cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
AGN impact on the molecular gas in galactic centers as probed by CO lines
Creators: name: Esposito, Federico
name: Vallini, Livia
name: Pozzi, Francesca
name: Casasola, Viviana
name: Mingozzi, Matilde
name: Vignali, Cristian
name: Gruppioni, Carlotta
name: Salvestrini, Francesco
Publisher: name: arXiv
Year: 2022
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: We present a detailed analysis of the X-ray, infrared, and carbon monoxide (CO) emission for a sample of 35 local ($z \leq 0.15$), active ($L_X \geq 10^{42}$ erg s$^{-1}$) galaxies. Our goal is to infer the contribution of far-ultraviolet (FUV) radiation from star formation (SF), and X-ray radiation from the active galactic nuclei (AGN), respectively producing photodissociation regions (PDRs) and X-ray dominated regions (XDRs), to the molecular gas heating. To this aim, we exploit the CO spectral line energy distribution (CO SLED) as traced by Herschel, complemented with data from single-dish telescopes for the low-J lines, and high-resolution ALMA images of the mid-J CO emitting region. By comparing our results to the Schmidt-Kennicutt relation, we find no evidence for AGN influence on the cold and low-density gas on kpc-scales. On nuclear (r = 250 pc) scales, we find weak correlations between the CO line ratios and either the FUV or X-ray fluxes: this may indicate that neither SF nor AGN radiation dominates the gas excitation, at least at r = 250 pc. From a comparison of the CO line ratios with PDR and XDR models, we find that PDRs can reproduce observations only in presence of extremely high gas densities ($n > 10^5$ cm$^{-3}$). In the XDR case, instead, the models suggest moderate densities ($n \approx 10^{2-4}$ cm$^{-3}$). We conclude that a mix of the two mechanisms (PDR for the mid-J, XDR or possibly shocks for the high-J) is necessary to explain the observed CO excitation in active galaxies.
description: 25 pages, 19 figures, accepted for publication in MNRAS
Two Gatsbys
Creators: name: Halliday, Iain
Publisher: name: RSAJournal
Year: 1999

description: How we read, how we understand, has become one of the most pressing questions in literary studies today. We inhabit the hermeneutic age. Drawing on George Steiner's concept of "understanding as translation", this paper seeks to present interlingual translation as a paradigm for interpretation and understanding and deals specifically with two Italian translations of Fitzgerald's The Great Gatsby.
description: RSAJournal, Vol. 10 (1999): Untitled
Spatiotemporal amplitude-and-phase reconstruction by Fourier-transform of interference spectra of high-complex-beams
Creators: name: Alonso, Benjamin
name: Sola, Inigo J.
name: Varela, Oscar
name: Hernandez-Toro, Juan
name: Mendez, Cruz
name: Roman, Julio San
name: Zair, Amelle
name: Roso, Luis
Publisher: name: arXiv
Year: 2009
Subjects: subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: We propose a novel method to reconstruct the spatio-temporal amplitude and phase of the electric field of ultrashort laser pulses using spatially-resolved spectral interferometry. This method is based on a fiber-optic coupler interferometer that has certain advantages in comparison with standard interferometer systems, such as it being alignment-free and selection of the reference beam at a single point. Our technique, which we refer to as STARFISH, offers compactness and simplicity. We report its application to the experimental characterization of chirped pulses and to spatio-temporal reconstructions of a convergent beam as well as plane-plane and spherical-plane waves interferences, which we check with our simulations.
description: 9 pages, 7 figures
LCDM Satellites and HI Companions - The Arecibo ALFA Survey of NGC 2903
Creators: name: Irwin, J. A.
name: Hoffman, G. L.
name: Spekkens, K.
name: Haynes, M. P.
name: Giovanelli, R.
name: Linder, S. M.
name: Catinella, B.
name: Momjian, E.
name: Koribalski, B. S.
name: Davies, J.
name: Brinks, E.
name: de Blok, W. J. G.
name: Putman, M. E.
name: van Driel, W.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We have conducted a deep, complete HI survey, using Arecibo/ALFA, of a field centered on the nearby, isolated galaxy, NGC 2903, which is similar to the Milky Way in its properties. The field size was 150 kpc x 260 kpc and the final velocity range spanned from 100 to 1133 km/s. The ALFA beams have been mapped as a function of azimuth and cleaned from each azimuth-specific cube prior to forming final cubes. The final HI data are sensitive down to an HI mass of 2 x 10^5 Mo and column density of 2 x 10^{17} cm^{-2} at the 3sigma x 2deltaV level, where sigma is the rms noise level and deltaV is the velocity resolution. NGC 2903 is found to have an HI envelope that is larger than previously known, extending to at least 3 times the optical diameter of the galaxy. Our search for companions yields one new discovery with an HI mass of 2.6 x 10^6 Mo. The companion is 64 kpc from NGC 2903 in projection, is likely associated with a small optical galaxy of similar total stellar mass, and is dark matter dominated, with a total mass >10^8 Mo. In the region surveyed, there are now two known companions: our new discovery and a previously known system that is likely a dwarf spheroidal, lacking HI content. If HI constitutes 1% of the total mass in all possible companions, then we should have detected 230 companions, according to LCDM predictions. Consequently, if this number of dark matter clumps are indeed present, then they contain less than 1% HI content, possibly existing as very faint dwarf spheroidals or as starless, gasless dark matter clumps.
description: Accepted for publication in ApJ. 19 pages, 13 figures. For version with full-resolution figures, go to http://www.astro.queensu.ca/~irwin/ngc2903/ms_fullres.pdf
Consequences of Math Anxiety and Stereotype Threat: An Intersectional Perspective
Creators: name: John Buck, Jennifer E.
Publisher: name: University of Nevada, Las Vegas
Year: 2019

description:  Individuals with science, technology, engineering, and math (STEM) skills are highly valued for their contribution to the U.S. workforce and society. However, women and some people of color enter STEM fields at lesser rates than do White men. Math anxiety and stereotype threat have been found to cause math performance decrements for women and some people of color. Presently, it is not clear how math anxiety and stereotype threat might work together to dually influence math performance and subsequent STEM participation. The current study focuses on a diverse sample of 295 undergraduate students who were randomly assigned to one of two threat conditions prior to taking a math test. Participants also completed measures of implicit gender-math attitudes and math anxiety. Despite a failure to replicate prior research, contributions of the current study include a better understanding of how math anxiety presents in an ethnically diverse sample as well as how math anxiety and math task performance vary by demographic factors such as age, major, and first-generation status. Implications for future research regarding math anxiety and stereotype threat in diverse groups are discussed.
Fantasies and Fools
Creators: name: Rossi, Doc
Publisher: name: RSAJournal
Year: 1999

description: This essay attempts to explain how Fitzgerald uses forma I elements of allegory to cross the boundaries of the real and the fictive, thus taking readers into 'a third area' that opens out onto a larger, 'suggested world', where they are expected to look for meaning beyound the reality represented. Like Brecht, whose Verfremdungseffekt is intended to demonstrate that things are seldom what they seem, especially the most common-place, that they need to be observed in context to be understood and acted upon, Fitzgerald places reality within ironicizing quotation marks: elements from the world outside the text are selected for use within the text, combined and presented quite candidly as realist fiction in order to point the reader in the direction of that suggested world.
description: RSAJournal, Vol. 10 (1999): Untitled
An Introduction to the Exposition on Soundness, Completeness, and Decidability in Quantum Logic and Quantum Computation
Creators: name: Kachroo, Pushkin
Publisher: name: University of Nevada, Las Vegas
Year: 2019

description:  This thesis provides an introduction to the concepts of soundness and completeness in the context of quantum logic. As quantum logic is based on a lattice and not Boolean logic as is the case of classical logic, its meta analysis is very different. This thesis is devoted to studying the differences that this structure provides.
 In terms of quatum computation, the thesis provides an introduction to decidability as it is used in classical computation theory using Turing machines and then presents a comparison to quantum computation structure.
 The aim of the thesis is to present the existing basic structures of classical and quantum logic, as well as classical and quantum computation that will enable the development of the technical connections between the two in terms of specific models and finally to their relationship to classical and quantum complexity.
Alkali-Silica Reactivity of Mortars Containing Natural Pozzolan
Creators: name: Kian, Arash
Publisher: name: University of Nevada, Las Vegas
Year: 2019

description:  Alkali-silica reactivity is one of the most recognized deleterious phenomena in Portland cement concrete resulting in cracks, spalling, and other deleterious mechanisms.
 The aim of this study was (i) to assess the extent of reactivity of the aggregates, quarried from seven different sources, suspected of being conducive to ASR, and (ii) to compare the effectiveness of industrial (Class F fly ash) and natural pozzolans in mitigation of alkali-silica reactivity of the studied aggregates. To this end, seven aggregate sources, four natural pozzolan sources, and one source of Class F fly ash were used. ASTM Type V Portland cement was replaced at four levels of 15, 20, 25, and 30% by different pozzolan types and sources. A uniform water-to-cementitious materials ratio of 0.47 was used. Beam shaped mortars were tested for ASR-induced expansion for eight weeks. In addition, companion mortar cubes cured for 90 days in a salt-water environment and in a controlled moisture room were tested in compression.
 The findings of this investigation revealed that the ASR mitigation of the studied aggregate depended on the aggregate source, natural pozzolan source and content, and immersion age. For nearly all natural and industrial pozzolans used in this study, 15% by weight of Portland cement was sufficient to mitigate alkali-silica reactivity of the studied reactive aggregates. The loss in strength of the studied mortars also depended on aggregate and natural pozzolan types and sources, and reduced with increases in Portland cement substitution level. Overall, the four natural pozzolan sources exhibited similar to better performance, in comparison to that of the class F Fly ash, in suppressing the alkali-silica reactivity of the reactive aggregates.
Additional file 7 of Global investigation of estrogen-responsive genes regulating lipid metabolism in the liver of laying hens
Creators: name: Ren, Junxiao
name: Tian, Weihua
name: Jiang, Keren
name: Wang, Zhang
name: Wang, Dandan
name: Li, Zhuanjian
name: Yan, Fengbin
name: Wang, Yanbin
name: Tian, Yadong
name: Ou, Kepeng
name: Wang, Hongjun
name: Kang, Xiangtao
name: Li, Hong
name: Liu, Xiaojun
Publisher: name: figshare
Year: 2021
Subjects: subject: Genetics
subject: FOS: Biological sciences

description: Additional file 7: Table S7. ChIP-qPCR primers.
Quantum 2-Body Hamiltonian for Topological Color Codes
Creators: name: Bombin, H.
name: Kargarian, M.
name: Martin-Delgado, M. A.
Publisher: name: arXiv
Year: 2009
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We introduce a two-body quantum Hamiltonian model with spins-$\half$ located on the vertices of a 2D spatial lattice. The model exhibits an exact topological degeneracy in all coupling regimes. This is a remarkable non-perturbative effect. The model has a $\Z_2\times \Z_2$ gauge group symmetry and string-net integrals of motion. There exists a gapped phase in which the low-energy sector reproduces an effective topological color code model. High energy excitations fall into three families of anyonic fermions that turn out to be strongly interacting. All these, and more, are new features not present in honeycomb lattice models like Kitaev model.
description: Cotribution to the Proceedings of the Scala Conference 2009 (Cortina, Italy). Special Issue dedicated to Prof. Prof. Tombesi, on occasion of his seventieth birthday. Editors: D. Vitali, I Marzoli, S. Mancini, G. Di Giuseppe. "Fortschritte der Physik"
The Illusion of Myth
Creators: name: Bottalico, Michele
Publisher: name: RSAJournal
Year: 1999

description: The title that Matthew Bruccoli considers more appropriate to Fitzgerald's novel in progress suggests that the primordial myth of Eros and the modern myth of Hollywood, illusory and deceptive yet harbingers of renewed vitality, are intertwined in Fitzgerald's text. In the wake of Roland Barthes' analysis of modern mythology, this essay explores the polysemic fertility of the Hollywood myth and narrative strategies used by Fitzgerald to present it.
description: RSAJournal, Vol. 10 (1999): Untitled
A First Order $q$-Difference System for the $BC_1$-Type Jackson Integral and Its Applications
Creators: name: Ito, Masahiko
Publisher: name: arXiv
Year: 2009
Subjects: subject: Classical Analysis and ODEs (math.CA)
subject: FOS: Mathematics

description: We present an explicit expression for the $q$-difference system, which the $BC_1$-type Jackson integral ($q$-series) satisfies, as first order simultaneous $q$-difference equations with a concrete basis. As an application, we give a simple proof for the hypergeometric summation formula introduced by Gustafson and the product formula of the $q$-integral introduced by Nassrallah-Rahman and Gustafson.
title: Cheese Flavor Development in Ultrafiltered Whole Milk Concentrates
Creators: name: Hwang, David Long-Ying
Publisher: name: Utah State University
Year: 1979

description: The development of cheese flavor in ultrafiltered whole milk retentates was investigated. Acidified (pH 5.7) pasteurized whole milk was concentrated to 21% fat, 17% protein and 41% total solids, and then divided into six lots. Each lot was subdivided into three groups of two samples each. Each group was inoculated with one of three lactic cultures -- Streptococcus lactis C6 , commercial mixed concentrated Marschall's MD294S or CCI299S. One sample in each group was treated with rennet and the other sample left rennet free. All samples were incubated at 30 C until the pH reached 5.2-5.1. Each of the fermented retentates was further divided into 12 samples. Six of them were incubated at 22 C and the other six at 30 C. After two weeks incubation, the samples were evaluated for flavor quality, body quality and flavor intensity. A similar analysis was conducted after two weeks for a total incubation period of four weeks.
The effects of culture, rennet and incubation temperature on product quality were determined. Rennet and temperature were the only factors with significant impact on flavor intensity or body and flavor quality. No significant effects were attributed to the lactic cultures, although bitterness was more frequently found in retentates fermented with culture C6.
Samples containing rennet and ripened at 30 C developed the highest levels of soluble nitrogen (23-25% of total nitrogen) but had the poorest flavor intensity, flavor quality and body quality. Samples without rennet and ripened at 22 Chad the lowest levels of soluble nitrogen (13-18% of total nitrogen), and the most satisfactory organoleptic scores.
F. Scott Fitzgerald and Rome
Creators: name: Ricciardi, Caterina
Publisher: name: RSAJournal
Year: 1999

description: "F. Scott Fitzgerald and Rome" focuses on Fitzgerald's view of Rome where, with Zelda, he spent a few weeks in 1921 and the whole winter of 1924–1925. As two little known sketches - "Three Cities" (1921) and "The High Cost of Macaroni" (1954) - show, that experience proved to be quite disappointing. In particular, Fitzgerald profoundly disliked the vulgar atmosphere of Fascist Rome. Thus, the dream of the eternal city - which he uses somewhat ironically in This Side of Paradise and in The Beautiful and Damned - was to reveal its tragic flaws in Tender Is the Night, where Rome plays a fatal role very much in the tradition of Hawthorne and James.
description: RSAJournal, Vol. 10 (1999): Untitled
Star Formation Triggered by the expanding bubble S111
Creators: name: Mookerjea, Bhaswati
Publisher: name: arXiv
Year: 2022
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: This paper investigates the impact of radiative and mechanical feedback from O-type stars on their parent molecular clouds and the triggering of formation of future generation of stars. We study the infrared bubble S111 created by the embedded massive stellar cluster G316.80-0.05. A significant fraction of gas in shells created due to the compression of the ambient medium by expanding bubbles is photodissociated by the stellar radiation. The kinematics of the shells are thus best studied using spectroscopic observations of singly ionized carbon, the most dominant species. We have used the velocity-resolved maps of the $^2{\rm P}_{3/2}\rightarrow ^2{\rm P}_{1/2}$ transition of [C II] at 158 micron, the J=2-1 transition of 13CO and C18O, and the J=1-0 transition of HCO^+ to study the rim of the bubble S111 that partly coincides with the southern part of the infrared dark ridge G316.75. The [C II] spectra conclusively show evidence of a shell expanding with a moderate velocity of ~7 km/s, which amounts to a kinetic energy that is ~0.5-40 times the thermal energy of the H II region. The pressure causing the expansion of the H II region arises mainly from the hydrogen ionization and the dust-processed radiation. Among the far-infrared sources located in the compressed shells, we find the core G316.7799-0.0942 to show broad spectral features consistent with outflow activity and conclude that it is a site of active star formation. Based on the age of the H II region we conclude that this expanding H II region is responsible for the triggering of the current star formation activity in the region.
description: Accepted for publication in the Astrophysical Journal on 30 November 2021
title: Incorporating the Index of Nutritional Quality in the Nutrition Education of WIC Recipients
Creators: name: Roth, Mary J.
Publisher: name: Utah State University
Year: 1979

description: The purpose of this study was to develop and evaluate nutrition educational lessons and instructional materials based on the Index of Nutritional Quality (INQ). INQ is a graphic, nutrient density concept. The lessons and instructional materials were used in the nutrition education of pregnant women in the WIC Program. Six nutrition lessons were written utilizing the INQ concept. Lesson one emphasized the importance of the WIC supplemental foods and the recommended number of servings from the basic four food groups during pregnancy. Lessons two through six concerned the importance of the following nutrients during pregnancy: calcium, protein, iron, vitamin A and vitamin C. Six pamphlets were also designed to be used with each corresponding lesson. The pamphlets were composed of pictures and INQ bar charts simply written to convey ideas taught in each lesson.
Nutrition counseling sessions were conducted for two groups of pregnant WIC recipients. The women in group one attended two individual nutritional counseling sessions while those in group two attended two group nutrition sessions. A questionnaire (including a twenty-four hour recall) and nutrition quiz were given to each client at sessions one and two. The twenty-four hour recalls measured quality of the participants diets prior to and following a nutrition counseling session based on the INQ concept. Nutrition quizzes tested nutrition knowledge of concepts illustrated by INQ graphs before and following two nutrition counseling sessions.
Data obtained were analyzed to test for statistical significance. Paired t-tests indicated that mean totals for percent of standard (RDA's for pregnant women) for five nutrients analyzed in the recalls were significantly greater at recall two. Mean INQ total scores for the five nutrients were considered adequate at recall one. These scores did not improve from recall one to recall two. There was no difference between groups one and two for any of these results as determined by analysis of variance. There was also a significant increase in the percent of standard (RDA) and INQ value in recall two for the individual nutrient taught at session one. Paired t-tests revealed that there were significant improvements in total quiz scores from pre-test to post-test. Again, there was no difference between groups one and two as determined by analysis of variance.
In conclusion, a nutrition education program based on the INQ concept was effective in improving the percentages of the RDA met in a dietary recall for five nutrients as well as nutrition knowledge of two groups of pregnant WIC recipients. The designed education program provides a graphic, easy-to-understand, and individualized approach. This is one solution to the need for new and effective WIC nutrition education methods.
Variable argument marking and the difference between general and particular linguistics (Handout)
Creators: name: Haspelmath, Martin
Publisher: name: Zenodo
Year: 2021

description: ABSTRACT: In this presentation, I will discuss a range of variable argument marking patterns, such as inverse marking in Ojibwe (Rhodes 1994), variable dative marking in Wolof (Becher 2005), person-based split ergativity in Nez Perce (Deal 2016), variable accusative case marking in Moro (Jenks & Sande 2017), among others. In a recent paper (Haspelmath 2021a), I have proposed that many argument-marking splits fall under the following high-level generalization: The role-reference association universal: Deviations from usual associations of role rank and referential prominence tend to be coded by longer grammatical forms if the coding is asymmetric. We will see how many of the well-known patterns of variable argument marking are instances of this, and I will summarize the explanation that I propose, in terms of the efficiency theory of asymmetric coding (Haspelmath 2021b). One of the earliest general statements of (a version of) this explanation is found in Hawkinson & Hyman (1974). In a second step, I will highlight the importance of the distinction between g-theories and p-theories (general theories of Human Language and of particular languages, respectively), which has often been neglected (Haspelmath 2021c). I will argue that if we make this distinction, we will gain a much better understanding of some of the persistent disparities between different methodological orientations in the field of general grammar. My claims are restricted to g-theories, and I make no p-theoretical claims, so there may be less tension between my proposals and those of others than might appear initially.
title: The Effects of Dietary Calcium and/or Iron Deficiency upon Murine Intestinal Calcium Binding Protein Activity and Calcium Absorption
Creators: name: McDonald, Catherine M.
Publisher: name: Utah State University
Year: 1980

description: Iron deficiency has been shown to impair calcium absorption, leading to decreased bone mass. Vitamin D3-dependent calcium binding protein (CaBP) has been demonstrated to be necessary for the active transport of calcium in the intestine of numerous species. Iron deficiency might affect the activity of the calcium binding protein.
Four experimental diets were formulated as follows: Diet 1, iron adequate, calcium adequate; Diet 2, iron deficient, calcium adequate; Diet 3, iron adequate, calcium deficient; Diet 4, iron deficient, calcium deficient. Weanling, female rats were separated into 4 groups of 48 animals each and fed the respective diet for a period of 66 or 67 days.
Results of a 10-day metabolic study indicate that animals fed either the iron adequate, calcium deficient or iron deficient, calcium deficient diets adapted to the calcium deficiency in a comparable manner. The percent apparent calcium absorption in the animals fed the iron adequate, calcium deficient or iron deficient, calcium deficient diets was more than double (p < 0.01) the percent apparent calcium absorption of the animals fed the iron adequate, calcium adequate or iron deficient, calcium adequate diets.
A general comparison theorem for 1-dimensional anticipated BSDEs
Creators: name: Xu, Xiaoming
Publisher: name: arXiv
Year: 2009
Subjects: subject: Probability (math.PR)
subject: FOS: Mathematics
subject: 60H05, 60H10

description: Anticipated backward stochastic differential equation (ABSDE) studied the first time in 2007 is a new type of stochastic differential equations. In this paper, we establish a general comparison theorem for 1-dimensional ABSDEs with the generators depending on the anticipated term of $Z$.
description: 8 pages
1898: History and Memory
Creators: name: Romero, Federico
Publisher: name: RSAJournal
Year: 1999

description: It is almost a truism that the war of 1898 was a turning point in American history. But where did it turn to? The essay explores the major historical interpretations and stresses the transitional character of the event, which foreshadows only a few of the future features of US international relations, while at the same time retaining conspicuous elements of the past. It is then argued that this unresolved ambiguity features very prominently in present day memories and remembrances - here analyzed via the centennial's production of websites as well as printed matters. Current views of 1898 symptomatically emphasize its multiracial and gendered aspects, but turn a blind eye to the shifting nexus of power inherent in the war's origins and results. History's ambiguities are thus replicated and magnified in memory.
description: RSAJournal, Vol. 10 (1999): Untitled
title: A Growth Study on Children/Adolescents with Insulin Dependent Diabetes Mellitus
Creators: name: Schvaneveldt, Noreen Brown
Publisher: name: Utah State University
Year: 1980

description: The purpose of this study was to investigate the growth of children/adolescents ages 8 through 15 with insulin dependent diabetes mellitus attending Camp UTADA in 1977 and/or 1978 and/or 1979. Measurements included were height, weight, triceps skinfold, mid-arm circumference and mid-arm muscle circumference. Measurements were compared with those of a nor~al, nondiabetic population. Total glycosylated hemoglobin (HbAl), duration of the disease and age at onset of the disease were also investigated for an effect on growth.
The majority of the male subjects were less than the 50th percentile for height and weight. Females were equally distributed above and below the 50th percentile for height and weight. Height and weight within sex and age groups were generally similar to normal data with few exceptions. Arm anthropometry of male and female groups beyond ages 11 and 12 respectively, generally had reduced mid-arm circumferences and/or reduced mid-arm muscle circumference. Triceps skinfold measurements generally were similar to that of normal skinfolds. Male groups ages 14 and 15 were significantly shorter, lighter and had a lower mid-arm muscle circumference than normal values.
Analysis of variance (ANOVA) established a negative association between duration of diabetes mellitus and height percentile. Age at onset of diabetes mellitus was also determined to have a positive effect on height.
It was concluded that while heights can be expected to be within the normal range, a mild retardation in height may occur if diabetes mellitus is diagnosed before puberty and that males with a prepubertal diagnosis will likely experience a delayed growth spurt.
One-sided composite cavity on an optical nanofiber for cavity QED
Creators: name: Yalla, Ramachandrarao
name: Shafi, K. Muhammed
name: Nayak, Kali P.
name: Hakuta, Kohzo
Publisher: name: arXiv
Year: 2022
Subjects: subject: Quantum Physics (quant-ph)
subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: We demonstrate a one-sided cavity on an optical nanofiber (ONF) using a composite method. The one-sided composite cavity is created by mounting an asymmetric defect mode grating on an ONF. We design the one-sided composite cavity on an ONF to enhance channeling efficiency into one side of ONF while operating from under- to critical- and over-coupling regimes using numerical simulations. Experimentally, we demonstrate coupling characteristics of the one-sided composite cavity, showing good correspondence with simulation results.
description: 6 pages, 4 figures
Zero field level crossing in molecular hydrogen
Creators: name: Van Der Linde, Jacob
Publisher: name: University of British Columbia
Year: 2011

description: The lifetimes of the 3d¹Σ(v=0) J = l, 2 and 3 states have been measured using zero-field level crossing techniques. The transitions observed were the R-branch members of the 3d¹Σ ↦ 2p¹Σ transition. The upper state is excited in a discharge between two capacitor plates to which a radio-frequency voltage is applied. The measurements were made using first a 180 MHz R.F. source and later using a 450 MHz source. Polarization of emitted light was measured by rotating a polaroid in the beam and phase sensitive detecting the resulting modulation. The depolarization curves obtained by plotting the magnetic field strength against the polarization of the R(0), R(l), R(2) lines yield halfwidths, when extrapolated to zero pressure, of 2.37±.12 gauss, 2.60±.15 gauss and 3.25±.25 gauss. The halfwidths vary linearly with pressure in the discharge cell yielding collision cross-sections of roughly 1.5x10⁻¹⁴ cm². Using the high field Landé g values of these states, their lifetimes are (2.66±.12)x10⁻⁸sec., (3.83±.2)x10⁻⁸sec., and (3.93±.25)x10⁻⁸sec. for J=l, 2 and 3 respectively. The discrepancy between the first and the latter two lifetimes is discussed.
Utility of Bench Scale Sand Tank Experiments at Assessing Permeable Reactive Barrier Design
Creators: name: Meier, Brandon
Publisher: name: University of Nevada, Las Vegas
Year: 2019

description:  The objective of this work was to evaluate the utility of bench scale sand tank experiments at assessing permeable reactive barrier (PRB) design. Our criteria for meeting this goal was that differences between PRB designs could be identified solely by measuring concentration in outflow from the sand tank models. For our PRB designs (funnel-and-gate, staggered wells, and parallel bars), numerical simulations clearly showed that PRB design had a quantifiable effect on outflow concentration, provided that the solute reacted with the PRB materials. Conversely, use of a conservative (non-reactive) solute did not allow us to discern between PRB design alternatives. Employing the data collected from the numerical simulations can refine the design of the reactive barriers prior to physical sand tank experiments. Utilization of numerically simulated reactive barriers could be a way to predict and validate the use of a physical, bench-scale sand tank models.
(medium-modified) Fragmentation Functions
Creators: name: Arleo, Francois
Publisher: name: arXiv
Year: 2008
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Experiment (hep-ex)
subject: Nuclear Experiment (nucl-ex)
subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: In this short review paper, we discuss some of the recent advances in the field of parton fragmentation processes into hadrons as well as their possible modifications in QCD media. Hadron production data in e+e-, deep inelastic scattering and hadronic collisions are presented, together with global analyses of fragmentation functions into light and heavy hadrons and developments on parton fragmentation in perturbative QCD at small momentum fraction. Motivated by the recent RHIC data indicating a significant suppression of large-pT hadron production in heavy-ion collisions, several recent attempts to model medium-modified fragmentation, e.g. by solving "medium" evolution equations or through Monte Carlo studies, have been proposed and are discussed in detail. Finally we mention the possibility to extract medium-modified fragmentation functions using photon-hadron correlations.
description: 35 pages, 14 figures, 2 tables. Invited plenary talk at "Hard Probes 2008", Illa da Toxa (Spain), 8-14 June 2008, submitted to a special issue of Eur. Phys. J. C
Asymptotic structure of topologically massive gravity in spacelike stretched AdS sector
Creators: name: Blagojević, M.
name: Cvetković, B.
Publisher: name: arXiv
Year: 2009
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We introduce a natural set of asymptotic conditions in the spacelike stretched AdS sector of topologically massive gravity. The Poisson bracket algebra of the canonical generators is shown to have the form of the semi-direct sum of a $u(1)$ Kac-Moody and a Virasoro algebra, with central charges. Using the Sugawara construction, we prove that the asymptotic symmetry coincides with the conformal symmetry, described by two independent Virasoro algebras with central charges. The result is in complete agreement with the hypothesis made in [6].
description: LATEX, 19 pages; v2: minor errors corrected, one reference added
Strong Constraints to the Putative Planet Candidate around VB 10 using Doppler spectroscopy
Creators: name: Anglada-Escude, Guillem
name: Shkolnik, Evgenya L.
name: Weinberger, Alycia J.
name: Thompson, Ian B.
name: Osip, David J.
name: Debes, John H.
Publisher: name: arXiv
Year: 2010
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: FOS: Physical sciences

description: We present new radial velocity measurements of the ultra-cool dwarf VB 10, which was recently announced to host a giant planet detected with astrometry. The new observations were obtained using optical spectrographs(MIKE/Magellan and ESPaDOnS/CHFT) and cover a 63% of the reported period of 270 days. We apply Least-squares periodograms to identify the most significant signals and evaluate their corresponding False Alarm Probabilities. We show that this method is the proper generalization to astrometric data because (1) it mitigates the coupling of the orbital parameters with the parallax and proper motion, and (2) it permits a direct generalization to include non-linear Keplerian parameters in a combined fit to astrometry and radial velocity data. In fact, our analysis of the astrometry alone uncovers the reported 270 d period and an even stronger signal at 50 days. We estimate the uncertainties in the parameters using a Markov Chain Monte Carlo approach. The nominal precision of the new Doppler measurements is about 150 s$^{-1}$ while their standard deviation is 250 ms$^{-1}$. However, the best fit solutions still have RMS of 200 ms$^{-1}$ indicating that the excess in variability is due to uncontrolled systematic errors rather than the candidate companions detected in the astrometry. Although the new data alone cannot rule-out the presence of a candidate, when combined with published radial velocity measurements, the False Alarm Probabilities of the best solutions grow to unacceptable levels strongly suggesting that the observed astrometric wobble is not due to an unseen companion.
description: ApJ Letters, under revision. 15 pages, 3 figures and 2 tables. Author list updated
title: The Effect of Prosody on Preschool Children’s Emotional, Cognitive, and Behavioral-eye and Behavioral-body Engagement during Story Time
Creators: name: Rowe, Trevor
Publisher: name: Utah State University
Year: 2016

description: Many children have insufficient early literacy experiences and fail to obtain proficient emergent literacy before they enter kindergarten. Reading to young children has been positively linked to improving their emergent literacy. Numerous factors influence how engaged children are while being read to including the adult’s prosody, receptive vocabulary, and the home literacy environment. Using a quantitative quasiexperimental design, this study sought to understand the association among prosody, child engagement (emotional, cognitive, behavioral-eye, and behavioral-body), receptive vocabulary, and the home literacy environment. The sample included 76 3-5 year-old children from local child care centers and their parents. To understand the relationship between prosody and engagement, children were randomly assigned to watch a story with typical or high prosody. Emotional, cognitive, behavioral-eye, and behavioral-body engagement measures were used to understand how engaged children were in the story. Children’s receptive vocabulary was assessed, and parents completed a home literacy survey. The moderating effects of receptive vocabulary and the home literacy environment (i.e., how much time parents spent reading to children and children’s TV time) between prosody and each type of engagement was examined. Children’s engagement did not differ between typical and high prosody stories. A statistically significant relationship was found between the cognitive and behavioral-eye r(74) = .44, p < .01, cognitive and behavioral-body r(74) = .30, p < .01, and behavioral-eye and behavioral-body engagement measures r(74) = .72, p < .01. Receptive vocabulary and the home literacy environment did not moderate the relationship between story prosody and any type of engagement.
title: An Electromagnetic Coupling Model for Side-Channel Analysis
Creators: name: Schena, Michael L.
Publisher: name: Utah State University
Year: 2016

description: This thesis presents an EM coupling model used to enhance power, side-channel measurements used in CPA. The Kalman filter is used to combine measurements of magnetic flux density with voltage or current traditionally used to measure power consumption. The DES encryption algorithm is used to evaluate CPA using EM coupled power measurements compared to traditional power measurements.
Health Care-Associated Infection Prevention Outcomes: Evaluating the Link Between Infection Prevention Practices in Healthcare Facilities and their Health Care-Associated Infection Rates
Creators: name: Njoku, Chidinma Veronica
Publisher: name: University of Nevada, Las Vegas
Year: 2019

description:  Healthcare-associated infections (HAI) are a pressing problem affecting vulnerable individuals who come to the hospital to receive care for one condition only to find that they have contracted another during their stay. Studies point to the importance of training and educating staff in order to implement and comply with recommended infection control and prevention control and prevention practices as lack of training and knowledge about infection control and prevention has been perceived to bring about a limited ability for direct care staff to adhere to recommended processes and activities. Although there are prior studies on the effects of assessments, infection control practices, and audits on the reduction of healthcare associated infections, there is little research tying facility structure, resources, and practices with HAI rates of facilities.
 The purpose of this research is to discover if there is an association between infection control practices of healthcare facilities, their reported HAI rates and outbreaks of notifiable disease. Datasets for analysis will include: National Healthcare Safety Network (NHSN) data, Infection control assessments result from Nevada facilities, health care facility outbreak data (length of outbreak, etiologic agent, the month of outbreak, etc.), nursing home compare data, and hospital compare data as it related to the study. Once the link is better understood, this information can be utilized in assessing and developing more effective infection prevention measures for healthcare facilities.
 The Donabedian framework was used to examine and evaluate the structure, process, and outcome of infection control practices. In this study, structure elements and process elements are shown to influence outcome.
Modeling the kinematics of the decelerating jets from the black hole X-ray binary MAXI J1348$-$630
Creators: name: Carotenuto, F.
name: Tetarenko, A. J.
name: Corbel, S.
Publisher: name: arXiv
Year: 2022
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: Black hole low mass X-ray binaries (BH LMXBs) can launch powerful outflows in the form of discrete ejecta. Observing the entire trajectory of these ejecta allows us to model their motion with great accuracy, and this is essential for measuring their physical properties. In particular, observing the final deceleration phase, often poorly sampled, is fundamental to obtain a reliable estimate of the jet's energy. During its 2019/2020 outburst, the BH LMXB MAXI J1348$-$630 launched a single-sided radio-emitting jet that was detected at large scales after a strong deceleration due to the interaction with the interstellar medium (ISM). We successfully modelled the jet motion with a dynamical external shock model, which allowed us to constrain the jet initial Lorentz factor $Γ_0 = 1.85^{+0.15}_{-0.12}$, inclination angle $θ= 29.3_{-3.2}^{+2.7}$ deg and ejection date $t_{\rm ej} = 21.5_{-3.0}^{+1.8}$ (MJD $-$ $58500$). Under simple assumptions on the jet opening angle and on the external ISM density, we find that the jet has a large initial kinetic energy $E_0 = 4.6^{+20.0}_{-3.4} \times 10^{46}$ erg, far greater than what commonly measured for LMXBs from the jet's synchrotron emission. This implies that discrete ejecta radiate away only a small fraction of their total energy, which is instead transferred to the environment. The jet power estimate is larger than the simultaneous available accretion power, and we present several options to mitigate this discrepancy. We infer that MAXI J1348$-$630 is likely embedded in an ISM cavity with internal density $n = 0.0010^{+0.0005}_{-0.0003}$ cm$^{-3}$ and radius $R_{\rm c} = 0.61^{+0.11}_{-0.09}$ pc, which could have been produced by the system's previous activity, as proposed for other BH LMXBs.
description: 17 pages, 6 figures. Accepted for publication in MNRAS
Microscale pressure fluctuations measured within the lower atmospheric boundary layer
Creators: name: Elliott, James Arthur
Publisher: name: University of British Columbia
Year: 2011

description: An instrument was developed to measure the static pressure fluctuations within the turbulent flow of the atmospheric boundary layer. This instrument was used to measure some of the properties of pressure fluctuations over a flat boundary and over water waves and has provided the first reliable pressure data within a turbulent boundary layer. For all observations over a flat boundary the root-mean-square pressure produced by the boundary layer turbulence was about 2.6 times the mean stress. The spectra had a power law behaviour with a mean slope of -1.7 for scales above the peak of the vertical velocity spectrum. Pressure fluctuations were approximately spherical in shape, and propagated downstream at a rate equal to the 'local' mean wind. Above the boundary, the large scale pressure fluctuations were approximately in phase with the downstream velocity fluctuations; at small scales there was a large phase difference (≃135°). These phase differences were interpreted to be the result of the large pressure producing scales interacting with the earth's surface, while the small scales were 'free' of the surface. Pressure forces resulted in an energy flux out of the downstream velocity fluctuations of about 0.45 of the total energy source for the turbulence within the band of 0.05 < kz < 20. The pressure term in the net energy budget was found to be about 1/10 of the energy feeding term. Pressure measurements near wind generated waves showed a large spectral hump at the wave frequencies. The amplitude of this hump increased, and its vertical rate of decay decreased, as the mean wind speed increased. The phase difference between pressure and waves during active generation was found to be about 135°, pressure lagging waves. This did not change vertically.
title: Accumulation of Formaldehyde and its Relation to Postmortem Aging of Non-Gadoid Fish Species
Creators: name: Al-Kanhal, Mohamad A.
Publisher: name: Utah State University
Year: 1980

description: Three non-gadoid fish species, trout (Cynoscion regalis), English sole (Paraophyrys vetulus) and Pacific red snapper (Scomber i~onicus) have been tested for the recovery of trimethylamine oxide (TMAO), trimethylamine (TMA), dimethylamine (DMA), and formaldehyde (FA) during postmortem storage at 4°C and -S°C. TMAO, TMA, and DMA content was determined by measuring them as the salt derivative of picric acid. FA was determined by using the 3-Methyl-2-Benzothiazolinone hydrazone test.
In muscle tissue of red snapper and English sole, it was clear that initially TMAO decreased during storage at 4°C, while the amounts of TMA, DMA, and FA increased. When these species were stored at -S°C, only a slight decrease . in the amount of TMAO was measured. Less TMA was formed at -S°C than at 4°C. There was no DMA production in these two species at -S°C and the amount of FA that was formed was significantly less (p < 0.05) than that formed when the storage temperature was 4°C. In the muscle tissue of the trout, no TMAO, TMA, nor DMA was recovered at both storage temperatures. There was no significant difference (p < 0.05) between the amounts of FA recovered from the trout stored at both storage temperatures.
The amount of FA recovered from all of the species decreased significantly after 7 days at 4°C and 50 days at -5°C. FA values may be used as an indication of freshness in those fish species which do not produce TMA during storage. TMA was not produced in the tissue of the English sole and the red snapper during frozen storage. No TMA was recovered from the tissues of the trout stored at 4°C and -5°C. In order to obtain reliable data, FA values would have to be determined for each species and each storage condition. FA values would only be reliable if measured before incipient spoilage takes place (7 days at 4°C and 50 days at -5°C). When TMA is produced in fish tissue, the measurement of it combined with organoleptic evaluation would be a more useful tool than FA value in evaluating fresh saltwater fish, both gadoid and non-gadoid species, during refrigerated storage.
Ending the Yarn
Creators: name: Pedersen, E. Martin
Publisher: name: RSAJournal
Year: 1996

description: One of the most distinctive characteristics of the yarn - that rambling, digressive humorous narrative type of which Mark Twain was an undisputed master - is its ending. Lacking the satisfying conclusion of the folk tale, the yarn peters out; it runs out of steam; it builds up to an understated let-down anticlimax. By enumerating six types of yarn endings, this paper attempts an explanation for this curious textual and performance feature. The essay examines texts from folklore and literature, including oral sources, but it also analyzes the linguistic, psychological, and socia-cultural contexts and functions of this intentionally weak closure to the great American story.
description: RSAJournal, Vol. 7 (1996): Untitled