cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
title: Information and Hardness Quantification of Graphs: A Computational Study
Creators: name: Dutson, Brent
Publisher: name: Utah State University
Year: 2014

description: New techniques to measure the information contained within a network of interconnected nodes (such as links between computers in the Internet) have recently been developed. This work studies the relationship between the computer time needed to solve a common network problem and the information contained within the given network.
The strongest column : a matrix approach
Creators: name: Kerr, Peter A.
Publisher: name: University of British Columbia
Year: 2011

description: The strongest column problem is defined, for this thesis, as the determination of the column shape which gives the maximum Euler buckling load for a given length, volume of material, type of cross-section and type of tapering. This thesis presents a new method - the matrix method - for solving some strongest column problems. In the matrix method a member is approximated by a number of uniform sub-members. A structure stiffness matrix, with the effect of axial force on deflections included, is generated from the sub-members. By setting the determinant of this matrix equal to zero the critical buckling load and the buckled shape of the member in the first mode are found. The section properties of the sub-members are then altered, according to the constant stress criterion, so that the extreme fibre bending stress, determined from the first mode, is the same in each sub-member. The process is repeated until the stresses are sufficiently close to being equal so that no further alterations are required. The optimum shape is taken from the last iteration. The constant stress criterion is based on the fact that, when certain conditions are satisfied, the extreme fibre bending stress at any section is constant along the length of the strongest column when it is buckled in the first mode. The matrix method gives results in very close agreement with those found by previous authors for cases where the constant stress criterion is valid. For the one example presented where the constant stress criterion was not valid, the column buckling under its own weight, the matrix method gave poor results.
Theoretical investigation of a miniature microwave driven plasma jet
Creators: name: Klute, Michael
name: Porteanu, Horia-Eugen
name: Stefanovic, Ilija
name: Heinrich, Wolfgang
name: Awakowicz, Peter
name: Brinkmann, Ralf Peter
Publisher: name: Bristol : IOP Publ.
Year: 2020
Subjects: subject: ICP
subject: inductively
subject: microwave
subject: miniature
subject: plasma jet
subject: RF
subject: 530

description: Radio frequency driven plasma jets are compact plasma sources which are used in many advanced fields such as surface engineering or biomedicine. The MMWICP (miniature micro wave ICP) is a particular variant of that device class. Unlike other plasma jets which employ capacitive coupling, the MMWICP uses the induction principle. The jet is integrated into a miniature cavity structure which realizes an LC-resonator with a high quality factor. When excited at its resonance frequency, the resonator develops a high internal current which—transferred to the plasma via induction—provides an efficient source of RF power. This work presents a theoretical model of the MMWICP. The possible operation points of the device are analyzed. Two different regimes can be identified, the capacitive E-mode with a plasma density of ne ≈ 5 × 1017 m−3, and the inductive H-mode with densities of ne ⩾ 1019 m−3. The E to H transition shows a pronounced hysteresis behavior.
Multivariate Granger Causality and Generalized Variance
Creators: name: Barrett, Adam B.
name: Barnett, Lionel
name: Seth, Anil K.
Publisher: name: arXiv
Year: 2010
Subjects: subject: Neurons and Cognition (q-bio.NC)
subject: Data Analysis, Statistics and Probability (physics.data-an)
subject: Quantitative Methods (q-bio.QM)
subject: Methodology (stat.ME)
subject: FOS: Biological sciences
subject: FOS: Physical sciences
subject: FOS: Computer and information sciences

description: Granger causality analysis is a popular method for inference on directed interactions in complex systems of many variables. A shortcoming of the standard framework for Granger causality is that it only allows for examination of interactions between single (univariate) variables within a system, perhaps conditioned on other variables. However, interactions do not necessarily take place between single variables, but may occur among groups, or "ensembles", of variables. In this study we establish a principled framework for Granger causality in the context of causal interactions among two or more multivariate sets of variables. Building on Geweke's seminal 1982 work, we offer new justifications for one particular form of multivariate Granger causality based on the generalized variances of residual errors. Taken together, our results support a comprehensive and theoretically consistent extension of Granger causality to the multivariate case. Treated individually, they highlight several specific advantages of the generalized variance measure, which we illustrate using applications in neuroscience as an example. We further show how the measure can be used to define "partial" Granger causality in the multivariate context and we also motivate reformulations of "causal density" and "Granger autonomy". Our results are directly applicable to experimental data and promise to reveal new types of functional relations in complex systems, neural and otherwise.
description: added 1 reference, minor change to discussion, typos corrected; 28 pages, 3 figures, 1 table, LaTeX
title: Effect of Poultry Litter Biochar on Saccharomyces cerevisiae Growth and Ethanol Production from Steam-Exploded Poplar and Corn Stover
Creators: name: Diallo, Oumou
Publisher: name: Utah State University
Year: 2014

description: The use of ethanol produced from lignocellulosic biomass for transportation fuel offers solutions in reducing environmental emission and the use of non-renewable fuels. However, lignocellulosic ethanol production is still hampered by economic and technical obstacles. For instance, the inhibitory effect of toxic compounds produced during biomass pretreatment was reported to inhibit the fermenting microorganisms, hence there was a decrease in ethanol yield and productivity. Thus, there is a need to improve the bioconversion of lignocellulosic biomass to ethanol in order to promote its commercialization. The research reported here investigated the use of poultry litter biochar to improve the ethanol production from steam-exploded poplar and corn stover. The effect of poultry litter biochar was first studied on Saccharomyces cerevisiae ATCC 204508/S288C growth, and second on the enzyme hydrolysis and fermentation of two steam-exploded biomasses: (poplar and corn stover). The third part of the study investigated optimal process parameters (biochar loading, biomass loading, and enzyme loading) on the reducing sugars production, and ethanol yield from steam-exploded corn stover. In this study, it has been shown that poultry litter biochar improved the S. cerevisiae growth and ethanol productivity; therefore poultry litter biochar could potentially be used to improve the ethanol production from steam-exploded lignocellulosic biomass.
Additional file 8 of LncRNA regulates tomato fruit cracking by coordinating gene expression via a hormone-redox-cell wall network
Creators: name: Xue, Lingzi
name: Sun, Mintao
name: Wu, Zhen
name: Yu, Lu
name: Yu, Qinghui
name: Tang, Yaping
name: Jiang, Fangling
Publisher: name: figshare
Year: 2020
Subjects: subject: Genetics
subject: FOS: Biological sciences
subject: Plant Biology

description: Additional file 8: Figure S2. The comparison of the relative expression measured by qRT-PCR and RNA-seq.
Barcode and voice recognition techniques for data entry into computerized dairy database records
Creators: name: Eilts, Bruce E.
name: Paccamonti, Dale L.
name: Holmes, Robert A.
Publisher: name: American Association of Bovine Practitioners  Proceedings of the Annual Conference
Year: 1995

description: Even though computers operate at amazing speeds, data input into programs remains the rate-limiting step preventing many dairymen and veterinarians from adopting a computerized system. Keyboard entry of individual animal events into a computer program is extremely tedious, but present barcode and voice recognition technologies exist to ease this cumbersome task.
description: American Association of Bovine Practitioners Proceedings of the Annual Conference, 1995
Dietary Cation Anion Balance (DCAB)
Creators: name: Henry, Edward T.
Publisher: name: American Association of Bovine Practitioners  Proceedings of the Annual Conference
Year: 1995

description: The benefits of a balanced closeup ration and supplementation with anionic minerals are: (1) a marked reduction in both clinical milk fever cases and subclinical hypocalcemia; (2) an increase of 700 to 1,000 pounds more milk in that lactation; (3) reduced reproductive problems resulting in a decrease in average days open and lower services per conception; and ( 4) reduced incidence of ketosis and displaced abomasums.
description: American Association of Bovine Practitioners Proceedings of the Annual Conference, 1995
title: Biological and Mechanical Approaches to Sunscald Management in Bell Pepper Production
Creators: name: Day, Samuel D.
Publisher: name: Utah State University
Year: 2010

description: Producing red bell peppers in high temperature and light environments can be challenging because many new semi-indeterminate varieties produce small plant canopies that leave fruit exposed to damage (sunscald) caused by solar radiation. Pepper production in Utah coincides with high air temperatures and solar radiation levels during July, August, and September. Increasing plant canopy size is one way to protect fruit from solar radiation. Low tunnels optimize plant growth by increasing air and soil temperatures. Growing plants under low tunnels early in the season could increase fruit shading later in the season. Another way to protect fruit is by using mechanical shade. Hanging shade cloth over a crop has been shown to decrease air temperatures and solar radiation levels reaching fruit. While the common production practice is to horizontally orient shade cloth, vertically orienting shade cloth may also be effective by providing shade to the crop in the morning and evening.
These protection methods were evaluated in Layton, Utah for effectiveness of increasing yield by decreasing sunscald occurrence. While plants grown under low tunnels for two weeks after transplanting had larger canopies, they did not increase yield or decrease sunscald compared to plants not grown under low tunnels. Vertical shade increased yield and decreased sunscald most effectively when combined with plants grown under low tunnels. Vertical shade protected exposed fruit when the sun was at lower elevations while increased canopy shade protected fruit when the sun was at high solar elevations. Horizontal shade completely eliminated sunscald and produced the largest yields of high quality fruit. The additional costs associated with using supplemental shade were offset by increased yields and higher value of larger fruit.
Separate studies were carried out to determine how sunlight and wind influence the temperature of pepper fruit. Sunlight exceeding 550 W·m-2 increased pepper fruit surface temperature (FST) to damaging levels. Wind decreased pepper FST but moderate wind speeds (3.0 m·s-1) did not decrease it below damaging levels. To insure protection, growers should apply supplemental shade when solar radiation levels exceed 550 W·m-2. These results provide improved guidelines for growers interested in using supplemental shade to provide pepper fruit for local and national consumption. Additionally, pepper growers in high air temperature and light environments can increase productivity and profitability with the use of supplemental shade.
High-brightness broad-area diode lasers with enhanced self-aligned lateral structure
Creators: name: Elatta, M.
name: Brox, O.
name: Della Casa, P.
name: Maaßdorf, A.
name: Martin, D.
name: Wenzel, H.
name: Knigge, A.
name: Crump, P.
Publisher: name: Bristol : IOP Publ.
Year: 2020
Subjects: subject: beam quality
subject: brightness
subject: broad-area diode laser
subject: current block
subject: current confinement
subject: self-aligned structure
subject: two-step epitaxial growth
subject: 530

description: Broad-area diode lasers with increased brightness and efficiency are presented, which are fabricated using an enhanced self-aligned lateral structure by means of a two-step epitaxial growth process with an intermediate etching step. In this structure, current-blocking layers in the device edges ensure current confinement under the central stripe, which can limit the detrimental effects of current spreading and lateral carrier accumulation on beam quality. It also minimizes losses at stripe edges, thus lowering the lasing threshold and increasing conversion efficiency, while maintaining high polarization purity. In the first realization of this structure, the current block is integrated within an extreme-triple-asymmetric epitaxial design with a thin p-doped side, meaning that the distance between the current block and the active zone can be minimized without added process complexity. Using this configuration, enhanced self-aligned structure devices with 90 µm stripe width and 4 mm resonator length show up to 20% lower threshold current, 21% narrower beam waist, and slightly higher (1.03 ) peak efficiency in comparison to reference devices with the same dimensions, while slope, divergence angle and polarization purity remain almost unchanged. These results correspond to an increase in brightness by up to 25%, and measurement results of devices with varying stripe widths follow the same trend. © 2020 The Author(s). Published by IOP Publishing Ltd.
The Interactive Video Network
Creators: name: Carmel, D. K.
Publisher: name: American Association of Bovine Practitioners  Proceedings of the Annual Conference
Year: 1995

description: Continuing education programs for veterinarians must overcome many obstacles to succeed. These obstacles include program accessibility concerns (e.g., time away from practice, travel distance and cost of attending), and program caliber issues (e.g., relevancy, utility, and quality of the information presented). The Interactive Video Network (IVN) in Maryland provides a means for delivering continuing education programs that breaks through program accessibility barriers.
description: American Association of Bovine Practitioners Proceedings of the Annual Conference, 1995
The Josephson light-emitting diode
Creators: name: Recher, Patrik
name: Nazarov, Yuli V.
name: Kouwenhoven, Leo P.
Publisher: name: arXiv
Year: 2009
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Superconductivity (cond-mat.supr-con)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We consider an optical quantum dot where an electron level and a hole level are coupled to respective superconducting leads. We find that electrons and holes recombine producing photons at discrete energies as well as a continuous tail. Further, the spectral lines directly probe the induced superconducting correlations on the dot. At energies close to the applied bias voltage eV, a parameter range exists, where radiation proceeds in pairwise emission of polarization correlated photons. At energies close to 2eV, emitted photons are associated with Cooper pair transfer and are reminiscent of Josephson radiation. We discuss how to probe the coherence of these photons in a SQUID geometry via single photon interference.
description: Main text: 4 pages, 4 figures, Supplementary material: 8 pages, 4 figures
title: Laboratory Modeling of Erosion Potential in Dam Foundations Due to Foundation Voids
Creators: name: Coy, Tyler K.
Publisher: name: Utah State University
Year: 2014

description: Earthen dams and levees create high gradients and increased hydraulic pressures in the underlying soil, which can lead to erosion and other challenges. Karst formations and other defects such as cracks in the foundation and/or abutments can lead to failure mechanisms such as internal erosion. Generally these voids or cracks are filled with soil, but due to the increased pressures and gradients that dams and levees create, the original soil is pushed out, thus creating a void that acts as a conduit for more soil to follow. Different soils will erode at different rates and some even create a natural filter, preventing further erosion from occurring, but due to these increased gradients and the cyclic changes that can occur throughout the seasons these filters can be broken down, allowing for erosion to continue and potentially lead to complete failure of the structure unless certain reparatory measures are taken. In the lab we have simulated different conditions that exist in the field and the results of testing a variety of soils can be found in this paper.
Evaluation of Four Therapies of Papillomatous Digital Dermatitis in Dairy Cattle
Creators: name: Guterbock, W. M.
name: Borelli, C. L.
name: Read, D. H.
Publisher: name: American Association of Bovine Practitioners  Proceedings of the Annual Conference
Year: 1995

description: One hundred and forty-seven Holstein cows in three Central California dairy herds, housed in open corrals with shades, with active Papillomatous Digital Dermatitis (hairy footwart) lesions were randomly assigned to one of five treatment groups.
description: American Association of Bovine Practitioners Proceedings of the Annual Conference, 1995
title: Risk Perception in Online Communities
Creators: name: Couraud, Jason R.
Publisher: name: Utah State University
Year: 2014

description: Online communities have become a part of everyday life for many people. The members of the communities use them to keep in touch with family and friends, do business, look for jobs, play games, and more, both savory and unsavory. The ease of sharing personal information comes with the subsequent risk of having that information exposed publically or even stolen. The purpose of this study was to explore how much awareness of the risks affects a person’s decision to post personal information to an online community.
Chapter I introduces the concepts and issues that will be investigated by this paper. Chapter II is a review of the literature on risk. Chapter III explains the model that was developed and used determine the relationships between risk perception, attitude, fear, and information revelation. Chapter IV explains the methods used to gather the data and what data was gathered. Chapter V contains the analysis of the data collected. Chapter VI contains the conclusion drawn from the data, implications for the research, and directions for future research.
Stiffness matrix for twist bend buckling of narrow rectangular sections
Creators: name: Zavitz, Bryant Allan
Publisher: name: University of British Columbia
Year: 2011

description: The stiffness properties of a short narrow rectangular beam as modified by a primary bending moment and shear stress distribution in the major plane are presented. The beam is a segment taken from a longer member the "structure." A distribution of bending stress is assumed over the beam segment length and its effect on the stiffness properties in lateral bending and torsion obtained. The stiffness matrix is used to obtain the critical value of load for a number of well known examples of narrow rectangular beams and the results are shown to be in good agreement. The results of an energy solution, which produces a symmetrical matrix, are presented. Comparison with classical examples shows accurate results with the added benefit that the symmetrical matrix lends itself much more readily to more complicated problems.
A Field Study of Calves Persistently Infected with the Bovine Viral Diarrhea Virus, Type I and II, in a Pennsylvania Dairy Herd
Creators: name: Drake, T. R.
name: Castro, A. E.
name: Hattel, A. L.
name: Stoffregen, W.
name: Smith, A.
name: Crawford, W. H.
Publisher: name: American Association of Bovine Practitioners  Proceedings of the Annual Conference
Year: 1995

description: An outbreak of bovine viral diarrhea (BVD) virus. infection with severe clinical manifestations occurred in seven herds of cattle primarily in Northwest PA during the spring of 1994. The acute deaths and respiratory disease with high morbidity and mortality occurring in these herds were atypical of known BVD infections which usually occur as mucosal disease or abortions.
description: American Association of Bovine Practitioners Proceedings of the Annual Conference, 1995
Reproductive Differences in Cows Treated with rBST Compared to Cows Not Treated
Creators: name: Keeter, Andrew N.
name: Weaver, Leon D.
name: Farver, Thomas
Publisher: name: American Association of Bovine Practitioners  Proceedings of the Annual Conference
Year: 1995

description: Numerous studies have reported decreased reproductive performance associated with administration of recombinant bovine somatotropin (rBST) to lactating dairy cows. However, most reports have been based on observations from studies conducted with small sample sizes or from target animal safety studies not designed to detect reproductive changes. This study was designed as a prospective clinical trial to provide more accurate measurement of reproductive changes associated with rBST use per label directions. The objectives of this study were to determine the effects of rBST on the survivability of the conceptus conceived within 24 days prior to the initiation of rBST, as well as effects on heat detection, conception and pregnancy rates after initiation of rBST treatment.
description: American Association of Bovine Practitioners Proceedings of the Annual Conference, 1995
title: Teacher Professionalism: A Study of Professionalism for Religious Educators in the Seminary and Institutes Department of the Church Educational System
Creators: name: Cottle, Michael L.
Publisher: name: Utah State University
Year: 2014

description: This qualitative study investigated Seminary and Institute teachers’ perception of professionalism. To answer the question “What is the perception of seminary and institute teachers and leaders regarding professionalism,” a life history approach was used to explore what experiences and events shaped the participants’ view of professionalism in seminary and institutes. Findings indicated the following: (a) loyalty to the organization is a key attribute for professionalism; (b) positive associations with peers and administrators strengthen professionalism and foster a culture of unity; (c) observation and feedback are critical elements in developing professionally; (d) content mastery is a prerequisite for teachers seeking to be professional; (e) years’ experience practicing appropriate skills, attitudes, and behaviors deepens the professional attributes; and (f) experience in many different assignments builds confidence, efficacy, and trust in teachers.
Otitis Media in Dairy Calves
Creators: name: DeChant, G. M.
name: Donovan, G. A.
Publisher: name: American Association of Bovine Practitioners  Proceedings of the Annual Conference
Year: 1995

description: A large dairy herd in north-central Florida has observed otitis media in their pre-weaned heifer calves. The initial clinical sign of otitis media was facial paralysis, presenting as ear droop and epiphora. Affected calves sometimes developed ataxia and other severe neurologic signs indicating a progression of the infection to otitis interna and meningitis.
description: American Association of Bovine Practitioners Proceedings of the Annual Conference, 1995
Low resistance n-contact for UVC LEDs by a two-step plasma etching process
Creators: name: Cho, H.K.
name: Kang, J.H.
name: Sulmoni, L.
name: Kunkel, K.
name: Rass, J.
name: Susilo, N.
name: Wernicke, T.
name: Einfeldt, S.
name: Kneissl, M.
Publisher: name: Bristol : IOP Publ.
Year: 2020
Subjects: subject: high Almole fraction n-AlGaN
subject: light emitting diode
subject: low resistance n-contact
subject: ohmic contact
subject: operating voltage
subject: plasma etch
subject: 530

description: The impact of plasma etching on the formation of low-resistance n-contacts on the AlGaN:Si current spreading layer during the chip fabrication of ultraviolet light-emitting diodes (UV LEDs) emitting at 265 nm is investigated. A two-step plasma etching process with a first rapid etching using BCl3/Cl2 gas mixture and a second slow etching step using pure Cl2 gas has been developed. The etching sequence provides smooth mesa side-walls and an n-AlGaN surface with reduced surface damage. Ohmic n-contacts with a contact resistivity of 3.5 10-4 Ωcm2 are obtained on Si-doped Al0.65Ga0.35N layers and the operating voltages of the UVC LEDs were reduced by 2 V for a current of 20 mA. © 2020 The Author(s). Published by IOP Publishing Ltd.
Bulk Viscosity and Cavitation in Boost-Invariant Hydrodynamic Expansion
Creators: name: Rajagopal, Krishna
name: Tripuraneni, Nilesh
Publisher: name: arXiv
Year: 2009
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Theory (hep-th)
subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: We solve second order relativistic hydrodynamics equations for a boost-invariant 1+1-dimensional expanding fluid with an equation of state taken from lattice calculations of the thermodynamics of strongly coupled quark-gluon plasma. We investigate the dependence of the energy density as a function of proper time on the values of the shear viscosity, the bulk viscosity, and second order coefficients, confirming that large changes in the values of the latter have negligible effects. Varying the shear viscosity between zero and a few times s/(4 pi), with s the entropy density, has significant effects, as expected based on other studies. Introducing a nonzero bulk viscosity also has significant effects. In fact, if the bulk viscosity peaks near the crossover temperature Tc to the degree indicated by recent lattice calculations in QCD without quarks, it can make the fluid cavitate -- falling apart into droplets. It is interesting to see a hydrodynamic calculation predicting its own breakdown, via cavitation, at the temperatures where hadronization is thought to occur in ultrarelativistic heavy ion collisions.
description: 25 pages, 4 figures; 3 footnotes added in v2; 1 footnote amended in v3, which is the version published in JHEP
title: Oral Communication in Genre Theory and Software Development Workplaces
Creators: name: Cootey, Jason L.
Publisher: name: Utah State University
Year: 2014

description: My dissertation defines how software developers have abandoned traditional documentation practices for other kinds of media that work better in their workplace practices. Ultimately, even though other media like white boards, sticky notes, and “oral communication” are vastly different than traditional, written software documentation, they match the fast paced, decision-making situations of contemporary developer communities. I focus particularly on oral communication because it is the most unacceptable means to “document,” according to traditional standards. I use North American Genre Theory to describe those decision-making situations contemporary developers and note how the theory does not account for all the documentation I expect to find. Via several projects and interviews I confirm that oral communication is a new means of “documentation” and reconciles North American Genre Theory.
The Effect of Multiple Postpartum Prostaglandin Treatments on the Fertility of Dairy Cattle at Risk of Endometritis
Creators: name: Kristula, Michaela
name: Bartholomew, Richard
Publisher: name: American Association of Bovine Practitioners  Proceedings of the Annual Conference
Year: 1995

description: This report focuses on the use of multiple doses of Prostaglandin to enhance fertility in animals at risk for endometritis. Cows at risk for endometritis were defined as those with retained placentas, assisted calvings, twins, or grossly abnormal uterine discharges. Cows were randomly assigned to a treatment group consisting of 3 injections of Prostaglandin F 2a • (PGF2a) given at approximately weekly intervals (3-10 days (d), 10-17 d, 17-24 d) postpartum and a control group consisting of a single injection of PGF2a given at 17-24 d postpartum. There was no added benefit of 3 injections of PGF2a given at approximately weekly intervals (3-10 d, 10-17 d, 17-24 d) compared to a single injection of PGF2a given at 17-24 d postpartum.
description: American Association of Bovine Practitioners Proceedings of the Annual Conference, 1995
Molecular Dynamic Simulation Trajectories (Apo, KD-C1, KD-C2, KD-L1, KD-L2, KD-L3)
Creators: name: Mosoh, Dexter Achu
Publisher: name: Zenodo
Year: 2024

description: This deposit contains the MD simulation trajectories dataset for the paper entitled "Widely-targeted In Silico and In Vitro Evaluation of Veratrum Alkaloid Analogs as FAK Inhibitors and Dual Targeting of FAK and Hh/SMO Pathways for Cancer Therapy: A Critical Analysis."
description: Instructions for assembling split files are included in the file list as a text document.
The Differential Rotation of FU Ori
Creators: name: Zhu, Zhaohuan
name: Espaillat, Catherine
name: Hinkle, Kenneth
name: Hernandez, Jesus
name: Hartmann, Lee
name: Calvet, Nuria
Publisher: name: arXiv
Year: 2009
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: The emission of FU Orionis objects in outburst has been identified as arising in rapidly accreting protoplanetary disks, based on a number of observational properties. A fundamental test of the accretion disk scenario is that the differentially rotating disk spectrum should produce a variation of rotational velocity with the wavelength of observation, as spectra taken at longer wavelengths probe outer, more slowly rotating disk regions. Previous observations of FU Ori have shown smaller rotation at near-infrared (~ 2.2 micron) wavelengths than observed at optical (~ 0.6 micron) wavelengths consistent with the assumption of Keplerian rotation. Here we report a spectrum from the Phoenix instrument on Gemini South which shows that differential (slower) rotation continues to be observed out to ~ 5 micron. The observed spectrum is well matched by the prediction of our accretion disk model previously constructed to match the observed spectral energy distribution and the differential rotation at wavelengths < 2.2 micron. This kinematic result allows us to confirm our previous inference of a large outer radius (~ 1 AU) for the rapidly accreting region of the FU Ori disk, which presents difficulties for outburst models relying purely on thermal instability. While some optical spectra have been interpreted to pose problems for the disk interpretation of FU Ori, we show that the adjustment of the maximum effective temperature of the disk model, proposed in a previous paper, greatly reduces these difficulties.
description: Accepted by ApJL
title: Online Media Use and Adoption by Hurricane Sandy Affected Fire and Police Departments
Creators: name: Chauhan, Apoorva
Publisher: name: Utah State University
Year: 2014

description: In this thesis work, I examine the use and adoption of online communication media by 840 fire and police departments that were affected by the 2012 Hurricane Sandy. I began by exploring how and why these fire and police departments used (or did not use) online media to communicate with the public during Hurricane Sandy. Results show that fire and police departments used online media during Hurricane Sandy to give timely and relevant information to the public about things such as evacuations, damages, weather, and cleanup and to engage in two-way communications with their constituents. In their messages, fire and police departments sought to make the information provided more credible by referencing, rebroadcasting, and recommending other authoritative entities. Though some departments saw online media as a useful and effective means of communication with members of the public, other departments found them difficult to use given the challenging circumstances of Hurricane Sandy such as flooding and power outages.
Next, I explore how a large-scale disaster event like Hurricane Sandy affects online media adoption by affected fire and police departments. I found an increase in online activity over Facebook, Twitter, and Nixle by the affected fire and police departments compared to before Hurricane Sandy. However, it is unclear whether this increase in online activity can be attributed to Hurricane Sandy or a natural increase over time.
Modelling and simulation of flame cutting for steel plates with solid phases and melting
Creators: name: Arenas, Manuel J.
name: Hömberg, Dietmar
name: Lasarzik, Robert
name: Mikkonen, Pertti
name: Petzold, Thomas
Publisher: name: Berlin ; Heidelberg : Springer
Year: 2020
Subjects: subject: Finite element method
subject: Flame cutting
subject: Heat equation
subject: Phase transitions
subject: Transport equation
subject: 510

description: The goal of this work is to describe in detail a quasi-stationary state model which can be used to deeply understand the distribution of the heat in a steel plate and the changes in the solid phases of the steel and into liquid phase during the flame cutting process. We use a 3D-model similar to previous works from Thiébaud (J. Mater. Process. Technol. 214(2):304–310, 2014) and expand it to consider phases changes, in particular, austenite formation and melting of material. Experimental data is used to validate the model and study its capabilities. Parameters defining the shape of the volumetric heat source and the power density are calibrated to achieve good agreement with temperature measurements. Similarities and differences with other models from literature are discussed. © 2020, The Author(s).
Comparison of Various Antibiotic Treatments in Cows Diagnosed with Toxic Puerperal Metritis
Creators: name: Smith, B. L.
name: Donovan, G. A.
name: Risco, C. A.
name: Elliot, J.
Publisher: name: American Association of Bovine Practitioners  Proceedings of the Annual Conference
Year: 1995

description: A field trial was conducted using Holstein cows to investigate the efficacy of various antibiotics in treating toxic puerperal metritis.
description: American Association of Bovine Practitioners Proceedings of the Annual Conference, 1995
title: Does the Way Exposure Exercises are Presented Matter? Comparing Fear Reduction Versus Fear Toleration Models
Creators: name: Bluett, Ellen J.
Publisher: name: Utah State University
Year: 2014

description: Exposure therapy is considered to be a first line treatment for a variety of anxiety disorders as supported by several review studies. However, there is no clear understanding of how it works. The present study examined how framing exposure exercises impacted outcomes in socially anxious individuals. We conducted a brief two-session exposure-based intervention, including experiential exercises from each therapeutic rationale, with homework assigned between sessions. We were specifically interested in the efficacy of four brief skills interventions: (a) fear reduction, (b) psychological flexibility, (c) values rationale, and (d) control for reducing public speaking anxiety from first to second exposure session. By combining participants at Utah State University and the University of Colorado Boulder, 81 individuals were randomized to participate in the study. Consistent with our prediction, individuals receiving an active intervention improved to a greater extent on major outcome measures of social anxiety compared to the control group. No significant differences were found between active interventions. Results showed no significant group differences in SUDs change at session 1 or session 2. Additionally, at session 1 those who received an active intervention displayed more within-session exposure engagement than individuals in the control condition. Importantly, there was no difference in between-session exposure engagement (number of exposures attempted) between groups. Overall, the results from this study suggest that there may not be one right way to implement exposure. Furthermore, there may be an overarching mechanism by which exposure works.
Temperature dependence of the dielectric permittivity of CaF2, BaF2 and Al2O3: application to the prediction of a temperature dependent van der Waals surface interaction exerted onto a neighbouring Cs (8P{3/2}) atom
Creators: name: De Silans, Thierry Passerat
name: Maurin, Isabelle
name: Segundo, Pedro Chaves De Souza
name: Saltiel, Solomon
name: Gorza, Marie-Pascale
name: Ducloy, Martial
name: Bloch, Daniel
name: Meneses, Domingo De Sousa
name: Echegut, Patrick
Publisher: name: arXiv
Year: 2009
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: Atomic Physics (physics.atom-ph)
subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: The temperature behaviour in the range 22\degree C to 500\degree C of the dielectric permittivity in the infrared range is investigated for CaF2, BaF2 and Al2O3 through reflectivity measurements. The dielectric permittivity is retrieved by fitting reflectivity spectra with a model taking into account multiphonon contributions. The results extrapolated from the measurements are applied to predict a temperature-dependent atom-surface van der Waals interaction. We specifically consider as the atom of interest Cs (8P3/2), the most relevant virtual couplings of which, fall in the range of thermal radiation and are located in the vicinity of the reststrahlen band of fluoride materials.
Family album : a photo-media investigation of the global family
Creators: name: Redmond, EJ
Publisher: name: University Of Tasmania
Year: 2023

description: This exegesis visually explores the changing identity of the dispersed family from post war Australia to the present. The investigation references my Dutch migrant family which has evolved into a multicultural family with links to India, Japan, Singapore and Australia. The project has culminated in four installations about different aspects of the global family that investigate three fundamental concepts: origins, belonging and hybridity. The notion of origins denotes parentage, kinfolk and cultural heritage resulting in a sense of belonging through having family and kinship. To evoke the themes of origins and belonging, I have used personal photographs and film footage from my family's archive to explore the idea of family photo media as a symbol of familial connectedness and as a medium for staying in touch. While the works depict private moments of a shared and mutual history, the archival imagery also generates, for the viewer, the potential for a re-engagement with Australian cultural history. The notion of hybridity relates to mixed origins and cross cultural relationships in a globalized world. Contemporary photographs of my family and their diverse surroundings are entwined to suggest both difference and sameness. The project's theoretical foundation is positioned by writers such as Roland Barthes, Annette Kuhn, Marianne Hirsch and Susan Sontag who offer a framework for photography's power to symbolically bind families. Other writers such as James Clifford, Homi Bhabha and Melissa Chui are pertinent for their discussion of identity in an inclusive globalised world. Charles Merewether and Hal Foster have been significant for their discourse on elegiac interpretations of the archive. The project's concern with the connectedness of the evolving dispersed family is informed by artists who make works centred on familial interaction inside a global framework, utilizing photography, archival or found film footage, family photographic albums, still and moving imagery. Elinor Carucci and Annelies Strba have been important for their ability to poetically and intimately describe family bonds. Mohindi Chandra and Fiona Tan have been influential for their works which deal with their own private cross cultural experiences. Within this context, the project has re-examined and re-imagined ideas around the shifting identity of the global family and has investigated strategies for conveying those ideas through the poetic referencing of a unique family archive and the melding of contemporary photographs of a modern dispersed family. In summary, my project aims to engender an intimate engagement with family in a transitional and transformative state. I have investigated this through the shift of my own family from its Dutch origins into a contemporary global family with traces of diverse cultures, past and present. Ultimately, my family's story conveys the universal story of the evolving global family whose efforts to stay connected is ongoing.
Evaluation of Morbidity and Mortality in Young Dairy Heifers After Vaccination with a Pasteurella haemolytica A 1 Leukotoxoid
Creators: name: Stevens, R. D.
name: Ellis, R. P.
name: Camden, D. A.
Publisher: name: American Association of Bovine Practitioners  Proceedings of the Annual Conference
Year: 1995

description: Respiratory disease is the most common problem in weaned dairy young stock and Pasteurella haemolytica biotype A, serotype 1 is the organism most frequently isolated from the lungs of calves affected with severe, fibrinopurulent bronchopneumonia.
description: American Association of Bovine Practitioners Proceedings of the Annual Conference, 1995
Steady state vibrations of framed structures
Creators: name: Maini, Rameshwar Kumar
Publisher: name: University of British Columbia
Year: 2011

description: This thesis is concerned with the determination of Internal Stress Resultants produced in different structural elements of framed structures due to harmonic disturbances. The analysis of frames under vibrating loads has so far been dealt with with physical lumping of the structural mass at the node points where the stiffness influence coefficients are defined. To improve the accuracy of the results, a consistent mass matrix approach is dealt with in few of the latest solutions giving higher degree of precision compared with the results of problems solved by lumped mass system. Keeping in mind the criteria of efficiency for solving any structural dynamic response problem, a stiffness matrix is generated which depends upon the distributed mass of the member and the frequency of vibrations of the impressed force. The stiffness influence coefficients are derived for a plane frame member of uniformly distributed mass from the general differential equation of motion under longitudinal and lateral vibrations. This concept is then extended to generate a stiffness matrix for a space frame member including torsional vibrations. The effects of rotary inertia and shear deformations being predominant for framed structures such as turbine foundations, are also included. The generated stiffness matrix is called the "Frequency and Mass Dependent Stiffness Matrix" (F.M.) which is used for the dynamic analysis of some structural problems and the results are compared with those of lumped mass and consistent mass matrix approaches. The F. M. Stiffness Matrix approach is then applied to the dynamic analysis of full size turbine foundations in comparison with other methods of solution. In this thesis major emphasis is stressed upon the dynamic analysis of turbine foundations.
title: Minimizing Aggregate Movements for Interval Coverage
Creators: name: Andrews, Aaron M.
Publisher: name: Utah State University
Year: 2014

description: We present an efficient algorithm for solving an interval coverage problem. Given n intervals of the same length on a line L and a line segment B on L, we want to move the intervals along L such that every point of B is covered by at least one interval and the sum of the moving distances of all intervals is minimized. As a fundamental computational geometry problem, it has applications in mobile sensor barrier coverage in wireless sensor networks. The previous work gave an O(n2) time algorithm for it. In this thesis, by discovering many interesting observations and developing new algorithmic techniques, we present an O(nlogn) time algorithm for this problem. We also show that Ω(n log n) is the lower bound for the time complexity. Therefore, our algorithm is optimal. Further, our observations and algorithmic techniques may be useful for solving other related problems.
title: Metabolic Modeling of Spider Silk Production in E. coli
Creators: name: Allred, Sarah
Publisher: name: Utah State University
Year: 2014

description: Spider silk has the potential to be a useful biomaterial due to its high tensile strength and elasticity. It is also biocompatible and biodegradable, making it useful for wound dressings and sutures, tissue and bone scaffolds, vessels for drug delivery, and ligament and tendon replacements. In some studies where spider silk has been used to grow cells, the silk has promoted more cell growth than the control. However, it is difficult to obtain the high volume of silk needed for these undertakings on a large scale. Spiders are territorial and cannibalistic, so they cannot be easily farmed. Therefore, spider silk proteins are frequently produced in other organisms. E. coli is often used for spider silk production due to the relative ease of gene manipulation and the cost effectiveness of large-scale fermentation. However, due to the large protein size of the spider silk and the repeating amino acid motifs, there are some challenges with production in E. coli.
Metabolic modeling is a way to model the metabolism of an organism and can help overcome some of the difficulties of spider silk production in E. coli by predicting metabolic engineering strategies. In this study, a metabolic modeling tool known as dynamic FBA predicted that ammonium is depleted during cell growth. Laboratory results confirmed that by adding additional ammonium to the medium, the E. coli cells experienced more cell growth and were able to produce more spider silk protein
Effectiveness of Calcium Propionate Gels
Creators: name: Sanchez, W. K.
name: Higgins, J. J.
name: Guy, M. A.
name: Anderson, M. L.
Publisher: name: American Association of Bovine Practitioners  Proceedings of the Annual Conference
Year: 1995

description: Oral calcium gels are used to elevate blood calcium of periparturient dairy cows. Calcium chloride is the most commonly used ingredient in these products. Although calcium chloride increases blood Ca, it may cause metabolic acidosis and thus is often contraindicated.
description: American Association of Bovine Practitioners Proceedings of the Annual Conference, 1995
title: Riparian Zone Protection: The Use of the Willingness-to-Accept Format in a Contingent Valuation Study
Creators: name: Broadhead, Catherine A.
Publisher: name: Utah State University
Year: 2000

description: The contingent valuation method (CVM) is used to evaluate the minimum compensation landowners require to forego production on farm riverbanks areas. The elicitation format used in the survey is a yes-no participation question followed by an open-ended question.
Chapter 2 presents the results of the survey. The Heckman approach is used in the econometric analysis to take care of the self-selection problem arising with this formatting of the questions. Chapter 3 is devoted to further examining the potential for undertaking valuation exercises using the willingness-to-accept format (WTA)
WTA estimates obtained with open-ended format are compared to WTA estimates obtained when respondents are placed in a "contingent first-price sealed-bird auction" setting. Results indicated that WTA values obtained in the two different settings were not statistically different. More generally, this chapter shows that the use of auctions can be successfully applied to the provision of public goods in the case of compensation demanded.