cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Chemical evolution of the Galactic bulge as traced by microlensed dwarf and subgiant stars. II. Ages, metallicities, detailed elemental abundances, and connections to the Galactic thick disc
Creators: name: Bensby, T.
name: Feltzing, S.
name: Johnson, J. A.
name: Gould, A.
name: Adén, D.
name: Asplund, M.
name: Meléndez, J.
name: Gal-Yam, A.
name: Lucatello, S.
name: Sana, H.
name: Sumi, T.
name: Miyake, N.
name: Suzuki, D.
name: Han, C.
name: Bond, I.
name: Udalski, A.
Publisher: name: arXiv
Year: 2009
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: The Bulge is the least understood major stellar population of the Milky Way. Most of what we know about the formation and evolution of the Bulge comes from bright giant stars. The underlying assumption that giants represent all the stars, and accurately trace the chemical evolution of a stellar population, is under debate. In particular, recent observations of a few microlensed dwarf stars give a very different picture of the evolution of the Bulge from that given by the giant stars. [ABRIDGED] We perform a detailed elemental abundance analysis of dwarf stars in the Galactic bulge, based on high-resolution spectra that were obtained while the stars were optically magnified during gravitational microlensing events. [ABRIDGED] We present detailed elemental abundances and stellar ages for six new dwarf stars in the Galactic bulge. Combining these with previous events, here re-analysed with the same methods, we study a homogeneous sample of 15 stars, which constitute the largest sample to date of microlensed dwarf stars in the Galactic bulge. We find that the stars span the full range of metallicities from [Fe/H]=-0.72 to +0.54, and an average metallicity of =-0.08+/-0.47, close to the average metallicity based on giant stars in the Bulge. Furthermore, the stars follow well-defined abundance trends, that for [Fe/H]<0 are very similar to those of the local Galactic thick disc. This suggests that the Bulge and the thick disc have had, at least partially, comparable chemical histories. At sub-solar metallicities we find the Bulge dwarf stars to have consistently old ages, while at super-solar metallicities we find a wide range of ages. Using the new age and abundance results from the microlensed dwarf stars we investigate possible formation scenarios for the Bulge.
description: New version accepted for publication in Astronomy and Astrophysics
title: Development and Evaluation of Laboratory Methods for Determining the Nitrogen Supplying Power of the Irrigated Soils of Northern Utah
Creators: name: Wight, Jerald Ross
Publisher: name: Utah State University
Year: 1959

description: Nitrogen is the most widely needed and the most widely used of the fertilizer elements. Yet, in spite of the voluminous research work of evaluating the nitrogen status of soils, laboratory tests for the purpose of predicting need of nitrogen fertilizer are not very widely used. In general, laboratory tests for nitrogen supplying power have not given satisfactory results. Methods currently employed by a few laboratories can be classified either as biological or chemical. In the former method, the soil is incubated under optimum conditions and the amount of nitrate released over a given period of time is measured and used as an index to the nitrogen supplying power of the soil. In the latter method a portion of the total nitrogen is released by chemical means and measured. An attempt is made using chemical methods to release the same amount or a constant portion of the amount of nitrogen that normally would be furnished to a growing plant by the soil during one season.
title: The Effect of the Method of Irrigation and Fertilizer Application on the Movement of Nitrates in the Soil
Creators: name: Banks, Lavoir A.
Publisher: name: Utah State University
Year: 1960

description: It is generally recognized that one of the most important factors limiting crop production is soil nitrogen. Farmers today are using more nitrogen fertilizers than ever before. All indications show that this usage will probably continue to increase. With the expanded use of nitrogen, it has become desirable to increase the efficiency from nitrogen fertilizers. One factor which will affect the efficiency is the position of the nitrogen in the soil in relation to the plant roots.
Coherence of single spins coupled to a nuclear spin bath of varying density
Creators: name: Mizuochi, N.
name: Neumann, P.
name: Rempp, F.
name: Beck, J.
name: Jacques, V.
name: Siyushev, P.
name: Nakamura, K.
name: Twitchen, D.
name: Watanabe, H.
name: Yamasaki, S.
name: Jelezko, F.
name: Wrachtrup, J.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: The dynamics of single electron and nuclear spins in a diamond lattice with different 13C nuclear spin concentration is investigated. It is shown that coherent control of up to three individual nuclei in a dense nuclear spin cluster is feasible. The free induction decays of nuclear spin Bell states and single nuclear coherences among 13C nuclear spins are compared and analyzed. Reduction of a free induction decay time T2* and a coherence time T2 upon increase of nuclear spin concentration has been found. For diamond material with depleted concentration of nuclear spin, T2* as long as 30 microseconds and T2 of up to 1.8 ms for the electron spin has been observed. The 13C concentration dependence of T2* is explained by Fermi contact and dipolar interactions with nuclei in the lattice. It has been found that T2 decreases approximately as 1/n, where n is 13C concentration, as expected for an electron spin interacting with a nuclear spin bath.
description: 4 pages, 4 figures, 1 movie (avi), 1 supplementary material (pdf)
Alternative sources of Omega-3 oils for Barramundi, Lates calcarifer, aquaculture
Creators: name: Alhazzaa, R
Publisher: name: University Of Tasmania
Year: 2023

description: Fish oil (FO) is the major source of dietary lipid in carnivorous fish feeds including barramundi, Lates calcarifer, which is widely farmed in Asia and Australia. However, recent increases in FO prices, increased demand and the foreseen inability of wild fisheries to meet future requirements have created a need for cheaper and more sustainable alternatives. Vegetable oils (VO) can be produced in sufficient quantities to meet the growing aquaculture demand, although they lack the long-chain (‚Äöv¢‚Ä¢C20) polyunsaturated fatty acids (LC-PUFA) beneficial to human consumers. Some VO like rapeseed oil (RO), echium oil from Echium plantagineum (EO) and linseed oil (LO) have high levels of n-3 and n-6 short-chain (‚Äöv¢¬ßC18) PUFA that can accumulate or be converted into LC-PUFA by some fish species, although generally at low efficiency, and not to docosahexaenoic acid. In a series of comparative and factorial experiments, I investigated the growth and lipid changes of barramundi fed different dietary oils: FO, RO, LO and EO over conditions covering: a range of salinities and temperatures, subject to immunity stress or supplemented with plant-derived bioactive ingredients. In general, growth performance parameters were comparable for FO and VO treatments, and resulted in accumulation of VO-derived n-3 and n-6 PUFA. Salinity has no direct effect on growth or lipid metabolism regardless of the dietary lipid source. Endogenous conversion by barramundi of dietary PUFA into LC-PUFA is limited by more than one ratelimiting step and there is a preference for incorporation of LC-PUFA into the polar lipid fraction rather than neutral lipid. The growth of barramundi slowed at sub-optimal (20¬¨‚àûC) temperature compared to optimal (30¬¨‚àûC) temperature. PUFA from dietary VO deposits in muscle and are maintained under rapid temperature decreases. In contrast, excess LC-PUFA from FO depleted faster than occurs in VO fed fish. The production of pro-inflammatory eicosanoids in fish fed FO was lower than for fish fed VO following bacterial infection. EO significantly suppressed the production of the pro-inflammatory mediators compared to RO. Sesamin, a lignan in sesame seed, enhanced the conversion of dietary PUFA into LC-PUFA for the n-3 series rather than n-6 in early juvenile barramundi. However, sesamin had negative impact on fish growth at this early life-stage. Barramundi fed on VO are a rich source of LC-PUFA precursors, ˜í¬±-linolenic and stearidonic acid, and grow well under the different environmental conditions that are typical of outdoor barramundi farms. The use of terrestrial VO containing the LC-PUFA precursors and plant-derived bioactive compounds show promise for use in barramundi aquafeed in terms of fish growth and health as either partial or complete alternatives for FO. However, using currently available VO, high content of the n -3 LC-PUFA is not achieved.
title: Cost of Marketing Utah Lambs at Alternative Markets
Creators: name: Wright, Norman E.
Publisher: name: Utah State University
Year: 1958

description: Importance of lamb marketings
The production and marketing of lambs is important in Utah's economy. In 1956, Utah ranked fifth in the United States in lambs produced and saved, with 1,038,000 head produced and 840,000 marketed for consumption, table 1. Cash receipts from the lamb marketings during the year amounted to over 10 million dollars, and in addition, the state's economy benefited through revenues, employment, and raw materials which were provided by the lamb industry.
Marketing decisions
Lamb producers and handlers are faced with many decisions in marketing their lambs. They not only must decide when and where to sell, but the question of what method of transportation to use must be answered.
In essence, the producer or handler can make direct ranch sale to slaughterers, lamb feeders, or speculators and can thereby pass on some of the decision making to the buyer; or he can sell through commission firms and competitive bidding at public livestock markets and retain the decision making himself. In the case of direct sale at the ranch, the buyer usually assumes the cost of marketing from that point until he relinquishes title. Generally, the buyer charges for this service by giving a lower price to the seller than would be received if the seller were to ship to the public livestock market.
title: An Application of a Thermodynamic Flow Equation to Water Movement in Unsaturated Soil
Creators: name: Soane, Brennan Derry
Publisher: name: Utah State University
Year: 1958

description: The movement of water in soil presents many interesting problems to the research worker. It is also a subject which finds wide and important application in agriculture and several branches of engineering.
The object of this work was to examine the usefulness of a new equation of flow of water in unsaturated soil. If valid, this new approach may be able to eliminate some of the gaps in our present knowledge of the subject.
All soil lying above the capillary fringe of a water table is in the unsaturated state with respect to water. This means that in any macroscopic volume element of soil three phases are present-- solid, liquid and gas. The volume fraction of each of these phases show wide variation in both space and time in field soils. The variation in both space and time in field soils. The variation in the volume fraction of the liquid or water phase is accompanied by a considerable change in the physical properties of the water. In the strictest sense the unsaturated state covers all intermediate conditions between saturation and an incomplete monomolecular layer of absorbed water.
It is important to recognize that the solid phase is also dynamic. It consists of unconsolidated particles with great variation of size and shape. Many solid phase properties show a complex dependence upon the amount of water present. Swelling and shrinking are well known in soils and these changes affect water movement.
Morphological quenching of star formation: making early-type galaxies red
Creators: name: Martig, Marie
name: Bournaud, Frederic
name: Teyssier, Romain
name: Dekel, Avishai
Publisher: name: arXiv
Year: 2009
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: We point out a natural mechanism for quenching of star formation in early-type galaxies. It automatically links the color of a galaxy with its morphology and does not require gas consumption, removal or termination of gas supply. Given that star formation takes place in gravitationally unstable gas disks, it can be quenched when a disk becomes stable against fragmentation to bound clumps. This can result from the growth of a stellar spheroid, for instance by mergers. We present the concept of morphological quenching (MQ) using standard disk instability analysis, and demonstrate its natural occurrence in a cosmological simulation using an efficient zoom-in technique. We show that the transition from a stellar disk to a spheroid can be sufficient to stabilize the gas disk, quench star formation, and turn an early-type galaxy red and dead while gas accretion continues. The turbulence necessary for disk stability can be stirred up by sheared perturbations within the disk in the absence of bound star-forming clumps. While gas stripping processes are limited to dense groups and clusters, and other quenching mechanisms like AGN feedback, virial shock heating and gravitational heating, are limited to halos more massive than 10^12 Mo, the MQ can explain the appearance of red ellipticals even in less massive halos and in the field. The dense gas disks observed in some of today's red ellipticals may be the relics of this mechanism, whereas red galaxies with quenched gas disks are expected to be more frequent at high redshift.
description: ApJ in press. Movies available at http://marie.martig.free.fr/MQ
Supersymmetric Reciprocal Transformation and Its Applications
Creators: name: Liu, Q. P.
name: Popowicz, Ziemowit
name: Tian, Kai
Publisher: name: arXiv
Year: 2010
Subjects: subject: Exactly Solvable and Integrable Systems (nlin.SI)
subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: The supersymmetric analog of the reciprocal transformation is introduced. This is used to establish a transformation between one of the supersymmetric Harry Dym equations and the supersymmetric modified Korteweg-de Vries equation. The reciprocal transformation, as a Bäcklund-type transformation between these two equations, is adopted to construct a recursion operator of the supersymmetric Harry Dym equation. By proper factorization of the recursion operator, a bi-Hamiltonian structure is found for the supersymmetric Harry Dym equation. Furthermore, a supersymmetric Kawamoto equation is proposed and is associated to the supersymmetric Sawada-Kotera equation. The recursion operator and odd bi-Hamiltonian structure of the supersymmetric Kawamoto equation are also constructed.
description: 31 pages, expanded
Electron-phonon coupling in crystalline Pentacene films
Creators: name: Hatch, Richard C.
name: Huber, David L.
name: Höchst, Hartmut
Publisher: name: arXiv
Year: 2009
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: Other Condensed Matter (cond-mat.other)
subject: FOS: Physical sciences

description: The electron-phonon(e-p) interaction in Pentacene (Pn) films grown on Bi(001) was investigated using photoemission spectroscopy. The spectra reveal thermal broadening from which we determine an e-p mass enhancement factor of lambda = 0.36 +/- 0.05 and an effective Einstein energy of omega_E = 11 +/- 4 meV. From omega_E it is inferred that dominant contributions to the e-p effects observed in ARPES come from intermolecular vibrations. Based on the experimental data for lambda we extract an effective Peierls coupling value of g_eff = 0.55. The e-p coupling narrows the HOMO band width by 15 +/- 8% between 75K and 300K.
description: 19 pages, 5 figures and supplementary information
title: Person-Environment Interaction Psychological Strain and Delinquency: A Longitudinal Test of the Theory
Creators: name: Gazi-Tabatabaie, Mahmood
Publisher: name: Utah State University
Year: 1986

description: Utilizing longitudinal panel data from Youth In Transition Project, the Person-Environment fit (P-E Fit) theory and its specific application to the area of delinquency and aggression was investigated longitudinally. Analysis of Covariance Structure Technique (LISREL) was used to address the issues of multi-dimensionality, stability, measurement of total P-E fit and to test the proposed delinquency model. The relationships between P-E fit, psychological strain, and delinquency were tested both cross-sectionally and longitudinally . The student sub-group (those respondents who stayed in school after high school) and the working sub-group (those who went to work after high school) were tested separately. P-E fit had significant negative effect on both psychological strain and delinquency in most of the cross-sectional models. Similar results were obtained in three of the longitudinal models also . The evidence from longitudinal models tended to support the idea that the causal flow of the relationship between P-E fit, psychological strain and delinquency to be from P-E fit to both psychological strain and delinquency. The longitudinal and cross sectional relationship between P-E fit, psychological strain, and delinquency were more pronounced among the working sub-group than the student sub-group of the sample population. P-E fit tended to be quite stable during the high school years and subject to noticeable change when the transition was made to work or college environments.
Dynamical structures in binary media of potassium-driven neurons
Creators: name: Postnov, D. E.
name: Müller, F.
name: Schuppner, R. B.
name: Schimansky-Geier, L.
Publisher: name: arXiv
Year: 2009
Subjects: subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Neurons and Cognition (q-bio.NC)
subject: FOS: Physical sciences
subject: FOS: Biological sciences

description: According to the conventional approach to model neural ensembles the extracellular environment has fixed ionic concentrations. However, in many cases the extracellular concentration of potassium ions can not be regarded as constant. That represents specific chemical pathway for neurons to interact and can influence strongly the behavior of a single neuron as well as large ensembles. The released chemical agent follows a diffusive dynamics in the external medium, that lowers the threshold of individual excitable units. We address this problem by studying simplified excitable units given by a modified FitzHugh-Nagumo dynamics. In our model neurons interact only chemically via the released and diffusing potassium in the surrounding non-active medium. We study the dynamics of a single excitable unit embedded in the extracellular matter. That leads to a number of noise-induced effects, like self-modulation of firing rate in an individual neuron. In the spatially extended situation various patterns appear ranging from spirals and traveling waves to oscillons and inverted structures depending on the parameters of the medium.
description: 27 pages, 14 figures
Dynamical Models for NGC 6503 using a Markov Chain Monte Carlo Technique
Creators: name: Puglielli, David
name: Widrow, Lawrence M.
name: Courteau, Stéphane
Publisher: name: arXiv
Year: 2010
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: We use Bayesian statistics and Markov chain Monte Carlo (MCMC) techniques to construct dynamical models for the spiral galaxy NGC 6503. The constraints include surface brightness profiles which display a Freeman Type II structure; HI and ionized gas rotation curves; the stellar rotation, which is nearly coincident with the ionized gas curve; and the line of sight stellar dispersion, with a sigma-drop at the centre. The galaxy models consist of a Sersic bulge, an exponential disc with an optional inner truncation and a cosmologically motivated dark halo. The Bayesian/MCMC technique yields the joint posterior probability distribution function for the input parameters. We examine several interpretations of the data: the Type II surface brightness profile may be due to dust extinction, to an inner truncated disc or to a ring of bright stars; and we test separate fits to the gas and stellar rotation curves to determine if the gas traces the gravitational potential. We test each of these scenarios for bar stability, ruling out dust extinction. We also find that the gas likely does not trace the gravitational potential, since the predicted stellar rotation curve is then inconsistent with the observed stellar rotation curve. The disc is well fit by an inner-truncated profile, but the possibility of ring formation by a bar to reproduce the Type II profile is also a realistic model. We further find that the halo must have a cuspy profile with gamma > 1; the bulge has a lower M/L than the disc, suggesting a star forming component in the centre of the galaxy; and the bulge, as expected for this late type galaxy, has a low Sersic index with n_b~1-2, suggesting a formation history dominated by secular evolution.
description: 57 pages, 22 figures, ApJ accepted. Minor changes made to match accepted article.
Data on single pulse fs laser induced submicron bubbles in the subsurface region of soda-lime glass
Creators: name: Lai, Shengying
name: Ehrhardt, Martin
name: Lorenz, Pierre
name: Lu, Jian
name: Han, Bing
name: Zimmer, Klaus
Publisher: name: Amsterdam [u.a.] : Elsevier
Year: 2020
Subjects: subject: Bubble
subject: Femtosecond laser
subject: Nonlinear absorption
subject: Single pulse
subject: Soda-lime glass
subject: Surface modification
subject: 570

description: Submicron bubble formation in the subsurface range of soda-lime glass is investigated. The bubbles are induced by single femtosecond laser pulse irradiation with the wavelength of λ = 775 nm, the pulse duration of tp = 150 fs and the laser beam diameter of ∼12 μm. The data shows the changes of the morphologies of the soda-lime glass after laser irradiation with different pulse energy. Moreover, the data shows the detail of the cross-section view of the bubble during the Focused ion beam (FIB) cutting. It is found that the bubbles can be formed in a rather narrow pulse energy range with the bubbles in the size of 300 nm ∼3 μm which is much smaller than the laser beam diameter. Data presented in this article are related to the research article “Submicron bubbles/voids formation in the subsurface region of soda-lime glass by single pulse fs laser-induced spallation” [1]. © 2020
title: A Town Library in Action (A Study of the Town Library as a Social Institution in Richmond, Utah, March 1939)
Creators: name: McCarrey, Rulon S.
Publisher: name: Utah State University
Year: 1941

description: Richmond lies on a rise of ground near the Wasatch range in the east central part of Cache Valley. In 1855 John Bair led a small party to the vicinity of Richmond to explore it. Four years later (1859) they returned and established homes. The community grew quite rapidly. In 1860 when Jesse V. fox, territorial surveyor, made the first survey, 104 people claimed land. The first public building was a combination church and school house. A ditch connected with High Creek was built in q860. In 1868 the village was incorporated with W. D. Hendricks as the first mayor.
title: Zinc Relationships of Some Utah Soils
Creators: name: Laws, Wilford Derby
Publisher: name: Utah State University
Year: 1941

description: Recent reports from many parts of the United States indicate that the so- called zinc - deficiency disease is wide spread. It affects some varieties of trees in some areas and all varieties in other areas, and occurs from Florida westward to the Pacific coast and northward to the Canadian line. Although the disease is more prevalent in trees, it is also known to affect annual plants.
title: A Management Study of the Idaho-Utah Interstate Deer Herd With Special Reference to the Sublett, Black Pine, and East Raft River Mountain Unit
Creators: name: Diem, Kenneth L.
Publisher: name: Utah State University
Year: 1952

description: Extensive deer migrations have been observed for many, years in western mountain regions. More recently several complex interstate migrations have become the objects of careful study and the subjects of special wildlife movement programs. The interstate deer migrations between the Sublett-Black Pine, Idaho, areas and the East Raft River Mountain, Utah, area are not exceptional. These migrations are now of such a magnitude that they are creating management problems of increasing importance to the 2 states involved.
title: Statistical Properties and Problems in Modeling the Bolivian Foreign Exchange Market
Creators: name: Barja, Gover
Publisher: name: Utah State University
Year: 1994

description: The Bolivian foreign exchange market is explained in terms of the official and parallel exchange rates. The data covers the post hyper inflationary period from 1986 to 1992. The distribution of the rate of depreciation of the official and parallel exchange rates is long tailed and strongly departs from normality due to the existence of outliers. A market interactions model of the autoregressive kind is estimated using robust regression. This procedure produces M-parameter estimates using iteratively reweighted least squares. The robust method handles well the outlier problem and at the same time it reveals the true nature of the statistical properties of the data by not being able to produce white noise in the squared residuals. Both markets show a one-time break in the variance creating two periods of differential behavior, with one of them having GARCH properties. Robust unit root and cointegration tests also fail to produce white noise squared residuals due to the same phenomena. Further research requires the development of a robust procedure that could take care of the outlier and heteroskedasticity problems simultaneously.
Controls on Southern Ocean phytoplankton production : a systems approach
Creators: name: Molina, E
Publisher: name: University Of Tasmania
Year: 2023

description: Plankton ecosystems play a significant part in the global cycle of carbon by contributing ~40% of total annual primary productivity. Changes are expected in response to warming, increased ocean stratification, altered supply of iron as a limiting micronutrient, and ecosystem structures. To diagnose these effects, numerical models of plankton ecology have become a key approach. This thesis examines the Nutrient Phytoplankton Zooplankton Detritus (NPZD) ecosystem model of Oschlies & Garcon [1999], and especially the modifications required to simulate phytoplankton biomass in naturally iron-fertilized Southern Ocean waters. This provides perspectives on the sensitivity of Southern Ocean ecosystems to global change. The NPZD model was used to simulate the phytoplankton bloom that forms in natural iron-fertilized waters of the Kerguelen plateau and adjacent High Nutrient Low Chlorophyll (HNLC) waters. Sensitivity to mixed layer depth and temperature was found to be negligible in comparison to zooplankton grazing, which also strongly modulated the ability of increased iron availability to affect biomass via phytoplankton growth rates. Direct comparison with satellite chlorophyll estimates showed that the base model could not achieve chlorophyll concentrations greater than ~0.6 mg m\\(^{-3}\\), in comparison to the ~2.7 mg m\\(^{-3}\\) of chlorophyll observed in the Kerguelen bloom. Incorporating an indirect simulation of iron-fertilization provided only a small improvement. An increase in zooplankton grazing (by a factor of 7) was required to achieve the high peak bloom biomass. To match the seasonal cycle and both summer maximum and winter minimum biomass concentrations, it was also necessary to impose seasonal cycles in key photosynthetic parameters (˜í¬± - initial slope of the photosynthesis/irradiance curve, and ˜í¬¿\\(_{max}\\) - maximal growth rate). The same model was used to examine the response of plankton ecosystems to temporary iron fertilizations. The model was able to simulate the phase and amplitude patterns of the SOIREE bloom in Antarctic waters, given increases in ˜í¬± and ˜í¬¿max similar to those observed in the field (a factor of 2.5 over 13 days). Simulating a series of SOIREE-like experiments at different times of the seasonal cycle showed that while blooms induced in spring resulted in high surface chlorophyll levels, only blooms induced in summer resulted in both high chlorophyll and high potential carbon export. These findings also emphasized the importance of low overwintering biomass of phytoplankton and zooplankton to the spring biomass peak. Expanding the simulations to all latitudes of the Southern Ocean revealed distinct variations in the intensity of responses to iron fertilization, and suggested that the optimal time and location for iron fertilization in terms of potential carbon export is early summer in the Subantarctic zone.
Proton and neutron electromagnetic radii and magnetic moments from lattice QCD
Creators: name: Salg, Miguel
name: Djukanovic, Dalibor
name: von Hippel, Georg
name: Meyer, Harvey B.
name: Ottnad, Konstantin
name: Wittig, Hartmut
Publisher: name: arXiv
Year: 2024
Subjects: subject: High Energy Physics - Lattice (hep-lat)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: We present results for the electromagnetic form factors of the proton and neutron computed on the $(2 + 1)$-flavor Coordinated Lattice Simulations (CLS) ensembles including both quark-connected and -disconnected contributions. The $Q^2$-, pion-mass, lattice-spacing, and finite-volume dependence of our form factor data is fitted simultaneously to the expressions resulting from covariant chiral perturbation theory including vector mesons amended by models for lattice artefacts. From these fits, we determine the electric and magnetic radii and the magnetic moments of the proton and neutron, as well as the Zemach radius of the proton. To assess the influence of systematic effects, we average over various cuts in the pion mass and the momentum transfer, as well as over different models for the lattice-spacing and finite-volume dependence, using weights derived from the Akaike Information Criterion (AIC).
description: 7 pages, 3 figures, contribution to the 16th International Conference on Meson-Nucleon Physics and the Structure of the Nucleon (MENU 2023), October 15th-20th, 2023, Mainz, Germany. arXiv admin note: substantial text overlap with arXiv:2401.05404
Artifacts for "Automating Cookie Consent and GDPR Violation Detection"
Creators: name: Bollinger, Dino
name: Kubicek, Karel
name: Cotrini, Carlos
name: Basin, David
Publisher: name: Zenodo
Year: 2021
Subjects: Privacy
Browser Cookies
Cookies
GDPR
Machine Learning Security

description: This package was created for the 31st USENIX Security Symposium Artifact submission and contains three files: README.md : A step-by-step guide on how to reproduce and replicate the results of the paper "Automating Cookie Consent and GDPR Violation Detection". USENIX Security '22 - Automating Cookie Consent.ova : A virtual machine image providing all components used in the paper as a single package, and which has all dependencies installed. Allows the user to reproduce the results with no setup required. datasets.zip : Optional package, contains the databases, tables, log files and other reports detailing the results of the GDPR Violation Detection and the Cookie Consent classifier. Update: Fixed problems with the VM, and updated the README.
title: The Effects of Osmotic Potential on Ammonification, Immobilization, Nitrous Oxide Production, and Nitrification Rates in Penoyer Soil
Creators: name: Low, Andrew P.
Publisher: name: Utah State University
Year: 1996

description: An isotopic dilution method was used to test the effects of osmotic potential, (IJ' ,), upon nitrification, ammonification, N-immobilization, and nitrous oxide production rates in soil at solute concentrations encountered in Penoyer soil. A nitrification potential assay was also performed to approximate maximum nitrification rates.
Nitrification potential rates in soil slurries exponentially declined in response to decreased osmotic potential. However, nitrification was independent of salt concentration at the ambient NIL+ concentrations of the soil. The differential response was attributed to the variable NIL+ substrate quantities. The effects of osmotic potential were secondary to NIL+ substrate levels in controlling nitrification rates. Ammonification rates declined exponentially as a function of decreased osmotic potential; however, the 33% reductions in ammonification rates were restricted to a range of osmotic potentials between 0 and -500 kPa. Ammonification rates were independent of osmotic potential at potentials between -500 and -1800 kPa. Immobilization rates of both NH/ and N03- declined exponentially as osmotic potential decreased. Absolute rates ofN03- immobilization exceeded those of N~ • by a factor of 4, indicating that under N~+ limited conditions, substantial N03- assimilation occurred. However, the generalization that N~ + is the preferred N source was in fact supported by the data, where immobilization rates relative to the respective pool sizes clearly favored NH4 + assimilation. Nitrous oxide production rates increased linearly as osmotic potential decreased. An NH4 + dependence indicated the evolved N20 was derived from nitrification rather than denitrification.
Demand response eXchange in a deregulated environment
Creators: name: Nguyen, DT
Publisher: name: University Of Tasmania
Year: 2023

description: This thesis presents the development of a new and separate market for trading Demand Response (DR) in a deregulated power system. This market is termed Demand Response eXchange (DRX), in which DR in the form of hourly load reduction is considered a product to be negotiated between two groups of market participants, namely buyers and sellers. DR buyers, including all transmission companies (Transcos), distribution companies (Discos), and retail companies (Recos) need DR for their risk management benefits related to, for instance, transmission and distribution network security, and electricity market volatility. Sellers, including all Energy Service Companies (ESCos), are capable of significantly modifying electricity customers demand to supply DR on request. The trading between these sellers and buyers is settled by a new system operator termed DRX operator (DRXO). Two alternative market clearing schemes, namely pool-based and agent-based, are developed as the ground technical mechanism of a DRX. In the former scheme, all sellers and buyers are required to submit offers and bids reflecting their marginal costs and benefits, respectively, derived from a set of DR quantities. Based on this collected information, the DRXO will clear the market by centrally maximizing the total benefit for all participants under some economic constraints, i.e., demand-supply balance. In the other hand, in an agent-based scheme the participants are viewed as economic agents that behaves in a self-interested manner. The scheme will be designed to constrain each agent to ensure optimal global efficiency, while also allowing agents to maximize their own profits locally. In order to evaluate these DRX schemes, we develop a comprehensive assessment framework using certain economic valuation methodologies such as cost-benefit analysis and externalities treatment. Firstly, DR cost and benefit for each pariticipant in the market (i.e., buyers and sellers) are analysed in detail. Based on this local analysis, a global evaluation is performed to determine whether the optimized DR can give a positive social surplus. If so, the DR will be dispatched during the hour under consideration. Using this newly developed assessment framework, we demonstrate the advantages of DRX over conventional DR trading/scheduling schemes. Throughout the thesis, both analytical proofs and numerical examples are provided to substantiate the advantages of the proposed DRX schemes. Our formulations rely on a wide range of theories: demand{supply modeling with a competitive market equilibrium, cost-benefit analysis, spot pricing of electricity, and network reliability assessment. Numerical simulations are performed on various test systems, including the Roy Billinton Test System (RBTS), to illustrate the effectiveness of DRX in analysing and optimizating DR benefits.
Mining the Galactic Halo for Very Metal-Poor Stars
Creators: name: Salvadori, S.
name: Ferrara, A.
name: Schneider, R.
name: Scannapieco, E.
name: Kawata, D.
Publisher: name: arXiv
Year: 2009
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: We study the age and metallicity distribution function (MDF) of metal-poor stars in the Milky Way halo as a function of galactocentric radius by combining N-body simulations and semi-analytical methods. We find that the oldest stars populate the innermost region, while extremely metal-poor stars are more concentrated within r < 60 kpc. The MDF of [Fe/H] < -2 stars varies only very weakly within the central 50 kpc, while the relative contribution of [Fe/H] < -2 stars strongly increases with r, varying from 16% within 7 kpc < r < 20 kpc up to > 40% for r > 20 kpc. This is due to the faster descent of the spatial distribution (as seen from Earth) of the more enriched population. This implies that the outer halo < 40 kpc is the best region to search for very metal-poor stars. Beyond ~ 60 kpc the density of [Fe/H] < -2 stars is maximum within dwarf galaxies. All these features are imprinted by a combination of (i) the virialization epoch of the star-forming haloes, and (ii) the metal enrichment history of the Milky Way environment.
description: published in MNRAS letter
Kinematic Analysis of a Serial - Parallel Machine Tool: the VERNE machine
Creators: name: Kanaan, Daniel
name: Wenger, Philippe
name: Chablat, Damien
Publisher: name: arXiv
Year: 2008
Subjects: subject: Robotics (cs.RO)
subject: FOS: Computer and information sciences

description: The paper derives the inverse and the forward kinematic equations of a serial - parallel 5-axis machine tool: the VERNE machine. This machine is composed of a three-degree-of-freedom (DOF) parallel module and a two-DOF serial tilting table. The parallel module consists of a moving platform that is connected to a fixed base by three non-identical legs. These legs are connected in a way that the combined effects of the three legs lead to an over-constrained mechanism with complex motion. This motion is defined as a simultaneous combination of rotation and translation. In this paper we propose symbolical methods that able to calculate all kinematic solutions and identify the acceptable one by adding analytical constraint on the disposition of legs of the parallel module.
Additional file 1: of Histone hypo-acetylation of Sox9 mediates nicotine-induced weak cartilage repair by suppressing BMSC chondrogenic differentiation
Creators: name: Tie, Kai
name: Wu, Min
name: Deng, Yu
name: Wen, Yinxian
name: Dan Xu
name: Chen, Liaobin
name: Wang, Hui
Publisher: name: figshare
Year: 2019
Subjects: subject: Space Science
subject: Medicine
subject: Cell Biology
subject: Genetics
subject: FOS: Biological sciences
subject: Molecular Biology
subject: Pharmacology
subject: Ecology
subject: Sociology
subject: FOS: Sociology
subject: Biological Sciences not elsewhere classified
subject: Developmental Biology
subject: Marine Biology

description: Macroscopic observation of cartilage defect with no treatment and alginate transplantation in a rat model after 12 weeks. a Cartilage defect with no treatment. b Cartilage defect with alginate only. (DOCX 413Â kb)
The CPT and Bisognano-Wichmann Theorems for Anyons and Plektons in d=2+1
Creators: name: Mund, Jens
Publisher: name: arXiv
Year: 2009
Subjects: subject: Mathematical Physics (math-ph)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences
subject: 81T05

description: We prove the Bisognano-Wichmann and CPT theorems for massive particles obeying braid group statistics in three-dimensional Minkowski space. We start from first principles of local relativistic quantum theory, assuming Poincare covariance and asymptotic completeness. The particle masses must be isolated points in the mass spectra of the corresponding charged sectors, and may only be finitely degenerate.
description: 35 pages, 2 figures. References added; minor re-organization
title: A Study of the Physical Education Facilities and Programs in Three Southern Utah High Schools
Creators: name: Slater, Floyd Harrison
Publisher: name: Utah State University
Year: 1941

description: In the field of physical education there has been formulated by leading physical education authorities an ideal program for use· in high schools, but this program cannot always be used in our high schools because of certain problems that are always present. However, we can adopt the ideal program and modify it to fit any situation that may arise in the various schools. The physical education program is an unstatic program. It is always changing with the changing philosophy of physical education.
Rank Two ADHM Invariants and Wallcrossing
Creators: name: Chuang, Wu-yen
name: Diaconescu, Duiliu-Emanuel
name: Pan, Guang
Publisher: name: arXiv
Year: 2010
Subjects: subject: Algebraic Geometry (math.AG)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Mathematics
subject: FOS: Physical sciences

description: Generalized Donaldson-Thomas invariants corresponding to local D6-D2-D0 configurations are defined applying the formalism of Joyce and Song to ADHM sheaves on curves. A wallcrossing formula for invariants of D6-rank two is proven and shown to agree with the wallcrossing formula of Kontsevich and Soibelman. Using this result, the asymptotic D6-rank two invariants of (-1,-1) and (0,-2) local rational curves are computed in terms of the D6-rank one invariants.
description: 27 pages, AMS LaTex; ver2: minor changes.
Additional file 6 of CT-based deep learning model for the prediction of DNA mismatch repair deficient colorectal cancer: a diagnostic study
Creators: name: Cao, Wuteng
name: Hu, Huabin
name: Guo, Jirui
name: Qin, Qiyuan
name: Lian, Yanbang
name: Li, Jiao
name: Wu, Qianyu
name: Chen, Junhong
name: Wang, Xinhua
name: Deng, Yanhong
Publisher: name: figshare
Year: 2023
Subjects: Space Science
Medicine
Biotechnology
Biological Sciences not elsewhere classified
Information Systems not elsewhere classified

description: Additional file 6. The results of subgroups analyses.
Three-particle correlation from glasma flux tubes
Creators: name: Dusling, Kevin
name: Fernandez-Fraile, Daniel
name: Venugopalan, Raju
Publisher: name: arXiv
Year: 2009
Subjects: subject: Nuclear Theory (nucl-th)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: Nuclear Experiment (nucl-ex)
subject: FOS: Physical sciences

description: We compute three particle correlations in the Glasma flux tube model of high energy heavy ion collisions. We obtain a simple geometrical picture of these correlations; when convoluted with final state radial flow, it results in distinct predictions for the near side three particle correlation in central heavy ion collisions.
description: fixed typos and corrected some erroneous factors of 2 and 2\pi
Changing Teacher's Teaching Behavior to Improve Classroom Teaching Effectiveness Through ODI [Organization Development Interventions] An Action Research at College of International Business (CIB), in Zhejiang Yuexiu University of Foreign Languages (ZYUFL), in China
Creators: name: Manying Wang
Publisher: name: Assumption University
Year: 2021
Subjects: teaching behavior
teaching effectiveness
intervention
organization development

description: ABAC ODI JOURNAL VISION. ACTION. OUTCOME, 8, 1, 1-24
RR Lyrae stars and the Blazhko effect
Creators: name: Lipka, R
Publisher: name: University Of Tasmania
Year: 2023

description: A survey of RR Lyrae stars in the observations of the PLANET collaboration between the years 1995 and 2005 is presented. An exhaustive search of the data has identified 87 RR Lyrae stars and 10 of them exhibit a detectable Blazhko modulation. Lightcurves of the stars are produced through combining data from all the telescopes contributing to PLANET and the stars are well described in a catalogue format. Attempts to constrain models for the Blazhko effect lead to a comparison of the PLANET data to OGLE microlensing survey observations. It is established that the methods used for identifying the RR Lyrae stars in the PLANET data produce a complete detection of these stars in the areas that were observed. Further, the use of the OGLE data produced results supporting magnetic models for the Blazhko effect. New equidistant frequency quintuplets have been discovered in the lightcurves of two Blazhko stars. Such frequency quintuplets are a requirement of the magnetic models attempting to explain the Blazhko effect. The Blazhko effect has remained unexplained for over 100 years and represents a well known and persistent puzzle in variable star research. Competing models for explaining this effect have been developed but all lack conclusive support from observations. In recent years only six other detections of a frequency quintuplet in a Blazhko star have been published (Hurta et al 2008, Jurcsik et al 2008, Kolenberg et al 2009, Jurcsik et al 2009, Chadid et al 2010, Kolenberg et al 2011). This work provides additional support for the magnetic model explanation of the Blazhko effect by showing that frequency quintuplets in Blazhko stars are relatively common and are not an analysis or data artefact. Error and significance analysis shows that the detected frequency quintuplets have small amplitudes but are significant and occur very close to the positions required by the magnetic models. It is shown that the previous absence of frequency quintuplet detections in Blazhko stars was most likely caused by the lack of data suitable for their detection and this has affected the explanation of the Blazhko effect. It can no longer be said that the absence of frequency quintuplets in Blazhko stars is an inconsistency with the magnetic models. Results supporting these theses are given and specific future research is described that in combination with the detection of frequency quintuplets should further constrain which models for the Blazhko effect best agree with observations.
A Bayesian Rule for Adaptive Control based on Causal Interventions
Creators: name: Ortega, Pedro A.
name: Braun, Daniel A.
Publisher: name: arXiv
Year: 2009
Subjects: subject: Artificial Intelligence (cs.AI)
subject: Machine Learning (cs.LG)
subject: FOS: Computer and information sciences

description: Explaining adaptive behavior is a central problem in artificial intelligence research. Here we formalize adaptive agents as mixture distributions over sequences of inputs and outputs (I/O). Each distribution of the mixture constitutes a `possible world', but the agent does not know which of the possible worlds it is actually facing. The problem is to adapt the I/O stream in a way that is compatible with the true world. A natural measure of adaptation can be obtained by the Kullback-Leibler (KL) divergence between the I/O distribution of the true world and the I/O distribution expected by the agent that is uncertain about possible worlds. In the case of pure input streams, the Bayesian mixture provides a well-known solution for this problem. We show, however, that in the case of I/O streams this solution breaks down, because outputs are issued by the agent itself and require a different probabilistic syntax as provided by intervention calculus. Based on this calculus, we obtain a Bayesian control rule that allows modeling adaptive behavior with mixture distributions over I/O streams. This rule might allow for a novel approach to adaptive control based on a minimum KL-principle.
description: AGI-2010. 6 pages, 2 figures