cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
title: Molecular Toxicology of Pyrrolizidine Alkaloids
Creators: name: Kim, Hea-Young
Publisher: name: Utah State University
Year: 1994

description: Pyrrolizidine alkaloids are cytotoxic, carcinogenic, and anti-carcinogenic in vivo and in vitro, and they produce many hazardous effects in humans and animals. Pyrrolizidine alkaloids (PAs) also cross-link with DNA and/or protein. However, whether such cross-linking is important to the toxic action of PAs is not known. In addition, the exact mechanism underlying these DNA cross-links or cytotoxicity is also not clear.
In three separate studies, I characterized the nature of PA-induced DNA cross-links and the relationships between PA structures and cross-linking potency. In the first study (Chapter II), I found that cross-linking potency of PA congeners coincided with their abilities to cause cytopathologic effects. Macrocyclic a,p-unsaturated diesters PAs and their pyrrolic metabolites were the most potent inhibitors of colony formation, and inducers of cytopathologic changes and megalocyte formation. The macrocyclic α, β-saturated diester PA and open diesters PAs slightly inhibited colony formation, and slightly changed cell morphology. Retronecine and indicine N-oxide were completely inactive. In the next study (Chapter Ill), I found that pyrrolic macrocyclic metabolites were more potent DNA cross-linkers than their parent compounds as determined by alkaline elution. The pyrroles of the macrocyclic diester PAs were potent DNADNA (inter- and/or intra) cross-linkers in BstEll-digested λ-phage DNA or pBR322 plasmid DNA but dehydroretronecine and indicine N-oxide were not. I also examined which DNA sequences were more susceptible to PA-induced cross-links by using a series of restriction endonucleases to determine sequence specificity. The most favorable cross-linking site for PAs appeared to be 5'd(GG) and 5'-d(GA) although other sites, 5'-d(CC) or 5'-d(CG), might be also preferable cross-linking targets. In the next study (Chapter IV), I characterized the nature of DNA-protein interactions induced by PAs, because I found in previous studies that PA-induced cross-links are largely protein associated. In PA or pyrrolic PA exposed cells, cross-linked proteins with molecular weights 40 - 60 kD were detected. Two-dimensional electrophoretic analysis revealed that these proteins were probably acidic in nature. In an in vitro system utilizing pBR322 or Bst Ell-digested λ-phage DNA. dehydrosenecionine induced DNAprotein cross-links with BSA, indicating that such interactions might be related to amino acid composition of protein.
These results confirmed that PA-induced DNA cross-links (DNA-DNA, DNA-protein cross-links) are influenced by three structural features: the C1 ,2 unsaturation of pyrrolizidine ring, α, β-unsaturation, and size of the macrocyclic diester ring. The ability to form cross-links was closely related to the known toxic potencies of these PAs. From this research, I also conclude that DNA crosslinking is the most critical event leading to PA-related diseases and that crosslinking is due to pyrrolic metabolites of PAs, not via a common metabolite as was once thought.
Six magnetization plateau phases in a spin-1/2 distorted kagome antiferromagnet: application to $\rm{Y}_3\rm{Cu}_9(\rm{OH})_{19}\rm{Cl}_8$
Creators: name: Bodaiji, Kazu
name: Morita, Katsuhiro
name: Fukumoto, Yoshiyuki
Publisher: name: arXiv
Year: 2024
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: A recently discovered kagome antiferromagnet $\rm{Y}_3\rm{Cu}_9(\rm{OH})_{19}\rm{Cl}_8$ has attracted significant interest due to its unique kagome lattice structure and magnetic properties. The kagome lattice has three types of exchange interactions: one hexagonal coupling and two different triangular couplings. Previous studies have shown that its ground state is significantly different from that predicted for the undistorted kagome lattice, forming a coplanar spin state with a commensurate magnetic wave vector ${\mathbf Q}=(1/3,1/3)$.
 Two separate studies have proposed distinct sets of exchange interaction parameters for this compound.
 In this study, we investigate the ground state of the spin-1/2 Heisenberg kagome model with three types of nearest-neighbor exchange interactions under a magnetic field by exact diagonalization using the Lanczos method. We reveal that clear magnetization plateaus at $M/M_{\rm sat}$=1/3, 5/9, and 7/9 are present under both parameter sets, which are identified as magnon crystal states based on their spin structures.
 Our findings suggest that these plateaus could potentially be experimentally confirmed with magnetization measurements on $\rm{Y}_3\rm{Cu}_9(\rm{OH})_{19}\rm{Cl}_8$ under a magnetic field of approximately 300 T, achievable with state-of-the-art magnetic field generators. In order to get a deeper understanding of magnetism of $\rm{Y}_3\rm{Cu}_9(\rm{OH})_{19}\rm{Cl}_8$, we perform additional calculations by varying these interactions. Consequently, we discover additional plateau phases at $M/M_{\rm sat}$=1/3, 5/9, and 7/9, each distinctly different from the magnon crystal states.
description: Also made slight changes to the title
Exterior optical cloaking and illusions by using active sources: a boundary element perspective
Creators: name: Zheng, H. H.
name: Xiao, J. J.
name: Lai, Y.
name: Chan, C. T.
Publisher: name: arXiv
Year: 2009
Subjects: subject: Optics (physics.optics)
subject: General Physics (physics.gen-ph)
subject: FOS: Physical sciences

description: Recently, it was demonstrated that active sources can be used to cloak any objects that lie outside the cloaking devices [Phys. Rev. Lett. \textbf{103}, 073901 (2009)]. Here, we propose that active sources can create illusion effects, so that an object outside the cloaking device can be made to look like another object. invisibility is a special case in which the concealed object is transformed to a volume of air. From a boundary element perspective, we show that active sources can create a nearly "silent" domain which can conceal any objects inside and at the same time make the whole system look like an illusion of our choice outside a virtual boundary. The boundary element method gives the fields and field gradients (which can be related to monopoles and dipoles) on continuous curves which define the boundary of the active devices. Both the cloaking and illusion effects are confirmed by numerical simulations.
title: Development of Fluorescent In Situ Hybridization Techniques for Physical Mapping in Ovis aries
Creators: name: Jenson, Eleanor P.
Publisher: name: Utah State University
Year: 1995

description: Genome maps provide information used to identify economic trait loci and loci proximal to genes affecting economically important traits. This research contributes to the development of the ovine genome map by establishing ovine tissue culture techniques and fluorescent in situ hybridization techniques in this laboratory. In addition, a karyotype for sheep affected with spider lamb syndrome was developed. Ovine tissue culture techniques were established using fibroblasts grown from primary explants of sheep and modified cytogenetic procedures. Metaphase chromosomes were obtained from the fibroblast cultures and used for fluorescent in situ hybridization and for banding procedures to develop the spider lamb karyotype. Fluorescent in situ hybridization procedures were established by hybridizing a fluorescent-labeled probe to fixed ovine chromosome spreads. The probe was a bacterial artificial chromosome clone containing the bovine 3-β-hydroxy-5-ene steroid dehydrogenase gene. In this study, the probe hybridized to ovine chromosome 1. This chromosomal location was supported by the previous hybridization of the probe to bovine chromosome 3, which has a high level of homology with ovine chromosome 1. The final objective of this study was to determine whether a chromosomal abnormality is the cause of spider lamb syndrome, a fatal autosomal recessive genetic disease in North American black-faced breeds of sheep. A fibroblast cell line was produced from a four-week-old male homozygous spider lamb. Chromosomes were banded with trypsin using standard structural banding techniques. The lamb had a normal diploid chromosomes, 23 pairs of autosomal acrocentrics, and a large acrocentric X and a minute biarmed Y chromosome. G-band analysis of all chromosomes within the karyotype did not reveal any abnormality that was attributable to spider lamb syndrome.
Radiative effects of the cloudy atmosphere from ground and satellite based observations
Creators: name: Macke, A.
name: Kalisch, J.
name: Zoll, Y.
name: Bumke, K.
Publisher: name: Les Ulis : EDP Sciences
Year: 2010
Subjects: subject: radiation
subject: surface observations
subject: satellite observations
subject: 550

description: The radiation budget from surface observations and parameterizations is combined with that from satellite observations along the cruise tracks of the German icebreaker POLARSTERN in the North and South Atlantic under tropical, subtropical and mid-latitude conditions. Between 2008 and 2010 The German Leibniz-network OCEANET participated in six transfers from or to Bremerhaven, Germany to or from Punta Arenas, Southern Chile or Cape Town, South Africa. The present chapter introduces exemplarily the atmospheric measurements and resulting radiation products. The following properties are derived: Standard meteorological data, broadband downward solar and thermal irradiances, underwater profiles of spectral irradiance, latent and sensible heat fluxes, humidity and temperature profiles, water vapour and liquid water path, aerosol optical thickness and vertical profiles of aerosol optical thickness, cloud cover and cloud type. Cloud radiative effects at the surface have been determined for different marine cloud types. Together with top-of-atmosphere radiation fluxes from the SEVIRI radiometer onboard METEOSAT, the effect of clouds on atmospheric heating or cooling have been determined. The resulting cloud/radiation correlations will help to quantify the effects of clouds on the surface, ToA- and atmospheric radiation budget and to evaluate the ability of climate models to simulate these effects. © Owned by the authors, published by EDP Sciences, 2010.
Neutral oxygen spectral line formation revisited with new collisional data: large departures from LTE at low metallicity
Creators: name: Fabbian, D.
name: Asplund, M.
name: Barklem, P. S.
name: Carlsson, M.
name: Kiselman, D.
Publisher: name: arXiv
Year: 2009
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: We present a detailed study of the non-Local Thermodynamic Equilibrium (non-LTE) formation of the high-excitation neutral oxygen 777 nm triplet in MARCS model atmospheres representative of late-type stars with spectral types F to K. We carried out the calculations using the statistical equilibrium code MULTI, including estimates of the impact on elemental abundance analysis. The atomic model employed includes, in particular, recent quantum-mechanical electron collision data. We confirm that the O I triplet lines form under non-LTE conditions in late-type stars, suffering negative abundance corrections with respect to LTE. At low metallicity, large line opacity stems from triplet-quintet intersystem electron collisions, a form of coupling previously not considered or seriously underestimated. The non-LTE effects become generally severe for models (both giants and dwarfs) with higher T_eff. Interestingly, in metal-poor turn-off stars, the negative non-LTE abundance corrections tend to rapidly become more severe towards lower metallicity. When neglecting H collisions, they amount to as much as ~ 0.9 dex and ~ 1.2 dex, respectively at [Fe/H]=-3 and [Fe/H]=-3.5. Even when such collisions are included, the LTE abundance remains a serious overestimate, correspondingly by ~ 0.5 dex and ~ 0.9 dex at such low metallicities. Although the poorly known inelastic hydrogen collisions thus remain an important uncertainty, the large metallicity-dependent non-LTE effects seem to point to a resulting "low" (compared to LTE) [O/Fe] in metal-poor halo stars.
description: 19 pages, 10 figures, aa.cls v6.1 included. Accepted for publication in A&A
EvaNet: Elevation-Guided Flood Extent Mapping on Earth Imagery (Extended Version)
Creators: name: Sami, Mirza Tanzim
name: Yan, Da
name: Adhikari, Saugat
name: Yuan, Lyuheng
name: Han, Jiao
name: Jiang, Zhe
name: Khalil, Jalal
name: Zhou, Yang
Publisher: name: arXiv
Year: 2024
Subjects: subject: Computer Vision and Pattern Recognition (cs.CV)
subject: Image and Video Processing (eess.IV)
subject: FOS: Computer and information sciences
subject: FOS: Electrical engineering, electronic engineering, information engineering

description: Accurate and timely mapping of flood extent from high-resolution satellite imagery plays a crucial role in disaster management such as damage assessment and relief activities. However, current state-of-the-art solutions are based on U-Net, which can-not segment the flood pixels accurately due to the ambiguous pixels (e.g., tree canopies, clouds) that prevent a direct judgement from only the spectral features. Thanks to the digital elevation model (DEM) data readily available from sources such as United States Geological Survey (USGS), this work explores the use of an elevation map to improve flood extent mapping. We propose, EvaNet, an elevation-guided segmentation model based on the encoder-decoder architecture with two novel techniques: (1) a loss function encoding the physical law of gravity that if a location is flooded (resp. dry), then its adjacent locations with a lower (resp. higher) elevation must also be flooded (resp. dry); (2) a new (de)convolution operation that integrates the elevation map by a location sensitive gating mechanism to regulate how much spectral features flow through adjacent layers. Extensive experiments show that EvaNet significantly outperforms the U-Net baselines, and works as a perfect drop-in replacement for U-Net in existing solutions to flood extent mapping.
description: Published at the International Joint Conference on Artificial Intelligence (IJCAI, 2024)
title: The Anatomical and Morphological Effects of DCPA on Seedlings of Selected Species of Plants
Creators: name: Shaybany, Bijan
Publisher: name: Utah State University
Year: 1969

description: Seeds of oat, green foxtail, squash and tomato were germinated in soil treated with different levels of DCPA (dimethyl 2, 3, 5, 6-tetrachlorote-rephthalate). The concentrations used varied according to the sensitivity of the plants to the chemical.
The response of oat and foxtail to DCPA was similar. The growth of booth root and shoot was reduced. This reduction was directly related to the concentration of DCPA. Anatomical studies showed that cells in the shoot and root meristems of treated plants were completely disarranged and that some of the cells of these regions were hypertrophied. Some clumping of nuclei was observed in oat shoot tip. Foxtail showed a stimulation of shoot growth at 2 ppm level of DCPA. In both grass species differentiation seemed to start nearer the apex in treated plants and was highly irregular. Histochemical tests showed that the amount of starch, proteins and nucleic acids decreased with an increase of DCPA concentration. The walls of shoot meristem cells were thickened. The size and number of chloroplasts were increased in the cells of first true leaves. Seeds of treated plants seemed to contain more starch and protein.
In squash, even though the shoot and root growth was reduced, no anatomical or histochemical differences could be observed except that the amount of starch in shoot meristems was slightly increased with increased concentrations of DCPA and that cotyledons of treated plants contained more starch and protein. These cotyledons also contained more and larger chloroplasts.
The cytogenetical studies failed to show any differences in the mitotic index of plants studied. No abnormal chromosome behavior was observed.
Electronic Structure of Hyperkagome Na4Ir3O8
Creators: name: Norman, M. R.
name: Micklitz, T.
Publisher: name: arXiv
Year: 2009
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: We investigate the electronic structure of the frustrated magnet Na4Ir3O8 using density functional theory. Due to strong spin-orbit coupling, the hyperkagome lattice is characterized by a half-filled complex of states, making it a cubic iridium analogue of the high temperature superconducting cuprates. The implications of our results for this unique material are discussed.
description: expanded discussion with extra figures - 6 pages, 10 figures
Additional file 1: of Epidemiological survey of echinococcosis in Tibet Autonomous Region of China
Creators: name: Li, Bin
name: Quzhen, Gongsang
name: Xue, Chui-Zhao
name: Han, Shuai
name: Chen, Wei-Qi
name: Yan, Xin-Liu
name: Li, Zhong-Jie
name: Quick, M.
name: Huang, Yong
name: Xiao, Ning
name: Wang, Ying
name: Wang, Li-Ying
name: Zuoga, Gesang
name: Bianba
name: Gangzhu
name: Ma, Bing-Cheng
name: Gasong
name: Wei, Xiao-Gang
name: Niji
name: Zheng, Can-Jun
name: Wu, Wei-Ping
name: Zhou, Xiao-Nong
Publisher: name: figshare
Year: 2019
Subjects: subject: Medicine
subject: Sociology
subject: FOS: Sociology
subject: Developmental Biology

description: Multilingual abstracts in the five official working languages of the United Nations. (PDF 204 kb)
title: The Effect of Nutrient Levels in Nutrient Cultures on the Translocation of Foliar Applied Nutrients
Creators: name: Neher, David D.
Publisher: name: Utah State University
Year: 1959

description: Since man first grew crops on calcareous soils he has probably been troubled with what we today call lime-induced chlorosis. This chlorosis has determined whether he grew certain desirable ornamentals or crops or whether he had to substitute others which were less desirable.
Lime-induced chlorosis is spread world wide. It has been reported in the vine and fruit growing regions of Europe, in the chernozem soils of Russia, and many other areas where the rainfall is relatively low and the soil is relatively high in calcium carbonate. In the United States it most frequently occurs where the average annual rainfall is less than 30 inches. The conditions causing chlorosis are not stable, for it varies from year to year and even from week to week with changing conditions in climate and soil.
An estimated 500,000 acres of crops grown in the western United States on calcareous soils are subject to moderate to severe chlorosis. This physiological malady has challenged the technical ingenuity of outstanding plant and soil scientists. The exact cause or causes have never been isolated; consequently no permanent preventative measures or cures can, as yet, be recommended.
title: Absorption of C14 Labeled Sucrose by Nectaries
Creators: name: LeFevre, Cecil Wright
Publisher: name: Utah State University
Year: 1958

description: Since the early Eighteenth Century the significance of nectar secretion has been debated. Some have reasoned that it is reabsorbed into the plant and used as energy for the developing embryo while others believe it is a waste product which attracts pollinating insects.
It has been suggested (Brink and Cooper, 1947) that the nutrient supply to developing ovules is a major factor in the development of seed. Also, alfalfa fields pollinated by pollen-collecting bees produce greater seed yields than those pollinated by nectar collectors (Bohart, Nye, and Levin, 1955). It is a well-known fact that more flowers are tripped by the pollen collectors, but it is debatable whether the nectar not taken by the pollinators has any influence on the quality or amount of seed set. It is then necessary to find whether the nectar not taken by bees is used by the plant before studies can be made to show its effect on seed and forage yields.
The object of this study was to treat flowers of several families with C14 labeled sucrose and determine by the use of autoradiograms if sugars can be absorbed by nectaries, where the sugars are translocated, and when absorption takes place.
Demonstration of atomic frequency comb memory for light with spin-wave storage
Creators: name: Afzelius, Mikael
name: Usmani, Imam
name: Amari, Atia
name: Lauritzen, Björn
name: Walther, Andreas
name: Simon, Christoph
name: Sangouard, Nicolas
name: Minář, Jiří
name: de Riedmatten, Hugues
name: Gisin, Nicolas
name: Kröll, Stefan
Publisher: name: arXiv
Year: 2009
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We present a light-storage experiment in a praseodymium-doped crystal where the light is mapped onto an inhomogeneously broadened optical transition shaped into an atomic frequency comb. After absorption of the light the optical excitation is converted into a spin-wave excitation by a control pulse. A second control pulse reads the memory (on-demand) by reconverting the spin-wave excitation to an optical one, where the comb structure causes a photon-echo type rephasing of the dipole moments and directional retrieval of the light. This combination of photon echo and spin-wave storage allows us to store sub-microsecond (450ns) pulses for up to 20 microseconds. The scheme has a high potential for storing multiple temporal modes in the single photon regime, which is an important resource for future long-distance quantum communication based on quantum repeaters.
description: Final version. 4 pages, 5 figures
ESMARConf2021 Session 4B - Data Viz (livestream)
Creators: name: Grainger, Matthew
name: Haddaway, Neal
name: Hennessy, Emily A.
name: Keenan, Ciara
name: McGuinness, Luke
name: Westgate, Martin
Publisher: name: figshare
Year: 2021
Subjects: Uncategorized

description: Presenter: Aaron Conway Title: Using the flextable package to create graphical summaries of study characteristics in systematic reviews Presenter: Luke McGuinness Title: "On the shoulders of giants": advantages and challenges to building on established evidence synthesis packages, using the {robvis} package as a case study Presenter: Alexander Fonseca Martinez Title: An Interactive forest plot for visualizing risk of bias assessment Presenter: Charles Gray Title: Structuring data for systematic review: towards a future of open and interoperable analyses Presenter: Andrew Feierman Title: EviAtlas – tool for producing visuals from evidence synthesis data Presenter: Ciara Keenan Title: evimappr an R package for producing interactive bubble plots of evidence The speakers take part in a panel discussion Facilitator: Luke McGuinness
title: The Influence of Soil Moisture Regimes and Atmospheric Environments on transpiration and the Energy Status of Water in Plants
Creators: name: Gavande, Sampatrao A.
Publisher: name: Utah State University
Year: 1966

description: Plant responses to different soil moisture regimes have been extensively studied. Because of interactions between the soil, plant and climatic factors, few convincing generalizations concerning the influence of soil water on the transpiration of water by plants have been established. Generally single factors or at most the interaction of two have been studied at any one time. Useful theories describing the conditions of water retention in plant tissues and movement of water through plants have been proposed. Equally useful theories have been suggested for describing the retention and transmission of water in soil. The integration of these theories and their applications to evapotranspiration remains to be elucidated. This indicates a need for studying the total free energy path that causes water transport from soil to atmosphere through plants.
Two interrelated categories of processes or factors, atmospheric desiccation and rate of soil water uptake, need to be studied simultaneously. The energy status of plant water, herein called total plant water potential, in conjugation with soil water potential appears to be critically involved in the process of water transfer through the soil-plant-atmosphere system. Plant water potential is the best criterion for detecting the degree of plant water stress.
By studying water retention and flow properties of both plants and the supporting soil, one may be able to find relations that will help to predict the behavior of plants as they remove water from soil. For example, water retention characteristics of drought resistant plants may suggest reasons why some desert plants survive desiccating conditions that cause death to more succulent plant species.
The major objective of this study was to investigate the influence of soil water potential and atmospheric environment on both the transpiration rates and components of the plant water potential.
J/psi polarization from fixed-target to collider energies
Creators: name: Faccioli, Pietro
name: Lourenco, Carlos
name: Seixas, Joao
name: Woehri, Hermine
Publisher: name: arXiv
Year: 2009
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: The determination of the magnitude and "sign" of the J/psi polarization crucially depends on the reference frame used in the analysis of the data and a full understanding of the polarization phenomenon requires measurements reported in two "orthogonal" frames, such as the Collins-Soper and helicity frames. Moreover, the azimuthal anisotropy can be, in certain frames, as significant as the polar one. The seemingly contradictory J/psi polarization results reported by E866, HERA-B and CDF can be consistently described assuming that the most suitable axis for the measurement is along the direction of the relative motion of the colliding partons, and that directly produced J/psi's are longitudinally polarized at low momentum and transversely polarized at high momentum. We make specific predictions that can be tested on existing CDF data and by LHC measurements, which should show a full transverse polarization for direct J/psi mesons of pT > 25 GeV/c.
Charmed baryon Sigmac(2800) as a ND hadronic molecule
Creators: name: Dong, Yubing
name: Faessler, Amand
name: Gutsche, Thomas
name: Lyubovitskij, Valery E.
Publisher: name: arXiv
Year: 2010
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: The isotriplet Sigmac(2800) baryon with possible quantum numbers J(P) = 1/2(+), 1/2(-) or 3/2(+), 3/2(-) is considered as a hadronic molecule composed of a nucleon and a D meson. We determine the strong two-body decay widths Sigmac to Lambdac + pi which are shown to be consistent with current data for the J(P) = 1/2(+) and J(P) = 3/2(-) assignments.
description: 8 pages, 2 figures
title: Bulk Hybridization of Smooth Bromegrass (Bromus Inermis)
Creators: name: Domingo, Wayne E.
Publisher: name: Utah State University
Year: 1940

description: Large populations of controlled hybrids are essential to the most rapid progress in many phases of plant breeding programs. Plant species vary in the ease with which they may be hybridized. Hand hybridization of forage grasses is usually slow and laborious, and the minuteness of the floral parts of most of the species which have perfect flowers renders their hybridization by hand especially difficult and tedious. This difficulty limits the use that forage grass breeders are making of the significant principles of hybridization and thereby retards progress in this phase of plant breeding. Any dependable, rapid technique of hybridization which would eliminate many of the present hand operations, that is "bulk" hybridization, would make possible more rapid progress in the breeding of forage grasses.
The study herein reported was designed to estimate the feasibility of applying various methods of bulk emasculation and bulk pollination to forage grasses. In limiting the scope of the study, smooth bromegrass (Bromus inermis) was selected to receive the greatest attention because of its importance among forage grasses and the wide range of self-fertility among individual plants of the species, a characteristic which proved very helpful in the study.
Australian Public Opinion Poll # 163
Creators: name: Australian Public Opinion Polls
Publisher: name: Roper Center for Public Opinion Research
Year: 2020

description: All-figure phone numbers (1); pensions (2); driving penalties (2); petrol tax (1); hotel closing time (2); federal election (2); future of Australia/New Zealand (1); decimal coins (3); American radio station in Australia (2); South Vietnam (1); border with Western New Guinea (1).
Some equivariant constructions in noncommutative algebraic geometry
Creators: name: Škoda, Zoran
Publisher: name: arXiv
Year: 2008
Subjects: subject: Algebraic Geometry (math.AG)
subject: Category Theory (math.CT)
subject: FOS: Mathematics
subject: 14A22; 16W30; 18D10

description: We here present rudiments of an approach to geometric actions in noncommutative algebraic geometry, based on geometrically admissible actions of monoidal categories. This generalizes the usual (co)module algebras over Hopf algebras which provide affine examples. We introduce a compatibility of monoidal actions and localizations which is a distributive law. There are satisfactory notions of equivariant objects, noncommutative fiber bundles and quotients in this setup.
description: 20 pages, surveys basics of my long term project; v2: major revision in all parts; last section on search for Leibniz groups has been omitted, but its improved version can be found on my webpage at http://www.irb.hr/korisnici/zskoda/leibnizManifesto.pdf
First Observation of Vector Boson Pairs in a Hadronic Final State at the Tevatron Collider
Creators: name: CDF Collaboration
name: Aaltonen, T.
Publisher: name: arXiv
Year: 2009
Subjects: subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: We present the first observation in hadronic collisions of the electroweak production of vector boson pairs (VV, V=W,Z) where one boson decays to a dijet final state . The data correspond to 3.5 inverse femtobarns of integrated luminosity of ppbar collisions at sqrt(s)=1.96 TeV collected by the CDFII detector at the Fermilab Tevatron. We observe 1516+/-239(stat)+/-144(syst) diboson candidate events and measure a cross section sigma(ppbar->VV+X) of 18.0+/-2.8(stat)+/-2.4(syst)+/-1.1(lumi) pb, in agreement with the expectations of the standard model.
description: Submitted to PRL
Many-body corrections to cyclotron resonance in monolayer and bilayer graphene
Creators: name: Shizuya, K.
Publisher: name: arXiv
Year: 2009
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: Cyclotron resonance in graphene is studied with focus on many-body corrections to the resonance energies, which evade Kohn's theorem. The genuine many-body corrections turn out to derive from vacuum polarization, specific to graphene, which diverges at short wavelengths. Special emphasis is placed on the need for renormalization, which allows one to determine many-body corrections uniquely from one resonance to another. For bilayer graphene, in particular, both intralayer and interlayer coupling strengths undergo infinite renormalization; as a result, the renormalized velocity and interlayer coupling strength run with the magnetic field. A comparison of theory with the experimental data is made for both monolayer and bilayer graphene.
description: 11 pages, 4 figures, revtex, references added, to appear in PRB
Newton and Bouligand derivatives of the scalar play and stop operator
Creators: name: Brokate, Martin
Publisher: name: Les Ulis : EDP Sciences
Year: 2020
Subjects: subject: Bouligand derivative
subject: Chain rule
subject: Hysteresis operator
subject: Maximum functional
subject: Measurable selector
subject: Newton derivative
subject: Play, stop
subject: Rate independence
subject: Semismooth
subject: Sensitivity
subject: Variational inequality
subject: 510

description: We prove that the play and the stop operator possess Newton and Bouligand derivatives, and exhibit formulas for those derivatives. The remainder estimate is given in a strengthened form, and a corresponding chain rule is developed. The construction of the Newton derivative ensures that the mappings involved are measurable. © The authors. Published by EDP Sciences, 2020.
Berry phase and fidelity susceptibility of the three-qubit Lipkin-Meshkov-Glick ground state
Creators: name: Sjöqvist, Erik
name: Rahaman, Ramij
name: Basu, Urna
name: Basu, B.
Publisher: name: arXiv
Year: 2009
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Berry phases and quantum fidelities for interacting spins have attracted considerable attention, in particular in relation to entanglement properties of spin systems and quantum phase transitions. These efforts mainly focus either on spin pairs or the thermodynamic infinite spin limit, while studies of the multipartite case of a finite number of spins are rare. Here, we analyze Berry phases and quantum fidelities of the energetic ground state of a Lipkin-Meshkov-Glick (LMG) model consisting of three spin-1/2 particles (qubits). We find explicit expressions for the Berry phase and fidelity susceptibility of the full system as well as the mixed state Berry phase and partial-state fidelity susceptibility of its one- and two-qubit subsystems. We demonstrate a realization of a nontrivial magnetic monopole structure associated with local, coordinated rotations of the three-qubit system around the external magnetic field.
description: The title of the paper has been changed in this version
title: The Effect of Some Environmental Influences in Bulk Hybridization of Grass
Creators: name: Clark, John W.
Publisher: name: Utah State University
Year: 1942

description: For decades man has been interested in selection and hybridization of crop plants, but it has not been until in comparatively recent years that anything of importance has been done toward the improvement of perennial forage grasses.
Replies to questionnaries on grass breeding submitted to various agricultural institutions in 1936 revealed the fact that selection for improvement was then under way with a large number of grasses. Limited activities in this field have been in progress for 16 years or more, but organized and intensive grass breeding activities, for the most part, have been inaugurated only within the last ten years.
Many improved strains of grasses have been developed by selective breeding in foreign countries but very few of these have shown outstanding value in the United States. In fact, they are generally inferior.
There is a great deal of interest at the present time in this country in the field of grass breeding, but the smallness of the floral parts of some grasses makes the work of controlled hybridization tedious and slow. A simple, inexpensive, accurate method for bulk hybridization would be useful and would speed up the work. The study herein reported was designed to throw further light on the possibility of bulk hybridization. The technic involves immersion of inflorescences in water heated to specific temperatures to effect enactivation of pollen. As a necessary corollary, the desired pollen is then applied by any of several methods.
Several investigators, mentioned below, have shown that controlled heat treatments applied to inflorescences near the time of anthesis are effective in seriously reducing the viability of pollen without having a similar effect on the female gametophyte. However, none has demonstrated good female fertility following complete male sterilization. It has become apparent that influences of the plants' environment other than the heat of the emasculation treatment must be taken into consideration. In the present study, which was conducted on three important forage grasses, smooth bromegrass (Bromus intermis), crested wheatgrass (Agrpyron cristatum), and bluestem wheatgrass (Agropyron smithii), the general findings of earlier investigators are substantiated and in addition evidence is presented to show (1) the sterilizing effect of the isolation bag and (2) the existence of a daily cycle in the efficiency of emasculation of treatments at critical temperatures.
Implications of a Scalar Dark Force for Terrestrial Experiments
Creators: name: Carroll, Sean M.
name: Mantry, Sonny
name: Ramsey-Musolf, Michael J.
Publisher: name: arXiv
Year: 2009
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: A long range Weak Equivalence Principle (WEP) violating force between Dark Matter (DM) particles, mediated by an ultralight scalar, is tightly constrained by galactic dynamics and large scale structure formation. We examine the implications of such a "dark force" for several terrestrial experiments, including Eotvos tests of the WEP, direct-detection DM searches, and collider studies. The presence of a dark force implies a non-vanishing effect in Eotvos tests that could be probed by current and future experiments depending on the DM model. For scalar singlet DM scenarios, a dark force of astrophysically relevant magnitude is ruled out in large regions of parameter space by the DM relic density and WEP constraints. WEP tests also imply constraints on the Higgs-exchange contributions to the spin-independent (SI) DM-nucleus direct detection cross-section. For WIMP scenarios, these considerations constrain Higgs-exchange contributions to the SI cross-section to be subleading compared to gauge-boson mediated contributions. In multicomponent DM scenarios, a dark force would preclude large shifts in the rate for Higgs decay to two photons associated with DM-multiplet loops that might otherwise lead to measurable deviations at the LHC or a future linear collider. The combination of observations from galactic dynamics, large scale structure formation, Eotvos experiments, DM-direct-detection experiments, and colliders can further constrain the size of new long range forces in the dark sector.
description: 47 pages, 12 figures, References added, table of contents added
Quantum quench in interacting field theory: a self-consistent approximation
Creators: name: Sotiriadis, Spyros
name: Cardy, John
Publisher: name: arXiv
Year: 2010
Subjects: subject: Quantum Physics (quant-ph)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We study a composite quantum quench of the energy gap and the interactions in the interacting ϕ^4 model using a self-consistent approximation. Firstly we review the results for free theories where a quantum quench of the energy gap or mass leads for long times to stationary behaviour with thermal characteristics. An exception to this rule is the 2d case with zero mass after the quench. In the composite quench however we find that the effect of the interactions in our approximation is simply to effectively change the value of the mass. This means on the one hand that the interacting model also exhibits the same stationary behaviour and on the other hand that this is now true even for the massless 2d case.
description: 20 pages, 15 figures / new citations added, minor changes, typos corrected.
Spatiotemporal characteristics and causes of damage to Azorella macquariensis cushions
Creators: name: Abdul-Rahman, J
Publisher: name: University Of Tasmania
Year: 2023

description: Azorella macquariensis is a perennial cushion-forming herb that is endemic to Macquarie Island. During the 2008/09 austral summer, widespread dieback in A. macquariensis was observed, and is regarded by many to be a new phenomenon. The dieback is perceived to have spread across the entire island, affecting up to ~0 % of cushions in some areas. As a result of this perception the species has been listed as critically endangered under the Environment Protection and Biodiversity Conservation (EPBC) Act 1999. Although there have been speculations about potential contributing factors, a definite cause has not been determined. The spatiotemporal characteristics of three dominant damage types affecting the cushion plant were investigated to help determine the cause/s of the putative increasing damage. In the austral summer of 2009/10, data were collected in the course of four studies: a cushion profile study; mapping of the spatial variation of cushion health; monitoring of temporal variation in cushion health; and ¬¨‚àëa study relating soils to health. There was no significant relationship between overall cushion health and environmental variables apart from health decreasing with increasing exposure to strong winds. Type 1 damage was found to be more concentrated on the windward sectors of cushions, was significantly related to cushion exposure, substrate and vegetation community and did not display any major temporal variability. Type 2 damage was found to be more concentrated on the leeward sectors of cushions, was significantly related to cushion exposure, substrate and vegetation community and also did not display any major temporal variability. Type 3 damage was not significantly related to any particular sectors of cushions,nor to the environmental variables with the exception of cushion substrate, and expanded rapidly during the warm season. This suggested that the spatially restricted Type 3 damage might be responsible for the perception of increased dieback. Its cause is uncertain, although many of the symptoms are similar to those of a pathogen. Future monitoring should concentrate on this type of damage.
Investigating the superconducting state of 2$H$-NbS$_2$ as seen by the vortex lattice
Creators: name: Alshemi, A.
name: Campillo, E.
name: Forgan, E. M.
name: Cubitt, R.
name: Abdel-Hafiez, M.
name: Blackburn, E.
Publisher: name: arXiv
Year: 2024
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: 2$H$-NbS$_2$ is a classic example of an anisotropic multi-band superconductor, with significant recent work focussing on the interesting responses seen when high magnetic fields are applied precisely parallel to the hexagonal niobium planes. It is often contrasted with its sister compound 2$H$-NbSe$_2$ because they have similar onset temperatures for superconductivity, but 2$H$-NbS$_2$ has no charge density wave whereas in 2$H$-NbSe$_2$ the charge density wave order couples strongly to the superconductivity. Using small-angle neutron scattering, a bulk-sensitive probe, we have studied the vortex lattice and how it responds to the underlying superconducting anisotropy. This is done by controlling the orientation of the field with respect to the Nb planes. The superconducting anisotropy, $Γ_{ac} = 7.07 \pm 0.2$, is found to be field independent over the range measured (0.15 to 1.25 T), and the magnetic field distribution as a function of the applied magnetic field is found to be in excellent quantitative agreement with anisotropic London theory modified with a core-size cut-off correction, providing the first complete validation of this model. We find values of $λ_{ab} = 141.9 \pm 1.5 $ nm for the in-plane London penetration depth, and $λ_{c} \sim$ 1 \textmu m for the out-of-plane response. The field-independence indicates that we are primarily sampling the larger of the two gaps generating the superconductivity in this material.
description: 13 pges, 8 figuers
title: The Effect of Light, Soil Temperature, and Soil Moisture on High-Lime Chlorosis
Creators: name: Burtch, Lauren M.
Publisher: name: Utah State University
Year: 1948

description: Chlorosis of plants from a lack of available iron is one of the most common plant nutrient problems of the calcareous soils of the west. The disease is characterized by a yellowing of the plant leaves and is accompanied, in severe cases, by a partial root death and premature defoliation (3). In addition to reducing growth, the disease greatly reduces the quality and yield of plants.
Many types of plants are affected by iron chlorosis. In Hawaii and Porto Rico rice, sugar cane and pineapple are susceptible, while in California and Arizona, citrus trees are seriously affected. In Utah apples, peaches, plums, prunes, apricots, pears, grapes, raspberries and many ornamental plants are affected (27). The problem of iron chlorosis, therefore, is of great importance to agriculture in the west.
Chlorosis has been studied for more than one hundred and fifty years, but until recently, little progress has been made toward finding the solution to the problem. Although these past studies have not solved the problem of iron chlorosis, they have shown many factors to be closely related to the occurrence of the disease.
These factors include an unbalanced ratio of available manganese to iron in the growth medium (9, 23, 29); chlorotic leaves are high in potassium, nitrogen in the form of ammonia (21), and in ferric iron and are low in total calcium and ferrous iron in comparison with green leaves (12, 13, 14, 17, 25, 26).
The climatic factors of light, soil temperature and soil moisture also appear to be of fundamental importance in chlorosis. It is a common observation that fruit trees are more chlorotic during the early spring when the temperature of the soil is low and the moisture level high. Many investigators have noted that chlorosis tends to be most severe in the poorly drained portions of fruit orchards when water tends to accumulate. However, the work on the affect of climatic conditions on chlorosis has been limited largely to observations.
The purpose of this investigation was to study, under controlled conditions, the effect of light, soil temperature and soil moisture on a lime-induced chlorosis.
In-Context Symbolic Regression: Leveraging Large Language Models for Function Discovery
Creators: name: Merler, Matteo
name: Haitsiukevich, Katsiaryna
name: Dainese, Nicola
name: Marttinen, Pekka
Publisher: name: arXiv
Year: 2024
Subjects: subject: Computation and Language (cs.CL)
subject: Machine Learning (cs.LG)
subject: FOS: Computer and information sciences

description: State of the art Symbolic Regression (SR) methods currently build specialized models, while the application of Large Language Models (LLMs) remains largely unexplored. In this work, we introduce the first comprehensive framework that utilizes LLMs for the task of SR. We propose In-Context Symbolic Regression (ICSR), an SR method which iteratively refines a functional form with an LLM and determines its coefficients with an external optimizer. ICSR leverages LLMs' strong mathematical prior both to propose an initial set of possible functions given the observations and to refine them based on their errors. Our findings reveal that LLMs are able to successfully find symbolic equations that fit the given data, matching or outperforming the overall performance of the best SR baselines on four popular benchmarks, while yielding simpler equations with better out of distribution generalization.
description: 18 pages, 11 figures
Non-polynomial potentials with deformable topological structures
Creators: name: Chumbes, Augusto E. R.
name: Hott, Marcelo B.
Publisher: name: arXiv
Year: 2009
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We construct models of self-interacting scalar fields whose BPS solutions exhibit kink profiles which can be continuously deformed into two-kinks by varying one of the parameters of the self-interacting potential. The effective models are obtained from other models with two interacting scalar fields. The effective models are then applied in a brane-world scenario where we analyze the consequences of the thicker branes in the warped geometry and in the localization of gravity.
description: 16 pages, 5 figures