynamics in a dissipative gain-loss system. First, we consider a setup made of two coupled lossy oscillators, with one of them subject to a local gain. This provides a more realistic platform to implement parity-time (PT) symmetry circumventing the implementation of a pure gain. We show how the qualitative dynamics of correlations resembles that for a pure-gain-loss setup. The major quantitative effect is that quantum correlations are reduced, while total ones are enhanced. Second, we study the behavior of these correlations across an exceptional point (EP) outside of the PT-symmetric regime of parameters, observing how different behaviors across the EP occur only in the transient dynamics. This shows how PT symmetry plays a relevant role at large times.
description: 6 pages, 6 figures. Submitted to the EPJST Special Issue "Recent Advances in Collective Phenomena"
Relationships of pulsed frequency and anammox bacteria growth rate, at low temperatures
Creators: name: Zhang, Chi
name: Wang, Chao
name: Lv, Ze
name: Hu, Xiaomin
Publisher: name: Taylor & Francis
Year: 2022
Subjects: subject: Space Science
subject: Microbiology
subject: FOS: Biological sciences
subject: Cell Biology
subject: Evolutionary Biology
subject: Chemical Sciences not elsewhere classified
subject: Ecology
subject: Inorganic Chemistry
subject: FOS: Chemical sciences
subject: Infectious Diseases
subject: FOS: Health sciences

description: This study explored pulsed frequency that could enhance the anammox bacteria growth rate and TN removal rate at low temperatures (16 ± 1°C). The results showed that the growth rate of anammox bacteria in R1 (1000 Hz) was significantly higher than in R2 (30 Hz) and R3 (106Hz). The relative abundance values of anammox bacteria R1 were higher by 52.21% and 172.41% than R2 and R3, while that of MLSS were as high as 241.07% and 471.36% than R2 and R3, with the nitrogen loading rate was 6.84 kg-N/m³/d. Besides, the dynamics also showed that the specific anammox activity (SAA) and the cellular yield of R1 were higher than R2 and R3. The intermediate frequency could enhance the cell division by stimulating the anammoxosome and reduce the ionic hydration layer to accelerate the ion migration rate, further improving the number of anammox bacteria even at low temperatures. The pulsed frequency could enhance the anammox growth rate and the doubling time is just 5 d.
The AGN fraction of submm-selected galaxies and contributions to the submm/mm-wave extragalactic background light
Creators: name: Serjeant, S.
name: Negrello, M.
name: Pearson, C.
name: Mortier, A.
name: Austermann, J.
name: Aretxaga, I.
name: Clements, D.
name: Chapman, S.
name: Dye, S.
name: Dunlop, J.
name: Dunne, L.
name: Farrah, D.
name: Hughes, D.
name: Lee, H. -M.
name: Matsuhara, H.
name: Ibar, E.
name: Im, M.
name: Jeong, W. -S.
name: Kim, S.
name: Oyabu, S.
name: Takagi, T.
name: Wada, T.
name: Wilson, G.
name: Vaccari, M.
name: Yun, M.
Publisher: name: arXiv
Year: 2010
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: We present a comparison of the SCUBA Half Degree Extragalactic Survey (SHADES) at 450, 850 and 1100 microns with deep guaranteed time 15 microns AKARI FU-HYU survey data and Spitzer guaranteed time data at 3.6-24 microns in the Lockman Hole East. The AKARI data was analysed using bespoke software based in part on the drizzling and minimum-variance matched filtering developed for SHADES, and was cross calibrated against Infrared Space Observatory (ISO) fluxes. Our stacking analyses find AKARI 15um galaxies with >~200 microJy contribute >10% of the 450 micron background, but only <4% of the 1100 micron background, suggesting that different populations contribute at mm-wavelengths. We confirm our earlier result that the ultra-deep 450 micron SCUBA-2 Cosmology Survey will be dominated by populations already detected by AKARI and Spitzer mid-infrared surveys. The superb mid-infrared wavelength coverage afforded by combining Spitzer and AKARI photometry is an excellent diagnostic of AGN contributions, and we find that (23-52)% of submm-selected galaxies have AGN bolometric fractions f_AGN>0.3.
description: Accepted for Astronomy and Astrophysics AKARI special issue
title: A History of the Utah State University Elementary Teacher Education Laboratory School
Creators: name: Turner, R. Eyre
Publisher: name: Utah State University
Year: 1965

description: The Utah State University has had a university controlled elementary teacher education laboratory school since 1928. In that year, the University, then the Utah Agricultural College, leased the Whittier School from the Logan City Board of Education. The Whittier continued to be used until the summer of 1957 when the newly constructed Edith Bowen Laboratory School became the center of elementary teacher education.
title: Feeling the Drive: The International Meridian Highway, Regional Boosters, and the Redefinition of Space, 1911-1930
Creators: name: Johnson, Amanda N.
Publisher: name: Utah State University
Year: 2014

description: This thesis explores the origins of the International Meridian Highway, now U.S. Highway 81, from its naissance in 1911 until the late 1920s. In these two decades, regional boosters in the middle of the United States joined a national movement, the Good Roads Movement, to promote new, democratic understandings of space and geography. The boosters of the International Meridian Highway promoted their road as a “Main Street of North America,” centering the focus of both movement and activity through the middle of the United States. While these boosters were successful in developing and promoting their highway, ultimately they became victims of their own success. As the fervor for highways spread, the United States government took control of road development and the International Meridian Highway Association faded into obscurity. However, their actions as boosters still mark a significant movement in self-promotion of middle America.
DESI Mock Challenge: Halo and galaxy catalogs with the bias assignment method
Creators: name: Balaguera-Antolínez, Andrés
name: Kitaura, Francisco-Shu
name: Alam, Shadab
name: Chuang, Chia-Hsun
name: Yu, Yu
name: Favole, Ginevra
name: Zhao, Cheng
name: Sinigaglia, Francesco
name: Brooks, David
name: de la Macorra, Axel
name: Font-Ribera, Andreu
name: Gontcho, Satya Gontcho A
name: Honscheid, Klaus
name: Kehoe, Robert
name: Meisner, Aron
name: Miquel, Ramon
name: Tarlè, Gregory
name: Vargas-Magaña, Mariana
name: Zhou, Zhimin
Publisher: name: arXiv
Year: 2022
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: We present a novel approach to the construction of mock galaxy catalogues for large-scale structure analysis based on the distribution of dark matter halos obtained with effective bias models at the field level. We aim to produce mock galaxy catalogues capable of generating accurate covariance matrices for a number of cosmological probes that are expected to be measured in current and forthcoming galaxy redshift surveys (e.g. two- and three-point statistics). We use the bias assignment method (BAM) to model the statistics of halo distribution through a learning algorithm using a few detailed $N$-body simulations, and approximated gravity solvers based on Lagrangian perturbation theory. Using specific models of halo occupation distributions, we generate galaxy mocks with the expected number density and central-satellite fraction of emission-line galaxies, which are a key target of the DESI experiment. BAM generates mock catalogues with per cent accuracy in a number of summary statistics, such as the abundance, the two- and three-point statistics of halo distributions, both in real and redshift space. In particular, the mock galaxy catalogues display $\sim 3\%-10\%$ accuracy in the multipoles of the power spectrum up to scales of $k\sim 0.4\,h^{-1}{\rm Mpc}$. We show that covariance matrices of two- and three-point statistics obtained with BAM display a similar structure to the reference simulation. BAM offers an efficient way to produce mock halo catalogues with accurate two- and three-point statistics, and is able to generate a variety of multi-tracer catalogues with precise covariance matrices of several cosmological probes. We discuss future developments of the algorithm towards mock production in DESI and other galaxy-redshift surveys. (Abridged)
description: Accepted for publication at A&A
title: Economics of Airlift
Creators: name: Tucker, Riggs M.
Publisher: name: Utah State University
Year: 1965

description: The purposes of this paper are to analyze past airlift conditions, show why airlift should be adopted, and to determine an effective airlift policy and method of operation that would provide the United States an economical, flexible, and efficient airlift force, helping to ensure the security of the nation.
The properties of wind and jet from a super-Eddington accretion flow around a supermassive black hole
Creators: name: Yang, Hai
name: Yuan, Feng
name: Kwan, Tom
name: Dai, Lixin
Publisher: name: arXiv
Year: 2022
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: Wind and jet are important medium of AGN feedback thus it is crucial to obtain their properties for the feedback study. In this paper we investigate the properties of wind and jet launched from a magnetized super-Eddington accretion flow around a supermassive black hole. For this aim, we have performed radiation magnetohydrodynamical simulation of a magnetically arrested super-Eddington accretion flows. We then have analyzed the simulation data by the ``virtual particle trajectory'' approach and obtained the mass flux, poloidal and toroidal velocities, and mass-flux-weighted momentum and energy fluxes of wind and jet. The mass flux is found to be 2-6 times higher than that obtained based on the time-averaged streamline method widely used in literature. The momentum flux of wind is found to be larger than that of jet, while the total energy flux of jet is at most 3 times larger than that of wind. These results are similar to the case of hot accretion flows and imply that winds likely play a more important role than jet in AGN feedback. The acceleration mechanism of wind and jet is analyzed and found to be dominated by Lorentz force rather than radiation force.
description: 13 pages, 13 figures; Accepted for publication in MNRAS
title: A Genetic Study of Linkage and Inheritance in Barley
Creators: name: Oldham, Jerald Dean
Publisher: name: Utah State University
Year: 1962

description: With the exception of corn, barley has probably been used more than any other cultivated plant in gene tic studies. It was one of several plants with which Erich von Tschermak-Seysenegg was working when he discovered Mendel's paper.
title: The Effect of Range Condition Upon the Production, Nutritive Intake and Digestibility of Desert Range Forage in Southwestern Utah
Creators: name: Taylor, J. Kent
Publisher: name: Utah State University
Year: 1962

description: The 65 million acres of winter range in the Intermountain region furnish forage for about five million sheep and four million cattle each winter for approximately six months. These arid ranges are well suited for winter grazing, and are of paramount importance to the livestock industry. Many of these ranges were fully stocked by 1900 and as livestock continued to increase, many winter ranges were seriously over-grazed (Hutchings and Stewart, 1953). Today many of these ranges remain in a deteriorated condition. Forage production has decreased and desirable plants have been replaced by less desirable species.
Little is known about the relative production, palatability, digestibility, and nutrient content of forage plants found on ranges in poor condition compared to ranges in good condition, yet such information is fundamental to good range and livestock management.
In order to learn more about the effect of range condition upon the forage intake and nutrient content for sheep a study was conducted on typical winter range in southwestern Utah during the winter grazing seasons of 1957-58.
Features of the flexomagnetoelectric effect in an external magnetic field
Creators: name: Vakhitov, Robert
name: Solonetskiy, Rostislav
name: Nizyamova, Alina
Publisher: name: arXiv
Year: 2022
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: The paper investigates the influence of the magnetic field on the behavior of 180-degree domain boundaries in a uniaxial ferromagnetic film with inhomogeneous magnetoelectric interaction. It is shown that, depending on the magnitude and direction of the field, it is possible to strengthen or weaken the flexomagnetoelectric effect in the sample under study. In addition, it was found that in the reverse field, the effect of switching the nature of the interaction of the electric field source with the domain wall from attraction to repulsion is possible.
description: 13 pages, 9 drawings
Economic feasibility of basic chemical manufacturing in the province of British Columbia
Creators: name: Dobbie, John Wright
Publisher: name: University of British Columbia
Year: 2011

description: The requirements for an investment in a chemical manufacturing plant to be economically feasible have been investigated. The items studied included the market which exists for chemicals, the resources required to manufacture chemicals, and the finances commited to the investments in manufacturing plants. The chemical plants investigated were confined to that sector defined as basic and intermediate chemicals, further, the study was restricted to the geographic region of British Columbia. Three sources of information were pertinent to this study. These were the external trade data for the province of British Columbia, available through Victoria from the Dominion Bureau of Statistics; the growth in the forest industry, available from journals and news releases; and specific expense information, obtained or confirmed from private communication with various individuals in the industries pertinent to the study. Other miscellaneous books, publications, and unpublished materials were used as required to complete the analysis of the study. The perinent information including markets and prices (revenue), resources (expenses), and capital commitment were combined to determine rate of return on investment. Return was considered to be the principal criteria for the evaluation of the economic feasibility of a chemical manufacturing plant. The results of the study indicated that the growth of the forest industry accounted for the feasibility of chemical plants in the province in the recent past and the near term future. The chemical pulp exports especially to Japan and Europe are expected to sustain growth in pulping and bleaching chemicals. A declining per capita consumption for plywood and increased exports of this material are expected to sustain a straight line growth in plywood resin chemicals in the near term future. The possibilities for opportunities in basic aromatic chemicals, and plastics, and synthetic detergent intermediates were outlined, all of which would require market development. Resources and capital commitment were not found to be a restriction upon economic feasibility. Sulphur and petroleum are available within the province, but the majority of the mineral raw materials are imported. Technology was in each case the organization's own. Capital for the investments made in British Columbia has been provided by the routine operations of the parent organization, and funds flow from the local plants operations should sustain expansion. The return on investment for the basic chemical plants which have been established recently in British Columbia was found to be modest in the short run. Various factors contributed to reductions in rate of return including rate of incremental expansion, market structure change, price reductions, and competition.
Anomalous magnetohydrodynamics with temperature-dependent electric conductivity and application to the global polarization
Creators: name: Peng, Hao-Hao
name: Wu, Sihao
name: Wang, Ren-jie
name: She, Duan
name: Pu, Shi
Publisher: name: arXiv
Year: 2022
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: We have derived the solutions of the relativistic anomalous magnetohydrodynamics with longitudinal Bjorken boost invariance and transverse electromagnetic fields in the presence of temperature or energy density dependent electric conductivity. We consider the equations of states in a high temperature limit or in a high chiral chemical potential limit. We obtain both perturbative analytic solutions up to the order of \hbar and numerical solutions in our configurations of initial electromagnetic fields and Bjorken flow velocity. Our results show that the temperature or energy density dependent electric conductivity plays an important role to the decaying of the energy density and electromagnetic fields. We also implement our results to the splitting of global polarization for Λand \barΛ hyperons induced by the magnetic fields. Our results for the splitting of global polarization disagree with the experimental data in low energy collisions, which implies that the contribution from gradient of chemical potential may dominate in the low energy collisions.
Minimal Leptogenesis in Brane-inspired Cosmology
Creators: name: Di Marco, Alessandro
name: Banik, Amit Dutta
name: Ghoshal, Anish
name: Pradisi, Gianfranco
Publisher: name: arXiv
Year: 2022
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We discuss how a post inflationary reheating phase characterized by a nonstandard multiple scalar field cosmology can change the thermal history of the universe, affecting minimal high scale leptogenesis. In particular, we explore a class of models where a set of scalar fields in a brane-inspired dynamical scenario modifies the Boltzmann equations concerning standard leptogenesis. The produced lepton asymmetry, due to the decays of heavy Majorana right-handed neutrinos responsible for generating Standard Model neutrino masses via the type-I seesaw, is affected as well.
description: 17 pages, 8 figures
Optical isolation by temporal modulation: size, frequency, and power constraints
Creators: name: Khurgin, Jacob B
Publisher: name: arXiv
Year: 2022
Subjects: subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: Optical isolators are indispensable components of optical networks. Magneto-optic isolators have excellent operating characteristics, including low-to-no power consumption, but are not well suited for on-chip integration. The technique of temporal modulation of dielectric constant offers an alternative way to achieve isolation without magnetic field but is not without its own drawbacks. In this work I examine diverse methods of optical isolation via temporal modulation and show that independent on whether modulation is achieved by carrier injection, Pockels and acousto-optic effects, or any other conceivable method, there is essentially the same set of constraints on footprint, modulation frequency, and, most important, on power consumption required to achieve full isolation without excessive insertion loss. This power is estimated to be on the order of at least a hundred of milliwatts and whether this requirement is acceptable will depend on ongoing progress of both magneto-optic and time modulated integrated technologies.
Dynamically generated resonances from the vector octet-baryon decuplet interaction
Creators: name: Sarkar, Sourav
name: Sun, Bao-Xi
name: Oset, E.
name: Vacas, M. J. Vicente
Publisher: name: arXiv
Year: 2009
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We study the interaction of the octet of vector mesons with the decuplet of baryons using Lagrangians of the hidden gauge theory for vector interactions. The unitary amplitudes in coupled channels develop poles that can be associated with some known baryonic resonances, while there are predictions for new ones at the energy frontier of the experimental research. The work offers guidelines on how to search for these resonances.
title: A Critical Analysis of Water Rights and Institutional Factors and Their Effect on the Development of Logan River
Creators: name: Haws, Frank W.
Publisher: name: Utah State University
Year: 1965

description: The physical setting of the Logan River Drainage Basin is first described with emphasis on the hydrologic and climatic factors that made the river an economic and social benefit.
The historical development of the river by man is then traced, and changes in water use patterns are pointed out. Methods used to administer water rights as water use patterns change is then described.
Legal controversies over water rights on the river are examined and methods of solving problems analyzed. A recent law suit between Logan City Corporation and the Logan River Water Users Association is examined in detail and the benefits resulting from the litigation noted.
Drilling four new wells to supplement the City supply avoided costly judgements and benefited all users.
Smooth Metric Adjusted Skew Information Rates
Creators: name: Yamaguchi, Koji
name: Tajima, Hiroyasu
Publisher: name: arXiv
Year: 2022
Subjects: subject: Quantum Physics (quant-ph)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: Metric adjusted skew information, induced from quantum Fisher information, is a well-known family of resource measures in the resource theory of asymmetry. However, its asymptotic rates are not valid asymmetry monotone since it has an asymptotic discontinuity. We here introduce a new class of asymmetry measures with the smoothing technique, which we term smooth metric adjusted skew information. We prove that its asymptotic sup- and inf-rates are valid asymptotic measures in the resource theory of asymmetry. Furthermore, it is proven that the smooth metric adjusted skew information rates provide a lower bound for the coherence cost and an upper bound for the distillable coherence.
description: 26 pages, 2 figures. Accepted in Quantum
The application of the critical path method to aircraft maintenance
Creators: name: Summers, Harold Angus Charles
Publisher: name: University of British Columbia
Year: 2011

description: The use of expensive and highly specialized equipment in any industry is only advisable if the eost of the equipment can be justified by a sufficiently large output. The greater the output, the smaller will be the cost of the equipment to be borne by each unit. Thus, once such equipment has been purchased, management endeavours to maintain output at a maximum in order to reduce unit costs or to increase profits. It is for this reason that airline managements continually endeavour to increase the utilization of jet aircraft. By increasing the number of revenue flying hours only one hour each week on one jet aircraft, an airline will realize an additional net contribution to overhead (or profits) of approximately $60,000 per year. One method of increasing utilization is to decrease the downtime of the aircraft for maintenance purposes. This requires a reduction of the total elapsed time of the maintenance check. The critical path technique has found wide application in solving the general problem of reducing the time required to complete a project which consists of many inter-related jobs. For example, the technique has been used to reduce the time required for constructing a building, for completing the periodic overhaul of a chemical plant, and for completing the Polaris Missile Development Program. It was therefore felt that the critical path technique might be of use in solving this problem of increasing the utilization of jet aircraft. This thesis, based on the results of a study carried out at Canadian Pacific Air Lines during the months of May through August, 1963, describes the various ways in which the technique can be of use in solving this problem. It was found that the technique did have a wide applicability. In the initial period of application, it would be of great value as a tool for analyzing the problems of the check. It can be used both to point out the jobs or chains of jobs which prohibit the reduction of the check time and also to direct the revision of the scheduling of these jobs in such a way that the elapsed time is reduced. This reduction of elapsed time will have the effect of increasing the number of jobs which must be completed at the earliest possible time if the check completion time is to be a minimum. As a result there will be a greater need to use the technique both for scheduling and monitoring all the jobs of the check.
title: Family Leadership: Constructing and Testing a Theoretical Model of Family Well-Being
Creators: name: Galbraith, Kevin A.
Publisher: name: Utah State University
Year: 2000

description: Leadership in organizational contexts has received considerable attention through the years. Although much is known about what constitutes effective leadership in an organizational setting, little is known about leadership as it pertains to the family. To address this limitation, a theoretical model of family leadership was developed. This model draws on transformational leadership and proposes five areas in which leadership could be carried out to lead and strengthen the family unit. These five areas include ( 1) leading the family with a vision, (2) maintaining a task orientation, (3) fostering close familial relationships, (4) establishing cooperation and teamwork, and (5) building connections and ties with support networks that are external to the family.
In accordance with this theoretical model, it was hypothesized that favorable family outcomes, such as higher levels of cohesion, effective communication, lower levels of conflict, and family involvement are associated with a transformational style of leadership. This hypothesis was tested using a convenience sample of 231 two-parent families. consisting of a father, mother, and an adult child from each family. Family well-being was assessed by each child using The Family Profile, and the leadership style of each parent was assessed using the Multifactor Leadership Questionnaire. Using cluster analysis, four combinations of husband-wife leadership styles emerged. Based on these four leadership clusters, ANOV A was used to assess differences in family outcomes.
Significant differences were found when comparing the couples characterized by active transformational leadership to those who were passive, or had a laissez-faire style of leadership. Compared to couples with passive leadership styles, couples with active leadership styles tended to have higher scores on the positive dimensions of family wellbeing (Family Concordance, Marital Strength, Active Involvement, and Religiosity) and lower scores on the negative dimension (Family Discordance). With the exception of a difference between the couples in the active leadership cluster and the couples in another cluster on the Religiosity outcome scale, no other differences were found among the couples in the four leadership clusters.
Demonstration of Frequency Stability limited by Thermal Fluctuation Noise in Silicon Nitride Nanomechanical Resonators
Creators: name: Zhang, Chang
name: St-Gelais, Raphael
Publisher: name: arXiv
Year: 2022
Subjects: subject: Applied Physics (physics.app-ph)
subject: FOS: Physical sciences

description: The frequency stability of nanomechanical resonators (NMR) dictates the performance level of many state-of-the-art sensors (e.g., mass, force, temperature, radiation) that relate an external physical perturbation to a resonance frequency shift. While this is obviously of fundamental importance, accurate models and understandings of sources of frequency instability are not always available. The contribution of thermomechanical noise to frequency stability has been well studied in recent years and is often the fundamental performance limitation. Frequency stability limited by thermal fluctuation noise has attracted less interest but is nevertheless of fundamental importance notably in temperature sensing applications. In particular, temperature-sensitive NMR have become promising candidates for replacing traditional bolometers in infrared radiation sensing. However, reaching the ultimate detectivity limit of thermal radiation sensors requires their noise to be dominated by fundamental thermal fluctuation, which has not been demonstrated to date. In this work, we first develop a theoretical model for computing the frequency stability of NMR by considering the effect of both additive phase noise (i.e., thermomechanical, and experimental detection noise) and thermal fluctuation noise in a close-loop frequency tracking scheme. We thereafter validate this model experimentally and observe thermal fluctuation noise in SiN drum resonators of various sizes. Our work shows that by using resonators of specific characteristics--such as high temperature sensitivity, high mechanical quality factors, and high mass-to-thermal-conductance ratio--one can minimize additive phase noise below thermal fluctuation noise. This paves the way for NMR-based radiation sensors that can reach the fundamental detectivity limit of thermal radiation sensing and outperform existing technologies.
title: Sunday Time Use Among LDS Adolescents
Creators: name: Williams, C. Lewis
Publisher: name: Utah State University
Year: 1990

description: The purpose of this study was to examine a sample of LDS (Church of Jesus Christ of Latter-day Saints) adolescents from 9th - 12th grade to analyze how they spend their time on a given Sunday. The intent of the paper was to determine if adolescent time use was influenced by such independent variable as gender, age, living arrangements, work, school, perceptions of their family, and what time of the day the youth attend Sunday meetings on a specific Sunday. A questionnaire was given to 272 students who attend released school time seminary at a particular high school in Utah. Each student in the sample provided information relative to themselves and their family. They also provided information as to what they mostly did during 15 minute increments for a 24 hour period starting at midnight Saturday night and going through midnight on Sunday night. They were given 28 different items of time use common to adolescents and then were asked to determine what they did most during each 15 minute increment on the Sunday being examined. Simultaneously another similar study was being performed by another graduate student, at an alternative high school in the same area as this study, and the same questions concerning time usage were asked. Some of the most striking differences in time usage were that the alternative high school students spent far less time attending church and doing homework for school, and much more time working for paid employment, socializing with their friends, and using drugs and alcohol.
Some of the most significant findings of the study include: 1) males spent considerably more time watching TV and videos, hanging out, cruising and being with friends, working, and playing athletics whereas the females spent more time with personal grooming, talking on the phone and studying school assignments, 2) the time of day when church meetings were held did not influence significantly now when church meetings were held did not alter significantly the number who attended their Sunday meetings, and 3) the perceived degree of family strengths held by the youth did not alter significantly how they spent their Sunday time. Other significant findings include: 4) those youth over 16 spent more time with friends out of the home, less time watching TV and videos, and more time doing paid employment on Sunday, 5) youth who live with both parents spent more time doing school assignments and attending church meetings and 6) those adolescents who work on Sunday spent an average of almost two and a half hours working on Sunday, and they watched TV and videos more and spent less time with their family.
Drop impact on superheated surfaces: from capillary dominance to non-linear advection dominance
Creators: name: Chantelot, Pierre
name: Lohse, Detlef
Publisher: name: arXiv
Year: 2022
Subjects: subject: Fluid Dynamics (physics.flu-dyn)
subject: Soft Condensed Matter (cond-mat.soft)
subject: FOS: Physical sciences

description: Ambient air cushions the impact of drops on solid substrates, an effect usually revealed by the entrainment of a bubble, trapped as the air squeezed under the drop drains and liquid-solid contact occurs. The presence of air becomes evident for impacts on very smooth surfaces, where the gas film can be sustained, allowing drops to bounce without wetting the substrate. In such a non-wetting situation, Mandre & Brenner (2012) numerically and theoretically evidenced that two physical mechanisms can act to prevent contact: surface tension and non-linear advection. However, the advection dominated regime has remained hidden in experiments as liquid-solid contact prevents to realize rebounds at sufficiently large impact velocities. By performing impacts on superheated surfaces, in the so-called dynamical Leidenfrost regime Tran et al. (2012), we enable drop rebound at higher impact velocities, allowing us to reveal this regime. Using high-speed total internal reflection, we measure the minimal gas film thickness under impacting drops, and provide evidence for the transition from the surface tension to the non-linear inertia dominated regime. We rationalise our measurements through scaling relationships derived by coupling the liquid and gas dynamics, in the presence of evaporation.
Lattice Quantum Villain Hamiltonians: Compact scalars, $U(1)$ gauge theories, fracton models and Quantum Ising model dualities
Creators: name: Fazza, Lucca
name: Sulejmanpasic, Tin
Publisher: name: arXiv
Year: 2022
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: High Energy Physics - Lattice (hep-lat)
subject: FOS: Physical sciences

description: We construct Villain Hamiltonians for compact scalars and abelian gauge theories. The Villain integers are promoted to integral spectrum operators, whose canonical conjugates are naturally compact scalars. Further, depending on the theory, these conjugate operators can be interpreted as (higher-form) gauge fields. If a gauge symmetry is imposed on these dual gauge fields, a natural constraint on the Villain operator leads to the absence of defects (e.g. vortices, monopoles,...). These lattice models therefore have the same symmetry and anomaly structure as their corresponding continuum models. Moreover they can be formulated in a way that makes the well-know dualities look manifest, e.g. a compact scalar in 2d has a T-duality, in 3d is dual to a U(1) gauge theory, etc. We further discuss the gauged version of compact scalars on the lattice, its anomalies and solution, as well as a particular limit of the gauged XY model at strong coupling which reduces to the transverse-field Ising model. The construction for higher-form gauge theories is similar. We apply these ideas to the constructions of some models which are of interest to fracton physics, in particular the XY-plaquette model and the tensor gauge field model. The XY-plaquette model in 2+1d coupled to a tensor gauge fields at strong gauge coupling is also exactly described by a transverse field quantum $J_1-J_2$ Ising model with $J_1=2J_2$, and discuss the phase structure of such models.
description: Accepted for publication in JHEP. 38 pages, 4 figures