cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Information geometry of Gaussian channels
Creators: name: Monras, Alex
name: Illuminati, Fabrizio
Publisher: name: arXiv
Year: 2009
Subjects: subject: Quantum Physics (quant-ph)
subject: Other Condensed Matter (cond-mat.other)
subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: We define a local Riemannian metric tensor in the manifold of Gaussian channels and the distance that it induces. We adopt an information-geometric approach and define a metric derived from the Bures-Fisher metric for quantum states. The resulting metric inherits several desirable properties from the Bures-Fisher metric and is operationally motivated from distinguishability considerations: It serves as an upper bound to the attainable quantum Fisher information for the channel parameters using Gaussian states, under generic constraints on the physically available resources. Our approach naturally includes the use of entangled Gaussian probe states. We prove that the metric enjoys some desirable properties like stability and covariance. As a byproduct, we also obtain some general results in Gaussian channel estimation that are the continuous-variable analogs of previously known results in finite dimensions. We prove that optimal probe states are always pure and bounded in the number of ancillary modes, even in the presence of constraints on the reduced state input in the channel. This has experimental and computational implications: It limits the complexity of optimal experimental setups for channel estimation and reduces the computational requirements for the evaluation of the metric: Indeed, we construct a converging algorithm for its computation. We provide explicit formulae for computing the multiparametric quantum Fisher information for dissipative channels probed with arbitrary Gaussian states, and provide the optimal observables for the estimation of the channel parameters (e.g. bath couplings, squeezing, and temperature).
description: 19 pages, 4 figures
MPEC 2023-Y03 : 2023 XT14
Creators: name: Minor Planet Center Staff
Publisher: name: The Minor Planet Center
Year: 2023
Subjects: subject: Small Solar System bodies
valueUri: http://astrothesaurus.org/uat/1469
subject: 2023 XT14

description: The Minor Planet Electronic Circulars contain information on unusual minor planets, routine data on comets and natural satellites, and occasional editorial announcements.  They are published on behalf of Division F of the International Astronomical Union by the Minor Planet Center, Smithsonian Astrophysical Observatory, Cambridge, MA 02138, U.S.A.
The Milnor degree of a three-manifold
Creators: name: Cochran, Tim
name: Melvin, Paul
Publisher: name: arXiv
Year: 2009
Subjects: subject: Geometric Topology (math.GT)
subject: FOS: Mathematics
subject: 57M27, 57M25

description: The Milnor degree of a 3-manifold is an invariant that records the maximum simplicity, in terms of higher order linking, of any link in the 3-sphere that can be surgered to give the manifold. This invariant is investigated in the context of torsion linking forms, nilpotent quotients of the fundamental group, Massey products and quantum invariants, and the existence of 3-manifolds with any prescribed Milnor degree and first Betti number is established. Along the way, it is shown that the number M(k,r) of linearly independent Milnor invariants of degree k, distinguishing r-component links in the 3-sphere whose lower degree invariants vanish, is positive except in the classically known cases (when r = 1, and when r = 2 with k = 2, 4 or 6).
description: This version, to appear in Journal of Topology, includes only minor revisions, and added proof of Corollary 1.2
title: Sequential Thrusting Beneath the Willard Thrust Fault, Wasatch Mountains, Ogden, Utah
Creators: name: Schirmer, Tad William
Publisher: name: Utah State University
Year: 1985

description: The downstructure of viewing geologic maps, balanced and cross sections, and hanging-wall-sequence diagrams are applied to produce the first comprehensive synthesis of the structure below the willard thrust sheet.
Development of the duplex beneath the Willard thrust may be explained with a "piggyback" thrust model where younger thrust slices form below and fold an older, overlying thrust sheet. Progressive failure of the footwall ramp of the Willard thrust sheet extended the sole thrust eastward and produced a duplex consisting of thrust slices (horses) which adhered to the overriding thrust sheet where it ramped from a lower sole thrust to an upper decollement horizon. The resulting structural culmination produced a distinct antiform in the Willard thrust sheet. The duplex is here named the Ogden duplex.
Frontal folds (formed at ramps perpendicular to transport) and lateral folds (formed at ramps parallel to transport) mark the margin of Individual horses within the duplex. Folded thrusts, thrust-splay relationships, and lateral overlap of horses help determine the sequence of thrusting.
The involvement of cratonic foreland basement rocks (Farmington Canyon Complex) in thrust slices within the Ogden duplex is similar to the Moine thrust belt in northern Scotland and pinpoints this area within zone III of Boyer and Elliott's (1982) model of a thrust system dominated by a major thrust sheet.
The basement rocks form the core of several horses which moved a minimum of 9.6 km. Total shortening within the Ogden duplex is estimated at 8 to 12 km.
The sequence of thrusting is proposed from higher to lower: the willard thrust fault moved first, then the Ogden thrust fault and, finally, the Taylor and Weber thrust system (here named). Striking similarities between the Ogden thrust fault, the Weber-Taylor thrust system, and the Durst thrust fault geometries suggest that they are all part of the same system.
Un’influenza senza angoscia L’ombra lunga di Emilio Villa negli scritti di Corrado Costa
Creators: name: Portesine, Chiara
Publisher: name: La Rivista di Engramma
Year: 2017
Subjects: Emilio Villa
Corrado Costa
Notes
Exhibition

description: The purpose of this paper is to weigh Emilio Villa's critical contribution to our understanding of the writings of Corrado Costa. To classify the network of suggestions and textual references binding the two authors, I have used the definition of "influence without anxiety" (with explicit reference to the category coined by Harold Bloom). This is to indicate how Costa absorbed the Villa model especially in his early writings. On this basis, he then built his own experimental adventure in an independent way. The investigated writings are a short anthology of texts selected by Emilio Villa and dedicated to his friend (under the title Scegliendo Pel da Pelo. Cristomazia lirico – retrospettiva – inedita 1944-1970 a cura e hasard del medesimo. Per Corrado Costa). These writings show, on the one hand, that Villa refused to contaminate his work with the intertextuality intended for a contemporary poet (not even in a work formally addressed to one of his most faithful companions and collaborators). The "missing dialogue" is in the Flippant ball-feel collection. It apparently meant to accompany the flipper poems by Corrado Costa and William Xerra at the 1973 Mana market exhibition, but actually turned to great models of the Past, such as the Classics and the Pre-Socratics. On the other hand, the collections selected for Corrado Costa (Ripetibile. Per Emilio Villa, Continuando a parlare in tema di silenzio and Montagna bianca) fundamentally depend on Villa's work as to some of the following topics (aphasia, the problem with combinatorial poetry, heraclitean suggestions) and rhetorical devices (mathematical and scientific language, the use of parenthesis and division signs). Costa eventually manages to overcome his early bond to the model, but you can still find traces and sediments in his works of a "primordial" influence.
Vlasov scaling for stochastic dynamics of continuous systems
Creators: name: Finkelshtein, Dmitri
name: Kondratiev, Yuri
name: Kutoviy, Oleksandr
Publisher: name: arXiv
Year: 2010
Subjects: subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences
subject: 82C22, 60K35, 82C21

description: We describe a general scheme of derivation of the Vlasov-type equations for Markov evolutions of particle systems in continuum. This scheme is based on a proper scaling of corresponding Markov generators and has an algorithmic realization in terms of related hierarchical chains of correlation functions equations. Several examples of the realization of the proposed approach in particular models are presented.
description: 23 pages
title: Utah Boating and Fishing Survey: Applying Contingent Valuation and Travel Cost Methods to Estimate Recreation Values in Northern Utah for the Bear River Water Development Project
Creators: name: Williams, Jeff T.
Publisher: name: Utah State University
Year: 1994

description: The intent of this thesis is to compare contingent valuation methods (CVM) and travel cost methods (TCM) to estimate consumer surplus for boaters and anglers in northern Utah. TCM results are about three times that of CVM. Several limitations are noted, specifically that CVM solicits given willingness to pay (WTP for specific reservoir sites. TCM analyzes aggregated trips to reservoirs with a wide array of site characteristics.
title: A History of the United States Air Force Reserve Officers Training Corps
Creators: name: Stevens, Raymond A.
Publisher: name: Utah State University
Year: 1955

description: The problem: A historical study of the United States Air Force Reserve Officers Training Corus
Tragic as it may seem, every generation of Americans, without exception, has had to go to war. Americans, as hopeful and idealistic about peace as any people in history, have been forced into war three times in four decades—twice in the last one. When a great nation must choose between war and survival, there really is no choice. It must fight.
Structured jets and VHE emission of blazars and radiogalaxies
Creators: name: Tavecchio, F.
name: Ghisellini, G.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: Recent observations in the TeV band challenge the simplest models developed to describe the overall emission of blazars and radiogalaxies. In particular, the observation of variable TeV emission from M87 and the fast variability shown by PKS 2155-304 challenge the standard framework. We discuss how the existence of a radial structure in the sub-pc scale jet, with faster a component ("spine" or "needles") embedded in a slower layer can explain the basic phenomenology of these sources.
description: 4 pages, 3 figures. To be published in the proceedings of the 4th Heidelberg International Symposium on High Energy Gamma-Ray Astronomy, July 7-11, 2008
“Desdemona, noun, See Othello” Giulia Niccolai: Gender&Neoavanguardia
Creators: name: Giammei, Alessandro
Publisher: name: La Rivista di Engramma
Year: 2017
Subjects: Poesia verbovisionaria
Othello
Desdemona
Gender
AvantGarde
Visual poem
Patriarchy
Typography

description: By analyzing the most visual poems by Giulia Niccolai (namely the concrete ones in Humpty Dumpty and the meta-typographical ones in Poema & Oggetto), this article shows that the author’s experimental method throughout the 1970s coincided with an exploration of her own subaltern condition as a woman within the patriarchal context of Italy’s Neo-Avant-Garde. Rather than a process towards the reclaiming of her own authorial voice—as it has been described by previous scholarships—the self-marginalization of the ‘Mulino di Bazzano’ creative phase is interpreted as an original and ironic way to smash the patriarchy from a proudly lateral position. Manganelli’s interpretation of Niccolai as a “Sherezade” (as well as her own identification with Desdemona) is put into question through the poet’s own meta-literary comments in the early 1980s; and her intention to undermine phallogocentrism is retraced to its roots in the very opening of her first book of poems. Her writing by proxy, her borrowed languages, and her voiceless cut-up experiments (conducted both on texts by others and on actual objects) are read as feminist gestures.
Continental-Scale Temperature Variability during the Past Two Millennia
Creators: Ahmed, Moinuddin
Anchukaitis, Kevin
Asrat, Asfawossen
Borgaonkar, Hemant P.
Braida, Martina
Buckley, Brendan M.
Büntgen, Ulf
Chase, Brian M.
Christie, Duncan A.
Cook, Edward R.
Curran, Mark A. J.
Diaz, Henry F.
Esper, Jan
Fan, Ze-Xin
Gaire, Narayan P.
Ge, Quansheng
Gergis, Joëlle
González-Rouco, Jesús Fidel
Goosse, Hugues
Grab, Stefan W.
Graham, Nicholas
Graham, Rochelle
Grosjean, Martin
Hanhijärvi, Sami T.
Kaufman, Darrell S.
Kiefer, Thorsten
Kimura, Katsuhiko
Korhola, Atte A.
Krusic, Paul J.
Lara, Antonio
Lézine, Anne-Marie
Ljungqvist, Fredrik C.
Lorrey, Andrew M.
Luterbacher, Jürg
Masson-Delmotte, Valérie
Viau, Andre E.
McCarroll, Danny
McConnell, Joseph R.
McKay, Nicholas P.
Morales, Mariano S.
Moy, Andrew D.
Mulvaney, Robert
Mundo, Ignacio A.
Nakatsuka, Takeshi
Nash, David J.
Neukom, Raphael
Nicholson, Sharon E.
Oerter, Hans
Palmer, Jonathan G.
Phipps, Steven J.
Prieto, Maria R.
Rivera, Andres
Sano, Masaki
Severi, Mirko
Shanahan, Timothy M.
Shao, Xuemei
Shi, Feng
Sigl, Michael
Smerdon, Jason E.
Solomina, Olga N.
Steig, Eric J.
Stenni, Barbara
Thamban, Meloth
Trouet, Valerie
Turney, Chris S. M.
Umer, Mohammed
van Ommen, Tas
Verschuren, Dirk
Villalba, Ricardo
Vinther, Bo M.
von Gunten, Lucien
Wagner, Sebastian
Wahl, Eugene R.
Wanner, Heinz
Werner, Johannes P.
White, James W. C.
Yasue, Koh
Zorita, Eduardo
Publisher: name: Columbia University
Year: 2013
Subjects: Earth temperature
Atmosphere
Paleoclimatology
Climatic changes

description: Past global climate changes had strong regional expression. To elucidate their spatio-temporal pattern, we reconstructed past temperatures for seven continental-scale regions during the past one to two millennia. The most coherent feature in nearly all of the regional temperature reconstructions is a long-term cooling trend, which ended late in the nineteenth century. At multi-decadal to centennial scales, temperature variability shows distinctly different regional patterns, with more similarity within each hemisphere than between them. There were no globally synchronous multi-decadal warm or cold intervals that define a worldwide Medieval Warm Period or Little Ice Age, but all reconstructions show generally cold conditions between ad 1580 and 1880, punctuated in some regions by warm decades during the eighteenth century. The transition to these colder conditions occurred earlier in the Arctic, Europe and Asia than in North America or the Southern Hemisphere regions. Recent warming reversed the long-term cooling; during the period ad 1971–2000, the area-weighted average reconstructed temperature was higher than any other time in nearly 1,400 years.
title: Relative Toxicity of Select Dehydropyrrolizidine Alkaloids and Evaluation of a Heterozygous P53 Knockout Mouse Model for Dehydropyrrolizidine Alkaloid Induced Carcinogenesis
Creators: name: Brown, Ammon W.
Publisher: name: Utah State University
Year: 2015

description: Dehydropyrrolizidine alkaloids (DHPAs) are a large group of globally important plant-derived pro-toxins that can contaminate or are naturally present in animal feed and the human food supply as well as herbal supplements. Their bioactive metabolites are potentially hepatotoxic, pneumotoxic, genotoxic and carcinogenic. Due to the difficulty in obtaining sufficient quantities of purified DHPAs, toxicity studies have largely relied on single intraperitoneal injections in rodent models, and carcinogenicity studies have been limited to a small handful of the hundreds of isolated DHPAs. To assess the relative toxicity of structurally diverse DHPAs in a more biologically relevant manner, male California White chicks were dosed orally with 0.01, 0.04, 0.13, or 0.26 mmol of seven different DHPAs and three DHPA N-oxides kg-1 bodyweight for 7 days. DHPAs were grouped in relation to their toxicity based on clinical, serum biochemical, and histopathological evaluations as well as tissue adduct accumulation rates. Using the same model, a reduced extract from comfrey, a commonly used DHPA containing herb, was compared to its two major constituent DHPAs, intermedine and lycopsamine. Based on the same parameters, the comfrey extract was more toxic than pure lycopsamine or intermedine. Addressing the need for a more sensitive carcinogenicity model, male heterozygous p53 knockout mice were treated with riddelliine 5, 15 or 45 mg kg–1 bodyweight day-1 by oral gavage for 14 days, or given a long-term treatment of riddelliine 1 mg kg-1 bodyweight day–1 in pelleted feed for 12 months. Exposure to riddelliine increased the odds of tumor development in a dose-responsive manner (odds ratio 2.05 and Wald 95% confidence limits between 1.2 and 3.4). The most common neoplasm was hepatic hemangiosarcoma, which is consistent with previously published lifetime rodent studies.
The results of this research demonstrate that the California White chick model is sensitive for comparison of DHPA toxicity, and data obtained from this research can be used to validate previous DHPA toxicity research. It also demonstrates that comfrey toxicity may have been previously underestimated. The heterozygous p53 knockout mouse model is beneficial for further investigation of comparative carcinogenesis of structurally and toxicologically different DHPAs and their N-oxides.
Studying uniform thickness I: Legendrian simple iterated torus knots
Creators: name: LaFountain, Douglas J.
Publisher: name: arXiv
Year: 2009
Subjects: subject: Geometric Topology (math.GT)
subject: Symplectic Geometry (math.SG)
subject: FOS: Mathematics
subject: 57M25, 57R17

description: We prove that the class of topological knot types that are both Legendrian simple and satisfy the uniform thickness property (UTP) is closed under cabling. An immediate application is that all iterated cabling knot types that begin with negative torus knots are Legendrian simple. We also examine, for arbitrary numbers of iterations, iterated cablings that begin with positive torus knots, and establish the Legendrian simplicity of large classes of these knot types, many of which also satisfy the UTP. In so doing we obtain new necessary conditions for both the failure of the UTP and Legendrian non-simplicity in the class of iterated torus knots, including specific conditions on knot types.
description: 21 pages, 5 figures; final version, to appear in Algebraic and Geometric Topology
Electrical conductivity structure of the lower crust and upper mantle in western Canada
Creators: name: Caner, Bernard
Publisher: name: University of British Columbia
Year: 2011

description: Geomagnetic induction techniques have been used to study the structure of the crust and upper mantle in western Canada. Geomagnetic depth-sounding (GDS) has been used primarily for mapping, and magnetotellurics (MT) for quantitative interpretation. Self-consistent models of electrical conductivity structure have been derived from the combined MT/GDS data. The conductivity structure models have been considered in conjunction with other relevant geophysical information: heat-flow, seismology and aeromagnetic surveys. No definite petrological models can be derived because of the order-of-magnitude uncertainties in the relations between electrical conductivity, temperature and composition. However, if we exclude geochemically improbable solutions, the following two distinct results can be extracted: a) In southwestern Canada (boundaries not clearly defined, but at least as far east as Lethbridge), the uppermost mantle is moderately conducting (resistivity 30-50 ohm-meters). This indicates a temperature of at least 750°C at depth 35 km., and provides independent confirmation (without assumptions of crustal structure) of the heat-flow derived estimates of Roy et al (1968b). b) In a sharply delineated region starting from about 0-30 km west of the Rocky Mountain Trench, the lower crust (from a depth of about 10-15 km) is conductive. The most likely interpretation is a hydrated lower crust, as proposed by Hyndman and Hyndman, 1968. Hydration alone is sufficient to explain the observed conductivities, i.e. higher temperatures are not necessarily required for this model. However, given the information from (a) above, some partial melting of hydrated granitic materials should occur in this zone; this is in good agreement with the geological evidence of granitic intrusives in this region.
title: In Vitro, Non-Invasive Imaging and Detection of Single Living Mammalian Cells Interacting with Bio-Nano-Interfaces
Creators: name: Li, Qifei
Publisher: name: Utah State University
Year: 2015

description: Understanding of bio-nano-interfaces of living mammalian cells will benefit the identification of cellular alterations (e.g. nucleic acids, amino acids, biomechanics, etc.) due to external stimuli, the design of biomaterials (e.g. nanoparticles, nanotubes) and the investigation of the interaction between cells and bio-nano-interfaces (e.g. cell differentiation on 3D nanostructured materials). Analytical techniques can be applied to evaluate the chemical, physical, and mechanical properties of mammalian cells when exposed to such bio-nano-interfaces. In this study, non-invasive advanced spectroscopy techniques including atomic force microscopy (AFM) and Raman microscopy (RM), in conjunction with traditional biological methods are utilized to elucidate specific characteristic information for biological samples and how these property changes reflect the interaction with external stimuli.
The focus of this dissertation is on the biophysical, biochemical and cytotoxic detection of mammalian cells interacting with bio-nano-interfaces, and this dissertation can be classified into three topics: biomechanics/cellular biopolymers measurement, bio-interfaces and nano-interfaces studies.
For the topic of biomechanics/cellular biopolymers measurement, cellular biophysical and biomechanical properties could be used as differentiation markers to classify cellular differentiation. For the bio-interfaces part, it was observed that BRMS1 expression changed cellular biochemical and biomechanical properties, and the expressions of reactive oxidative species (ROS), apoptosis and cell viability of five types of cells displayed similar patterns over doxorubicin (DOX) incubation time. Secondly, A549 cells were treated with diesel exhaust particles (DEP) and resveratrol (RES) to study the effect of RES on the DEP-induced cells, and it was found that RES can alleviate DEP intervention on cellular structure and increase DEP-induced biomechanical and inflammatory changes. For the nano-interfaces topic, first we synthesized a hybrid nanoparticle with the multimodal properties of fluorescence imaging, Surface-enhanced Raman spectroscopy (SERS) detection and photothermal therapy (PTT) for single living cell analysis of epidermal growth factor receptor (EGFR) and specifically killed cancer cells with high EGFR expression. Additionally, to increase surface area, light-heat conversion efficiency and biocompatibility, we developed a silica coated nanoparticle conjugated with anti-human epidermal growth factor receptor 2 (HER2) antibody. Finally, three-dimensional TiO2 nanotubes with Au nanoparticles coating were synthesized and used to study trophoblast-derived stem-like cells growth on such 3D nanostructures.
title: Negative Reinforcement Through Contingent Easy-Task Presentation
Creators: name: Nickerson, Cicely Irene
Publisher: name: Utah State University
Year: 2015

description: Escape from instructional demands is one of the most common functions of problem behavior. Some research suggests that a switch from difficult to easy tasks may function as a reinforcer for problem behavior. This is of particular concern for situations in which easy tasks are part of the intervention procedure to reduce problem behavior. This project examined the reinforcing effects of a switch from low-probability (low-p) to high-probability (high-p) tasks for individuals whose problem behavior was maintained by escape from demands. It also provided preliminary evidence as to the quality of reinforcement provided by a switch from low- high-p tasks. Three individuals with disabilities who were referred for treatment of escape-maintained problem behavior participated in this research. We used a multi-element design to compare the effects of two intervention conditions on problem behavior and compliance in relation to control and baseline conditions. During the control condition, no demands were presented, and the participant had continuous access to preferred items and attention. In the baseline condition (break), a break from low-p demands was presented contingent on problem behavior. In the first intervention condition, problem behavior no longer resulted in a break from demands (escape extinction). During the second intervention condition, problem behavior following low-p tasks resulted in a switch to high-p tasks. All participants engaged in elevated levels of problem behavior and decreased compliance when problem behavior resulted in a switch of tasks. These results imply that for individuals whose problem behavior is maintained by escape from demands, a switch from low- to high-p tasks may reinforce problem behavior.
title: The Relationship of Trait Mindfulness and Positive Mental and Physical Health Among College Students
Creators: name: Potts, Sarah A.
Publisher: name: Utah State University
Year: 2015

description: Mindfulness engagement has become increasingly popular in therapeutic settings and is promising in terms of possibly reducing physical and mental health symptoms among a wide variety of clients (including college students) presenting diverse diagnoses. While a number of studies suggest that mindfulness interventions increase mindfulness ability, this assertion has not been validated because many researchers utilizing a mindfulness intervention fail to include measures assessing change in trait mindfulness ability. The present study examined mindfulness engagement and trait mindfulness, as well as physical and mental health correlates of trait mindfulness, in 300 college students (74% female) via an online survey.
Mindfulness ability in this general college population was similar to the overall mindfulness ability in the general population. Seventy-nine percent of respondents reported mindfulness engagement. Fifty-nine percent of the sample reported previous mindfulness engagement and only 32% of these individuals stated continued engagement. While no overall differences in trait mindfulness were found between respondents who had reported previous mindfulness and those who had not, individuals who spent more time in their mindfulness practice, also reported higher amounts of trait mindfulness ability. These data suggest that in order for these specific mindfulness engagements to impact trait mindfulness ability, a time engagement threshold must be met. A number of trait mindfulness variables were significantly related to a number of mental and physical health variables. However, relationships between trait mindfulness and health variables were not uniform. Multiple subscales from the Five Factor Mindfulness Scale (FFMQ) were significantly correlated with mental and physical health variables. There were few physical and mental health variables that were significantly correlated or suggested trends with the Mindful Attention Awareness Scale (MAAS). Increased cognitive symptoms of depression, yet nonclinically significant levels as measured by the Beck Depression Inventory (BDI), were significantly positively related to increased levels of trait mindfulness ability. More efforts are needed, including, measurement of mindfulness throughout intervention, increased focus regarding the construct of mindfulness ability and novel forms for measurement, and the relationship between mindfulness ability measurement of mindfulness ability and specific mental and physical health variables.
Bayesian analysis of caustic-crossing microlensing events
Creators: name: Cassan, A.
name: Horne, K.
name: Kains, N.
name: Tsapras, Y.
name: Browne, P.
Publisher: name: arXiv
Year: 2009
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: FOS: Physical sciences

description: Aims: Caustic-crossing binary-lens microlensing events are important anomalous events because they are capable of detecting an extrasolar planet companion orbiting the lens star. Fast and robust modelling methods are thus of prime interest in helping to decide whether a planet is detected by an event. Cassan (2008) introduced a new set of parameters to model binary-lens events, which are closely related to properties of the light curve. In this work, we explain how Bayesian priors can be added to this framework, and investigate on interesting options. Methods: We develop a mathematical formulation that allows us to compute analytically the priors on the new parameters, given some previous knowledge about other physical quantities. We explicitly compute the priors for a number of interesting cases, and show how this can be implemented in a fully Bayesian, Markov chain Monte Carlo algorithm. Results: Using Bayesian priors can accelerate microlens fitting codes by reducing the time spent considering physically implausible models, and helps us to discriminate between alternative models based on the physical plausibility of their parameters.
description: Accepted in A&A - 7 pages, 4 figures
title: A Liquefaction Potential Map for Cache Valley, Utah
Creators: name: Hill, Randall Jones
Publisher: name: Utah State University
Year: 1979

description: The identification of liquefaction susceptible soil deposits in Cache Valley, Utah and the relative potential that these deposits have for liquefaction were the two main purposes of this study. A liquefaction susceptibility map was developed to outline areas where liquefaction might occur during an earthquake. The susceptibility map was combined with a liquefaction opportunity map to produce a liquefaction potential map for Cache Valley, Utah. The opportunity map for Cache Valley was developed in a companion study, Greenwood (1978).
The development of the susceptibility map and the opportunity map and combining them to form a liquefaction potential map for Cache Valley was based on a procedure developed by Youd and Perkins (1977).
The liquefaction potential map is a general location map and will be a useful tool for preliminary planning by governmental agencies, planners, developers, and contractors. The use of the liquefaction potential map by these various groups will aid them in avoiding possible problem areas for project locations. It will also be a guide for further analysis of specific sites where liquefaction is probable.
title: Digital Soil Mapping Using Landscape Stratification for Arid Rangelands in the Eastern Great Basin, Central Utah
Creators: name: Fonnesbeck, Brook B.
Publisher: name: Utah State University
Year: 2015

description: Digital soil mapping typically involves inputs of digital elevation models, remotely sensed imagery, and other spatially explicit digital data as environmental covariates to predict soil classes and attributes over a landscape using statistical models. Digital imagery from Landsat 5, a digital elevation model, and a digital geology map were used as environmental covariates in a 67,000-ha study area of the Great Basin west of Fillmore, UT. A “pre-map” was created for selecting sampling locations. Several indices were derived from the Landsat imagery, including a normalized difference vegetation index, normalized difference ratios from bands 5/2, bands 5/7, bands 4/7, and bands 5/4. Slope, topographic curvature, inverse wetness index, and area solar radiation were calculated from the digital elevation model. The greatest variation across the study area was found by calculating the Optimum Index Factor of covariates, choosing band 7, normalized difference ratio bands 5/2, normalized difference vegetation index, slope, profile curvature, and area solar radiation. A 20-class ISODATA unsupervised classification of these six data layers was reduced to 12. Comparing the 12-class map to a geologic map, 166 sites were chosen weighted by areal extent; 158 sites were visited. Twelve points were added using case-based reasoning to total 170 points for model training. A validation set of 50 sites was selected using conditioned Latin Hypercube Sampling. Density plots of sample sets compared to raw data produced comparable results. Geology was used to stratify the study area into areas above and below the Lake Bonneville highstand shoreline. Raster data were subset to these areas, and predictions were made on each area. Spatial modeling was performed with three different models: random forests, support vector machines, and bagged classification trees. A set of covariates selected by random forests variable importance and the set of Optimum Index Factor covariates were used in the models. The Optimum Index Factor covariates produced the best classification using random forests. Classification accuracy was 45.7%. The predictive rasters may not be useful for soil map unit delineation, but using a hybrid method to guide further sampling using the pre-map and standard sampling techniques can produce a reasonable soil map.
title: Analysis of Quality of Two Different Varieties of Peaches With Respect To Organic and Conventional Cultivation Techniques
Creators: name: Sawant, Shruti D.
Publisher: name: Utah State University
Year: 2015

description: The demand for organic produce is based on a general belief that organically grown produce is more nutritious than conventionally cultivated produce. To date, there have been several studies both supporting and contradicting these assumptions and at this point there is no clear consensus. However, there has been one accepted and appreciated aspect of the organic cultivation, which is, that it renders the soil more suitable for long-term cultivation and improves the ecological aspect of producing produce. For this reason, in the long term organic farming may be both economically and ecologically more desirable. The focus of this project as a whole is to study conventional and organic methods for peach cultivation to better understand them and to determine the most economically and ecologically desirable method of peach cultivation in Utah. This specific experiment involved evaluating physicochemical properties of peaches grown under 6 different organic treatments (peaches grown in a certified organic orchard using six different organic treatments) and cultivated using 5 different conventional treatments (peaches grown in a conventional orchard). Peaches were harvested on four different harvest dates to determine the effect of time of cultivation on peach fruit quality. Several different quality attributes of peaches were evaluated. Peaches cultivated under six different organic treatments were statistically compared to determine the difference in their quality attributes. Similarly, peaches cultivated under five different conventional treatments were compared statistically to determine the difference in their quality attributes. Effect of organic treatment on peach quality was not statistically compared with the effect of conventional treatment on peach quality as both treatments were used in separate orchards. No significant differences were observed in quality attributes of either variety of peaches subjected to 6 different organic treatments, nor were any differences observed amongst peaches subjected to 5 different conventional treatments. Moreover, it was observed that peaches harvested on early dates (typically 1 and 2) had more desirable quality attributes. It is interesting that the treatments affected peach growth and development, and future work will involve a correlation with sensory, and volatile analysis.
On the tensor square of non-abelian nilpotent finite dimensional Lie algebras
Creators: name: Niroomand, Peyman
Publisher: name: arXiv
Year: 2010
Subjects: subject: Rings and Algebras (math.RA)
subject: FOS: Mathematics
subject: Primary 17B30, Secondary 17B60

description: For every finite $p$-group $G$ of order $p^n$ with derived subgroup of order $p^m$, Rocco in \cite{roc} proved that the order of tensor square of $G$ is at most $p^{n(n-m)}$. This upper bound has been improved recently by author in \cite{ni}. The aim of the present paper is to obtain a similar result for a non-abelian nilpotent Lie algebra of finite dimension. More precisely, for any given $n$-dimensional non-abelian nilpotent Lie algebra $L$ with derived subalgebra of dimension $m$ we have $\mathrm{dim} (L\otimes L)\leq (n-m)(n-1)+2$. Furthermore for $m=1$, the explicit structure of $L$ is given when the equality holds.
description: Paper in press in Linear Multilinear Algebra
title: The African-American Community of Ogden, Utah: 1910-1950
Creators: name: Stene, Eric
Publisher: name: Utah State University
Year: 1994

description: The African-American community of Ogden, Utah started much of its growth in the early twentieth century. Prior to the early nineteen hundreds less than one hundred African Americans lived in Ogden. The availability of jobs with the railroads brought many African Americans to Ogden in search of steady employment. Through the decades Ogden's African Americans branched out from railroad and service work into business ownership. As the African-American community grew, its members established new churches in the city.
Racism and indifference had their impact on the African Americans. They found themselves segregated into specific neighborhoods and African-American males were unable to hold the priesthood in the Church of Jesus Christ of Latter-day Saints. Racism was not confined to members of the Mormon Church as the Ku Klux Klan attempted to make inroads into Ogden in the early 1920s. The Klan's limited influence lasted less than two years and soon disappeared due to efforts by the Ogden City Commission.
In the 1990s African Americans still comprised a small percentage of Ogden City and Weber County. The L.D.S. Church ended priesthood denial for African Americans in 1978. The study of Ogden's African-American community provides insight into a minority community in the western United States and contrasts the differences between race relations in the West and other geographic areas of the United States.
A High Statistics Study of Flavour-Singlet Mesons with Staggered Fermions
Creators: name: Gregory, E. B.
name: Irving, A. C.
name: McNeile, C.
name: Richards, C. M.
Publisher: name: arXiv
Year: 2008
Subjects: subject: High Energy Physics - Lattice (hep-lat)
subject: FOS: Physical sciences

description: We present some early results from a high statistics study of the scalar and pseudoscalar singlet sectors of lattice QCD using 2+1 flavours of Asqtad improved staggered fermions. The use of the Asqtad action has allowed us to generate an unprecedented number of configurations at 2 lattice spacings which on completion we hope will give us a significantly improved view of both the scalar and pseudoscalar singlet sectors.
description: 7 pages, 3 figures, 1 table, to appear in the Proceedings of the XXVI International Symposium on Lattice Field Theory, July 14 - 19, 2008, Williamsburg, VA, USA
Comparing topological charge definitions using topology fixing actions
Creators: name: Bruckmann, Falk
name: Gruber, Florian
name: Jansen, Karl
name: Marinkovic, Marina
name: Urbach, Carsten
name: Wagner, Marc
Publisher: name: arXiv
Year: 2009
Subjects: subject: High Energy Physics - Lattice (hep-lat)
subject: FOS: Physical sciences

description: We investigate both the hyperbolic action and the determinant ratio action designed to fix the topological charge on the lattice. We show to what extent topology is fixed depending on the parameters of these actions, keeping the physical situation fixed. At the same time the agreement between different definitions of topological charge - the field theoretic and the index definition - is directly correlated to the degree topology is fixed. Moreover, it turns out that the two definitions agree very well. We also study finite volume effects arising in the static potential and related quantities due to topology fixing.
description: 17 pages, 7 figures, minor changes, as published in EPJA
Continuing upward trend in Mt Read Huon pine ring widths – Temperature or divergence?
Creators: Allen, K. J.
Cook, Edward R.
Buckley, Brendan M.
Larsen, S. H.
Drew, D. M.
Downes, G. M.
Francey, R. J.
Peterson, M. J.
Baker, P. J.
Publisher: name: Columbia University
Year: 2014
Subjects: Dendroclimatology
Huon pine
Paleoclimatology
Botany
Climatic changes

description: To date, no attempt has been made to assess the presence or otherwise of the “Divergence Problem” (DP) in existing multi-millennial Southern Hemisphere tree-ring chronologies. We have updated the iconic Mt Read Huon pine chronology from Tasmania, southeastern Australia, to now include the warmest decade on record, AD 2000–2010, and used the Kalman Filter (KF) to examine it for signs of divergence against four different temperature series available for the region. Ring-width growth for the past two decades is statistically unprecedented for the past 1048 years. Although we have identified a decoupling between temperature and growth in the past two decades, the relationship between some of the temperature records and growth has varied over time since the start of instrumental records. Rather than the special case of ‘divergence’, we have identified a more general time-dependence between growth and temperature over the last 100 years. This time-dependence appears particularly problematic at interdecadal time scales. Due to the time-dependent relationships, and uncertainties related to the climate data, the use of any of the individual temperature series examined here potentially complicates temperature reconstruction. Some of the uncertainty in the climate data may be associated with changing climatic conditions, such as the intensification of the sub-tropical ridge (STR) and its impact on the frequency of anticyclonic conditions over the Mt Read site. Increased growth at the site, particularly in the last decade, over and above what would be expected based on a linear temperature model alone, may be consistent with a number of hypotheses. Existing uncertainties in the climate data need to be resolved and independent physiological information obtained before a range of hypotheses for this increased growth can be effectively evaluated.
Stata code for the compilation of EMM Survey Registry : creation of a single data from individual Excel files
Creators: name: Ando, Yuma
name: Dimitri, Prandner
name: Yu, Yip-Ching
Publisher: name: Zenodo
Year: 2022
Subjects: Stata, do file, EMM Survey Registry

description: This code is a text file containing a number of commands that can be executed by STATA. This file was used internally to generate a single data file containing all surveys of the EMM Survey Registry. Once provided with individual files containing internally checked Excel files containing individual surveys, this code implements different operations including : 1) reads and compiles all surveys from each Excel files into a single data file ; 2) for each standardized questions, a new variable in numerical values with labels is created ; 3) export the compiled data into different formats (dta, csv and sav). -- The EMM Survey Registry is jointly being produced by SSHOC’s Task 9.2 (Ethnic Migration Studies) team of Work Package 9 (Data Communities), in close collaboration with COST Action 16111 – ETHMIGSURVEYDATA (an international network of more than 200 researchers active in the ethnic and migration studies field) and FAIRETHMIGQUANT (a French Agence Nationale de la Recherche funded Open Science project).
title: The Relation of Some Physical and Chemical Factors of the Soil to the Productivity and Distribution of Certain Waterfowl Food Plants at the Bear River Migratory Waterfowl Refuge
Creators: name: Jensen, Grant Hortin
Publisher: name: Utah State University
Year: 1940

description: Within the last raw years several areas thin the state of Utah have been and are being developed for the conservation of migratory birds. Of utmost importance in this respect is the management of these areas so as to obtain a sufficient supply of rood plants for use by water fowl. Previous work done at the Bear River Migratory Waterfowl Refuge shows that the productivity or aquatic rood plants, chiefly Potamogeton pectinates L. and Ruppis marittima L. varies with different localities and that these differences could not be attributed to chemical conditions of the water, i.e., dissolved oxygen, alkalinity, and hydrogen ion. Inasmuch as little was done on the soils. it was felt that soil characteristics might have some street on the productivity and distribution or the aquatic plants at this locality. Results from such a problem would undoubtedly aid in rut development or these habitats; hence the study seems opportune and might be or value.
Experimental investigation of classical and quantum correlations under decoherence
Creators: name: Xu, Jin-Shi
name: Xu, Xiao-Ye
name: Li, Chuan-Feng
name: Zhang, Cheng-Jie
name: Zou, Xu-Bo
name: Guo, Guang-Can
Publisher: name: arXiv
Year: 2009
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: It is well known that many operations in quantum information processing depend largely on a special kind of quantum correlation, that is, entanglement. However, there are also quantum tasks that display the quantum advantage without entanglement. Distinguishing classical and quantum correlations in quantum systems is therefore of both fundamental and practical importance. In consideration of the unavoidable interaction between correlated systems and the environment, understanding the dynamics of correlations would stimulate great interest. In this study, we investigate the dynamics of different kinds of bipartite correlations in an all-optical experimental setup. The sudden change in behaviour in the decay rates of correlations and their immunity against certain decoherences are shown. Moreover, quantum correlation is observed to be larger than classical correlation, which disproves the early conjecture that classical correlation is always greater than quantum correlation. Our observations may be important for quantum information processing.
description: 7 pages, 4 figures, to appear in Nature Communications
Additional file 1 of Soluble receptor for advanced glycation end products (sRAGE) is associated with obesity rates: a systematic review and meta-analysis of cross-sectional study
Creators: name: Tayyib, Nahla A
name: Ramaiah, Pushpamala
name: Alshahrani, Shadia Hamoud
name: Margiana, Ria
name: Almalki, Sami G.
name: Kareem, A. K.
name: Zabibah, Rahman S.
name: Shbeer, Abdullah M.
name: Ali, Saad Hayif Jasim
name: Mustafa, Yasser Fakri
Publisher: name: figshare
Year: 2023
Subjects: Medicine
Cell Biology
Science Policy

description: Supplementary Material 1: Sup. Table 1. PRISMA Checklist. Sup. Table 2. Search strategies and the number of records according to different electronic database. Sup. Figure 1. Begg’s funnel plot (with pseudo 95% CIs) of the weighted mean difference (WMD) versus the standard error (se) of (WMD) for the comparison of (A) body mass index (BMI), (B) waist circumference (WC) in those of the highest versus lowest soluble receptor for advanced glycation end products (sRAGE) categories [BMI: P egger= 0.224; P begg =0.851; WC, P egger= 0.297; P begg =0.497]